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High-fluidity TPV material and preparing method thereof

A high-fluidity, raw material technology, applied in the field of TPV materials, can solve the problems of lack of improvement in fluidity, reduced mechanical properties of products, equipment energy consumption, and large wear, etc., to improve permanent deformation resistance and processing. The effect of reducing the effect of fluidity deterioration and the effect of sufficient blending process

Active Publication Date: 2016-02-03
安徽韧达高分子材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the thermoplastic elastomer materials prepared by the two methods have certain improvements in the impact performance, oil resistance, oxidation resistance, ozone resistance and other properties of thermoplastic elastomers, they are not stable in the fluidity of thermoplastic elastic injection molding. There is no better improvement, especially for injection molding materials. Poor fluidity will cause the phenomenon of material shortage and weld marks in the product, which will greatly reduce the mechanical properties of the product. Energy consumption and wear are also quite large, resulting in high production costs

Method used

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  • High-fluidity TPV material and preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A kind of high fluidity TPV material, its raw material comprises by weight:

[0024]

[0025] The preparation of the high-fluidity TPV material includes: adding EPDM, polypropylene, POE elastomer, antioxidant, and light stabilizer to a kneader for mixing, then sending it into a twin-screw extruder for the first plasticizing, cutting After granulation, the first semi-finished granules are obtained; after the first semi-finished granules are mixed with PE, internal lubricant, and plasticizer, they are sent to the twin-screw extruder for the second plasticizing, and the second semi-finished granules are obtained after pelletizing ; After mixing the second semi-finished particle with the crosslinking agent, send it into the twin-screw extruder for the third mixing, and obtain the high fluidity TPV material after pelletizing; the processing in the first plasticizing process The temperature is 160°C, and the screw speed is 400r / min; the processing temperature in the second...

Embodiment 2

[0028] A kind of high fluidity TPV material, its raw material comprises by weight:

[0029]

[0030]

[0031]The preparation of the high-fluidity TPV material includes: adding EPDM, polypropylene, POE elastomer, antioxidant, and light stabilizer to a kneader for mixing, then sending it into a twin-screw extruder for the first plasticizing, cutting After granulation, the first semi-finished granules are obtained; after the first semi-finished granules are mixed with PE, internal lubricant, and plasticizer, they are sent to the twin-screw extruder for the second plasticizing, and the second semi-finished granules are obtained after pelletizing ; After mixing the second semi-finished particle with the crosslinking agent, send it into the twin-screw extruder for the third mixing, and obtain the high fluidity TPV material after pelletizing; the processing in the first plasticizing process The temperature is 190°C, and the screw speed is 200r / min; the processing temperature in...

Embodiment 3

[0034] A kind of high fluidity TPV material, its raw material comprises by weight:

[0035]

[0036]

[0037] The preparation of the high-fluidity TPV material includes: adding EPDM, polypropylene, POE elastomer, antioxidant, and light stabilizer to a kneader for mixing, then sending it into a twin-screw extruder for the first plasticizing, cutting After granulation, the first semi-finished granules are obtained; after the first semi-finished granules are mixed with PE, internal lubricant, and plasticizer, they are sent to the twin-screw extruder for the second plasticizing, and the second semi-finished granules are obtained after pelletizing ; After mixing the second semi-finished particle with the crosslinking agent, send it into the twin-screw extruder for the third mixing, and obtain the high fluidity TPV material after pelletizing; the processing in the first plasticizing process The temperature is 180°C, and the screw speed is 300r / min; the processing temperature i...

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Abstract

The invention discloses a high-fluidity TPV material. The high-fluidity TPV material is prepared from, by weight, 30-60 parts of EPDM, 20-40 parts of polypropylene, 5-10 parts of PE, 3-8 parts of POE elastomer, 20-40 parts of plasticizer, 1-3 parts of antioxidant, 1-3 parts of light stabilizer, 1-3 parts of internal lubricating agents and 1-3 parts of cross-linking agents. The high-fluidity TPV material has high fluidity, low compressive deformation, and excellent shock resistance, chemical resistance and oil resistance.

Description

technical field [0001] The invention relates to the technical field of TPV materials, in particular to a high-fluidity TPV material and a preparation method thereof. Background technique [0002] TPV is the abbreviation of Thermoplastic Vulcanization. The Chinese name is thermoplastic dynamic vulcanized elastomer or thermoplastic dynamic vulcanized rubber. It is an elastomer material composed of highly vulcanized rubber particles dispersed in a continuous plastic phase. TPV has physical properties and functional characteristics similar to thermosetting rubber at room temperature, and has the characteristics of thermoplastic melt flow and repeated processing at high temperature. It has the advantages of convenient molding and processing, recyclable materials, and excellent comprehensive performance. [0003] TPV material has low cost, excellent mechanical properties, high impact strength, oil resistance, aging resistance, and weather resistance. It is gradually replacing ther...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L23/16C08L23/06C08L23/08C08L91/00C08L83/04C08L91/06C08K13/02C08K5/13C08K5/14C08K5/12C08K5/3492C08K5/33C08K5/00
CPCC08L23/12C08L23/16C08L2201/08C08L2205/02C08L2205/035C08L23/06C08L23/0815C08L91/00C08L83/04C08K5/00C08K5/13C08K5/14C08K5/12C08K5/3492C08K5/33C08L91/06C08K5/09C08K5/20
Inventor 王强
Owner 安徽韧达高分子材料有限公司
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