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首页> 外文期刊>International journal of applied mechanics >Micrometer Copper-Zinc Alloy Particles-Reinforced Wood Plastic Composites with High Gloss and Antibacterial Properties for 3D Printing
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Micrometer Copper-Zinc Alloy Particles-Reinforced Wood Plastic Composites with High Gloss and Antibacterial Properties for 3D Printing

机译：千米铜 - 锌合金颗粒 - 增强木塑复合材料，具有高光泽度和抗菌性能，用于3D印刷

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摘要

In this work, micrometer copper-zinc alloy particles-reinforced particleboard wood flour/poly (lactic acid) (mCu-Zn/PWF/PLA) wood plastic composites with high gloss and antibacterial properties for 3D printing were prepared by a melt blending process. The structure and properties of the composites with different contents of mCu-Zn were analyzed by means of mechanical testing, dynamic mechanical analysis, thermogravimetric analysis, differential scanning calorimetry, X-ray diffraction, scanning electron microscopy, and antibacterial testing. The results showed that the mechanical properties, thermal stability, and antibacterial performance of the composites were significantly improved, as mCu-Zn was added into the wood plastic composites. When adding 2 wt.% mCu-Zn, the flexural strength of mCu-Zn/PWF/PLA composites (with 5 wt.% of particleboard wood flour) (PWF) increased by 47.1% compared with pure poly (lactic acid) (PLA), and 18.9% compared with PWF/PLA wood plastic composites. The surface gloss was increased by 1142.6% compared with PWF/PLA wood plastic composites. Furthermore, the inhibition rates of mCu-Zn/PWF/PLA composites against Escherichia coli reached 90.43%. Therefore, this novel high gloss and antibacterial wood plastic composites for fused deposition modeling (FDM) 3D printing have potential applications in personalized and classic furniture, art, toys, etc.
机译：在这项工作中，通过熔融共混工艺制备了微米铜 - 锌合金颗粒 - 增强刨花板木粉/聚（乳酸）（MCU-ZN / PWF / PLA）木塑料复合材料和3D印刷的抗菌性能。通过机械测试，动态机械分析，热重分析，差示扫描量热法，X射线衍射，扫描电子显微镜和抗菌检测分析了具有不同MCU-Zn的复合材料的组合物的结构和性质。结果表明，复合材料的机械性能，热稳定性和抗菌性能显着改善，因为MCU-Zn加入到木塑复合材料中。加入2重量％的MCU-Zn时，MCU-Zn / PWF / PLA复合材料的弯曲强度（刨花板木粉的5重量％）（PWF）与纯聚（乳酸）相比增加了47.1％（PLA ）和18.9％与PWF / PLA木塑料复合材料相比。与PWF / PLA木塑复合材料相比，表面光泽增加了1142.6％。此外，MCU-Zn / PWF / PLA复合材料对大肠杆菌的抑制率达到90.43％。因此，这种新型高光泽和抗菌木塑料复合材料用于融合沉积建模（FDM）3D印刷具有个性化和经典家具，艺术，玩具等中的潜在应用。

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