一步法制备高硬度聚氨酯弹性体

**471001D706kJ/m210minD70NCONCOD70NCO10%NCO1minTDI3.5min11.1-1Mn=1500-2Mn=1800PTMEG-1Mn=1000PTMEG-2Mn=2000ACTHQEE14-BD1.2190～110℃2A100℃2～3h60℃3BA60℃460℃AB3min100～110℃20h7d1.3GB1043-93GB528-92D04POLYURETHANEINDUSTRY20011612001.Vol.16No.1*22.11123242.21.1011/%/minDPTMEG-114-BD64170-114-BD62171-1CT511262-1HQEE512561BDD70HQEECTCT2.3CT22/%D1#PTMEG-256.9622#-258.0663#-151.062-22#PTMEG-21#2#3#3#-12.4-1CT33/%/minD51146254.6127057.1107258.2974D7020min1～2hD70～76/MPa39141/%197/kJm-26～1531D706kJ/m22CT31G...1992.162..1984.1972000-10-252001-02-08ThePreparationofHighHardnessPolyurethaneElastomerTianYuZhangJieWeiYongjiNationalReactionInjectionMoldingEngineeringResearchCenterLuoyang471001AbstractBychoosingofoligomerpolyolsandchain-extenderspolyurethaneelastomerwithhardnesshigherthanShoreD70andgapimpactstrengthhigherthan6kJ/m2wassynthesizedbyone-stepmethod.Thegeltimeofthisreactionsystemismorethan10minutes.Theelastomercanbemanufacturedbothbymechanicalprocessandmanualcast.Keywordspolyurethaneelastomerhighhardnessimpactresistance1968~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~TDI1.652.7475%15%31.7%46%1.615%40%1.572.810.4%TX-1300tTX-124--5-MOCATX-1MOCA60℃8min110℃2～3minMOCA0.2MPa250kg/m36MPa2416