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Graphene three-dimensional printing material with high bending strength

A bending strength, 3D printing technology, applied in the direction of additive processing, can solve the problems of tensile strength, bending strength, notched impact strength, low heat distortion temperature and melt index, etc., and achieve high bending strength and notched impact strength, The effect of high heat distortion temperature and melt index and low price

Inactive Publication Date: 2017-05-10
GUANGXI ZHUMENG SANTI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The invention provides a graphene 3D printing material with high bending strength to solve the problems of low tensile strength, bending strength and notched impact strength, low heat distortion temperature and melting index of existing plastic 3D printing materials

Method used

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  • Graphene three-dimensional printing material with high bending strength

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preparation example Construction

[0076] The preparation method of the described graphene 3D printing material with high bending strength comprises the following steps:

[0077] S1: Purchase two-dimensional graphene raw materials on the market, and prepare primary graphene powder through special treatment;

[0078] S2: Use a hard plastic crusher to initially crush waste plastics, and then use an intermittent stirring plastic washing machine to thoroughly clean the crushed waste plastics to remove surface dirt. After natural drying and selection, selected plastics are obtained;

[0079] S3: Put the selected plastic prepared in step S2 in a nitrogen or dry ice low-temperature pulverizer, pulverize the plastic at a temperature of -90--110°C for 2-3 hours, and obtain 400-600 mesh plastic fine particles after sieving ;

[0080] S4: Add polylactic acid, potassium tripolyphosphate, ethylene glycol butyl ether acetate, and specific synthetic agents to the primary graphene powder prepared in step S1 and the plastic fi...

Embodiment 1

[0093] A graphene 3D printing material with high bending strength, in parts by weight, comprising the following raw materials: 6.6 parts of graphene, 28 parts of waste plastics, 38 parts of polylactic acid, 20 parts of potassium tripolyphosphate, ethylene glycol 24 parts of butyl ether acetate, 16 parts of specific synthetic agent, 8 parts of starch synthetic agent;

[0094] The specific synthetic agent is in parts by weight, including the following raw materials: 18 parts of regulator, 15 parts of generating agent, 13 parts of coupling agent a, 14 parts of compatibilizer, 10 parts of plasticizer, 8 parts of antioxidant, polymer 7 parts of coagulant, 4 parts of terminator, 3 parts of stabilizer a;

[0095] The regulator is ACR;

[0096] The generating agent is an aerosol generating agent;

[0097] The coupling agent a is a silane coupling agent KH550;

[0098] Described compatibilizer is maleic anhydride graft compatibilizer;

[0099] Described plasticizer is two (2-ethylh...

Embodiment 2

[0131] A graphene 3D printing material with high bending strength, in parts by weight, comprising the following raw materials: 5.3 parts of graphene, 26 parts of waste plastics, 34 parts of polylactic acid, 16 parts of potassium tripolyphosphate, ethylene glycol 21 parts of butyl ether acetate, 12 parts of specific synthetic agent, 6 parts of starch synthetic agent;

[0132] The specific synthetic agent is in parts by weight, including the following raw materials: 15 parts of regulator, 12 parts of generating agent, 10 parts of coupling agent a, 12 parts of compatibilizer, 9 parts of plasticizer, 6 parts of antioxidant, polymer 5 parts of coagulant, 3 parts of terminator, 2 parts of stabilizer a;

[0133] The regulator is ACR;

[0134] The generating agent is an aerosol generating agent;

[0135] The coupling agent a is a silane coupling agent KH550;

[0136] Described compatibilizer is maleic anhydride graft compatibilizer;

[0137] Described plasticizer is two (2-ethylhe...

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Abstract

The invention discloses a graphene three-dimensional printing material with high bending strength, and belongs to the technical field of materials for three-dimensional printing. The graphene three-dimensional printing material with high bending strength is prepared from the following raw materials in parts by weight: 5.3 to 7.9 parts of graphene, 26 to 31 parts of waste plastics, 34 to 42 parts of polylactic acid, 16 to 24 parts of potassium tripolyphosphate, 21 to 25 parts of butyl cellosolve acetate, 12 to 19 parts of a specific synthesis agent and 6 to 9 parts of a starch synthesis agent. The graphene three-dimensional printing material prepared in the invention has the characteristics of high tensile strength, high bending strength and high notch impact strength, high heat deflection temperature and high melt index and the like, and the product printed through a three-dimensional printing technology is high in quality, high in impact and high in strength and has a broad market prospect.

Description

[0001] 【Technical field】 [0002] The invention belongs to the technical field of preparation of materials for 3D printing, and in particular relates to a graphene 3D printing material with high bending strength. [0003] 【Background technique】 [0004] 3D printing is a kind of rapid prototyping technology. It is a technology based on digital model files and using bondable materials such as powdered metal or plastic to construct objects by layer-by-layer printing. 3D printing is usually realized by using digital technology material printers. It is often used to manufacture models in mold manufacturing, industrial design and other fields, and is gradually used in the direct manufacturing of some products. There are already parts printed using this technology. , the technology has applications in jewelry, footwear, industrial design, architecture, engineering and construction (AEC), automotive, aerospace, dental and medical industries, education, geographic information systems, c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/04C08L101/00C08L51/00C08L91/00C08L3/04C08K13/02C08K3/04C08K3/32C08K5/103C08K5/544C08K5/12C08K3/16B33Y70/00
CPCC08L67/04B33Y70/00C08L2201/08C08L2205/035
Inventor 覃杨华
Owner GUANGXI ZHUMENG SANTI TECH CO LTD
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