Biodegradable Poly(lactic acid)/TDI-montmorillonite Nanocomposites: Preparation and Characterization

doi:10.4028/www.scientific.net/AMR.221.211

CORC > 兰州理工大学 > 兰州理工大学 > 石油化工学院

	Biodegradable Poly(lactic acid)/TDI-montmorillonite Nanocomposites: Preparation and Characterization
	Chen, Nali 1; Feng, Huixia 1; Guo, Jingwei 1; Luo, Heming 1; Qiu, Jianhui 2
	2011
关键词	biodegradable polylactic acid montmorillonite nanocomposites toluene diisocyanate
卷号	221
DOI	10.4028/www.scientific.net/AMR.221.211
页码	211-+
英文摘要	Activated montmorillonite(MMT) was modified by toluene diisocyanate(TDI) and TDI-montmorillonite(TDI-MMT) was prepared. The characterization of TDI-MMT was carried out by X-ray diffraction(XRD) and fourier transform infrared spectrometry (FT-IR). The results showed that TDI had been inserted to the interlayer of MMT and the interlayer spacing of MMT increased by 0.26nm. With stannous chloride as catalyst, the biodegradable polylactide acid/TDI-montmorillonite(PLA/TDI-MMT) nanocomposites were synthesized through ring-opening polymerization of lactide in the layer of TDI-MMT by in-situ polymerization. The structure and thermal stability of nanocomposites were investigated by XRD, FT-IR and thermogravimetry (TG). Exfoliated nanocomposites were obtained as shown by XRD results. FT-IR spectra confirmed that TDI-MMT participated in the ring-opening polymerization of lactide. TG analysis indicated the decomposition temperature of nanocomposites rose and the thermal stability was improved contrast to the neat PLA. The effect of the content of TDI-MMT on the molecular weight and thermal stability of nanocomposites was studied. With the increase of the proportion of TDI-MMT, the molecular weight of resultant nanocomposites decreased and the decomposition temperature rose at the range of experiment research.
会议录	ADVANCED POLYMER SCIENCE AND ENGINEERING
会议录出版者	TRANS TECH PUBLICATIONS LTD
会议录出版地	KREUZSTRASSE 10, 8635 DURNTEN-ZURICH, SWITZERLAND
语种	英语
资助项目	National Science Council, Gansu[ZS021-A25-028-C] ; National Science Council, Gansu[3ZS-042-B25-008] ; National Science Council, Gansu[0809DJZA011B]
WOS研究方向	Polymer Science
WOS记录号	WOS:000291825800038
内容类型	会议论文
源URL	[http://119.78.100.223/handle/2XXMBERH/37564]
专题	石油化工学院教务处（创新创业学院）
通讯作者	Chen, Nali
作者单位	1.Lanzhou Univ Technol, Sch Petrochem Engn, Lanzhou 730050, Peoples R China 2.Akita Prefectural Univ, Engn Fac Syst Engn, Dept Mach Intelligence & Syst, Akita 0150055, Japan
推荐引用方式 GB/T 7714	Chen, Nali,Feng, Huixia,Guo, Jingwei,et al. Biodegradable Poly(lactic acid)/TDI-montmorillonite Nanocomposites: Preparation and Characterization[C]. 见:.