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Mechanical Properties of Thermoplastic Polyester Elastomer Controlled by Blending with Poly(butylene terephthalate)
作者:Jing Huang, Jun Wang, Yaxin Qiu, Defeng Wu
關(guān)鍵字:thermoplastic polyester elastomer; poly(butylene terephthalate); blends; morphology; mechanical properties.
論文來(lái)源:期刊
具體來(lái)源:Polymer Testing
發(fā)表時(shí)間:2016年

Polymer Testing, 2016, 55C, 152-159. 

ABSTRACT:

Thermoplastic polyester elastomer (TPEE) blends with poly(butylene terephthalate) (PBT) were prepared by melt compounding for the phase morphology and mechanical property studies. Although PBT is immiscible with the continuous soft poly(tetramethylene glycol) (PTMEG) phase of TPEE, it is miscible with the discrete hard PBT one of TPEE. Therefore, PBT and TPEE are compatible and their blends reveal very low level of interfacial tension and very small size of discrete domains, as well as good interfacial adhesion between two phases, which provide high possibility to prepare TPEE alloys with controllable properties. Mechanical test results reveal that both the modulus and yield and tensile strengths increase with increasing weight ratios of PBT. The increased system rigidity and decreased system plasticity are further confirmed by the cyclic tensile tests. The main objective of this work is to provide useful information on the structure and property control of TPEE by simple mixing with aromatic polyesters.

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http://www.sciencedirect.com/science/article/pii/S014294181630664X

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