毕业论文高分子材料与工程毕业论文专业：高分子材料与工程题目：全水发泡在阻燃聚氨酯硬泡中的应用研究摘要采用多元醇、异氰酸酯、催化剂、发泡剂和阻燃剂等为原料制备了全水发泡阻燃聚氨酯硬质泡沫（PURF），讨论了聚醚多元醇种类、催化剂、发泡剂、异氰酸酯指数以及阻燃剂对聚氨酯硬质泡沫性能的影响。结果表明，聚酯多元醇能够改善泡孔结构，但降低压缩强度和尺寸稳定性；不同催化剂复配，可以控制发泡工艺;水发泡剂与泡沫的密度、泡孔结构、力学性能有关；异氰酸酯指数在1.1～1.2时，泡沫的压缩强度、尺寸稳定性等较好;三(2-氯异丙基)磷酸酯(TCPP)可赋予聚氨酯硬质泡沫一定的阻燃性，但对泡体结构、压缩强度和尺寸稳定性有影响。关键词：聚氨酯硬质泡沫，全水发泡，阻燃性能ABSTRACTThewater-blownrigidpolyurethaneflame-retardantfoam(PURF)waspreparedbypolyol,isocyanate,catalyst,blowingagentsandflameretardantsasrawmaterials,inthispape.Thetypesofpolyrtherpolyols,catalysts,blowingagents,isocyanateindexandfireretardantonthePURFperformancewereinvestgated.Theresultsshowthatthepolyesterpolyolcanimprovethecellstructure,butreducethecompressionstrengthanddimensionalstability;differentcatalystcompound,cancontrolthefoamingprocess;waterfoamingagentandfoamdensity,cellstructure,themechanicalproperties;isocyanateindexof1.1to1.2,thefoamcompressionstrength,gooddimensionalstability,etc.;Tris-(2-chloroisopropyl)phosphatephosphate(TCPP)flameretardantmaybegiventoPURFcertain,butonthebubblestructure,compressivestrengthdimensionalstability,andimpact.Keywords：RigidPolyurethaneFoam,Water-blown,Flameretardant目录TOC\o"1-3"\h\z\uHYPERLINK\l"_Toc262726034"摘要PAGEREF_Toc262726034\hIHYPERLINK\l"_Toc262726035"ABSTRACTPAGEREF_Toc262726035\hIIHYPERLINK\l"_Toc262726036"第一章前言PAGEREF_Toc262726036\h1HYPERLINK\l"_Toc262726037"1.1聚氨酯概况PAGEREF_Toc262726037\h1HYPERLINK\l"_Toc262726038"1.1.1聚氨酯简介及其应用PAGEREF_Toc262726038\h1HYPERLINK\l"_Toc262726039"1.2聚氨酯的发展现状及趋势PAGEREF_Toc262726039\h2HYPERLINK\l"_Toc262726040"1.3硬质聚氨酯泡沫塑料PAGEREF_Toc262726040\h3HYPERLINK\l"_Toc262726041"1.3.1硬质聚氨酯泡沫塑料的性能特点PAGEREF_Toc262726041\h3HYPERLINK\l"_Toc262726042"1.3.2聚氨酯泡沫塑料的制备PAGEREF_Toc262726042\h3HYPERLINK\l"_Toc262726043"1.3.3聚氨酯硬泡的应用PAGEREF_Toc262726043\h4HYPERLINK\l"_Toc262726044"1.4硬泡全水发泡技术PAGEREF_Toc262726044\h4HYPERLINK\l"_Toc262