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Toughening of poly(butylene terephthalate) with epoxidized ethylene propylene diene rubber

✍ Scribed by Xue-Hui Wang; Hui-Xuan Zhang; Zhi-Gang Wang; Bing-Zheng Jiang

Book ID
104164453
Publisher
Elsevier Science
Year
1997
Tongue
English
Weight
413 KB
Volume
38
Category
Article
ISSN
0032-3861

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✦ Synopsis

In this paper, unepoxidized ethylene propylene diene rubber (uEPDM) was first epoxidized with formic acid and H202, and then the epoxidized ethylene propylene diene rubber (eEPDM) was melt-mixed with PBT resin in a Brabender-like apparatus. Toughening of PBT matrix was achieved by this method. The dispersion of rubber particles and phase structure of the blends were also observed by SEM. It has been suggested that the epoxy groups in the eEPDM could react with PBT end groups to form a graft copolymer which could act as an interfacial compatibilizer between the PBT matrix and eEPDM rubber dispersed phase. This is beneficial to the improvement of the impact performance of PBT.

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