文章摘要
用红外差谱表征橡胶的热老化
Characterization of Thermal Aging Behaviour of Rubbers with FTIR Difference Spectra
  
DOI：
中文关键词: 傅立叶转换红外光谱  热老化  NR  环氧化天然橡胶  氯化天然橡胶
英文关键词: FTIR  thermal aging  NR  ENR  CNR
基金项目:
作者单位
李思东 华南热带农产品加工设计研究所 
彭政 华南热带农产品加工设计研究所 
余和平 华南热带农产品加工设计研究所 
钟杰平 华南热带农产品加工设计研究所 
魏永才 华南热带农产品加工设计研究所 
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中文摘要:
      用傅立叶转换红外光谱(FTIR)研究了NR、环氧化天然橡胶(ENR)和氯化天然橡胶(CNR)的热老化行为。以老化前后的差减光谱表征橡胶老化过程中分子结构的动态变化，提高了灵敏度和准确性。NR与ENR的热老化同属自动催化氧化反应，产物均为羧酸、醛、酮、醚和酯等；CNR在80 ℃时开始脱HCl，并随老化温度的提高脱HCl的程度增大。
英文摘要:
      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.
Author NameAffiliation
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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