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Aramid fiber coated with aramid nanofiber coating to improve its interfacial properties with polycarbonate
Polymer Composites ( IF 4.8 ) Pub Date : 2023-02-14 , DOI: 10.1002/pc.27263 Jiyin Song 1 , Chaofeng Chen 2 , Xue Du 1 , Xiaoling Sun 1 , Peng Zhang 1 , Yufang Ma 1 , Haijuan Kong 1 , Muhuo Yu 3
Polymer Composites ( IF 4.8 ) Pub Date : 2023-02-14 , DOI: 10.1002/pc.27263 Jiyin Song 1 , Chaofeng Chen 2 , Xue Du 1 , Xiaoling Sun 1 , Peng Zhang 1 , Yufang Ma 1 , Haijuan Kong 1 , Muhuo Yu 3
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This study addresses the effect of the coatings prepared from aramid nanofibers (ANFs) on the surface treatment of aramid fiber and reinforced polycarbonate (PC) composite (AF/PC). Aramid fiber's smooth, inert surface bonds poorly with polycarbonate. In this research, the PC-ANF coating was made by the PC/CH2Cl2 solution, which was modified by aramid nanofibers to improve the interfacial adhesion and compatibility of aramid fiber/PC composites. What's more, the silane (KH570) was added to improve the dispersion and interfacial strength of ANF and PC. The results showed the water contact angle of the aramid fiber modified by PSi-ANF coating was reduced, indicating the modified fiber has a better wettability. The interfacial bonding strength between PC and aramid fiber increased by 77.2%. The AF/PC composites were prepared by hot-compression, which the aramid fiber wovens treated with P-ANF coating, PSi-ANF coating. The tensile strength, flexural strength, interlaminar shear strength, and impact strength of the AF/PC composite reinforced by AF treated with PSi-ANF containing 2.0 wt% ANF increased by 62.0%, 81.9%, 49.5%, and 27.6%, respectively. Therefore, this study demonstrates that incorporating ANF interphase may offer an innovative and practical way for enhancing the interface bonding properties of aramid-reinforced composites.
中文翻译：
芳纶纳米纤维涂层芳纶纤维改善其与聚碳酸酯的界面性能
本研究探讨了芳纶纳米纤维 (ANF) 制备的涂层对芳纶纤维和增强聚碳酸酯 (PC) 复合材料 (AF/PC) 表面处理的影响。芳纶纤维光滑、惰性的表面与聚碳酸酯的粘合性很差。本研究采用PC/CH 2 Cl 2制备PC-ANF涂层溶液，通过芳纶纳米纤维对其进行改性，以提高芳纶纤维/PC 复合材料的界面附着力和相容性。此外，还添加了硅烷 (KH570) 以提高 ANF 和 PC 的分散性和界面强度。结果表明，经PSi-ANF涂层改性的芳纶纤维的水接触角减小，表明改性纤维具有更好的润湿性。PC与芳纶纤维的界面结合强度提高了77.2%。采用热压法制备AF/PC复合材料，芳纶纤维编织物经P-ANF涂层、PSi-ANF涂层处理。用含有 2.0 wt% ANF 的 PSi-ANF 处理的 AF 增强的 AF/PC 复合材料的拉伸强度、弯曲强度、层间剪切强度和冲击强度分别提高了 62.0%、81.9%、49.5% 和 27.6%。
更新日期：2023-02-14
中文翻译：
芳纶纳米纤维涂层芳纶纤维改善其与聚碳酸酯的界面性能
本研究探讨了芳纶纳米纤维 (ANF) 制备的涂层对芳纶纤维和增强聚碳酸酯 (PC) 复合材料 (AF/PC) 表面处理的影响。芳纶纤维光滑、惰性的表面与聚碳酸酯的粘合性很差。本研究采用PC/CH 2 Cl 2制备PC-ANF涂层溶液，通过芳纶纳米纤维对其进行改性，以提高芳纶纤维/PC 复合材料的界面附着力和相容性。此外，还添加了硅烷 (KH570) 以提高 ANF 和 PC 的分散性和界面强度。结果表明，经PSi-ANF涂层改性的芳纶纤维的水接触角减小，表明改性纤维具有更好的润湿性。PC与芳纶纤维的界面结合强度提高了77.2%。采用热压法制备AF/PC复合材料，芳纶纤维编织物经P-ANF涂层、PSi-ANF涂层处理。用含有 2.0 wt% ANF 的 PSi-ANF 处理的 AF 增强的 AF/PC 复合材料的拉伸强度、弯曲强度、层间剪切强度和冲击强度分别提高了 62.0%、81.9%、49.5% 和 27.6%。
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