Kinetics of thermal decomposition of decabromodiphenyl ether and interaction with polystyrene in pyrolysis

GUAN Guoqiang; LIU Xu; CHEN Lieqiang; CAI Mingzhao

doi:10.3969/j.issn.0438-1157.2012.11.023

您当前的位置：

首页 >

文章列表页 >

Kinetics of thermal decomposition of decabromodiphenyl ether and interaction with polystyrene in pyrolysis

更新时间：2025-12-10

- Kinetics of thermal decomposition of decabromodiphenyl ether and interaction with polystyrene in pyrolysis
- CIESC Journal Issue 11, Pages: 3537-3545(2012)
- 作者机构：
  
  1. 过程节能与传热强化教育部重点实验室, 华南理工大学,广东,广州,510640
  2. 华南理工大学化学与化工学院,广东,广州,510640
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0438-1157.2012.11.023
  CLC： 705
- Online First：05 November 2012，
  
  Published：05 November 2012
- 稿件说明：
移动端阅览
GUAN Guoqiang, LIU Xu, CHEN Lieqiang, et al. Kinetics of thermal decomposition of decabromodiphenyl ether and interaction with polystyrene in pyrolysis[J]. CIESC Journal, 2012, (11): 3537-3545.
DOI：

GUAN Guoqiang, LIU Xu, CHEN Lieqiang, et al. Kinetics of thermal decomposition of decabromodiphenyl ether and interaction with polystyrene in pyrolysis[J]. CIESC Journal, 2012, (11): 3537-3545. DOI： 10.3969/j.issn.0438-1157.2012.11.023.

摘要

十溴二苯醚(decaBDE)是多种聚苯乙烯(PS)类塑料阻燃添加剂

其热解动力学对开发新型高效的电子塑料安全处置技术具有十分重要的意义

为此采用普适积分法成功关联了氮气中decaBDE的热解动力学参数。结果表明:固体decaBDE在306℃时熔融为液相并在400~450℃进一步汽化为气相

热重/红外(TG/IR)分析表明

其气相产物组成具有与decaBDE相同的红外特征;decaBDE热解过程可用三维扩散模型关联。进而通过对比分析decaBDE、PS和含decaBDE的阻燃PS样品的TG实验结果

发现阻燃塑料样品在热解时存在decaBDE与PS间的相互作用

表现为热解起始温度的降低和终止温度的升高。TG/IR分析表明:阻燃塑料样品的热解气相产物中不存在游离的HBr

decaBDE热解时产生的活性基团改变了PS的降解反应历程

使其气相产物具有与1

3-二苯基丁烷类似的红外特征。

Abstract

Decabromodiphenyl ether(decaBDE)is one of the most popular flame retardants used with polystyrene.The interest in the thermal decomposition of decaBDE has intensified due to its potential production of polybrominated dibenzo-p-dioxins(PBDD)or dibenzofurans(PBDF)in the thermal recycle of plastic waste.Kinetics of thermal decomposition of decaBDE was studied by non-isothermal thermogravimetric analysis(TGA).The three-dimensional diffusion model was found to be the best correlation of TGA data by the general integration method.The activity energy and logarithmic pre-exponential factor were found to be 122.7 kJ·mol-1 and 74.3 s-1 in TGA of decaBDE.In the process of thermal decomposition of decaBDE in the atmosphere of nitrogen

solid decaBDE melt at 306℃ and then vaporized in the temperature range of 400-450℃.When PS was blended with decaBDE

the decomposition temperature of the mixture was lower than that of virgin PS and a higher temperature was needed to complete pyrolysis.The infrared spectral characteristics of 1

3-diphenylbutane was detected in the pyrolysis vapor-phase products of the mixture

whereas styrene was usually found in the pyrolysis product of PS.It indicated that the active groups released from decaBDE changes the path of depolymerization in thermal decomposition of PS.

关键词

Keywords

references

Views

245

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Preparation of phenylboronic acid-based adsorption resin and its application in the separation of bio-based 1,3-propanediol

Heat release rate model of regular burning polystyrene sheet

Preparation of carbon nanotube catalyst on structure-modified cordierite monolith for polystyrene hydrogenation

Synthesis of syndiotactic-rich polystyrene with neodymium-based catalyst

Synthesis and characterization of block copolymer PS-b-PMMA with tetrafunctional initiator JWEB50

Related Author

XIU Zhilong

SUN Yaqin

XIAO Zhijun

HUANG Lusheng

LI Haihang

LIN Peng

DING Jie

CHEN Peiran

Related Institution

Key Laboratory of Intelligent Biomanufacturing, Ministry of Education, School of Bioengineering, Dalian University of Technology

College of Quality and Safety Engineering, China Jiliang University

Key Laboratory of Furniture Inspection Technology of Zhejiang Province

Quality Measurement and Monitoring Center of Yuhang District of Hangzhou City

Research Laboratory of Furniture and Hardware of Zhejiang Province

⁰