矿用反应型无卤有机注浆加固材料阻燃性能研究

TD752.2; 针对普通聚氨酯注浆加固材料(PU)卤素含量高,造成煤化工企业催化剂中毒失活的问题,合成了一种反应型无卤有机注浆加固材料(PU-NH);借助极限氧指数(LOI),探究PU-NH的阻燃性能;通过热重差示扫描量热分析(TG-DSC)和锥形量热分析,探究PU-NH的热稳定性和燃烧性能.结果表明:PU-NH为难燃材料,与PU相比,PU-NH表现出更优异的热稳定性能,且PU-NH烟释放量降低了39.3％,一氧化碳释放量降低了50.75％.材料燃烧后炭渣的扫描电子显微镜(SEM)和X射线光电子能谱(XPS)的表征结果表明:PU-NH燃烧后炭渣呈"蜂窝状"结构,燃烧时表面...

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Published in矿业安全与环保 Vol. 50; no. 2; pp. 40 - 45
Main Authors 陈星明, 周亭, 周家家, 马琳, 刘青, 许向彬
Format Journal Article
LanguageChinese
Published 中国平煤神马集团十一矿,河南 平顶山 467000%中煤科工集团重庆研究院有限公司,重庆 400037 01.04.2023
Subjects
无卤
热稳定性
聚氨酯
注浆加固材料
阻燃性能
Online AccessGet full text
ISSN1008-4495
DOI10.19835/j.issn.1008-4495.2023.02.007

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Abstract TD752.2; 针对普通聚氨酯注浆加固材料(PU)卤素含量高,造成煤化工企业催化剂中毒失活的问题,合成了一种反应型无卤有机注浆加固材料(PU-NH);借助极限氧指数(LOI),探究PU-NH的阻燃性能;通过热重差示扫描量热分析(TG-DSC)和锥形量热分析,探究PU-NH的热稳定性和燃烧性能.结果表明:PU-NH为难燃材料,与PU相比,PU-NH表现出更优异的热稳定性能,且PU-NH烟释放量降低了39.3％,一氧化碳释放量降低了50.75％.材料燃烧后炭渣的扫描电子显微镜(SEM)和X射线光电子能谱(XPS)的表征结果表明:PU-NH燃烧后炭渣呈"蜂窝状"结构,燃烧时表面形成一层蓬松而致密的炭层,可有效隔绝氧气,并降低热传导速率,这是材料表现出良好阻燃性能的根本原因;同时,PU-NH炭渣中碳元素高,也有利于炭层的形成,提高了耐氧化能力.煤矿井下注浆试验结果表明,PU-NH的性能高于煤矿加固煤岩体用高分子材料的行业标准,加固后可有效提高煤岩体承载能力,保障工作人员生命安全.
AbstractList TD752.2; 针对普通聚氨酯注浆加固材料(PU)卤素含量高,造成煤化工企业催化剂中毒失活的问题,合成了一种反应型无卤有机注浆加固材料(PU-NH);借助极限氧指数(LOI),探究PU-NH的阻燃性能;通过热重差示扫描量热分析(TG-DSC)和锥形量热分析,探究PU-NH的热稳定性和燃烧性能.结果表明:PU-NH为难燃材料,与PU相比,PU-NH表现出更优异的热稳定性能,且PU-NH烟释放量降低了39.3％,一氧化碳释放量降低了50.75％.材料燃烧后炭渣的扫描电子显微镜(SEM)和X射线光电子能谱(XPS)的表征结果表明:PU-NH燃烧后炭渣呈"蜂窝状"结构,燃烧时表面形成一层蓬松而致密的炭层,可有效隔绝氧气,并降低热传导速率,这是材料表现出良好阻燃性能的根本原因;同时,PU-NH炭渣中碳元素高,也有利于炭层的形成,提高了耐氧化能力.煤矿井下注浆试验结果表明,PU-NH的性能高于煤矿加固煤岩体用高分子材料的行业标准,加固后可有效提高煤岩体承载能力,保障工作人员生命安全.
Author 周家家
刘青
马琳
许向彬
陈星明
周亭
AuthorAffiliation 中国平煤神马集团十一矿,河南 平顶山 467000%中煤科工集团重庆研究院有限公司,重庆 400037
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Author_FL ZHOU Jiajia
XU Xiangbin
CHEN Xingming
ZHOU Ting
LIU Qing
MA Lin
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Keywords 无卤
热稳定性
聚氨酯
注浆加固材料
阻燃性能
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Publisher 中国平煤神马集团十一矿,河南 平顶山 467000%中煤科工集团重庆研究院有限公司,重庆 400037
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Snippet TD752.2; 针对普通聚氨酯注浆加固材料(PU)卤素含量高,造成煤化工企业催化剂中毒失活的问题,合成了一种反应型无卤有机注浆加固材料(PU-NH);借助极限氧指数(LOI),探究PU-NH...
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Title 矿用反应型无卤有机注浆加固材料阻燃性能研究
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