光稳定剂和抗氧剂对聚乙烯老化性能的影响

311620098武汉理工大学学报JOURNALOFWUHANUNIVERSITYOFTECHNOLOGYVol.31No.16Aug.2009DOI:10.3963/j.issn.1671-4431.2009.16.003陶园园,王曦林,余剑英(,430070):研究了不同光稳定剂体系以及抗氧剂和光稳定剂复配对高密度聚乙烯老化性能的影响结果表明:紫外吸收剂单独使用时,UV326比UV531效果好;紫外吸收剂和受阻胺770复配时,770和UV326复配效果更好抗氧剂和光稳定剂复配使用后,聚乙烯的抗老化性能明显提高,尤其是抗氧剂1010和抗氧剂168共同使用时效果更为理想研究还表明,与光稳定剂复配使用时,抗氧剂1010和抗氧剂168的较适宜用量分别为0.1份和0.15份:聚乙烯;紫外吸收剂;受阻胺光稳定剂;抗氧剂;紫外光氧老化:O631.3:A:1671-4431(2009)16-0008-04EffectsofLightStabilizersandAntioxidantsonthePhotooxidativeAgingofHigh-densityPolyethyleneTAOYuan-yuan,WANGXi-lin,YUJian-ying(SchoolofMaterialsScience&Engineering,WuhanUniversityofTechnology,Wuhan430070,China)Abstract:Effectsofdifferentlightstabilizerandthecombinationofantioxidantsandlightstabilizerstogetheronthepho-tooxidativeagingresistanceofhigh-densitypolyethylene(HDPE)areinvestigated.TheresultsshowthattheimprovementofUV326onphotooxidativeagingresistanceofHDPEissuperiortothatofUV531,andthecombinationofultravioletabsorbers(UV326)andhinderedaminelightstabilizer(HALS-770)canbetterimprovethephotooxidativeagingresistanceofHDPE.Inthepresenceoflightstabilizer,thephotooxidativeagingresistanceofHDPEhasbeenimprovedevidentlywiththeadditionofantioxidant,especiallyforcompounduseofantioxidant1010andantioxidant168,andthegoodphotooxidativeagingresistanceofHDPEoccurswhentheamountofantioxidant1010and168is0.1phrand0.15phr,respectively.Keywords:polyethylene;ultravioletabsorbent;hinderedaminelightstabilizer;antioxidants;photooxidativeaging:2009-03-10.:(NJ-2007-22).:(1984-),,.E-mail:[e-mail],,,,,[1,2],,,[3-5],,,,[6],,4,,22[7],UV531GW540770,,770,,,,,[8],,,,[7]UV531UV3262770,,,11.1(HDPE):LA-50D012(5000S),;PE:;:;1010168UV531UV326770:1.2100HDPE0.5PE1(1)3),50e0.5h,0.08)0.12,0.11UV531/UV326/770/A0---A10.1--A2-0.1-A30.1-0.1A4-0.10.12UV326/770/1010/168/B10.10.1--B20.10.10.1-B30.10.10.10.151.3QUV,100h300h500h700h1000h,,10min8h(50e),4h(45e)340nm,1.19W/m21.43UV326/770/1010/168/C10.10.10.050.15C20.10.10.10.15C30.10.10.150.15C40.10.10.10.05C50.10.10.10.1:GB1040)92,50mm@10mm@4mm,ANS,20mm/min,,3,22.11293116,,:102009856C1C2C3(168),1010,10100.1,1010;1010,1010,,56C2C4C5(1010),168,,10100.11680.15,3a.,UV326UV531,770,770UV326b.,1010168,c.,10100.11680.15,[1].[M].:,1983.[2]GijsmanP,MeijersG,VitarelliG.ComparisonoftheUV-degradationChemistryofPolypropylene,Polyethylene,Polyamide6andPolybutyleneTerephthalate[J].PolymerDegradationStability,1999,65:433-441.[3],.[M].:,2002.[4]CarrascoF,PagesP,PascualS,etal.ArtifcialAgingofHigh-densityPolyethylenebyUltravioletIrradiation[J].EuropeanPolymerJournal,2001,37:1457-1464.[5]TidjaniA,WatanabeY.ComparisonofPolyethyleneHydroperoxideDecompositionunderNaturalandAcceleratedConditions[J].PolymerDegradationStability,1995,49:299-304.[6],.[J].,2001,83(2):63-64.[7].[J].,2000,5(12):34-37.[8]WypychG.[M].,.:,2004.56:!56113116,,: