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Effect of Temperature on Calcium Carbonate Deposition in Situ on Bamboo Fiber and Polymer Interfaces

Haitao Cheng, Jie Gao, Ge Wang, Sheldon Q. Shi, Shuangbao Zhang, Liping Cai


The objective of this work was to investigate the effect of different reaction temperatures on the mechanical and surface (interface) properties of calcium-carbonate (CaCO3)-filled bamboo fibers and polypropylene (PP) composites. With an ionic reaction of sodium carbonate and calcium chloride aqueous solution at various bath temperatures, CaCO3 particles were successfully deposited in situ on bamboo fibers. Polymer composites were fabricated using treated bamboo fibers as the reinforcement and PP as the matrix. Tensile tests of single fibers and PP composites were performed to determine the mechanical properties at different conditions. Results showed that the treatments improved compatibility between bamboo fibers and PP matrix, and the crystallinity of inorganic materials was affected by the treatment temperature. Compared with the composites reinforced with untreated bamboo fibers, the tensile strength and modulus of composites reinforced with treated fibers increased by 14.58 and 19.66%, respectively.


Calcium carbonate;bamboo fibers;interface/interphase;poly(propylene) (PP);composites;mechanical properties

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