CAJ | 학술논문

介绍9,10-二氢-9-氧杂-10-磷杂菲-10-氧化物(DOPO)及其衍生物10-(2,5-二羟基苯基)-10-氢-9-氧杂-10-磷杂菲-10-氧化物(DOPO-HQ)分别反应阻燃聚乳酸(PLA)的机理和对PLA力学性能、阻燃性能、耐热性能的影响.结果表明,少量DOPO对PLA有良好的阻燃效果,少量过氧化二异丙苯(DCP)与DOPO-HQ并用能有效改善PLA的阻燃性能和热稳定性能.5% DOPO-HQ/0.5%DCP阻燃PLA具有良好的综合性能,拉伸强度为49.37MPa,断裂伸长率为5.03%,氧指数为32%,试样热失重5%、50%时的温度分别提高38、36℃.
개소9,10-이경-9-양잡-10-린잡비-10-양화물(DOPO)급기연생물10-(2,5-이간기분기)-10-경-9-양잡-10-린잡비-10-양화물(DOPO-HQ)분별반응조연취유산(PLA)적궤리화대PLA역학성능、조연성능、내열성능적영향.결과표명,소량DOPO대PLA유량호적조연효과,소량과양화이이병분(DCP)여DOPO-HQ병용능유효개선PLA적조연성능화열은정성능.5% DOPO-HQ/0.5%DCP조연PLA구유량호적종합성능,랍신강도위49.37MPa,단렬신장솔위5.03%,양지수위32%,시양열실중5%、50%시적온도분별제고38、36℃.
The mechanism of the reaction between 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide(DOPO) , its deriv-atives 10-(2, 5-dihydroxyl phenyl)-9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide( DOPO-HQ) and the flame-retardant poly-lactic acid(PLA) was presented, and the effects of DOPO and DOPO-HQ on the mechanical properties, flame retardant and heat-re-sistant performance of PLA were studied. The results showed that small amount of DOPO had good flame retardant effect on PLA, and small amount of dicumyl peroxide (DCP) conjugated with DOPO-HQ could improve the flame-retardant properties and thermal stability of PLA effectively. The flame retardant PLA system of 5% DOPO-HQ/0.5% DCP had excellent comprehensive properties; the tensile strength was 49. 37 MPa, elongation at break was 5. 03% , oxygen index was 32% , and the temperature of thermal weight loss 5% ,50% improved 38℃ and 36℃ , respectively.