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Nylon-66 modified elastomer and preparation method thereof

A technology of elastomer and nylon, which is applied in the field of nylon 66 modified elastomer and its preparation, can solve the problems affecting product performance and poor compatibility, and achieve the effect of improving easy peeling, excellent toughness and good tensile strength

Active Publication Date: 2013-05-22
广东明聚新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] TPE, TPV and polyamide each have their own advantages and disadvantages, and their limited scope of use. If the advantages of combining the two are combined with polyamide and elastomer, the scope of use of the two in industry will be expanded, but the combination of the two materials , especially the difference in polarity and structure between polyamide materials and thermoplastic elastomer TPE, resulting in poor compatibility of the two materials, if the polyamide or TPE is not modified accordingly to improve the compatibility of the two, it will directly affect to product performance

Method used

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  • Nylon-66 modified elastomer and preparation method thereof

Examples

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Effect test

Embodiment 1

[0020] A modified elastomer of nylon 66, comprising the following components by weight: 15 parts of PA66, 5 parts of maleic anhydride grafted EPDM, 10 parts of SEBS, 15 parts of ultra-low density polyethylene, 1 part of calcium stearate, white ore 1 part of oil, wherein the grafting rate of maleic anhydride grafted EPDM is 0.8%.

[0021] A kind of preparation method of the modified elastomer of above-mentioned nylon 66, comprises the following steps:

[0022] First add PA66 and 1 part of white mineral oil into the blender, stir evenly, then add calcium stearate to it, stir evenly, continue to add maleic anhydride grafted EPDM, ultra-low density polyethylene and SEBS to it, After it is evenly stirred, it is introduced into a twin-screw extruder. The processing technology is as follows: the temperature of the first zone is 190-220°C, the temperature of the second zone is 200-230°C, the temperature of the third zone is 205-235°C, the temperature of the fourth zone is 215-245°C, a...

Embodiment 2

[0024] A modified elastomer of nylon 66, comprising the following components by weight: 45 parts of PA66, 10 parts of maleic anhydride grafted EPDM, 40 parts of SEBS, 45 parts of ultra-low density polyethylene, 8 parts of calcium stearate, white ore 1 part of oil, wherein the grafting rate of maleic anhydride grafted EPDM is 1%.

[0025] A kind of preparation method of the modified elastomer of above-mentioned nylon 66, comprises the following steps:

[0026] First add PA66 and 1 part of white mineral oil into the blender, stir evenly, then add calcium stearate to it, stir evenly, continue to add maleic anhydride grafted EPDM, ultra-low density polyethylene and SEBS to it, After it is evenly stirred, it is introduced into a twin-screw extruder. The processing technology is as follows: the temperature of the first zone is 190-220°C, the temperature of the second zone is 200-230°C, the temperature of the third zone is 205-235°C, the temperature of the fourth zone is 215-245°C, a...

Embodiment 3

[0028] A modified elastomer of nylon 66, comprising the following components by weight: 70 parts of PA66, 15 parts of maleic anhydride grafted EPDM, 70 parts of SEBS, 75 parts of ultra-low density polyethylene, 15 parts of calcium stearate, white ore 1 part of oil, wherein the grafting rate of maleic anhydride grafted EPDM is 1.5%.

[0029]A kind of preparation method of the modified elastomer of above-mentioned nylon 66, comprises the following steps:

[0030] First add PA66 and 1 part of white mineral oil into the blender, stir evenly, then add calcium stearate to it, stir evenly, continue to add maleic anhydride grafted EPDM, ultra-low density polyethylene and SEBS to it, After it is evenly stirred, it is introduced into a twin-screw extruder. The processing technology is as follows: the temperature of the first zone is 190-220°C, the temperature of the second zone is 200-230°C, the temperature of the third zone is 205-235°C, the temperature of the fourth zone is 215-245°C,...

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Abstract

The invention belongs to the technical field of thermoplastic elastomers and discloses a nylon-66 modified elastomer and a preparation method thereof. The nylon-66 modified elastomer comprises the following components in parts by weight: 15-70 parts of PA66, 5-15 parts of nylon toughening compatilizer, 10-70 parts of SEBS, 15-75 parts of ultra-low density polyethylene, 1-15 parts of calcium stearate and 1-2 parts of white mineral oil. The nylon-66 modified elastomer has the characteristics of high temperature resistance and oil resistance, has the characteristics of SEBS, low specific gravity of ultra-low density polyethylene and high toughness and has high compatibility, proper product hardness and low cost.

Description

technical field [0001] The invention relates to the technical field of thermoplastic elastomers, in particular to a modified nylon 66 elastomer used for wire and cable sheaths and automobile pipelines and a preparation method thereof. Background technique [0002] The existing materials used in wire and cable sheaths and automobile pipelines are mostly styrene thermoplastic elastomer (TPE) and thermoplastic vulcanizate (TPV). TPE is a kind of rubber with high elasticity, high resilience, and plasticity. Processing characteristics, environmental protection, non-toxic and safe, wide range of hardness, excellent colorability, weather resistance, fatigue resistance and temperature resistance, excellent processing performance, no need for vulcanization, can be recycled to reduce costs, wide application fields, can be used for plastics However, TPE has poor heat resistance, and its physical properties decrease greatly as the temperature rises, so the scope of use is limited. TPV ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/06C08L23/06C08L53/02C08L51/06C08K5/098B29B9/06B29C47/92H01B3/30H01B3/44H01B7/17B29C48/92
CPCB29C48/04B29C48/40
Inventor 田忠涛陈平旭
Owner 广东明聚新材料科技有限公司
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