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Modified thermoplastic polyurethane and preparation method and application thereof

A thermoplastic polyurethane modification technology, applied in the preparation of the modified thermoplastic polyurethane, in the field of modified thermoplastic polyurethane, can solve the problems of increasing equipment, material site cost and labor cost, increasing the risk of safe production, prolonging the production cycle, etc. , to achieve the effect of reducing the surface friction coefficient, reducing the friction coefficient and improving the processing performance

Active Publication Date: 2010-06-09
NINGBO TAIYONG AUTOMOTIVE PARTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The basic process of this method adds two processes of spraying and drying to the original process. Spraying is likely to cause environmental pollution, affect the health of employees, increase the cost of equipment, materials, site costs and labor costs, and at the same time require technical control. Improvement, the preparation of paint every 2 hours, the storage period of the prepared paint must be strictly monitored, which increases the risk of safe production, and the production cycle is extended and labor efficiency is reduced

Method used

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  • Modified thermoplastic polyurethane and preparation method and application thereof
  • Modified thermoplastic polyurethane and preparation method and application thereof
  • Modified thermoplastic polyurethane and preparation method and application thereof

Examples

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Embodiment 1

[0036] Embodiment 1: The modified thermoplastic polyurethane in this embodiment comprises the following components and the raw materials of weight ratio are blended: 62 parts of thermoplastic polyurethane, 37 parts of ultra-high molecular weight polyethylene, 9.3 parts of surface lubricant, 1.5 parts of phase solvent 0.2 parts, 0.2 parts of stabilizer, 0.2 parts of antioxidant, 0.2 parts of carbon black.

[0037] Among them, the antioxidant is Irganox1010, Irganox1076 or Cyanox1790, the surface lubricant is a silicone lubricant, and the silicone masterbatch of the silicone lubricant is composed of acrylonitrile-styrene copolymer and monovinyl A mixture of blocked dimethyl (siloxane and polysiloxane).

[0038] The phase solvent is aqueous phase method chlorinated polyethylene, that is, the phase solvent M-5.

[0039] 0.15 parts of Tinuvin791 and 0.15 parts of Tinuvin326 in the stabilizer.

[0040] Specifically prepared by the following steps:

[0041] ①Put each component mat...

Embodiment 2

[0047] Embodiment 2: The modified thermoplastic polyurethane in this embodiment comprises the following components and the raw material blending of weight ratio: thermoplastic polyurethane 72 parts, ultra-high molecular weight polyethylene 18 parts, surface lubricant 7 parts, phase solvent 2.3 parts, 0.3 parts of stabilizer, 0.15 parts of antioxidant, 0.15 parts of carbon black. Specific preparation method and application refer to Example 1.

Embodiment 3

[0048] Embodiment 3: The modified thermoplastic polyurethane in this embodiment comprises the following components and the raw material blending of weight ratio: 76 parts of thermoplastic polyurethane, 7.6 parts of ultra-high molecular weight polyethylene, 3.8 parts of surface lubricant, 6 parts of phase solvent part, 0.4 part of stabilizer, 0.1 part of antioxidant, and 0.1 part of carbon black. Specific preparation method and application refer to Example 1.

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Abstract

The invention relates to modified thermoplastic polyurethane which is prepared by blending the components in weight ratio: 62-76 parts of thermoplastic polyurethane, 7.6-37 parts of ultra high molecular weight polyethylene, 3.8-9.3 parts of surface lubricant, 1.5-6 parts of compatibilizer and 0.2-0.4 part of stabilizer. Compared with the prior art, the modified thermoplastic polyurethane has the advantages that the ultra high molecular weight polyethylene (UHMWPE) material is taken as a modifier with low friction coefficient; as a synergistic assistant, the modified thermoplastic polyurethane is simultaneously added with the surface lubricant so that the surface friction coefficient of thermoplastic polyurethane (TPU) is lowered simultaneously and the processability is also improved; by the suitable formula and the blending modification of the materials, the friction coefficient of the TPU is lowered.

Description

technical field [0001] The invention relates to a modified thermoplastic polyurethane, and also relates to a preparation method and specific application of the modified thermoplastic polyurethane. The invention belongs to the technical field of polymer compound composition. Background technique [0002] The protective layer of the existing automatic door cable uses thermoplastic polyurethane (TPU for short). In the actual operation process, due to the contact with the metal surface, the friction force is relatively large, and the load of the motor will increase in the actual operation process. There is a problem. At the same time, the surface of the cable is also easily damaged by wear and tear. It is found through experiments that as long as the friction force is reduced by more than 30%, the power of the motor can meet the application and the service life of the surface of the cable can also be satisfied. In addition, TPU is also used in door frame seal parts. When the do...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L75/04C08L23/06C08L25/12C08L33/20C08L83/07C08L23/28E06B7/23B60J10/08B60J10/86
Inventor 胡益男蒋奇斌
Owner NINGBO TAIYONG AUTOMOTIVE PARTS
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