Depolymerization of Waste Polybutylene Terephthalate in Hot Compressed Water in a Fused Silica Capillary Reactor and an Autoclave Reactor: Monomer Phase Behavior, Stability, and Mechanism

doi:10.1002/pen.24450

CORC > 深海科学与工程研究所 > 中国科学院深海科学与工程研究所 > 深海科学研究部 > 深海极端环境模拟研究实验室

	Depolymerization of Waste Polybutylene Terephthalate in Hot Compressed Water in a Fused Silica Capillary Reactor and an Autoclave Reactor: Monomer Phase Behavior, Stability, and Mechanism
	Pan, Zhiyan 1; Hu, Zhichao 1; Bei, Ke 1; Wang, Junliang 1; Liu, Yingping 1; Ma, Yanpei 1; Shen, Yuan 1; Chou, I-Ming2
刊名	POLYMER ENGINEERING AND SCIENCE
	2017-05-01
卷号	57 期号:5 页码:544-549
DOI	10.1002/pen.24450
文献子类	Article
英文摘要	Depolymerization is a potentially viable means of recycling waste polymers, converting them back into monomers or other useful compounds. Terephthalic acid (TPA) and 1,4-butanediol (1,4-BD) are the depolymerization monomer products of polybutylene terephthalate. Their yields from depolymerization in hot compressed water (HCW) were previously found to be lower than reported theoretical values. Thus, the phase behavior, stability, and mechanism of monomers in HCW were investigated in a fused silica capillary reactor (FSCR) and a stainless steel autoclave reactor. Phase change observations showed that TPA was completely dissolved in water at 300 degrees C, was relatively stable at 320 to 350 degrees C, and that its recovery significantly decreased at temperatures above 350 degrees C. The decomposition of TPA increased with increasing heating time. However, the recovery of 1,4-BD decreased rapidly with increasing temperature or heating time. A mechanism for the stability of TPA and 1,4-BD is proposed based on their depolymerization products. The products were quantified by Fourier transform-infrared spectroscopy, high-performance liquid chromatography, and gas chromatography coupled with mass spectrometry. The wall effect of the stainless steel autoclave promoted the decomposition of TPA and 1,4-BD in HCW. (C) 2016 Society of Plastics Engineers
WOS关键词	SUPERCRITICAL WATER ; SUBCRITICAL WATER ; HIGH-TEMPERATURE ; BIOMASS ; POLYCARBONATE ; CHLOROBENZENE ; DEGRADATION ; HYDROLYSIS
语种	英语
WOS记录号	WOS:000403319300007
内容类型	期刊论文
源URL	[http://ir.idsse.ac.cn/handle/183446/3790]
专题	深海科学研究部_深海极端环境模拟研究实验室
作者单位	1.Zhejiang Univ Technol, Dept Environm Engn, Hangzhou 310032, Zhejiang, Peoples R China 2.Chinese Acad Sci, Inst Deep Sea Sci & Engn, Lab Expt Study Deep Sea Extreme Condit, Sanya 572000, Hainan, Peoples R China
推荐引用方式 GB/T 7714	Pan, Zhiyan,Hu, Zhichao,Bei, Ke,et al. Depolymerization of Waste Polybutylene Terephthalate in Hot Compressed Water in a Fused Silica Capillary Reactor and an Autoclave Reactor: Monomer Phase Behavior, Stability, and Mechanism[J]. POLYMER ENGINEERING AND SCIENCE,2017,57(5):544-549.
APA	Pan, Zhiyan.,Hu, Zhichao.,Bei, Ke.,Wang, Junliang.,Liu, Yingping.,...&Chou, I-Ming.(2017).Depolymerization of Waste Polybutylene Terephthalate in Hot Compressed Water in a Fused Silica Capillary Reactor and an Autoclave Reactor: Monomer Phase Behavior, Stability, and Mechanism.POLYMER ENGINEERING AND SCIENCE,57(5),544-549.
MLA	Pan, Zhiyan,et al."Depolymerization of Waste Polybutylene Terephthalate in Hot Compressed Water in a Fused Silica Capillary Reactor and an Autoclave Reactor: Monomer Phase Behavior, Stability, and Mechanism".POLYMER ENGINEERING AND SCIENCE 57.5(2017):544-549.