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Graphene-modified shell material and preparation method thereof

A technology of graphene modification and shell material, which is applied in the direction of additive processing, etc., and can solve the problem of poor heat dissipation of the laptop shell

Inactive Publication Date: 2017-05-31
广西丰达三维科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The invention provides a graphene-modified shell material and a preparation method thereof to solve the problem of poor heat dissipation performance of the existing notebook computer shell

Method used

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  • Graphene-modified shell material and preparation method thereof

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preparation example Construction

[0054] The preparation method of the shell material of described graphene modification, comprises the following steps:

[0055]S1: crush the PET resin and tris(2,4-di-tert-butylphenyl)phosphite and pass through a 200-300 mesh sieve to obtain mixed resin powder;

[0056] S2: adding a surfactant to the mixed resin powder prepared in step S1, and activating it for 1-1.3 hours at a temperature of 68-72° C. and a rotational speed of 150-180 r / min to prepare an activated mixed resin powder;

[0057] S3: Pulverize the graphene and pass it through a 200-300 mesh sieve to obtain a powder. The obtained powder is under a magnetic field strength of 7000-8200GS, an ultrasonic power of 520-650W, a temperature of 52-56°C, and a rotation speed of 200-300r / min. , stirring for 40-50min to obtain graphene energy powder;

[0058] S4: Under the protection of nitrogen, add the graphene energy powder prepared in step S3, polylactic acid, potassium tripolyphosphate, chloropropyl styrene, maleic anhy...

Embodiment 1

[0067] A graphene-modified shell material, in parts by weight, comprising the following raw materials: 3 parts of graphene, 106 parts of PBT resin, 30 parts of three (2,4-di-tert-butylphenyl) phosphite, poly 65 parts of lactic acid, 52 parts of potassium tripolyphosphate, 15 parts of chloropropyl styrene, 12 parts of maleic anhydride grafted polypropylene, 10 parts of sodium hydroxymethyl cellulose, 5 parts of Kevlar fiber, polyethylene terephthalic acid 4 parts of butylene glycol ester fiber, 1.3 parts of surfactant, 0.6 part of conditioner, 0.4 part of generating agent, 0.6 part of crosslinking agent, 1 part of compatibilizer, 0.7 part of bridging agent, 0.4 part of catalyst, 0.7 part of plasticizer 0.4 parts, 0.4 parts of dispersant, 0.6 parts of tackifier, 1.6 parts of curing agent, 0.4 parts of antioxidant, 0.3 parts of stabilizer, 1.5 parts of anti-aging agent, 2 parts of flame retardant;

[0068] The surfactant is polyoxyethylene-polyoxypropylene copolymer;

[0069] Th...

Embodiment 2

[0095] A graphene-modified shell material, in parts by weight, comprising the following raw materials: 1.6 parts of graphene, 80 parts of PBT resin, 21 parts of three (2,4-di-tert-butylphenyl) phosphite, poly 48 parts of lactic acid, 30 parts of potassium tripolyphosphate, 10 parts of chloropropyl styrene, 12 parts of maleic anhydride grafted polypropylene, 8 parts of sodium hydroxymethyl cellulose, 4 parts of Kevlar fiber, polyethylene terephthalic acid 3 parts of butanediol ester fiber, 1 part of surfactant, 0.4 part of regulator, 0.3 part of generating agent, 0.4 part of crosslinking agent, 0.7 part of compatibilizer, 0.5 part of bridging agent, 0.3 part of catalyst, 0.5 part of plasticizer 0.3 parts, 0.3 parts of dispersant, 0.4 parts of tackifier, 1 part of curing agent, 0.3 parts of antioxidant, 0.2 parts of stabilizer, 1.2 parts of anti-aging agent, 1.8 parts of flame retardant;

[0096] The surfactant is polyoxyethylene-polyoxypropylene copolymer;

[0097] The regulat...

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Abstract

The invention discloses a graphene-modified shell material and a preparation method thereof. Graphene-modified environment-friendly wear-resistant plastic material is prepared from graphene, a PET (polyethylene terephthalate) resin, tri(2,4-di-tert-butylphenyl)phosphite, polylactic acid, potassium tripolyphosphate, chloropropyl styrene, maleic anhydride graft polypropylene, hydroxymethyl cellulose sodium, Kevelar fibers, polybutylene terephthalate fibers, a surfactant, a regulator, propellant, a crosslinking agent, a compatilizer, a bridging agent, a catalyst, a plasticizer, a dispersing agent, a tackifier, a curing agent, an antioxidant, a stabilizer, an antiaging agent and a flame retardant. The preparation method comprises the following steps: pulverizing, activating, mixing, extruding and the like. The heat dissipation property and tensile strength of the graphene-modified shell material are obviously higher than those of the composite materials in the prior art. Meanwhile, the composite material is applicable to 3D printing notebook computer shells.

Description

[0001] 【Technical field】 [0002] The invention belongs to the technical field of material preparation for 3D printing, and in particular relates to a graphene-modified shell material and a preparation method thereof. [0003] 【Background technique】 [0004] 3D printing, also known as rapid prototyping technology, is also called additive manufacturing technology. It does not require traditional tools, fixtures and machine tools, but is based on digital model files, using adhesive materials such as metal powder or plastic Layer printing technology to manufacture objects of any shape. 3D printers can manufacture many items, such as airplanes, pistols, food, human organs, children's toys, etc. 3D printing technology is a major breakthrough in the world's manufacturing technology field in the past 20 years. It is the integration of multidisciplinary technologies such as mechanical engineering, computer technology, numerical control technology, and material science. The most diff...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L67/04C08L51/06C08L1/28C08L77/10C08K13/06C08K9/00C08K3/04C08K3/22C08K5/13C08K5/526B33Y70/00
CPCC08L67/02B33Y70/00C08K2201/003C08L2205/16
Inventor 冯可发
Owner 广西丰达三维科技有限公司
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