Non-isothermal crystallization kinetics of reactive microgel/nylon 6 blends

doi:10.1016/j.cjche.2015.04.012

Chinese Journal of Chemical Engineering ›› 2015, Vol. 23 ›› Issue (8): 1403-1407.DOI: 10.1016/j.cjche.2015.04.012

Non-isothermal crystallization kinetics of reactive microgel/nylon 6 blends

Min He¹, Siqi Zong², Yahuan Zhou², Huaibing Guo², Qingchun Fan²

1 School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430074, China;
2 School of Chemical Engineering and Pharmacy,Wuhan Institute of Technology, Wuhan 430074, China

收稿日期:2014-12-11 修回日期:2015-03-02 出版日期:2015-08-28 发布日期:2015-09-26
通讯作者: Qingchun Fan
基金资助:
Supported by the Graduate Innovative Fund of Wuhan Institute of Technology (CX2013019).

Non-isothermal crystallization kinetics of reactive microgel/nylon 6 blends

Min He¹, Siqi Zong², Yahuan Zhou², Huaibing Guo², Qingchun Fan²

1 School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430074, China;
2 School of Chemical Engineering and Pharmacy,Wuhan Institute of Technology, Wuhan 430074, China

Received:2014-12-11 Revised:2015-03-02 Online:2015-08-28 Published:2015-09-26
Contact: Qingchun Fan
Supported by:
Supported by the Graduate Innovative Fund of Wuhan Institute of Technology (CX2013019).

摘要/Abstract

摘要： The non-isothermal crystallization kinetics of reactive microgel/nylon 6 blends was investigated by differential scanning calorimetry (DSC). The Mo equation was employed to analyze the non-isothermal crystallization data. The crystallization activation energies were also evaluated by the Kissinger method. The results show that the crystallization onset temperature (T_onset) and crystallization peak temperature (T_p) decrease with the increase of the content of reactive microgel, while ΔT (T_onset-T_p), the crystallization half-time (t_1/2) and the crystallization enthalpy (ΔH_c) increase. The required cooling rates of blends are higher than that of neat nylon 6 in order to achieve the same relative crystallinity in a unit of time. The crystallization activation energies of the reactive microgel/nylon 6 blends are greater than those of the neat nylon 6. When the content of reactive microgel is 30%, the relative crystallinity (X_t) reaches the maximum.

关键词: Reactive microgel, Nylon 6, Non-isothermal crystallization kinetics, Crystallization activation energy

Abstract: The non-isothermal crystallization kinetics of reactive microgel/nylon 6 blends was investigated by differential scanning calorimetry (DSC). The Mo equation was employed to analyze the non-isothermal crystallization data. The crystallization activation energies were also evaluated by the Kissinger method. The results show that the crystallization onset temperature (T_onset) and crystallization peak temperature (T_p) decrease with the increase of the content of reactive microgel, while ΔT (T_onset-T_p), the crystallization half-time (t_1/2) and the crystallization enthalpy (ΔH_c) increase. The required cooling rates of blends are higher than that of neat nylon 6 in order to achieve the same relative crystallinity in a unit of time. The crystallization activation energies of the reactive microgel/nylon 6 blends are greater than those of the neat nylon 6. When the content of reactive microgel is 30%, the relative crystallinity (X_t) reaches the maximum.

Key words: Reactive microgel, Nylon 6, Non-isothermal crystallization kinetics, Crystallization activation energy

Min He, Siqi Zong, Yahuan Zhou, Huaibing Guo, Qingchun Fan. Non-isothermal crystallization kinetics of reactive microgel/nylon 6 blends[J]. Chinese Journal of Chemical Engineering, 2015, 23(8): 1403-1407.

Min He, Siqi Zong, Yahuan Zhou, Huaibing Guo, Qingchun Fan. Non-isothermal crystallization kinetics of reactive microgel/nylon 6 blends[J]. Chin.J.Chem.Eng., 2015, 23(8): 1403-1407.

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Non-isothermal crystallization kinetics of reactive microgel/nylon 6 blends

Non-isothermal crystallization kinetics of reactive microgel/nylon 6 blends

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