Studies on Nucleation of Cellulose Aromatic Ester Thermotropic Liquid Crystal on Polyethylene Terephthalate

Abstract

Abstract: Using a self prepared cellulose aromatic ester(CAE) thermotropic liquid crystal as polyethylene terephthalate(PET) nucleating agent, the isothermal crystallizing kinetics characteristics of PET/CAE(CAEcontent≤1%) in the temperature range of 110～200 ℃ were investigated. The results show that CAEcan significantly accelerate crystallizing rate (Z) of PET, with the change of crystallizing temperature and CAE content, Zhas a maximum value Z_max (T_C) and Z_max ( W_CAE), the temperature T_max corresponding to Z_max (T_C) decreases with the increase of CAE content. The mechanism of CAE accelerating PET crystallization is different from that of common nucleating agent.

Key words: Polyethylene terephthalate(PET), Cellulose aromatic ester, Thermotropic liquid crystal, Crystallizing kinetics

CLC Number:

O631.2

TrendMD:

RUAN Wen-Hong, SHEN Jing-Wei, LI Bai-Qian. Studies on Nucleation of Cellulose Aromatic Ester Thermotropic Liquid Crystal on Polyethylene Terephthalate[J]. Chem. J. Chinese Universities, 1998, 19(3): 469.

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Studies on Nucleation of Cellulose Aromatic Ester Thermotropic Liquid Crystal on Polyethylene Terephthalate

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