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White thermoplastic polyether ester elastomer composition with good heat stability

A thermoplastic polyether ester and elastomer technology, which is applied in the white thermoplastic polyether ester elastomer composition and its preparation field, can solve the problems of polyether ester elastomer discoloration, application restrictions, color stains, etc., and achieve improved thermal stability , the effect of good dyeing performance

Active Publication Date: 2012-07-04
上海中纺物产发展有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Ordinary aromatic amine antioxidants can provide good high-temperature thermal stability effects, but due to their serious color stains, the products can only be made black and cannot be dyed in other colors, making them widely used in the fields of cables, interior and exterior parts of automobiles, etc. App is restricted
[0004] In the Chinese patent CN1303407A, a heat stabilizer combination composed of phenols and aromatic amines is selected. Although this combination can improve the stability of polyether ester elastomers at 135 ° C, it is not suitable for thermal stability at higher temperatures. properties are not mentioned, and some heat stabilizers in the patent can cause discoloration of polyetherester elastomers

Method used

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  • White thermoplastic polyether ester elastomer composition with good heat stability
  • White thermoplastic polyether ester elastomer composition with good heat stability
  • White thermoplastic polyether ester elastomer composition with good heat stability

Examples

Experimental program
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Effect test

Embodiment

[0056] The present invention will be further elaborated below in conjunction with specific embodiments. However, these examples are for illustrative purposes only, and are not intended to limit the protection scope of the present invention.

[0057] In the TSSJ-25 twin-screw extruder of Sichuan Chenguang Plastic Machinery Research Institute, the polyether ester elastomer copolymer and various stabilizers were blended and granulated in proportion, and the CJ80E injection molding machine of Guangdong Zhende Plastic Machinery Factory was in accordance with ISO37. Tensile splines are produced as standard, and the surface is visually inspected after aging in an aging oven. If the surface is cracked, the tensile performance test is not performed. If the surface is intact, the tensile performance test is performed on the CMT4202 tensile machine of Shenzhen Xinsansi Test Equipment Factory.

[0058] Observe whether the appearance of the product is deformed and cracked after 180°C / 3 hou...

example 1

[0069] By changing the combination of stabilizers, its influence on the heat resistance of HP3511 was investigated.

[0070] Table I

[0071]

[0072] NA: surface cracked, not tested

[0073] It can be seen from Table 1 that when the combination of Irganox 1098 / DSTP / Naugard445 stabilizer is used, the heat-resistant and stable effect on the product is obvious.

[0074] Experiment 2

[0075] By changing the combination of stabilizers, the impact on the heat resistance of the product HP4701 was investigated.

[0076] Table II

[0077]

[0078] NA: surface cracked, not tested

[0079] It can be seen from Table 2 that when a single stabilizer is used, the thermal stability effect is poor, and the product is deformed or cracked, which cannot meet the requirements. When phenolic and thiosulfate ester stabilizers are combined, it has a good effect, the product has no deformation and cracking phenomenon, and the tensile strength retention rate is 65.3%, but it still cannot r...

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Abstract

The invention provides a high temperature resisting thermoplastic polyether ester elastomer composition, which comprises a thermoplastic polyether ester elastomer copolymer and a heat stabilizer composition. The heat stabilizer composition comprises a phenolic heat stabilizer, a sulpho-ester stabilizer and an aromatic amine stabilizer. The heat stability of the thermoplastic polyether ester elastomer composition is improved remarkably, and the thermoplastic polyether ester elastomer composition has good dyeing property.

Description

technical field [0001] The invention relates to a thermoplastic polyether ester elastomer composition and a preparation method thereof, in particular to a white thermoplastic polyether ester elastomer composition with good thermal stability and a preparation method thereof. Background technique [0002] As an engineering grade elastomer, thermoplastic polyether ester elastomer has excellent physical and mechanical properties, such as high strength, high toughness, fatigue resistance, abrasion resistance, oil resistance, chlorine resistance, good electrical properties and low temperature resistance Therefore, it has been continuously used in various aspects in recent years. However, due to the existence of a large number of ether bonds in thermoplastic polyetherester elastomers, it is easy to oxidatively degrade, resulting in poor high temperature thermal stability, which limits its application in some high-end fields. For example, for wires and cables with a temperature res...

Claims

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Application Information

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IPC IPC(8): C08L67/02C08K5/20C08K5/134C08K5/101C08K5/3492C08K5/372C08K5/18
Inventor 李泽阳刘森林沈贵宏南建举
Owner 上海中纺物产发展有限公司
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