CAJ | 학술논문

以尼龙(PA)66和高流动性PA6为基体树脂，采用熔融共混方法制备了PA66/高流动性PA6/GF复合材料，考察了高流动性PA6用量对复合材料的结晶熔融行为、热变形温度(HDT)、熔体流动速率(MFR)、表面性能和力学性能的影响。结果表明，在GF质量分数为40%的情况下，当高流动性PA6用量不高于基体树脂总质量的20%时，复合材料表现出PA66的结晶熔融行为特征，HDT随高流动性PA6用量的增加略有下降；随高流动性PA6用量增加，复合材料的MFR显著提升；当高流动性PA6用量达到基体树脂总质量的20%时，复合材料制品表面浮纤问题得到解决，此时复合材料的拉伸和弯曲强度与未加高流动性PA6时相当，简支梁和悬臂梁缺口冲击强度则分别提高了17.6%和16.4%，MFR为18.3 g/10 min，较未加高流动性PA6时提升1倍，具有最佳的综合性能。
이니룡(PA)66화고류동성PA6위기체수지，채용용융공혼방법제비료PA66/고류동성PA6/GF복합재료，고찰료고류동성PA6용량대복합재료적결정용융행위、열변형온도(HDT)、용체류동속솔(MFR)、표면성능화역학성능적영향。결과표명，재GF질량분수위40%적정황하，당고류동성PA6용량불고우기체수지총질량적20%시，복합재료표현출PA66적결정용융행위특정，HDT수고류동성PA6용량적증가략유하강；수고류동성PA6용량증가，복합재료적MFR현저제승；당고류동성PA6용량체도기체수지총질량적20%시，복합재료제품표면부섬문제득도해결，차시복합재료적랍신화만곡강도여미가고류동성PA6시상당，간지량화현비량결구충격강도칙분별제고료17.6%화16.4%，MFR위18.3 g/10 min，교미가고류동성PA6시제승1배，구유최가적종합성능。
Taking nylon (PA) 66 and high-flow PA6 as martix resin,PA66/high-flow PA6/glass fiber (GF) composites were prepared by melt blending (the mass fraction of GF in the composite is 40%),and effects of the high-flow PA6 content on the crystallization and melting behaviours,heat deformation temperature (HDT),melt flow rate (MFR),surface performances and mechanical properties of the composites were studied. The results show that when the mass ratio of high-flow PA6 and PA66≤1/4, the crys-tallization and melting behaviours of the composites are similar with PA66,and HDT decreases slightly with the increase of the high-flow PA6 content. MFR increases obviously with the increase of the high-flow PA6 content. When the mass ratio of high-flow PA6 and PA66 is 1/4,the problem of floating fiber on the composite part surface is solved,and comparing with the condition of unadding high-flow PA6,the tensile and flexural strength of the composite have no change basically,but the Charpy and Cantilever notched impact strength increase by 17.6%and 16.4%respectively,MFR is 18.3 g/10 min and increases by 100%, which indicate that the composite at this high-flow PA6 content has best comprehensive properties.