In order to reduce the plastic waste generated from the composite manufacturing process and improve the permeability of commercial breathers in high-pressure and high-temperature conditions, jute/polyester hybrid breathing materials were fabricated by the needle-punched method. The thermogravimetric analysis and the related thermal properties of hybrid breathing materials were carried out to verify the feasibility of materials used in the high-temperature environment. Breathing materials were then exposed to humidity atmosphere and hot press conditions respectively. These conditions were chosen to investigate the effect of moisture on breathing materials and replicate the using conditions of breathers in the composite manufacturing process. The scanning electron microscope was used to observe the morphology characteristics of breathing materials before and after use. The moisture absorption, air permeability and tensile properties of breathing materials were evaluated and compared with the unconditioned specimens. The results showed that hybrid breathing materials were sensitive to moisture due to the hydrophilic groups in jute fiber. The permeability of hybrid breathing materials was higher than commercially available breathers at a similar areal weight. The permeability of breathing materials increased with the increase of porosity. Humidity and hot press processing conditions influenced the permeability due to the change of porosity. The hybrid breathing materials had a higher permeability retention rate. They could be reused at least three times, and their permeability could be maintained above 56% of the original data. Higher jute fiber content resulted in higher tensile strength. The tensile strength of the hybrid breathing material was higher in wet conditions. The reuse of the breathing material led to an increase in tensile strength. Finally, the recycling use of breathing materials as composite reinforcement was proposed.

为了减少复合材料制造过程中产生的塑料废料，提高商用呼吸器在高压高温条件下的透气性，采用针刺法制备了黄麻/聚酯混合呼吸材料。进行了混合呼吸材料的热重分析和相关热性能分析，以验证材料在高温环境下使用的可行性。然后将呼吸材料分别暴露于潮湿气氛和热压条件。选择这些条件是为了研究水分对呼吸材料的影响，并在复合材料制造过程中复制呼吸器的使用条件。使用扫描电镜观察呼吸材料使用前后的形貌特征。评估了呼吸材料的吸湿性、透气性和拉伸性能，并与未处理的样品进行了比较。结果表明，由于黄麻纤维中的亲水基团，混合呼吸材料对水分敏感。混合呼吸材料的渗透性高于同等面积重量的市售呼吸器。呼吸材料的渗透性随着孔隙率的增加而增加。由于孔隙率的变化，湿度和热压加工条件影响渗透率。混合呼吸材料具有更高的渗透率保留率。它们至少可以重复使用三次，它们的渗透率可以保持在原始数据的 56% 以上。较高的黄麻纤维含量导致较高的拉伸强度。混合呼吸材料的拉伸强度在潮湿条件下更高。呼吸材料的再利用导致拉伸强度的增加。最后，提出了呼吸材料作为复合增强材料的回收利用。