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A heat-resistant low-warpage nylon composite engineering plastic and its preparation method

A technology of engineering plastics and low warpage, applied in the field of heat-resistant and low warpage nylon composite engineering plastics and its preparation, can solve the problems of high mechanical strength, high price, general performance, etc., and achieve improved mechanical properties and improved mechanical properties , apply improved effects

Active Publication Date: 2022-03-08
广东君邦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

Engineering plastics have excellent comprehensive properties, high rigidity, low creep, high mechanical strength, good heat resistance, and good electrical insulation. They can be used in harsh chemical and physical environments for a long time, and can replace metals as engineering structural materials. , but the price is more expensive and the output is smaller
[0004] In order to reduce its cost, the existing technology uses composite engineering plastics. However, the performance of existing composite engineering plastics is general and cannot meet the needs of some occasions in the market. Therefore, further improvement of its performance is required to meet market needs.

Method used

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  • A heat-resistant low-warpage nylon composite engineering plastic and its preparation method
  • A heat-resistant low-warpage nylon composite engineering plastic and its preparation method

Examples

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preparation example Construction

[0030] Modified furan resin preparation method comprises the following steps:

[0031] (1) Add polybutylene terephthalate, maleic anhydride, 1-ethyl-(3-dimethylaminopropyl) carbodiimide hydrochloride, and carboxylated graphene to the mixer Mix in, then add to the twin-screw extruder and carry out melt extruding, obtain intermediate material;

[0032] (2) Mix the intermediate material and xylene together, heat and dissolve, then use acetone to precipitate, filter, wash, and dry to obtain the modified material;

[0033] (3) Add the modified material, furan resin, and dispersant into a mixer to mix evenly, and then use a twin-screw extruder to carry out melt extrusion and granulation to obtain the final product.

[0034] The weight ratio of polybutylene terephthalate, maleic anhydride, 1-ethyl-(3-dimethylaminopropyl) carbodiimide hydrochloride and carboxylated graphene is 40:5 :0.8:3.

[0035] The mixing mass ratio of intermediate material and xylene is 1:6;

[0036] The mass...

Embodiment 1

[0048] A heat-resistant low-warpage nylon composite engineering plastic, made of the following components in parts by weight: nylon 6688 glass beads 13, modified furan resin 11, inorganic filler 15, dioctadecyl thiodipropionate 1.0 , Magnesium borate whisker 1.2, microcrystalline cellulose 3, silane coupling agent 0.25, ethylene vinyl acetate copolymer 1, inorganic fiber 4. The preparation method of modified furan resin comprises the following steps: (1) polybutylene terephthalate, maleic anhydride, 1-ethyl-(3-dimethylaminopropyl) carbodiimide hydrochloride Salt and carboxylated graphene are added to a mixer for mixing, and then added to a twin-screw extruder for melt extrusion to obtain an intermediate material;

[0049] (2) Mix the intermediate material and xylene together, heat and dissolve, then use acetone to precipitate, filter, wash, and dry to obtain the modified material;

[0050](3) Add the modified material, furan resin, and dispersant into a mixer to mix evenly, a...

Embodiment 2

[0052] A heat-resistant low-warpage nylon composite engineering plastic, which is made of the following components in parts by weight: nylon 66100, glass beads 18, modified furan resin 13, inorganic filler 20, dioctadecyl thiodipropionate 1.4, magnesium borate whisker 2.5, microcrystalline cellulose 6, silane coupling agent 0.4, ethylene vinyl acetate copolymer 2, inorganic fiber 6. The preparation method of modified furan resin comprises the following steps: (1) polybutylene terephthalate, maleic anhydride, 1-ethyl-(3-dimethylaminopropyl) carbodiimide hydrochloride Salt and carboxylated graphene are added to a mixer for mixing, and then added to a twin-screw extruder for melt extrusion to obtain an intermediate material;

[0053] (2) Mix the intermediate material and xylene together, heat and dissolve, then use acetone to precipitate, filter, wash, and dry to obtain the modified material;

[0054] (3) Add the modified material, furan resin, and dispersant into a mixer to mix...

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Abstract

The invention discloses a heat-resistant and low-warpage nylon composite engineering plastic and a preparation method thereof; it relates to the technical field of engineering plastic production and is made of the following components: nylon 66, glass microspheres, modified furan resin, inorganic filler, thiosulfate Dioctadecyl dipropionate, magnesium borate whiskers, microcrystalline cellulose, silane coupling agent, ethylene vinyl acetate copolymer, inorganic fiber; the invention provides a heat-resistant low-warpage nylon composite engineering plastic and According to the preparation method, the mechanical properties of the nylon composite engineering plastics of the present invention are greatly improved, and at the same time, the heat resistance of the nylon composite engineering plastics is significantly improved, so that its application field can be better improved, especially in the high temperature field. The application has been significantly improved, and the service life has been significantly improved.

Description

technical field [0001] The invention belongs to the technical field of engineering plastic production, in particular to a heat-resistant low-warpage nylon composite engineering plastic and a preparation method thereof. Background technique [0002] The application of nylon has a long history. Its earliest application was in fiber, which has many excellent properties. After the 1950s, the market for engineering plastics to replace metals grew rapidly, and various specifications of nylon were successively developed and sold. Practical. At the end of the last century, due to the plasticization of electronics, motor parts, and auto parts, there were further requirements for the performance of nylon, especially in terms of high temperature resistance. In 1990, DSM realized the industrialization of high temperature resistant nylon PA46 for the first time, filling the gap in general engineering plastics. For example, the gap between polyamide 6, polyamide 66, polyester and ultra-h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L77/06C08L1/04C08L61/00C08K13/04C08K7/08C08K3/26C08K5/372C08K7/20C08K7/10
CPCC08L77/06C08L2201/08C08L2205/035C08K2003/265C08K2201/011C08L1/04C08L61/00C08K13/04C08K7/08C08K3/26C08K5/372C08K7/20C08K7/10
Inventor 张庆晓
Owner 广东君邦新材料科技有限公司