| Summary: | 碩士 === 朝陽科技大學 === 應用化學系碩士班 === 99 === In this study, the pineapple leaf fiber (PALF) was chemically modified. Subsequently, this modified fiber and polypropylene- graft-maleic anhydride (MAPP) were added to the polypropylene (PP), to form novel fiber- reinforced green composites. The procedures for the surface chemical modifications of PALF were as follows: The PALF was chopped and screened, then treated with NaOH to remove the impurity on the surface of PALF. Subsequently, the fiber was treated using a Z-6020 silane coupling agent to change the polarity of its surface. The heat deflection temperature (HDT) of the composite can increase from 112.5℃ to 158.1°C. In addition, the tensile strength can increase from 26.45MPa to 32.48MPa. Furthermore, this type of reinforced PP would be more environmentally friendly than the artificial additive-reinforced one. It can also effectively reduce and re-use the agriculture wastes, as well as lower the costs of the materials.
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