Effect of the compatibilization of linear low-density polyethylene-g-acrylic acid on the morphology and mechanical properties of poly(butylene terephthalate)/linear low-density polyethylene blends


Autoria(s): Yang JH; Shi D; Yao ZH; Xin ZR; Yin JH
Data(s)

2002

Resumo

A poly(butylene terephthalate) (PBT)/linear low-density polyethylene (LLDPE) alloy was prepared with a reactive extrusion method, For improved compatibility of the blending system, LLDPE grafted with acrylic acid (LLDPE-g-AA) by radiation was adopted in place of plain LLDPE. The toughness and extensibility of the PBT/LLDPE-g-AA blends, as characterized by the impact strengths and elongations at break, were much improved in comparison with the toughness and extensibility of the PBT/LLDPE blends at the same compositions. However, there was not much difference in their tensile (or flexural) strengths and moduli. Scanning electron microscopy photographs showed that the domains of PBT/LLDPE-g-AA were much smaller and their dispersions were more homogeneous than the domains and dispersions of the PBT/ T,T PE blends. Compared with the related values of the PBT/LLDPE blends, the contents and melting temperatures of the usual spherulites of PBT in PBT/LLDPE-g-AA decreased.

Identificador

http://ir.ciac.jl.cn/handle/322003/18747

http://www.irgrid.ac.cn/handle/1471x/154109

Idioma(s)

英语

Fonte

Yang JH;Shi D;Yao ZH;Xin ZR;Yin JH.Effect of the compatibilization of linear low-density polyethylene-g-acrylic acid on the morphology and mechanical properties of poly(butylene terephthalate)/linear low-density polyethylene blends,JOURNAL OF APPLIED POLYMER SCIENCE,2002,84(5):1059-1066

Palavras-Chave #POLYMER BLENDS #REACTIVE EXTRUSION
Tipo

期刊论文