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Low-odor and low-VOC TPV material for automobiles and preparation method thereof

A low-odor, automotive-grade technology, applied in low-VOC automotive TPV materials and its preparation, and low-odor fields, can solve problems such as low production efficiency and production capacity, cumbersome and complicated procedures, and high equipment requirements, and achieve reliable quality, low self-odour, low cost effect

Pending Publication Date: 2022-01-28
中广核三角洲(江苏)塑化有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method of directly improving the processing technology has high requirements for equipment, cumbersome and complicated procedures, long production cycle, low production efficiency and low production capacity. Therefore, there are still certain technical difficulties in mass production.

Method used

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  • Low-odor and low-VOC TPV material for automobiles and preparation method thereof
  • Low-odor and low-VOC TPV material for automobiles and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1~6

[0049] Embodiment 1~6: A kind of TPV material for automobile with low odor and low VOC

[0050] Preparation methods include:

[0051] The first step, pre-mixing: According to the weight ratio of Table 1, EPDM rubber, polypropylene, filler (nano calcium carbonate), plasticizer (white oil 323), antioxidant (antioxidant 1010), cross-linking agent (hydrogen-containing polymethylsiloxane, there are at least 3 silicon hydrogen groups in a molecular chain, and the silicon hydrogen content is between 1.2%), lubricant (silicone) after preparation, put into Mix evenly in an internal mixer, and then extrude and granulate through a single screw to obtain a base material; the mixing temperature of the internal mixer is 165-185° C., and the mixing time is 20 minutes. The extrusion temperature of single screw is 180~210℃.

[0052] In the second step, according to the proportioning by weight of Table 1, base material, adsorbent (using polypropylene as the microporous skeleton material, magn...

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Abstract

The invention discloses a low-odor and low-VOC TPV material for automobiles and a preparation method thereof. The material comprises the following raw materials in parts by weight: 50-80 parts of ethylene propylene diene monomer, 20-50 parts of polypropylene, 10-30 parts of a filler, 5-20 parts of a plasticizer, 0.1-1 part of an antioxidant, 0.1-5 parts of a cross-linking agent, 0.1-5 parts of a catalyst, 0.5-1.5 parts of a lubricant, and 1-5 parts of an adsorbent. According to the invention, the cross-linking system belongs to a novel environment-friendly cross-linking system, and the defects that a peroxide cross-linking system is heavy in smell and high in volatile substance content can be effectively overcome; and the addition of the adsorbent can further reduce the odor and VOC of the elastomer material, so that the elastomer material meets the requirements of low odor and low VOC of the material for the automotive trim, and can be applied to automotive instrument panels, automobile door and window sealing strips and door panel trim.

Description

technical field [0001] The invention relates to the field of dynamically vulcanized thermoplastic elastomers, in particular to a TPV material for automobiles with low odor and low VOC and a preparation method thereof. Background technique [0002] Dynamically vulcanized thermoplastic elastomer (TPV) is a blend of rubber and plastic under the action of high temperature and high shear. The rubber is vulcanized in situ under the action of high temperature. The phase is a dispersed phase, and the plastic phase is a microphase separation structure with a continuous phase. The cross-linked rubber phase gives the material the excellent resilience of thermoset rubber, and the continuous plastic phase is thermoplastic and reusable. [0003] At present, dynamically vulcanized thermoplastic elastomers are widely used in automotive interiors, medical and food packaging and other fields, but due to their strong odor and high VOC release, it is easy to cause nausea, vomiting, dizziness a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/16C08L23/12C08K9/12C08K9/00C08K3/34C08K3/26
CPCC08L23/16C08K2003/265C08L23/12C08K9/12C08K9/00C08K3/34C08K3/26
Inventor 史猛顾伟王小军
Owner 中广核三角洲(江苏)塑化有限公司
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