有机硅憎水改性珍珠岩复合保温材料的制备及性能研究
|
摘要
利用有机硅憎水剂对珍珠岩进行憎水改性处理,并将改性后的珍珠岩分别与聚乙烯醇(PVA)、脲醛树脂(UF)以及三聚氰胺脲醛树脂(MUF)进行填充复配制得三种复合材料,采用标准试验方法测定了三种憎水改性复合材料的密度、燃烧性能、烟密度、氧指数、导热系数等相关特性参数,考察了不同配比下的材料的导热性能和燃烧性能。结果表明,改性处理后珍珠岩复合材料的阻燃性能均有效增强,且表现出一定的协同效应。采用PVA的复合材料密度最低,为185.8kg/m~3;导热系数最低,为0.046w/m·k;烟密度仅10%;受热分解慢。而采用UF和MUF时其复合材料均表现出良好的阻燃特性,MUF复合材料氧指数达到了52.5%。
Firstly, the hydrophobic medication of perlite was carried out by organosilicon hydrophobic agent.Secondly, three composites were prepared by filling the composition of the hydrophobically modified pearlite withpolyvinyl alcohol(PVA), urea-formaldehyde resin(UF), and melamine urea formaldehyde resin(MUF)respectively. Thirdly, properties of the three hydrophobically modified composites materials, including density,combustion performance, smoke density, oxygen index, and thermal conductivity, were determined by standard testmethods, and the thermal conductivity and combustion properties of materials with different ratios were alsoinvestigated. The results indicated that the flame retardancy of a the modified pearlite composite materials wasimproved, showing some synergistic effect. The composite material with PVA is lowest density and thermalconductivity, being 185.8kg/m~3 and 0.046w/m·k respectively, with a smoke density of only 10% and a slowheating decomposition. While composite materials with UF and MUF showed good flame retardancy, with the latterclaiming an oxygen index of 52.5%.
Firstly, the hydrophobic medication of perlite was carried out by organosilicon hydrophobic agent.Secondly, three composites were prepared by filling the composition of the hydrophobically modified pearlite withpolyvinyl alcohol(PVA), urea-formaldehyde resin(UF), and melamine urea formaldehyde resin(MUF)respectively. Thirdly, properties of the three hydrophobically modified composites materials, including density,combustion performance, smoke density, oxygen index, and thermal conductivity, were determined by standard testmethods, and the thermal conductivity and combustion properties of materials with different ratios were alsoinvestigated. The results indicated that the flame retardancy of a the modified pearlite composite materials wasimproved, showing some synergistic effect. The composite material with PVA is lowest density and thermalconductivity, being 185.8kg/m~3 and 0.046w/m·k respectively, with a smoke density of only 10% and a slowheating decomposition. While composite materials with UF and MUF showed good flame retardancy, with the latterclaiming an oxygen index of 52.5%.
引文
[1]欧志华,刘锡军,王彦.建筑外墙外保温系统的火灾特征及防火措施[J].建筑科学,2010,26(11):21-28.
[2]殷杰,郑向敏,焦念涛.我国旅游景区火灾事故的关联影响因素研究——基于最优尺度分析[J].防灾科技学院学报,2017,19(1):71-78.
[3]姜连瑞,朱亚婵,郭龙飞,等.高层建筑外保温材料燃烧特性及火灾扑救研究[J].工业安全与环保,2014,(1):31-34.
[4]孙健,丁璐.浅谈我国外墙体有机保温材料的火灾危险性以及安全对策[J].安防科技,2010,8(3):42-44.
[5]Ai M X,Cao L Q,Guo X Y.Research on FlameRetarded of Polyurethane Rigid Foam/ExpandedPerlite Thermal Insulation Composites[J].AdvancedMaterials Research,2012,427:133-138.
[6]Dr.Mohammad.Performance characteristics andpractical applications of common building thermalinsulation materials[J].Building and Environment2005:353-366.
[7]周广德.球形闭孔珍珠岩的应用研究[J].中国建材科技,2007,16(3):24-26.
[8]刘鹏,余晟,陈世富.球形闭孔膨胀珍珠岩在GRC板中的应用[J].信阳师范学院学报自然科学版,2002,15(3):340-341.
[9]杨守生.消防工程专业实验[M].河北:中国人民武装警察部队学院,2003.
[10]黄振利.墙体保温技术探索[M].北京:中国建筑工业出版社,2009.
[11]杜建科.材料燃烧性能与实验方法[M].中国建材工业出版社,2013.
[12]赵成刚.建筑材料及制品燃烧性能分级评价[M].北京:中国标准出版社,2007.
[13]朱春玲.建筑防火材料手册[M].化学工业出版社,2009.
[14]刘晓燕,郑春媛,黄彩凤.多孔材料导热系数影响因素分析[J].低温建筑技术,2009,9(3):121-122.
[15]欧育湘.阻燃剂[M].北京:化学工业出版社,2006:388.
[2]殷杰,郑向敏,焦念涛.我国旅游景区火灾事故的关联影响因素研究——基于最优尺度分析[J].防灾科技学院学报,2017,19(1):71-78.
[3]姜连瑞,朱亚婵,郭龙飞,等.高层建筑外保温材料燃烧特性及火灾扑救研究[J].工业安全与环保,2014,(1):31-34.
[4]孙健,丁璐.浅谈我国外墙体有机保温材料的火灾危险性以及安全对策[J].安防科技,2010,8(3):42-44.
[5]Ai M X,Cao L Q,Guo X Y.Research on FlameRetarded of Polyurethane Rigid Foam/ExpandedPerlite Thermal Insulation Composites[J].AdvancedMaterials Research,2012,427:133-138.
[6]Dr.Mohammad.Performance characteristics andpractical applications of common building thermalinsulation materials[J].Building and Environment2005:353-366.
[7]周广德.球形闭孔珍珠岩的应用研究[J].中国建材科技,2007,16(3):24-26.
[8]刘鹏,余晟,陈世富.球形闭孔膨胀珍珠岩在GRC板中的应用[J].信阳师范学院学报自然科学版,2002,15(3):340-341.
[9]杨守生.消防工程专业实验[M].河北:中国人民武装警察部队学院,2003.
[10]黄振利.墙体保温技术探索[M].北京:中国建筑工业出版社,2009.
[11]杜建科.材料燃烧性能与实验方法[M].中国建材工业出版社,2013.
[12]赵成刚.建筑材料及制品燃烧性能分级评价[M].北京:中国标准出版社,2007.
[13]朱春玲.建筑防火材料手册[M].化学工业出版社,2009.
[14]刘晓燕,郑春媛,黄彩凤.多孔材料导热系数影响因素分析[J].低温建筑技术,2009,9(3):121-122.
[15]欧育湘.阻燃剂[M].北京:化学工业出版社,2006:388.