Wear-resistant nylon composite material and preparation method thereof

A nylon composite material, nylon technology, applied in the field of engineering plastics, can solve the problems of reduced wear resistance and thermal stability, high water absorption, poor dimensional stability, etc., to achieve low friction and wear, reduce production losses, and improve service life. Effect

Inactive Publication Date: 2015-04-22
CHANGSHA HANWEI DAXIN MSTAR TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the amide group on the molecular chain of nylon 66 is polar, easy to form hydrogen bonds, and has high water absorption, resulting in poor dimensional stability, wear resistance and thermal stability of the product.

Method used

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  • Wear-resistant nylon composite material and preparation method thereof
  • Wear-resistant nylon composite material and preparation method thereof
  • Wear-resistant nylon composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] 40 parts by weight of molybdenum disulfide, 60 parts by weight of tungsten disulfide, mixed evenly, put in a ball mill at 250r / min, ball milled for 12h, the particle size is 300nm, to obtain the required solid lubricant, and set aside;

[0019] With maleic anhydride grafted POE and maleic anhydride grafted EPDM, the graft ratio is 0.9, and the mixing ratio of the two is 1: 1 and mixed evenly, as a compatibilizer for subsequent use;

[0020] 100 parts of nylon 66 with an intrinsic viscosity of 2.7±0.05, 6 parts of the above-mentioned solid lubricant, 30 parts of glass fiber, 12 parts of polytetrafluoroethylene, 3 parts of silicone powder, 4 parts of compatibilizer, and 1 part of antioxidant;

[0021] Dry the required quality of nylon 66 with hot air at 120°C for 8 hours, and dry the required quality of compatibilizer with hot air at 80°C for 4 hours, then mix the required silicone powder, antioxidant, treated nylon 66, solid Lubricant, polytetrafluoroethylene, and compat...

Embodiment 2

[0023] Mix 70 parts by weight of molybdenum disulfide and 30 parts by weight of tungsten disulfide in a ball mill at 350r / min, ball mill for 6 hours, and the particle size is 400nm to obtain the required solid lubricant, which is set aside;

[0024] With maleic anhydride grafted POE and maleic anhydride grafted EPDM, the graft ratio is 0.9, and the mixing ratio of the two is 1: 1 and mixed evenly, as a compatibilizer for subsequent use;

[0025] 100 parts of nylon 66 with an intrinsic viscosity of 2.7±0.05, 20 parts of the above-mentioned solid lubricant, 35 parts of glass fiber, 15 parts of polytetrafluoroethylene, 7 parts of silicone powder, 10 parts of compatibilizer, and 2 parts of antioxidant;

[0026] Dry the required quality of nylon 66 with hot air at 120°C for 8 hours, and dry the required quality of compatibilizer with hot air at 80°C for 4 hours, then mix the required silicone powder, antioxidant, treated nylon 66, solid Lubricant, polytetrafluoroethylene, and compa...

Embodiment 3

[0028] Mix 50 parts by weight of molybdenum disulfide and 50 parts by weight of tungsten disulfide in a ball mill at 300r / min, ball mill for 10 hours, and the particle size is 400nm to obtain the required solid lubricant for future use;

[0029] With maleic anhydride grafted POE and maleic anhydride grafted EPDM, the graft ratio is 0.9, and the mixing ratio of the two is 1: 1 and mixed evenly, as a compatibilizer for subsequent use;

[0030] 100 parts of nylon 66 with an intrinsic viscosity of 2.7±0.05, 10 parts of the above-mentioned solid lubricant, 32 parts of glass fiber, 13 parts of polytetrafluoroethylene, 5 parts of silicone powder, 8 parts of compatibilizer, and 1 part of antioxidant;

[0031] Dry the required quality of nylon 66 with hot air at 120°C for 8 hours, and dry the required quality of compatibilizer with hot air at 80°C for 4 hours, then mix the required silicone powder, antioxidant, treated nylon 66, solid Lubricant, polytetrafluoroethylene, and compatibili...

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Abstract

The invention belongs to the technical field of engineering plastics, and concretely relates to a wear-resistant nylon composite material and a preparation method thereof. The wear-resistant nylon composite material comprises, in parts by weight, 100 parts of nylon, 6-20 parts of a solid lubricant, 30-35 parts of glass fibre, 12-15 parts of teflon, 3-7 parts of silicone powder, 4-10 parts of a compatibilizer, and 1-2 parts of an anti-oxidant, wherein the solid lubricant comprises 40-70 parts of molybdenum disulfide and 30-60 parts of tungsten sulfide, is prepared by uniformly mixing the two compositions and performing ball milling in a ball mill at a rotation speed of 250-350 r/min for 6-12 h, and has the particle size of 300-400 nm.

Description

technical field [0001] The invention belongs to the technical field of engineering plastics, and in particular relates to a wear-resistant nylon composite material and a preparation method thereof. Background technique [0002] Nylon (Nylon), a polyamide fiber, is a general term for thermoplastic resins containing repeating amide groups - [NHCO] - on the main chain of the molecule. It was invented by the famous American chemist Carothers and his research team. At present, it is Widely used in automobiles, electrical equipment, mechanical parts, transportation equipment, textiles, papermaking machinery and other fields. With the continuous progress of social production, people hope that traditional nylon materials will have more wear-resistant and higher strength characteristics. Compared with metal materials, plastic materials have low density, can be formed by injection molding, and have low production costs. Nylon plastic material has excellent mechanical properties, suc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/06C08L51/06C08L51/04C08L27/18C08K13/04C08K7/14C08K3/30B29C47/92B29C48/92
CPCC08L77/06B29C48/92B29C2948/9259B29C2948/92704C08K2201/003C08K2201/011C08K2201/014C08L2205/035C08L51/06C08L51/04C08L27/18C08L83/04C08K13/04C08K7/14C08K2003/3009C08L51/003
Inventor 谢志斌
Owner CHANGSHA HANWEI DAXIN MSTAR TECH
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