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Plasticization and thermal behavior of hydroxyl and nitrogen rich groups-containing tung-oil-based esters plasticizers for PVC

Abstract

Hydroxyl and nitrogen rich groups-containing tung-oil-based esters (GEHTMA-1, GEHTMA-2, GEHTMA-3 and GEHTMA-4) plasticizers were successfully synthesized from tung-maleic anhydride and utilized to plasticize poly (vinyl chloride) (PVC). In comparison to petroleum-based plasticizers (e.g. DOTP), the mechanical test show that bio-based GEHTMA-3 displays better mechanical property, which means GEHTMA-3 could endow PVC resin with well-balanced properties of flexibility and strength. With the addition of GEHTMA-3 into DOTP, PVC/DOTP/GEHTMA-3 exhibit better mechanical properties, plasticization performance, migration resistance and thermal stability compared with PVC/DOTP system. Above all, PVC/28DOTP/12GEHTMA-3 shows the highest tensile strength and elongation of 32.19 MPa and 345.20%, respectively. PVC/32DOTP/8GEHTMA-3 displays the best thermal stability. The superior performance is attributed to the molecular interaction of GEHTMA-3, DOTP with PVC. The interaction is originated from the simultaneous introduction of hydroxyl, epoxy, benzene ring, ester and nitrogen rich groups into the GEHTMA-3 structures. Besides, GEHTMA-3 presented a good miscibility with PVC resin, particularly when a mixture of DOTP and GEHTMA-3 was used. In addition, possible plasticization of PVC/DOTP/GEHTMA-3 system was presented. Thermal stability of PVC/DOTP/GEHTMA-3 samples was also studied.

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Publication details

The article was received on 19 Sep 2017, accepted on 21 Dec 2017 and first published on 21 Dec 2017


Article type: Paper
DOI: 10.1039/C7NJ03578K
Citation: New J. Chem., 2017, Accepted Manuscript
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    Plasticization and thermal behavior of hydroxyl and nitrogen rich groups-containing tung-oil-based esters plasticizers for PVC

    M. Wang, X. Song, J. Jiang, J. Xia, H. Ding and M. Li, New J. Chem., 2017, Accepted Manuscript , DOI: 10.1039/C7NJ03578K

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