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阻燃剂对软质聚氨酯海绵塑料热解的影响研究

阻燃剂对软质聚氨酯海绵塑料热解的影响研究

发布日期:2020-01-03 作者: 点击:


成都聚氨酯海绵由于含可燃的碳氢链段、密度小、比面积大,未经阻燃处理的聚氨酯海绵是可燃物,遇火燃烧并且分解,产生大量的有毒烟雾,给人员疏散和灭火带来很大的困难。特别是聚氨酯软泡(FPUF)开孔率较高,可燃成分多,燃烧时由于较高的空气流通性而源源不断地供给氧气,易燃而不易自熄,极易造成群死群伤的重大火灾事故,例如2000年12月河南洛阳东都商厦特大火灾,由于员工进行违规电焊操作时电焊火花溅到库存海绵床垫、沙发等可燃物上,未能及时控制而蔓延到四楼娱乐城,造成309人中毒窒息死亡。而目前随着经济的不断发展,聚氨酯海绵的使用量大大增加,对聚氨酯软泡的阻燃要求也越来越迫切。阻燃处理后聚氨酯海绵塑料的分解行有何变化,分解机理有什么变化,目前未见系统的研究报道。本文利用热分析技术,对多种阻燃剂对聚氨酯海绵热分解的影响进行了研究。

2.1SHIYANYAOPIN:JULINSUANAN,LINSUANERQINGJIA,LVHUAAN,ERQINGERAN,LINSUANERQINGAN,SANJUQINGAN,PENGSHA,PENGSUANAN,LIUPIANLINSUANNA(JUNWEIHUAXUECHUN)。 2.2YIQI:TGA/SDTA851eXINGREFENXIYI,RUISHIMEITELEGONGSICHAN。

球探足球比分2.3SHIYANFANGFA: JIANGJUANZHIRUANPAOCAICHENGZHANGKUANGAOJUNWEI50mmDEXINGZHUANG,AN40%DEBILIJIANGZURANJIFENBIERONGJIEZAIZHENGLIUSHUIZHONG,JIANGJUANZHIRUANPAOFANGRUSHANGSHURONGYEZHONG,JIYAJINPAOYUE10min,JIDIAODUOYUDERONGYE,FANGRUHONGXIANGZHONGZAI100℃DEQINGKUANGXIAJINXINGHONGGAN。JIANGJUANZHIRUANPAOKONGBAIYANGPINJIANCHENGSUIMO,YONGDIANZITIANPINGCHENGQUDAYUE5mgFANGRUBIAOZHUNGANGUOZHONG,DIAOJIEREFENXIYIQISHIWENDUCONG50℃SHANGSHENGDAO700℃,SHENGWENSULVWEI10℃/min,ZAIDANQI(30ml/min)QIFENXIAJINXINGSHIYANFENXI。

高密度海绵

球探足球比分2.4SHUJUCHULI 3JIEGUOYUFENXI JUANZHIRUANPAOZAI235.37℃XIAJIUYIJINGKAISHIFENJIE,QIFENJIEGUOCHENGDAZHIKEYIFENWEI230℃~350℃,350℃~410℃LIANGGESHIZHONGBIANHUAFASHENGDEZHONGYAOWENDUFANWEI,ZAIFENJIECHUQI(230~350℃)XIA,FENJIESULVJIAOMAN,CIJIEDUANSHIZHONGYUE25%。ZAICIGUOCHENGZHONGZHUYAOSHIYOUYIQINGSUANZHI、DUOYUANCHUN、ANHEERYANGHUATANDENGQITIFANGCHU,YIQINGSUANZHIYIHUANGSEDEYANHUIFACHULAI,ZAOCHENGZHILIANGDESUNSHI。

DANGWENDUSHANGSHENGDAO350℃YIHOU,FENJIESULVJIAKUAI,SHIZHONGYEZENGDA,ZAI350℃~410℃ZHEIYIJIEDUANSHIZHONGDAYUEWEI60%。CIJIEDUANZHUYAOSHIYICANZHAXINGSHICUNLIUXIALAIDEDUOYUANCHUNKAISHIFENJIEFANGCHUYIXI、YIWAN、JIAQUAN、BINGXI、HUANYANGYIWAN、BINGTONG、YIBINGCHUNDENGZAOCHENGDEZHILIANGSUNSHI。WENDUZAI500℃YISHANGZHILIANGJIBENSHANGWUBIANHUA,RANHOUJUANZHICANZHAZHONGLIANGYUEWEI15%。WOMENCONGDTGTUSHANGKEYEKANCHUJUANZHIRUANPAO,YOULIANGGEJIAODADEJIANZHONGFENG,SHUOMINGFENJIESHIZHONGZHUYAOFASHENGZAIZHEILIANGGEJIEDUAN,BINGZAI384℃ZUOYOUCHUXIANGENGDAFENJIESULV。

TIANJIALELIUPIANLINSUANNADEJUANZHIRUANPAOZAI219.53℃KAISHIFENJIE,CONGDTGQUXIANSHANGKANCHUQISHIZHONGGUOCHENGJIAOWEIFUZA,DAZHIKEYIFENWEISANGESHIZHONGJIEDUAN:219℃~230℃,230℃~350℃,350℃~400℃。DIYIJIEDUANDESHIZHONGDAYUEWEI3%,CIJIEDUANWENDUJIAODI,SHIZHONGJIAOXIAO,DUIHAIMIANDEFENJIEYINGXIANGJIAOXIAO;DIERJIEDUANDESHIZHONGDAYUEWEI16%,DISANJIEDUANDESHIZHONGDAYUEWEI13%,HUOHUANENGWEI147.17kJ/mol。TIANJIALELINSUANERQINGJIAYIHOU,YUKONGBAIYANGPINXIANGBIFENJIEWENDUTIQIAN,FENJIEGUOCHENGJIAOWEIFUZA,KEFENWEISANGESHIZHONGJIEDUAN,219℃~230℃,CIJIEDUANSHIZHONGJIAOSHAODAYUEWEI5%,DUIHAIMIANDEFENJIEDEYINGXIANGJIAOXIAO;230℃~300℃,DIERJIEDUANDESHIZHONGDAYUEWEI20%;300℃~400℃,DISANJIEDUANDESHIZHONGDAYUEWEI25%,

HUOHUANENGWEI121.75kJ/mol。TIANJIALEHANLINZURANJIYIHOUSHIJUANZHIRUANPAOQISHIFENJIEWENDUTIQIAN,HUOHUANENGBIANXIAO,GENGDAFENJIESULVJIANXIAO,ZHEIZHUYAOSHIYINWEIZURANJISHIRUANPAODADAOFENJIEWENDUQIANXIANFENJIESHENGCHENGLINDEHANYANGSUAN,CONGERCUIHUAJUANZHIRUANPAOZHONGDEQIANGJITUOSHUICHENGTAN,JIANGDICAILIAODEZHILIANGSUNSHISULVHEKERANWUDESHENGCHENGLIANG,ERLINZEDABUFENCANLIUZAITANCENGZHONG,ZHEIYEYANZHENGLERANSHAODESHENGYULIANGYOUJIAODADEJIEGUOHANSANJUQINGANZURANJISHIJUANZHIHAIMIANDEQISHIFENJIEWENDUWEI247℃,FENJIEGUOCHENGDAZHIKEFENWEILIANGGEJIEDUAN,DIYIJIEDUANZAI247℃~350℃,CIJIEDUANSHIZHONGWEI60%,ZHEISHIYINWEISANJUQINGANZHEIZHONGWUZHIZAI330℃~350℃SHISHENGHUA,CONGDTGQUXIANSHANGKEYIKANCHUZAI330℃SHICHUXIANGENGDAFENJIESULV。

DIERJIEDUANZAI350℃~400℃DESHIZHONGWEI30%,HUOHUANENGWEI307.72kJ/mol。TONGGUOBIJIAO,TIANJIASANJUQINGANYIHOU,QIFENJIEWENDUTUICHIDAYUE10℃,HUOHUANENGZENGDA,SHUOMINGTIANJIASANJUQINGANZHEIZHONGZURANJITIGAOLEJUANZHIHAIMIANDEREWENDINGXING,ZAIHUOZAICHUQIBURONGYIFASHENGFENJIE。QICHUXIANGENGDAFENJIESULVDEWENDUTIQIAN,GENGDAFENJIESULVYEZENGDA,SHUOMINGSANJUQINGANZAIDANDUZURANSHI,QIZURANZUOYONGSHIXIAOBIJIAOZAO,DESHENGYULVYEJIAOSHAO。ERQINGERANZURANJISHIJUANZHIZURANTIXIDEFENJIEGUOCHENGBIANWEISANGEJIEDUAN。DIYIJIEDUAN234℃~270℃,SHIZHONGWEI5%,DIERJIEDUAN270℃~400℃,SHIZHONGWEI35%,DISANJIEDUANDEFENJIE400℃~700℃,CONGQUXIANDEQUSHIKAN,FENJIEZAI700℃YIHOUHAIKEYIJINXING,DAO700℃SHIZHONGDAYUEWEI15%。


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关键词:聚氨酯海绵,海绵生产厂家,高密度海绵

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