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High-performance nylon for sieve plate of coal washer and preparation method of high-performance nylon

A high-performance, coal washing machine technology, applied in the field of polymer materials, can solve the problems of low notched impact strength, high molding shrinkage, and poor dimensional stability, and achieve good dimensional stability, small molding shrinkage, and low water absorption. Effect

Inactive Publication Date: 2014-04-30
青岛中科菲力工程技术研发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, nylon still has the disadvantages of strong water absorption, low notched impact strength, poor dimensional stability, and high molding shrinkage, which limits its application in coal washing machine sieve plates.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] A kind of high-performance nylon for coal washing machine sieve plate, made of the following raw materials in weight (kg): nylon 66 60, polyoxymethylene 25, polytetrafluoroethylene 15, ethylene-acrylate-glycidyl methacrylate terpolymer 18. Dicumyl peroxide 3. Zinc stearate 1. Calcium stearate 1. Pentaerythritol stearate 2. Dibutyl maleate 8. Dioctyl sebacate 12. Hydroxide Magnesium 10, Zinc Borate 7, Active Calcium Carbonate 12, Composite Filler 6, Antioxidant 1010 1.5, Antioxidant DLTP 1.

[0013] The preparation method of the composite filler is as follows: Weigh kaolin, olivine, and tourmaline in a ratio of 5:3:1 by weight, mix them evenly, calcinate at 680°C for 2 hours, cool to room temperature, add 15% hydrochloric acid solution and soak 1h, take it out, wash it with distilled water until it is neutral, dry it, calcinate at 850°C for 1h, crush it, and pass it through a 300-mesh sieve; add 4% epoxy soybean oil, 3% pentaerythritol stearate, 1 % vinyl tris(β-m...

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Abstract

The invention discloses high-performance nylon for a sieve plate of a coal washer and a preparation method of the high-performance nylon. The high-performance nylon is prepared from the following raw materials in parts by weight: 50-60 parts of nylon 66, 20-30 parts of polyformaldehyde, 10-15 parts of polytetrafluoroethylene, 15-20 parts of ethylene-acrylate-glycidyl methacrylate terpolymer, 2-4 parts of dicumyl peroxide, 1-2 parts of zinc stearate, 1-2 parts of calcium stearate, 2-3 parts of pentaerythritol stearate, 5-10 parts of di-n-butyl maleate, 10-15 parts of dioctyl sebacate, 8-12 parts of magnesium hydroxide, 5-10 parts of zinc borate, 10-15 parts of activated calcium carbonate, 4-8 parts of a composite filling material, 1-2 parts of an antioxidant 1010 and 1-2 parts of an antioxidant DLTP. The nylon material prepared by the preparation method disclosed by the invention is excellent in comprehensive performance, has very high impact ductility and mechanical strength, is low in water absorption rate, small in molding shrinkage rate, good in dimensional stability and wide in usage temperature, has excellent performances of high-low-temperature resistance, solvent resistance, wear resistance, corrosion resistance, water resistance, fatigue resistance and the like, and completely meets performance requirements of the nylon for the sieve plate of the coal washer.

Description

technical field [0001] The invention relates to a high-performance nylon used for a sieve plate of a coal washing machine and a preparation method thereof, belonging to the field of polymer materials. Background technique [0002] Nylon is the first of the five major engineering plastics. It has the advantages of high strength, strong corrosion resistance, wear resistance and good self-lubrication, and is widely used. However, nylon also has the disadvantages of strong water absorption, low notched impact strength, poor dimensional stability, and high molding shrinkage, which limit its application in coal washing machine sieve plates. Contents of the invention [0003] The purpose of the present invention is to provide a kind of high-performance nylon for coal washing machine sieve plate and its preparation method in view of the deficiencies of the prior art. Using polyoxymethylene and polytetrafluoroethylene to compound modified nylon can significantly improve the impact ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/06C08L59/02C08L27/18C08L23/08C08K13/06C08K9/02C08K3/34C08K5/14C08K5/098C08K5/103C08K5/11C08K3/22C08K3/38C08K3/26C08K5/134C08K5/1515C08K5/5425B29B9/06B29C47/92B29C48/92
CPCB29C48/92B29C2948/92561B29C2948/9259B29C2948/92704B29C2948/92876B29C2948/92885B29C2948/92895C08L77/06C08L2201/08C08L2205/035C08L59/02C08L27/18C08L23/0884C08K13/06C08K9/00C08K9/02C08K9/06C08K9/04C08K3/346C08K3/34C08K3/38C08K5/14C08K5/098
Inventor 王胖
Owner 青岛中科菲力工程技术研发有限公司
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