中国塑料2025，Vol.39Issue(6)：14-18,5.DOI:10.19491/j.issn.1001-9278.2025.06.004
双螺杆挤出机螺杆组合对碳纤维增强聚酰胺6均匀性的影响
Effect of screw configuration of twin-screw extruder on uniformity of carbon-fiber-reinforced polyamide 6
摘要
Abstract
Four distinct screw configurations were evaluated for fabricating polyamide 6(PA6)/carbon fiber(CF)com-posites.The impact of screw design on material uniformity was systematically assessed by characterizing residence time distribution,fiber length retention,and dispersion homogeneity.The results indicated that the slotted screw elements not only extended material residence time significantly but also induced divergent flow paths and elongational mixing,en-hancing fiber dispersion.The 30° kneading block generated peak shear stress,effectively refining carbon fiber length through intensified mechanical action.The slotted-thread configuration improved composite uniformity by 52%com-pared to the baseline design,demonstrating superior fiber alignment and matrix-fiber integration.This study underscores the critical role of screw geometry in tailoring shear intensity and flow dynamics to achieve high-performance PA6/CF composites.关键词
双螺杆挤出机/螺杆组合/碳纤维/聚酰胺6/开槽螺纹/均匀性/纤维保留长度Key words
twin-screw extruder/screw combination/carbon fiber/polyamide 6/slotted thread/uniformity/fiber retention length分类
化学化工引用本文复制引用
何浪,刘江林,杨冬冬,梁建国,赵润田,王治辉,李晓东,陈占春..双螺杆挤出机螺杆组合对碳纤维增强聚酰胺6均匀性的影响[J].中国塑料,2025,39(6):14-18,5.基金项目
国家自然科学基金(52075359、52075361) （52075359、52075361）
山西省科技重大专项(20201102003、20181102011) （20201102003、20181102011）
校地合作产业科技引导专项项目(2022XDHZ08) （2022XDHZ08）
中国博士后科学基金(2020M670710) （2020M670710）
