Synthesis and properties of the waterborne polyurethane modified with the hydroxyl-terminated polybutadiene，ICAFPM 2011先进纤维与聚合物材料国际学术会议（2011.8.15~17，上海）-中国聚合物网,论文下载

Synthesis and properties of the waterborne polyurethane modified with the hydroxyl-terminated polybutadiene

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waterborne polyurethane hydroxyl-terminated polybutadiene coating resistance for
water and solvent

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1782K

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分子表征

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ICAFPM 2011先进纤维与聚合物材料国际学术会议（2011.8.15~17，上海）

简介：

Theresistanceofnormalwaterbornepolyurethanecoatingsforwaterandsolventwouldbelowerthanthesolvent-basedpolyurethane.Inordertoimprovetheresistanceforwaterandsolvent,itwasinvestigatedthatawaterbornepolyurethane(WPU)weremodifiedbyhydroxyl-terminatedpolybutadiene(HTPB),andtheinfluenceofcontentofHTPBand-COOH(COOHwt%=1.5%,HTPBwt%≤35%)onWPUstabilityanddiameterwerestudied.Itwasmoresteadythatthecontentofcarboxylgroupsis1.5wt%orhigherthan1.5wt%andthecontentofHTPBislowerthan35wt%.ThewaterbornepolyurethanestructurewouldbestudiedbyATR,IRandTEM,andtheimprovementmechanismofitsresistanceforwaterandsolventanditsmechanicalpropertieswasdiscussedinthispaper.ItwerefoundthatcarboxylateandcarbamatesegmentsasthestronghydrophilicsegmentinthefilmsofWPUareexcludedfromthesurfacethefilmsofWPU,andthehydrophobicsurfacepropertiesofthefilmsofWPUwereimproved,andsomemechanicalpropertieswerepreservedorimprovedtosomeextent.

作者：

CHEN Jianbing, GUO Qiang, ZHANG Sigang, ZHAO Zhengping

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2011-09-22 14:11:19

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