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过程工程学报 ›› 2017, Vol. 17 ›› Issue (2): 345-350.DOI: 10.12034/j.issn.1009-606X.216275CSTR: 32067.14.jproeng.216275

• 过程与工艺 • 上一篇    下一篇

改性高岭土对不饱和聚酯树脂的阻燃抑烟性能

高 明1*， 陈 顺2， 孙英娟1, 程根银3   

  1. 1. 华北科技学院环境工程学院，北京 101601；
    2. 华北科技学院安全工程学院，北京101601；
    3. 华北科技学院协同中心，北京101601
  • 收稿日期:2016-08-12 修回日期:2016-09-18 出版日期:2017-04-20 发布日期:2017-04-19
  • 通讯作者: 高明 gaoming@ncist.edu.cn

Flame Retardancy and Smoke Suppression of Modified Kaolin to Unsaturated Polyester Resin

GAO Ming1*,  CHEN Shun2,  SUN Ying-juan1, CHENG Gen-yin3   

  1. 1. Department of Environmental Engineering, North China Institute of Science & Technology, Beijing 101601, China;
    2. Schoolof Safety Engineering, North China University of Science & Technology, Beijing 101601, China;
    3. Corrdination Centre, North China University of Science & Technology, Beijing 101601, China
  • Received:2016-08-12 Revised:2016-09-18 Online:2017-04-20 Published:2017-04-19
  • Contact: GAO Ming gaoming@ncist.edu.cn

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摘要： 以煤矸石高效利用为目的，采用响应曲面实验设计优化煤矸石铝铁分离液制备氧化铁红颜料工艺，研究了Na2CO3浓度、反应温度和Fe(II)浓度等因素对氧化铁红颜料纯度的影响；在单因素实验基础上，对实验设计进行优化，分析了产物的物相结构和微观形貌. 结果表明，在Na2CO3浓度107 g/L、反应温度43℃及Fe(II)浓度0.26 mol/L的条件下，所得氧化铁红产品纯度可达96.09%，纯度及其它指标均满足GB/T1863-2008中A级氧化铁红要求. 铁红中间产物为针状a-FeOOH和g-FeOOH，煅烧后针状消失，得到结晶较好的a-Fe2O3.

关键词: 煤矸石, 氧化铁红, 响应曲面设计

Abstract:  

 Dimethyl sulfoxide, urea, potassium acetate and amino silane were used to modify kaolinite, respectively, which was applied to impart the flame retardancy of unsaturated polyester resin (UPR). Cone calorimeter was used to study their flame retardancy and smoke suppression, SEM and TG were used to study the micro morphology of the char and flame retardant mechanism. The results showed that the flame retardant properties of UPR were improved by the modified kaolin, inside the urea modified kaolin showds the best flame retardant, smoke suppression and thermal stability, which peak of heat release rate, total smoke product, CO yield and CO2 yield reduced by 14.9%, 59.1%, 30.8% and 29.6% compared with pure UPR, respectively, followed by amino silane modified kaolin, and poor for dimethyl sulfoxide modified kaolin and potassium acetate modified kaolin.

Key words: coal gangue, iron oxide red, response surface methodology

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