Impregnation modeling and preparation optimization of continuous glass fiber reinforced polylactic acid filament for 3D printing,Polymer Composites

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Impregnation modeling and preparation optimization of continuous glass fiber reinforced polylactic acid filament for 3D printing
Polymer Composites ( IF 4.8 ) Pub Date : 2021-08-14 , DOI: 10.1002/pc.26255
Liguo Yu ₁ , Ke Chen ₁ , Ping Xue ₁ , Yonghui Cui ₁ , Mingyin Jia ₁

Affiliation

Continuous glass fiber reinforced polylactic acid (CGF/PLA) composites were prepared by 3D printing technology in this study. The multi-roll melt impregnation mold was manufactured according to the melt impregnation model. CGF/PLA filament was prepared by a melt impregnation device, and then used to prepare CGF/PLA composite materials by the self-modified 3D printer device. The full impregnation of the fibers was achieved by the action of the coverage angle of the tension roller in the impregnation mold. The effects of the total coverage angle, traction speed, fiber content, and impregnation temperature on the fiber impregnation effect and 3D printed product performance were studied. The bending strength, tensile strength, impact strength, and interlayer shear strength of the printed sample reached 312, 220, 154, and 14â€‰MPa, respectively. The strategy in this study can effectively improve the impregnation effect of PLA resin on CGFs and promote the development and application of 3D printing technology in the field of high-performance composite manufacturing.

中文翻译：

3D打印用连续玻璃纤维增强聚乳酸长丝的浸渍建模及制备优化

本研究采用 3D 打印技术制备了连续玻璃纤维增强聚乳酸 (CGF/PLA) 复合材料。根据熔体浸渍模型制作多辊熔体浸渍模具。通过熔体浸渍装置制备CGF/PLA长丝，然后通过自行改造的3D打印机装置制备CGF/PLA复合材料。通过张力辊在浸渍模具中的覆盖角的作用，实现了纤维的完全浸渍。研究了总覆盖角、牵引速度、纤维含量和浸渍温度对纤维浸渍效果和3D打印产品性能的影响。打印样品的弯曲强度、拉伸强度、冲击强度和层间剪切强度分别达到 312、220、154 和 14 兆帕。

更新日期：2021-08-14

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