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材料导报  2021, Vol. 35 Issue (z2): 525-528    
  高分子与聚合物基复合材料 |
聚碳硅烷协效氢氧化镁阻燃聚乙烯复合材料的残炭结构演变
侯鹏程1, 王永亮1, 韩志东1,2, 王春锋1
1 哈尔滨理工大学材料科学与工程学院,哈尔滨 150040
2 哈尔滨理工大学电介质工程国家重点实验室培育基地,哈尔滨 150080
Structure Evolution of Residual Char of Polycarbosilane/Magnesium Hydroxide Flame Retardant Polyethylene Composites
HOU Pengcheng1, WANG Yongliang1, HAN Zhidong1,2, WANG Chunfeng1
1 School of Materials Science and Engineering, Harbin University of Science and Technology, Harbin 150040, China
2 Key Laboratory of Engineering Dielectrics and Its Application of Ministry of Education, Harbin University of Science and Technology, Harbin 150080, China
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摘要 以氢氧化镁等为代表的无卤阻燃聚烯烃材料由于具有无毒、环保等特点,在阻燃领域中一直占有重要地位。鉴于其阻燃机理决定的低阻燃效率需要高添加量的特点及分解后自身残留固相产物较多,相应的阻燃复合材料燃烧后能够产生较多的残炭,为陶瓷化提供了物质基础,但以氢氧化镁为主的陶瓷化阻燃聚烯烃材料研究较少。陶瓷化前驱体材料——聚碳硅烷具有较高的陶瓷化产率,常用于制备具有复杂结构的陶瓷构件,但其用于聚烯烃阻燃的报道较少。本工作将聚碳硅烷与氢氧化镁复合制备了阻燃聚乙烯复合材料,研究了聚碳硅烷对复合材料凝聚相炭层结构的影响。结果表明,聚碳硅烷能够有效地将氧化镁颗粒粘结在一起形成具有特殊结构的陶瓷化炭层。
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侯鹏程
王永亮
韩志东
王春锋
关键词:  聚碳硅烷  氢氧化镁  聚乙烯  陶瓷化  阻燃    
Abstract: Halogen-free flame retardant polyolefin materials represented by magnesium hydroxide flame retardant have been playing an important role in the flame retardant field because of their non-toxic and eco-friendly characteristics. In view of its high addition result from its low flame retardant efficiency determined by the flame retardant mechanism and the large number of solid phase products left after decomposition, more resi-dual char of its composites will be left after combustion, which provides material basis for the ceramization. However, the ceramifiable flame retardant polyolefin materials based on magnesium hydroxide have been less studied. Polymer ceramic precursor materials—polycarbosilane, has high ceramic yield, which is often used to produce ceramic components with complex structures, but its application in flame retardant of polyolefin is rarely reported. In this paper, flame-retardant polyethylene (PE) composites were prepared with polycarbosilane and magnesium hydroxide, the effect of polycarbosilane on the structure of condensed char layer of the composites was studied. The results show that polycarbosilane can effectively bond magnesium oxide particles together and produce a ceramic carbon layer with special structure.
Key words:  polycarbosilane    magnesium hydroxide    polyethylene    ceramization    flame
                    发布日期:  2021-12-09
ZTFLH:  TQ132  
基金资助: 国家自然科学基金(51602084);黑龙江省自然科学基金(YQ2019E030);黑龙江省普通高校基本科研业务费专项资金(LGYC2018JC032)
通讯作者:  chunfeng.wang@hrbust.edu.cn   
作者简介:  侯鹏程,于2019年9月至今,作为一名研究生在哈尔滨理工大学学习,主要从事阻燃材料的研究。
王春锋,讲师,硕士研究生导师,在哈尔滨理工大学工作,主要从事陶瓷化无卤阻燃聚烯烃材料的研究。
引用本文:    
侯鹏程, 王永亮, 韩志东, 王春锋. 聚碳硅烷协效氢氧化镁阻燃聚乙烯复合材料的残炭结构演变[J]. 材料导报, 2021, 35(z2): 525-528.
HOU Pengcheng, WANG Yongliang, HAN Zhidong, WANG Chunfeng. Structure Evolution of Residual Char of Polycarbosilane/Magnesium Hydroxide Flame Retardant Polyethylene Composites. Materials Reports, 2021, 35(z2): 525-528.
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http://www.mater-rep.com/CN/  或          http://www.mater-rep.com/CN/Y2021/V35/Iz2/525
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