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Low-odor, low-emission, high abrasion-resistant and high-temperature-resistant nylon and preparing method thereof

A technology with high temperature resistance and low emission, applied in the polymer field, it can solve the problems affecting the adhesion between the wear-resistant modifier and the high temperature resistant nylon matrix, the mechanical properties of the composite material, the viscosity and density of the composite material, etc. The effect of unaffected processing properties, excellent mechanical properties, and low water absorption

Inactive Publication Date: 2017-03-08
HEFEI GENIUS NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the commonly used materials for wear-resistant modification of high-temperature resistant nylon mainly include graphite, molybdenum disulfide and polytetrafluoroethylene, but the addition of these three materials is generally relatively large, which will bring some defects to high-temperature resistant nylon materials: 1. It will lead to higher viscosity and density of the composite material; second, it will affect the adhesion between the wear-resistant modifier and the high-temperature resistant nylon matrix; third, it will also have a significant impact on the mechanical properties of the composite material, which is not conducive to its application

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] (1) Surface treatment of nano-silicon carbide: add nano-silicon carbide to a mixed solution composed of ammonia water and tetraethyl orthosilicate at a mass ratio of 2:1, and react at 60°C for 6 hours to obtain a mixed solution; Add 0.5% of the coupling agent γ-aminopropyl triethoxysilane to the liquid, react at 70°C for 2 hours, wash with deionized water repeatedly after centrifugation, and finally dry to obtain orthosilicon Nano-silicon carbide surface treated with ethyl acetate and coupling agent composite;

[0032] (2) Preparation of hydrophobic high temperature resistant odor adsorption masterbatch: 49 parts of nylon 6T, 15 parts of hydrophobic diatomaceous earth, 10 parts of hydrophobic activated carbon, 10 parts of acicular zeolite molecular sieve, 10 parts of zinc ricinoleate, polymer quarter 5 parts of ammonium salt grafted nano silica, 5,7-bis-(2,2-dimethylethyl)-3-(3,4-dimethylphenyl)-2-3hydrogen-benzo Add 0.1 part of furanone, 0.4 part of antioxidant H10, a...

Embodiment 2

[0036] (1) Surface treatment of nano-silicon carbide: Add nano-silicon carbide to a mixed solution composed of ammonia water and tetraethyl orthosilicate at a mass ratio of 2:1, and react at 50°C for 8 hours to obtain a mixed solution; The coupling agent γ-aminopropyltriethoxysilane with 1% of the mass of nano-silicon carbide was reacted at 80°C for 2 hours, washed repeatedly with deionized water after centrifugation, and finally dried to obtain ethyl orthosilicate and coupling Nano-silicon carbide with joint agent composite surface treatment;

[0037] (2) Preparation of hydrophobic high temperature resistant odor adsorption masterbatch: 49 parts of nylon 6T, 15 parts of hydrophobic diatomaceous earth, 10 parts of hydrophobic activated carbon, 10 parts of acicular zeolite molecular sieve, 10 parts of zinc ricinoleate, polymer quarter 5 parts of ammonium salt grafted nano silica, 5,7-bis-(2,2-dimethylethyl)-3-(3,4-dimethylphenyl)-2-3hydrogen-benzo Add 0.1 part of furanone, 0.4...

Embodiment 3

[0041](1) Surface treatment of nano-silicon carbide: add nano-silicon carbide to a mixed solution composed of ammonia water and tetraethyl orthosilicate at a mass ratio of 2:1, and react at 80°C for 5 hours to obtain a mixed solution; The 1.5% coupling agent γ-aminopropyltriethoxysilane of nano-silicon carbide mass was reacted at 70°C for 5 hours, washed repeatedly with deionized water after centrifugation, and finally dried to obtain ethyl orthosilicate and coupling Nano-silicon carbide with joint agent composite surface treatment;

[0042] (2) Preparation of hydrophobic high temperature resistant odor adsorption masterbatch: 49 parts of nylon 6T, 15 parts of hydrophobic diatomaceous earth, 10 parts of hydrophobic activated carbon, 10 parts of acicular zeolite molecular sieve, 10 parts of zinc ricinoleate, polymer quarter 5 parts of ammonium salt grafted nano silica, 5,7-bis-(2,2-dimethylethyl)-3-(3,4-dimethylphenyl)-2-3hydrogen-benzo Add 0.1 part of furanone, 0.2 part of co...

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Abstract

The invention relates to low-odor, low-emission, high abrasion-resistant and high-temperature-resistant nylon and a preparing method thereof. The material is prepared by the steps of stirring and mixing 90-98 parts of high-temperature-resistant nylon, 1-5 parts of a hydrophobic high-temperature-resistant odor-adsorption masterbatch, 1-5 parts of surface treated nano silicon carbide, 0.1-0.5 part of a solid lubricant, 0.2-1.0 part of a lubricant and 0.1-1 part of an antioxidant and then carrying out melting extrusion granulation through a twin-screw extruder. Tetraethoxysilane and a coupling agent are used for composite surface treatment of the nano silicon carbide, the dispersity of the nano silicon carbide as a wear-resisting agent in matrix resin is increased, and thus the cohesive property of the wear-resisting agent and the high-temperature-resistant nylon matrix is improved, the prepared high-temperature-resistant nylon has significant improvement in wear resistance; at the same time, with use of the hydrophobic high-temperature-resistant odor-adsorption masterbatch, the product is kept a low-odor characteristic in processing and application processes.

Description

technical field [0001] The invention relates to the technical field of polymers, in particular to a low-odor, low-emission, high-abrasion-resistant and high-temperature-resistant nylon and a preparation method thereof. Background technique [0002] High temperature resistant nylon is a polyamide resin prepared by polycondensation reaction of diamine or dicarboxylic acid with aromatic ring and aliphatic dicarboxylic acid or diamine. It is one of the aromatic polyamides. Due to the introduction of aromatic rings into the main chain of polyamide molecules, the heat resistance and mechanical properties are improved, the water absorption rate is reduced, and there is a more suitable performance / price ratio. It is between general engineering plastic nylon and high temperature resistant engineering plastic polyamide. The resin with high heat resistance between ether ether ketone (PEEK) is more and more used in the fields of machinery and electronics. High temperature resistant nyl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/06C08L27/18C08K13/06C08K9/06C08K9/04C08K3/34C08K3/04C08K7/26C08K3/36C08K5/098C08J3/22
CPCC08L77/06C08J3/226C08J2377/06C08J2477/06C08L27/18C08K13/06C08K9/06C08K9/04C08K3/34C08K3/346C08K3/04C08K7/26C08K3/36C08K5/098
Inventor 杨桂生苏荣锦吕励耘
Owner HEFEI GENIUS NEW MATERIALS
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