摘要
通过改进直接聚合法制备了新型三维打印材料聚乳酸(PLA),并利用傅里叶变换红外光谱仪、差示扫描量热仪和热重分析仪等表征了PLA的结构、并测试了其热稳定性和其他性能。结果表明:采用改进后的工艺能成功制备PLA,该材料在226℃后才有明显的失重现象且其熔点、熔体流动速率、拉伸强度分别为130.65℃,9.58g/10 min,63.2 MPa。新型PLA材料具有优异的热稳定性、流动性及高的拉伸强度。
A novel poly(lactic acid)(PLA) for environment-friendly 3D printing material is prepared by improving the direct polymerization method. The structure is characterized and the thermal stability and other properties of the PLA are tested by Fourier transform infrared spectroscopy(FTIR), differential scanning calorimetry(DSC) and thermogravimetry(TG). The results show that the PLA can be prepared successfully by the improved process,and the significant mass loss appears after 226℃. The melt point, melt flow rate, tensile strength are 130.65℃,9.58 g/10 min, 63.2 MPa,respectively. The novel PLA material has good thermal stability,fluidity and high tensile strength.
出处
《合成树脂及塑料》
CAS
北大核心
2015年第6期21-23,共3页
China Synthetic Resin and Plastics
基金
国家自然科学基金项目(21271182)
江苏高校优势学科建设工程资助项目
南通市级应用研究计划项目(BK2014052
BK2014053)
南通大学研究生科技创新计划项目(YKC14005)
关键词
聚乳酸
三维打印
直接聚合法
结构表征
热稳定性
poly(lactic acid)
three-dimensional printing
direct polymerization
structure characterization
thermal stability
