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A graphene-based permanent antistatic plastic masterbatch and its preparation method and permanent antistatic plastic based thereon

A graphene-based, plastic masterbatch technology, applied in the field of permanent anti-static plastics, can solve problems such as inappropriate nano-conductive fillers that are easy to agglomerate, and achieve the effects of simple and efficient preparation methods, wide sources, and avoidance of agglomeration

Active Publication Date: 2021-05-28
西安一九零八新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, in order to uniformly disperse the conductive agent in the matrix, the stirring and mixing method is generally used. This method is more effective for large-particle conductive additives, but it is not suitable for nano-conductive fillers that are easy to agglomerate.

Method used

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  • A graphene-based permanent antistatic plastic masterbatch and its preparation method and permanent antistatic plastic based thereon
  • A graphene-based permanent antistatic plastic masterbatch and its preparation method and permanent antistatic plastic based thereon
  • A graphene-based permanent antistatic plastic masterbatch and its preparation method and permanent antistatic plastic based thereon

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] a) Put copper balls with a diameter of 500 μm and graphite flakes in a mass ratio of 1:1 in a ball mill jar. The ball milling jar was ball milled for 24 hours at a speed of 200 rpm. The surface of the copper ball is evenly coated with flake graphite micro flakes to obtain the mixture A;

[0041] b) Sieve out the copper balls coated with flake graphite flakes from the mixture A, and put them into the ball mill jar at the same time with the low-density polyethylene (LDPE) powder with a diameter of 180 μm at a mass ratio of 80:1. The ball milling jar was ball milled for 24 hours at a speed of 230 rpm. Part of the flaky graphite flakes on the surface of the copper ball are gradually transferred to the surface of the irregular plastic powder LDPE to obtain the mixture B;

[0042] c) Sieve out the plastic powder LDPE coated with flake graphite microflakes from mixture B, which is a kind of flake graphite flake / LDPE antistatic plastic masterbatch, and obtain a graphene-based...

Embodiment 2

[0044] a) Put copper balls with a diameter of 500 μm and graphite flakes in a mass ratio of 1:1 in a ball mill jar. The ball milling jar was ball milled for 24 hours at a speed of 200 rpm. The surface of the copper ball is evenly coated with flake graphite micro flakes to obtain the mixture A;

[0045] b) Sieve out the copper balls coated with flake graphite from the mixture A, and put them into the ball mill jar at the same time with the low-density polyethylene (LDPE) powder with a diameter of 75 μm at a mass ratio of 80:1. The ball milling jar was ball milled for 24 hours at a speed of 230 rpm. Part of the flaky graphite flakes on the surface of the copper ball are gradually transferred to the surface of the irregular plastic powder LDPE to obtain the mixture B;

[0046] c) Sieve out the plastic powder LDPE coated with graphite flakes from the mixture B, which is a graphite flakes / LDPE antistatic plastic masterbatch, which belongs to graphene-based permanent antistatic pl...

Embodiment 3

[0048] a) Put alumina balls with a diameter of 350 μm and isostatic graphite balls with a diameter of 10 mm in a ball mill jar at a mass ratio of 1.5:1. The ball milling jar was ball milled for 12 hours at a speed of 220 rpm. The surface of the alumina ball is uniformly coated with isostatic graphite microflakes to obtain the mixture A;

[0049] b) Sieve the alumina balls coated with isostatic graphite microflakes from the mixture A, and put them into the ball milling tank at the same time with the linear low density polyethylene (LLDPE) powder with a diameter of 180 μm in a mass ratio of 20:1 middle. The ball milling jar was ball milled for 12 hours at a speed of 200 rpm. Part of the isostatic graphite microflakes on the surface of the alumina ball is gradually transferred to the surface of the irregular plastic powder LLDPE to obtain the mixture B;

[0050] c) Sieve out plastic powder LLDPE coated isostatic graphite microflakes from mixture B, which is a kind of isostatic...

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Abstract

The invention discloses a graphene-based permanent antistatic plastic masterbatch, a preparation method and a permanent antistatic plastic based on it, belonging to the technical field of functional material preparation. In the present invention, the surface of the inorganic microball mill is coated with graphene-based microchips through the ball milling of inorganic microball mills and graphene-based raw materials, and then ball milled with plastic powder to obtain plastics coated with graphene-based microchips. Powder, that is, to obtain a graphene-based permanent antistatic plastic masterbatch. The method has the advantages of simple process, low cost and short cycle, and is suitable for industrial production; the graphene-based permanent antistatic plastic masterbatch obtained by the method does not need to use a dispersant and has good product quality. The graphene-based permanent anti-static plastic masterbatch is processed into a permanent anti-static plastic through a flat vulcanization process or an injection molding process. It has high surface resistivity, volume resistivity and good mechanical properties, and the product is stable. Therefore, it has industrial application value.

Description

technical field [0001] The invention belongs to the technical field of preparation of functional materials, and relates to a graphene-based permanent antistatic plastic masterbatch, a preparation method and a permanent antistatic plastic based on it. Background technique [0002] Plastic has been widely used in industry and life at present. After contacting or rubbing with other materials, the surface of plastic will generate static charge. Since most of the plastic matrix is ​​an insulator, the charge cannot be evacuated in time, resulting in the accumulation of static electricity. The accumulation of static electricity on the surface of plastic will not only bring discomfort to people's lives, but also bring trouble and danger to industrial activities. For example, the surface with static electricity is easy to absorb dust, static electricity will interfere with the normal operation of electronic equipment, static electricity will break down expensive and sophisticated el...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/06C08L23/08C08L27/06C08L23/12C08L25/06C08L55/02C08L75/04C08L69/00C08L67/02C08L59/02C08K3/04
CPCC08K2201/001C08L2201/04C08L2207/062C08L2207/066C08K3/042C08L23/06C08L23/08C08L27/06C08L23/12C08L25/06C08L55/02C08L75/04C08L69/00C08L67/02C08L59/02
Inventor 张锦英黄家良赵雪雯成永红
Owner 西安一九零八新能源科技有限公司