| Morphology and properties of EPDM/Na-MMT nanocomposites prepared with in-situ organic modification |
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| DOI： |
| Key Words: in-situ organic modification；EPDM；Na-MMT；nanocomposite；morphology；physical properties |
| Author Name | Affiliation | | WANG Shao-hui | Shanghai Jiaotong University | | REN Wen-tan | Shanghai Jiaotong University | | ZHANG Yong | Shanghai Jiaotong University | | PENG Zong-lin | Shanghai Jiaotong University | | ZHANG Yin-xi | Shanghai Jiaotong University |
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| Abstract: |
| The EPDM/Na-MMT nanocomposites were prepared with in-situ organic modification，in which EPDM，Na-MMT and an intercalatant were directly mixed and the effects of different intercalatants on morphology and physical properties of nanocomposites were investigated.The results showed that the addition of Na-MMT and intercalatant delayed the vulcanization of EPDM and decreased the crosslink density of its vulcanizate；the physical properties of EPDM/Na-MMT nanocomposite prepared with in-situ organic modification were much better than those of unmodified nanocomposite and similar to those of exfoliated EPDM/OMMT nanocomposite；and Na-MMT existed in EPDM matrix in 3 micromorphologies，i.e.totally exfoliated，intercalated and unintercalated micromorphologies，and the presence of unintercalated Na-MMT had little effect on the reinforcement of totally exfoliated Na-MMT to EPDM. |
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