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|Table of Contents|

马来酸酐接枝聚乳酸与淀粉共混物的研究(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2013年06期
Page:
111-115
Column:
研究论文
publishdate:
2013-11-27

Article Info:/Info

Title:
Research of maleic anhydride grafted to polylactic and mixed with starch
Article ID:
1000-2006(2013)06-0111-05
Author(s):
GU Longfei JING Yi*
Jiangsu Provincial Key Lab of Pulp and Paper Science and Technology, Nanjing Forestry University, Nanjing 210037, China
Keywords:
polylactic grafting starch compatibility
Classification number :
TQ316
DOI:
10.3969/j.issn.1000-2006.2013.06.022
Document Code:
A
Abstract:
The grafting reaction of polylactic acid(PLA)with maleic anhydride(MA)using 2,5-dimethyl-2,5-di(tert-butylperoxy)hexane as the initiator was investigated in this paper. Effects of reaction temperature, reaction time, dosage of initiator, and the amount of MA on the grafting degree were examined, and the suitable grafting conditions were determined as follows: reaction temperature 95℃, reaction time 3 h, the dosage of initiator 1%. The compatibility of a MA grafted PLA with starch composite was compared with a PLA with starch composite through differential scanning calorimeter(DSC), water absorption and SEM. The result showed that the MA grafted PLA with starch composite has the lower glass transition temperature and lower water absorption compared with a PLA with starch composite. That proved the compatibility was improved. The SEM also showed that the compatibility was improved obviously.

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Last Update: 2013-11-30