CN108017768A - A kind of soft bubble of high hardness polyurethane and preparation method thereof - Google Patents
A kind of soft bubble of high hardness polyurethane and preparation method thereof Download PDFInfo
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- CN108017768A CN108017768A CN201711011858.8A CN201711011858A CN108017768A CN 108017768 A CN108017768 A CN 108017768A CN 201711011858 A CN201711011858 A CN 201711011858A CN 108017768 A CN108017768 A CN 108017768A
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- parts
- high hardness
- starch
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- soft bubble
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/4009—Two or more macromolecular compounds not provided for in one single group of groups C08G18/42 - C08G18/64
- C08G18/4081—Mixtures of compounds of group C08G18/64 with other macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/64—Macromolecular compounds not provided for by groups C08G18/42 - C08G18/63
- C08G18/6484—Polysaccharides and derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2110/00—Foam properties
- C08G2110/0008—Foam properties flexible
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2110/00—Foam properties
- C08G2110/0041—Foam properties having specified density
- C08G2110/005—< 50kg/m3
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2110/00—Foam properties
- C08G2110/0083—Foam properties prepared using water as the sole blowing agent
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
The present invention provides a kind of soft bubble of high hardness polyurethane, and in parts by weight, its formula is：75~85 parts of polyether polyol, 15~25 parts of starch, 2.5~3.5 parts of water, 0.1~0.15 part of amines catalyst, 0.15~0.25 part of organotin catalysts, 1.5~2.0 parts of surfactant, 51~52 parts of isocyanates.Use starch 1：1 substituted polymer polyalcohol, the starch material in production process will not produce workshop environment and plant emissions additional contamination, and for starch to human body non-hazardous, secondary pollution will not be caused to the use environment of product by being present in sponge finished product.
Description
Technical field
The invention belongs to sponge foaming technical field, is related to soft bubble of a kind of high hardness polyurethane and preparation method thereof.
Background technology
Soft polyurethane foam product primary raw material is polyether polyol (PPG) and isocyanates (TDI).In some higher hardness
In the soft polyurethane foam product of demand, partial polymer polyalcohol (POP) is usually added to improve the hardness of soft bubble and load；
Since polymer polyatomic alcohol (POP) is come by PPG graft phenylethenes-acrylonitrile polymerization production, in graft copolymerization process
In larger pollution pressure is caused to environment；In grafting process, remaining styrene/acrylonitrile monomer prolonged stay in sponge into
In product, secondary pollution is caused to the use environment of finished product.With the development of Environmental Protection in China cause, high rigidity high-mechanic type is gathered
The soft bubble of urethane will also propose the environmental requirement of higher.
Starch is a kind of natural products for being widely present in plant kingdom, can be contained by corn, sweet potato, wild acorn nut and pueraria lobata etc.
Extract and obtain in the material of starch, acquisition channel is extensive, and pollution will not be produced substantially to environment.
Starch (amylum) molecular formula (C6H10O5) n, can be regarded as the high polymer of glucose ,-OH groups therein can
With isocyanates-NCO group reaction generation carbamate, and then formed cross-linked structure.By adding starch powder
Substituted polymer polyalcohol (POP), improves polyurethane products hardness and supportive, reaches reinforcing effect.In addition, starch is to human body
Non-hazardous, secondary pollution will not be caused to the use environment of product by being present in sponge finished product.
The content of the invention
The purpose of the present invention is for existing technology, there are the above problem, it is proposed that a kind of soft bubble of high hardness polyurethane and
Its preparation method, uses starch 1：1 substituted polymer polyalcohol, no matter in process of production or during use, all without
Produce additional contamination.
The purpose of the present invention can be realized by following technical proposal：A kind of soft bubble of high hardness polyurethane, it is characterised in that
In parts by weight, its formula is：
75~85 parts of polyether polyol,
15~25 parts of starch,
2.5~3.5 parts of water,
0.1~0.15 part of amines catalyst,
0.15~0.25 part of organotin catalysts,
1.5~2.0 parts of surfactant,
51~52 parts of isocyanates.
Wherein, the nco index 108%~112% of soft polyurethane foam.
Wherein, the additive amount of starch is the 10~30% of polyalcohols material gross mass.
The invention also discloses the preparation method of the soft bubble of high hardness polyurethane, it is characterised in that comprises the following steps：
(1) preparation of raw material：The raw material is ready to according to formula, wherein, component A by polyether polyol, starch,
Water, amines catalyst, organotin catalysts, surfactant are mixed by formula ratio, and 30~50s of stirring makes it fully mixed
Close, B component is single isocyanate prepolymer composition；
(2) mix：The ready component A of step (1), B component raw material are mixed, with the speed of 6000rpm stirring 6~
8s；
(3) it is milky white：Mixture is quickly poured into mould, observes it by the translucent viscous fluid for fading to full muddiness, turning white
Body；
(4) gel：The foams that observation rises stop increasing, and have a large amount of bubbles to spue from epidermis.
In step (1), 28 DEG C~30 DEG C of material temperature.
In step (2), using 6~8S of head mixing time.
In step (3), cream time is 16~26s.
In step (4), gel time is 100~150s.
Production technology explanation：Use starch 1：1 substituted polymer polyalcohol, to reduce the fluctuation range of sponge hardness；Increase
Add the dosage of surfactant.Because starch is a kind of solid powder, it is present in initial reaction stage in foams, has defoaming and steep
Harmful effect, surface tension is reduced by improving the dosage of surfactant, gross porosity caused by preventing defoaming effect too strong
Random hole, or even bubble accident of collapsing.
Reduce foaming agent (water) dosage, because in native starch containing 1% or so moisture content, therefore the dosage of foaming agent (water)
It is necessarily drawn to reduce, it is relatively low to avoid sponge density.
In production technology, cream time and gel time are extended.Because starch is a kind of solid powder, and liquid mixes
During conjunction, mixing efficiency and mixture homogeneity directly affect the stability of sponge finished product.By extending the reaction time, make foam
Physical efficiency stably increases and is molded.
Compared with prior art, soft bubble of this high hardness polyurethane and preparation method thereof, uses starch 1：1 substituted polymer is more
First alcohol, the starch material in production process will not produce additional contamination to workshop environment and plant emissions, and starch is to human body
Non-hazardous, secondary pollution will not be caused to the use environment of product by being present in sponge finished product.
Embodiment
The soft bubble of this high hardness polyurethane, in parts by weight, its formula is：80 parts of polyether polyol, 20 parts of starch, water
3.0 parts, 0.13 part of amines catalyst, 0.2 part of organotin catalysts, 1.8 parts of surfactant, 51.7 parts of isocyanates.
Wherein, the nco index 110% of soft polyurethane foam.
Wherein, the additive amount of starch is the 10~30% of polyalcohols material gross mass.
The invention also discloses the preparation method of the soft bubble of high hardness polyurethane, comprise the following steps：
(1) preparation of raw material：The raw material is ready to according to formula, wherein, component A by polyether polyol, starch,
Water, amines catalyst, organotin catalysts, surfactant are mixed by formula ratio, and stirring 40s is sufficiently mixed it, B
Component is single isocyanate prepolymer composition；
(2) mix：The ready component A of step (1), B component raw material are mixed, 8s is stirred with the speed of 6000rpm；
(3) it is milky white：Mixture is quickly poured into mould, observes it by the translucent viscous fluid for fading to full muddiness, turning white
Body；
(4) gel：The foams that observation rises stop increasing, and have a large amount of bubbles to spue from epidermis.
In step (1), 28 DEG C of material temperature.
In step (2), using head mixing time 8s.
In step (3), cream time 20s.
In step (4), gel time 120s.
Bubble soft to the D30-amylum using starch reinforcement and the soft bubble progress physical properties of D30 using POP reinforcement respectively
Test, for finished product physical property measurement result referring to table 1, it using polymer polyatomic alcohol (POP) be that raw material foams the polyurethane that forms that D30, which is,
Soft bubble, it using starch powder is the soft polyurethane foam that forms of raw material end foaming that D30-amylum, which is,.
1 finished product physical property measurement of table is reported
It can be seen that from test report, using the hardness number of the soft bubbles of the D30-amylum of starch reinforcement with being mended using POP
The hardness number of the soft bubbles of strong D30 is close even better, and the stretching of D30-amylum and elongation at break are slightly below the soft bubbles of D30.
On the whole, every physical index of the soft bubbles of D30-amylum meets the technical requirements of product.
Claims (8)
1. a kind of soft bubble of high hardness polyurethane, it is characterised in that in parts by weight, its formula is：
75~85 parts of polyether polyol,
15~25 parts of starch,
2.5~3.5 parts of water,
0.1~0.15 part of amines catalyst,
0.15~0.25 part of organotin catalysts,
1.5~2.0 parts of surfactant,
51~52 parts of isocyanates.
2. the soft bubble of high hardness polyurethane according to claim 1, it is characterised in that the nco index 108% of soft polyurethane foam
~112%.
3. the soft bubble of high hardness polyurethane according to claim 1, it is characterised in that the additive amount of starch is polyalcohols thing
The 10~30% of matter gross mass.
4. a kind of preparation method of the soft bubble of high hardness polyurethane, it is characterised in that comprise the following steps：
(1) preparation of raw material：The raw material is ready to according to formula, wherein, component A is by polyether polyol, starch, water, amine
Class catalyst, organotin catalysts, surfactant are mixed by formula ratio, and 30~50s of stirring is sufficiently mixed it, B
Component is single isocyanate prepolymer composition；
(2) mix：The ready component A of step (1), B component raw material are mixed, 6~8s is stirred with the speed of 6000rpm；
(3) it is milky white：Mixture is quickly poured into mould, observes it by the translucent thick liquid for fading to full muddiness, turning white；
(4) gel：The foams that observation rises stop increasing, and have a large amount of bubbles to spue from epidermis.
5. the preparation method of the soft bubble of high hardness polyurethane according to claim 4, it is characterised in that in step (1), raw material
28 DEG C~30 DEG C of temperature.
6. the preparation method of the soft bubble of high hardness polyurethane according to claim 4, it is characterised in that in step (2), use
6~8S of head mixing time.
7. the preparation method of the soft bubble of high hardness polyurethane according to claim 4, it is characterised in that milky white in step (3)
Time is 16~26s.
8. the preparation method of the soft bubble of high hardness polyurethane according to claim 4, it is characterised in that in step (4), gel
Time is 100~150s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711011858.8A CN108017768A (en) | 2017-10-26 | 2017-10-26 | A kind of soft bubble of high hardness polyurethane and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711011858.8A CN108017768A (en) | 2017-10-26 | 2017-10-26 | A kind of soft bubble of high hardness polyurethane and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108017768A true CN108017768A (en) | 2018-05-11 |
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ID=62080222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711011858.8A Pending CN108017768A (en) | 2017-10-26 | 2017-10-26 | A kind of soft bubble of high hardness polyurethane and preparation method thereof |
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| CN (1) | CN108017768A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111690112A (en) * | 2020-05-27 | 2020-09-22 | 惠州市新达发实业有限公司 | Polyurethane sponge containing plant components and production method thereof |
| CN117903399A (en) * | 2024-01-09 | 2024-04-19 | 泰州市宏腾科技有限公司 | Sound-absorbing sponge strip for vehicle and preparation process thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102492109A (en) * | 2011-11-28 | 2012-06-13 | 西安科技大学 | Biodegradable high-resilience flexible polyurethane foam plastics and its preparation method |
| CN104672427A (en) * | 2014-12-31 | 2015-06-03 | 上海馨源新材料科技有限公司 | High-hardness polyurethane flexible foam for automotive interior parts and preparation method of foam |
-
2017
- 2017-10-26 CN CN201711011858.8A patent/CN108017768A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102492109A (en) * | 2011-11-28 | 2012-06-13 | 西安科技大学 | Biodegradable high-resilience flexible polyurethane foam plastics and its preparation method |
| CN104672427A (en) * | 2014-12-31 | 2015-06-03 | 上海馨源新材料科技有限公司 | High-hardness polyurethane flexible foam for automotive interior parts and preparation method of foam |
Non-Patent Citations (1)
| Title |
|---|
| 郭金全等: "玉米淀粉对聚氨酯（PU）泡沫化学改性的研究", 《厦门大学学报（自然科学版）》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111690112A (en) * | 2020-05-27 | 2020-09-22 | 惠州市新达发实业有限公司 | Polyurethane sponge containing plant components and production method thereof |
| CN117903399A (en) * | 2024-01-09 | 2024-04-19 | 泰州市宏腾科技有限公司 | Sound-absorbing sponge strip for vehicle and preparation process thereof |
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Application publication date: 20180511 |
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