School of Materials Science and Engineering, Guangdong Key Laboratory of High Performance and FunctionalPolymer Materials, South China University of Technology, Guangzhou 510640
To strengthen the interfacial interaction between waste printed circuit boards powders (WPCBP) and polymer matrix, WPCBP was immobilized a layer of SiO2 nanoparticles to form a novel WPCBP-SiO2 hybrid filler by sol-gel method. SEM, TGA and FTIR suggested that SiO2 nanoparticles were chemically bonded onto the surface of WPCBP. Then WPCBP-SiO2 hybrid filler was modified with a silane coupling agent and incorporated in unsaturated polyester resin (UPE) matrix. The effect of WPCBP-SiO2 hybrid filler on mechanical properties, interfacial bonding and thermal stability of UPE composites were comprehensively explored. It has been confirmed that WPCBP-SiO2 hybrid filler could form a strong interfacial interaction with polymer matrix, and markedly enhance the mechanical properties and thermal stability of UPE composites. Besides, the modification of hybrid filler give further improvements of UPE composites.
Huang K, Guo J, Xu Z , et al. Recycling of waste printed circuit boards:A review of current technologies and treatment status in China[J]. Journal of Hazardous Materials, 2009,164(2-3):399.
2
Zhou Y, Qiu K . A new technology for recycling materials from waste printed circuit boards[J]. Journal of Hazardous Materials, 2010,175(1-3):823.
3
Zheng Y H, Shen Z G, Cai C J , et al. Polypropylene filled with nonmetals recycled from waste PCBs[J]. Polymer Materials Science and Engineering, 2009,25(9):154(in Chinese).
Wang X, Guo Y, Liu J , et al. PVC-based composite material containing recycled non-metallic printed circuit board (PCB) powders[J]. Journal of Environmental Management, 2010,91(12):2505.
6
Wang F, He H, Chen J Z , et al. Modifying of PE wood-plastic composite with waste printed circuit board nonmetal powder[J]. Polymer Materials Science and Engineering, 2012,28(8):174(in Chinese).
Zheng Y H, Shen Z G, Cai C J , et al. Mechanical properties of PP matrix composites filled with nonmetals recycled from waste PCB and milled glass fibers[J]. Acta Materiae Compositae Sinica, 2009,26(2):59(in Chinese).
Hong S G, Su S H . The use of recycled printed circuit boards as reinforcing fillers in the polyester composite[J]. Journal of Environmental Science & Health Part A, 1996,31(6):1345.
11
Xu B F, Lin Z D, Xian J M , et al. Preparation and characterization of polypropylene composites with nonmetallic materials recycled from printed circuit boards[J]. Journal of Thermoplastic Composite Materials, 2016,29(1):48.
12
Li S Y, Sun Y S, Liang H F , et al. Production and characterization of polypropylene composites filled with glass fibre recycled from pyrolysed waste printed circuit boards[J]. Environmental Technology, 2014,35(21):2743.
13
Fan W, Zhang C, Liu T X . Recent progress in graphene/polymer composites[J]. Acta Materiae Compositae Sinica, 2013,30(1):14(in Chinese).
Yang W B, Zhang L, Liu J W , et al. Progress in research on preparation and application of graphene composites[J]. Journal of Mate-rials Engineering, 2015,43(3):91(in Chinese).
Fan Z J, Yan J, Zhi L J , et al. A three-dimensional carbon nanotube/graphene sandwich and its application as electrode in supercapacitors[J]. Advanced Materials, 2010,22(33):3723.
18
Zhang C, Huang S, Weng W T , et al. Facile preparation of water-dispersible graphene sheets stabilized by acid-treated multi-walled carbon nanotubes and their poly(vinyl alcohol) composites[J]. Journal of Materials Chemistry, 2012,22(6):2427.
19
Lin Y, Liu S Q, Peng J , et al. The filler-rubber interface and reinforcement in styrene butadiene rubber composites with graphene/si-lica hybrids: A quantitative correlation with the constrained region[J]. Composites Part A: Applied Science and Manufacturing, 2016,86:19.
20
Jiang L, Zhang C, Liu M , et al. Simultaneous reinforcement and toughening of polyurethane composites with carbon nanotube/halloysite nanotube hybrids[J]. Composites Science and Technology, 2014,91(31):98.
21
Lin J, Zhong B C, Jia Z X , et al. In-situ fabrication of halloysite nanotubes/silica nano hybrid and its application in unsaturated polyester resin[J]. Applied Surface Science, 2017,407(15):130.
22
Xing M F, Zhang F S . Degradation of brominated epoxy resin and metal recovery from waste printed circuit boards through batch sub/supercritical water treatments[J]. Chemical Engineering Journal, 2013,219(1):131.
23
Liu Y, Deng C L, Zhao J , et al. An efficiently halogen-free flame-retardant long-glass-fiber-reinforced polypropylene system[J]. Polymer Degradation and Stability, 2011,96(3):363.