一、前言将塑料试件浸入化学介质中,每隔一定时间取出测其重量,求其重量变化规律,称为增重法。从试件重量变化规律,结合外观等变化,可在一定程度上反映出材料的耐蚀性。当然,就耐蚀性研究来说,单用此法还不完善。但由于其操作简便、精度较高,用于研究扩散渗透,仍不失为一种有效方法。 First, the preface The plastic specimen immersed in the chemical medium, remove the measured weight at regular intervals to find the law of weight changes, known as weight gain method. From the specimen weight changes, combined with changes in appearance, to a certain extent, reflect the corrosion resistance of the material. Of course, the study of corrosion resistance, this method alone is not perfect. However, due to its simple operation and high precision, it is still an effective method to study diffusion and infiltration.