超分散剂的作用机理及应用效果

王正东　　胡黎明(,,200237),:1,[1]:,,;,,,,,1,:19950911;:19960918SYNTHESISTECHNOLOGYDEVELOPMENTOFPHENYLACETICACIDANDITSAPPLICATIONYanShuping(HebeiPetrochemicalIndustryResearchInstitute,Shijiazhuang)RenShaofeng(HebeiChemicalIndustrySchool,Shijiazhuang)AbstractSomesyntheticmethodsofphenylaceticacidanditsusesweresummarizedinthispaper.Thein-dustralizedmethodsofsodiumcyanide,phenylacetamide,carborylationarecompared.Itispointedoutthatcarbonylationprocessinthepresenceofcobaltcarbonylisthemostidealone.Itissuggestedthattheinstallationsusingcarbonylationprocesswillbebuiltwithhighspeedandtheoldprocessoforig-inalplantswerereplacedbycarbonylationmethod.Keywords:phenylaceticacid;benzylchloride;cobaltcarbonyl;carbonmonoxide;carbonylation199611SPECIALITYCHEMICALS6[2],,,;,18,,,,,1,,,,,,,,ABBAB,2,[3],,,,,;,,,,,,,22-NR2,-NR3+,-COOH,-COO-,-SO3H,-SO3-,-PO42--NCO,,[4],[5],,,,,,,,,ABBAB,,33601996,(),,,,,,,,,,,,44,[6],[7],3,,,,,,,,,,[8],,,;[9],,,,[1]4[10](1)(),,15%,20%(2),,,,,(3),,,,,,,,(20%30%),,,,,,10%,,,616.,,,,,,50%100%(4),,,,1,,.,1994,(4):32372,,.,1995,(1):29333SchofieldJD.JOCCA,1991,(6):2042104US36847715,.,1990,(4):496US40574367GB2108143A8T,RJ...:,1988.16389SatoT,JournalofCoatingTechnology,1993,(10):11312110CowleyACD,JOCCA,1987,(8):207213MECHANISMOFHYPERDISPERSANTSANDITSAPPLICATIONEFFECTWangZhengdongandHuLiming(InstituteofTechnicalChemicalPhysical,EastChinaUniversityofScienceandTechnology,Shanghai)AbstractHyperdispersantcontainstwopartsinitsmolecularstructure.Onepartisanchoringgroup,whichcanbetightlyadsorbedonthesurfaceofpigmentsthroughchemicalbond,hydrogenbondorwiththehelpofsurfacesynergist.Anotherpartissolvatablechain,whichstretchesinthemediumandformsanadsorptionlayerwithadequatethicknessonthepigmentsurface.Therepulsiveenergybetweentwolayerscanbecalculatedbythemodelofentropicorosmoticstabilizationtheory.Basedonthespecialfunctionmechanism,hyperdispersanthasalotofbenefitsduringitsapplication.Keywords:Hyperdispersant;achoringgroup;solvatablechain;effectivenessMasterBondUV10FL,,HulsAmericaInc.EP2325,,,(本刊摘)621996