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Easy-to-process high-modulus matte thermoplastic polyurethane elastomer and preparation method thereof

A thermoplastic polyurethane and elastomer technology, applied in the field of matte thermoplastic polyurethane elastomer and its preparation, can solve the problems of reduced mechanical properties of materials, unsatisfactory matte effect, narrow processing window, etc.

Active Publication Date: 2021-02-02
ZHEJIANG HUAFENG THERMOPLASTIC POLYURETHANE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Whether it is powdery inorganic filler or rubber or polymer elastomer material as the matting agent, if the addition amount is small, the matting effect is not ideal, and the processing window is narrow, and if the addition amount is too large, the mechanical properties of the material will be reduced

Method used

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  • Easy-to-process high-modulus matte thermoplastic polyurethane elastomer and preparation method thereof
  • Easy-to-process high-modulus matte thermoplastic polyurethane elastomer and preparation method thereof
  • Easy-to-process high-modulus matte thermoplastic polyurethane elastomer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] (1) Weigh the quality and dosage of raw materials listed in Example 1 in Table 1, add thermoplastic polyurethane, matte agent, matte regulator, silicone masterbatch, and auxiliary vulcanization agent into the twin-screw extruder through No. 1 feeding system In the extruder, the additives are added into the twin-screw extruder through the No. 2 feeding system, melted and extruded in the screw, and the thermoplastic polyurethane composition pellets are obtained after being pelletized and dried under water. The temperature of the screw is 200°C. The speed is 100RPM;

[0035] (2) Uniformly dissolving vulcanizing agent in plasticizer to obtain a mixed plasticizer solution containing vulcanizing agent, the mixed solution and the thermoplastic polyurethane composition particles prepared in step (1) are added to a low-speed mixer at the same time, at 60 Stir at ℃, the plasticizer is completely absorbed, and after drying, an easy-to-process, high-matte effect, high-modulus matte...

Embodiment 2

[0037] (1) Weigh the quality and dosage of raw materials listed in Example 2 in Table 1, add thermoplastic polyurethane, matte agent, matte regulator, silicone masterbatch, and co-vulcanizing agent into the twin-screw extruder through No. 1 feeding system In the extruder, the additives are added into the twin-screw extruder through the No. 2 feeding system, melted and extruded in the screw, and then pelletized and dried under water to obtain thermoplastic polyurethane composition particles. The temperature of the screw is 160°C. The speed is 80RPM;

[0038] (2) Uniformly dissolving vulcanizing agent in plasticizer to obtain a mixed plasticizer solution containing vulcanizing agent, the mixed solution and the thermoplastic polyurethane composition particles prepared in step (1) are added to a low-speed mixer at the same time, at 60 Stir at ℃, the plasticizer is completely absorbed, and after drying, an easy-to-process, high-matte effect, high-modulus matte thermoplastic polyure...

Embodiment 3

[0040] (1) Weigh the quality and dosage of raw materials listed in Example 3 in Table 1, add thermoplastic polyurethane, matte agent, matte regulator, silicone masterbatch, and auxiliary vulcanization agent into the twin-screw extruder through No. 1 feeding system In the extruder, the additives are added into the twin-screw extruder through the No. 2 feeding system, melted and extruded in the screw, and then pelletized and dried under water to obtain thermoplastic polyurethane composition particles. The temperature of the screw is 180°C. The speed is 50RPM;

[0041] (2) Uniformly dissolving vulcanizing agent in plasticizer to obtain a mixed plasticizer solution containing vulcanizing agent, the mixed solution and the thermoplastic polyurethane composition particles prepared in step (1) are added to a low-speed mixer at the same time, at 50 Stir at ℃, the plasticizer is completely absorbed, and after drying, an easy-to-process, high-matte effect, high-modulus matte thermoplasti...

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Abstract

The invention discloses an easy-to-process high-modulus matte thermoplastic polyurethane elastomer and a preparation method thereof. The easy-to-process high-modulus matte thermoplastic polyurethane elastomer is prepared from the following components by mass: thermoplastic polyurethane elastic 80-95 parts of body, 2.5-19 parts of matting agent, 0.1-0.5 parts of silicone masterbatch, 0.02-0.15 parts of vulcanizing agent, 0.5-3 parts of plasticizer, 0.05-0.3 parts of vulcanizing agent, the vulcanizing aid The agent is vinyl octapolycage silsesquioxane. The invention is an easy-to-process TPU with high matte surface effect and high modulus. During use, uniform partial crosslinking will occur in the extruder, thereby greatly widening the processing window of the matte TPU material and improving The matte effect, the modulus and heat resistance of the product have been studied.

Description

technical field [0001] The invention relates to a thermoplastic polyurethane elastomer and a preparation method thereof, in particular to an easy-to-process high-modulus matte thermoplastic polyurethane elastomer and a preparation method thereof. Background technique [0002] Thermoplastic polyurethane (TPU) is a new type of organic polymer synthetic material with great application potential. Its excellent wear resistance, oil resistance, resilience, environmental resistance and insulation make it widely used in the wire and cable industry. Since the current cable industry generally requires materials to have a certain matte performance, and ordinary TPU products do not have a matte matte effect, manufacturers usually add inorganic or organic matte agents to TPU and modify them by blending. method to reduce the glossiness of the product surface. [0003] Patent CN104497553A discloses an anti-aging matte thermoplastic polyurethane material, which is prepared by adding modifi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L75/06C08L75/08C08L51/04C08L23/06C08L83/04
CPCC08L75/06C08L75/08C08L2201/08C08L2205/025C08L2205/035C08L2207/04C08L2207/062C08L51/04C08L23/06C08L83/04
Inventor 施龙敏陈斌杨鹏洲袁仁能李俊江陈光静马肥
Owner ZHEJIANG HUAFENG THERMOPLASTIC POLYURETHANE
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