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Preparation method of antibacterial halogen-free flame-retardant nylon alloy material

A technology of flame-retardant nylon and alloy materials, applied in the field of polymer material preparation, which can solve the problems of secondary pollution, poisonous and harmful, etc., and achieve the effect of resisting bacterial erosion and shortening the process steps

Inactive Publication Date: 2012-08-15
CHANGSHU YAMEI MODEL CLOTHES RACK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In order to impart a flame retardant function to nylon, halogen-containing flame retardants are usually added, but nylon containing halogen flame retardants tends to release toxic and harmful gases when burned, especially when a fire occurs, it is easy to cause secondary pollution

Method used

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  • Preparation method of antibacterial halogen-free flame-retardant nylon alloy material

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A) Preparation of granulated materials, weighing 60.2 parts of nylon 66 resin (melting point: 220°C), 30.4 parts of nylon 1010 resin (melting point: 230°C), and 20.3 parts of acrylonitrile-butadiene-styrene copolymer in parts by weight , 0.8 part of vinyl three (beta methoxyethoxy) silanes and 28.1 parts of melamine ammonium polyphosphate, and drop into the high-speed mixer and mix 10min, then drop into 1.2 parts of plastic antibacterial agents of silver ions loaded by parts by weight , 0.4 parts of tetrakis [methyl-β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester, 45 parts of alkali-free chopped glass fibers with a length of 3 mm and distearic acid 0.4 part of amide, and continue mixing for 6 minutes to obtain granulated material;

[0019] B) Granulation, put the granulated material obtained in step A) into a parallel twin-screw extruder for melt extrusion, the extrusion temperature is: 240°C in the first zone, 250°C in the second to fifth zones ...

Embodiment 2

[0021] A) Preparation of granulated material, weighing 62.5 parts of nylon 66 resin (melting point: 220°C), 33.2 parts of nylon 1010 resin (melting point: 230°C), and 25.2 parts of acrylonitrile-butadiene-styrene copolymer in parts by weight , 1.3 parts of vinyl tris (beta methoxyethoxy) silanes and 30.5 parts of melamine ammonium polyphosphate, and drop into high-speed mixer and mix 8min, then drop into 1.6 parts of plastic antibacterial agent of the silver ion that takes by weight , 0.5 parts of tetrakis[methyl-β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester, 47.2 parts of alkali-free chopped glass fibers with a length of 3 mm and distearic acid Amide 0.6 part, and continue to mix 7min, obtain granulated material;

[0022] B) Granulation, put the granulated material obtained in step A) into a parallel twin-screw extruder for melt extrusion, the extrusion temperature is: 240°C in the first zone, 250°C in the second to fifth zones and 245 in the sixth z...

Embodiment 3

[0024] A) Preparation of granulated material, weighing 64.2 parts of nylon 66 resin (melting point: 220°C), 34.5 parts of nylon 1010 resin (melting point: 230°C), and 28.3 parts of acrylonitrile-butadiene-styrene copolymer in parts by weight , 1.4 parts of vinyl three (beta methoxyethoxyl) silanes and 33.2 parts of melamine ammonium polyphosphate, and drop into high-speed mixer and mix 11min, then drop into 1.8 parts of plastics antibacterial agent of carrying silver ion that takes by weight , 0.7 parts of tetrakis[methyl-β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester, 48.8 parts of alkali-free chopped glass fibers with a length of 3 mm and distearic acid Amide 0.8 part, and continue to mix 4min, obtain granulated material;

[0025] B) Granulation, put the granulated material obtained in step A) into a parallel twin-screw extruder for melt extrusion, the extrusion temperature is: 240°C in the first zone, 250°C in the second to fifth zones and 245 in th...

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Abstract

The invention provides a preparation method of an antibacterial halogen-free flame-retardant nylon alloy material, belonging to the technical field of high polymer material preparation. The method comprises the following steps of: weighing 60-65 parts of nylon 66 resin, 30-35 parts of nylon 1010 resin, 20-30 parts of rubber, 0.8-1.6 parts of coupling agent and 28-35 parts of flame retardant in parts by weight and putting into a high-speed mixer for mixing, then putting 1.2-2 parts of antibacterial agent, 0.4-0.9 parts of oxidation inhibitor, 45-50 parts of chopped glass fiber and 0.3-0.8 parts of surface modifier weighed in parts by weight for continued mixing so as to obtain a granulation material; putting the obtained granulation material into a paralleled twin-screw extruder for melt extrusion, and controlling the extrusion temperature of the paralleled twin-screw extruder to obtain the antibacterial halogen-free flame-retardant nylon alloy material. The antibacterial halogen-free flame-retardant nylon alloy material has the following advantages that: the processing steps are short, the tensile strength is greater than 145 MPa, the flexural strength is greater than 215 MPa, thenotch impact strength of a cantilever beam is greater than 32 kj / m<2>, the melt index is greater than 22 g / 10min, the flame resistance reaches to V-0 (UL-94-1.6mm), and the prepared material can resist the bacteria erosion.

Description

technical field [0001] The invention belongs to the technical field of polymer material preparation, and in particular relates to a preparation method of an antibacterial halogen-free flame-retardant nylon alloy material. Background technique [0002] In order to impart flame retardant function to nylon, halogen-containing flame retardants are usually added, but nylon containing halogen flame retardants tends to release toxic and harmful gases when burned, especially when a fire occurs, it is easy to cause secondary pollution. Therefore, reducing or even avoiding the use of halogen flame retardants in the preparation of nylon materials is beneficial to both environmental protection and the human body. For this reason, the applicant has made beneficial attempts, and the technical solution to be introduced below is based on this premise. Contents of the invention [0003] The task of the present invention is to provide a preparation method of an antibacterial halogen-free f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/06C08L55/02C08K13/04C08K7/14B29B9/06B29C47/92B29C48/92
CPCB29C48/40B29C48/875B29C48/92B29C2948/92704B29C2948/92895
Inventor 叶法冬
Owner CHANGSHU YAMEI MODEL CLOTHES RACK
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