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Manufacture and Performance of Textile-ramie Fiber Reinforced Anionic Polyamide 6 Composites
Hao Shi,Lijian Xia,Zonglei Guo,Abin Sun,Hui Wang,Ze Kan 한국섬유공학회 2019 Fibers and polymers Vol.20 No.8
A vacuum assistant resin infusion moulding (VARIM) was adopted to prepare a new-style and environmentalfriendly thermoplastic composite consisting of anionic polyamide-6 (APA-6) and textile-ramie fiber. However, the intensivepolymerization-inhibition and fiber-discoloration phenomena were found in the reactive processing. In order to overcomethese problems, two methods were used to suppress the reaction between the ramie fiber and APA-6, which are the surfacemodification of ramie fiber and a new initiator with a low activity. Finally, the inhibition and discoloration phenomena weresuppressed significantly, which overcame the major challenge during the preparation of ramie fiber reinforced APA-6composites by reactive processing. The composites showed a good polymerization during VARIM process. The tensilestrength and flexural modulus of the obtained composites were increased by 21 % and 26 % respectively compared with thatof pure APA-6. It is important to find that there were some interactions between APA-6 and ramie fiber, which produced agood interface characters. This work not only opens new avenues for the development of renewable composites, but alsofurther broadens the applications of the natural fibers.
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