Effect of biobased and biodegradable nucleating agent on the isothermal crystallization of poly(lactic acid)

被引：63

作者：

Kang, Kyung Su ^{[1
]}

Lee, Sang Il ^{[2
]}

Lee, Tae Jin ^{[1
]}

Narayan, Ramani ^{[3
]}

Shin, Boo Young ^{[1
]}

机构：

[1] Yeungnam Univ, Sch Chem Engn & Technol, Gyeoungsan 712749, South Korea

[2] Channel DM Co Ltd, Seoul 140709, South Korea

[3] Michigan State Univ, Dept Chem Engn & Mat Sci, E Lansing, MI 48823 USA

来源：

KOREAN JOURNAL OF CHEMICAL ENGINEERING | 2008年 / 25卷 / 03期

关键词：

poly(lactic acid); nucleating agent; isothermal crystallization; chemically modified thermoplastic starch;

D O I：

10.1007/s11814-008-0101-7

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The effect of chemically modified thermoplastic starch (CWS) on the thermal properties and isothermal crystallization kinetics of poly(lactic acid) (PLA) was studied by differential scanning calorimetry (DSC) and compared to that of granular starch and an inorganic nucleating agent, talc. Nucleated PLA showed an additional crystallization of PLA, which affected the melting temperature. The crystallinity and crystallization rate of PLA were considerably enhanced by addition of CMPS, even at 0.1% content, and the amount of the CMPS had little effect on the thermal properties and isothermal crystallization kinetics of PLA. The effect of CMPS as a nucleating agent was comparable to that of granular starch but slightly less than that of talc. However, CMPS can offer a fully biodegradable nucleating agent with no residues remaining for the biobased and biodegradable polymers.

引用

页码：599 / 608

页数：10

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