| Characterization of Thermal Aging Behaviour of Rubbers with FTIR Difference Spectra |
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| DOI： |
| Key Words: FTIR；thermal aging；NR；ENR；CNR |
| Author Name | Affiliation | | Li Sidong | South china Tropical Agricultural Product Processing Design and Research Institute | | Peng Zheng | South china Tropical Agricultural Product Processing Design and Research Institute | | Yu Heping | South china Tropical Agricultural Product Processing Design and Research Institute | | Zhong Jieping | South china Tropical Agricultural Product Processing Design and Research Institute | | Wei Yongcai | South china Tropical Agricultural Product Processing Design and Research Institute |
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| Abstract: |
| The thermal aging behaviour of NR，ENR and CNR was studied by using Fourier Transform Infrared Spectroscopy(FTIR).The differrence of the spectra before aging from those after aging was used to characterize the dynamic changes of rubber molecule structure during the thermal aging.The thermal aging of NR and ENR was a self-catalyzed reaction，and their products were carboxylic acid，aldehyde，ketone，ether and ester；CNR started to dehydrochlorinate at 80 ℃ and it dehydrochlorinated faster as the temperature increased. |
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