| 引用本文: | 王砥,张兴文,付强.多羟基POSS对改性环氧网络热性能的影响[J].哈尔滨工业大学学报,2010,42(4):669.DOI:10.11918/j.issn.0367-6234.2010.04.034 |
| WANG Di,ZHANG Xing-wen,FU Qiang.Influence of polyhydroxyl modifier on thermal properties of epoxy resin network[J].Journal of Harbin Institute of Technology,2010,42(4):669.DOI:10.11918/j.issn.0367-6234.2010.04.034 |
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| 摘要: |
| 为改性双酚A型环氧树脂(DGEBA)的热性能,利用γ-氨丙基T8(A-POSS)与苯基缩水甘油醚(PGE)反应制得改性剂多羟基POSS(SP2-POSS),并利用不同质量分数的SP2-POSS(分别为8%,15%,30%,45%,60%,75%)掺杂改性DGEBA高分子交联体系.对改性的DGEBA体系分别进行结构和热性能测试,结构测试结果表明,改性后的体系确实有多羟基存在;热性能测试结构表明,多羟基的存在使得体系的交联度提高,从而使反应固化热、玻璃化转变温度、热失重温度有所提高,其中含75%的改性DGEBA高分子体系具有最好的热性能. |
| 关键词: γ-氨丙基POSS 苯基缩水甘油醚(PGE) 双酚A型环氧树脂(DGEBA) 热性能 |
| DOI：10.11918/j.issn.0367-6234.2010.04.034 |
| 分类号:TQ323.5 |
| 基金项目:国家自然科学基金资助项目(30901136);中央高校基本科研业务费(DL09AB10) |
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| Influence of polyhydroxyl modifier on thermal properties of epoxy resin network |
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WANG Di1,2, ZHANG Xing-wen2, FU Qiang2
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1.Materials Science and Engineering College,Northeast Forestry University,Harbin 150040,China;2.Dept.of Appliced Chemistry,Harbin Institute of Technology,Harbin 150001,China
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| Abstract: |
| To enhance the thermal property of diglycidyl ether of bisphenyl A (DGEBA),(polyhydroxyl) POSS (SP2-POSS) modifier was prepared using a reaction of (γ-aminopropyl)POSS (A-POSS) and phenyl glycidyl ether (PGE).Different fractions of SP2-POSS (8% ,15% ,30% ,45% ,60% and 75% ) were added into diglycidyl ether of bisphenyl A (DGEBA) to modify the network and enhance the thermal property.The results show that the crosslinking-network density,curing heats and glass transition temperature are enhanced due to the existance of the polyhydroxyls.The network containing 75% SP2-POSS possesses the best thermal properties. |
| Key words: (γ-aminopropyl)POSS phenyl glycidyl ether (PGE) diglycidyl ether of bisphenyl A (DGEBA) thermal property |
