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1、SBS增韧酚醛树脂-杨永强沈阳理工大学学士学位论文摘要酚醛树脂具有优异的机械性、耐热性、耐寒性、尺寸稳定性、电绝缘性、成型加工性、阻燃性及烟雾性,而且这些性能又取得很好的平衡,且价格便宜，但是,它的其中一个缺点是韧性差。本研究采用SBS做为改性单体，利用物理共混的方法，使产物结构中弹性结构单元与酚醛树脂相结合，提高树脂韧性。实验结果表明，5g20%SBS(YH-801)的增韧剂增韧酚醛树脂增韧效果最好，增韧后树脂粘度为17.2866，树脂抗弯曲强度64.22Pa，树脂冲击强度5.8KJ/m，发泡所的泡沫表面密实光滑、韧性较好。关键词：酚
2、醛树脂；改性弹性体；SBS。I沈阳理工大学学士学位论文ABSCRACTThephenolicresinhasexcellentmechanicalproperties,heatresistance,coldresistance,dimensionalstability,electricalinsulation,molding,flameretardantandsmokeresistanceperformanceandgoodbalance,andthepriceischeap,However,onedrawbackisthatthepo
3、ortoughness.SBSasamodifiedmonomer,theuseofphysicalblendingmethod,sothattheflexiblestructuralunitinthestructureoftheproductwithphenolicresintoincreaseresintoughness.Theexperimentalresultsshowthatthebesttougheningeffectof5g20%oftheSBS(YH-801)flexibilizertoughenedphenolicre
4、sin,tougheningtheresinviscosity17.2866resinflexuralstrength64.22Pa,,resinimpactstrength5.8KJ/mfoambythefoamdensesmoothsurface,goodtoughness.Keywords:phenolicresin;modifiedelastomer;theSBS.II沈阳理工大学学士学位论文目录摘要.................................................................
5、..........................................................................IABSCRACT...................................................................................................................................II1.1酚醛树脂改性的发展...........................................
6、......................................................11.1.1酚醛树脂工业的发展史..................................................................................11.1.2酚醛树脂改性国外发展现状..........................................................................31.1.3我国酚醛树脂改性的发展现状........
7、..............................................................41.1.4酚醛树脂的最新发展及展望..........................................................................51.2酚醛树脂增韧改性途径.............................................................................................51.2.1酚醛树脂
8、的外增韧...........................................................................................51.2.2酚醛
