Antistatic low-VOC (volatile organic compound) polyamide 6 composite material and method for preparing same
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A composite material and polyamide technology, applied in the field of antistatic low-VOC polyamide 6 composite material and its preparation, can solve the problem of high VOC and achieve the effect of reducing VOC value
Active Publication Date: 2017-03-08
ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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[0004] The purpose of the present invention is to provide a kind of antistatic low VOC polyamide 6 composite material and preparation method thereof, to solve the high VOC problem of the PA6 composite material of prior art
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preparation example 1
[0040] The preparation method of described adsorption masterbatch, comprises the following steps:
[0041] 1) Fully mix polypropylene and mica according to the proportioning ratio, and extrude polypropylene pre-expanded particles in the extruder; the mass ratio of polypropylene and mica is 40:6;
[0042] 2) with n-heptane as blowing agent, the polypropylene pre-expanded particles prepared in step 1) are foamed to obtain expanded polypropylene; the mass ratio of said n-heptane to polypropylene pre-expanded particles is 50:60;
[0043] 3) Mix foamed polypropylene and water in a high-speed mixer for 5-10 minutes to prepare adsorption masterbatch.
preparation example 2
[0045] The preparation method of described adsorption masterbatch, comprises the following steps:
[0046] 1) Fully mix polypropylene and mica according to the proportioning ratio, and extrude polypropylene pre-expanded particles in the extruder; the mass ratio of polypropylene and mica is 40:10;
[0047] 2) take n-heptane as blowing agent, the polypropylene pre-expanded particle that step 1) is obtained is foamed, makes expanded polypropylene; The mass ratio of described n-heptane and polypropylene pre-expanded particle is 50:80;
[0048] 3) Mix foamed polypropylene and water in a high-speed mixer for 5-10 minutes to prepare adsorption masterbatch.
preparation example 3
[0050] The preparation method of described adsorption masterbatch, comprises the following steps:
[0051] 1) Fully mix polypropylene and mica according to the proportion, and extrude polypropylene pre-expanded particles in the extruder; the mass ratio of polypropylene and mica is 40:8;
[0052] 2) with n-heptane as blowing agent, the polypropylene pre-expanded particles prepared in step 1) are foamed to obtain expanded polypropylene; the mass ratio of said n-heptane to polypropylene pre-expanded particles is 50:70;
[0053] 3) Mix foamed polypropylene and water in a high-speed mixer for 5-10 minutes to prepare adsorption masterbatch.
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Abstract
The invention relates to an antistatic low-VOC (volatile organic compound) polyamide 6 composite material. The antistatic low-VOC polyamide 6 composite material comprises, by weight, 60-80 parts of PA6, 1-5 parts of adsorption master batch, 0.1-0.5 part of antioxidants, 0.4-0.8 part of lubricants and 16-24 parts of treated graphene oxide. The adsorption master batch comprises polypropylene and mica. According to the technical scheme, the antistatic low-VOC polyamide 6 composite material has the advantages that appropriate long-chain alkane is grafted on the surfaces of the antistatic low-VOC polyamide 6 composite material in chemical bonding modes by the aid of oxygen-containing functional groups on the surfaces of the graphene oxide, agglomeration of graphene can be effectively prevented by the long-chain alkane, and accordingly the graphene can be effectively dispersed in the antistatic low-VOC PA 6 composite material; diversified volatile small-molecular and organic compounds generated in processing procedures can be effectively removed by the added adsorption master batch, and accordingly VOC numerical values can be lowered.
Description
technical field [0001] The invention belongs to the technical field of polymer materials, in particular to an antistatic low-VOC polyamide 6 composite material and a preparation method thereof. Background technique [0002] Polyamide 6 (PA6) is an important thermoplastic polymer with good dimensional stability, good insulation and oil resistance. It is widely used in household appliances, mechanical parts, office supplies and communication equipment and other fields. With the improvement of people's living standards, there are higher and higher requirements for the materials used. In some special fields, such as automotive materials, the antistatic performance and VOC (volatile organic compound) performance of PA6 have certain degree requirements. [0003] The poor VOC performance of PA6 composite materials is as follows: First, there are many small molecular impurities in the PA6 raw material during the synthesis process, which will lead to an increase in the VOC value; se...
Claims
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