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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