This study investigated the production of phosphate glass fiber/polylactic acid (PGF/PLA) commingled yarns, textiles and composites for biomedical applications. The PGF volume contents of the composites investigated were 25% and 40%. Plain weave textiles with yarn counts of 10 warp/cm and 6 weft/cm were produced using a commercial weaving machine. An orthogonal array design (OAD) was employed as a statistical method to investigate the effects of compression molding parameters (processing temperature, preheating time, compression time, and pressure) on flexural strength and porosity of PGF/PLA textile composites. Processing temperature showed the most significant effect in achieving maximum laminate flexural strength and molecular weight of PLA. Processing models were developed using regression techniques to predict the laminate flexural strength and the molecular weight of PLA. Composites with fiber contents of 25 and 40 vol% produced using optimized processing conditions identified by the processing models, provided flexural strengths of 236 MPa and 293 MPa, respectively.

中文翻译：

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用于商业生产的磷酸盐玻璃纤维/聚乳酸混纺纱复合材料的加工和表征

本研究调查了用于生物医学应用的磷酸盐玻璃纤维/聚乳酸 (PGF/PLA) 混纺纱线、纺织品和复合材料的生产。所研究的复合材料的 PGF 体积含量分别为 25% 和 40%。使用商用织机生产纱线支数为 10 经线/厘米和 6 纬线/厘米的平纹织物。采用正交阵列设计 (OAD) 作为统计方法来研究压缩成型参数（加工温度、预热时间、压缩时间和压力）对 PGF/PLA 纺织复合材料的弯曲强度和孔隙率的影响。加工温度在实现最大层压板弯曲强度和 PLA 分子量方面表现出最显着的影响。使用回归技术开发了加工模型，以预测层压板的弯曲强度和 PLA 的分子量。使用加工模型确定的优化加工条件生产的纤维含量为 25 和 40 vol% 的复合材料分别提供 236 MPa 和 293 MPa 的抗弯强度。