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济南净水器教大家超滤膜如何保存?
2015-3-24 18:04:46

济南净水器http://www.jnccnt.cn/超滤膜制成成品后,需要对其进行保存,膜保存的方法有湿态和干态两种,其目的是为防止膜水解、微生物侵蚀、冻结及收缩变型、膜失效等。

1、济南净水器超滤膜的湿态保存方法保存湿态膜最主要的一点就是始终让膜呈现湿润状态,保存液温度在5~40℃,亚硫酸氢钠的作用是防止微生物在膜表面繁殖及侵蚀膜。甘油的目的是为了降低保存液的冰点,防止因结冰而损坏膜,配方中的亚硫酸氢钠可用戊二醛、硫酸铜等其他对膜无伤害的抑菌剂代替。湿态膜会由于脱水产生收缩变形现象,使膜孔大幅度缩小,或使膜结构遭到破坏,同时使膜的质地变脆,甚至使膜的过滤作用完全失效。
Jinan water purifier ultrafiltration membrane wet wet film preservation method to save the most important thing is to always make the film presents a wet state, save the liquid temperature at 5 ~ 40 ℃, the role of sodium bisulfite is to prevent the propagation of microorganisms on the membrane surface and erosion film. Glycerol purpose is to reduce the freezing point of the preservative solution, bacteriostatic agent in place to prevent damage due to ice formation on the membrane without damage to the other film, the formulation of sodium bisulfite available glutaraldehyde, copper sulfate and the like. Wet membrane deformation due to dehydration shrinkage phenomenon, the membrane pore greatly reduced, or the destruction of the membrane structure, while making the film brittle texture, and even the role of membrane filtration is completely ineffective.
  
2、济南净水器http://www.jnccnt.cn/超滤膜干态膜的保存方法 目前商品化的超滤膜,基本上都是干态膜的形式。因为这不仅有利于存放和运输,而且也是制作膜组件所必需的,制备干态膜,普遍采用脱水剂。
Jinan water purifier ultrafiltration membranes dry storage method currently commercialized membrane, basically in the form of a dry state film. Because this is not only beneficial to store and transport, but also necessary for the production of membrane prepared by dry film, commonly used dehydrating agent.

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