Thermal-Oxidation Degradation of Microwave Drying Nature Rubber

Abstract:

The effects of drying methods on thermal-oxidation degradation and ageing behavior of nature rubber (NR) was investigated using Fourier transform infrared/Attenuated total reflection (FTIR-ATR) and thermogravimetric analysis. Examining the samples of thermal-oxidation ageing for 24h by FTIR-ATR spectroscopy allowed appearance of obvious carboxyl absorption of hot-air drying NR at 1723cm-1, decay of methylene stretch and C=C plane stretch during thermal-oxidation ageing process, to be monitored. TG and DTG were used to determine thermal-oxidation degradation temperature in air atmosphere and active energy using Coats-Redfern equation. Showed from the results, the degradation temperature and active energy of microwave drying NR was higher than hot-air drying, thermal-oxidation resistance was more excellent by FTIR analysis, indicating a higher thermal-oxidation stability of microwave drying NR.

• Periodical: Advanced Materials Research (Volumes 399-401)
• Pages: 1600-1603
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.399-401.1600
• Online since: November 2011
• Authors: Fu Quan Zhang, Mao Fang Huang, Mei Chen, Yong Zhou Wang, Jian He Liao
• Keywords: Ageing Behavior, Microwave Drying, Nature Rubber, Thermal-Oxidation Degradation

References

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