WO2019057001A1 - Mélange de tpu, son utilisation, et procédé de préparation de piste l'utilisant - Google Patents

Mélange de tpu, son utilisation, et procédé de préparation de piste l'utilisant Download PDF

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Publication number
WO2019057001A1
WO2019057001A1 PCT/CN2018/105919 CN2018105919W WO2019057001A1 WO 2019057001 A1 WO2019057001 A1 WO 2019057001A1 CN 2018105919 W CN2018105919 W CN 2018105919W WO 2019057001 A1 WO2019057001 A1 WO 2019057001A1
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WIPO (PCT)
Prior art keywords
tpu
thermoplastic polyurethane
blend
polyurethane elastomer
liquid
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PCT/CN2018/105919
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English (en)
Chinese (zh)
Inventor
栾福进
Original Assignee
科沃斯机器人股份有限公司
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Publication of WO2019057001A1 publication Critical patent/WO2019057001A1/fr

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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
    • C08K5/00—Use of organic ingredients
    • C08K5/16—Nitrogen-containing compounds
    • C08K5/34—Heterocyclic compounds having nitrogen in the ring
    • C08K5/3467—Heterocyclic compounds having nitrogen in the ring having more than two nitrogen atoms in the ring
    • C08K5/3472—Five-membered rings
    • C08K5/3475—Five-membered rings condensed with carbocyclic rings
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L1/00—Cleaning windows
    • A47L1/02—Power-driven machines or devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D55/00—Endless track vehicles
    • B62D55/08—Endless track units; Parts thereof
    • B62D55/18—Tracks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D55/00—Endless track vehicles
    • B62D55/08—Endless track units; Parts thereof
    • B62D55/18—Tracks
    • B62D55/24—Tracks of continuously flexible type, e.g. rubber belts
    • 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
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
    • C08J9/10—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
    • 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
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
    • C08J9/10—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
    • C08J9/102—Azo-compounds
    • C08J9/103—Azodicarbonamide
    • 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
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/05—Alcohols; Metal alcoholates
    • C08K5/053—Polyhydroxylic alcohols
    • 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
    • C08K5/00—Use of organic ingredients
    • C08K5/16—Nitrogen-containing compounds
    • C08K5/34—Heterocyclic compounds having nitrogen in the ring
    • C08K5/3412—Heterocyclic compounds having nitrogen in the ring having one nitrogen atom in the ring
    • C08K5/3432—Six-membered rings
    • C08K5/3435—Piperidines
    • 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
    • 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
    • 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
    • C08L75/08—Polyurethanes from polyethers
    • 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
    • C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
    • C08J2375/04—Polyurethanes

Definitions

  • the present application belongs to the field of polymer materials, and relates to a thermoplastic polyurethane elastomer (herein referred to as TPU) blend and use thereof, and particularly relates to a thermoplastic polyurethane elastomer (TPU) which is anti-yellowing, low hardness and wear resistance. Blends, TPU blend applications and track preparation methods.
  • TPU thermoplastic polyurethane elastomer
  • Some of the crawler robots on the market have a harder thermoplastic elastomer in the inner ring and a lower hardness thermoplastic elastomer in the outer ring. It is processed by two-color injection molding or insert molding.
  • Wear-resistant low-hardness thermoplastic elastomers generally use low-hardness TPU (Thermoplastic polyurethanes). However, as the hardness of the TPU decreases, the wear resistance of the TPU also decreases. At the same time, the yellowing of TPU is also a difficult problem to solve.
  • the method of solving TPU yellowing is generally solved by adding anti-UV aging agent, dyeing, etc., but adding solid additives in low hardness TPU will reduce the resistance of TPU. Grinding performance.
  • the injection molding process of TPU will also affect the mechanical properties and wear resistance of existing TPU products. If the moisture of the existing TPU is not dried, especially in the screw of the injection molding machine, the existing TPU will be decomposed, the molecular weight will become smaller, and the wear resistance of the existing TPU will be greatly improved. decline.
  • the purpose of the present application is to provide a TPU blend that is capable of preventing yellowing of itself and maintaining high wear resistance in order to overcome the deficiencies of the prior art.
  • the liquid functional additive not only has the function of preventing yellowing, but also acts as a plasticizer, which may cause the hardness of the TPU blend to decrease. Therefore, the hardness and wear resistance of the TPU blend can be further adjusted by a hardness modifier such as a chain extender, a crosslinking agent or a foaming agent as needed.
  • the resulting TPU blend has a Shore hardness of 45A-60A.
  • the technical solution adopted in the present application is: a TPU blend
  • the raw material formulation of the blend includes the following components in terms of weight percentage:
  • the liquid direct dye in the raw material formulation of the TPU blend is from 0.01% to 0.5% by weight.
  • chain extender or crosslinker in the raw material formulation of the TPU blend is from 0.05% to 1% by weight.
  • crosslinking agent is 0.5% by weight.
  • the TPU is a polyester thermoplastic elastomer having an abrasion capacity (test standard ISO 4649-A) of less than 40 mm 3 .
  • the TPU can be a mixture of one or more thermoplastic polyurethane elastomers.
  • the TPU may be a foamed material of a mixture of one or more thermoplastic polyurethane elastomers.
  • the TPU is a polyester or polyether TPU or a modified TPU.
  • the TPU has a Shore hardness of 45A-60A
  • the TPU blend raw material formulation may include the following components:
  • the TPU has a Shore hardness of 60A-90A
  • the raw material formulation of the TPU blend may include the following components:
  • raw material formulation of the various TPU blends may comprise, by weight percent, the following components:
  • the chain extender is an alcohol, ether or ester compound having two hydroxyl groups.
  • the chain extender of the present application is preferably a mixture of one or more selected from the group consisting of glycol compounds.
  • the chain extender of the present application may be, for example, 1,4-butanediol, ethylene glycol, glycerin, 1,6-hexanediol, 1,4-cyclohexanediol, neopentyl glycol, hydrogenated bisphenol.
  • A resorcinol dihydroxyethyl ether, dihydroxyethyl terephthalate, but is not limited thereto.
  • the crosslinking agent is preferably a peroxide such as, but not limited to, dicumyl peroxide.
  • the liquid anti-UV agent may be a liquid benzotriazole or a triazine anti-UV agent.
  • the liquid anti-UV agent can be 2-(2H-benzotriazol-2-yl)-6-dodecyl-4-methylphenol, 2-[4-[2-hydroxy-3-tride Alkoxypropyl]oxy]-2-hydroxyphenyl]-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine, but is not limited thereto.
  • the liquid anti-UV agent is 2-(2H-benzotriazol-2-yl)-6-dodecyl-4-methylphenol.
  • the liquid direct dye is a dye whose pH tends to be neutral, preferably a dye having a pH in the range of 7-8.
  • the liquid direct dye can be a liquid anionic direct dye, a liquid cationic direct dye such as, but not limited to, liquid direct blue.
  • the liquid heat stabilizer is a hindered amine heat stabilizer, preferably bis(1,2,2,6,6-pentamethylpiperidinol) sebacate.
  • the blowing agent in the TPU blend is a closed cell blowing agent such as azodicarbonamide (also known as "foaming agent AC"), Expancel microsphere blowing agent.
  • Another object of the present application is to provide the use of the TPU blends described herein in the preparation of tracks.
  • the application also provides a robot crawler preparation method, comprising:
  • the granulated material is used as an injection molding material, and an injection molding process is performed to obtain a robot crawler belt;
  • the raw material formulation of the blend comprises, by weight percent, the following components:
  • the robot may be a window cleaning robot.
  • the present application relates to a thermoplastic polyurethane elastomer blend which is resistant to yellowing, low hardness and wear resistance.
  • Its raw material formulation comprises the following components in weight percentage: TPU 94%-99.9%; liquid anti-UV agent 0.1% -0.5%; at least one selected from the group consisting of a liquid heat stabilizer and a hardness modifier, wherein the hardness modifier is selected from 0.01% to 1.5% of a chain extender, 0.01% to 1.5% of a crosslinking agent, and One or more of 0.05% to 3% of the blowing agent.
  • the present application employs liquid additives in TPU blends, including liquid anti-UV aging agents (ie, liquid anti-UV agents), liquid heat stabilizers, optional liquid direct dyes, and the like.
  • liquid additives also function in principle as plasticizers, which may reduce the hardness of the TPU.
  • the Applicant has found that the addition of a certain amount of chain extender or crosslinker can increase the hardness of the TPU to which the liquid additive is added. It is of course also possible to use a TPU blend of different hardness to achieve the effect of maintaining the hardness stability of the TPU, or it is also possible to achieve the effect by foaming by adding a foaming agent with a high hardness TPU.
  • the above specific raw materials are mixed in proportion, and then granulated materials can be produced by twin-screw extrusion, or can be directly injection-molded into a product as an injection molding.
  • the granulated or injection molded article thus obtained can exhibit good anti-yellowing and abrasion resistance while having low hardness.
  • the present application is also directed to the use of a TPU blend described herein in the preparation of a track.
  • the low-hardness TPU blend prepared by the present application can exhibit good anti-yellowing and abrasion resistance, it solves the problem that the existing TPU product is prone to yellowing and decreases with hardness. The defect that the wear resistance is lowered, so that the TPU blend prepared by the present application can be used to manufacture a track with excellent performance.
  • thermoplastic polyurethane elastomer blend the raw material formulation of the blend comprising, by weight percent, the following components:
  • thermoplastic polyurethane elastomer blend of paragraph 1 or 2 wherein the liquid direct dye is a dye whose pH tends to be neutral.
  • Paragraph 4 The thermoplastic polyurethane elastomer blend of paragraph 3, wherein the liquid direct dye is a dye having a pH in the range of 7-8.
  • thermoplastic polyurethane elastomer blend of paragraph 5 wherein the liquid direct dye is liquid direct blue.
  • thermoplastic polyurethane elastomer blend according to paragraph 9, wherein the chain extender is a mixture of one or more selected from the group consisting of glycol compounds.
  • thermoplastic polyurethane elastomer blend of paragraph 9 or 10 wherein the chain extender is selected from the group consisting of 1,4-butanediol, ethylene glycol, glycerol, 1,6-hexane Alcohol, 1,4-cyclohexanediol, neopentyl glycol, hydrogenated bisphenol A, resorcinol dihydroxyethyl ether or dihydroxyethyl terephthalate.
  • chain extender is selected from the group consisting of 1,4-butanediol, ethylene glycol, glycerol, 1,6-hexane Alcohol, 1,4-cyclohexanediol, neopentyl glycol, hydrogenated bisphenol A, resorcinol dihydroxyethyl ether or dihydroxyethyl terephthalate.
  • thermoplastic polyurethane elastomer blend of paragraph 12 wherein the crosslinking agent is dicumyl peroxide.
  • thermoplastic polyurethane elastomer blend of paragraph 16 wherein the TPU is a mixture of one or more thermoplastic polyurethane elastomers.
  • thermoplastic polyurethane elastomer blend of paragraph 16 wherein the TPU is a foamed material of a mixture of one or more thermoplastic polyurethane elastomers.
  • the liquid anti-UV agent is 2-(2H-benzotriazol-2-yl)-6-dodecyl-4- Methylphenol or 2-[4-[2-hydroxy-3-tridecyloxypropyl]oxy]-2-hydroxyphenyl]-4,6-bis(2,4-dimethylphenyl) )-1,3,5-triazine.
  • Paragraph 24 The thermoplastic polyurethane elastomer blend of paragraph 23, wherein the liquid heat stabilizer is bis(1,2,2,6,6-pentamethylpiperidinol) sebacate.
  • thermoplastic polyurethane elastomer blend of any of paragraphs 1 to 24, the raw material formulation of the blend comprising, by weight percent, the following components:
  • thermoplastic polyurethane elastomer blend of any of paragraphs 1 to 24, the raw material formulation of the blend comprising, by weight percent, the following components:
  • thermoplastic polyurethane elastomer blend of any of paragraphs 1-24 the raw material formulation of the blend comprising, by weight percent, the following components:
  • thermoplastic polyurethane elastomer blend of any of paragraphs 1-27 in the preparation of a track.
  • Paragraph 29 A method of preparing a crawler for a robot, comprising:
  • the granulated material is used as an injection molding material, and an injection molding process is performed to obtain a robot crawler belt;
  • the raw material formulation of the blend comprises, by weight percent, the following components:
  • the present embodiment provides a thermoplastic polyurethane elastomer blend with anti-yellowing, low hardness and wear resistance.
  • the raw material formula is: 99.29kg TPU, 0.5kg 2-(2H-benzotriazol-2-yl)-6 - dodecyl-4-methylphenol, 0.1 kg of bis(1,2,2,6,6-pentamethylpiperidinol) selenate, 0.01 kg of 1,4-butanediol, 0.1 kg of liquid Direct blue.
  • TPU selects BASF's soft 45A12P, and other commercially available chemically pure reagents.
  • the embodiment provides a thermoplastic polyurethane elastomer blend with anti-yellowing, low hardness and wear resistance, and the raw material formula thereof is: 99.74kg TPU, 0.1kg 2-(2H-benzotriazol-2-yl)-6 -dodecyl-4-methylphenol, 0.05 kg of bis(1,2,2,6,6-pentamethylpiperidinol) selenate, 0.1 kg of 1,4-butanediol, 0.01 kg
  • TPU selects BASF's soft 45A12P, and other commercially available chemically pure reagents.
  • the present embodiment provides a thermoplastic polyurethane elastomer blend with anti-yellowing, low hardness and wear resistance, and the raw material formula thereof is: 98.8 kg TPU, 0.5 kg 2-(2H-benzotriazol-2-yl)-6 -dodecyl-4-methylphenol, 0.1 kg of bis(1,2,2,6,6-pentamethylpiperidinol) selenate, 0.1 kg of blowing agent AC, 0.5 kg of liquid direct blue .
  • TPU selects WHT-1570IC of Yantai Wanhua Company, and other commercially available chemically pure reagents are used.
  • the embodiment provides a thermoplastic polyurethane elastomer blend with anti-yellowing, low hardness and wear resistance, and the raw material formula thereof is: 95.7kg TPU, 0.5kg 2-(2H-benzotriazol-2-yl)-6 - dodecyl-4-methylphenol, 0.1 kg of bis(1,2,2,6,6-pentamethylpiperidinol) selenate, 3 kg of blowing agent AC, 0.3 kg of 1,4-butyl
  • the diol, 0.5 kg liquid is directly blue.
  • TPU selects WHT-1570IC of Yantai Wanhua Company, and other commercially available chemically pure reagents are used.
  • the embodiment provides a thermoplastic polyurethane elastomer blend with anti-yellowing, low hardness and wear resistance.
  • the raw material formula is: 50kg TPU (Shore hardness 50A), 49.29TPU (Shore hardness 70A), 0.5kg 2-(2H-benzotriazol-2-yl)-6-(dodecyl)-4-methylphenol, 0.1 kg of azelaic acid bis(1,2,2,6,6-pentamethyl Piperidinol ester, 0.01 kg of 1,4-butanediol, 0.1 kg of liquid direct blue.
  • TPU selects DN703, B50A, and other commercially available chemically pure reagents.
  • the embodiment provides a thermoplastic polyurethane elastomer blend with anti-yellowing, low hardness and wear resistance.
  • the raw material formula is: 10kg TPU (Shore hardness 50A), 89.29TPU (Shore hardness 60A), 0.5kg 2-(2H-benzotriazol-2-yl)-6-(dodecyl)-4-methylphenol, 0.1 kg of azelaic acid bis(1,2,2,6,6-pentamethyl Piperidinol ester, 0.01 kg of 1,4-butanediol, 0.1 kg of liquid direct blue.
  • TPU selects TYG60A and B50A, and other commercially available chemically pure reagents are used.
  • granules are produced by twin-screw extrusion.
  • the obtained granules were subjected to abrasion resistance test (test standard ISO4649-A), anti-UV test (340 nm, irradiance 0.89 w/m 2 , 24 h), Shore hardness test (according to ASTM D1415 standard) and other performance tests.
  • the present embodiment provides a thermoplastic polyurethane elastomer blend with anti-yellowing, low hardness and wear resistance.
  • the raw material formula is: 89.29kg TPU (Shore hardness 40A), 10TPU (Shore hardness 90A), 0.5kg 2-(2H-benzotriazol-2-yl)-6-(dodecyl)-4-methylphenol, 0.1 kg of azelaic acid bis(1,2,2,6,6-pentamethyl Piperidinol ester, 0.1 kg 1,4-butanediol, 0.1 kg liquid direct blue.
  • TPU selects 35AP, B50A, and other commercially available chemically pure reagents are used.
  • granules are produced by twin-screw extrusion.
  • the obtained granules were subjected to abrasion resistance test (test standard ISO4649-A), anti-UV test (340 nm, irradiance 0.89 w/m 2 , 24 h), Shore hardness test (according to ASTM D1415 standard) and other performance tests.
  • the embodiment provides a thermoplastic polyurethane elastomer blend with anti-yellowing, low hardness and wear resistance, and the raw material formula thereof is: 99.295kg TPU, 0.5kg 2-(2H-benzotriazol-2-yl)-6 -(dodecyl)-4-methylphenol, 0.1 kg of bis(1,2,2,6,6-pentamethylpiperidinol) sebacate, 0.005 kg of dicumyl peroxide, 0.1 The kg liquid is directly blue. Among them, TPU selects 45A12P, and other commercially available chemically pure reagents are used.
  • the present embodiment provides a thermoplastic polyurethane elastomer blend with anti-yellowing, low hardness and wear resistance.
  • the raw material formula is: 99.3kg TPU, 0.5kg 2-(2H-benzotriazol-2-yl)-6 - Dodecyl-4-methylphenol, 0.1 kg of bis(1,2,2,6,6-pentamethylpiperidinol) sebacate, 0.1 kg of liquid direct blue.
  • TPU selects BASF's soft 45A12P, and other commercially available chemically pure reagents.
  • the embodiment provides a thermoplastic polyurethane elastomer blend with anti-yellowing, low hardness and wear resistance, and the raw material formula thereof is: 99.39kg TPU, 0.5kg 2-(2H-benzotriazol-2-yl)-6 - dodecyl-4-methylphenol, 0.1 kg of bis(1,2,2,6,6-pentamethylpiperidinol) selenate, 0.01 kg of 1,4-butanediol.
  • TPU selects BASF's soft 45A12P, and other commercially available chemically pure reagents.
  • the embodiment provides a robot crawler preparation method, including:
  • the granulated material is used as an injection molding material, and an injection molding process is performed to obtain a robot crawler belt.
  • the raw material formulation of the blend comprises, by weight percent, the following components:
  • the granulation materials were prepared by a twin-screw granulator. Then, the granulated material is used as an injection molding material, and the robot crawler belt is obtained by injection molding by two-color injection molding or insert molding.
  • the robot may be specifically a window cleaning robot or the like, and any function robot having a crawler belt is disposed, which is not specifically limited in this embodiment.
  • the robot track prepared by using the TPU blend provided by the above embodiments as a raw material has good anti-yellowing and wear resistance and has low hardness.

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  • Organic Chemistry (AREA)
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  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
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Abstract

L'invention concerne un mélange d'élastomère de polyuréthane thermoplastique (TPU), une utilisation du mélange d'élastomère de TPU, et un procédé de préparation de piste l'utilisant. Le mélange utilise un agent liquide résistant aux UV, un stabilisant thermique liquide, ainsi qu'un colorant direct et/ou un modificateur de dureté, ce qui permet de garantir que le mélange présente de bonnes propriétés anti-jaunissement et de résistance à l'usure ainsi qu'une faible dureté. Le modificateur de dureté est choisi parmi un ou plusieurs éléments parmi un allongeur de chaîne, un agent de réticulation et un agent moussant.
PCT/CN2018/105919 2017-09-20 2018-09-17 Mélange de tpu, son utilisation, et procédé de préparation de piste l'utilisant WO2019057001A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201710854738.8 2017-09-20
CN201710854738.8A CN109517361B (zh) 2017-09-20 2017-09-20 一种tpu共混物及其用途

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112745772A (zh) * 2020-12-29 2021-05-04 广东昂斯新材料技术有限公司 一种纯tpu材质的高弹热熔胶材料及其制备工艺
WO2021179933A1 (fr) * 2020-03-13 2021-09-16 科沃斯机器人股份有限公司 Robot mobile autonome, et courroie synchrone et procédé de préparation associé
US20220213253A1 (en) * 2019-05-16 2022-07-07 Miracll Chemicals Co., Ltd. Yellowing-resistant thermoplastic polyurethane foam material and preparation method thereof

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