高密度聚乙烯
材料科学
抗弯强度
复合材料
极限抗拉强度
聚乙烯
造型(装饰)
纤维
弯曲模量
体积热力学
物理
量子力学
作者
Ameya Borkar,Andreas Hendlmeier,Žan Simon,James D. Randall,Filip Stojcevski,Luke C. Henderson
摘要
Abstract Recycled high‐density polyethylene (r‐HDPE) was combined with waste carbon fiber by loading 6 k, 12 k, and 24 k tows through an extruder to create thermoplastic/carbon pellets with fiber volume fractions of 11.2%, 18.9%, and 29.5%, respectively. Tensile and flexural coupons were subsequently produced via injection molding and novel 3D printing. The addition of carbon into r‐HDPE in all cases showed increased mechanical properties. Maximum increases were observed through the inclusion of 29.5% fiber volume fraction. Increases in tensile and flexural modulus of up to 2.9 GPa (+505.9%) and 5.8 GPa (+711.0%) respectively were observed for r‐HDPE/carbon fiber (CF) samples. Increases in tensile and flexural strengths of up to 57.9 MPa (+311.8%) and 47.7 MPa (+188.0%) respectively were observed for 29.5% r‐HDPE/CF samples. Some variance in mechanical performance between injection molded and 3D printed samples was observed indicating production methodology might influence final material performance.
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