Citation: Cai Li-Hai, Qi Zhi-Guo, Xu Jun, Guo Bao-Hua, Huang Zhong-Yao. Thermo-oxidative degradation of Nylon 1010 films: Colorimetric evaluation and its correlation with material properties[J]. Chinese Chemical Letters, ;2017, 28(5): 949-954. doi: 10.1016/j.cclet.2016.11.017 shu

Thermo-oxidative degradation of Nylon 1010 films: Colorimetric evaluation and its correlation with material properties

Cai Li-Hai ^a,1 ,
Qi Zhi-Guo ^a,1 ,
Xu Jun ^a ,
Guo Bao-Hua ^a,, ,
Huang Zhong-Yao ^b

a.
Key Laboratory of Advanced Materials of Ministry of Education, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
b.
Institute of Petroleum, Logistical Support Department, CMC, Beijing 102300, China

Corresponding author: Guo Bao-Hua, bhguo@mail.tsinghua.edu.cn

Received Date: 14 September 2016
Revised Date: 31 October 2016
Accepted Date: 4 November 2016
Available Online: 18 May 2016

Figures(10)

The thermo-oxidative aging behaviors of Nylon 1010 films were studied by various analytical methods, such as measuring the chromaticity, relative viscosity, carbonyl index, UV absorbance at 280 nm and elongation at break of the aged films. The thermo-oxidative aging plots of the results obtained via these various methods at different temperatures are subjected to the time-temperature superposition analysis, which are found to be well superposed. The b^* values are used as X axis and the other results, i.e., relative viscosity, carbonyl index, UV absorbance at 280 nm and elongation at break, are used as Y axis, respectively. The relationship between the b^* values and the other results is obtained, from which we can derive the changes of physical and chemical properties at different b^* values. Since the b^* values can be quickly determined by using a portable spectrophotometer, the on-line evaluation of the thermo-oxidative aging of Nylon 1010 can be realized.
- Nylon 1010,
- Colorimetric evaluation,
- Thermo-oxidative degradation,
- Carbonyl index,
- UV absorbance,
- Elongation at break,
- Activation energy
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