Effect of diaminotoluene on the decomposition of polyurethane foam waste in superheated water

被引:81
作者
Dai, ZY [1 ]
Hatano, B [1 ]
Kadokawa, J [1 ]
Tagaya, H [1 ]
机构
[1] Yamagata Univ, Fac Engn, Dept Chem & Chem Engn, Yamagata 9928510, Japan
关键词
D O I
10.1016/S0141-3910(02)00010-1
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Post-use polyurethane (PU) foam was degraded in superheated water at 423 to 623 K. The yield of diaminotoluene (TDA), one of the products, reached near 90%. The hydrolysis conditions (time and temperature) were important and the perfect liquid products could be obtained under the economic conditions at 523 K for 30 min. TDA was added to the reaction to investigate the effect on the decomposition of PU foam waste. However, in our conditions, basic additives only slightly improved the yield of TDA. (C) 2002 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:179 / 184
页数:6
相关论文
共 10 条
[1]   POLYURETHANE FOAM RECYCLING - SUPERHEATED STEAM HYDROLYSIS [J].
CAMPBELL, GA ;
MELUCH, WC .
ENVIRONMENTAL SCIENCE & TECHNOLOGY, 1976, 10 (02) :182-185
[2]   Hydrolysis and oxidation of an epoxy resin in sub- and supercritical water [J].
Fromonteil, C ;
Bardelle, P ;
Cansell, F .
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2000, 39 (04) :922-925
[3]   REACTION OF POLYURETHANE FOAM WITH DRY STEAM - KINETICS AND MECHANISM OF REACTIONS [J].
GERLOCK, JL ;
BRASLAW, J ;
MAHONEY, LR ;
FERRIS, FC .
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, 1980, 18 (02) :541-557
[4]   HYDROLYSIS OF POLYURETHANE FOAM WASTE [J].
MAHONEY, LR ;
WEINER, SA ;
FERRIS, FC .
ENVIRONMENTAL SCIENCE & TECHNOLOGY, 1974, 8 (02) :135-139
[5]   Dissolution and hydrolysis of cellulose in subcritical and supercritical water [J].
Sasaki, M ;
Fang, Z ;
Fukushima, Y ;
Adschiri, T ;
Arai, K .
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2000, 39 (08) :2883-2890
[6]   Decomposition of prepolymers and molding materials of phenol resin in subcritical and supercritical water under an Ar atmosphere [J].
Suzuki, Y ;
Tagaya, H ;
Asou, T ;
Kadokawa, J ;
Chiba, K .
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 1999, 38 (04) :1391-1395
[7]   Lipase-catalyzed hydrolytic degradation of polyurethane in organic solvent [J].
Takamoto, T ;
Shirasaka, H ;
Uyama, H ;
Kobayashi, S .
CHEMISTRY LETTERS, 2001, (06) :492-493
[8]   Hydrolysis of polyurethane resin using a twin screw reactive extruder for recycle [J].
Taniguchi, T ;
Sato, N ;
Matsushita, M ;
Takahashi, H ;
Suzuki, T ;
Hoshino, Y ;
Abe, N .
KOBUNSHI RONBUNSHU, 1999, 56 (11) :709-716
[9]   A novel approach to recycling of polyurethanes: chemical degradation of flexible polyurethane foams by triethyl phosphate [J].
Troev, K ;
Grancharov, G ;
Tsevi, R ;
Tsekova, A .
POLYMER, 2000, 41 (19) :7017-7022
[10]  
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