| Influence of Vulcanisate Sample Preparation on Infrared Spectroscopic Analysis |
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| DOI： |
| Key Words: vulcanisate；infrared spectroscopic analysis；sample grain size；sample concentration |
| Author Name | Affiliation | | Zhou Cuiwei | Nanjing University | | Zhu Wei | Nanjing University | | Dai Qingping | Nanjing University | | Zhang Shiqi | Nanjing University of Technology |
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| Abstract: |
| Grain size of the vulcanisate sample exerts a tremendous influence on the concentration of α-methylene in the vulcanisate network but a slightest effect on the concentration of the methylside groups. A reduced sample grain size will result in a strong oxidation，thus the KBr disc technique for infrared spectroscopic analysis requires a strict control of the sample grain size. Furthermore，the sample concentration will also have a considerable influence on the re suit of the analysis. When the sample is pulverised into grains of less than 2μm and the mass ratio of the sample and KBr is in the range of 1:1000～5:1000，a spectrum of high resolution can be obtained. |
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