Morphology and viscoelastic behavior of PBS/TPS blends containing varying amylose contents

doi:10.3969/j.issn.0438-1157.2013.06.053

CIESC Journal ›› 2013, Vol. 64 ›› Issue (6): 2300-2305.DOI: 10.3969/j.issn.0438-1157.2013.06.053

Morphology and viscoelastic behavior of PBS/TPS blends containing varying amylose contents

LI Jiwei^1,2, LUO Xuegang^1,2, LIN Xiaoyan^1,2, HUANG Yonghua¹

1. Engineering Research Center of Biomass Materials, Ministry of Education, Southwest University of Science and Technology, Mianyang 621010, Sichuan, China;
2. School of Material Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, Sichuan, China

Received:2012-10-05 Revised:2013-01-24 Online:2013-06-05 Published:2013-06-05
Supported by:
supported by the National Science & Technology Pillar Program during the Eleventh Five-Year Plan Period(2007BAE42B04)and the Postgraduate Innovation Fund of Southwest University of Science and Technology(12ycjj09).

不同淀粉类型TPS/PBS共混体系的形貌与黏弹行为

李纪伟^1,2, 罗学刚^1,2, 林晓艳^1,2, 黄永华¹

1. 西南科技大学材料科学与工程学院, 四川绵阳 621010;
2. 西南科技大学生物质材料教育部工程研究中心, 四川绵阳 621010

通讯作者: 罗学刚
作者简介:李纪伟(1988—),男,硕士研究生。
基金资助:
国家"十一五"科技支撑计划项目(2007BAE42B04);西南科技大学研究生创新基金项目(12ycjj09)。

Abstract

Abstract: Thermoplastic waxy corn starch (WTPS) and maise starch (MTPS) were prepared by melt blending.Furthermore, WTPS/poly (butylenes succinate) (PBS) blends and MTPS/PBS blends were prepared for investigating the effects of starch type on the morphology and viscoelastic behavior of the blends.The results showed that plasticization of waxy corn starch was more easily performed than that of maise starch and WTPS had a lower melt viscosity than that of MTPS.The WTPS/PBS blends had a better homogeneous fracture surface than that of MTPS/PBS blends.When blending ratio of TPS/PBS was 60/40, dynamic rheological behavior of the blends was mainly attributed to TPS phase and MTPS/PBS blends had higher storage modulus and complex viscosity than those of WTPS/PBS blends.When blending ratio of TPS/PBS was 40/60, PBS phase played an important role in dynamic rheological behavior of the blends and the MTPS/PBS blends in low shear rates (ω<1 r·s^-1) showed more apparent solid-like dynamic rheological behavior.

Key words: amylose content, TPS, PBS, morphology, dynamic rheological behavior

关键词: 直链淀粉含量, 热塑性淀粉, 聚丁二酸丁二醇酯, 微观形貌, 黏弹行为

CLC Number:

TK02

LI Jiwei, LUO Xuegang, LIN Xiaoyan, HUANG Yonghua. Morphology and viscoelastic behavior of PBS/TPS blends containing varying amylose contents[J]. CIESC Journal, 2013, 64(6): 2300-2305.

李纪伟, 罗学刚, 林晓艳, 黄永华. 不同淀粉类型TPS/PBS共混体系的形貌与黏弹行为[J]. 化工学报, 2013, 64(6): 2300-2305.

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Morphology and viscoelastic behavior of PBS/TPS blends containing varying amylose contents

不同淀粉类型TPS/PBS共混体系的形貌与黏弹行为

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