Fiber reinforced PVC composites is prepared by melt blending method with silane coupling agent γ-Aminopropyltriethoxysilane(γ APS)modified bacterial cellulose(BC)as a reinforcing agent and plasticizer migration agent and tributyl acetylcitrate(ATBC)as an environmentally friendly plasticizer.The effect of the amount of modified nano-crystalline cellulose on the prepared BC/PVA composite is investigated,and the structure,micromorphology,mechanical properties and plasticizer migration test of the composite are characterized.The results show that the PVC composite containing 1％modified bacterial cellulose has the best performance,with a 95.39％increase in tensile strength compared with the original PVC.At room temperature(25 ℃),the plasticizer migration in deionized water,ethanol and cyclohexane is reduced by 36.87％,39.43％and 27.23％,respectively,and the inhibition effect is still good even at high temperature(60 ℃).The high-strength and low plasticizer migration PVC composite material prepared can be applied in fields such as biomedical and children's toys.
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