桂林理工大学专业英语 英译汉 (2).doc

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1、桂林理工大学专业英语英译汉(2)动态固化和相容作用对聚丙烯/环氧(PP/epoxy)共混物的形态结构和性能的影响EffectsofdynamicalcureandcompatibilizationonthemorphologyandpropertiesofthePP/epoxyblends木文研究了动态固化和相容作用对聚丙烯/环氧共混物形态结构和性能的影响。加入马来酸酹接枝聚丙烯(MAH-g-PP)以及环氧通过双氧氨(dicyanamide)的动态固化，使得(giveriseto)聚丙烯/环氧共混物中环氧粒子平均粒径(avera洋diameter)减小。I

2、nthispaper;effectsofdynamicalcureandcompatibilizationonthemorphologyandpropertiesofthePP/epoxyblendswerestudied.Theadditionofmaleicanhydride-graftedpolypropylene(MAH-g-PP)anddynamicalcureofepoxybydicyanamidegiverisetodecreasetheaveragediameterofepoxyparticlesinthePP/epoxyblends.在聚

3、丙烯/环氧共混物中，环氧粒子作为(actas)一种冇效的成核剂(nucleatingagents),加速(accelerating)聚丙烯组分的结晶。动态固化和相容作用增大了聚丙稀/环氧共混物中聚丙烯结晶的动力学常数(kineticconstant)K(T)。TheepoxyparticlesinthePP/epoxyblendsactaseffectivenucleatingagents,acceleratingthecrystallizationofPPcomponent.Thedynamicalcureandcompatibilizationincr

4、easethekineticconstantK(T)ofPPcrystallizationinthePP/epoxyblends.环氧树脂的动态固化改进了(leadstoanimprovement)聚丙烯/环氧共混物的模量和强度，同时马来酸酉干接枝聚丙烯的加入增加了(resultsinanincrease)共混物的冲击强度。动态力学结果表明(indicate),马来酸酹接枝聚丙烯的加入改进了聚丙烯与环氧之间的相容性(compatibility),同时通过动态固化，聚丙烯/环氧共混物的储存模量增加。Dynamicalcureoftheepoxyresinle

5、adstoanimprovementinthemodulusandstrengthofthePP/epoxyblends,andtheadditionofMAH・g・PPresultsinanincreaseintheimpactstrength・Dynamicmechanicalthermalanalysis(DM7A)resultsindicatethattheadditionofMAH■呂・PPimprovesthecompatibilitybetweenPPandepoxyresin,andthestoragemodulusofthePP/epox

6、yblendsisincreasedbydynamicalcure.热重分析(Thermogravimetricanalysis)(TGA)结果表明，环氧的动态固化以及马来酸酹接枝聚丙烯的加入改进了聚丙烯/环氧共混物的热稳定性。广角X射线衍射分析(Wide-angleX-raydiffraction)(WAXD)表明聚丙烯/环氧共混物与纯聚丙烯具有同样的结晶结构，表明了(indicating)动态固化和相容作用不破坏(disturb)聚丙烯/环氧共混物的结晶结构。Thermogravimetricanalysis(TGA)resultsshowthatdy

7、namicalcureofepoxyandadditionofMAH-g・PPimprovedthethermalstabilityofthePP/epoxyblends.Wide-angleX-raydiffraction(WAXD)analysisshowsthatthePP/epoxyblendshavethesamecrystallinestructureaspurePP,indicatingdynamicalcureandcompatibilizationdonotdisturbthecrystallinestructureofthePP/epo

8、xyblends.表2说明了动态固化和相容作用对PP/epoxy共