CAJ | 학술논문

在双螺杆挤出机中，采用熔融法制备了高含量玻璃纤维(GF)增强尼龙(PA)66复合材料，研究了不同GF含量对复合材料力学性能、加工性能和表面光滑程度的影响，并通过扫描电子显微镜对其微观结构进行了表征。试验结果表明，当PA66，GF，滑石粉，其它助剂质量分数分别为37%，50%，10%，3%时，复合材料的拉伸强度为175 MPa，悬臂梁冲击强度为41 kJ/m2，弯曲弹性模量为11.2 GPa；生产加工顺利，且表面光滑无“浮纤”；同时，微观结构显示GF和滑石粉与基体树脂结合良好。
재쌍라간제출궤중，채용용융법제비료고함량파리섬유(GF)증강니룡(PA)66복합재료，연구료불동GF함량대복합재료역학성능、가공성능화표면광활정도적영향，병통과소묘전자현미경대기미관결구진행료표정。시험결과표명，당PA66，GF，활석분，기타조제질량분수분별위37%，50%，10%，3%시，복합재료적랍신강도위175 MPa，현비량충격강도위41 kJ/m2，만곡탄성모량위11.2 GPa；생산가공순리，차표면광활무“부섬”；동시，미관결구현시GF화활석분여기체수지결합량호。
High content glass fiber(GF) reinforced polyamide(PA) 66 composites was obtained in the twin-screw extruder by melting method,the effects of GF content on the mechanical properties,processing properties and surface smoothness were studied, and the microstructure was characterized.The results show that the tensile strength of the composite is 175 MPa,the izod impact strength is 41 kJ/m2,and the flexural modulus is 11.2 GPa when the content of GF is 50%,talcum is 10%,PA66 is 37%and the other additives is 3%.Composite has good manufacturing performance and high smooth surface with no GF exposed.Additionally, the microstructure reveals that there is a good interfacial bonding between bulk resin and GF and minerals.