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Plasticizing Effect of camellia oleifera Seed-oil-Based Plasticizer on PVC Material Modification

Journal of Renewable Materials 2023年第7期11卷 3025-3041页

作者： Qinghua Lao Hui Zhang Zhihong Wang Puyou Jia Yongquan Li Qiaoguang Li College of Horticulture and Landscape Architecture Zhongkai University of Agriculture and EngineeringGuangzhou510225China Guangdong Provincial Key Laboratory of Silviculture Guangdong Academy of ForestryGuangzhou510225China Institute of Chemical Industry of Forest Products Chinese Academy of Forestry(CAF)Key Laboratory of Biomass Energy and MaterialCo-Innovation Center of Efficient Processing and Utilization of Forest ResourcesNanjing ForestryUniversityKey and Open Laboratory of Forest Chemical EngineeringSFANational Engineering Laboratory for Biomass Chemical UtilizationNanjing210042China College of Chemistry and Chemical Engineering Zhongkai University of Agriculture and EngineeringGuangzhou510225China

In this study,as the plasticizer,camellia oleifera seed-oil-based cyclohexyl ester(COSOCE)was prepared by the reaction of cyclohexene oxide and refined *** seed oil(RCOSO)obtained by acidification hydrolysis after *** addition,the structure of the target product was confirmed by Fourier transform infrared(FTIR)spectroscopy,nuclear magnetic resonance(NMR)spectroscopy,and Raman *** was used as plasticizer-modified polyvinyl chloride(PVC)*** structure of the COSOCE-modified PVC membranes were characterized by Raman spectroscopy and scanning electron microscopy(SEM).The properties of the COSOCE-modified PVC membrane were characterized by contact angle measurements,universal testing machine,thermogravimetric analysis(TGA),and differential scanning calorimetry(DSC).The results revealed that(1)The COSOCE-modified PVC membranes exhibit a good microscopic *** with energy-dispersive X-ray spectroscopy(EDS)and contact angle measurement results,the COSOCE-modified PVC membranes are confirmed to be a hydrophilic material.(2)The modified PVC membrane with 60%COSOCE exhibited the best mechanical *** tensile strength reached 23.56±2.94 MPa.(3)COSOCE-modified PVC material exhibited better thermal stability,with a loss rate of less than 75%at the end of the first decomposition *** with that of the dioctyl-phthalate(DOP)-modified PVC membrane,the initial decomposition temperature of PVC was increased by 1.17°C–8.17°C,and the residual rate was increased by 0.67%–5.75%.The carbon–carbon double bond in the COSOCE molecular structure can remove the free radicals generated during the degradation of PVC material and slow down the decomposition rate of *** addition,the double bond can be cross-linked partially with the PVC molecular chain containing the conjugated polyene structure,thereby increasing the movement resistance of the PVC molecular chain ***,COSOCE can replace DOP as a PVC plasticiz

关键词： Polyvinyl chloride(PVC) camellia oleifera seeds oil bio-based plasticizers camellia oleifera plant oil

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