CN114633535B - Degradable medical protective clothing material and preparation method and application thereof - Google Patents
Degradable medical protective clothing material and preparation method and application thereof Download PDFInfo
- Publication number
- CN114633535B CN114633535B CN202210335141.3A CN202210335141A CN114633535B CN 114633535 B CN114633535 B CN 114633535B CN 202210335141 A CN202210335141 A CN 202210335141A CN 114633535 B CN114633535 B CN 114633535B
- Authority
- CN
- China
- Prior art keywords
- medical protective
- protective clothing
- poly
- biodegradable film
- parts
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000000463 material Substances 0.000 title claims abstract description 94
- 230000001681 protective effect Effects 0.000 title claims abstract description 58
- 238000002360 preparation method Methods 0.000 title abstract description 9
- -1 polybutylene succinate Polymers 0.000 claims abstract description 21
- 229920000742 Cotton Polymers 0.000 claims abstract description 18
- 229920005586 poly(adipic acid) Polymers 0.000 claims abstract description 18
- WSQZNZLOZXSBHA-UHFFFAOYSA-N 3,8-dioxabicyclo[8.2.2]tetradeca-1(12),10,13-triene-2,9-dione Chemical compound O=C1OCCCCOC(=O)C2=CC=C1C=C2 WSQZNZLOZXSBHA-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229920002961 polybutylene succinate Polymers 0.000 claims abstract description 17
- 239000004631 polybutylene succinate Substances 0.000 claims abstract description 17
- 229920001707 polybutylene terephthalate Polymers 0.000 claims abstract description 15
- 239000004744 fabric Substances 0.000 claims abstract description 14
- 229920000954 Polyglycolide Polymers 0.000 claims abstract description 12
- 239000000853 adhesive Substances 0.000 claims abstract description 12
- 230000001070 adhesive effect Effects 0.000 claims abstract description 12
- 239000004633 polyglycolic acid Substances 0.000 claims abstract description 11
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 claims abstract description 9
- 238000013329 compounding Methods 0.000 claims abstract description 7
- ZMKVBUOZONDYBW-UHFFFAOYSA-N 1,6-dioxecane-2,5-dione Chemical compound O=C1CCC(=O)OCCCCO1 ZMKVBUOZONDYBW-UHFFFAOYSA-N 0.000 claims abstract description 6
- 238000010096 film blowing Methods 0.000 claims description 6
- AXKZIDYFAMKWSA-UHFFFAOYSA-N 1,6-dioxacyclododecane-7,12-dione Chemical compound O=C1CCCCC(=O)OCCCCO1 AXKZIDYFAMKWSA-UHFFFAOYSA-N 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 239000003292 glue Substances 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 claims description 3
- 238000007664 blowing Methods 0.000 claims description 2
- 238000005266 casting Methods 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims description 2
- 230000008569 process Effects 0.000 claims description 2
- 239000007921 spray Substances 0.000 claims 1
- 230000004888 barrier function Effects 0.000 abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 16
- 239000002994 raw material Substances 0.000 abstract description 4
- 239000002861 polymer material Substances 0.000 abstract description 2
- 238000006065 biodegradation reaction Methods 0.000 description 15
- 230000015556 catabolic process Effects 0.000 description 12
- 230000000052 comparative effect Effects 0.000 description 12
- 238000006731 degradation reaction Methods 0.000 description 12
- 230000002706 hydrostatic effect Effects 0.000 description 10
- 229950008885 polyglycolic acid Drugs 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- 239000002131 composite material Substances 0.000 description 5
- 239000010410 layer Substances 0.000 description 5
- 239000004745 nonwoven fabric Substances 0.000 description 5
- 238000005259 measurement Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 208000015181 infectious disease Diseases 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 229920001896 polybutyrate Polymers 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- 208000034530 PLAA-associated neurodevelopmental disease Diseases 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 244000052616 bacterial pathogen Species 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000001124 body fluid Anatomy 0.000 description 1
- 239000010839 body fluid Substances 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229920006238 degradable plastic Polymers 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 230000005180 public health Effects 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 230000028327 secretion Effects 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
- A41D13/12—Surgeons' or patients' gowns or dresses
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D31/00—Materials specially adapted for outerwear
- A41D31/02—Layered materials
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D31/00—Materials specially adapted for outerwear
- A41D31/04—Materials specially adapted for outerwear characterised by special function or use
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D31/00—Materials specially adapted for outerwear
- A41D31/04—Materials specially adapted for outerwear characterised by special function or use
- A41D31/10—Impermeable to liquids, e.g. waterproof; Liquid-repellent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/06—Vegetal fibres
- B32B2262/062—Cellulose fibres, e.g. cotton
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/54—Yield strength; Tensile strength
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/716—Degradable
- B32B2307/7163—Biodegradable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/724—Permeability to gases, adsorption
- B32B2307/7242—Non-permeable
- B32B2307/7246—Water vapor barrier
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2437/00—Clothing
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2467/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2467/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2467/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2467/04—Polyesters derived from hydroxy carboxylic acids, e.g. lactones
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Health & Medical Sciences (AREA)
- Materials Engineering (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Materials For Medical Uses (AREA)
Abstract
The invention relates to a high polymer material, and particularly discloses a degradable medical protective clothing material, and a preparation method and application thereof. The degradable medical protective clothing material comprises an outer layer made of a biodegradable film, an inner layer made of all-cotton spunlaced cloth and a water-soluble adhesive positioned between the inner layer and the outer layer; the biodegradable film comprises the following components in parts by weight: 10-40 parts of polyglycolic acid, 30-70 parts of poly (adipic acid)/butylene terephthalate and 5-30 parts of poly (butylene succinate). The medical protective clothing is made of biodegradable raw materials, so that the material has excellent biodegradability, excellent mechanical properties and softness, and the water vapor barrier property of the material can be further improved by adding polybutylene succinate and polybutylene adipate/terephthalate into the biodegradable film and compounding the polybutylene succinate and the polybutylene adipate/terephthalate in a specific ratio.
Description
Technical Field
The invention relates to a high polymer material, in particular to a degradable medical protective clothing material, a preparation method and application thereof.
Background
Medical personnel often come into contact with the blood, body fluids, secretions, etc. of patients containing viruses during contact with the patient, surgery, and treatment activities, thereby increasing the risk of infection. Medical protective apparel is therefore a daily necessity of consumable items for medical personnel. Medical protective clothing refers to protective clothing used by medical staff (doctors, nurses, public health staff, cleaning staff and the like) and people entering a specific medical and health area (such as patients, hospital visit staff, people entering an infection area and the like), and has the functions of isolating germs, harmful superfine dust, acid-base solution, electromagnetic radiation and the like, and ensuring the safety of the staff and keeping the environment clean.
The existing medical protective clothing mainly adopts PE, PP and PU non-woven fabrics, the fabrics have poor degradability, secondary pollution is caused in soil for a long time after the direct landfill treatment after disinfection, secondary pollution is caused to air after incineration, and the effective environmental friendliness is lacking.
Biodegradable materials are plastics that meet the use requirements for each property during storage, and after use, degrade environmentally friendly substances under natural environmental conditions, and are considered as one of the effective ways to solve the problem of plastic contamination. Currently, there are PLA, PBAT, PBS, PCL and PGA as commercially available degradable plastic films. Chinese patent (212393989U) discloses a degradable respiratory film for medical protective clothing, which is obtained by blending PLA and PBAT, but the degradable film is hard, low in tensile strength, poor in water vapor barrier property and poor in comfort level.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a degradable medical protective clothing material, a preparation method and application thereof, and the medical protective clothing has complete biodegradability and excellent mechanical property and softness.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
The invention provides a degradable medical protective clothing material, which comprises an outer layer made of a biodegradable film, an inner layer made of all-cotton spunlaced cloth and a water-soluble adhesive positioned between the inner layer and the outer layer;
The biodegradable film comprises the following components in parts by weight:
10-40 parts of polyglycolic acid, 30-70 parts of poly (adipic acid)/butylene terephthalate and 5-30 parts of poly (butylene succinate).
The medical protective clothing material is prepared from the biodegradable raw materials, so that the medical protective clothing material has excellent biodegradability, wherein the inner layer adopts the all-cotton spunlaced cloth to ensure the biodegradability of the material, and the mechanical property and softness of the material can be improved, so that the wearing comfort of the medical protective clothing material is improved.
The poly (butylene succinate) is added into the biodegradable film, so that the degradation rate of the material can be accelerated, and the water vapor barrier property of the material can be improved; the water vapor barrier property of the material can be further improved by compounding the polybutylene succinate and the polybutylene adipate/terephthalate in a specific ratio.
As a preferred embodiment of the medical protective clothing material, the biodegradable film comprises the following components in parts by weight:
15 to 35 parts of polyglycolic acid, 40 to 65 parts of poly (butylene adipate/terephthalate) and 7.5 to 25 parts of poly (butylene succinate).
When the biodegradable film adopts the raw materials in parts by weight, the degradation rate of the material can be further improved, and the mechanical property and the barrier property of the material can be improved.
As a preferable implementation mode of the medical protective clothing material, the gram weight of the biodegradable film is 12-60 g/m 2.
As a preferable implementation mode of the medical protective clothing material, the gram weight of the all-cotton spunlaced fabric is 30-60 g/m 2.
As a preferred embodiment of the medical protective clothing material according to the invention, the number average molecular weight of the poly (butylene adipate/terephthalate) is 60000-70000.
When the molecular weight is adopted by the poly (butylene adipate/terephthalate), the prepared biodegradable film has excellent biodegradability and mechanical property. The molecular weight of the poly (butylene adipate/terephthalate) is too large to be beneficial to biodegradation in the process of a molecular chain, and the structure of the material is affected by the too low molecular weight of a degradable film, so that the barrier property of the material is reduced.
As a preferable embodiment of the medical protective clothing material of the invention, the gram weight of the water-soluble adhesive is 1-5 g/m 2.
When the weight of the biodegradable film, the all-cotton spunlaced fabric and the water-soluble adhesive is selected, the comprehensive properties of the medical protective clothing material such as the biodegradation rate, the tensile strength, the softness, the water vapor barrier property and the like can be improved.
As a preferred embodiment of the medical protective clothing material, the biodegradable film is made by adopting a casting or film blowing mode. Preferably, the biodegradable film is made by film blowing.
As a preferred embodiment of the medical protective clothing material, the medical protective clothing material is made by one of scraping glue, net roller transferring and glue spraying. Preferably, the medical protective clothing material is made by adopting a glue spraying mode.
The invention also provides a preparation method of the medical protective clothing material, which comprises the following steps:
1) Drying polyglycolic acid, poly adipic acid/butylene terephthalate and poly butylene succinate according to the proportion, adding into an extruder for melt extrusion, and blowing and molding to obtain a biodegradable film;
2) The biodegradable film and the all-cotton spunlaced cloth are compounded at high speed, and water-soluble adhesive with the gram weight of 1-5 g/m 2 is smeared to prepare the medical protective clothing material.
As a preferred embodiment of the preparation method of the medical protective clothing material, in the step 2), the composite pressure is between 0.1 and 0.3MPa, and the m/min is between 40 and 250.
Preferably, the blown film has a blown film ratio of 1:3 and an aspect ratio of the extruder of 28:1.
In addition, the invention also provides application of the medical protective clothing material to medical supplies.
Compared with the prior art, the invention has the following beneficial effects:
The invention provides a medical protective clothing material and a preparation method and application thereof, wherein the medical protective clothing is prepared from biodegradable raw materials, so that the material has excellent biodegradability, excellent mechanical properties and softness, and the addition of polybutylene succinate in a biodegradable film can accelerate the degradation rate of the material, improve the hydrostatic pressure of the material and further improve the water vapor barrier property of the material; the water vapor barrier property of the material can be further improved by compounding the polybutylene succinate and the polybutylene adipate/terephthalate in a specific ratio.
Detailed Description
For a better description of the objects, technical solutions and advantages of the present invention, the present invention will be further described with reference to the following specific examples.
In the following examples and comparative examples, the experimental methods used were conventional methods unless otherwise specified, and the materials, reagents and the like used, unless otherwise specified, were all commercially available.
The starting materials for both examples and comparative examples were commercially available from the following sources:
All-cotton spunlaced fabric-1: SCB-40 1615 (NB), available from Norbang, hangzhou, inc.;
All-cotton spunlaced fabric-2: SCB-40 1615 (JSF), available from Guangdong Santa Classification technology Co., ltd;
All-cotton spunlaced fabric-3: SCB-40 1615 (JSF), available from Dalian Rui nonwoven fabrics group Co., ltd;
spunbond nonwoven fabric: WFB-33 1615 (JSF), available from Guangdong gold Santa technology Co., ltd;
Polyglycolic acid: brand PGA-201-1412, available from Zhejiang silver good degradation New Material Co., ltd;
polyadipic acid/butylene terephthalate 1: number KPBAT-S3W1910, number average molecular weight 60000-70000, available from Jinfa technologies Co., ltd;
polyadipic acid/butylene terephthalate 2: trade mark KPBAT-S3W1915, number average molecular weight 40000-50000, available from Jinfa technologies Co., ltd;
Polyadipic acid/butylene terephthalate 3: number KPBAT-S3W1915, number average molecular weight 80000-100000, available from Jinfa technologies Co., ltd;
Polybutylene succinate: SRJ-201, available from Hangao (China) investment Co., ltd;
Water-soluble adhesive: SRJ-201, available from Hangao (China) investment Co., ltd.
Examples 1 to 26
Examples 1-26 and comparative examples 1-7 provide medical protective clothing materials, the formulation of which in parts by weight is shown in Table 1, and the preparation method is as follows:
1) Drying polyglycolic acid, poly adipic acid/butylene terephthalate and poly butylene succinate according to a proportion, adding the dried poly glycolic acid, poly adipic acid/butylene terephthalate and poly butylene succinate into a screw extruder for melt extrusion, wherein the temperatures from a feed inlet to different areas of a machine head are 140 ℃, 180 ℃, and film blowing forming, the film blowing ratio of film blowing is 1:3, the length-diameter ratio of the extruder is 28:1, a biodegradable film is obtained, and the thickness uniformity of the film is ensured by adjusting the adding speed (traction ratio: 3-7) of the poly butylene succinate;
2) And (3) compounding the prepared biodegradable film with all-cotton spunlaced fabric-1 at a high speed of 80m/min under a compounding pressure of 0.2MPa, and coating a water-soluble adhesive to obtain the medical protective clothing material.
TABLE 1
The materials prepared in examples 1-26 and comparative examples 1-7 were subjected to performance testing:
1) Biodegradation rate: the biodegradation rate of the material after 90 days is measured according to the carbon dioxide release measurement method for evaluating the biodegradability of the textile nonwoven fabric GB/T33616-2017;
2) Tensile strength: determination of the tensile Strength of materials using an electronic Strength Meter according to GB/T3923.1-1997
3) Softness: measurement of fabric drape by dynamic method using a softness tester according to GB/T23329-2009 measurement of fabric drape of textile.
4) Hydrostatic pressure: the hydrostatic pressure test was performed according to GB/T4744-1997 method using a water permeation resistance tester.
The test results are shown in Table 2.
TABLE 2
Referring to table 1, the biodegradation rates of the medical protective clothing materials prepared by adopting all-cotton spunlaced fabrics of different types in examples 1-3 can reach 95% -97% after testing for 90 days, and the medical protective clothing materials have excellent biodegradability and better tensile strength, water vapor barrier property and softness.
Examples 4-7 the medical protective clothing materials prepared from different parts by weight of poly (adipic acid)/butylene terephthalate have the biodegradation rate of more than or equal to 85% after 90 days of testing, and the tensile strength, the water vapor barrier property and the softness are also better, wherein examples 5-6 have better effects than examples 4 and 7, which show that poly (adipic acid)/butylene terephthalate has a larger influence on the biodegradation rate of the protective clothing.
The medical protective clothing materials prepared by using the polybutylene succinate with different parts by weight in the examples 8-11 have better comprehensive performance; examples 9-10 are better than 8, 11.
The medical protective clothing materials prepared in examples 13-14 have better biodegradation rate and water vapor barrier property than 12 and 15 by adopting the polyglycolic acid with different weight portions, which has obvious influence on the biodegradation rate and water vapor barrier property of the medical protective clothing materials.
Examples 16 to 18 use all-cotton spunlaced fabrics-1 with different gram weights, examples 19 to 20 use adhesives with different gram weights, examples 21 to 23 use biodegradable films with different gram weights, and the tensile strength and hydrostatic pressure of the prepared medical protective clothing are gradually increased and the softness of the medical protective clothing is reduced along with the increase of the gram weights of the all-cotton spunlaced fabrics-1, the adhesives and the biodegradable films.
The 90-day biodegradation rate of the medical protective clothing material prepared in example 25 is 96%, which shows that when the molecular weight of the poly (adipic acid)/butylene terephthalate is lower than 60000-70000, the degradation rate and the softness of the material are basically kept unchanged, the tensile strength of the material is reduced compared with that of example 1, so that the hydrostatic pressure of the composite material is reduced, and further shows that the poly (adipic acid)/butylene terephthalate has a gain effect on the mechanical property and the water vapor barrier property of a biodegradable film when the molecular weight of the poly (adipic acid)/butylene terephthalate is between 60000-70000.
The 90-day biodegradation rate of the medical protective clothing material prepared in example 26 is 92%, which shows that when the molecular weight of the poly (adipic acid)/butylene terephthalate is higher than 60000-70000, the mechanical property, the softness and the hydrostatic pressure of the material are basically unchanged, the degradation rate of the material is reduced compared with that of example 1, and further shows that the molecular weight of the poly (adipic acid)/butylene terephthalate is between 60000-70000, and the material has a gain effect on the degradation rate of a biodegradable film.
The medical protective clothing material prepared in the comparative example 1 is replaced by spun-bonded non-woven fabric, the biodegradation rate of the material is only 15% after 90 days of testing, the material does not have the biodegradability, the tensile strength of the material is reduced, and the softness is poor (234 mN is improved to 564 mN), so that the comfort is reduced.
The material prepared in the comparative example 2 does not contain a biodegradable film, the biodegradation rate of the material can reach 84% after 90 days of testing, the material has better biodegradability, the tensile strength and softness of the material in the comparative example 2 are similar to those of the material in the example 24, but the hydrostatic pressure of the material is reduced by 90%, and the fabric loses the water vapor barrier property and cannot be used as a medical protective clothing material.
The softness of the material of the comparative example 3 (without the all-cotton spunlaced fabric-1) and the softness of the material of the example 24 are basically unchanged, but the tensile strength of the material is seriously reduced, and the hydrostatic pressure is also drastically reduced, so that the composite of the all-cotton spunlaced fabric-1 and the biodegradable film has obvious improvement on the mechanical and barrier properties of the material, the degradation effect is better than that of the biodegradable film of a single layer, and the mechanical property and the barrier property of the single biodegradable film are lower, and the material cannot be used as a medical protective clothing material.
The biodegradable film prepared in comparative example 4 is free of polybutylene succinate, and the prepared medical protective clothing material has a biodegradation rate of 70% after 90 days of measurement, which indicates that the degradation rate of the material is reduced when the biodegradable film is free of polybutylene succinate, and further indicates that the degradation rate of the material can be accelerated by adding polybutylene succinate. The tensile strength and softness of the composite material without PBS was similar to that of example 24, but the hydrostatic pressure of the material was reduced, indicating that the addition of PBS also had a gain effect on the barrier properties of the composite film.
The biodegradation rate of the medical protective clothing material prepared in comparative example 5, measured for 90 days, is 80%, which shows that when the content of the polybutylene succinate is lower than 5-30 parts by weight, the tensile strength and softness of the material with the degradation rate reduced are basically unchanged from those of the material prepared in example 24, but the hydrostatic pressure of the material prepared in comparative example 5 is reduced compared with that of the material prepared in example 24, and further shows that the addition of the polybutylene succinate with a proper proportion has a gain effect on the water vapor barrier property of the biodegradable film.
From comparative examples 6-7, it can be seen that polyglycolic acid, poly (adipic acid)/poly (butylene terephthalate) and poly (butylene succinate) have better degradation performance, tensile strength, flexibility and water vapor barrier property at a proper ratio.
Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present invention may be modified or substituted equally without departing from the spirit and scope of the technical solution of the present invention.
Claims (6)
1. A degradable medical protective clothing material is characterized by comprising an outer layer made of a biodegradable film, an inner layer made of all-cotton spunlaced cloth and a water-soluble adhesive positioned between the inner layer and the outer layer;
The biodegradable film comprises the following components in parts by weight: 15-35 parts of polyglycolic acid, 40-65 parts of poly (adipic acid)/butylene terephthalate and 7.5-25 parts of poly (butylene succinate);
the number average molecular weight of the poly (butylene adipate/terephthalate) is 60000-70000; the gram weight of the biodegradable film is 20-60 g/m 2;
the gram weight of the all-cotton spunlaced fabric is 30-60g/m 2;
The gram weight of the water-soluble adhesive is 3-5 g/m 2.
2. The medical protective garment material of claim 1, wherein the biodegradable film is formed by casting or film blowing.
3. The medical protective garment material of claim 1, wherein the medical protective garment material is made by one of doctor blade, web roll transfer and glue spray.
4. A method of producing a medical protective garment material according to any one of claims 1 to 3, comprising the steps of:
1) Drying polyglycolic acid, poly adipic acid/butylene terephthalate and poly butylene succinate according to the proportion, adding into an extruder for melt extrusion, and blowing and molding to obtain a biodegradable film;
2) The biodegradable film and the all-cotton spunlaced cloth are compounded at high speed, and water-soluble adhesive with the gram weight of 3-5 g/m 2 is smeared to prepare the medical protective clothing material.
5. The process according to claim 4, wherein in step 2), the compounding speed is 40 to 250m/min and the compounding pressure is 0.1 to 0.3MPa.
6. Use of a medical protective clothing material according to any one of claims 1 to 3 in medical articles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210335141.3A CN114633535B (en) | 2022-03-31 | 2022-03-31 | Degradable medical protective clothing material and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210335141.3A CN114633535B (en) | 2022-03-31 | 2022-03-31 | Degradable medical protective clothing material and preparation method and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114633535A CN114633535A (en) | 2022-06-17 |
| CN114633535B true CN114633535B (en) | 2024-07-30 |
Family
ID=81951698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210335141.3A Active CN114633535B (en) | 2022-03-31 | 2022-03-31 | Degradable medical protective clothing material and preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114633535B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201683074U (en) * | 2010-03-31 | 2010-12-29 | 稳健实业(深圳)有限公司 | Breathable all-cotton medical protective clothing |
| CN113232395A (en) * | 2021-03-04 | 2021-08-10 | 珠海横琴辉泽丰包装科技有限公司 | Full-biodegradable composite film material with barrier property and packaging bag thereof |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100369209B1 (en) * | 2000-03-29 | 2003-01-24 | 한국과학기술연구원 | High Strength Biodegradable Polymer Materials for Fixing Bone and Process for Preparation Thereof |
| FI124772B (en) * | 2012-10-26 | 2015-01-30 | Stora Enso Oyj | Process for the production of biodegradable packaging material, biodegradable packaging material and packaging or containers made therefrom |
| CN103211328A (en) * | 2013-03-27 | 2013-07-24 | 蚌埠市惠鸿电子科技有限公司 | Medical protective suit |
| CN103252951B (en) * | 2013-05-24 | 2015-07-22 | 世源科技(嘉兴)医疗电子有限公司 | Biodegradation multilayer composite material with high moisture penetrability |
| CA2928718C (en) * | 2013-10-27 | 2019-07-16 | Tipa Corp. Ltd | Biodegradable multi-layered sheet comprising at least two hydrophobic polymers |
| KR102245848B1 (en) * | 2020-07-10 | 2021-04-28 | 에콜그린텍(주) | PLA composite and method of melt blown nano nonwoven fabric |
| CN112341763A (en) * | 2020-09-11 | 2021-02-09 | 喀什中天节水科技有限公司 | PBAT composite material film and preparation method and application thereof |
| CN113214748A (en) * | 2021-03-04 | 2021-08-06 | 珠海横琴辉泽丰包装科技有限公司 | Full-biodegradable high-tension film adhesive tape material structure |
-
2022
- 2022-03-31 CN CN202210335141.3A patent/CN114633535B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201683074U (en) * | 2010-03-31 | 2010-12-29 | 稳健实业(深圳)有限公司 | Breathable all-cotton medical protective clothing |
| CN113232395A (en) * | 2021-03-04 | 2021-08-10 | 珠海横琴辉泽丰包装科技有限公司 | Full-biodegradable composite film material with barrier property and packaging bag thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114633535A (en) | 2022-06-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2006347731B2 (en) | Highly breathable biodegradable films | |
| Panzavolta et al. | Electrospun gelatin nanofibers: Optimization of genipin cross-linking to preserve fiber morphology after exposure to water | |
| CN106687082B (en) | Elastic hot melt adhesive composition and elastic composite prepared therefrom | |
| US7153569B2 (en) | Biodegradable aliphatic-aromatic copolyester films | |
| JP6026742B2 (en) | Method for producing an elastic composite structure useful as a component for disposable hygiene products and clothing | |
| US20030162013A1 (en) | Articles comprising biodegradable films having enhanced ductility and breathability | |
| EP1725273A1 (en) | Wound dressings comprising hydrated hydrogels and enzymes | |
| CN107974729A (en) | A kind of high-ductility acid fiber by polylactic and preparation method and application | |
| CN110406215B (en) | Full-degradable antibacterial non-woven fabric | |
| WO2021042717A1 (en) | Algae-modified pp spunbonded non-woven fabric | |
| US20100159769A1 (en) | Plasticizer for thermoplastic materials | |
| KR20060109890A (en) | Biodegradable and breathable polymer film | |
| KR101576246B1 (en) | nano fiber sheet for antiadhesion using water soluble chitosan and poly ethylene oxide manufacturing method thereof | |
| EP1292629B1 (en) | Glove comprising a polyhydroxyalkanoate | |
| CN114633535B (en) | Degradable medical protective clothing material and preparation method and application thereof | |
| Vogt et al. | Random and aligned electrospun poly (ε-caprolactone)(PCL)/poly (1, 8-octanediol-co-citrate)(POC) fiber mats for cardiac tissue engineering using benign solvents | |
| CN112778603A (en) | Creep-resistant breathable film composition and preparation method thereof | |
| CN113087883B (en) | Antiviral polylactic acid melt-blown material and preparation method and application thereof | |
| CN111501364A (en) | Processing method of special fabric for medical isolation protective clothing | |
| CN111440582A (en) | High-thermal-conductivity polyurethane hot melt adhesive, preparation method and application thereof, and protective clothing | |
| JP2002035037A (en) | Biodegradable hygienic article | |
| CN110578208A (en) | nano fiber multi-component composite silk soft non-woven fabric and manufacturing method thereof | |
| KR102418918B1 (en) | Biodegradable nonwoven fabric improved in flexibility and softness, preparation thereof and biodegradable mask using the same | |
| Vora | Design & Development of Surgical Gowns to Enhance Its Performance | |
| MX2011006579A (en) | Plasticizer for thermoplastic polymer materials. |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |