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Conductive polypropylene material and preparation method thereof

A polypropylene material and polypropylene technology are applied in the field of conductive polypropylene materials and their preparation, and achieve the effects of avoiding vacuum opening, reducing elongation at break, and increasing external lubricity.

Inactive Publication Date: 2020-09-04
HEFEI GENIUS NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the general conductive polypropylene material requires its surface resistivity to reach 10 4 Ω or less, but the above-mentioned modified polypropylene material is only a relatively good antistatic material, and its surface resistivity is 10 5 Ω-10 6 Ω, can not meet the needs

Method used

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  • Conductive polypropylene material and preparation method thereof
  • Conductive polypropylene material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] (1) Put 0.2 parts of white oil and 10 parts of calcium carbonate into the high-mixer, and mix at 80-90℃ for 3 minutes;

[0037] (2) Cool the high-mixer to room temperature, add 70 parts of PP, 20 parts of conductive carbon black masterbatch, 0.5 parts of antioxidant 1010, 0.5 parts of antioxidant 168, and 0.2 parts of erucamide; continue mixing for 3 minutes;

[0038] (3) The mixture is added to a twin-screw extruder with a temperature of 180-220°C in each zone for extrusion and granulation to obtain a conductive polypropylene material.

[0039] The performance test results are shown in Table 1.

Embodiment 2

[0041] (1) Put 0.35 parts of polyethylene wax and 20 parts of calcium carbonate into the high-mixer, and mix at 80-90°C for 8 minutes;

[0042] (2) Cool the high-mixer to room temperature, add 20 parts of PP, 60 parts of conductive carbon black masterbatch, 1.0 part of antioxidant 1010, 1.0 part of antioxidant 168, and 0.5 part of silicone powder; continue mixing for 8 minutes;

[0043] (3) Add the mixture into a twin-screw extruder with a temperature of 180-220°C in each zone for extrusion granulation to obtain conductive polypropylene material.

[0044] The performance test results are shown in Table 1.

Embodiment 3

[0046] (1) Put 0.5 part of white oil and 30 parts of calcium carbonate into the high mixer, and mix at 80-90℃ for 5min;

[0047] (2) Cool the high-mixer to room temperature, add 20 parts of PP, 50 parts of conductive carbon black masterbatch, 10100.7 parts of antioxidant, 168 0.7 parts of antioxidant, and 0.4 parts of erucamide; continue mixing for 6 minutes;

[0048] (3) The mixture is added to a twin-screw extruder with a temperature of 180-220°C in each zone for extrusion and granulation to obtain a conductive polypropylene material.

[0049] The performance test results are shown in Table 1.

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Abstract

The invention discloses a conductive polypropylene material and a preparation method thereof. The conductive polypropylene material comprises the following components in parts by weight: 20-70 parts of PP; 20 to 60 parts of conductive carbon black master batch; 10 to 20 parts of calcium carbonate; 0.5 to 1.0 part of a main antioxidant; and 0.5 to 1.0 part of an auxiliary antioxidant; the preparation method comprises the following steps: mixing, extruding and granulating the raw materials. Wherein the conductive carbon black masterbatch is prepared from 40 parts of high-pressure low-density polyethylene; 25 parts of a lubricant; and 35 parts of conductive carbon black are internally mixed. The surface resistivity of the prepared conductive polypropylene material can be reduced to 103, and the conductivity of the conductive polypropylene material can be more uniform by using the conductive carbon black master batch.

Description

Technical field [0001] The invention belongs to the technical field of polymer processing, and specifically relates to a conductive polypropylene material and a preparation method thereof. Background technique [0002] Polypropylene (PP) is a crystalline polymer with a regular structure, often white pellets or powder, and is an odorless, non-toxic, and light-weight thermoplastic resin; it has easy processing, impact strength, flexibility and electrical properties. It has the characteristics of good insulation and good chemical resistance. It has a wide range of applications in the automotive industry, household appliances, electronics, packaging, building materials and furniture. Because polypropylene has good chemical resistance, it can be used as a material for electric vehicle batteries, which requires polypropylene to have certain conductivity. [0003] Chinese patent (CN 103739945 B) discloses a conductive polypropylene composite material, which is realized by the following c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L23/06C08L83/04C08K13/06C08K3/04C08K3/26C08K9/04C08K5/20C08J3/22
CPCC08J3/226C08J2323/12C08J2423/06C08K2003/265C08L23/12C08L2207/062C08L23/06C08L83/04C08K13/06C08K3/04C08K3/26C08K9/04C08K5/20
Inventor 杨桂生梁娜宋伟华王华
Owner HEFEI GENIUS NEW MATERIALS
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