酚醛-聚氨酯硬質組合泡沫的制備及其阻燃性研究.pdf

1、南京理工大學碩士學位論文酚醛聚氨酯硬質組合泡沫的制備及其阻燃性研究姓名：袁海順申請學位級別：碩士專業(yè)：化學工程指導教師：李斌棟；張超林20101120Abstract工程碩士學位論文AbstractRigidpolyurethane(PU)foamshavegoodtoughnessandheatinsulatingproperties，howeverthepoorflameretardantpropertieslimittheirap

2、plicationinthefieldofbuildingthermalinsulationPhenolicaldehydefoamshavebetterflameretardantproperties，butthebrittlenessandprocessabilityaleworseWegotcompositefoamsfrompolyurethaneandphenolicaldehydefoamthroughcopolymeriz

3、ationreactiontheresultsshowedthatthecompositefoamshavebetterflameretardantpropertyheatinsulatingpropertyandbetterprocessabilityInthispaperthesynthesisprocessesofthecompositefoamswereintroducedWesynthetizedthephenolicresi

4、npolyols，phenolicresinpolyetherpolyols，themodifiedphenolicresinpolyolsandthemodifiedphenolicresinpolyetherpolyolsThesynthesiscraftindetailandtheindextestandcharacterizationofthesynthetizedpolylolwerealsodiscussedBythecom

5、binationsofappropriateformulas，wesynthetizedthephenolicaldehydepolyurethanecompositerigidfoamswithexcellentflameretardantpropertyThentheflameretardantproperties，thebubblesurfacemorphologyandthecellularstructureofthecompo

6、siterigidfoamswerecharacterizedInthispaper，oxygenindexandsmokedensitywereusedasthemostimportantteststandardsoftheflameretardantpropertyWefoundthattheoxygenindexofthecompositefoamcanreachabove36％，andthesmokedensitywasredu

7、cedtolessthan15％TheresultsconformtothenationalstandardA2inbuildingmaterials，andthemarketprospectofthecompositefoamisbroadByanalysisofscanningelectronicmicroscope(SEM)，weconcludedthattheburningsurfaceofthedenselayerofthec