Publication: Physico-mechanical properties of natural rubber sheets coated by polyethyleneimine-functionalized poly(methyl methacrylate) nanoparticles
Issued Date
2012-04-05
Resource Type
ISSN
10974628
00218995
00218995
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2-s2.0-84855321284
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Mahidol University
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SCOPUS
Bibliographic Citation
Journal of Applied Polymer Science. Vol.124, No.1 (2012), 49-57
Suggested Citation
Sitthi Duangphet, Somkieath Jenjob, Panya Sunintaboon, Nittaya Rattanasom, Sombat Thanawan Physico-mechanical properties of natural rubber sheets coated by polyethyleneimine-functionalized poly(methyl methacrylate) nanoparticles. Journal of Applied Polymer Science. Vol.124, No.1 (2012), 49-57. doi:10.1002/app.34991 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/13976
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Title
Physico-mechanical properties of natural rubber sheets coated by polyethyleneimine-functionalized poly(methyl methacrylate) nanoparticles
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Abstract
The surface modification of sulfur-prevulcanized natural rubber (SPNR) sheets by the polyethyleneimine-functionalized-poly(methyl methacrylate) (PMMA/PEI) nanoparticles was successfully performed via a simple dipping method. The percentage of surface coverage (C s ) of the nanoparticles on SPNR sheets was found to be affected by a variation of nanoparticle latex concentrations and immersion times. The adsorption isotherm of PMMA/PEI nanoparticles on SPNR sheets was analyzed and found to fit well to the Freundlich model. After coating, it can be observed that the presence of PMMA/PEI nanoparticles on SPNR surface had no effects over the SPNR mechanical properties e.g., tensile strength, elongation at break, and hardness. On the other hand, the coated SPNR sheets showed a reduction of surface friction coefficients and interfacial adhesion up to 45 and 59%, respectively. Furthermore, PMMA/PEI nanoparticles adsorbed on the SPNR surface was subjected to stretching and wearing conditions, and found to be stable for at least seven stretching and wearing cycles. © 2011 Wiley Periodicals, Inc.