Green Secondary Plasticizer/Thermal Stabilizer in PVC Processing
Main Article Content
Abstract
Replacing 10 php DOP plasticizer by ESO has slightly increased tensile properties of PVC. A variety of media were used to study the leaching property of PVC and the results showed that the presence of ESO as a secondary plasticizer improved the leaching characteristic. There was slight difference in the hardness of the PVC samples with and without the ESO. In general, the PVC material became softer when DOP was partly replaced by ESO. The hardness of both samples became smaller after soaking in water, 30 wt.% acetic and 10 wt.% KOH solution and much bigger in other media. After immersion in n-hexane, the 60/0 sample blistered and became very hard, while the hardness of 50/10 sample increased only 12%. The morphology of fractured surface of the samples after soaking in n-hexane has clearly demonstrated this result. The replacing 10 php DOP by ESO has been also improved remarkably migration characteristic, thermal properties, and movement and volatilization in hot air. That means, ESO could be used as a secondary plasticizer/thermal stabilizer in PVC formulation.
Keywords
Green plasticizer, epoxidized soybean oil, PVC
Article Details
References
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[8]. O. Fenollar, D. Garcia-Sanoguera, L. SanchezNacher, J. Lopez, R. Balart. Effect of the epoxidized linseed oil concentration as natural plasticizer in vinyl plastisols. J. Mater. Sci. 45, pp. 4406-4413, 2010. https://doi:10.1007/s10853-010-4520-6
[9]. M. P. Arrieta, M. D. Samper, M. Jiménez-López, M. Aldas, J. López. Combined effect of linseed oil and gum rosin as natural additives for PVC. Ind. Crops Prod. 99, pp. 196-204, 2017. https://doi.org/10.1016/j.indcrop.2017.02.009
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[11]. D. Balkose, T. O. Egbuchunam, F. E. Okieimen. Formulation and properties evaluation of PVC/(Dioctyl Phthalate)/(Epoxidized Rubber Seed Oil) plastigels. J. Vinyl Addit. Technol. 14(2), pp. 65-72, 2008. https://doi.org/10.1002/vnl.20142
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[15]. Nguyen Duy Toan, Tran Thi Thanh Van, Đo Quang Tham, Nguyen Vu Giang, Nguyen Thuy Chinh, Thai Hoang. Fabrication and property investigation of composite materials PVC/a mixture of black coal and denatured fly ash. Journal of Chemistry 55 (1), pp. 86-90, 2017.
[16]. Jie Chen, Xiaoying, Yigang Wang, Jinrui Huang, Ke Li, Xiaoan Nie, Jianchun Jiang. Epoxidized dimeric acid methyl ester derived from rubber seed oil and its application as secondary plasticizer. J. Appl. Polym. Sci. 133(34), pp. 43668, 2016. https://doi.org/10.1002/app.43668
[17]. Nguyen Thi Thuy, Vu Minh Duc. The epoxidized linseed oil as a secondary plasticizer in PVC processing. Vietnam J. Chem. 58 (4), pp. 533-538, 2020. https://doi.org/10.1002/vjch.202000023