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Injection molding grade graphite-filled high-temperature nylon and production process thereof

A production process and injection molding technology, applied in the field of organic polymer composite materials, can solve problems such as limiting the application scope of high-temperature nylon, and achieve the effects of reducing production costs and raw material costs, facilitating procurement, and improving comprehensive competitiveness.

Inactive Publication Date: 2013-01-30
KECHUANG POLYMER SUZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This shortcoming greatly limits the application range of high temperature nylon

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Embodiment 1 provides a self-lubricating wear-resistant injection molding grade graphite-filled high-temperature nylon, which is composed of the following components by weight ratio, high-temperature nylon: 70.4%; high molecular weight silicone oil: 2.0%; conductive graphite powder: 25%, antioxidant: 1.0%; silane coupling agent: 1.0%; other additives: 0.6%.

[0013] First, mix the conductive graphite powder and the coupling agent in proportion at about 50 degrees for ten minutes, and then let it stand naturally for 6 hours. Mix high-temperature nylon and high molecular weight silicone oil in the mixer for 10 minutes, and then mix it with antioxidants and other additives. After the agent is weighed according to the proportion, it is mixed in the mixer at a low speed for 10 minutes. The mixer adopts low-speed mixing. The gap between the stirring blade and the cylinder wall should be less than 0.5 cm. The mixing effect of the raw and auxiliary materials should be visually o...

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Abstract

The invention relates to an organic polymer composite material, in particular to injection molding grade graphite-filled high-temperature nylon and a production process thereof. The injecting molding grade graphite-filled high-temperature nylon consists of the following compositions in percentage by weight: 68 to 97 percent of high-temperature nylon, 0.1 to 2.5 percent of high molecular weight silicone oil, 3 to 35 percent of conductive graphite powder, 0.3 to 1.5 percent of the antioxidant, 0.1 to 2.0 percent of coupling agent and 0.3 to 5.5 percent of other aids. The injection molding grade graphite-filled high-temperature nylon preserves the comprehensive performances of the original high-temperature nylon and has a good self-lubricating property and good abrasion resistance, automatic demolding is realized during injection molding or extrusion of a finished product, and release agent is not required, the procurement and the production of raw materials are convenient, raw and auxiliary materials and production equipment are made in China, and the costs of production and raw materials are greatly reduced, so that the comprehensive competitiveness of the product is improved.

Description

technical field [0001] The invention relates to an organic polymer composite material, more specifically, relates to an injection-grade graphite-filled high-temperature nylon and a manufacturing process thereof. Background technique [0002] At present, the application of replacing natural materials with plastics continues to expand internationally. Scientists around the world are actively looking for new high-performance thermoplastics to replace metal and wood through various experiments. important parts of. [0003] The development of high-temperature-resistant nylon makes it possible to miniaturize, lighten, and strengthen power for industrial, agricultural and civil facilities. High-temperature nylon can bring higher temperature resistance to some parts, or simply replace metal raw materials to produce these parts. There is also a trend to replace metal and thermoset materials with high-temperature nylon for devices and components of new equipment. All of these will ...

Claims

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Application Information

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IPC IPC(8): C08L77/00C08L83/04C08K9/06C08K3/04
Inventor 孙平
Owner KECHUANG POLYMER SUZHOU
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