将一个新的一次性医用口罩剪开,取内层,裁剪出长宽各为约1mm的部分,装样,用SEM进行新口罩内层的表面形貌进行观测,调整清晰度后保存照片。
Cut a new disposable medical mask, take the inner layer, cut out the parts with length and width of about 1mm, load samples, observe the surface morphology of the inner layer of the new mask with SEM, and save the photos after adjusting the definition.