Blends of Poly(lactic acid) with Thermoplastic Acetylated Starch
Zhang Kun-yu1,2; Ran Xiang-hai1,2; Zhuang Yu-gang1; Yao Bin1; Dong Li-song1
AbstractBlends of poly(lactic acid)(PLA) and thermoplastic acetylated starch(ATPS) were prepared by means of the melt mixing method. The results show that PLA and ATPS were partially miscible, which was confirmed with the measurement of T(g) by dynamic mechanical analysis(DMA) and differrential scanning calorimetry(DSC). The mechanical and thermal properties of the blends were improved. With increasing the ATPs content, the elongation at break and impact strength were increased. The elongation at break increased from 5% of neat PLA to 25% of the blend PLA/ATPS40. It was found that the cold crystallization behavior of PLA changed evidently by addition of ATPS. The cold crystallization temperature(T(cc)) of each of PLA/ATPS blends was found to shift to a lower temperature and the width of exothermic peak became narrow compared with that of neat PLA. The thermogravimetry analysis(TGA) results showed that the peak of derivative weight for ATPS moved to higher temperature with increasing PLA content in PLA/ATPS blends. It can be concluded that PLA could increase the thermal stability of ATPS. The rheological measurement reveals the melt elasticity and viscosity of the blends decreased with the increased concentration of ATPS, which was favorable to the processing properties of PLA.
KeywordPoly(Lactic Acid) Thermoplastic Acetylated Starch Blend
Indexed BySCI
WOS IDWOS:000271081900032
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Cited Times:19[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Corresponding AuthorDong Li-song
Affiliation1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Zhang Kun-yu,Ran Xiang-hai,Zhuang Yu-gang,et al. Blends of Poly(lactic acid) with Thermoplastic Acetylated Starch[J]. CHEMICAL RESEARCH IN CHINESE UNIVERSITIES,2009,25(5):748-753.
APA Zhang Kun-yu,Ran Xiang-hai,Zhuang Yu-gang,Yao Bin,&Dong Li-song.(2009).Blends of Poly(lactic acid) with Thermoplastic Acetylated Starch.CHEMICAL RESEARCH IN CHINESE UNIVERSITIES,25(5),748-753.
MLA Zhang Kun-yu,et al."Blends of Poly(lactic acid) with Thermoplastic Acetylated Starch".CHEMICAL RESEARCH IN CHINESE UNIVERSITIES 25.5(2009):748-753.
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