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Polyvinyl chloride-graphene composite material and preparation method and application thereof

A composite material, polyvinyl chloride technology, applied in the direction of electrical components, magnetic field/electric field shielding, etc., can solve the problems of poor compatibility, achieve the effects of low-cost preparation, good adsorption, and simplified process operation

Pending Publication Date: 2021-01-22
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention adopts a simple and low-cost preparation process to solve the problem of poor compatibility in the preparation of composite materials from graphene and polyvinyl chloride resin

Method used

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  • Polyvinyl chloride-graphene composite material and preparation method and application thereof
  • Polyvinyl chloride-graphene composite material and preparation method and application thereof
  • Polyvinyl chloride-graphene composite material and preparation method and application thereof

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preparation example Construction

[0036] A preparation method of polyvinyl chloride-graphene composite material, the steps are as follows:

[0037] (1) Preparation of phenyl-dicarboxylate-modified graphene: add graphite powder and phenyl-dicarboxylate plasticizer into a ball mill jar at a mass ratio of 1:3 to 1:5, fix it on a ball mill and Ball milling at a speed of 300-800rpm / min for 10-20 hours to obtain phenyl dicarboxylate-modified graphene;

[0038] (2) By weight, polyvinyl chloride (PVC) resin, phenyl dicarboxylate modified graphene, phenyl dicarboxylate plasticizer, heat stabilizer, lubricant, compatibilizer, processing aid Mix evenly to obtain a mixture; wherein, the weight fraction of raw materials is as follows: 100 parts of polyvinyl chloride resin, 0.5 to 5 parts of phenylenedicarboxylate modified graphene, 20 to 40 parts of phenylenedicarboxylic acid ester plasticizer, heat 1 to 5 parts of stabilizer, 0.5 to 3 parts of lubricant, 1 to 5 parts of compatibilizer, and 0.5 to 3 parts of processing ai...

Embodiment 1

[0048] (1) Graphite powder and dioctyl phthalate (DOP) are packed in a ball mill jar at a mass ratio of 1:3, fixed in a ball mill and ball milled at a speed of 800rpm for 20h to obtain DOP-modified graphene.

[0049] (2) By weight, 100 parts of PVC resin, 1 part of DOP modified graphene, 30 parts of DOP, 2 parts of composite lead salt stabilizer, 0.6 part of paraffin, 2 parts of chlorinated vinyl chloride, methyl methacrylate (MMA 3 parts of ) / acrylate copolymer was added to the torque rheometer, and kneading process was carried out at 165°C and 80 rpm for 5 minutes, so that the powder was melted into a uniform block solid, which was the masterbatch.

[0050] (3) Plasticize the masterbatch on a double-roll mill (the temperature of the front and rear rolls is set to 170°C and 172°C, respectively) for 20 minutes, then heat press it on a flat vulcanizer at 180°C and a pressure of 15MPa for 15 minutes, and then cool it off. The polyvinyl chloride-graphene composite material was ob...

Embodiment 2

[0052] (1) Graphite powder and dioctyl phthalate (DOP) are packed in a ball mill jar at a mass ratio of 1:4, fixed in a ball mill and milled at a speed of 600 rpm for 15 hours to obtain DOP-modified graphene.

[0053] (2) By weight, 100 parts of PVC resin, 2 parts of DOP modified graphene, 30 parts of DOP, 2 parts of composite lead salt stabilizer, 0.6 part of paraffin, 2 parts of chlorinated vinyl chloride, methyl methacrylate (MMA 3 parts of ) / acrylate copolymer was added to the torque rheometer, and kneading process was carried out at 165°C and 80 rpm for 5 minutes, so that the powder was melted into a uniform block solid, which was the masterbatch.

[0054] (3) Plasticize the masterbatch on a double-roll mill (the temperature of the front and rear rolls is set to 170°C and 172°C, respectively) for 20 minutes, then heat press it on a flat vulcanizer at 180°C and a pressure of 15MPa for 15 minutes, and then cool it off. The polyvinyl chloride-graphene composite material was ...

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Abstract

The invention discloses a polyvinyl chloride-graphene composite material and a preparation method and application thereof, and belongs to the technical field of nano material production processes. Thepreparation method comprises the following steps: preparing phenyl dicarboxylate modified graphene, mixing the phenyl dicarboxylate modified graphene with polyvinyl chloride resin and a matching aidto obtain a mixture, and carrying out mixing and molding processes on the mixture to obtain the polyvinyl chloride-graphene composite material. According to the polyvinyl chloride-graphene composite material disclosed by the invention, the phenyl dicarboxylate plasticizer and the graphene have an adsorption effect, and the phenyl dicarboxylate modified graphene and the polyvinyl chloride resin have a compatibilization effect so that the compatibility of a graphene phase and a polyvinyl chloride phase in the composite material is improved. Therefore, the invention discloses a preparation methodwhich is low in cost, free of solvent pollution and simple in process, and the polyvinyl chloride-graphene composite material graphene prepared by the preparation method has good compatibility and further has excellent antistatic performance, physical and mechanical properties and other material properties.

Description

technical field [0001] The invention belongs to the technical field of nanomaterial production technology, and relates to a polyvinyl chloride-graphene composite material and a preparation method and application thereof. Background technique [0002] Polyvinyl chloride (PVC) is widely used in construction, industry, agriculture, home appliances, automobiles, packaging and other fields because of its low price, flame retardancy, chemical corrosion resistance and good insulation performance. Its main products include door and window frames, Pipes, wire insulation sheaths, membrane materials, decorations, furniture, etc. However, PVC also has some shortcomings, such as being easy to charge electrostatically, affecting normal use, and even causing sparks and causing fires. In recent years, the polyvinyl chloride industry is facing problems such as overcapacity and increasing pressure on environmental protection issues. Therefore, improving product quality and developing new pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08K13/06C08K9/04C08K3/04C08K5/12H05K9/00
CPCC08L27/06H05K9/0081C08L2201/04C08L2205/035C08L91/06C08K13/06C08K9/04C08K3/042C08K5/12
Inventor 张文博李思纯卫林峰马建中刘超鲍艳
Owner SHAANXI UNIV OF SCI & TECH
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