Preparation method of ASA (acrylonitrile styrene acrylate copolymer) composite material applicable to 3D printing

Abstract

The invention provides an ASA (acrylonitrile styrene acrylate copolymer) composite material applicable to 3D printing. The ASA composite material is prepared from components in percentage by mass as follows: 50%-70% of ASA resin, 20%-30% of AS resin powder, 5%-12% of inorganic filler, 0.1%-0.5% of an antioxidant, 0.1%-0.5% of an anti-ultraviolet agent, 2%-4% of toner and 1%-2% of a lubricant. The molding process of the ASA composite material is simple, mechanical property and material quality stability are greatly improved and optimized when compared with those of traditional ABS (acrylonitrile-butadiene-styrene) and PLA (polylactic acid) materials for 3D printing, production rate of inferior-quality products with hollow defect, buckling deformation and the like during 3D printing is reduced, the actual application value is higher, and applicable range is wider.

Description

technical field [0001] The invention relates to an ASA composite material, in particular to an ASA composite material for 3D printing and a preparation method thereof. Background technique [0002] With the gradual increase in the market share of 3D printing, the performance of its manufactured products also meets different requirements in different fields. They need to be more durable in different environments, and have the necessary UV resistance and weather resistance. In order to adapt to the market In order to compete, the manufacturing cost also needs to be reduced. The effect of 3D printing mainly depends on the quality of the consumables used. Materials that can be widely used in 3D printing technology must at least meet the following requirements: no pungent smell during printing, strong fluidity after melting, certain weather resistance, certain mechanical properties, different colors can be equipped, reasonable price, etc. . [0003] Among the 3D printing techno...

AI Technical Summary

Problems solved by technology

[0007] (3) The melt has high viscosity and poor fluidity, and it is easy to block the nozzle during printing, causing machine failure;

[0008] (4) poor thermal stability, moisture absorption tendency, poor aging resistance, and poor product stability;

[0010] (1) The gas is highly toxic and can cause cancer;

[0011] (2) The processing temperature is 200°C, and the shrinkage rate is low, but the effect of printing larger-sized products is not good;

[0012] (3) With low melt strength, the surface gloss of the printed model is better, but it is easy to block the nozzle;

[0013] (4) Because the domestically produced materials are shoddy, it mainly relies on foreign imports, which are expensive