AU2021103268A4 - Two-component polyurethane composition and its preparation method, and application thereof - Google Patents
Two-component polyurethane composition and its preparation method, and application thereof Download PDFInfo
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- AU2021103268A4 AU2021103268A4 AU2021103268A AU2021103268A AU2021103268A4 AU 2021103268 A4 AU2021103268 A4 AU 2021103268A4 AU 2021103268 A AU2021103268 A AU 2021103268A AU 2021103268 A AU2021103268 A AU 2021103268A AU 2021103268 A4 AU2021103268 A4 AU 2021103268A4
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- Prior art keywords
- component
- polyurethane composition
- component polyurethane
- crosslinking agent
- polyol
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- 239000000203 mixture Substances 0.000 title claims abstract description 33
- 239000004814 polyurethane Substances 0.000 title claims abstract description 32
- 229920002635 polyurethane Polymers 0.000 title claims abstract description 32
- 238000002360 preparation method Methods 0.000 title claims description 13
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 28
- 229920005862 polyol Polymers 0.000 claims abstract description 23
- 150000003077 polyols Chemical class 0.000 claims abstract description 22
- 239000003054 catalyst Substances 0.000 claims abstract description 16
- 239000004014 plasticizer Substances 0.000 claims abstract description 14
- 239000004721 Polyphenylene oxide Substances 0.000 claims abstract description 13
- 229920000570 polyether Polymers 0.000 claims abstract description 13
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000004970 Chain extender Substances 0.000 claims abstract description 7
- 230000000694 effects Effects 0.000 claims abstract description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 11
- -1 polyoxypropylene Polymers 0.000 claims description 11
- 239000000741 silica gel Substances 0.000 claims description 11
- 229910002027 silica gel Inorganic materials 0.000 claims description 11
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 claims description 10
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 9
- NSOXQYCFHDMMGV-UHFFFAOYSA-N Tetrakis(2-hydroxypropyl)ethylenediamine Chemical compound CC(O)CN(CC(C)O)CCN(CC(C)O)CC(C)O NSOXQYCFHDMMGV-UHFFFAOYSA-N 0.000 claims description 9
- 229910052782 aluminium Inorganic materials 0.000 claims description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 8
- 239000011888 foil Substances 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 8
- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 150000001412 amines Chemical group 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 150000003839 salts Chemical class 0.000 claims description 4
- KESQFSZFUCZCEI-UHFFFAOYSA-N 2-(5-nitropyridin-2-yl)oxyethanol Chemical compound OCCOC1=CC=C([N+]([O-])=O)C=N1 KESQFSZFUCZCEI-UHFFFAOYSA-N 0.000 claims description 3
- QZCLKYGREBVARF-UHFFFAOYSA-N Acetyl tributyl citrate Chemical compound CCCCOC(=O)CC(C(=O)OCCCC)(OC(C)=O)CC(=O)OCCCC QZCLKYGREBVARF-UHFFFAOYSA-N 0.000 claims description 3
- DOOTYTYQINUNNV-UHFFFAOYSA-N Triethyl citrate Chemical compound CCOC(=O)CC(O)(C(=O)OCC)CC(=O)OCC DOOTYTYQINUNNV-UHFFFAOYSA-N 0.000 claims description 3
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 claims description 3
- MIMDHDXOBDPUQW-UHFFFAOYSA-N dioctyl decanedioate Chemical compound CCCCCCCCOC(=O)CCCCCCCCC(=O)OCCCCCCCC MIMDHDXOBDPUQW-UHFFFAOYSA-N 0.000 claims description 3
- SZXQTJUDPRGNJN-UHFFFAOYSA-N dipropylene glycol Chemical compound OCCCOCCCO SZXQTJUDPRGNJN-UHFFFAOYSA-N 0.000 claims description 3
- 238000004806 packaging method and process Methods 0.000 claims description 3
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 claims description 3
- 229920001748 polybutylene Polymers 0.000 claims description 3
- 229920001451 polypropylene glycol Polymers 0.000 claims description 3
- 229920000909 polytetrahydrofuran Polymers 0.000 claims description 3
- 239000001069 triethyl citrate Substances 0.000 claims description 3
- VMYFZRTXGLUXMZ-UHFFFAOYSA-N triethyl citrate Natural products CCOC(=O)C(O)(C(=O)OCC)C(=O)OCC VMYFZRTXGLUXMZ-UHFFFAOYSA-N 0.000 claims description 3
- 235000013769 triethyl citrate Nutrition 0.000 claims description 3
- HRELNAWNYHNHHO-UHFFFAOYSA-N bis(7-methyloctyl) benzene-1,2-dicarboxylate cyclohexane Chemical compound C1CCCCC1.C(CCCCCC(C)C)OC(C=1C(C(=O)OCCCCCCC(C)C)=CC=CC1)=O HRELNAWNYHNHHO-UHFFFAOYSA-N 0.000 claims description 2
- 238000001035 drying Methods 0.000 claims description 2
- 239000012467 final product Substances 0.000 claims description 2
- 239000002861 polymer material Substances 0.000 abstract description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 6
- OMVSWZDEEGIJJI-UHFFFAOYSA-N 2,2,4-Trimethyl-1,3-pentadienol diisobutyrate Chemical compound CC(C)C(=O)OC(C(C)C)C(C)(C)COC(=O)C(C)C OMVSWZDEEGIJJI-UHFFFAOYSA-N 0.000 description 5
- 230000000399 orthopedic effect Effects 0.000 description 5
- 208000003251 Pruritus Diseases 0.000 description 4
- 230000035699 permeability Effects 0.000 description 4
- 230000006870 function Effects 0.000 description 3
- 230000007803 itching Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000011505 plaster Substances 0.000 description 3
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 2
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 2
- 241000350481 Pterogyne nitens Species 0.000 description 2
- 206010061363 Skeletal injury Diseases 0.000 description 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
- 230000009172 bursting Effects 0.000 description 2
- 239000000499 gel Substances 0.000 description 2
- 230000035876 healing Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 208000024891 symptom Diseases 0.000 description 2
- 201000004624 Dermatitis Diseases 0.000 description 1
- 206010061218 Inflammation Diseases 0.000 description 1
- 206010040893 Skin necrosis Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- HORIEOQXBKUKGQ-UHFFFAOYSA-N bis(7-methyloctyl) cyclohexane-1,2-dicarboxylate Chemical compound CC(C)CCCCCCOC(=O)C1CCCCC1C(=O)OCCCCCCC(C)C HORIEOQXBKUKGQ-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 230000004054 inflammatory process Effects 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000002808 molecular sieve Substances 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 229920001228 polyisocyanate Polymers 0.000 description 1
- 239000005056 polyisocyanate Substances 0.000 description 1
- 229920006389 polyphenyl polymer Polymers 0.000 description 1
- 238000007142 ring opening reaction Methods 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
- A61L15/07—Stiffening bandages
- A61L15/12—Stiffening bandages containing macromolecular materials
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
The invention provides a two-component polyurethane composition, belonging to
the technical field of polymer materials. The two-component polyurethane composition
comprises component A and component B. According to the mass percentage, the
component A comprises 0-100% of high-activity polyether polyols, 0-100% of cross
linking agent, 0-40% of chain extender, 0-50% of plasticizer and 0-5% of catalyst.
According to the mass percentage, the component B comprises 0-100% of
diphenylmethane diisocyanate and derivatives thereof, and 0-50% of plasticizer. The
mass ratio of component A to component B is 1:0.1-1:3. The two-component
polyurethane composition provided by the invention has low heat release and
excellent mechanical properties.
Description
Two-component polyurethane composition and its preparation method, and application thereof
This invention relates to technical field of polymer materials, particularly relates to two-component polyurethane composition and its preparation method, and application thereof.
Fracture fixation splint is a commonly used auxiliary equipment in orthopedic treatment. At present, in clinical treatment, plaster and splint are used to treat bone injury patients. Traditional plaster and splint fixation method has poor air permeability and high hardness, which may cause itching, friction pain, dermatitis and other problems due to sultry heat during use. Moreover, its high hardness makes skin tightly squeezed, which causes skin necrosis, long-term inflammation and other problems, resulting in poor satisfaction of patients. In addition, the first symptom when fracture occurs is swollen on the area of fraction, this symptom gradually subsides during the healing process. High hardness gypsum board or splint has no adjustment function, it can only be replaced with new material, which not only wastes resources but increases the economic burden of patients.
In addition to the traditional plaster fixation method, in clinic, polymer splint is used to fix the wounded area for treatment. The bandage coated with waterborne one component polyurethane material is commonly used, which needs to be soaked in water, wrung out, molded and applied to the patient for setting. It is characterized by light weight, high hardness, non-elasticity, etc, however, it is inconvenient to use, and has poor air permeability, and it causes poor physical sensation, sultriness and itch to patience.
In view of this, one of the aims of the present invention is to solve the shortcomings in the above-mentioned background art, therefore, this invention provides two component polyurethane composition provided by the invention has low heat release and excellent mechanical properties.
In order to achieve the above purpose, this invention provides the technical solutions as below:
According to the mass percentage, the component A comprises 0-100% of high activity polyether polyols, 0-100% of cross-linking agent, 0-40% of chain extender, 0 % of plasticizer and 0-5% of catalyst.
According to the mass percentage, the component B comprises 0-100% of diphenylmethane diisocyanate and derivatives thereof, and 0-50% of plasticizer. The mass ratio of component A to component B is 1:0.1-1:3.
The mass ratio of component A to component B is 1:0.1-1:3.
Preferably, polyether polyol is a kind of polyoxypropylene polyol and polytetrahydrofuran polyol and polybutylene oxide polyol.
Preferably, the macromolecular crosslinking agent is polyether polyol with high functionality, which prefers to one of MN500, MN700 andMN1000.
Preferably, the micromolecule crosslinking agent is multifunctional micromolecule polyol, preferably at least one of tetrahydroxypropylethylenediamine, pentaerythritol, trimethylolpropane, glycerol and tetrahydroxypropylethylenediamine.
Preferably, the chain extender is small molecule diol, preferably at least one of diethylene glycol, ethylene glycol and dipropylene glycol.
Preferably, the catalyst is an amine catalyst or a metal salt catalyst.
Preferably, plasticizers in component A and component B include at least one of cyclohexane 1,2-diisononyl phthalate, triethyl citrate, dibutyl phthalate, dioctyl sebacate, acetyl tributyl citrate and 2,2,4- trimethyl -1,3- pentanediol diisobutyrate.
The other purpose of this invention is to provide the preparation method of the above two-component polyurethane composition, which comprises the following steps:
Preparation of component A
Adding measured component a into a disperser, stirring to obtain viscous liquid, drying and stirring it for later use.
Preparation of component B
Adding metered diphenylmethane diisocyanate and its derivatives and dried plasticizer into a dispersing machine, and stirring it to form viscous liquid for later use.
The preparation of two-component polyurethane composition
Packaging the prepared component A and component B in aluminum foil bags respectively for later use.
Pouring the component B into the aluminum foil bag of the component A, shaking and mixing it evenly, and squeezing it into the matching silica gel bag to get the final product;.
Preferably, the inner cavity of the silica gel bag is covered with an inner bag, so that the silica gel bag has anti-bursting function.
The third purpose of this invention is to provide the application of two-component polyurethane composition in orthopedic treatment.
Compared with the prior art, the invention has the following beneficial effects:
1. This invention provides two-component polyurethane composition that has low heat release and excellent mechanical properties.
2. The two-component polyurethane composition provided by the invention can be applied to auxiliary equipment that commonly used in orthopedic treatment, such as polymer splint. Because the two-component polyurethane composition has elasticity, soft silica gel surface that is skin-friendly, it can be set into cavities with various shapes according to needs, which can mitigate the problems of sweltering heat, itching and poor air permeability of patients, and has the advantages of elasticity, appropriate adjustment and tightness to increase the comfort of patients.
In order to make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative labor belong to the scope of protection of the present invention. Therefore, the following detailed description of embodiments of the present invention is not intended to limit the scope of the claimed invention, but only represents selected embodiments of the present invention.
Two-component polyurethane composition comprises component A and component B:
According to the mass percentage, the component A comprises 0-100% of high activity polyether polyols, 0-100% of cross-linking agent, 0-40% of chain extender, 0 % of plasticizer and 0-5% of catalyst.
According to the mass percentage, the component B comprises 0-100% of diphenylmethane diisocyanate and derivatives thereof, and 0-50% of plasticizer.
The mass ratio of component A to component B is 1:0.1-1:3.
Polyether polyol (polyether for short) is an organic polymer, which is prepared by ring-opening reaction of initiator (compound containing active hydrogen group) with ethylene oxide (EO), propylene oxide (PO), butylene oxide (BO), etc. in the presence of catalyst.
According to this invention, the polyether polyol is a kind of polyoxypropylene polyol, polytetrahydrofuran polyol and polybutylene oxide polyol.
In the present invention, the cross-linking agent includes at least one of macromolecular cross-linking agent and micromolecule cross-linking agent. Because the micromolecule cross-linking agent makes the product hard and brittle, and the product prepared by macromolecular cross-linking agent has certain toughness. The embodiments described in the present invention show that macromolecular cross-linking agent and micromolecule cross-linking agent are added simultaneously.
In the present invention, the macromolecular crosslinking agent is a polyether polyol with high functionality, preferably one of MN500, MN700 and MN1000, which can be selected by a person skilled in the art according to actual needs.
In the present invention, the small molecule crosslinking agent is a multifunctional small molecule polyol, preferably at least one of tetrahydroxypropylethylenediamine, pentaerythritol, trimethylolpropane, glycerol and tetrahydroxypropylethylenediamine, which can be selected by a person skilled in the art according to actual needs.
In the present invention, the chain extender is a small molecule diol, preferably at least one of diethylene glycol, ethylene glycol and dipropylene glycol, which can be selected by a person skilled in the art according to actual needs.
Preferably, the catalyst is an amine catalyst or a metal salt catalyst, which can be selected by a person skilled in the art according to actual needs. In the present invention, plasticizers in component A and component B include at least one of diisononyl cyclohexane 1,2-dicarboxylate, triethyl citrate, dibutyl phthalate, dioctyl sebacate, acetyl tributyl citrate and 2,2,4- trimethyl -1,3- pentanediol diisobutyrate.
The invention provides a preparation method of the two-component polyurethane composition, which comprises the following steps:
Respectively adding metered component A into a high-speed disperser, stirring at high speed for 0.5-6 hours to form viscous liquid with viscosity of 200 ~
OOmPa-s/25°C, adding 2-30% by mass of molecular sieve, stirring it at low speed for 72 hours for later use, or dehydrating at high temperature for later use.
Preparation of two-component polyurethane composition
Packaging the prepared component A and component B in aluminum foil bags respectively for later use. Pouring the component B into the aluminum foil bag of the component A, shaking and mixing it evenly for 1 minute, then squeezing it into the matching silica gel bag, and curing it for about 10 minutes to obtain two-component polyurethane composition.
Preferably, the inner cavity of the silica gel bag is covered with an inner bag for anti bursting function,it can prevent the inner liquid from overflowing due to bursting or breakage when the A\B glue is poured.
The invention also provides the application of the two-component polyurethane composition in orthopedic treatment, for example, using the two-component polyurethane composition to prepare auxiliary equipment in orthopedic treatment, and the specific example is: preparing the fracture fixing plate described in the background art, and opening holes on its surface. The two-component polyurethane composition has the advantages of elasticity, soft silica gel surface that is skin-friendliness, and can be set into cavities with various shapes as required, which can mitigate the problems of sweltering heat, itching and poor air permeability of patients, and it has the advantages of elasticity, proper adjustment and tightness to increase the comfort of patients. More importantly, doctors can observe the condition of bone injury through hollow eyes, and can also check the healing of the affected area through X-ray, CT and other instruments to provide convenience for doctors' treatment plans.
The present invention will be further explained in detail with specific embodiments.
The brand names are introduced as follows, and the chemical components in the invention are exemplified by the following brands
330N Multifunctional soft foam polyether
DV125 Multifunctional macromolecular crosslinking agent
MN500 Multifunctional macromolecular crosslinking agent
MN700 Multifunctional macromolecular crosslinking agent
MN1000 Multifunctional macromolecular crosslinking agent
EDTP Multifunctional micromolecular crosslinking agent
EG Multifunctional micromolecular crosslinking agent
TMP Multifunctional micromolecular crosslinking agent
TIPA Multifunctional micromolecular crosslinking agent
DEG Chain extender
TXIB Plasticizer Polymethylene polyphenyl polyisocyanate PAPI (crude MDI)
Liquefied MDI Diphenyl methane diisocyanate derivatives
Amine catalyst A33
4110 Metal salt catalyst
Embodiment 1
Composition Name Mass percentage 330N 30% DV125 15%
A component EDTP 20% DPG 5%
TXIB 30% Liquefied MDI 30% B component PAPI 30% TXIB 40%
Package the A and B components in Example 1 in aluminum foil bags according to the mass ratio of 1:1.2, and place them in a dry and cool environment for later use.
Method: for using, pouring the B component into the aluminum foil bag of the A component, shaking and mixing it evenly for one minute, then squeezing it into the matching silica gel bag, and curing it in about 10 minutes.
The main technical indicators are as follows:
Number Item Unit Index
A component:
680 1 Appearance mPa-s/25°C B component
260
2 Density g/cm 3 1.12
3 Hardness Shore Type D 75
4 Gel time min 2
5 Curing time min 10
Peak 6 0C 55 temperature
Embodiment 2-7 described as below
Embodiment Embodiment Embodiment Embodiment Embodiment Embodiment Composition Name 2 3 4 5 6 7
330N 20% 40% 60% 80% 30% 40%
DV125 25% 15% 15%
MN500 10%
MN700 10%
MN1000 5%
EDTP 20% 15%
Component EG 10% 4.98%
A TMP 20%
TIPA 15%
DEG 4.98% 4.98% 4.98% 4.98% 4.98%
A33 0.02% 0.02% 0.02% 0.02%
4110 0.02% 0.02%
TXIB 30% 30% 15% 10% 30% 25%
Component PAPI 25% 25% 30% 30% 30% 30% B TXIB 50% 50% 40% 40% 40% 40%
Liquefied 25% 25% 30% 30% 30% 30% MDI
Mass Ratio 1:1.68 1:1.11 1:1.24 1:0.58 1:1.69 1:1.19
Item Unit Formula 2 Formula 3 Formula 4 Formula 5 Formula 6 Formula 7
A:680 A:750 A:800 A:760 A:780 A:770 mPa-s/25 Appearance C B:230 B:230 B:260 B:260 B:230 B:260
Density g/cm3 1.18 1.18 1.12 1.16 1.16 1.16
Shore Hardness 70 68 75 72 74 72 Type D
Gel time min 2.5 2.8 2 2.5 2.5 2.5
Curing time min 13 13 11 13 13 15
Peak aC 55 55 57 60 58 52 temperature
Claims (10)
1. Two-component polyurethane composition is characterized in comprising component A and component B:
According to the mass percentage, the component A comprises 0-100% of high activity polyether polyols, 0-100% of cross-linking agent, 0-40% of chain extender, 0 % of plasticizer and 0-5% of catalyst.
According to the mass percentage, the component B comprises 0-100% of diphenylmethane diisocyanate and derivatives thereof, and 0-50% of plasticizer. The mass ratio of component A to component B is 1:0.1-1:3.
The mass ratio of component A to component B is 1:0.1-1:3.
2. Two-component polyurethane composition, according to claim 1, is characterized in that the polyether polyol is a kind of polyoxypropylene polyol and polytetrahydrofuran polyol and polybutylene oxide polyol.
3. Two-component polyurethane composition, according to claim 1, is characterized in that the crosslinking agent comprises at least one of macromolecular crosslinking agent and micromolecule crosslinking agent.
4. Two-component polyurethane composition, according to claim 3, is characterized in that the macromolecular crosslinking agent is polyether polyol with high functionality, preferably, it is one of MN500, MN700 and MN1000.
5. Two-component polyurethane composition, according to claim 3, is characterized in that the micromolecule crosslinking agent is multifunctional micromolecule polyol, preferably at least one of tetrahydroxypropylethylenediamine, pentaerythritol, trimethylolpropane, glyceroland tetrahydroxypropylethylenediamine.
6. Two-component polyurethane composition, according to claim 1, is characterized in that the chain extender is small molecule diol, preferably at least one of diethylene glycol, ethylene glycol and dipropylene glycol.
7. Two-component polyurethane composition, according to claim 1, is characterized in that the catalyst is an amine catalyst or a metal salt catalyst.
8. Two-component polyurethane composition, according to claim 1, is characterized in that plasticizers in component A and component B include at least one of cyclohexane 1,2-diisononyl phthalate, triethyl citrate, dibutyl phthalate, dioctyl sebacate, acetyl tributyl citrate and 2,2,4- trimethyl -1,3- pentanediol diisobutyrate.
9. The preparation method of two-component polyurethane composition, according to any claim from claim 1 to 8 is characterzied in comprising the following steps:
Preparation of component A
Adding measured component a into a disperser, stirring to obtain viscous liquid, drying and stirring it for later use.
Preparation of component B
Adding metered diphenylmethane diisocyanate and its derivatives and dried plasticizer into a dispersing machine, and stirring it to form viscous liquid for later use.
The preparation of two-component polyurethane composition
Packaging the prepared component A and component B in aluminum foil bags respectively for later use.
Pouring the component B into the aluminum foil bag of the component A, shaking and mixing it evenly, and squeezing it into the matching silica gel bag to get the final product;.
Preferably, the inner cavity of the silica gel bag is covered with an inner bag, so that the silica gel bag has anti-bursting function.
10. Any description from claim 1 to claim 8 regarding two-component polyurethane composition that can be applied in orthopaedic treatment
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2021103268A AU2021103268A4 (en) | 2021-06-10 | 2021-06-10 | Two-component polyurethane composition and its preparation method, and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2021103268A AU2021103268A4 (en) | 2021-06-10 | 2021-06-10 | Two-component polyurethane composition and its preparation method, and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AU2021103268A4 true AU2021103268A4 (en) | 2021-07-29 |
Family
ID=76972114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2021103268A Ceased AU2021103268A4 (en) | 2021-06-10 | 2021-06-10 | Two-component polyurethane composition and its preparation method, and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| AU (1) | AU2021103268A4 (en) |
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2021
- 2021-06-10 AU AU2021103268A patent/AU2021103268A4/en not_active Ceased
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