用于3D打印的聚乳酸/蟹壳粉复合材料性能研究  

Properties of PLA/Crab Shell Powder Composites for 3D Printing

作　　者：伍尚景 郭晓宇 杨飞文 李华柳 黄咏仪 赵慧[1] 周武艺[1] 董先明[1] WU Shang-jing;GUO Xiao-yu;YANG Fei-wen;LI Hua-liu;HUANG Yong-yi;ZHAO Hui;ZHOU Wu-yi;DONG Xian-ming(Key Laboratory for Biobased Materials and Energy of Ministry of Education,College of Materials and Energy,Research Center of Biomass 3D Printing Materials,South China Agricultural University,Guangzhou 510642,China)

机构地区：[1]华南农业大学生物质基材料与能源教育部重点实验室材料与能源学院/生物质3D打印材料研究中心,广东广州510642

出　　处：《塑料科技》2023年第5期18-23,共6页Plastics Science and Technology

摘　　要：以废弃蟹壳粉(CSP)为原料,经过碱和醇化学处理,制得处理后的蟹壳粉(ACSP)。以ACSP为增强材料、聚乳酸(PLA)为基体,通过熔融共混挤出、拉丝制备适用于熔融沉积成型(FDM)的聚乳酸/蟹壳粉(PLA/ACSP)复合材料,并对其力学性能、打印性能、热学性能等进行探究。结果表明:加入少量ACSP可显著改善复合材料的力学性能。当ACSP含量为5%时,PLA/ACSP的力学性能与打印性能达到最佳,其拉伸强度和弯曲强度分别为66.04 MPa和96.14 MPa,相对于未添加ACSP的PLA 3D打印材料分别提升了72.24%和49.42%。ACSP有助于增强PLA的力学性能,制备的PLA/ACSP复合材料适用于FDM 3D打印技术。The treated crab shell powder(ACSP)was prepared from waste crab shell powder(CSP)by alkali and alcohol chemical treatment.Polylactic acid/crab shell powder(PLA/ACSP)composites suitable for fused deposition molding(FDM)were prepared by melt blending extrusion and drawing with ACSP as reinforcing material and polylactic acid(PLA)as matrix,and mechanical properties,printing properties and thermal properties of PLA/ACSP were investigated.The results show that the addition of a small amount of ACSP can significantly improve the mechanical properties of the composites.When the content of ACSP is 5%,the mechanical properties and printing properties of PLA/ACSP are the best.The tensile strength and bending strength of PLA/ACSP are 66.04 MPa and 96.14 MPa,respectively,which are 72.24%and 49.42%higher than those of PLA 3D printing materials without ACSP.ACSP helps to enhance the mechanical properties of PLA,and the prepared PLA/ACSP composites are suitable for FDM 3D printing technology.

关 键 词：蟹壳粉 聚乳酸 力学性能 3D打印 

分 类 号：TB332[一般工业技术—材料科学与工程]