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

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, specifically a biomass wood-plastic composite material and a preparation method thereof. Background technique [0002] 3D printing technology has been around for more than 20 years. This technology is based on the discrete-accumulation principle and is an advanced additive manufacturing technology. Currently, the existing 3D printing consumables are mainly single materials such as PLA, ABS, and PVA. However, the above materials have their own limitations. The cost of PLA materials is relatively high, and the materials are easily deformed above 55°C and can easily block the equipment nozzles. ; ABS materials are sensitive to temperature and shear rate, have strong odor, are easily deformed and have poor weather resistance during processing; while PVA water-soluble materials are mainly used for printing support materials, with a small amount, and toxic gases are produced when PVA decomposes . In short,...

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.