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Preparation method of electroconductive polyamide-polyethylene blended alloy material

A technology of alloy materials and polyethylene, which is applied in the field of polymer material preparation, can solve the problems of decreased comprehensive performance and easy moisture absorption, and achieves the effects of less process links, static electricity elimination, and good static electricity

Active Publication Date: 2014-01-15
苏州宇度医疗器械有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the polyamide molecular chain is polar and easy to absorb moisture, resulting in a decline in overall performance

Method used

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  • Preparation method of electroconductive polyamide-polyethylene blended alloy material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A) To prepare pellets, first weigh 90 parts of nylon 66 resin, 38 parts of linear low-density polyethylene, namely polyethylene resin, and β-(3, 4 Epoxycyclohexyl) 1 part of ethyltrimethoxysilane, 44 parts of activated talcum powder as a filler and 14 parts of conductive carbon black as a conductive agent were put into the mixer and mixed for 8 minutes. The speed of the mixer was 1000n / min. Then drop into the anti-oxidant that takes by weight and be two (2,4 di-tert-butylphenyl) pentaerythritol diphosphites 0.4 part, length be 45 parts of alkali-free chopped glass fibers and surface modifier That is 0.8 part of bis stearic acid amide, continue to mix 4min, obtain granulated material;

[0018] B) Material making, put the granulated material obtained in step A) into a parallel twin-screw extruder to melt and extrude, after cooling and pelletizing, a conductive polyamide-polyethylene blended alloy material is obtained, wherein the parallel twin-screw extruder The extr...

Embodiment 2

[0020] A) To prepare granulated materials, first weigh 95 parts of nylon 66 resin, 42 parts of linear low-density polyethylene, namely polyethylene resin, and β-(3, 4 Epoxycyclohexyl) 1.5 parts of ethyltrimethoxysilane, 32 parts of activated talcum powder as a filler, and 9 parts of conductive carbon black as a conductive agent were put into the mixer and mixed for 8 minutes. The speed of the mixer was 1000n / min. 0.6 parts of bis(2,4 di-tert-butylphenyl) pentaerythritol diphosphite, 40 parts of alkali-free chopped glass fibers and a surface modifier of 3mm in length are dropped into the anti-oxidant taken in parts by weight. That is, 1 part of bis stearic acid amide, and continue mixing for 4 minutes to obtain granulated material. All the other are the same as the description to embodiment 1.

Embodiment 3

[0022] A) To prepare pellets, first weigh 105 parts of nylon 66 resin, 36 parts of linear low-density polyethylene, namely polyethylene resin, and β-(3, 4 Epoxycyclohexyl) 1.9 parts of ethyltrimethoxysilane, 36 parts of activated talc powder as a filler and 11 parts of conductive carbon black as a conductive agent were put into the mixer and mixed for 8 minutes. The speed of the mixer was 1000n / min. 0.9 parts of bis(2,4 di-tert-butylphenyl) pentaerythritol diphosphite, 48 parts of alkali-free chopped glass fibers and a surface modifier of 3mm in length are dropped into the antioxidant that weighs again That is, 1.2 parts of bis stearic acid amide, and continue mixing for 4 minutes to obtain granulated material. All the other are the same as the description to embodiment 1.

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Abstract

Belonging to the technical field of high polymer material preparation, the invention provides a preparation method of an electroconductive polyamide-polyethylene blended alloy material. The method comprises the steps of: firstly, putting 90-105 parts of nylon 66 resin, 31-38 parts of polyethylene resin, 0.9-1.9 parts of a coupling agent, 32-41 parts of a filling material and 9-14 parts of an electroconductive agent that are weighed by weight into a high-speed mixer for mixing them uniformly, then putting 0.4-0.9 part of an antioxidant, 40-51 parts of a glass fiber and 0.8-1.4 parts of a surface modifier that are weighed by weight into the high-speed mixer for further mixing so as to obtain a granulation material; and putting the granulation material into a twin-screw extruder for melt extrusion, and controlling the temperature of zone one of the screw extruder at 230DEG C, the temperatures of zone two and zone three at 240DEG C respectively, and the temperatures from zone four to zone eight all at 250DEG C, thus obtaining the electroconductive polyamide-polyethylene blended alloy material. The method of the invention has less technological links and can meet the requirements of industrialized mass production. The material prepared by the method of the invention has a good static electricity elimination function, thus being suitable for preparation of components of buildings, electrical appliances and automobiles.

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 alloy material blended with conductive polyamide and polyethylene. Background technique [0002] Polyamide materials have the characteristics of wear resistance, self-lubrication, and excellent mechanical properties, so they are widely used in construction, electrical appliances, automobiles and other fields. However, the polyamide molecular chain is polar and easy to absorb moisture, resulting in a decline in overall performance. Polyethylene has low molecular polarity and is not easy to absorb moisture. It is an ideal moisture-proof material. Therefore, after blending polyamide and polyethylene with a reasonable formula and preparation method, it produces a polyamide with low moisture absorption and conductivity that can eliminate static electricity. The alloy material blended with amide and polyethylene has positive ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L77/06C08L23/08C08K13/06C08K9/00C08K7/14C08K3/34C08K3/04C08K5/526C08K5/20B29C47/92B29C48/92
CPCB29C48/40B29C48/875B29C48/92B29C2948/92704B29C2948/92895
Inventor 陶渭清沈兴元颜卫峰陶立强
Owner 苏州宇度医疗器械有限责任公司
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