INFLUENCE OF COMPATIBILIZER ON MECHANICAL PROPERTIES OF POLYLACTIC ACID/NATURAL RUBBER BLENDS

被引：9

作者：

Mohammad, Nor Nisa Balqis ^{[1
]}

Arsad, Agus ^{[1
]}

Rahmat, Abdul Razak ^{[1
]}

Talib, Mohammad Shukor ^{[2
]}

Desa, Mohd Shaiful Zaidi Mat ^{[1
]}

机构：

[1] Univ Teknol Malaysia, Fac Chem Engn, Enhanced Polymer Res Grp, Skudai 81310, Johor, Malaysia

[2] Univ Teknol Malaysia, Fac Comp Sci & Informat Syst, Skudai 81310, Johor, Malaysia

来源：

MECHANICAL AND MATERIALS ENGINEERING | 2014年 / 554卷

关键词：

Poly(lactic acid); natural rubber; compatibilizer; maleic anhydride; POLY(LACTIC ACID); NATURAL-RUBBER;

D O I：

10.4028/www.scientific.net/AMM.554.81

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Derived from renewable resources, Poly(lactic) acid (PLA) exhibits good mechanical properties comparable with conventional polyolefins. However, major obstacle in PLA which may limit its application is due to brittleness. Thus, PLA requires toughening to overcome the weakness. In this study, PLA was blended with different ratio of natural rubber (0 to 20 wt.%) through melt blending in a twin screw extruder. The results of tensile strength and Young's modulus of PLA/NR blends were decreased. In order to enhance the blend performance, PLA grafted maleic anhydride (PLA-g-MA) was used as compatibilizer. The preparation of PLA-g-MA was carried out using internal mixer by free radical melt grafting reaction followed by Fourier Transform Infrared Spectroscopy (FTIR) analysis to confirm the grafting reaction. To investigate the compatibilization effect on the mechanical properties of PLA/NR blends, PLA-g-MA was added to the blends at various compositions (1-10 phr). Mechanical properties increased markedly compared to the virgin PLA/NR blends and FTIR result confirmed grafting reaction occurred between MA and PLA.

引用

页码：81 / +

页数：2

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