化工进展
化工進展
화공진전
CHEMICAL INDUSTRY AND ENGINEERING PROGRESS
2014年
3期
753-757
,共5页
高璇%刘立柱%翁凌%金镇镐%朱兴松
高璇%劉立柱%翁凌%金鎮鎬%硃興鬆
고선%류립주%옹릉%금진호%주흥송
甲基纳迪克酸酐%云母带%力学性能%耐热性
甲基納迪剋痠酐%雲母帶%力學性能%耐熱性
갑기납적극산항%운모대%역학성능%내열성
methyl-5-norbornene-2,3-dicarboxylic anhydride%mica tape%mechanical properties%heat resistence
采用甲基纳迪克酸酐(MNA)为环氧树脂主要固化剂,配合桐马酸酐固化环氧树脂E-44制备云母带黏合剂。研究了不同组分配合方案对云母带的力学性能、电学性能、耐热性能的影响。实验结果表明,MNA及桐马分别与E-44反应的摩尔比(MNA∶桐马)=5.5∶4.5时,云母带综合性能最优,纵向弯曲强度为332.79 MPa,横向弯曲强度为319.06 MPa,横向冲击强度为64.25 MJ/m2,纵向冲击强度为47.5 MJ/m2,介电强度为64.62 MV/m,体积电阻率为2.02×1013?·m。且由热重分析(TG)知,甲基纳迪克-桐马-环氧体系具有相对良好的耐热性。
採用甲基納迪剋痠酐(MNA)為環氧樹脂主要固化劑,配閤桐馬痠酐固化環氧樹脂E-44製備雲母帶黏閤劑。研究瞭不同組分配閤方案對雲母帶的力學性能、電學性能、耐熱性能的影響。實驗結果錶明,MNA及桐馬分彆與E-44反應的摩爾比(MNA∶桐馬)=5.5∶4.5時,雲母帶綜閤性能最優,縱嚮彎麯彊度為332.79 MPa,橫嚮彎麯彊度為319.06 MPa,橫嚮遲擊彊度為64.25 MJ/m2,縱嚮遲擊彊度為47.5 MJ/m2,介電彊度為64.62 MV/m,體積電阻率為2.02×1013?·m。且由熱重分析(TG)知,甲基納迪剋-桐馬-環氧體繫具有相對良好的耐熱性。
채용갑기납적극산항(MNA)위배양수지주요고화제,배합동마산항고화배양수지E-44제비운모대점합제。연구료불동조분배합방안대운모대적역학성능、전학성능、내열성능적영향。실험결과표명,MNA급동마분별여E-44반응적마이비(MNA∶동마)=5.5∶4.5시,운모대종합성능최우,종향만곡강도위332.79 MPa,횡향만곡강도위319.06 MPa,횡향충격강도위64.25 MJ/m2,종향충격강도위47.5 MJ/m2,개전강도위64.62 MV/m,체적전조솔위2.02×1013?·m。차유열중분석(TG)지,갑기납적극-동마-배양체계구유상대량호적내열성。
An adhesive in mica tape was prepared from epoxy resin E-44 , using methyl-5-norbornene-2,3-dicarboxylic anhydride (MNA) and Tungma anhydride as curing agents. The effects of mix proportion on the mechanical,dielectric and heat resistance performance of the mica tape were investigated in the present work. The mica tape showed best performance,when molar ratio of MNA and Tungma anhydride reacted respectively with E-44 (MNA∶Tungma) was 5.5∶4.5. In this case, vertical flexural strength of mica tape was 332.79 MPa,lateral flexural strength was 319.06 MPa, lateral impact strength was 64.25 MJ/m2,vertical impact strength was 47.5 MJ/m2,dielectric strength was 64.62 MV/m and volume resistivity was 2.02×1013 ?·m. Thermogravimetric (TG) analysis indicated excellent heat resistance of the MNA-Tungma-epoxy resin system.