| Study on Thermal-oxidative Aging Mechanism of Neoprene Based on a Variety of Microscopic Characterization Methods |
| Received:January 20, 2016 Revised:January 20, 2016 |
| DOI： |
| Key Words: nuclear magnetic resonance; scanning electron microscope; infrared spectroscopy; crosslink density ; thermal-oxidative aging |
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| Abstract: |
| In this paper, the method of swelling, nuclear magnetic resonance (NMR), scanning electron microscope (SEM) and infrared spectroscopy (FTIR) were used to characterize the microstructure of neoprene during the thermal-oxygen aging process. Results showed that: crosslink density increased with aging time prolonged and the higher the aging temperature, the bigger of the crosslink density, and declined in late stage of aging; the micro morphology of neoprene changed particulate matter into stalemate; the peak of C=C bond in the molecule decreased with the increase of the aging temperature, and the peak value of the C-Cl bond changed slightly. |
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