Journal of South China University of Technology (Natural Science Edition) ›› 2013, Vol. 41 ›› Issue (10): 103-107,116.doi: 10.3969/j.issn.1000-565X.2013.10.017

• Materials Science & Technology • Previous Articles     Next Articles

Mechanical and Rheological Properties of Polybutylene Succinate / Epoxidized Soybean Oil Blends

Zhao Yong-qing Chen Fu-quan Wu Zheng-huan Feng Yan-hong Jin Gang Qu Jin-ping   

  1. National Engineering Research Center of Novel Equipment for Polymer Processing∥Key Laboratory of Polymer ProcessingEngineering of the Ministry of Education,South China University of Technology,Guangzhou 510640,Guangdong,China
  • Received:2013-04-24 Revised:2013-06-04 Online:2013-10-25 Published:2013-09-03
  • Contact: 瞿金平(1957-)，男，教授，博士生导师，中国工程院院士，主要从事聚合物成型理论及装备研究． E-mail:jpqu@scut.edu.cn
  • About author:赵永青(1982-)，男，博士后，主要从事聚合物成型加工技术与理论、淀粉改性等的研究; E-mail:zhaoyongqing389@163．com
  • Supported by:

    NSFC － 广东省人民政府自然科学联合基金资助项目( U1201242) ; 教育部新世纪优秀人才支持计划项目( NCET-11-0152) ; 广州市珠江科技新星专项( 2011J2200058)

PDF

609

Abstract:

In the investigation,the melt blending of polybutylene succinate ( PBS) and a novel plasticizer epoxidizedsoybean oil ( ESO) was carried out by using an internal mixer,and a series of PBS /ESO blends were thusprepared.Moreover,the effects of the ESO content on the mechanical and rheological properties of PBS /ESOblends as well as on their morphologies were discussed.The results show that ( 1) the introduction of the ESO significantlyimproves the tensile and impact toughness of the PBS; ( 2) with the increase of the ESO content,theelongation-at-break and the impact strength of the PBS /ESO blends first increase and then decrease,and at the ESOcontent of 5%,they both reach the maximums which are respectively 15.0 and 1,4 times those of PBS; ( 3) thetensile strength,tensile modulus,flexural strength,and flexural modulus of the PBS /ESO blends decrease with theincrease of the ESO content; ( 4) the addition of ESO significantly decrease the complex viscosity of the moltenPBS,thus resulting in an earlier shear-thinning transition of PBS; and ( 5) the PBS /ESO blend with a higher ESOcontent exhibits a distinct phase separation,which indicates that the ESO/PBS blend is a partially miscible system.

Key words: polybutylene succinate, epoxidized soybean oil, melt blending, mechanical properties, rheological property