Synthesis and Application of Environmentally Friendly Plasticizer 1,6-Hexanediol Oleate
To address the high costs and environmental concerns of current chemical plasticizers,this study used oleic acid(OA)and 1,6-hexanediol(HDO)as raw materials.These were subjected to esterification to produce the plasticizer 1,6-hexanediol oleate(HD),followed by epoxidation to obtain epoxidized 1,6-hexanediol oleate(EHD).The impact of synthesizing these plasticizers at different temperatures on the properties of PVC films was investigated.Testing and characterization of the PVC films plasticized with the products at these temperatures revealed that the optimal reaction temperature for esterification was 130℃.Specifically,PVC films plasticized with HD synthesized at 130℃showed a tensile elongation at break of 712.6%,indicating excellent mechanical properties.After epoxidation to EHD,the elongation at break increased to 743.6%,demonstrating that epoxidation further enhances the mechanical performance of PVC films plasticized with these compounds.Moreover,both HD and EHD plasticized PVC films synthesized at 130℃exhibited good stability in water and resistance to migration.Therefore,130℃was identified as the optimal reaction temperature for HD synthesis.Epoxidized EHD showed superior heat resistance,mechanical properties,and migration resistance.These findings provide theoretical support for the synthesis and application of biomass-based plasticizers.
PlasticizersEsterification reaction temperaturePlasticized film properties
万方数据
维普
