CN108504083A - A kind of thermoplastic polyurethane elastomer and preparation method thereof - Google Patents
A kind of thermoplastic polyurethane elastomer and preparation method thereof Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
- C08L75/06—Polyurethanes from polyesters
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3009—Sulfides
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
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Abstract
The invention discloses a kind of thermoplastic polyurethane elastomer and preparation method thereof, thermoplastic polyurethane elastomer includes the component of following parts by weight:22 45 parts of diisocyanate；45 63 parts of polyester polyol；5 12 parts of chain extender；25 parts of anti-aging agent group；28 parts of EPDM20；10 17 parts of elastomeric modification group；24 parts of white carbon；16 parts of vinyl silicone oil；35 parts of crosslinking agent group；Wherein, the number-average molecular weight of the EPDM is 15 20 ten thousand, and the Mooney viscosity ML+4 at 125 DEG C is 48.Preparation method is：1 2h is mixed in each component；Premixing mixture, grey antimony powder end and the mixture of vulcanization nickel by powder, anti-crack fiber group are uniformly mixed, and double screw extruder is added and squeezes out, be granulated, obtains thermoplastic elastomer (TPE).The present invention has excellent wear-resisting property, tensile strength and resistance to tearing, can adapt to different operating environment requirements, improves product for the being effective against property for scratching or scratching, extend the service life of product.
Description
Technical field
The present invention relates to polyurethane production technical fields, more specifically, it relates to a kind of thermoplastic polyurethane elastomer
And preparation method thereof.
Background technology
TPU polyurethane, also known as thermoplastic polyurethane elastomer are the prodigious elastomer polymers of a kind of application range,
Due to its own have many advantages, such as it is good elastic, flexible, wear-resisting, alkaline-resisting and corrosion-resistant, gas transmission oil transportation hose manufacture neck
Domain is applied more and more, replaces traditional plastic flexible pipe gradually.
A kind of thermoplastic polyurethane elastomer is disclosed in the Chinese patent that application notification number is CN103059554A, is prepared
When 1,4- cyclohexane diisocyanates, polyethylene glycol adipate, 1,4- butanediols, lubricant, water-proofing agent, inorganic nano are filled out
The raw materials Hybrid Heatings such as material are simultaneously pelletized, obtain it is a kind of be effectively increased Heat Resistance of Polyurethane Elastomers and anti-ageing performance it is new at
Product.
But as On The Oil And Gas Transportation hose, what is contacted at work not only has the environment of high temperature, can also be due to need of work
It often folds, carry, thus in actual use often due to dragging etc., by ground or other sharp objects
It scratches and even scratches, hose is once scratched or scratched, and the phenomenon that finally causing to leak, or even hose can be made directly to report
It is useless, it is totally unfavorable to producing.
Invention content
In view of the deficienciess of the prior art, the purpose of the present invention one is to provide a kind of thermoplastic polyurethane elastomer,
Achieve the effect that effective enhancing thermoplastic polyurethane elastomer product for the repellence that scratches or scratch.
To achieve the above object one, the present invention provides following technical solutions：A kind of thermoplastic polyurethane elastomer, it is special
Sign is, includes the component of following parts by weight：
Wherein, the number-average molecular weight of the EPDM is 15-20 ten thousand, and the Mooney viscosity ML+4 at 125 DEG C is 48.
Through the above technical solutions, diisocyanate and polyester polyol are polymerize or are condensed under the action of chain extender
After reaction, you can thermoplastic polyurethane elastomer is generated, and during the reaction, anti-aging agent group is added in due course, can be finished product
Effective anti-oxidant, heat resistanceheat resistant, anti-light is provided, slows down the process of end properties decline, prolongs the service life.
And EPDM is added, good modified effect can be provided for finished product, assign the excellent wearability of finished product, tensile strength
And tearing-resistant performance, hose made of finished product is improved for the repellence that scratches or scratch.
Elastomeric modification group is for being modified the elasticity of finished product so that and hose made of finished product keeps good elasticity,
Deformability suitable for the application of hose, while when also improving finished product stress, and then improve tensile strength and tear-resistant
Performance.
The addition of white carbon assigns the excellent lear energy of finished product and heat-resisting ageing resistance, can play as finished product
The effect of reinforcement, and disclosure satisfy that the transparency needs of transparent or semitransparent hose；White carbon has superpower adhesion strength simultaneously,
It can be sufficiently mixed and contact with EPDM, the two performance is overlapped mutually, and greatly enhances the tear resistance of finished product, reduces finished product
The products such as manufactured hose are for the repellence that scratches or scratch.
And added with vinyl silicone oil as another reinforcement component, it, can be in all directions after fully being mixed with each component
To weather-proof, ageing-resistant, uvioresistant and toughness enhancing in terms of make good modification, further promote end properties.
And the crosslinking agent group being arranged can allow the even closer of the more uniform connection that above-mentioned multigroup component disperses each other,
Globality is improved, but also the matching that the performance between each component can be adapted.
Further preferably：A kind of thermoplastic polyurethane elastomer includes the component of following parts by weight,
Further preferably：The diisocyanate is toluene di-isocyanate(TDI), isophorone diisocyanate, diphenyl
In methane diisocyanate, dicyclohexyl methyl hydride diisocyanate, hexamethylene diisocyanate, lysine diisocyanate
It is at least one.
Further preferably：The polyester polyol by ethylene glycol, propylene glycol, diglycol, trimethylolpropane,
In one kind and phthalic acid or phthalate anhydride or its ester, adipic acid, halogenated phthalic acid in pentaerythrite, 1,4-butanediol
A kind of condensation or transesterification be prepared.
Further preferably：The anti-aging agent group includes thermo oxidative aging anti-aging agent, antifatigue anti-aging agent and uvioresistant
Radiate at least one of anti-aging agent.
Through the above technical solutions, due to thermoplastic polyurethane elastomer prepare hose in use, usually can
It in high temperature, the adverse circumstances such as be exposed to the sun, and needs often to pull, fold and fold, therefore for heat resistanceheat resistant oxygen, antifatigue and anti-
Ultraviolet light has corresponding demand, therefore can change the formula or composition of anti-aging agent group according to environmental requirement.
Further preferably：The elastomeric modification group includes polyolefin plastomers, metallocene class polypropylene, non-hydrogenated petroleum tree
At least one of fat.
Through the above technical solutions, polyolefin plastomers have good thermal stability, outstanding cryogenic property and flexible
Property so that hose obtained has some improvement in terms of sun-proof and cold-resistant, simultaneously for flexible modification, but also soft
Pipe increases in fatigue resistance；Metallocene class polypropylene has good toughness, not easy to break, uniformity is good, Neng Goujin
One step is modified finished product；Enhance its tearing-resistant performance；Hydrogenated resin has stable chemical constitution, and molecular link tends to be full
With, after finished product chemical property stablize, it is non-aging, extend product service life.
Meanwhile elastomeric modification group can not only enhance the elasticity, flexibility and resistance to tearing of finished product, due to above-mentioned three kinds of groups
Divide and be provided with certain viscosity, when being sufficiently mixed uniform, moreover it is possible to play the effect of adhesive so that bonded between each component
It is even closer, reach the tensile strength and resistance to tearing of hose on the whole made of enhancing finished product.
Further preferably：The crosslinking agent group includes hexahydrophthalic anhydride, pyromellitic dianhydride, anhydride maleique
In it is one or more.
Through the above technical solutions, setting crosslinking agent enables to each component that can be cross-linked to each other in reaction, reinforce viscous
Tie power；Above-mentioned crosslinking agent has after cooling when thermoplastic polyurethane elastomer produces and accelerates molding effect, convenient for life simultaneously
Production；Further above-mentioned crosslinking agent forms certain space network when can also each component be cross-linked to each other, to product
It is modified, improves tensile strength and resistance to tearing, also make product that there is good resistance to ag(e)ing.
Further preferably：A kind of thermoplastic polyurethane elastomer further includes that parts by weight are 0.2-0.5 parts
Anti-crack fiber group, the anti-crack fiber group include at least one of carbon fiber and contraposition aramid fiber.
Through the above technical solutions, regardless of what sharp object hose prepared by finished product encounters in use,
When causing to scratch or scratch to hose outer surface, the active force of tearing can be generated to hose, when added with reinforcing fiber group
When, after the active force of tearing acts on hose, active force can be cut down into part with the fracture of reinforcing fiber, so as to
It is effective to mitigate extent of the destruction of the active force to hose, hose is greatly improved for the resistivity that scratches or scratch.
Further preferably：A kind of thermoplastic polyurethane elastomer further includes that parts by weight are 0.2-0.4 parts
The mixture at grey antimony powder end and vulcanization nickel by powder.
Through the above technical solutions, since hose is in gasoline feed or oil and other items, the work of high temperature may be placed oneself in the midst of
Make in environment or in the working environment that high temperature and low temperature interlock, therefore expanding with heat and contract with cold for object generation is made by temperature stress
Effect can make hose premature aging after long term, significantly reduce the service life used, thus be added to grey antimony powder and
After vulcanizing nickel powder, volume expansion when grey antimony and nickel sulfide can be reduced when heated, be cooled uniformly mixes the two to each component
In, in high and low temperature alternative, the internal stress opposite with expanding with heat and contract with cold can be generated, generates the effect of partial offset, and react
Hose on the whole, that is, achieve the effect that reduce hose whole deformation, reduce temperature fatigue stress caused by hose.
The purpose of the present invention two is to provide a kind of method preparing above-mentioned thermoplastic polyurethane elastomer, in realization
Purpose two is stated, the present invention provides following technical solutions：A method of thermoplastic polyurethane elastomer is prepared, including is walked as follows
Suddenly：
Each component is mixed by formula ratio using one-step method, is stirred 1-2h, obtain uniformly mixed premixing mixture by S1；
The premixing mixture, grey antimony powder end and the mixture of vulcanization nickel by powder, anti-crack fiber group are uniformly mixed, and add by S2
Enter double screw extruder to squeeze out, be granulated, obtains thermoplastic elastomer (TPE), 90-150 revs/min of screw speed, plasticization temperature 150-
180℃。
Through the above technical solutions, screw speed is too fast to cause undesirable shadow to thermoplastic elastomer (TPE) performance slowly excessively
It rings, the too low mixture plasticizing dispersion of rotating speed is uneven, and the too high strength of materials of rotating speed can decline；Meanwhile plasticization temperature is too high is not easy
In pelletizing, the too low then mixture plastifying fusion of temperature is uneven, and when taking suitable temperature and rotating speed, it is good just to produce quality
Good finished thermoplastic polyurethane elastomer.
In conclusion the invention has the advantages that：With excellent wear-resisting property, tensile strength and tear-resistant
Property, while improving elasticity and intensity, good flexibility is also maintained, different operating environment requirements are can adapt to, is carried
High product extends the service life of product for the being effective against property for scratching or scratching.
Specific implementation mode
With reference to embodiment, the present invention will be described in detail.
Embodiment 1-8：A kind of thermoplastic polyurethane elastomer, including component and its corresponding weight it is as shown in table 1,
Middle diisocyanate is methyl diphenylene diisocyanate；Polyester polyol is that diglycol and adipic acid condensation are made；
Chain extender uses the compound of diethylene glycol (DEG) and 1,4-butanediol；Anti-aging agent group is by thermo oxidative aging anti-aging agent, antifatigue anti-aging agent
With the compound of three kinds of compositions of ultra-violet radiation resisting anti-aging agent；Elastomeric modification group by polyolefin plastomers, metallocene class polypropylene,
The compound of three kinds of compositions of hydrogenated petroleum resin；Crosslinking agent group is by hexahydrophthalic anhydride, pyromellitic dianhydride, butene dioic acid
Three kinds of composition compounds of acid anhydride；Anti-crack fiber group includes carbon fiber and contraposition aramid fiber.
Wherein, the number-average molecular weight of EPDM is 15-20 ten thousand, and the Mooney viscosity ML+4 at 125 DEG C is 48.
1 embodiment 1-8 each components of table and its corresponding weight content (kg)
Embodiment 9：A kind of thermoplastic polyurethane elastomer, difference lies in do not contain anti-crack fiber group with embodiment 1.
Embodiment 10：A kind of thermoplastic polyurethane elastomer, with embodiment 1 difference lies in, without containing grey antimony powder end and
Vulcanize the mixture of nickel by powder.
Embodiment 11：A kind of thermoplastic polyurethane elastomer, with embodiment 1 difference lies in, without containing grey antimony powder end and
Vulcanize the mixture of nickel by powder, contain anti-crack fiber group.
Embodiment 12：A kind of thermoplastic polyurethane elastomer, difference lies in anti-aging agent group contains only anti-with embodiment 1
Thermo-oxidative ageing anti-aging agent.
Embodiment 13：A kind of thermoplastic polyurethane elastomer, difference lies in anti-aging agent group contains only anti-with embodiment 1
Tired anti-aging agent.
Embodiment 14：A kind of thermoplastic polyurethane elastomer, difference lies in anti-aging agent group contains only anti-with embodiment 1
Ultraviolet radiation anti-aging agent.
Embodiment 15：A kind of thermoplastic polyurethane elastomer, difference lies in elastomeric modification group contains only with embodiment 1
Polyolefin plastomers.
Embodiment 16：A kind of thermoplastic polyurethane elastomer, difference lies in elastomeric modification group contains only with embodiment 1
Metallocene class polypropylene.
Embodiment 17：A kind of thermoplastic polyurethane elastomer, difference lies in elastomeric modification group contains only with embodiment 1
Hydrogenated petroleum resin.
Embodiment 18：A kind of thermoplastic polyurethane elastomer, difference lies in crosslinking agent group includes hexahydro with embodiment 1
Phthalic anhydride, pyromellitic dianhydride.
Embodiment 19：A kind of thermoplastic polyurethane elastomer, difference lies in anti-crack fiber group contains only with embodiment 1
Carbon fiber.
Embodiment 20：A kind of production method of thermoplastic polyurethane elastomer, includes the following steps：
Each component is mixed by formula ratio, stirs 1-2h, obtain uniformly mixed premixing mixture by S1；
The premixing mixture, grey antimony powder end and the mixture of vulcanization nickel by powder, anti-crack fiber group are uniformly mixed, and add by S2
Enter double screw extruder to squeeze out, be granulated, obtains thermoplastic elastomer (TPE), 90-150 revs/min of screw speed, plasticization temperature 150-
180℃。
In above-described embodiment, diisocyanate is toluene di-isocyanate(TDI), isophorone diisocyanate, diphenyl methane
In diisocyanate, dicyclohexyl methyl hydride diisocyanate, hexamethylene diisocyanate, lysine diisocyanate in addition to
One kind of methyl diphenylene diisocyanate or therein arbitrary a variety of, will not enumerate in embodiment.
Polyester polyol is by ethylene glycol, propylene glycol, diglycol, trimethylolpropane, pentaerythrite, Isosorbide-5-Nitrae-fourth two
One kind in a kind of and phthalic acid, phthalate anhydride or its ester, adipic acid, halogenated phthalic acid in alcohol, in addition to a contracting two
Ethylene glycol and adipic acid condensation are prepared except being made by condensation or transesterification, will not enumerate in embodiment.
Comparative example 1-14：A kind of thermoplastic polyurethane elastomer, with embodiment 1 difference lies in comprising component and
Its corresponding weight is as shown in table 2.
Wherein diisocyanate is methyl diphenylene diisocyanate；Polyester polyol is diglycol and adipic acid
Condensation is made；Chain extender uses the compound of diethylene glycol (DEG) and 1,4-butanediol；Anti-aging agent group is by thermo oxidative aging anti-aging agent, anti-tired
The compound of three kinds of compositions of labor anti-aging agent and ultra-violet radiation resisting anti-aging agent；Elastomeric modification group is by polyolefin plastomers, metallocene
The compound of three kinds of class polypropylene, hydrogenated petroleum resin compositions；Crosslinking agent group is by hexahydrophthalic anhydride, Pyromellitic Acid
Three kinds of acid anhydride, anhydride maleique composition compounds；Anti-crack fiber group includes carbon fiber and contraposition aramid fiber.The number of EPDM is divided equally
Son amount is 15-20 ten thousand, and the Mooney viscosity ML+4 at 125 DEG C is 48.
Each component in 2 comparative example 1-14 of table and its corresponding weight (kg)
Table 2- continues song component and its corresponding weight (kg) in comparative example 1-14
Comparative example 15：A kind of thermoplastic polyurethane elastomer, difference lies in screw speed is 60 in S2 with embodiment 22
Rev/min, plasticization temperature is 160 DEG C.
Comparative example 16：A kind of thermoplastic polyurethane elastomer, difference lies in screw speed is in S2 with embodiment 22
210 revs/min, plasticization temperature is 160 DEG C.
Comparative example 17：A kind of thermoplastic polyurethane elastomer, difference lies in screw speed is in S2 with embodiment 22
120 revs/min, plasticization temperature is 110 DEG C.
Comparative example 18：A kind of thermoplastic polyurethane elastomer, difference lies in screw speed is in S2 with embodiment 22
120 revs/min, plasticization temperature is 220 DEG C.
Characterization experiment
Test 1 tearing strength test
Subjects：According to the formula or the product that produces of method in embodiment 1-20 and comparative example 1-18, amount to 38 groups.
Test method：According to test method specified in ASTM D624 standards, square is taken to tear, in pull test
On machine 38 groups of subjects are carried out with the test of tearing strength.
Test result：The experimental result that the tearing strength test of 38 groups of subjects obtains is recorded into table 3.
The tearing strength table (Kn/m) of 3 38 groups of subjects of table
Test the test of 2 tensile strengths
Subjects：According to the formula or the product that produces of method in embodiment 1-20 and comparative example 1-18, amount to 38 groups.
Test method：With reference to ASTMD-412 standards, tension test is carried out using 38 groups of samples of cupping machine pair.
Test result：The experimental result that the tensile strength of 38 groups of subjects is tested is recorded into table 4.
The tensile strength table (Mpa) of 4 38 groups of subjects of table
Experiment 3 thermally expands tests
Subjects：According to the formula or the product that produces of method in embodiment 1-20 and comparative example 1-18, amount to 38 groups.
Test method：Above-mentioned 38 groups of subjects are taken, using WTD-2 type thermal dilatometers, shows poor method according to contact, takes
Standard quartz glass bar and quartz glass tube and subjects determine at middle temperature.
Test result：The elongation that 38 groups of subjects are tested is recorded into table 5.
The elongation scale (mm) of 5 38 groups of subjects of table
| Group | Elongation | Group | Elongation | Group | Elongation | Group | Elongation |
| Embodiment 1 | 0.5 | Embodiment 11 | 1.2 | Comparative example 1 | 0.5 | Comparative example 11 | 0.7 |
| Embodiment 2 | 0.3 | Embodiment 12 | 0.5 | Comparative example 2 | 0.6 | Comparative example 12 | 1.3 |
| Embodiment 3 | 0.3 | Embodiment 13 | 0.4 | Comparative example 3 | 0.5 | Comparative example 13 | 1.2 |
| Embodiment 4 | 0.2 | Embodiment 14 | 0.5 | Comparative example 4 | 0.6 | Comparative example 14 | 0.6 |
| Embodiment 5 | 0.2 | Embodiment 15 | 0.4 | Comparative example 5 | 0.6 | Comparative example 15 | 0.5 |
| Embodiment 6 | 0.3 | Embodiment 16 | 0.5 | Comparative example 6 | 0.6 | Comparative example 16 | 0.7 |
| Embodiment 7 | 0.3 | Embodiment 17 | 0.6 | Comparative example 7 | 1.0 | Comparative example 17 | 0.5 |
| Embodiment 8 | 0.5 | Embodiment 18 | 0.6 | Comparative example 8 | 0.7 | Comparative example 18 | 0.6 |
| Embodiment 9 | 1.1 | Embodiment 19 | 0.4 | Comparative example 9 | 0.7 | ||
| Embodiment 10 | 0.6 | Embodiment 20 | 0.5 | Comparative example 10 | 0.5 |
The above is only a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
Those of ordinary skill for, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of thermoplastic polyurethane elastomer, which is characterized in that include the component of following parts by weight：
22-45 parts of diisocyanate；
45-63 parts of polyester polyol；
5-12 parts of chain extender；
2-5 parts of anti-aging agent group；
EPDM20-28 parts；
10-17 parts of elastomeric modification group；
2-4 parts of white carbon；
1-6 parts of vinyl silicone oil；
3-5 parts of crosslinking agent group；
Wherein, the number-average molecular weight of the EPDM is 15-20 ten thousand, and the Mooney viscosity ML+4 at 125 DEG C is 48.
2. a kind of thermoplastic polyurethane elastomer according to claim 1, which is characterized in that including following parts by weight
Component：
35-40 parts of diisocyanate；
50-53 parts of polyester polyol；
8-10 parts of chain extender；
2-5 parts of anti-aging agent group；
EPDM23-25 parts；
12-15 parts of elastomeric modification group；
2-4 parts of white carbon；
2-5 parts of vinyl silicone oil；
3-5 parts of crosslinking agent group.
3. a kind of thermoplastic polyurethane elastomer according to claim 1, which is characterized in that the diisocyanate is first
Phenylene diisocyanate, isophorone diisocyanate, methyl diphenylene diisocyanate, dicyclohexyl methyl hydride diisocyanate,
At least one of hexamethylene diisocyanate, lysine diisocyanate.
4. a kind of thermoplastic polyurethane elastomer according to claim 1, which is characterized in that the polyester polyol is by second
One kind and phthalic acid in glycol, propylene glycol, diglycol, trimethylolpropane, pentaerythrite, 1,4-butanediol or
A kind of condensation or transesterification in phthalate anhydride or its ester, adipic acid, halogenated phthalic acid are prepared.
5. a kind of thermoplastic polyurethane elastomer according to claim 1, which is characterized in that the anti-aging agent group includes anti-
At least one of thermo-oxidative ageing anti-aging agent, antifatigue anti-aging agent and ultra-violet radiation resisting anti-aging agent.
6. a kind of thermoplastic polyurethane elastomer according to claim 1, which is characterized in that the elastomeric modification group includes
At least one of polyolefin plastomers, metallocene class polypropylene, hydrogenated petroleum resin.
7. a kind of thermoplastic polyurethane elastomer according to claim 1, which is characterized in that the crosslinking agent group includes six
It is one or more in hydrogen phthalic anhydride, pyromellitic dianhydride, anhydride maleique.
8. a kind of thermoplastic polyurethane elastomer according to claim 1, which is characterized in that further include that parts by weight are
0.2-0.5 parts of anti-crack fiber group, the anti-crack fiber group include at least one of carbon fiber and contraposition aramid fiber.
9. a kind of thermoplastic polyurethane elastomer according to claim 1, which is characterized in that further include that parts by weight are
The mixture at 0.2-0.4 parts of grey antimony powder end and vulcanization nickel by powder.
10. a kind of method preparing thermoplastic polyurethane elastomer as described in claim 1, which is characterized in that including as follows
Step：
Each component is mixed by formula ratio, stirs 1-2h, obtain uniformly mixed premixing mixture by S1；
The premixing mixture, grey antimony powder end and the mixture of vulcanization nickel by powder, anti-crack fiber group are uniformly mixed, and add by S2
Enter double screw extruder to squeeze out, be granulated, obtains thermoplastic elastomer (TPE), 90-150 revs/min of screw speed, plasticization temperature 150-
180℃。
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| CN112247397A (en) * | 2020-11-02 | 2021-01-22 | 合肥邦诺科技有限公司 | Composite brazing filler metal for brazing aluminum nitride ceramic and metal and preparation method thereof |
| CN112646355A (en) * | 2021-01-14 | 2021-04-13 | 江苏威久科技发展有限公司 | High-strength wear-resistant thermoplastic polyurethane elastomer and preparation method thereof |
| CN117567860A (en) * | 2023-11-15 | 2024-02-20 | 中国科学院长春应用化学研究所 | Polyurethane composite material and preparation method thereof |
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