CAJ | 학술논문

采用自制的圆锥式混炼器对环氧树脂(EP)/ZnO晶须复合材料进行共混。研究了ZnO晶须含量、混炼器混合和机械混合两种方式以及混炼器混炼间隙对EP/ZnO晶须复合材料力学性能和导热系数的影响。研究发现，无论采用何种混合方式，随着ZnO晶须含量的增加，EP/ZnO晶须复合材料的力学性能都呈现出先增大后减小的趋势；混炼器混合的效果好于机械混合。EP/ZnO晶须复合材料的拉伸强度和冲击强度在混炼器混炼间隙为1 mm、ZnO晶须质量分数分别为5%和2%时取得最大值，分别为31.55 MPa和12 kJ/m2，相比同体系下的机械混合方式， EP/ZnO晶须复合材料的拉伸强度和冲击强度分别提高了14.3%和74.4%。继续增大混炼器混炼间隙会导致EP/ZnO晶须复合材料的力学性能变差。EP/ZnO晶须复合材料的导热系数随ZnO晶须含量的增加而增大，但混合方式对其影响不大；当ZnO晶须含量相同时，随着混炼器混炼间隙的增大，EP/ZnO晶须复合材料的导热系数有小幅增加。
채용자제적원추식혼련기대배양수지(EP)/ZnO정수복합재료진행공혼。연구료ZnO정수함량、혼련기혼합화궤계혼합량충방식이급혼련기혼련간극대EP/ZnO정수복합재료역학성능화도열계수적영향。연구발현，무론채용하충혼합방식，수착ZnO정수함량적증가，EP/ZnO정수복합재료적역학성능도정현출선증대후감소적추세；혼련기혼합적효과호우궤계혼합。EP/ZnO정수복합재료적랍신강도화충격강도재혼련기혼련간극위1 mm、ZnO정수질량분수분별위5%화2%시취득최대치，분별위31.55 MPa화12 kJ/m2，상비동체계하적궤계혼합방식， EP/ZnO정수복합재료적랍신강도화충격강도분별제고료14.3%화74.4%。계속증대혼련기혼련간극회도치EP/ZnO정수복합재료적역학성능변차。EP/ZnO정수복합재료적도열계수수ZnO정수함량적증가이증대，단혼합방식대기영향불대；당ZnO정수함량상동시，수착혼련기혼련간극적증대，EP/ZnO정수복합재료적도열계수유소폭증가。
A self-made conical mixer was used to improve the dispersion behaviors of ZnO whisker in epoxy resin. Mechanical properties and thermal conductivities were investigated to discuss the influences of the content of ZnO whisker,the ways of the mechanical mixing and the conical mixer mixing,and the mixer clearance of the conical mixer. The results show that,no matter what the mixing method is,the mechanical properties of EP/ZnO whisker composites are increase with increasing ZnO whisker content to some extent and then decrease at higher ZnO whisker content. Compared to the mechanical mixing,better results are achieved when the conical mixer is used. The maximum tensile strength(31.55 MPa)or the impact strength(12.0 kJ/m2)of the composites are obtained with addition of 5%or 2%(mass fraction) ZnO whisker when the mixer clearance is 1 mm with 14.3%or 74.4%increase compared to mechanical mixing. Further increasing mixing clearance of the conical mixer will leads to worse results. Thermal conductivities of the composites is mainly affected by the ZnO whisker content, while mixing method do not have much influence on it. When ZnO whisker content is the same,a small increase of thermal conductivities of the composites is obtained with the increasing the mixer clearance.