摘要
以有机改性的水滑石(LDH)为前体,采用插层置换的方法合成乳酸插层水滑石;以其与乳酸作为单体,采用原位聚合法得到聚乳酸水滑石的大分子材料。对其进行红外光谱、示差量热扫描(DSC)、扫描电镜(SEM)进行分析,并对聚乳酸/LDH复合材料的分子结构和热学性能等进行表征。结果表明:随着乳酸插层LDH含量的增加玻璃化温度有所提高;且乳酸插LDH与聚乳酸之间结合紧密明显的相间界面已经消失。
With organic modified hydrotalcite（LDH） as precursor, lactic acid intercalated hydrotalcite were synthesized by the method of inserted layer displacement; With its and lactic acid as monomer, by changing the content of lactic acid obtained by in situ polymerization of hydrotalcite poly（lactic acid）（PLA）the polylactic acid/LDH materials were synthesized. The samples prepared were characterized by FTIR, DSC, SEM and molecular structure of polylactic acid/LDH composite materials and thermal properties were characterized. The results show that with the increase of lactic acid intercalating LDH Tgincreased; And lactic acid inserted between LDH and polylactic acid combined with close and clear interface has disappeared.
出处
《化学工程师》
CAS
2016年第6期16-18,共3页
Chemical Engineer
基金
陕西省科技厅科研项目(2013JM2016)
陕西省教育厅科研项目(2013JK0642)
咸阳师范学院科研项目(12XSYK021)
关键词
LDH
乳酸
复合材料
LDH
lactic acid
nanometer compound materials
