1.低透气性汽车胶管近年来,汽车用低透气性空调胶管一般采用聚酰胺树脂膜和橡胶材料,用复合法制造。但由于橡胶与树脂之间粘合性差,当胶管带压输送介质时,往往有气体或液体渗透并滞留于橡胶与树脂膜的界面间,产生局部膨胀。为此,在树脂表面需涂覆粘合剂,这不仅需要增加工序,还 1. Low Breathability Auto Hose In recent years, automotive low air permeability air-conditioners commonly used polyamide resin film and rubber materials, manufactured using the composite method. However, due to the poor adhesiveness between the rubber and the resin, when the hose is pressed with the transmission medium, gas or liquid often permeates and stays in the interface between the rubber and the resin film, resulting in local expansion. For this reason, an adhesive is applied to the surface of the resin, which requires not only an increase of the process but also the use of an adhesive