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Wear-resistant and high-temperature-resistant nylon composite material and preparation method thereof

A technology of nylon composite materials and high temperature resistance, applied in the field of polymer materials, can solve the problems of loss of mechanical properties of materials, clogging of extruder die heads, and broken bars, etc., to achieve stable product quality, improve wear resistance, and production high efficiency effect

Active Publication Date: 2014-09-17
HEFEI GENIUS NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Although the existing high-temperature-resistant nylon can increase its wear resistance when adding wear-resistant agents, correspondingly, due to the poor compatibility between them, the mechanical properties of the material will be seriously lost; in addition, during processing, it is easy to There are serious process problems such as extruder die blockage and sliver breakage

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0032] (1) Dry high-temperature-resistant nylon, nylon 66, wear-resistant agent, antioxidant, and lubricant at 120°C for 4 hours;

[0033] (2) Put 10 parts of nylon 66 and 5 parts of anti-wear agent molybdenum disulfide in a high-mixer, and stir for 5 minutes at 80°C and 1000 rpm; then add 85 parts of high-temperature resistant nylon PA6T, 0.1 parts Antioxidant 1010, 0.1 part of antioxidant 168, 0.4 part of lubricant barium stearate and mix well at room temperature.

[0034] (3) Put the mixed raw materials into the twin-screw extruder, melt and extrude to granulate. Zone 310°C, zone 6 300°C, zone 7 295°C, head 285°C, extrusion rate 300r / min.

[0035]

Embodiment 3

[0037] (1) Dry high-temperature-resistant nylon, nylon 66, wear-resistant agent, antioxidant, and lubricant at 80-120°C for 4-6 hours;

[0038] (2) Put 35 parts of nylon 66 and 5 parts of anti-wear agent molybdenum disulfide in a high-mixer, and stir for 5 minutes at 80°C and 1000 rpm; then add 65 parts of high-temperature resistant nylon PA6T, 0.2 parts Antioxidant 1010, 0.2 part of antioxidant 168, 0.8 part of lubricant zinc stearate and mix well at room temperature.

[0039] (3) Add the mixed raw materials into the twin-screw extruder, melt and extrude to granulate. Zone 310°C, zone 6 300°C, zone 7 295°C, head 285°C, extrusion rate 300r / min.

[0040]

Embodiment 4

[0042] (1) Dry high-temperature-resistant nylon, nylon 66, wear-resistant agent, antioxidant, and lubricant at 100°C for 5 hours;

[0043] (2) Put 25 parts of nylon 66 and 15 parts of anti-wear agent molybdenum disulfide in a high-mixer, and stir for 5 minutes at 80°C and 1000 rpm; then add 80 parts of high-temperature resistant nylon PA46, 0.2 parts Antioxidant 1010, 0.3 part of antioxidant 168, 0.6 part of lubricant barium stearate and mix well at room temperature.

[0044] (3) Add the mixed raw materials into the twin-screw extruder, melt and extrude to granulate. Zone 310°C, zone 6 300°C, zone 7 295°C, head 285°C, extrusion rate 300r / min.

[0045]

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Abstract

The invention provides a wear-resistant and high-temperature-resistant nylon composite material and a preparation method thereof. The composite material comprises the following components in parts by weight: 65-95 parts of high-temperature-resistant nylon, 5-35 parts of nylon66, 1-15 parts of wear-resistant agent, 0.1-1.0 part of antioxidant and 0.2-1.0 part of lubricating agent, and is prepared by virtue of a double-screw melt blending extrusion process after mixing. According to the wear-resistant and high-temperature-resistant nylon composite material, nylon66 and the wear-resistant agent are firstly premixed so as to greatly improve the dispersibility of the wear-resistant agent in the composite material and regulate the viscosity of the composite material, thus improving the wear-resistance performance and heat-resistant performance of the composite material, ensuring that the composite material has higher application values, and broadening the application range; the composite material can be widely applied to the field of electronic and electrical appliances, automobiles, military industries and the like, and can be used for promoting the smooth processing of extruding machines.

Description

[0001] technical field [0002] The invention belongs to the technical field of polymer materials, and in particular relates to a wear-resistant and high-temperature-resistant nylon composite material and a preparation method thereof. [0003] Background technique [0004] High temperature resistant nylon is a kind of aromatic polyamide, which is a polyamide resin prepared by polycondensation reaction of diamine or dicarboxylic acid with aromatic ring and aliphatic dicarboxylic acid or diamine. Due to the introduction of aromatic rings into the main chain of polyamide molecules, its heat resistance and mechanical properties are improved, water absorption is reduced, and it has a more suitable performance / price ratio. Therefore, high-temperature-resistant nylon is a high-heat-resistant resin between general-purpose engineering plastic nylon and high-temperature-resistant engineering plastic polyether ether ketone (PEEK), and is increasingly used in machinery, electronics and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/06C08K13/02C08K3/30C08K5/134C08K5/526C08K5/098B29B9/06
CPCB29B9/06B29C48/92B29C2948/9258B29C2948/92704C08K2201/003C08L77/06C08L2201/08C08L2205/025C08K13/02C08K2003/3009C08K5/1345C08K5/526C08K5/098
Inventor 杨桂生李万里
Owner HEFEI GENIUS NEW MATERIALS
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