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| 纳米微晶纤维素对炭黑补强天然橡胶硫化特性和耐老化性能的影响（二） |
| Influence of Nanocrystalline Cellulose on the Curing Characteristics and Aging Resistance of Carbon Black Reinforced Natural Rubber |
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| DOI： |
| 中文关键词: 纳米微晶纤维素；天然橡胶；炭黑；复合材料；粘合剂RH；硫化特性；耐老化性能 |
| 英文关键词: nanocrystalline cellulose； NR； carbon black； composite materials； adhesive RH； curing characteristics；aging resistance |
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| Author Name | Affiliation | | Gu Ju | School of Material Science and Engineering， South China University of Technology | | Chen Wanjuan | School of Material Science and Engineering， South China University of Technology | | Lin Lu | School of Material Science and Engineering， South China University of Technology | | Luo Yuanfang | School of Material Science and Engineering， South China University of Technology | | Jia Demin | School of Material Science and Engineering， South China University of Technology |
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| 中文摘要: |
| 研究纳米微晶纤维素（NCC）部分取代炭黑（CB）对天然橡胶（NR）硫化特性、老化性能和热稳定性能的影响。结果表明：NCC部分取代CB，NR/NCC/CB复合材料的CB网络结构减弱，复合材料的 t 10延长，t 90缩短，转矩降低；NCC用量增大、硫化温度提高，复合材料的硫化速率常数增大；用10份NCC等量取代CB，复合材料的硫化反应活化能降低，耐热和耐高温老化性能较好；随着NCC用量增大，复合材料的5%质量损失温度有所下降，最大质量损失速率有所增大，最大质量损失温度变化不大，表观交联密度下降；加入粘合剂RH，复合材料的表观交联密度增大。 |
| 英文摘要: |
| In this study， nanocrystalline cellulose （NCC） was applied in NR by replacing part of the carbon black （CB）， and the influence on the curing characteristics， aging properties and thermal stability of the NR was investigated.With the addition of NCC， the CB filler network was weakened in the NR/NCC/CB composites， t 10 extended， t 90 shortened， and the maximum torque decreased. With the increase of addition level of NCC and elevation of curing temperature， the curing rate constant increased. With 10phr of NCC to replace equal weight of CB， the activation energy of vulcanization decreased， and the thermal stability and heat aging property were good. When the addition level of NCC increased， the temperature when the composites had 5% mass loss decreased， the maximum mass loss rate increased slightly， the temperature when the composites reached maximum mass loss changed little， and the apparent crosslink density decreased. Moreover， by adding the adhesive RH， the apparent crosslink density of the composites increased. |
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