A kind of antistatic polypropylene foam sheet

A foamed sheet, polypropylene technology, applied in coating and other directions, can solve the problems of decreased mechanical properties of materials, high equipment costs and high material costs, and achieve the effects of maintaining mechanical properties, reducing crystallization defects, and being convenient and simple to manufacture.

Active Publication Date: 2018-11-27
JIN BAOLI TECH SUZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing methods have problems such as the addition of a large number of antistatic fillers, which greatly reduces the mechanical properties of the material, and the cost of equipment and materials is too high.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Mix 660g of liquid epoxy resin, 180g of maleic anhydride, 110g of dimethyl phosphate, 100g of tetramethylsilicate, and 300g of acrylamide to obtain a modified glue. 880g homopolypropylene, 70g antistatic agent (conductive carbon black mixed with 12wt% acrylamide), 120g filler (silicon dioxide and barium sulfate with a mass ratio of 1), and 100g AC foaming agent were added to the extruder, at 220 ℃, extruding to prepare the primary sheet; then coating the modified glue on both sides of the primary sheet, and drying at 160°C for 15 minutes to obtain an antistatic polypropylene foam sheet; the thickness of the modified glue is 180 microns. The bending strength is 48.4Mpa; the surface resistivity is 10 8 Ω.

Embodiment 2

[0016] Mix 660g of liquid epoxy resin, 180g of maleic anhydride, 110g of dimethyl phosphate, 100g of tetramethylsilicate, and 300g of acrylamide to obtain a modified glue. 880g homopolypropylene, 70g antistatic agent (conductive carbon black mixed with 12wt% acrylamide), 120g filler (silicon dioxide and barium sulfate with a mass ratio of 1), and 100g AC foaming agent were added to the extruder, at 220 ℃, extruding to prepare the primary sheet; then coating the modified glue on both sides of the primary sheet, and drying at 180°C for 15 minutes to obtain an antistatic polypropylene foam sheet; the thickness of the modified glue is 180 microns. The bending strength is 48.2Mpa; the surface resistivity is 10 8 Ω.

Embodiment 3

[0018] Mix 660g of liquid epoxy resin, 180g of maleic anhydride, 110g of dimethyl phosphate, 100g of tetramethylsilicate, and 300g of acrylamide to obtain a modified glue. 880g homopolypropylene, 70g antistatic agent (conductive carbon black mixed with 12wt% acrylamide), 120g filler (silicon dioxide and barium sulfate with a mass ratio of 1), and 100g AC foaming agent were added to the extruder, at 220 ℃, extruding to prepare the primary sheet; then coating the modified glue on both sides of the primary sheet, and drying at 160°C for 20 minutes to obtain an antistatic polypropylene foam sheet; the thickness of the modified glue is 180 microns. The bending strength is 48.3Mpa; the surface resistivity is 10 8 Ω.

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Abstract

The invention discloses an antistatic polypropylene foamed sheet. The preparation of the antistatic polypropylene foamed sheet comprises the following steps: adding homo-polypropylene, an antistatic agent, a filling material and a foaming agent into a plastic extruding machine, and preparing a sheet primary product through extrusion at 220-250 DEG C; afterwards, coating two surfaces of the sheet primary product with modified glue, drying the sheet primary product at 160-180 DEG C for 15-20 minutes, and obtaining the antistatic polypropylene foamed sheet. The modified glue is obtained by mixing epoxy resin, maleic anhydride, dimethyl phosphate, tetramethyl silicate and acrylamide. The antistatic polypropylene foamed sheet is an antistatic polypropylene foam sheet prepared and obtained by adopting the simple plastic extruding machine to carry out melting and extrusion, is convenient and simple to manufacture and is simple and convenient to operate; a produced composite sheet has characteristics of antistatic properties, favorable mechanical properties and the like, and can meet industrial application requirements.

Description

technical field [0001] The invention relates to a composite sheet, in particular to an antistatic polypropylene foam sheet. Background technique [0002] With the continuous acceleration of the development of polymer composite materials, antistatic materials are more and more used in production and life. As a general-purpose plastic widely used in various fields of daily life production, polypropylene has good electrical insulation and high surface resistivity. These properties make polypropylene materials prone to static electricity accumulation during use, which can cause dust collection and spark discharge lamp phenomena. In the fields of flour mills and semiconductor material processing and manufacturing, the requirements for electrostatic protection are particularly high. In order to ensure the safety and reliability of production, it is necessary for the workplace to have good anti-static functions to prevent the occurrence of electrostatic disasters. At present, the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J7/04C09D4/02C09D4/06C09D7/63C08L23/12C08K13/02C08K3/04C08K5/20C08K3/36C08K3/30C08J9/10
CPCC08J7/042C08J9/103C08J2203/04C08J2323/12C08J2451/08C08K3/04C08K3/30C08K3/36C08K5/20C08K13/02C08K2003/3045C08K2201/017C08L2203/14C09D4/06C09D7/63C08L23/12
Inventor 李明华
Owner JIN BAOLI TECH SUZHOU
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