Nylon composite material and preparation method thereof

A nylon composite material, nylon technology, used in building insulation materials, building components, buildings, etc., can solve the problems of unstable mechanical properties, inability to improve dispersibility, failure to improve dispersibility, mechanical properties and water absorption, etc. Mechanical properties, improve dispersibility, improve mechanical effect

Inactive Publication Date: 2018-03-30
SOUTH UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] CN107189418A discloses a toughened nylon 6 and its preparation method. The toughened nylon 6 is prepared by blending nylon 6 and a toughening agent phosphate compound, but this material only solves the problem of unstable mechanical properties, and cannot improve Dispersion of the material as a whole; CN102344676A discloses glass fiber reinforced nylon 6, including nylon 6: 50.5-95%, alkali-free glass fiber: 4.5-55.5%, trichloroethane: 2.6-35%, heat stabilizer: 0.1 -3.0%, glass fiber treatment agent: 0.1-3.0%, other additives: 1.3-5.5%, which solves the problem of the two-phase interface combination of glass fiber and nylon 6, improves the surface finish of the product, and makes the finished product durable Wear resistance, although this method improves the wear resistance, it does not improve the dispersion, mechanical properties, water absorption and other properties of the system, which has certain defects

Method used

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  • Nylon composite material and preparation method thereof
  • Nylon composite material and preparation method thereof
  • Nylon composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] The graphite fluoride mass fraction is a nylon composite material of 3%, and the specific preparation method is as follows:

[0040] (1) Nylon 6 was dried at 60°C for 12 hours, then mixed with fluorinated graphite in a rheometer, and mixed at 240°C and 50 rpm for 15 minutes to obtain the product;

[0041] (2) The product described in step (1) was pulverized, dried at 60°C for 12 hours, and injected to obtain a nylon composite material with a mass of 3% graphite fluoride.

Embodiment 2

[0043] The graphite fluoride mass fraction is a nylon composite material of 0.5%, and the specific preparation method is as follows:

[0044] (1) Nylon 6 was dried at 50°C for 13 hours, then mixed with fluorinated graphite in a rheometer, and mixed at 220°C and 80 rpm for 12 minutes to obtain the product;

[0045] (2) The product described in the step (1) was pulverized, dried at 50°C for 13 hours, and injected to obtain a nylon composite material with a mass of 0.5% graphite fluoride.

[0046] The prepared nylon composite material was subjected to scanning electron microscope analysis of liquid nitrogen brittle fracture, such as Figure 1A As shown, on the cross-sectional surface of the nylon composite material, we can see well-dispersed fluorocarbon material particles, and many wrinkles centered on it appear on the surface, indicating that the fluorocarbon material is used as a stress dispersion point, which improves the nylon composite material. The mechanical properties of...

Embodiment 3

[0048]The graphite fluoride mass fraction is a nylon composite material of 1%, and the specific preparation method is as follows:

[0049] (1) Dry nylon 6 at 70°C for 10 hours, then mix it with fluorinated graphite in a rheometer, and knead at 250°C and 40 rpm for 17 minutes to obtain the product;

[0050] (2) The product described in step (1) was pulverized, dried at 70° C. for 10 hours, and injected to obtain a nylon composite material with 1% graphite fluoride mass.

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Abstract

The invention provides a nylon composite material and a preparation method thereof. The nylon composite material is prepared from nylon 6 and fluorocarbon materials as raw materials. The nylon composite material prepared by the preparation method provided by the invention has the advantages that the dispersibility of a system is improved, the mechanical properties of the material are improved, andthe mechanical, friction-resistant, heat-resistant, self-cleaning, electrical-insulation and water-repellent properties of the nylon composite material are effectively improved.

Description

technical field [0001] The invention belongs to the field of composite materials, and relates to a nylon composite material and a preparation method thereof. Background technique [0002] Nylon (Nylon) is a term for polyamide fibers, which can be made into long or short fibers. Nylon is the trade name of polyamide fiber, also known as nylon, the English name Polyamide (referred to as PA), and its basic composition is aliphatic polyamide linked by amide bonds [NHCO]. Commonly used nylon can be divided into two categories: one is polyhexamethylene adipate obtained by polycondensation of hexamethylenediamine and adipic acid, and the chemical structural formula of its long-chain molecule is The other is obtained by polycondensation or ring-opening polymerization of caprolactam, and the chemical structural formula of its long-chain molecules is: PA has good comprehensive properties, including mechanical properties, heat resistance, wear resistance, chemical resistance and sel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/02C08L95/00C08K3/04C08K7/24
Inventor 张至孙浩洋孙大陟
Owner SOUTH UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA
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