UV enhanced gas–solid synthesis of chlorinated poly vinyl chloride characterized by a UV–Vis online analysis method

Qianli Yang; Wei Lu; Lin Bai; Binhang Yan; Yi Cheng

doi:10.1016/j.cjche.2014.12.002

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UV enhanced gas–solid synthesis of chlorinated poly vinyl chloride characterized by a UV–Vis online analysis method

材料与产品工程 | Updated：2026-01-06

- UV enhanced gas–solid synthesis of chlorinated poly vinyl chloride characterized by a UV–Vis online analysis method
- Chinese Journal of Chemical Engineering Issue 6, Pages: 1052-1059(2015)
- Affiliations：
  
  Department of Chemical Engineering, Tsinghua University,Beijing,China,100084
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2014.12.002
  CLC：
- Published：2015
- Accepted：
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Qianli Yang, Wei Lu, Lin Bai, et al. UV enhanced gas–solid synthesis of chlorinated poly vinyl chloride characterized by a UV–Vis online analysis method[J]. Chinese Journal of Chemical Engineering, 2015, (6): 1052-1059.
DOI：

Qianli Yang, Wei Lu, Lin Bai, et al. UV enhanced gas–solid synthesis of chlorinated poly vinyl chloride characterized by a UV–Vis online analysis method[J]. Chinese Journal of Chemical Engineering, 2015, (6): 1052-1059. DOI： 10.1016/j.cjche.2014.12.002.

摘要

Dynamic characteristics of UV enhanced gas–solid PVC chlorination process were revealed by a UV–Vis spectral online analysis method. Experimental results showed an instantaneous increase of the chlorination rate as soon as UV lightwas affiliated

which demonstrated the intensified effect of UV radiation on PVC chlorination directly. Different affiliationmethods of UV light were then studied

proving that continuous UV radiation could enhance the chlorination process significantly while intermittent UV radiation was able to initiate the chlorination reaction once it was conducted. Besides

experiments were carried out to study the influences of parameters on the chlorination process such as UV wavelength

chlorination temperature

partial pressure of chlorine gas and PVC raw materials. Among all the parameters

chlorination temperature and partial pressure of chlorine gas were testified as two key factors to determine the chlorination performance. Thermal analysis of CPVC products showed that their corresponding properties such as the glass transition temperature (T

) and the homogeneity of chlorine distribution in polymer phase were improved with the increase of chlorine content.

Abstract

Dynamic characteristics of UV enhanced gas-solid PVC chlorination process were revealed by a UV-Vis spectral online analysis method. Experimental results showed an instantaneous increase of the chlorination rate as soon as UV lightwas affiliated

which demonstrated the intensified effect of UV radiation on PVC chlorination directly. Different affiliationmethods of UV light were then studied

proving that continuous UV radiation could enhance the chlorination process significantly while intermittent UV radiation was able to initiate the chlorination reaction once it was conducted. Besides

experiments were carried out to study the influences of parameters on the chlorination process such as UV wavelength

chlorination temperature

partial pressure of chlorine gas and PVC raw materials. Among all the parameters

) and the homogeneity of chlorine distribution in polymer phase were improved with the increase of chlorine content.

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