Self-lubricating abrasion-resistant injection-molding grade nylon 66 and preparation technology thereof

A production process and injection molding-level technology, applied in the field of organic polymer composite materials, can solve the problems of low raw material and production costs, high material cost, and reduced friction coefficient, etc., to achieve reduced raw material costs, reduced production costs, and good self-lubricating properties and the effect of wear resistance

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

However, at present, social technology is developing rapidly, changing with each passing day, and new products and new inventions are pouring out in large numbers. For parts that can effectively and greatly reduce the friction coefficient and the raw materials themselves have strong wear resistance, the many advantages of ordinary nylon 66 make designers very happy. Favored, b

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] Embodiment 1 provides a self-lubricating wear-resistant injection molding grade graphite-filled nylon 66, which is composed of the following components by weight ratio, nylon 66: 69.4%; high molecular weight silicone oil: 2.4%; conductive graphite powder: 25%, antioxidant: 1.0%; heat stabilizer: 1.2%; silane coupling agent: 0.5%; other additives: 0.5%;

[0010] First mix conductive graphite powder and silane coupling agent in proportion at about 50 degrees for ten minutes and then leave it for 6 hours naturally. Dry nylon 66 at 85 degrees for three hours and mix it with high molecular weight silicone oil in a mixer for 10 minutes. Minutes, then weighed with antioxidants, heat stabilizers, and other additives according to the proportion, and mixed in the mixer at low speed for 10 minutes. The effect should be that the various particles and powders are basically uniform without obvious agglomeration or aggregation; the twin-screw extruder uses a 40 aspect ratio, medium-st...

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PUM

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Abstract

The invention relates to an organic polymer composite material, more specifically, in particular to self-lubricating abrasion-resistant injection-molding grade nylon 66 and a preparation technology thereof. The self-lubricating abrasion-resistant injection-molding grade nylon 66 comprises the following components according to weight ratio: 49.5-90% of nylon 66, 1-35% of graphite powder, 0.3-1.5% of antioxidant, 0.1-3.0% of heat stabilizer, 0.1-2.8% of coupling reagent, 0.1-3.0% of HMW (high molecular weight) silicone oil and 0.3-5.5% of other auxiliaries. The self-lubricating abrasion-resistant injection-molding grade nylon 66 provided by the invention has the characteristics of environment friendliness and freeness from halogen; better self-lubrication and abrasion resistance are obtained on a basis of keeping the comprehensive properties of original filled nylon 66; meanwhile, a mold releasing operation is automatically carried out in the process of injection-molding or extruding finished products, so that a releasing agent is unnecessary; and the raw and auxiliary materials as well as production equipment are all domestic, so that the production cost and raw material cost are largely lowered, therefore the comprehensive competitive power of products is well improved.

Description

technical field [0001] The invention relates to an organic polymer composite material, and more specifically relates to a self-lubricating wear-resistant injection molding grade nylon 66 and a manufacturing process thereof. Background technique [0002] Nylon 66 is one of the most widely used engineering plastics. It is widely used to make parts of various machinery, automobiles, chemicals, electronics and electrical devices. It has a high melting point and has good physical and mechanical properties and wear resistance. Sexuality and self-lubrication, especially suitable for high-strength or wear-resistant parts, these comprehensive characteristics are not available in other plastics. However, at present, social technology is developing rapidly, changing with each passing day, and new products and new inventions are pouring out in large numbers. For parts that can effectively and greatly reduce the friction coefficient and the raw materials themselves have strong wear resis...

Claims

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Application Information

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IPC IPC(8): C08L77/06C08K13/06C08K9/00C08K3/04B29B7/28B29B9/06
Inventor 孙平
Owner KECHUANG POLYMER SUZHOU
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