期刊
MACROMOLECULES
卷 50, 期 18, 页码 7211-7221出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.macromol.7b01663
关键词
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资金
- China Scholarship Council (CSC) [201606150006]
- Science and Technology Project of Guangdong Province [2015B010122002]
- Science and Technology Project of Guangzhou [201508020090]
- LabEx Tec 21 (Investissements d'Avenir) [ANR-11-LABX-0030]
- PolyNat Carnot Institut (Investissements d'Avenir) [ANR-11-CARN-030-01]
Cellulose, especially cellulose nanocrystal and cellulose nanofibril, has captured much attention as a bio-based candidate for the reinforcement of elastomers, but data in the use of regenerated cellulose (RC) from alkaline-urea-aqueous system as reinforcing agent remain scarce. In this contribution, fully bio-based hybrids were produced by flocculating a mixture of natural rubber (NR) latex and cellulose alkaline urea aqueous solution, during which NR latex particles were demulsificated to form the polymeric matrix while the porous honeycomb-like RC phase was also generated due to the coagulant-induced gelation, indicating that both the matrix and the filler were synchronously in situ formed by the bottom-up route. RC possesses a unique honeycomb-like structure which apparently could induce extensive physical entanglements, making the filler tightly interlocked with the matrix and therefore favoring the stress transfer. Predictably, RC;without any chemical modification, could endow NR with a pronounced reinforcement. Overall, this work provides (0 a unique inspiration for reinforcing NR with honeycomb-like cellulose and (ii) a better understanding of how could RC truly reinforce NR composites.
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