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Modified elastomer of nylon 1212 and preparation method thereof

An elastomer and nylon technology, applied in the field of nylon 1212 modified elastomer and its preparation, can solve problems such as poor compatibility and affect product performance, and achieve the effects of excellent toughness, improved product hardness and reduced cost

Active Publication Date: 2015-03-18
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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  • Modified elastomer of nylon 1212 and preparation method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0020] A modified elastomer of nylon 1212, comprising the following components in parts by weight: PA121215 parts, 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 1212, comprises the following steps:

[0022] First add PA1212 and 1 part of white mineral oil into the blender, stir evenly, then add calcium stearate into it, stir evenly, continue to add maleic anhydride grafted EPDM, ultra-low density polyethylene and SEBS to it, After it is stirred evenly, it is introduced into a twin-screw extruder. The processing technology is as follows: the temperature of the first zone is 160-180°C, the temperature of the second zone is 170-190°C, the temperature of the third zone is 175-195°C, the temperature of the fourth zone ...

Embodiment 2

[0024] A modified elastomer of nylon 1212, comprising the following components by weight: 245 parts of PA121, 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 1212, comprises the following steps:

[0026] First add PA1212 and 1 part of white mineral oil into the blender, stir evenly, then add calcium stearate into it, stir evenly, continue to add maleic anhydride grafted EPDM, ultra-low density polyethylene and SEBS to it, After it is stirred evenly, it is introduced into a twin-screw extruder. The processing technology is as follows: the temperature of the first zone is 160-180°C, the temperature of the second zone is 170-190°C, the temperature of the third zone is 175-195°C, the temperature of the fourth zone is 17...

Embodiment 3

[0028]A modified elastomer of nylon 1212, comprising the following components by weight: 270 parts of PA121, 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 1212, comprises the following steps:

[0030] First add PA1212 and 1 part of white mineral oil into the blender, stir evenly, then add calcium stearate into it, stir evenly, continue to add maleic anhydride grafted EPDM, ultra-low density polyethylene and SEBS to it, After it is stirred evenly, it is introduced into a twin-screw extruder. The processing technology is as follows: the temperature of the first zone is 160-180°C, the temperature of the second zone is 170-190°C, the temperature of the third zone is 175-195°C, the temperature of the fourth zone is ...

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Abstract

The invention belongs to the technical field of thermoplastic elastomer, and discloses a modified elastomer of nylon 1212 and a preparation method thereof. The modified elastomer comprises the following components in parts by weight: 15-70 parts of PA1212, 5-15 parts of nylon toughening compatilizer, 10-70 parts of SEBS (Styrenic Block Copolymer), 15-75 parts of ultra-low-density polyethylene, 1-15 parts of calcium stearate and 1-2 parts of white mineral oil. The modified elastomer has the characteristics that the PA1212 resists high temperature and oil, the proportion of the SEBS and the ultra-low-density polyethylene is small, the toughness is good, the compatibility is good, the product hardness is appropriate, and the cost is low.

Description

technical field [0001] The invention relates to the technical field of thermoplastic elastomers, in particular to a modified nylon 1212 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. TP...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L77/06C08L23/06C08L53/02C08L51/06C08K5/098B29B9/06B29C47/92H01B3/30H01B3/44H01B7/17B29C48/92
CPCB29C47/0066B29C47/92B29C48/0022B29C48/40
Inventor 田钟涛陈平旭
Owner 广东明聚新材料科技有限公司