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Permanent antistatic polypropylene composite material and preparation method thereof

A composite material, polypropylene technology, applied in the field of polypropylene modification, can solve the problems of high cost, poor material mechanical properties, antistatic performance environment dependence and timeliness, etc., to reduce the amount of addition, improve tensile strength and bending modulus effect

Active Publication Date: 2020-01-24
WANHUA CHEMICAL (NINGBO) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a permanent antistatic polypropylene composite material and its preparation method, which solves the problems that the antistatic performance of existing polypropylene materials has environmental dependence, timeliness, poor material mechanical properties, and high cost

Method used

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  • Permanent antistatic polypropylene composite material and preparation method thereof
  • Permanent antistatic polypropylene composite material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0045] (1) Mix 150g of wollastonite W625 and 450mL of deionized water, add 3.0g of polyethylene glycol, stir well in a constant temperature water bath at 90°C, and set aside; slowly drop 20% of wollastonite into the suspension Hydrochloric acid solution, control the pH value to 2, let stand, react for 5 hours, wash with water three times, and dry at 120°C to obtain acid-treated wollastonite. Dissolve 5.0g of epoxy resin in 200mL of acetone, pour it into a beaker filled with 150g of acid-treated wollastonite, cover it with wollastonite powder, let it stand, and react for 4 hours, then dry it at 120°C and dry it at 700°C In a tube furnace, carbonize for 5 hours under a nitrogen atmosphere to obtain a carbon / wollastonite composite material.

[0046] (2) Take 100 g of superconducting carbon black AX-015 and 500 mL of nitric acid with a mass fraction of 0.35 in a beaker, stir at room temperature, and after reacting for 5 hours, wash the carbon black with deionized water until the p...

Embodiment 2

[0051] (1) Mix 120g of wollastonite W625 with 400mL of deionized water, add 2.0g of polyethylene glycol, stir well in a constant temperature water bath at 100°C, and set aside; slowly drop 20% of wollastonite into the suspension Hydrochloric acid solution, control the pH value to 3, let stand, react for 4 hours, wash with water three times, and dry at 100°C to obtain acid-treated wollastonite. Dissolve 4.0g of epoxy resin in 160mL of acetone, pour it into a beaker filled with 120g of wollastonite that has been treated with acid, cover it with wollastonite powder, let it stand for 3 hours, and then dry it at 120°C. In a type furnace, carbonize for 4 hours under a nitrogen atmosphere to obtain a carbon / wollastonite composite material.

[0052] (2) Take 80 g of superconducting carbon black AX-015 and 480 mL of nitric acid with a mass fraction of 0.35 in a beaker, stir at room temperature, and after reacting for 4 hours, wash the carbon black with deionized water until the pH valu...

Embodiment 3

[0057] (1) Mix 100g of wollastonite W625 and 350mL of deionized water, add 1.5g of polyethylene glycol, stir well in a constant temperature water bath at 80°C, and set aside; slowly drop 20% of wollastonite into the suspension Hydrochloric acid solution, control the pH value to 2, let stand, react for 3 hours, wash with water 3 times, and dry at 120°C to obtain acid-treated wollastonite. Dissolve 2.5g of epoxy resin in 120mL of acetone, pour it into a beaker filled with 100g of acid-treated wollastonite, cover it with wollastonite powder, let it stand, react for 2 hours and then dry it at 120°C. In a type furnace, carbonize for 3 hours under a nitrogen atmosphere to obtain a carbon / wollastonite composite material.

[0058] (2) Take 70g of superconducting carbon black AX-015 and 450mL of nitric acid with a mass fraction of 0.35 in a beaker, stir at room temperature, and after reacting for 3 hours, wash the carbon black with deionized water until the pH value of the washing solu...

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Abstract

The invention discloses a permanent antistatic polypropylene composite material and a preparation method thereof. The composite material is prepared from raw materials containing the following components: 75-91 parts of polypropylene, 5-15 parts of a carbon / wollastonite composite material, 4-10 parts of oxidized superconducting carbon black, 1-2 parts of a silane coupling agent and 0.1-0.5 part ofan antioxidant. By compounding the superconducting carbon black and the carbon / wollastonite composite material, the scheme is achieved, polypropylene is subjected to antistatic modification, the addition amount of the superconducting carbon black can be reduced, and the influence of the carbon black on mechanical properties of the material can be reduced. The composite material prepared by usingthe method has a permanent antistatic property and can be used in multiple fields such as electronic appliance turnover boxes and new energy vehicles.

Description

technical field [0001] The invention relates to a polypropylene composite material, in particular to a permanent antistatic polypropylene composite material and a preparation method thereof, belonging to the technical field of polypropylene modification. Background technique [0002] As a general-purpose plastic, polypropylene has the advantages of low price and good heat resistance, and is widely used in automobiles, home appliances, office supplies and various electronic appliances. However, as a high insulating material, polypropylene has a surface resistivity as high as 10 16 -10 17 Ω. High resistance leads to the accumulation of electrostatic charge on the surface of the material. During the injection molding, transportation and assembly process of polypropylene parts, it will cause dust accumulation on the surface of the part, affecting the appearance and assembly efficiency of the part; if it is heavy, it will cause electric shock serious consequences of wear, spar...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08K3/34C08K9/02C08K3/04C08K5/134C08K5/526C08K9/06C08K13/06
CPCC08K3/34C08K9/02C08K3/04C08K5/1345C08K5/526C08K9/06C08K13/06C08K2201/001C08L2201/04C08L23/12
Inventor 李旭顾永江徐卓言涂永鑫陆佳伟杨峰
Owner WANHUA CHEMICAL (NINGBO) CO LTD
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