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Citation: HE Yuxin, ZHANG Yuqing. Thermoplastic Starch/Polyvinyl Alcohol/Montmorillonite Nanocomposites[J]. Chinese Journal of Applied Chemistry, ;2011, 28(7): 764-769. doi: 10.3724/SP.J.1095.2011.00530 shu

Thermoplastic Starch/Polyvinyl Alcohol/Montmorillonite Nanocomposites

HE Yuxin ,
ZHANG Yuqing ^,

1.
Key Laboratory of Polymer Science and Nano-technology, Henan University of Science and Technology, Luoyang 471003

Corresponding author: ZHANG Yuqing,
Received Date: 13 September 2010
Available Online: 28 November 2010

Melt extrusion method was adopted to produce thermoplastic starch(TPS)/polyvinyl alcohol(PVA)/montmorillonite(MMT) nanocomposites.The mechanical properties of TPS were improved effectively by adding certain amount of MMT and PVA.Under a relative humidity of 50%,the X-ray diffraction and transmission electron microscopy of the composites showed that MMT was exfoliated and well dispersed in TPS/PVA matrix.Mechanical property test showed that the mechanical property of the composites[w(MMT)=0% to 5%]was obviously improved.The tensile strength of the composite[w(MMT)=3%]reached 13.24 MPa and the Young's modulus reached 61.46 MPa.This indicates that MMT is likely to play a role of physical crosslinking to improve the mechanical properties of composites.
- thermoplastic starch,
- nanocomposite,
- montmorillonite,
- polyvinyl alcohol,
- exfolated
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