工程塑料应用
工程塑料應用
공정소료응용
ENGINEERING PLASTICS APPLICATION
2014年
2期
25-29
,共5页
吴传芬%陈文静%吴东森%邹华维%刘鹏波
吳傳芬%陳文靜%吳東森%鄒華維%劉鵬波
오전분%진문정%오동삼%추화유%류붕파
环氧树脂%9,10-二氢-9-氧杂-10-磷杂菲-10-氧化物%无卤阻燃
環氧樹脂%9,10-二氫-9-氧雜-10-燐雜菲-10-氧化物%無滷阻燃
배양수지%9,10-이경-9-양잡-10-린잡비-10-양화물%무서조연
epoxy resin%9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide%halogen-free flame retardant
采用9，10-二氢-9-氧杂-10-磷杂菲-10-氧化物(DOPO)和DOPO型含磷环氧树脂(DOPO-EP)对双酚A型EP进行阻燃改性，研究了不同磷含量下两种阻燃剂对EP的改性效果。结果表明，随磷含量增加，EP/DOPO与EP/DOPO-EP体系的玻璃化转变温度均降低，但EP/DOPO-EP体系的降幅较小；DOPO与DOPO-EP均能有效地提高EP的阻燃性能，但DOPO-EP的阻燃效果更佳；EP/DOPO-EP体系的综合力学性能高于EP/DOPO体系。当磷质量分数分别为2.5%和1.5%时，EP/DOPO与EP/DOPO-EP体系的垂直燃烧等级均达到UL 94 V-0级，极限氧指数分别为32%和33%。EP/DOPO体系在磷质量分数为2.5%时的残炭率（700℃）为12.27%，较纯EP提高了17.3%，但其拉伸性能、冲击性能和弯曲强度均大幅下降。而EP/DOPO-EP体系在磷质量分数为1.5%时的残炭率（700℃）为20.07%，较纯EP提高了91.9%，其断裂伸长率和弯曲强度分别为2.32%和92.69 MPa，较纯EP分别提高了13.73%和24.27%，拉伸强度和缺口冲击强度分别为35.34 MPa和1.85 kJ/m2，较纯EP仅下降了1.56%和1.07%，综合性能最佳。
採用9，10-二氫-9-氧雜-10-燐雜菲-10-氧化物(DOPO)和DOPO型含燐環氧樹脂(DOPO-EP)對雙酚A型EP進行阻燃改性，研究瞭不同燐含量下兩種阻燃劑對EP的改性效果。結果錶明，隨燐含量增加，EP/DOPO與EP/DOPO-EP體繫的玻璃化轉變溫度均降低，但EP/DOPO-EP體繫的降幅較小；DOPO與DOPO-EP均能有效地提高EP的阻燃性能，但DOPO-EP的阻燃效果更佳；EP/DOPO-EP體繫的綜閤力學性能高于EP/DOPO體繫。噹燐質量分數分彆為2.5%和1.5%時，EP/DOPO與EP/DOPO-EP體繫的垂直燃燒等級均達到UL 94 V-0級，極限氧指數分彆為32%和33%。EP/DOPO體繫在燐質量分數為2.5%時的殘炭率（700℃）為12.27%，較純EP提高瞭17.3%，但其拉伸性能、遲擊性能和彎麯彊度均大幅下降。而EP/DOPO-EP體繫在燐質量分數為1.5%時的殘炭率（700℃）為20.07%，較純EP提高瞭91.9%，其斷裂伸長率和彎麯彊度分彆為2.32%和92.69 MPa，較純EP分彆提高瞭13.73%和24.27%，拉伸彊度和缺口遲擊彊度分彆為35.34 MPa和1.85 kJ/m2，較純EP僅下降瞭1.56%和1.07%，綜閤性能最佳。
채용9，10-이경-9-양잡-10-린잡비-10-양화물(DOPO)화DOPO형함린배양수지(DOPO-EP)대쌍분A형EP진행조연개성，연구료불동린함량하량충조연제대EP적개성효과。결과표명，수린함량증가，EP/DOPO여EP/DOPO-EP체계적파리화전변온도균강저，단EP/DOPO-EP체계적강폭교소；DOPO여DOPO-EP균능유효지제고EP적조연성능，단DOPO-EP적조연효과경가；EP/DOPO-EP체계적종합역학성능고우EP/DOPO체계。당린질량분수분별위2.5%화1.5%시，EP/DOPO여EP/DOPO-EP체계적수직연소등급균체도UL 94 V-0급，겁한양지수분별위32%화33%。EP/DOPO체계재린질량분수위2.5%시적잔탄솔（700℃）위12.27%，교순EP제고료17.3%，단기랍신성능、충격성능화만곡강도균대폭하강。이EP/DOPO-EP체계재린질량분수위1.5%시적잔탄솔（700℃）위20.07%，교순EP제고료91.9%，기단렬신장솔화만곡강도분별위2.32%화92.69 MPa，교순EP분별제고료13.73%화24.27%，랍신강도화결구충격강도분별위35.34 MPa화1.85 kJ/m2，교순EP부하강료1.56%화1.07%，종합성능최가。
Epoxy resin (EP) was modified with two flame retardants including 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO) and DOPO type phosphorus-containing EP (DOPO-EP),the modification effects of these two flame retardants under different phosphorus content were also compared. The results show that with the increase of phosphorus content,the glass transition temperatures of EP/DOPO and EP/DOPO-EP systems also decrease,but the decrease of EP/DOPO-EP system is slight. DOPO and DOPO-EP can both improve the flame retardance of EP,but comparing with that of DOPO,the flame retardant effect of DOPO-EP is much better. The comprehensive mechanical properties of EP/DOPO-EP system are better than those of EP/DOPO system. When the mass fraction of phosphorus is 2.5%and 1.5%separately,the vertical burning rating of EP/DOPO and EP/DOPO-EP system both reach UL 94 V-0 rating and their LOI values are 32%and 33%respectively. The char yield at 700℃of EP/DOPO system is 12.27%and increases by 17.3%comparing with that of unmodified EP when the mass fraction of phosphorus is 2.5%,but the tensile properties,impact properties and flexural strength decrease substantially. Moreover,the char yield at 700℃of EP/DOPO system is 20.07%and increases by 91.9%comparing with that of unmodified EP when the mass fraction of phosphorus is 1.5%,meanwhile,comparing with that of unmodified EP,the elongation at break and flexural strength of the system are 2.32%and 92.69 MPa,increase by 13.73%and 24.27%,the tensile strength and notched impact strength of the system are 35.34 MPa and 1.85 kJ/m2,only decrease by 1.56%and 1.07%,which indicate that the comprehensive properties of the system are best.
