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High-bending-strength rice straw 3D printing material

A technology of rice straw and bending strength, applied in the direction of additive processing, can solve problems such as poor impact resistance and other problems, and achieve the effects of low cost, easy industrial production and broad market prospects

Inactive Publication Date: 2017-04-26
GUANGXI ZHUMENG SANTI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The invention provides a rice straw 3D printing material with high bending strength to solve the problems of existing straw 3D printing consumables such as poor toughness, impact strength and impact resistance.

Method used

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  • High-bending-strength rice straw 3D printing material

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0074] The preparation method of the rice straw 3D printing material with high bending strength comprises the following steps:

[0075] S1: crush the selected straw and pass it through a sieve of 80-100 mesh to obtain a powder. The powder is dried at 83-94° C. for 2-3 hours, and the moisture content is controlled below 0.05%, so as to obtain the primary raw material rice straw powder;

[0076] S2: Add polylactic acid, potassium hexapolyphosphate, diethylene glycol butyl ether acetate, polypropylene resin, styrene-butadiene rubber, and specific synthetic agents to the primary raw material rice straw powder prepared in step S1, and heat up to 192-204°C , stirred and melted at a rotation speed of 100-300r / min for 2.1-4.3h, and then cooled to room temperature to obtain a modified straw 3D printing secondary material;

[0077] The preparation method of described specific synthetic agent, comprises the following steps:

[0078] S21: Mix the generator, coupling agent a, compatibiliz...

Embodiment 1

[0089] A rice straw 3D printing material with high bending strength, including the following raw materials in parts by weight: 100 parts of rice straw powder, 35 parts of polylactic acid, 12 parts of potassium hexapolyphosphate, and 13 parts of diethylene glycol butyl ether acetate , 11 parts of polypropylene resin, 4 parts of styrene-butadiene rubber, 20 parts of specific synthetic agent, 10 parts of starch synthetic agent;

[0090] The specific synthetic agent is in parts by weight, including the following raw materials: 16 parts of regulator, 14 parts of generating agent, 12 parts of coupling agent a, 3 parts of surfactant, 14 parts of compatibilizer, 12 parts of plasticizer a , 10 parts of antioxidant, 7 parts of coagulant, 5 parts of terminator;

[0091] The regulator is regulator ACR;

[0092] The generating agent is an aerosol generating agent;

[0093] The coupling agent a is coupling agent kh570;

[0094] Surfactant is fatty alcohol polyoxyethylene ether sodium sul...

Embodiment 2

[0125] A rice straw 3D printing material with high bending strength, including the following raw materials in parts by weight: 72 parts of rice straw powder, 29 parts of polylactic acid, 10 parts of potassium hexapolyphosphate, and 11 parts of diethylene glycol butyl ether acetate , 9 parts of polypropylene resin, 3 parts of styrene-butadiene rubber, 15 parts of specific synthetic agent, 6 parts of starch synthetic agent;

[0126] The specific synthetic agent is in parts by weight, including the following raw materials: 13 parts of regulator, 10 parts of generating agent, 9 parts of coupling agent a, 2 parts of surfactant, 13 parts of compatibilizer, 8 parts of plasticizer a , 8 parts of antioxidant, 6 parts of coagulant, 4 parts of terminator;

[0127] The regulator is regulator ACR;

[0128] The generating agent is an aerosol generating agent;

[0129] The coupling agent a is coupling agent kh570;

[0130] Surfactant is fatty alcohol polyoxyethylene ether sodium sulfate; ...

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Abstract

The invention belongs to the technical field of 3D printing material preparation and discloses a high-bending-strength rice straw 3D printing material. The high-bending-strength rice straw 3D printing material is prepared from, by weight, 72-116 parts of rice straw powder, 29-45 parts of polylactic acid, 10-14 parts of potassium hexaphoshpate, 11-15 parts of diethylene glycol butylether acetate, 9-12 parts of polypropylene resin, 3-5 parts of butadiene styrene rubber, 15-24 parts of a specific synthesis agent and 6-13 parts of a starch synthesis agent. The high-bending-strength rice straw 3D printing material is high in toughness and impact strength; products printed by means of 3D printing have advantages of high quality, high impact resistance, high strength, nontoxicity, low carbon, environment friendliness, low cost, wood color, recyclability, high economic value and promising market prospect.

Description

[0001] 【Technical field】 [0002] The invention belongs to the technical field of material preparation for 3D printing, and in particular relates to a rice straw 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 crop straw 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, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L97/02C08L67/04C08L3/04C08K13/02C08K3/32C08K3/26C08K5/11C08K5/5419C08B31/00B33Y70/00
CPCC08L97/02B33Y70/00C08B31/003C08L2205/035C08L67/04C08L3/04C08K13/02C08K2003/324C08K2003/262C08K5/11C08K5/5419
Inventor 覃杨华
Owner GUANGXI ZHUMENG SANTI TECH CO LTD
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