Abstract
Epoxidized castor oil (ECO) and castor oil phosphate ester (COPE) were synthesized. Structure of two functionalized castor oil was characterized with FTIR and 1H NMR. Property of poly (vinyl chloride) PVC blends plasticized with ECO and (COPE) as secondary plasticizer was studied. The results indicated that thermal stability of plasticized PVC blends was improved, LOI value of PVC blends cooperated with COPE could reach 27.8%, flame retardant performance of COPE was put into effect by promoting polymer carbonization and forming a consolidated and thick flame retardant coating, which is effective to prohibit the heat flux and air incursion.
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