科研之友
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摘要
The objective of this work was to study a novel foam prepared from natural rubber grafted with cassava starch (NR-graft-CSt) with the addition of super cell (SC) as a blowing agent. The effects of the blowing agent and grafting versus non-grafting of the starch and the natural rubber on the properties of the foam were investigated. The results show that the optimum curing time decreases with increasing SC loading as observed using a moving die rheometer. The porosity, the number of cells per unit volume and the cell size of the NR/CSt blend increase as a function of the SC loading in the foam. A more open cell structure is produced by higher loadings of SC. The greatest number of cells per unit volume is found at 2 and 6 phr SC for NR-graft-CSt and NR/CSt blend, respectively. The foam produced was used as an absorbent for oil. The NR-graft-CSt foam shows a maximum percentage oil absorption of around 7 g g(-1). The NR-graft-CSt foam is able to be reused as an oil absorbent for a maximum number of over 30 times. The NR-graft-CSt foam shows better toluene resistance than the NR/CSt blend.
- 出版日期2016-5
