Compatibilizing effects of polypropylene-g-itaconic acid on the polypropylene composites |
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Authors: | Jin Hoon Kim Jung Soo Kim Ji Hoon Jang Min Seong Kim Young-Wook Chang Dae Young Lim Dong Hyun Kim |
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Affiliation: | 1.Department of Human and Culture Convergence Group,Korea Institute of Industrial Technology (KITECH),Ansan,Korea;2.Department of Fusion Chemical Engineering,Hanyang University,Ansan,Korea;3.Department of Packaging,Yonsei University,Wonju,Korea |
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Abstract: | We prepared long carbon fiber (LCF)-reinforced thermoplastic composites using a compatibilizer of itaconic acid grafted polypropylene (PP-g-IA). We confirmed the structure of PP-g-IA and investigated the compatibilizing effects of PPg- IA on LCF/polypropylene composites. The tensile strength, tensile moduli, flexural strength, and flexural moduli of the composites increased with increasing PP-g-IA content in the thermoplastic composites. Using single pull-out analyzing system, we found PP-g-IA improved interfacial strength between the carbon fiber and PP matrix. The thermal properties of the composites were measured by thermogravimetric analysis (TGA). We could observe that LCF enhanced the mechanical properties and thermal decomposition temperature of the polypropylene (PP) composites, compared with neat PP. The fractured surfaces of PP/PP-g-IA/LCF composites showed that PP-g-IA was effective for improving the interfacial adhesion between LCF and PP matrix. |
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