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Graphene 3D printing material with high melt index

A high melt index, 3D printing technology, used in additive processing and other directions, can solve the problems of low thermal deformation temperature and melt index, tensile strength, bending strength, notch impact strength, etc., and achieve high thermal deformation temperature and melt index. , flexural strength and notched impact strength, the effect of a wide range of sources

Inactive Publication Date: 2017-04-19
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 a high melting index to solve the problems of low tensile strength, bending strength and notched impact strength, low heat distortion temperature and melting index of the existing plastic 3D printing materials

Method used

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  • Graphene 3D printing material with high melt index

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preparation example Construction

[0076] The preparation method of the described graphene 3D printing material with high melt index 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, sodium hexapolyphosphate, propylene glycol methyl ether acetate, and specific synthetic agents to the primary graphene powder obtained in step S1 and the fine plastic par...

Embodiment 1

[0093] A graphene 3D printing material with a high melt index, 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 sodium hexapolyphosphate, propylene glycol methyl ether 24 parts of 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-ethylhexyl...

Embodiment 2

[0131] A graphene 3D printing material with a high melt index, in parts by weight, comprising the following raw materials: 5.4 parts of graphene, 25 parts of waste plastics, 35 parts of polylactic acid, 12 parts of sodium hexapolyphosphate, propylene glycol methyl ether 18 parts of acetate, 9 parts of specific synthetic agent, 5 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-ethylhexyl) ...

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Abstract

The invention discloses a graphene 3D printing material with a high melt index and belongs to the technical field of preparation of materials for 3D printing. The graphene 3D printing material with the high melt index contains the following raw materials in parts by weight: 5.4-7.7 parts of graphene, 25-31 parts of waste plastics, 35-40 parts of polylactic acid, 12-23 parts of sodium hexapolyphosphate, 18-24 parts of propylene glycol methyl ether acetate, 9-18 parts of specific synthesizer and 5-9 parts of starch synthesizer. The graphene 3D printing material disclosed by the invention has the characteristics of high tensile strength, flexural strength and notch impact strength, high thermal deformation temperature and melt index, and the like; and products printed through a 3D printing technology are high in quality, high in impact resistance and high in strength, thereby having 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 a high melting index. [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, ci...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/04C08L101/00C08L3/04C08K13/06C08K9/00C08K3/04C08K3/32C08K5/12C08K3/38C08K3/26B33Y70/00
CPCC08L67/04B33Y70/00C08L2201/08C08L2205/035C08L101/00C08L3/04C08K13/06C08K9/00C08K3/04C08K2003/324C08K5/12C08K2003/387C08K2003/262
Inventor 覃杨华
Owner GUANGXI ZHUMENG SANTI TECH CO LTD
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