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Wood-plastic composite material for 3D printing and preparing method thereof

A wood-plastic composite material, 3D printing technology, applied in the direction of additive processing, etc., can solve the problems of easy deformation, weather resistance, heavy odor, complex and harsh processing conditions, etc., achieve excellent lubricity and fluidity, easy to promote, improve The effect of work efficiency and product qualification rate

Inactive Publication Date: 2017-01-04
东莞市晶谷新材料技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the existing 3D printing consumables are mainly single PLA, ABS, PVA and other materials, but the above materials have their own limitations. The cost of PLA materials is high, and the materials are easy to deform when the temperature is above 55°C, and it is easy to block the nozzle of the equipment. ;ABS material is sensitive to temperature and shear rate, heavy odor, easy to deform and poor weather resistance during processing; while PVA water-soluble material is mainly used for printing support materials, the amount of use is small, and PVA will produce toxic gas when it decomposes
In short, the 3D printing consumables widely used in the market currently have disadvantages such as high price, high energy consumption, complex and demanding processing conditions, difficult molding, and easy material breakage.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment 1: Preparation of wood-plastic composite material

[0027] Raw material weight ratio:

[0028] Polylactic acid, 60 parts; Rice husk powder, 30 parts; Paper pulp, 20 parts; Ultra-high molecular weight polyethylene, 10 parts; Sodium methacrylate, 7 parts; Disodium glycyrrhizinate, 5 parts; parts; coupling agent, 2 parts; lubricant, 2 parts; toughening agent, 2 parts; antioxidant, 1.5 parts. The polylactic acid is polylactic acid with a melt index of 5. The viscosity-average molecular weight of the ultra-high molecular weight polyethylene is 3 million to 5 million. The particle diameter of the rice husk powder is 200-300 mesh; the particle diameter of the hollow microsphere is 600-800 mesh; the particle diameter of the pulp is 200-300 mesh. The coupling agent is titanate. Described lubricant is magnesium stearate. The toughening agent is chlorinated polyethylene. The antioxidant is antioxidant 1010.

[0029] Preparation:

[0030] Step S1, placing the ric...

Embodiment 2

[0036] Embodiment 2: Preparation of wood-plastic composite material

[0037] Raw material weight ratio:

[0038] Polylactic acid, 55 parts; Rice husk powder, 25 parts; Paper pulp, 15 parts; Ultra-high molecular weight polyethylene, 8 parts; Sodium methacrylate, 6 parts; Disodium glycyrrhizinate, 4 parts; 1 part; coupling agent, 1 part; lubricant, 1 part; toughening agent, 1 part; antioxidant, 1 part. The polylactic acid is polylactic acid with a melt index of 5. The viscosity-average molecular weight of the ultra-high molecular weight polyethylene is 3 million to 5 million. The particle diameter of the rice husk powder is 200-300 mesh; the particle diameter of the hollow microsphere is 600-800 mesh; the particle diameter of the pulp is 200-300 mesh. The coupling agent is titanate. Described lubricant is magnesium stearate. The toughening agent is chlorinated polyethylene. The antioxidant is antioxidant 1010.

[0039] Preparation:

[0040] Step S1, placing the rice husk...

Embodiment 3

[0046] Embodiment 3: Preparation of wood-plastic composite material

[0047] Raw material weight ratio:

[0048] Polylactic acid, 65 parts; Rice husk powder, 35 parts; Paper pulp, 25 parts; Ultra-high molecular weight polyethylene, 12 parts; Sodium methacrylate, 8 parts; Disodium glycyrrhizinate, 6 parts; parts; coupling agent, 3 parts; lubricant, 3 parts; toughening agent, 3 parts; antioxidant, 2 parts. The polylactic acid is polylactic acid with a melt index of 5. The viscosity-average molecular weight of the ultra-high molecular weight polyethylene is 3 million to 5 million. The particle diameter of the rice husk powder is 200-300 mesh; the particle diameter of the hollow microsphere is 600-800 mesh; the particle diameter of the pulp is 200-300 mesh. The coupling agent is titanate. Described lubricant is magnesium stearate. The toughening agent is chlorinated polyethylene. The antioxidant is antioxidant 1010.

[0049] Preparation:

[0050] Step S1, placing the rice hu...

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Abstract

The invention discloses a wood-plastic composite material for 3D printing and a preparing method thereof. The wood-plastic composite material is prepared from, by weight, 55-65 parts of polylactic acid, 25-35 parts of rice hull powder, 15-25 parts of paper pulp, 8-12 parts of ultrahigh molecular weight polyethylene, 6-8 parts of sodium methallyl sulfonate, 4-6 parts of disodium glycyrrhizate, 4-6 parts of hollow microspheres, 1-3 parts of coupling agent, 1-3 parts of lubricating agent, 1-3 parts of toughening agent and 1-2 parts of anti-oxidant. The wood-plastic composite material has excellent lubricity and mobility, is good for smooth proceeding of 3D printing, can not block a nozzle of printing equipment, and improves the working efficiency of the equipment and the qualified rate of products. The preparing method can be implemented with conventional equipment without strict requirements for conditions, and is easy to popularize.

Description

technical field [0001] The invention belongs to the field of composite materials, and in particular relates to a wood-plastic composite material for 3D printing and a preparation method thereof. Background technique [0002] 3D printing technology has a history of more than 20 years. It is an advanced additive manufacturing technology based on the principle of discrete accumulation. At present, the existing 3D printing consumables are mainly single PLA, ABS, PVA and other materials, but the above materials have their own limitations. The cost of PLA materials is high, and the materials are easy to deform when the temperature is above 55°C, and it is easy to block the nozzle of the equipment. ;ABS material is sensitive to temperature and shear rate, heavy odor, easy to deform and poor weather resistance during processing; while PVA water-soluble material is mainly used for printing support materials, the amount of use is small, and PVA will produce toxic gas when it decompose...

Claims

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Application Information

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IPC IPC(8): C08L67/04C08L97/02C08L23/06C08L23/28C08K13/04C08K7/22C08K5/42C08K5/10C08K5/098C08K5/134B33Y70/00
CPCC08L67/04B33Y70/00C08L2205/025C08L2205/035C08L2207/068
Inventor 殷冬枚
Owner 东莞市晶谷新材料技术有限公司
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