CAJ | 학술논문

利用正交试验设计不同实验，用同向双螺杆挤出机制备尼龙(PA)6／PA66复合材料，研究了挤出温度、螺杆转速及产量等工艺参数对复合材料力学性能的影响；对复合材料的冲击断面进行了扫描电子显微镜分析，用光学显微镜观察了复合材料燃烧残留物中玻纤的长度和分布情况。当挤出温度为265℃、螺杆转速为520 r／min、产量为520 kg／h时，制备的复合材料的力学性能最好，其拉伸强度为156.8 MPa，弯曲强度为221 MPa，冲击强度为92.1 kJ／m2。基体树脂对玻纤的浸渍效果较好，玻纤长度为0.4～0.6 mm，且分布较均匀。
이용정교시험설계불동실험，용동향쌍라간제출궤제비니룡(PA)6／PA66복합재료，연구료제출온도、라간전속급산량등공예삼수대복합재료역학성능적영향；대복합재료적충격단면진행료소묘전자현미경분석，용광학현미경관찰료복합재료연소잔류물중파섬적장도화분포정황。당제출온도위265℃、라간전속위520 r／min、산량위520 kg／h시，제비적복합재료적역학성능최호，기랍신강도위156.8 MPa，만곡강도위221 MPa，충격강도위92.1 kJ／m2。기체수지대파섬적침지효과교호，파섬장도위0.4～0.6 mm，차분포교균균。
Different experiments were designed by using orthogonal method,the two-screw extruder was used to prepare the nylon(PA) 6/PA66 composites. The influences of extrusion temperature,screw speed and yield on the mechanical properties of the composites were studied. The impact sections of the composites were analyzed by scanning electron microscopy. The lengths and distribution of glass fibers in the composites were observed by optical microscope. The mechanical properties of PA6/PA66 composites are the best when the extrusion temperature is 265℃,the screw speed is 520 r/min and the yield is 520 kg/h,the tensile strength is 156.8 MPa,the bending strength is 221 MPa,the impact strength is 92.1 kJ/m2. The impregnation effect of the matrix resin on glass fibers is better,the lengths of the glass fibers in the composite are 0.4~0.6 mm and the distribution of the glass fibers is more uniform.