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时间:2020-03-26
《母料配方对PE-HDE-TMB共混物结晶行为的影响.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、66第40卷,第5期工程塑料应用VoI.40.No52012年5月ENGINEERINGPLASTICSAPPLICATIONMay2012doi:10.3969/j.issn.1001-3539.2012.05.016母料配方对PE.HD/E.TMB共混物结晶行为的影响樊卫华,郭凯,刘玉坤,白娟,陈金周。王经武(1.郑州大学护理学院,郑州450052;2.郑州大学材料科学与工程学院,郑州450052)摘要:用增韧母料(E.TMB)分别与高密度聚乙烯(PE.HD)2200J(HE1)、5000S(HE2)热机械共混制得HE1/E
2、·TMB和HE2/E—TMB共混物,研究了E.TMB中弹性体配比(M/N)、基体树脂和弹性体配比(H/E)对共混物结晶行为的影响,并将其和简单共混对照样对比。结果表明,与纯PE.HD和简单共混物对照样相比,HE1/E.TMB和HE2/E。TMB的结晶起始温度升高,且随M/N比值的减小而增大,随H/E比值的减小而减小;HE1/E.TMB的结晶焓减小而成核速率和结晶速度增大,HE2/E.TMB的结晶焓增大而成核速率和结晶速度减小,HE2/E.TMB的成核速率随M/N比值的减小而减小。关键词:高密度聚乙烯;增韧母料;结晶行为中图分类号
3、:TQ325.1,TQ325.2文献标识码:A文章编号:1001.3539(2012)05.0066.05EffectoftheMasterBatchFormulaontheCrystallineBehaviorOfPE.HD/E.TMBBlendsFanWeihua,GuoKai,LiuYuku,BaiJuan,ChenJinzhou,WlangJingwu(1.TheNurseingColegeofZhengzhouUniversity,Zhengzhou450052,China:2.CollegeofMaterialSci
4、enceandEngineering,ZhengzhouUniversity,Zhengzhou450052,China)Abstract:HE1/E—TMBandHE2/E—TMBblendswerepreparedbythethermalmechanicalblendingoftougheningmasterbatch(E—TMB)with2200JPE.HD(HE1)and5000SPE—HD(HE2),andtheeffectsofelastomerratio(M/N)andtheratioofmatrixresinto
5、elastomer(H/E)inE~TMBonthecrystallinebehaviorofPE—HD/E—TMBwereinvestigated.andwhichwerecontrasttoPE.HD/elastomerblends.TheresultsshowedtbatthejnitialcrystallizationtemperatureofHE1/E.TMBandHE2/E—TMBblendswasallhigherthanthatofthepurePE.HDandPE.HD/elastomer.andgradual
6、lyincreasedwiththeratioofMtoNdecreasinganddecreasedwiththeratioofHtoEdecreasing.TheenthalpychangeofcrystallizationofHE1/E—TMBwassmallerthanthatofHE1andHE1/E—TMB.ThenuclearationrateandthecrystallizationrateofHE1/E—TMB(M/N)blendswasal1higherthanthatofthepureHE1andHE1/e
7、lastomer(M/N).TheenthalpychangeofcrystallizationofHE2/E—TMBwashigherthanthatofthepureHE2andHE2/elastomer,buttheirnuclearationrateandcrystallizationratewascontrary.ThenuclearationrateofHE2/E.TMBgraduallydecreasedwiththeratioofMtoNdecreasing.Keywards:highdensitypolyeth
8、ylene;tougheningmasterbatch;crystallinebehavior将高密度聚乙烯(PE.HD)增韧改性为工程塑塑料料使用是高分子材料研究的一个重要课题。传统的笔者研究了E.TMB中乙丙弹性体(M)与丁苯研究方法大体分为弹性体增韧和刚性
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