| Functionalization on Poly-p -phenylene terephthamide Fiber Using Bioinspire Dopamine Deposition and Silane Coupling Agentd |
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| DOI： |
| Key Words: aramid fiber；surface modification；dopamine；silane coupling agent |
| Author Name | Affiliation | | LI Yuan | Beijing University of Chemical Technology | | SA Rina | Beijing University of Chemical Technology | | YAN Yan | Beijing University of Chemical Technology | | WANG Wencai | Beijing University of Chemical Technology | | NING Nanying | Beijing University of Chemical Technology | | TIAN Ming | Beijing University of Chemical Technology |
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| Abstract: |
| In this study，poly-p-phenyleneterephthamide（PPTA）fibers were modified by bio-
inspired dopamine deposition and silane coupling agent functionalization.Poly（dopamine）（PDA），formed through the oxidative self-polymerization of dopamine，was deposited on the surface of PPTA fibers and acted as a secondary functionalization plate.The silane coupling agent was then grafted to the surface of PDA coated PPTA fibers，introducing adhesion active groups onto the surface of the fibers.The whole surface modification process was facile，non-toxic and controllable.The modified PPTA fibers achieved an increase of 69% in the pull out force with rubber matrix.The adhesion property after high temperature aging was also improved markedly. |
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