Journal of South China University of Technology(Natural Science Edition) ›› 2012, Vol. 40 ›› Issue (4): 101-106.

• Materials Science & Technology • Previous Articles     Next Articles

Reinforcement of Natural Rubber with Nanocrystalline Cellulose as a Substitution for Carbon Black

Gu Ju  Lin Lu  Luo Yuan-fang  Jia De-min   

  1. School of Materials Science and Engineering,South China University of Technology,Guangzhou 510640,Guangdong,China
  • Received:2011-09-16 Revised:2011-10-29 Online:2012-04-25 Published:2012-03-01
  • Contact: 古菊(1961-) ，女，博士，副研究员，主要从事聚合物复合材料的制备、结构与性能研究． E-mail:psjgu@scut.edu.cn
  • About author:古菊(1961-) ，女，博士，副研究员，主要从事聚合物复合材料的制备、结构与性能研究．
  • Supported by:

    国家自然科学基金资助项目( 51173046)

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Abstract:

Natural rubber /nanocrystalline cellulose /carbon black ( NR/NCC /CB) composite was prepared by using NCC as a partial substitution for CB,and the effect of NCC on the properties of NR/CB composite was investigated. The results show that ( 1) with the addition of NCC,the elongation at break of NR/CB composite increases to more than 500%,while the permanent set decreases to less than 30%; ( 2) both the tensile strength and the tear strength of NR/NCC /CB composite are similar or superior to those of NR/CB composite,while the hardness keeps unchanged; ( 3) the abrasion resistance of the composite keeps well when the NCC substitution rate for CB ranges from 5 to 20 phr; ( 4) the flex cracking resistance of the composite improves when the NCC substitution rate is less than 15 phr; ( 5) the addition of NCC improves the thermal oxidative aging property and reduces the heat buildup due to dynamic compression; and ( 6) the temperature of heat buildup reaches its minimum value of 13.0℃ when the NCC substitution rate is 10 phr.

Key words: nanocrystalline cellulose, carbon black, reinforcement, natural rubber