Biomass wood-plastic composite material for 3D (three-dimensional) printing and preparation method for biomass wood-plastic composite material

A wood-plastic composite material, 3D printing technology, applied in the field of 3D printing consumables, can solve the problems of complex and harsh processing conditions, sensitive to temperature and shear rate, easy to block equipment nozzles, etc., to improve dimensional stability and mechanical properties, Improve the interface compatibility and the effect of large aspect ratio

Inactive Publication Date: 2015-02-18
QUZHOU UNIV +1
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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

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0026] Embodiment one

[0027] Weigh 40 parts of 250-mesh wood powder according to the number of parts by mass, put it into a microwave dryer and dry it at 90°C for 1.5 hours to reduce the water content to 3%; dry 40 parts of wood powder and 15 parts of pulp , 5 parts of 1000-mesh hollow microspheres, 3 parts of titanate coupling agents were added to a high-speed mixer for activation treatment, fully mixed for 10 minutes to obtain a mixture; the above mixture, PLA with a melt index of 5, and a viscosity-average molecular weight of 2.1 million UHMWPE, 3 parts of maleic anhydride grafted PLA compatibilizer, 2 parts of lubricant mixed with polyethylene wax and ethylene bis stearic acid amide, 1 part composed of antioxidant 1010 and antioxidant 215 The composite antioxidant and 1 part of poly(adipic acid-succinic acid) butanediol copolyester toughening agent are added to the double-cone mixer and mixed for 30 minutes to disperse uniformly to obtain a premix; mix uniformly The pre...

Example Embodiment

[0028] Embodiment two

[0029] Weigh 30 parts of 250-mesh bamboo powder by mass, put it into a microwave dryer and dry it at 90°C for 1 hour to reduce its water content to 2.5%; dry 30 parts of bamboo powder and 20 parts of paper pulp , 5 parts of 1000-mesh hollow microspheres, and 3 parts of aluminate coupling agent are added to a high-speed mixer for activation treatment, and fully mixed for 10 minutes to obtain a mixture; the above mixture, PLA with a melt index of 5, and a viscosity-average molecular weight of 2.1 million, 3 parts of maleic anhydride grafted PLA compatibilizer, 2 parts of lubricant mixed with paraffin wax, polyethylene wax and stearic acid, 1 part of composite antioxidant composed of antioxidant 1010 and antioxidant 215 Oxygen agent and 1 part of poly(adipic acid-succinic acid) butanediol copolyester toughening agent are added to the double-cone mixer and mixed for 30 minutes until uniformly dispersed to obtain a premix; the uniformly mixed premix The mat...

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PUM

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Abstract

The invention provides a biomass wood-plastic composite material for 3D (three-dimensional) printing. The composite material is characterized by comprising the following components in parts by mass: 30 to 60 parts of PLA (poly lactic acid), 6 to 10 parts of UHMWPE (ultrahigh molecular weight polyethylene), 10 to 40 parts of wood dust, bamboo powder or rice hull powder, 10 to 20 parts of paper pulp, 1 to 4 parts of a compatilizer, 1 to 3 parts of a coupling agent, 5 to 10 parts of hollow microspheres, 1 to 3 parts of a lubricant, 0.5 to 2 parts of an antioxidant and 1 to 3 parts of a toughening agent. The composite material is low-carbon, environment-friendly, high in stability, free of hole plugging and warping, can be completely recycled, has the natural friendliness of wood, and has low requirements for machining conditions, and a product has higher physical and mechanical performance and higher weather resistance such as acid and alkali resistance, mothproof performance and ultraviolet resistance.

Description

technical field [0001] The invention relates to a 3D printing consumable, in particular to a biomass wood-plastic composite material 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 decomposes . In short, the 3D print...

Claims

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Application Information

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IPC IPC(8): C08L67/04C08L23/06C08L97/02C08L51/08C08L67/02C08L1/02C08K13/04C08K7/22C08K5/10B29C47/92B29C48/92
Inventor 蔡建臣王世坚周兆忠蒋金云
Owner QUZHOU UNIV
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