IMPROVED PROPERTIES FOR POLYPHENYLENE OXIDE/NYLON 6 ALLOY REINFORCED BY ARAMID FIBER

Abstract

Abstract: Polyphenylene oxide (PPO) is a high strength engineering plastic with high melt viscosity, while aramid fibers (AF) is a high-tech fibers with good mechanical performance and smooth surface. Thus, the impregnation effect of AF in PPO matrix is very poor. In order to prepare PPO reinforced by AF composite materials, the surface of the AF can be modifided through the plasma by adding oxygenous groups on the one hand, preparing PPO/nylon 6(PA6) blend to reduce the melting viscosity on the other hand. In this article, polyphenylene oxide/nylon 6 (PPO/PA6) alloy modified by styrene-butadiene copolymer grafted by maleic anhydride (SEBS-MAH) were studied, and the PA6/PPO/SEBS-MAH composite materials reinforced by aramid fiber were prepared. Experimental results show that PA6 can improve the processing property of PPO/PA6 system and reduce the melting viscosity. SEBS-MAH can improve the compatibility of PPO/PA6 blend system, mechanical properties and the glass transition temperature of blend. Aramid fiber (AF) can improve the PA6/PPO/SEBS-MAH mechanical properties and friction properties of blending system. And, the rigidity of the blend system was improved as shown by the Tanδ-temperature curves.

Key words: aramid fiber, polyphenylene oxide/nylon 6 alloy, compatibility, mechanical property

CLC Number:

TB332

WANG Hong-hua, MEI Qi-lin, XIA Xue, WANG Cong. IMPROVED PROPERTIES FOR POLYPHENYLENE OXIDE/NYLON 6 ALLOY REINFORCED BY ARAMID FIBER[J]. Fiber Reinforced Plastics/Composites, 2017, 0(6): 75-79.

References

[1] Rusli A, Cook W, Liang G G. Allylic monomers as reactive plasticizers of polyphenylene oxide. Part II: Cure kinetics[J]. European Polymer Journal, 2011, 47(9): 1785-1794.
[2] 梅启林, 张建, 梁奇凡, 等. 可交联单体改性聚苯醚的性能研究[J]. 武汉理工大学学报, 2014, 36(1):39-43.
[3] Picchioni F, Casentini E, Passaglia E, et al. Blends of SBS triblock copolymer with poly(2,6-dimethyl-1,4-phenylene oxide)/polystyrene mixture[J]. Journal of Applied Polymer Science, 2003, 88(11): 2698-2705.
[4] Wang X D, Feng W, Li H, et al. Compatibilization and toughening of poly(2,6-dimethyl-1,4-phenylene oxide)/polyamide 6 alloy with poly(ethylene 1-octene): Mechanical properties, morphology, and rheology[J]. Journal of Applied Polymer Science, 2003, 88: 3110-3116.
[5] Rao Y, Waddon A J, Farris R J. The evolution of structure and properties in poly(p-phenylene terephthalamide) fibers[J]. Polymer, 2001, 42(13): 5925-5935.
[6] 江海亮, 应丽艳, 雷大喜, 等. 马来酸酐(MAH)接枝SEBS及其对PPO/PA6合金性能的影响[J]. 高校化学工程学报, 2009, 23(6):979-983.
[7] Liu L, Huang Y D, Zhang Z Q, et al. Ultrasonic treatment of aramid fiber surface and its effect on the interface of aramid/epoxy composites[J]. Applied Surface Science, 2008, 254: 2594-2599.
[8] 季家友, 苏奇, 陈卓, 等. 芳纶Ⅲ的氧气等离子的表面改性[J]. 武汉工程大学学报, 2012, 34(6): 62-64.
[9] Wang S, Li B, Zhang Y. Compatibilization of Poly(2,6-dimethyl-1,4-phenylene oxide)/Polyamide 6 Blends with Styrene-Maleic Anhydride Copolymer: Mechanical Properties, Morphology, Crystallization, and Melting Behavior[J]. Journal of Applied Polymer Science, 2010, 118: 3545-3551.
[10] 江海亮, 应丽艳, 雷大喜, 等. 马来酸酐(MAH)接枝SEBS及其对PPO/PA6合金性能的影响[J]. 高校化学工程学报, 2009, 23(6): 979-983.
[11] Li Y J, Shimizu H. Novel morphologies of poly(phenylene oxide) (PPO)/polyamide 6 (PA6) blend nanocomposites[J]. Polymer, 2004, 45: 7381-7388.
[12] Chen X S, Zhang S, Xu G Z, et al. Mechanical, Flammability, and Crystallization Behavior of Polypropylene Composites Reinforced by Aramid Fibers[J]. Journal of Applied Polymer Science, 2012, 125: 1166-1175.
[13] Nie W Z, Li J,Cai C L. Friction and wear properties of PA surface treated aramid fibre reinforced thermoplastic polyimide composite[J]. Plastics, Rubber & Composites, 2010, 39(1): 25-27.
[14] 杨菁菁, 王琛, 周健. SEBS增韧PPO/PA6合金结构与性能研究[J]. 塑料科技, 2014, 4(8): 48-52.
[15] Pothan L A, George C N, John M J, et al. Dynamic Mechanical and Dielectric Behavior of Banana-Glass Hybrid Fiber Reinforced Polyester Composites[J]. Journal of Reinforced Plastics and Composites, 2010, 29(8): 1131 - 1145.