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Graphene modified polypropylene composite material and preparation method thereof

A technology of graphene modification and composite material, applied in the field of graphene modified polypropylene composite material and its preparation

Inactive Publication Date: 2021-03-09
桃江县缘湘聚文化传媒有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is still room for improvement in its performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The graphene-modified polypropylene composite material in this embodiment is made of the following raw materials in parts by weight: 100 parts of PP, 5 parts of graphene, 5 parts of calcium sulfate whiskers, 20 parts of SBS, 15 parts of EVA, 0.1 part of DVB, benzene 1 part of hydrazide, 1 part of titanate coupling agent.

[0020] Preparation:

[0021] (1) Add calcium sulfate whiskers and titanate coupling agent to a high-speed mixer and mix for 10 minutes to obtain modified calcium sulfate whiskers; modified calcium sulfate whiskers have an aspect ratio of 24 and an average diameter of 2.8 microns;

[0022] (2) Add the graphene, polypropylene, styrene-butadiene block copolymer, ethylene-vinyl acetate copolymer, divinylbenzene, and benzohydrazide into a high-speed mixer, and mix at 60°C 7min to obtain a mixture of graphene, polypropylene, styrene-butadiene block copolymer, ethylene-vinyl acetate copolymer, divinylbenzene, benzohydrazine and modified calcium sulfate whis...

Embodiment 2

[0026] The graphene-modified polypropylene composite material in this embodiment is made of the following raw materials in parts by weight: 100 parts of PP, 5 parts of graphene, 5 parts of calcium sulfate whiskers, 20 parts of SBS, 20 parts of EVA, 0.1 part of DVB, Benzene 1 part of hydrazide, 0.5 part of titanate coupling agent.

[0027] Preparation:

[0028] (1) Add calcium sulfate whiskers and titanate coupling agent to a high-speed mixer and mix for 10 minutes to obtain modified calcium sulfate whiskers; modified calcium sulfate whiskers have an aspect ratio of 25 and an average diameter of 2.8 microns;

[0029] (2) Add the graphene, polypropylene, styrene-butadiene block copolymer, ethylene-vinyl acetate copolymer, divinylbenzene, and benzohydrazide into a high-speed mixer, and mix at 60°C 7min to obtain a mixture of graphene, polypropylene, styrene-butadiene block copolymer, ethylene-vinyl acetate copolymer, divinylbenzene, benzohydrazine and modified calcium sulfate wh...

Embodiment 3

[0033] In this embodiment, the graphene-modified polypropylene composite material is made of the following raw materials in parts by weight: 100 parts of PP, 5 parts of graphene, 6 parts of calcium sulfate whiskers, 10 parts of SBS, 15 parts of EVA, 0.1 part of DVB, benzoyl 1 part of hydrazine, 1 part of titanate coupling agent.

[0034] Preparation:

[0035] (1) Add calcium sulfate whiskers and titanate coupling agent to a high-speed mixer and mix for 10 minutes to obtain modified calcium sulfate whiskers; modified calcium sulfate whiskers have an aspect ratio of 25 and an average diameter of 3 microns;

[0036] (2) Add the graphene, polypropylene, styrene-butadiene block copolymer, ethylene-vinyl acetate copolymer, divinylbenzene, and benzohydrazide into a high-speed mixer, and mix at 60°C 7min to obtain a mixture of graphene, polypropylene, styrene-butadiene block copolymer, ethylene-vinyl acetate copolymer, divinylbenzene, benzohydrazine and modified calcium sulfate whisk...

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Abstract

The invention discloses a graphene modified polypropylene composite material and a preparation method thereof. The graphene modified polypropylene composite material is mainly prepared from the following raw materials in parts by weight: 100 parts of polypropylene, 5-6 parts of graphene, 5-6 parts of calcium sulfate whiskers, 10-20 parts of a styrene-butadiene segmented copolymer, 10-20 parts of an ethylene-vinyl acetate copolymer, 0.1-0.3 part of divinyl benzene, 0.5-2 parts of benzoyl hydrazine, and 0.5-1.5 parts of a titanate coupling agent. The invention further discloses the preparation method of the graphene modified polypropylene composite material. The graphene modified polypropylene composite material disclosed by the invention is particularly suitable for manufacturing various electric appliance shells with high requirements on high strength due to high crystallization rate, high impact strength and good toughness.

Description

technical field [0001] The invention relates to a polypropylene composite material and a preparation method thereof, in particular to a graphene-modified polypropylene composite material and a preparation method thereof. Background technique [0002] Polypropylene (PP) is one of the most widely used general-purpose plastics in the world. It has the advantages of low density, good chemical corrosion resistance, insect resistance, low price, and excellent comprehensive physical and mechanical properties. However, the polypropylene currently on the market has high molding shrinkage, high brittleness, and low notched impact strength, especially at low temperatures, which greatly limits the further promotion and application of polypropylene. Therefore, the strengthening and toughening modification of PP has been extensively and deeply studied at home and abroad. But its performance still has room for improvement. Contents of the invention [0003] The technical problem to be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L53/02C08L23/08C08K13/06C08K9/04C08K3/04C08K7/08
CPCC08K2201/003C08K2201/016C08L23/12C08L2203/20C08L2205/03C08L53/02C08L23/0853C08K13/06C08K9/04C08K3/042C08K7/08
Inventor 不公告发明人
Owner 桃江县缘湘聚文化传媒有限责任公司
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