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Study Of Genistein /Epoxidized Natural Rubber (ENR) Blends And Its Application For Poly (Vinyl Chloride) (PVC) Plasticization

Tang, Kangli
http://rave.ohiolink.edu/etdc/view?acc_num=akron1430243580

Abstract Details

2015, Master of Science, University of Akron, Polymer Engineering.
In this thesis, the properties of binary blends of epoxidized natural rubber(ENR) and genistein have been explored by thermal gravimetric analysis(TGA), polarized optical microscope(POM), differential scanning calorimetry(DSC), advanced polymer analyzer(APA) and dynamic mechanical analysis(DMA). Although the melt blends of ENR/genistein are partially miscible, the functional groups of the constituents can react with each other at elevated temperatures above 220 oC, resulting in cured ENR networks by genistein. The cured network showed systematic movement of the glass transition temperatures and also melting point depression at genistein rich compositions, suggestive of miscible character. The theoretical binary phase diagram was constructed in comparison with the observed melting points depression in the framework of Flory-Huggins theory of mixing and the phase field theory of crystallization. The crystal-amorphous interaction parameter was determined based on the melting point depression and heat of fusions as a function of blend compositions. The ENR/genistein system was applied to the plasticization of poly (vinyl chloride) (PVC). Due to the thermal instability of pure PVC, additional stabilizer should be used to mix PVC in an internal mixer (Brabender Plasticorder). Epoxidized soybean oil (ESBO) was chosen a stabilizer/plasticizer to PVC. The systematic shift of glass transition temperatures of PVC/ESBO/ENR/genistein was noticed in both DSC and DMA runs. ENR/genistein blends were found to suppress the glass transition temperature of PVC effectively. Last not least, the mechanical properties of PVC/ESBO/ENR/genistein blends were measured by using Instron tensile tester and the observed change of brittle to ductile properties with compositions was discussed.
Thein Kyu , Dr. (Advisor)
Avraam Isayev, Dr. (Committee Member)
Kevin Cavicchi, Dr. (Committee Member)
90 p.
Polymers

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Citations

  • Tang, K. (2015). Study Of Genistein /Epoxidized Natural Rubber (ENR) Blends And Its Application For Poly (Vinyl Chloride) (PVC) Plasticization [Master's thesis, University of Akron]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=akron1430243580

    APA Style (7th edition)

  • Tang, Kangli. Study Of Genistein /Epoxidized Natural Rubber (ENR) Blends And Its Application For Poly (Vinyl Chloride) (PVC) Plasticization . 2015. University of Akron, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=akron1430243580.

    MLA Style (8th edition)

  • Tang, Kangli. "Study Of Genistein /Epoxidized Natural Rubber (ENR) Blends And Its Application For Poly (Vinyl Chloride) (PVC) Plasticization ." Master's thesis, University of Akron, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=akron1430243580

    Chicago Manual of Style (17th edition)

akron1430243580
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© 2015, some rights reserved.Creative Commons License Study Of Genistein /Epoxidized Natural Rubber (ENR) Blends And Its Application For Poly (Vinyl Chloride) (PVC) Plasticization by Kangli Tang is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License. Based on a work at etd.ohiolink.edu.
This open access ETD is published by University of Akron and OhioLINK.