Epoxidized castor oil‐based diglycidyl‐phthalate plasticizer: Synthesis and thermal stabilizing effects on poly(vinyl chloride)

ABSTRACT Epoxidized castor oil‐based diglycidyl‐phthalate (ECODP) was synthesized and incorporated into poly(vinyl chloride) (PVC) for the first time. The chemical structure of the ECODP was confirmed. The plasticizing effects of ECODP as a replacement for commercial plasticizer dioctyl phthalate (D...

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Bibliographic Details
Published in:Journal of applied polymer science 2019-03, Vol.136 (9), p.n/a
Main Authors: Chen, Jie, Liu, Zengshe, Wang, Kui, Huang, Jinrui, Li, Ke, Nie, Xiaoan, Jiang, Jianchun
Format: Article
Language:English
Subjects:
Castor oil
Dioctyl phthalate
Dynamic mechanical analysis
Materials science
Mechanical properties
nanocrystals
Organic chemistry
plasticizer
poly(vinyl chloride)
Polymers
Polyvinyl chloride
Tensile tests
Thermal stability
Thermogravimetric analysis
Vinyl chloride
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Summary:ABSTRACT Epoxidized castor oil‐based diglycidyl‐phthalate (ECODP) was synthesized and incorporated into poly(vinyl chloride) (PVC) for the first time. The chemical structure of the ECODP was confirmed. The plasticizing effects of ECODP as a replacement for commercial plasticizer dioctyl phthalate (DOP) were investigated. The thermal stability and mechanical properties of PVC films before and after aging were investigated using thermogravimetric analysis (TGA), TGA‐FTIR analysis, dynamic mechanical analysis (DMA), and tensile tests. The results indicated that PVC films plasticized with ECODP significantly improved thermal stability, compatibility, and flexibility. When DOP was substituted with ECODP completely, the initial decomposition temperature, 5, 10, 50, and 70% mass loss temperatures (Ti, T5, T10, T50, and T70) increased by 24.7, 38.9, 32.0, 30.3, and 102.7 °C, respectively. The functional mechanism of the ECODP as a thermal stabilizing plasticizer and the plasticization mechanism of PVC composites were also investigated. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47142.
ISSN:0021-8995
1097-4628
DOI:10.1002/app.47142