The advancement of bis(2-hydroxyethyl)terephthalate recovered from post-consumer poly(ethylene terephthalate) bottles compared to commercial polyol for preparation of high performance polyurethane

被引:14
作者
Chi Thi Pham [1 ]
Binh Tan Nguyen [1 ]
Minh Tuyet Nguyen [1 ]
Thu Hien Nguyen [1 ]
Cuong Ngoc Hoang [2 ]
Nguyen Ngan Nguyen [3 ]
Pyoung-Chan Lee [4 ]
Kim, Jinhwan [5 ]
DongQuy Hoang [1 ,5 ]
机构
[1] Vietnam Natl Univ, Univ Sci, Fac Mat Sci & Technol, Dept Polymer & Composite Mat, Ho Chi Minh City 700000, Vietnam
[2] Vietnam Natl Univ, Univ Sci, Fac Chem, Dept Polymer Chem, Ho Chi Minh City 700000, Vietnam
[3] Pohang Univ Sci & Technol, Dept Chem Engn, Pohang 37673, South Korea
[4] Korea Automot Technol Inst, Lightweight Mat R&D Ctr, Cheonan 31214, Chungnam, South Korea
[5] Sungkyunkwan Univ, Dept Polymer Sci & Engn, Suwon 16419, Gyeonggi, South Korea
关键词
Thermal stability; Post-Consumer PET; BHET; Sorption isotherm; PUf flame retardancy; Industrial system; UNSATURATED POLYESTER RESIN; PET WASTE; RECYCLED PET; FLAME; PRODUCTS; DEGRADATION; FOAMS; GLYCOLYSIS; TRIHYDRATE; GRAPHITE;
D O I
10.1016/j.jiec.2020.09.024
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The behavior of rPUf (polyurethane foam derived from bis(2-hydroxyethyl) terephthalate (BHET) recovered from post-consumer poly(ethylene terephthalate)-PET bottles) and cPUf (polyurethane foam based on a commercial polyol) were evaluated by comprehensive characterizations, and their thermal stabilities, flammabilities, and physical properties were compared. Without using a flame retardant, rPUf passed the UL-94HB standard, whereas cPUf burned rapidly to the holding clamp. Various formulations of rPUf and cPUf with established eco-friendly fire retardants (FRs), including triphenyl phosphate, aluminum diethylphosphinate, and aluminum trihydroxide, exhibited notably higher fire resistance. The differences between the experimental and calculated densities showed the effectiveness of the foaming process. A larger difference indicated that the FR improved the foaming process more. The BHET structure contains an aromatic moiety that strongly enhanced the compressive strength and protected the rPUf/FRs from biodegradation, as evidenced by sorption isotherm experiments. For that reason, the rPUf/FRs could be used as building materials, especially under high humidity conditions. These are the advantages of BHET over the commercial polyol for PUf preparation. Chemical recycle of post-consumer PET bottles to produce high performance PUf could be applied on an industrial scale and then it creates the sustainable recycling industry. (C) 2020 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
引用
收藏
页码:196 / 209
页数:14
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