本文主要研究内容
作者詹帅(2019)在《聚氨酯/可膨胀石墨—氢氧化铝阻燃材料的制备与性能研究》一文中研究指出:聚氨酯泡沫塑料因为其良好的保温隔热性能、优良的力学性能、优良的耐久性以及尺寸稳定性,在各个领域被广泛应用。但是作为聚合物的聚氨酯泡沫塑料具有易燃性,在燃烧过程中还会产生腐蚀性有毒气体。随着科学技术的发展和人们环保意识的崛起,社会对绿色环保的新型保温材料具有迫切需求。为了提高聚氨酯泡沫塑料的阻燃性,通常选择以添加阻燃剂的方式增强其阻燃性能,但是含卤阻燃剂在燃耗过程中会释放大量有毒气体。为了满足社会的需求,需要制备出新型绿色环保的阻燃剂。本文首先通过水热法制备可膨胀石墨/氢氧化铝的复合阻燃剂,然后将不同水热条件制备的可膨胀石墨/氢氧化铝复合阻燃剂分别加入聚氨酯原料中制备出阻燃聚氨酯样品。研究了温度、pH值、反应物比例等水热反应条件对产物微观结构、形貌及性能的影响规律,阐明了水热法制备可膨胀石墨/氢氧化铝复合阻燃剂的反应机理。通过对复合阻燃剂进行结构分析和微观形貌分析,对阻燃聚氨酯的阻燃性能、力学性能和微观形貌的分析,可以得到如下结论:水热温度的升高对氢氧化铝相的影响很明显;pH值的改变对氢氧化铝相的影响不明显;复合阻燃剂不会参加聚氨酯泡沫塑料的发泡反应但是会降低聚氨酯泡沫塑料的闭孔率,进而使聚氨酯泡沫的力学性能变差;复合阻燃剂的阻燃性能优良,添加量为20g时,聚氨酯的极限氧指数达到28.5,自熄级别。本文还研究了添加不同质量的复合阻燃剂对聚氨酯泡沫塑料性能的影响,并分析了其阻燃机理。通过对加入不同量复合阻燃剂的聚氨酯样品进行微观形貌与性能分析得到如下结论:聚氨酯泡沫的阻燃性能和热稳定性会随着复合阻燃剂添加量的增加而增加;聚氨酯泡沫塑料的闭孔率会随着复合阻燃剂的增加而逐渐降低,从而使聚氨酯泡沫塑料的压缩性能降低,表观密度升高。本文最后通过添加增塑剂DOA(己二酸二辛脂)来改善阻燃聚氨酯的力学性能,探索了不同添加量的增塑剂DOA对阻燃聚氨酯性能和结构的影响,得到以下结论:DOA能显著增加阻燃聚氨酯的压缩强度,对阻燃聚氨酯的阻燃性能、表观密度、保温性能没有影响。
Abstract
ju an zhi pao mo su liao yin wei ji liang hao de bao wen ge re xing neng 、you liang de li xue xing neng 、you liang de nai jiu xing yi ji che cun wen ding xing ,zai ge ge ling yu bei an fan ying yong 。dan shi zuo wei ju ge wu de ju an zhi pao mo su liao ju you yi ran xing ,zai ran shao guo cheng zhong hai hui chan sheng fu shi xing you du qi ti 。sui zhao ke xue ji shu de fa zhan he ren men huan bao yi shi de jue qi ,she hui dui lu se huan bao de xin xing bao wen cai liao ju you pai qie xu qiu 。wei le di gao ju an zhi pao mo su liao de zu ran xing ,tong chang shua ze yi tian jia zu ran ji de fang shi zeng jiang ji zu ran xing neng ,dan shi han lu zu ran ji zai ran hao guo cheng zhong hui shi fang da liang you du qi ti 。wei le man zu she hui de xu qiu ,xu yao zhi bei chu xin xing lu se huan bao de zu ran ji 。ben wen shou xian tong guo shui re fa zhi bei ke peng zhang dan mo /qing yang hua lv de fu ge zu ran ji ,ran hou jiang bu tong shui re tiao jian zhi bei de ke peng zhang dan mo /qing yang hua lv fu ge zu ran ji fen bie jia ru ju an zhi yuan liao zhong zhi bei chu zu ran ju an zhi yang pin 。yan jiu le wen du 、pHzhi 、fan ying wu bi li deng shui re fan ying tiao jian dui chan wu wei guan jie gou 、xing mao ji xing neng de ying xiang gui lv ,chan ming le shui re fa zhi bei ke peng zhang dan mo /qing yang hua lv fu ge zu ran ji de fan ying ji li 。tong guo dui fu ge zu ran ji jin hang jie gou fen xi he wei guan xing mao fen xi ,dui zu ran ju an zhi de zu ran xing neng 、li xue xing neng he wei guan xing mao de fen xi ,ke yi de dao ru xia jie lun :shui re wen du de sheng gao dui qing yang hua lv xiang de ying xiang hen ming xian ;pHzhi de gai bian dui qing yang hua lv xiang de ying xiang bu ming xian ;fu ge zu ran ji bu hui can jia ju an zhi pao mo su liao de fa pao fan ying dan shi hui jiang di ju an zhi pao mo su liao de bi kong lv ,jin er shi ju an zhi pao mo de li xue xing neng bian cha ;fu ge zu ran ji de zu ran xing neng you liang ,tian jia liang wei 20gshi ,ju an zhi de ji xian yang zhi shu da dao 28.5,zi xi ji bie 。ben wen hai yan jiu le tian jia bu tong zhi liang de fu ge zu ran ji dui ju an zhi pao mo su liao xing neng de ying xiang ,bing fen xi le ji zu ran ji li 。tong guo dui jia ru bu tong liang fu ge zu ran ji de ju an zhi yang pin jin hang wei guan xing mao yu xing neng fen xi de dao ru xia jie lun :ju an zhi pao mo de zu ran xing neng he re wen ding xing hui sui zhao fu ge zu ran ji tian jia liang de zeng jia er zeng jia ;ju an zhi pao mo su liao de bi kong lv hui sui zhao fu ge zu ran ji de zeng jia er zhu jian jiang di ,cong er shi ju an zhi pao mo su liao de ya su xing neng jiang di ,biao guan mi du sheng gao 。ben wen zui hou tong guo tian jia zeng su ji DOA(ji er suan er xin zhi )lai gai shan zu ran ju an zhi de li xue xing neng ,tan suo le bu tong tian jia liang de zeng su ji DOAdui zu ran ju an zhi xing neng he jie gou de ying xiang ,de dao yi xia jie lun :DOAneng xian zhe zeng jia zu ran ju an zhi de ya su jiang du ,dui zu ran ju an zhi de zu ran xing neng 、biao guan mi du 、bao wen xing neng mei you ying xiang 。
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论文作者分别是来自哈尔滨工程大学的詹帅,发表于刊物哈尔滨工程大学2019-07-01论文,是一篇关于阻燃聚氨酯论文,可膨胀石墨论文,氢氧化铝复合阻燃剂论文,水热法论文,阻燃性能论文,增塑剂论文,哈尔滨工程大学2019-07-01论文的文章。本文可供学术参考使用,各位学者可以免费参考阅读下载,文章观点不代表本站观点,资料来自哈尔滨工程大学2019-07-01论文网站,若本站收录的文献无意侵犯了您的著作版权,请联系我们删除。
标签:阻燃聚氨酯论文; 可膨胀石墨论文; 氢氧化铝复合阻燃剂论文; 水热法论文; 阻燃性能论文; 增塑剂论文; 哈尔滨工程大学2019-07-01论文;