SCI和EI收录∣中国化工学会会刊

Chin.J.Chem.Eng. ›› 2015, Vol. 23 ›› Issue (8): 1403-1407.DOI: 10.1016/j.cjche.2015.04.012

• MATERIALS AND PRODUCT ENGINEERING • Previous Articles     Next Articles

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

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

  1. 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:2015-09-26 Published:2015-08-28
  • Contact: Qingchun Fan
  • Supported by:

    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. 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
  • 通讯作者: Qingchun Fan
  • 基金资助:

    Supported by the Graduate Innovative Fund of Wuhan Institute of Technology (CX2013019).

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 (Tonset) and crystallization peak temperature (Tp) decrease with the increase of the content of reactive microgel, while ΔT (Tonset-Tp), the crystallization half-time (t1/2) and the crystallization enthalpy (ΔHc) 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 (Xt) reaches the maximum.

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

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 (Tonset) and crystallization peak temperature (Tp) decrease with the increase of the content of reactive microgel, while ΔT (Tonset-Tp), the crystallization half-time (t1/2) and the crystallization enthalpy (ΔHc) 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 (Xt) reaches the maximum.

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