Properties of Poly ( 3-hydroxybutyrate-co-4-hydroxybutyrate)/Polylactic acid Blend

doi:10.19491/j.issn.1001-9278.2008.03.008

China Plastics ›› 2008, Vol. 22 ›› Issue (03): 36-41 .DOI: 10.19491/j.issn.1001-9278.2008.03.008

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Properties of Poly ( 3-hydroxybutyrate-co-4-hydroxybutyrate)/Polylactic acid Blend

LI Mei，GAo Shan

1. College of Science, Civil Aviation University of China, Tianjin 300300，China; 2.School of Material Science and Engineering, Beihang University, Beijing 100083, China

Received:2007-08-12 Revised:1900-01-01 Online:2008-03-26 Published:2008-03-26

Abstract

Abstract: Blends of poly ( 3-hydroxybutyrate-co-4-hydroxybutyrate)polylactic acid (PHB/PLA) were prepared via melt mixing, whose properites were investigated with the XDR, differential scanning oalorimetry (DSC)，Rheometer，and polarizing mioroscope(PLM).With increasing amount of PLA,the crystallization temperature decreased from 102. 09 C to 62. 33 C，melting point decreased from 156 .OS C to 130 .32 C，the glass temperature increased from一8.69℃to 3.42 C.

Key words: poly(3-hydroxybutyrate-co-4-hydroxybutyrate), polylactic acid, biodegradability

LI Mei, GAo Shan. Properties of Poly ( 3-hydroxybutyrate-co-4-hydroxybutyrate)/Polylactic acid Blend[J]. China Plastics, 2008, 22(03): 36-41 .

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Properties of Poly ( 3-hydroxybutyrate-co-4-hydroxybutyrate)/Polylactic acid Blend

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