31 2 2014 6 JOURNAL OF SHANGHAI SECOND POLYTECHNIC UNIVERSITY Vol. 31 No. 2 Jun. 2014 : 1001-4543(2014)02-0114-07,,, (, 201209) :,, : ; ; ; : TQ325 : A 0 (PS) 1 200, 180, 70 %, 10 % 30 % [1],, 70 % PS, 30 % [2],,,, PS,,,, 2013 5 1, 14 [3],,,,, (HIPS) [4], [5],,, 1 1.1,,, PS 1 % PS 1 PS, PS Fig. 1 PS PS PS 1 PS The solvent technology route of regenerating PS foam plastics : 2013-12-31 : (1966 ),,,,,, hpxu@sspu.edu.cn : (No. 10ZZ132) (No. J51803)
2,,, : 115 6 26, 1 : 2, 0.82 g/ml, 90 % PS [6], 1 : 3, 5, [7],,,,, [8],, [9],,,, PS, [10] Rena,, 25 : 1 :, ; PS, ;, ;,,,,, PS, 10 mm,,, 20 : 1, 5 mm,, 40 : 1,,,,,,,, ;,,,,,,,,, ;,,,,, 1.2 PS, PS,,,, 5, 80 %, 90 % [1] 2 PS Fig. 2 2 The melt extrusion technology route of regenerating granulation,,,,,,,,, ;,,,
116 2014 31, 1.5 t/h;,,,,,, ;,,,,, 2 2.1,,,, [11-14] 70 % 20 % 10 % ( ) [13],,,,, 2.2,,,,,,,,,,,, 10, 3 [8],,,,, PVA 2.3, (BPS), 60 %, ABS PET PA Ferro [15] BPS, PS BPS, BPS Ferro Chek68PB BPS, [16],,, 40 50 C PS PS : : : : 30 40 : 15 20 : 6 8 : 1.5 2.0 : 30 40 [17] ( 5 : 1),,, ph PS [18-19] PS,,, PS [20], Ca 2+ Mg 2+ PS, ( ), [21], PS (NaPSS) PS
2,,, : 117, (PAM), 30 % 60 %, PS, : : 50 : 5 : 0.5, 5 h [22-24],,, COD PS,,,, : PS 4.1 g, 14.3 ml, 0.2 0.4 ml, 4.1 g, 4.1 g, 0.25 0.3 g [25] 1,1,1-,, 2.4, PS PS,, PS,,, PS-I, PS-I,, PS, PS,, PS, 40 % [26], 4, HM, [27] PS PS,,,,,,,, 10 cm 95 cm [28],,,, PS [29-31] PS,,, PS, PS 8, 8 3 PS 3 PS Fig. 3 The low foaming process diagram of PS free extrusion [32],,,,,, (DOP), 0.3 %,
118 2014 31 0.25 %; 1 3 g/min, 1.5 2.5 g/min,,,,, [33] NaHCO 3,,,,,,,,, CaCO 3,,,,,, 2.5,,,, H 2 C 1 C 4 PS, PS, 450 C 40 % 5 % 5 % [34] MITSUI 420 C, 29 % 29 % IKV, 450 C 79.8 %, 62.5 % 20.5 %, 320 C 830 C 62 %,,,, 500 C, 90 % [8] PS, [35] PS,,, 500 C 78.3 %,, [36],,,, 63 % [37-38], PS, 320 390 C,, 62 % 65 % 12 % 15 % 8 % 10 % α- 10 % 13 % Y, PS,,, PS,, 3,,,,,,,
2,,, : 119,,,,,,,, :,, ;, ;, HIPS ABS, : [1],,. [J]., 2012, 5(6): 30-48. [2] Al-SALEM S M, LETTIERI P, BAEYENS J. Recycling and recovery routes of plastic solid waste (PSW): A review [J]. Waste Management, 2009, 29(10): 2625-2643. [3]. 14 [J]., 2013(5): 14-14. [4] KIM Y J, KANG D H, KIM M G, et al. Analytical study on the RoHS of plastic from waste electrical and electronic appliances [J]. International Journal of Environmental Research, 2013, 7(4): 903-908. [5] BEIGBEDER J, PERRIN D, MASCARO J F, et al. Study of the physico-chemical properties of recycled polymers from waste electrical and electronic equipment (WEEE) sorted by high resolution near infrared devices [J]. Resources Conservation and Recycling, 2013, 78: 105-114. [6]. [J]., 2010, 38(12): 69-73. [7],,,. [J]., 2010, 33(2): 101-105. [8] GARCIA M T, GRACIA I, DUQUE G, et al. Study of the solubility and stability of polystyrene wastes in a dissolution recycling process [J]. Waste Management, 2009, 29(1): 1814-1818. [9]. [M]. :, 2008. [10] NOGUCHI T, MIYASHITA M, INAGAKI Y, et al. A new recycling system for expanded polystyrene a natural solvent: Part 1. A new recying technique [J]. Packaging Technology and Science Package, 1998, 11: 19-27. [11]. [J]., 2001, 2: 24-25. [12],,,. [J]., 2010(5): 22-23. [13],. [J]., 2000, 33(5): 41-42. [14],. [J]., 1997, 28(1): 7-9. [15],. [J]., 2004(1): 5-7. [16],,,. [J]., 2004(2): 82-83. [17],. : PS [J]., 1995(3): 17-19. [18]. [J]., 2000(2): 22-23. [19]. [J]., 1999, 3: 46-48. [20],,. [J]., 2007, 23(2): 225-227. [21] SULKOWSLI W W, NOWAK K, SULKOWSKA A, et al. The conditions of cationic exchange with the use of recycling polystyrene derivative, the product of sulfonation by silica sulfuric acid [J]. Journal of Applied Polymer Science, 2013, 128(5): 2611-2617. [22],,. [J]., 2001, 20(1): 33-35. [23],,,. [J]., 2010, 12: 87-88. [24] SUN H, ZHANG Z, SONG L. Study on production of an auxiliary agent of coagulation using waste polystyrene foam and its application to remove phenol from coking plant effluent [J]. Environmental Progress & Sustainable Energy, 2010, 29(4): 494-498. [25],,. [J]., 2003, 3: 53-56. [26]. PS [J]., 1998, 6(10): 3-4. [27]. [J].
120 2014 31, 2000, 8: 21-22. [28]. [J]., 1999(1): 10. [29],,,. (EPS) [J]., 2006, 27(5): 101-104. [30]. PS [J]., 2002, 5(2): 166-170. [31] WANG R, MEYER C. Performance of cement mortar made with recycled high impact polystyrene [J]. Cement and Concrete Composites, 2012, 34(9): 975-981. [32],,. [J]., 2011, 25(6): 82-86. [33] STENVALL E, TOSTAR S, BOLDIAR A, et al.the influence of extrusion conditions on mechanical and thermal properties of virgin and recycled PP, HIPS, ABS and their ternary blends [J]. International Polymer Processing, 2013, 28(5): 541-549. [34] HUSSAIN Z, KHAN K M, PERVEEN S, et al. The conversion of waste polystyrene into useful hydrocarbons by microwave-metal interaction pyrolysis [J]. Fuel Processing Technology, 2012, 94(1): 145-150. [35] MO Y, ZHAO L, CHEN C L, et al. Comparative pyrolysis upcycling of polystyrene waste: thermodynamics, kinetics, and product evolution profile [J]. Journal of Thermal Analysis and Calorimetry, 2013, 111(1): 781-788. [36]. PS [J]., 2005, 31(131): 13-15. [37]. Eu-MCM [J]., 2005, 25(5): 71-74. [38] JIN S, CUI K, GUAN H, et al. Preparation of mesoporous MCM-41 from natural sepiolite and its catalytic activity of cracking waste polystyrene plastics [J]. Applied Clay Science, 2012, 56: 1-6. Research on Techniques of Waste Polystyrene Plastics Recycling and Reusing DENG Liang, XU Hai-ping, XIE Hua-qing, LI Zhi-jie (School of Urban Development & Environmental Engineering, Shanghai Second Polytechnic University, Shanghai 201209, P. R. China) Abstract: The recycling and reusing techniques of waste polystyrene plastic, including the polystyrene foamed plastics, were introduced in this paper. It included the current situation of making coating, adhesive, chemistry products, building materials and pyrolytic technique, and mainly discussed the key techniques of melt extrusion and making wood-like plastics. Especially, the performance of different techniques of recycling and reusing process were also analyzed and compared. And the future development direction of waste polystyrene plastics recycling had been looked to. Keywords: polystyrene; foamed plastics; recycling; reusing