| Structure and properties of montmorillonite/BR composite |
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| DOI： |
| Key Words: montmorillonite；BR；composite；relative crosslink density |
| Author Name | Affiliation | | DONG Wei | Shanghai Jiaotong University | | WAN Chao-ying | Shanghai Jiaotong University | | ZHANG Yong | Shanghai Jiaotong University | | ZHANG Yin-xi | Shanghai Jiaotong University |
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| Abstract: |
| The effects of the montmorillonite(MMT) and its modified products，including Na-MMT and organic montmorillonite(OMMT)，as well as the curing system，on the structure and properties of MMT/BR composite prepared by melting mixing method，was investigated.The results showed that，the scorch time and optimum curing time of rubber compound reduced significantly by using Na-MMT，DK1N? OMMT and DK4? OMMT；compared to DCP curing system，sulfur curing system enhanced the intercalation of OMMT，but could cause confined space by part of the silicate layers；the preparation method had significant effect on the layer spacing of DK1N? OMMT in the DK1N/BR composite；the relative crosslink density of sulfur-cured MMT/BR composite decreased and that of DCP-cured composite improved compared to that of BR；the relative crosslink density of MMT/BR composite was in the order of DK1N/BR＜DK4/BR＜Na-MMT/BR. |
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