以植物秸秆为基的聚氨酯泡沫塑料的-研究

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1、西南科技大学硕士研究生学位论文第1I页AbstractConvertingplantstrawwasteintorawchemicalmaterialsinsteadofpetrochemicalproducts，whichnotonlyreducethedependenceandconsumptiononthefossilresources，butalsoexploitanewdevelopmentfieldforourcountry’Sagriculture，anditcanreduceenvironmentalproblems

2、whichcausedbyburning．Thisstudyconvertingricestrawbyusingmixedreagentsofphenolandglycerin，makinguseoftheliquefactionproductallinsteadofpetrochemicalrawmaterialsandfiUthedifferentproportionofricestrawpowderintogoodperformancerigidpolyurethanefoam(RPUF)．(1)Thepaperhassyst

3、emresearchstudyonricestrawliquefaction．Itinvestigatestheeffectsofdifferentliquefactionprocessandprocessfactorsontheresuits．andobtainsthebestliquefactionprocessbyorthogonaltest．ResearchshoWSthat：thebestliquefactionprocessofmicrowaveliquefactionisthat：catalystis5％，thequa

4、lityratioofphenolandglycerinis4：1，microwavepoweris500w,thecondensingtemperatureis1504C，liquefactiontimeis22．5min，andtheresiduerateis2．17％；Thebestliquefactionprocessofoilbathisthat：catalystis3％．thequalityratioofphenolandglycerinis4：1，theliquefactiontemperatureis1806C．1i

5、quefactiontimeis120min，andthentheresiduerateminimumis2．30％．Hydroxvvalueofmicrowaveliquefactionproductislowerthanoilbathliquidproduct，acidvaluehavethecontraryresult；GPCresultsshowthatthemolecularWeightanddispersioncoefficientarelessthanoilbathliquefactionwhichcausedbVth

6、epenetrationradiationeffectsofmicrowaveliquefied；ThericestrawliquefiedproductsandliquefactionresiduesarecharacterizedbyFT-IR，XRD，SEM，andtheresultsshowedthatcellulose，hemicellulosesareeasiertoliquefactionandligninhascontraryresult，liquefactionresiduesaremainlyligninandi

7、tsderivatives，andmicrowaveliquefactionismorelikelytomakericestrawcomponentdegradation．(2)ThestudymakinguseofricestrawliquefiedproductinsteadofallpetrochemicalrawmaterialsintoRPUF，Itinvestigatestheeffectsofdifferentmassratiooffoamingagentdosage，uniformbubbleagent，cataly

8、stcontentanddensityonthepropertiesofRPUF．Itanalyzesthechemicalstructure，mechanicalproperties，themalstabilityofRPUFand