改性埃洛石/聚乳酸纳米复合材料的制备及性能  

Preparation and Properties of Modified Halloysite Nanotubes/Poly(Lactic Acid)Nanocomposites

作　　者：经春华 JING Chunhua(Jiangsu Ruixiang Chemical Co.,Ltd.,Yizheng Jiangsu 211400,China)

机构地区：[1]江苏瑞祥化工有限公司,江苏仪征211400

出　　处：《包装学报》2024年第6期10-16,51,共8页Packaging Journal

摘　　要：聚乳酸(PLA)是一种应用前景良好的生物可降解材料。为进一步改善聚乳酸材料的综合性能,采用3-氨基丙基三乙氧基硅烷(APTES)偶联剂改性埃洛石(HNTs),将其作为填充材料与聚乳酸进行熔融共混,制备了聚乳酸/改性埃洛石(mHNTs)纳米复合材料,探究了该复合材料的力学性能,热稳定性及结晶性能。研究表明:mHNTs在PLA基体内分散性良好,且与纯PLA相比,制备的纳米复合材料拉伸强度提高了33%,且聚乳酸的结晶度提高了约10.5%。Poly(lactic acid)(PLA)is regarded as a promising biodegradable material with good application prospect.To further improve the comprehensive properties of PLA,3-aminopropyltriethoxysilane(APTES)was used to modify the halloysite nanotubes(HNTs)to obtain the modified halloysite nanotubes(mHNTs),which was then used as nanofillers and melting blended with PLA matrix to prepare the PLA/mHNTs nanocomposites.The mechanical performance,thermal behavior,and the crystalline property of the nanocomposites were investigated.It was found that the mHNTs dispersed well in the PLA matrix,and compared to the pure PLA,the tensile strength of the prepared nanocomposites was improved by 33% and the crystalline degree was increased by 10.5%,respectively.

关 键 词：聚乳酸 改性埃洛石 纳米复合材料 力学性能 

分 类 号：TB332[一般工业技术—材料科学与工程]