| Influence of in-situ modification of carbon black on the properties of NR compounds |
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| DOI： |
| Key Words: NR；carbon black；bound rubber；cross-linking density；in-situ modification |
| Author Name | Affiliation | | LIU Xiao-li | Beijing University of Chemical Technology | | SONG Shuai-shuai | Beijing University of Chemical Technology | | LI Wen-ji | Beijing University of Chemical Technology | | WU You-ping | Beijing University of Chemical Technology |
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| Abstract: |
| The carbon black was in-situ modified by NR at high temperature by using rheomix mixer to prepare GCB，and NR/carbon black blend(KCB) was prepared by using two-roll mill at room temperature.The GCB/NR and KCB/NR vulcanizates were prepared，and their properties were investigated.The results showed that，the thermal stability of GCB was better and its bound rubber content was higher when compared with KCB；the cross-linking density，modulus，compression set and storage modulus of GCB/NR vulcanizates were higher，and tensile strength and resilience were lower when compared with KCB/NR vulcanizates at the same addition level of carbon black；the fatigue resistance of GCB/NR vulcanizates were better than that of KCB/NR vulcanizates when the addition level of carbon black was less than 60 phr. |
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