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2012 ◽  
Vol 472-475 ◽  
pp. 1831-1836
Author(s):  
Ping Wang ◽  
Li Hua Cheng ◽  
Jian Qing Zhao

Blends of polycarbonate (PC) and poly(butylene terephthalate) (PBT) were investigated. For 40 wt % PBT, it forms a continuous phase, the glass transition temperature (Tg) shifts to the lower temperature region. This direct comparison of XRD patterns of pure PBT and PBT containing 1.1% TPPi studied the impact of the crystallization of PBT and TPPi. We can see that diffraction peaks of XRD diagram of PBT/TPPi were broadened. When PBT content was added to 1.1% TPPi, the FWHM increases from 3.8 to 4.2 when diffraction angle was in the range of 16.9 degrees to 17.1 degrees. Thus, the addition of TPPi resulted in the small spherulite size of PBT phase, thus elaborating the sample transparency phenomenon.


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