| 蒙脱土/BR复合材料的结构和性能研究 |
| Structure and properties of montmorillonite/BR composite |
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| DOI： |
| 中文关键词: 蒙脱土 BR 复合材料 相对交联密度 |
| 英文关键词: montmorillonite BR composite relative crosslink density |
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| 中文摘要: |
| 采用熔融共混法制备蒙脱土（MMT）/BR复合材料，研究MMT及其改性产品和硫化体系对复合材料结构和性能的影响。结果表明，Na-MMT，DK1N和DK4均能明显缩短胶料的焦烧时间和正硫化时间；与硫化剂DCP硫化体系相比，硫黄硫化体系有利于有机蒙脱土插层的进行，但也可造成部分层片受限；制备过程对DK1N/BR复合材料中DK1N层间距的影响较为明显；与BR相比，硫黄硫化MMT/BR复合材料相对交联密度减小，硫化剂DCP硫化复合材料相对交联密度增大；MMT/BR复合材料相对交联密度由小到大顺序为DK1N/BR，DK4/BR和Na-MMT/BR复合材料。 |
| 英文摘要: |
| 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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