Publication: Composite natural rubber based latex particles: A novel approach
Issued Date
2005-02-07
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ISSN
00323861
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2-s2.0-12444309816
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Mahidol University
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SCOPUS
Bibliographic Citation
Polymer. Vol.46, No.4 SPEC. ISS. (2005), 1373-1378
Suggested Citation
K. Sanguansap, T. Suteewong, P. Saendee, U. Buranabunya, P. Tangboriboonrat Composite natural rubber based latex particles: A novel approach. Polymer. Vol.46, No.4 SPEC. ISS. (2005), 1373-1378. doi:10.1016/j.polymer.2004.11.074 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/16453
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Title
Composite natural rubber based latex particles: A novel approach
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Abstract
The oil resistance of natural rubber (NR) film could be effectively improved by using the heterocoagulation of large NR particle with small polychloroprene (CR) particles. In the preparation of NR/CR composite particle with a core-shell structure, a nonionic surfactant whose molecule bears poly(ethylene oxide) (PEO) was adsorbed on CR particles and allowed to form complexes between PEO and indigenous surfactant (protein-lipid) on the NR particle surface. Composite latex particle obtained was characterised by particle size, zeta potential and glass transition temperature measurements and the data indicated the presence of CR on the outer layer of composite particle. Better oil resistance of film casted from heterocoagulated latex when compared to that of NR film confirmed the NR/CR core-shell structure. The epoxidised natural rubber (ENR), crosslinked ENR and/or skim latex particles were investigated in order to replace the use of CR in the heterocoagulation process. © 2004 Elsevier Ltd. All rights reserved.