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- 저자 : Songhang Wang (검색결과 1 건)
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Delong Hou,Songhang Wang,Jinming Chang,Zhou Xu,Qi Zeng,Zhonghui Wang,Yongcheng Yang,Jun Yan,Yi Chen 한국섬유공학회 2020 Fibers and polymers Vol.21 No.8
Plasticizers that enable flexible polyvinyl chloride (PVC) are usually combustible, restricting the application ofPVC in fire-prone scenarios. In this context, intrinsically flame-retardant plasticizers displaying dual function continue to bethe focus of intensive research. Despite their efficiency, the majority of these dual-functional plasticizers previously reportedcontain halogen elements, which, once ignited, emanate toxic and potentially carcinogenic substances, along with toxic gasesand smoke, polluting the environment, damaging the biota, and threatening human health. Here, we report a strategy to obtaina halogen-free, intrinsically flame-retardant PVC bio-plasticizer that harnesses the phenolic hydroxyl of naturally occurringcardanol and covalent attachment of an organophosphate moiety. When combined with di-(2-ethylhexyl) phthalate (DOP),the organophosphate-containing cardanol is qualified as a co-plasticizer, while endowing the PVC materials with flameretardancy. Unlike inorganic flame-retardants, the engineered cardanol is compatible with PVC such that the mechanicalproperties of the PVC materials are not compromised. The rationale underlying the present effort may provide guidance fordeveloping sustainable alternatives to halogen-containing plasticizers to address the sustainability challenge now confrontingPVC industry.
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