Effects of ZnAl layered double hydroxide and benzimidazole derivative on the dechlorination of poly(vinyl chloride)

被引：7
作者：
Jin, Dandan [1 ]
Khanal, Santosh [1 ]
Xu, Shiai [1 ,2 ]
机构：
[1] East China Univ Sci & Technol, Sch Mat Sci & Engn, Shanghai 200237, Peoples R China
[2] Qinghai Univ, Sch Chem Engn, Xining 810016, Peoples R China
来源：
APPLIED CLAY SCIENCE | 2021年 / 208卷
基金：
中国国家自然科学基金;
关键词：
Poly(vinyl chloride); Layered double hydroxide; Benzimidazole; Thermal degradation; ACID; NANOCOMPOSITES; STABILIZER; DEGRADATION; FACILE; WASTES; LDH; PVC; MG;
D O I：
10.1016/j.clay.2021.106114
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Layered double hydroxides (LDHs) that are generally used as thermal stabilizers of poly(vinyl chloride) (PVC) can also have catalytic effects on the dechlorination of PVC. In this study, benzimidazole derivative (OBPB) modified ZnAl-LDH (OBPB@ZLDH) was synthesized and incorporated into PVC, and the effects of OBPB@ZLDH and the physical blend of OBPB and ZLDH (OBPB/ZLDH) on the dechlorination of PVC were investigated by Congo red test and discoloration test. The results indicated that OBPB/ZLDH could improve the thermal stability of PVC. The composition and chemical structure of PVC composites after discoloration test were studied by energy dispersive X-ray spectroscopy and attenuated total internal reflectance-infrared spectroscopy. The results revealed that the products derived from the reaction between HCl released in the thermal degradation of PVC and OBPB/ZLDH could accelerate the dechlorination and oxidization of PVC at low temperature. Therefore, it has potential applications in the dechlorination of PVC to prepare hydrochars for use as alternative fuels at low temperature.
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页数：10
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共 35 条
[1]   Preparation of dipentaerythritol-combined layered double hydroxide particle and its thermostabilizing effect for polyvinyl chloride [J].
Aisawa, Sumio ;
Nakada, Chie ;
Hirahara, Hidetoshi ;
Takahashi, Noriyuki ;
Narita, Eiichi .
APPLIED CLAY SCIENCE, 2019, 180
[2]   Optical, thermal and electrical properties of polybenzimidazoles derived from substituted benzimidazoles [J].
Anand, Siddeswaran ;
Muthusamy, Athianna .
JOURNAL OF MOLECULAR STRUCTURE, 2017, 1148 :254-265
[3]   Catalytic Dechlorination and Charring Reaction of Polyvinyl Chloride by CuAl Layered Double Hydroxide [J].
Chen, Yang ;
Zhang, Shuhua ;
Han, Xiuxiu ;
Zhang, Xu ;
Yi, Mengting ;
Yang, Siyuan ;
Yu, Dayang ;
Liu, Weijun .
ENERGY & FUELS, 2018, 32 (02) :2407-2413
[4]   Calcium Iron Layered Double Hydroxide/Poly(vinyl chloride) Nanocomposites: Synthesis, Characterization and Cd2+ Removal Behavior [J].
Dinari, Mohammad ;
Roghani, Negar .
JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS, 2020, 30 (03) :808-819
[5]   Facile synthesis of ZnAl-EDTA layered double hydroxide/poly(vinyl alcohol) nanocomposites as an efficient adsorbent of Cd(II) ions from the aqueous solution [J].
Dinari, Mohammad ;
Haghighi, Atefeh ;
Asadi, Parvin .
APPLIED CLAY SCIENCE, 2019, 170 :21-28
[6]   The study of ZnAl and ZnFe layered double hydroxide on the catalytic dechlorination and fire safety of polyvinyl chloride [J].
Gao, Zehua ;
Lu, Lihong ;
Shi, Congling ;
Qian, Xiaodong ;
Wang, Xuebao ;
Zhang, Guoyun ;
Zhou, Mingtao ;
Pan, Yuhao .
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, 2020, 140 (01) :115-123
[7]   Reversible discoloration effects in the photoaging of poly(vinyl chloride) [J].
Gardette, JL ;
Lemaire, J .
JOURNAL OF VINYL & ADDITIVE TECHNOLOGY, 1997, 3 (02) :107-111
[8]   A Quantitative Spectroscopic Study of the Bleaching Phenomena in Plasticized Formulations Containing PVC Exposed to Outdoor Conditions [J].
Gonzalez-Falcon, Elizabeth ;
Arellano, Martin ;
Judith Sanchez-Pena, M. ;
Javier Gonzalez-Ortiz, L. .
POLYMERS, 2019, 11 (09)
[9]   Preparation of a Novel Heat Stabilizer for Poly(vinyl chloride)-Zn, Mg, Al-Layered Double Hydroxide [J].
Gu, Zheng ;
Liu, Weisheng ;
Dou, Wei ;
Tang, Fei .
POLYMER COMPOSITES, 2010, 31 (05) :928-932
[10]   Lithium Aluminium Layered Double Hydroxides: Synthesis and Application in Poly (Vinyl Chloride) [J].
Gupta, Savita ;
Agarwal, D. D. ;
Banerjee, Susanta .
INTERNATIONAL JOURNAL OF POLYMERIC MATERIALS, 2012, 61 (13) :985-998
1234