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Reinforced nylon engineering plastic and preparation method thereof

A technology of engineering plastics and nylon, applied in the field of engineering plastics, can solve the problems of insufficient adhesion between the matrix resin and glass fiber, unable to meet the needs of users, and reduce the mechanical properties of GFPA, so as to achieve strong retention of mechanical properties and increase in Contact area, the effect of improving mechanical properties

Inactive Publication Date: 2020-09-04
江苏双钦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

However, in the existing reinforced nylon engineering plastic products, due to the lack of adhesion between the matrix resin and the glass fiber, part of the glass fiber in the plastic pellet product is debonded from the matrix resin, thereby greatly reducing the mechanical properties of GFPA, which cannot meet the requirements of use. user needs

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The invention provides a reinforced nylon engineering plastic, which comprises the following raw materials in parts by weight: 90-110 parts of nylon matrix resin, 30-45 parts of glass fiber, 6-12 parts of toughening agent, and 0.3-0.8 parts of heat stabilizer , 0.2-0.9 parts of coupling agent, 2-4 parts of compatibilizer, the compatibilizer is set to epoxy resin and EPDM-g-MAH, the ratio of the epoxy resin and EPDM-g-MAH is set to 1 :1-1.4;

[0023] Specifically, this embodiment includes the following raw materials in parts by weight: 100 parts of nylon matrix resin, 35 parts of glass fiber, 9 parts of toughening agent, 0.5 part of thermal stabilizer, and 0.6 part of coupling agent.

[0024] The toughening agent is set to one or both of maleic anhydride grafted POE and maleic anhydride grafted LDPE, and the heat stabilizer is set to tetrakis (3,5-di-tert-butyl-4-hydroxyl) Pentaerythritol phenylpropionate, tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate]pentaer...

Embodiment 2

[0030] The invention provides a reinforced nylon engineering plastic, which comprises the following raw materials in parts by weight: 90-110 parts of nylon matrix resin, 30-45 parts of glass fiber, 6-12 parts of toughening agent, and 0.3-0.8 parts of heat stabilizer , 0.2-0.9 parts of coupling agent, 2-4 parts of compatibilizer, the compatibilizer is set to epoxy resin and EPDM-g-MAH, the ratio of the epoxy resin and EPDM-g-MAH is set to 1 :1-1.4;

[0031] Specifically, the present embodiment includes the following raw materials in parts by weight: 100 parts of nylon matrix resin, 35 parts of glass fiber, 9 parts of toughening agent, 0.5 part of heat stabilizer, 0.6 part of coupling agent, and 3 parts of compatibilizer , the compatibilizer is set to epoxy resin and EPDM-g-MAH, and the ratio of the epoxy resin to EPDM-g-MAH is set to 1:1.2.

[0032]The toughening agent is set to one or both of maleic anhydride grafted POE and maleic anhydride grafted LDPE, and the heat stabili...

Embodiment 3

[0038] The invention provides a reinforced nylon engineering plastic, which comprises the following raw materials in parts by weight: 90-110 parts of nylon matrix resin, 30-45 parts of glass fiber, 6-12 parts of toughening agent, and 0.3-0.8 parts of heat stabilizer , 0.2-0.9 parts of coupling agent, 2-4 parts of compatibilizer, the compatibilizer is set to epoxy resin and EPDM-g-MAH, the ratio of the epoxy resin and EPDM-g-MAH is set to 1 :1-1.4;

[0039] Specifically, the present embodiment includes the following raw materials in parts by weight: 100 parts of nylon matrix resin, 35 parts of glass fiber, 9 parts of toughening agent, 0.5 part of heat stabilizer, 0.6 part of coupling agent, and 3 parts of compatibilizer , the compatibilizer is set to epoxy resin.

[0040] The toughening agent is set to one or both of maleic anhydride grafted POE and maleic anhydride grafted LDPE, and the heat stabilizer is set to tetrakis (3,5-di-tert-butyl-4-hydroxyl) Pentaerythritol phenylp...

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Abstract

The invention discloses reinforced nylon engineering plastic and a preparation method thereof. Specifically, the invention relates to the field of engineering plastics. The reinforced nylon engineering plastic comprises the following raw materials in parts by weight: 90-110 parts of nylon matrix resin, 30-45 parts of glass fiber, 6-12 parts of a toughening agent, 0.3-0.8 parts of a heat stabilizer, 0.2-0.9 parts of a coupling agent and 2-4 parts of a compatilizer, wherein the compatilizer is prepared from epoxy resin and EPDM-g-MAH, and the ratio of the epoxy resin to the EPDM-g-MAH is set tobe 1: (1-1.4). According to the invention, the compatilizer is added in the traditional preparation method of the reinforced nylon engineering plastic, under the combined action of the epoxy resin andthe EPDM-g-MAH, the surface appearance of the glass fiber can be changed, so that the glass fiber has obvious wrinkles, the contact area of the glass fiber and matrix resin is increased, the bondingstrength of the glass fiber and the matrix resin is improved, and the mechanical properties of the prepared reinforced nylon engineering plastic in multiple aspects such as tensile strength, elongation at break and notch impact strength are improved.

Description

technical field [0001] The invention relates to the technical field of engineering plastics, more specifically, the invention relates to a reinforced nylon engineering plastic and a preparation method thereof. Background technique [0002] Polyamide (PA, commonly known as nylon) is the first resin developed by DuPont in the United States for fiber, and it was industrialized in 1939. In the 1950s, the development and production of injection molding products began to replace metals to meet the requirements of lightweight and cost-reducing downstream industrial products. PA has good comprehensive properties, including mechanical properties, heat resistance, wear resistance, chemical resistance and self-lubricating properties, low friction coefficient, certain flame retardancy, easy processing, suitable for glass fiber and Other fillers are filled and modified to improve performance and expand application range. Nylon engineering plastics are widely used in electronics, automo...

Claims

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Application Information

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IPC IPC(8): C08L77/00C08L63/00C08L51/04C08L51/06C08K13/04C08K7/14C08K5/544C08J5/04
CPCC08J5/043C08J2377/00C08J2451/04C08J2451/06C08J2463/00C08K5/544C08K7/14C08K13/04
Inventor 孟芳
Owner 江苏双钦新材料科技有限公司
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