Anti-static alloy composite material and preparation method thereof

A composite material and anti-static technology, which is applied in the field of preparation of anti-static alloy composite materials and anti-static alloy composite materials, to achieve the effect of low warpage and good conductivity

Active Publication Date: 2012-08-22
ZHEJIANG SANWEI ANTI ELECTROSTATIC EQUIP
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0018] The technical problem solved by the present invention is that in the prior art, when PP, LLDPE, and elastomer are added to each other, the product cannot have good warpage, low temperature re

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  • Anti-static alloy composite material and preparation method thereof
  • Anti-static alloy composite material and preparation method thereof

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[0049] The technical solutions and beneficial effects of the present invention will be further described below in conjunction with specific embodiments.

[0050] The present invention uses LLDPE, elastomers, and inorganic fillers to modify PP. PP and LLDPE in PP / LLDPE are crystallized separately. LLDPE can refine the spherulites of PP. When LLDPE is within the scope of the present invention, it will form The interpenetrating network structure makes the material more tough and improves the cold resistance of the material. At the same time, because both are crystalline polymers, the addition of LLDPE has little effect on the heat resistance of the product. Because the crystallization speed of LLDPE is about 3 times that of PP, the crystallization of PP / LLDPE is fast. When the amount of LLDPE added is within the scope of the present invention, the post-shrinkage deformation of the product is small, thereby reducing the warpage of the product; Adding elastomer, the elastomer forms a...

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Abstract

The invention discloses an anti-static alloy composite material and belongs to the technical field of high polymer materials. The anti-static alloy composite material comprises the following components of, by weight, 100 parts of polypropylene (PP)/ linear low density polyethylene (LLDPE), 3-7 parts of elastomers, 10-60 parts of inorganic fillers, 5-15 parts of conducting materials, 3-10 parts of dispersing agents and 0.1-1.0 parts of coupling agents, wherein the PP is 30-70 parts. The invention further discloses a preparation method of the anti-static alloy composite material, which includes the following steps of mixing the PP, the LLDPE, the elastomers, the inorganic fillers, the dispersing agents and the coupling agents in a mixer, and adding the mixtures into a hopper of an extruder; adding the conducting materials into a feed barrel of the extruder form a side feeding port of the feed barrel of the extruder; subjecting the mixtures to plasticization, vacuum-pumping exhausting, extruding, cooling and granule-cutting, and obtaining the anti-static alloy composite material. According to the anti-static alloy composite material and the preparation method thereof, the problems that prepared products are not provided with performances of warpage prevention, low temperature resistance and anti-stativity on the premise of having basic mechanical properties and heat resistance when the PP, the LLDPE and the elastomers are mutually added in prior art are solved.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to an antistatic alloy composite material, and also relates to a preparation method of the antistatic alloy composite material. Background technique [0002] Polypropylene (PP) has good heat resistance and high rigidity. It has high strength and good fluidity, and is easy to form, but it has poor cold resistance, weather resistance, low temperature toughness and antistatic performance, slow crystallization speed, and is easy to deform and warp. Through modification, using methods such as alloying, strengthening, toughening, filling, etc., the PP material can not only maintain its own advantages, but also overcome its shortcomings, so as to make it high performance, engineering and functional, and then expand the PP material. The scope of application of the material. [0003] In practical applications, according to the different uses of materials, PP materials often need ...

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Application Information

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IPC IPC(8): C08L23/12C08L23/08C08L53/02C08K13/04C08K7/14C08K3/04C08K3/34C08K3/26C08K7/28B29B9/06B29C47/92B29C48/92
CPCB29C48/04
Inventor 庄晓荣庄载荣周坤鲁
Owner ZHEJIANG SANWEI ANTI ELECTROSTATIC EQUIP
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