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为了提高环氧树脂(EP)的综合性能,以含氨基官能团的笼型倍半硅氧烷(POSS)作为EP的改性剂,得到有机-无机POSS改性EP杂化树脂;然后以4,4′-二氨基二苯基砜(DDS)为固化剂对杂化树脂进行固化,得到有机-无机杂化材料。重点考察了POSS含量对杂化材料动态力学性能的影响。结果表明:不同杂化材料体系均呈单相结构,POSS在EP基体中分散较均匀,说明两者间相容性良好;随着POSS含量的不断增加,杂化材料体系的玻璃化转变温度(Tg)增大,与传统杂化材料不同的是损耗峰强度随POSS含量增加而降低,但损耗峰宽度几乎不变。
Abstract：In order to improve the combination property of epoxy resin(EP),an organic-inorganic POSS/EP hybrid resin was obtained with amino-functional groups POSS as modifier of EP.Then an organic-inorganic hybrid material was prepared with 4,4′-diamino diphenyl sulfone(DDS) as curing agent of hybrid resin.The influences of POSS contents on dynamic mechanical property of hybrid material were emphatically investigated.The results showed that the compatibility between POSS and EP was good because different hybrid material systems were all single-phase structure,and POSS was dispersed evenly in the EP matrix.The glass transition temperature(Tg) for the hybrid material system was increased,the loss peak intensity which differs with the traditional hybrid materials was decreased,but the loss peak width was almost constant with increasing POSS contents.
[1]Li H Y,Zhang Z S,Ma X F,et al.Synthesis and charac-terization of epoxy resin modified with nano-SiO2 andγ-glycidoxypropyltrimethoxy silane[J].Surface&CoatingsTechnology,2007,201(9-11):5 269-5 272.
[2]Ramos V D,Da Costa H M,Soares V L P,et al.Modifica-tion of epoxy resin:A comparison of different types ofelastomer[J].Polymer Testing,2005,24(3):387-394.
[3]Alessi S,Conduruta D,Pitarresi G,et al.Hydrothermalageing of radiation cured epoxy resin-polyether sulfoneblends as matrices for structural composites[J].PolymerDegradation and Stability,2010,95(4):677-683.
[4]Baller J,Becker N,Ziehmer M,et al.Interactions betweensilica nanoparticles and an epoxy resin before and duringnetwork formation[J].Polymer,2009,50(14):3 211-3 219.
[5]Chatterjee A,Islam M S.Fabrication and characterizationof TiO2-epoxy nanocomposite[J].Materials Science andEngineering(A),2008,487(1-2):574-585.
[6]Das G,Karak N.Thermostable and flame retardant Mesuaferrea L.seed oil based non-halogenated epoxy resin/claynanocomposites[J].Progress in Organic Coatings,2010,69(4):495-503.
[7]Nohales A,Solar L,Porcar I,et al.Morphology,flexural,and thermal properties of sepiolite modified epoxy resinswith different curing agents[J].European Polymer Journal,2006,42(11):3 093-3 101.
[8]Tan H L,Han J,Ma G P,et al.Preparation of highlyexfoliated epoxy-clay nanocomposites by sol-gel modifi-cation[J].Polymer Degradation and Stability,2008,93(2):369-375.
[9]Baney R H,Itoh M,Sakakibara A,et al.Silsesquioxanes[J].Chemical Reviews,1995,95(5):1 409-1 430.
[10]Fina A,Abbenhuis H C L,Tabuani D,et al.Metal func-tionalized POSS as fire retardants in polypropylene[J].Polymer Degradation and Stability,2006,91(10):2 275-2 281.
[11]Ni Y,Zheng S X,Nie K.Morphology and thermal propertiesof inorganic-organic hybrids involving epoxy resin andpolyhedral oligomeric silsesquioxanes[J].Polymer,2004,45(16):5 557-5 568.
[12]Weickmann H,Delto R,Thomann R,et al.PMMA nano-composites and gradient materials prepared by means ofpolysilsesquioxane(POSS)self-assembly[J].Journal ofMaterials Science,2007,42(1):87-92.
[13]Leu C M,Mahesh Reddy G,Wei K H,et al.Synthesis anddielectric properties of polyimide-chain-end tetheredpolyhedral oligomeric silsesquioxane nanocomposites[J].Chemistry of Materials,2003,15(11):2 261-2 265.
[14]Cheng Y Y,Kan J Y,Lin I S.Adhesion studies of low-ksilsesquioxane[J].Thin Solid Films,2004,462-463:297-301.
[15]Dodiuk H,Kenig S,Blinsky I,et al.Nanotailoring of epoxyadhesivesbypolyhedral-oligomeric-sil-sesquioxanes(POSS)[J].International Journal of Adhesion&Adhesives,2005,25(3):211-218.
[16]Zhang Z P,Liang G Z,Lu T L.Synthesis and characterizationof cage octa(aminopropylsilsesquioxane)[J].Journal ofApplied Polymer Science,2007,103(4):2 608-2 614.
[17]Lu T L,Liang G Z,Peng Y L,et al.Blended hybrids basedon silsesquioxane-OH and epoxy resins[J].Journal ofApplied Polymer Science,2007,106(6):4 117-4 123.
[18]Zhang Z P,Gu A J,Liang G Z,et al.Thermo-oxygendegradation mechanisms of POSS/epoxy nanocomposites[J].Polymer Degradation and Stability,2007,92(11):1 986-1 993.
[19]张增平,梁国正,刘继三,等.笼型倍半硅氧烷(POSS)/环氧杂化树脂体系固化反应动力学及性能研究[J].中国胶粘剂,2007,16(9):1-4.
[20]过梅丽.高聚物与复合材料的动态力学热分析[M].北京:化学工业出版社,2002.
基本信息:
DOI：10.13416/j.ca.2011.09.007
中图分类号:TQ433.5
引用信息:
[1]张增平,梁国正,顾嫒娟.氨基POSS/环氧树脂有机无机杂化材料的动态力学性能[J].中国胶粘剂,2011,20(09):1-4.DOI:10.13416/j.ca.2011.09.007.
基金信息:
中国博士后科学基金一等资助项目(20090450102);中国博士后科学基金特别资助项目(201003661); 长安大学基础研究支持计划资助项目(CHD2009JC083)
2011-09-30
2011-09-30