Thank Zhejiang ** film for purchasing our online DMAC concentration meter again

Thank Zhejiang Changxing ** Membrane Technology Co., Ltd. for upgrading and repurchasing our MAY-3001-70HCF online DMAC solution concentration online monitor!

Zhejiang Changxing ** Membrane Technology Co., Ltd. is a company engaged in the production and sales of high quality membrane, membrane components and membrane application equipment. Specializing in all kinds of ultrafiltration membrane research and development, production, sales and technical services, is one of the domestic PVDF membrane, PP membrane manufacturers, from the research and development of membrane components to membrane system application technology system company. Hollow fiber membrane is widely used in industrial and municipal wastewater upgrading and reuse, tap water membrane purification, material concentration and separation, seawater desalination and other fields.

Effect of DMAC concentration on ultrafiltration membrane performance:

The influence of DMAC concentration on the performance of ultrafiltration membrane is mainly reflected in the changes of water flux and retention rate.

The water flux of ‌ hollow fiber membrane increased from 45.3 L·m^-2·h^-1 to 89.4L ·m^-2·h^-1 and the retention rate of ‌ decreased from 99.2% to 83.1% with the increase of DMAC concentration in core solution. ‌ This changing trend can be attributed to the fact that the increase of DMAC concentration may lead to partial dissolution of polysulfone, ‌ increases the diameter of pores on the inner surface of the membrane, ‌ increases the length of finger pores, ‌ increases the water flux and ‌ decreases the retention ratio 1.

In addition, ‌DMAC as an organic solvent, ‌ under specific conditions when used, ‌ need to pay attention to its harm to the human body. ‌ Under high temperature, the influence of ‌DMAC on human body when volatilized steam at high temperature cannot be ignored, ‌ especially has a great impact on the skin, ‌ into the respiratory tract has great harm to human liver, ‌ spleen, ‌ kidney 2. ‌ Therefore, ‌ in the process of using DMAC, ‌ should take appropriate protective measures, ‌ to ensure the safety of operators.

In summary, the variation of ‌DMAC concentration has a significant effect on the performance of ultrafiltration membranes, ‌ especially in terms of water flux and retention. ‌ At the same time, ‌ when using DMAC should pay attention to its safety and potential harm to human health.

                    MAY-3001-70HCF online DMAC concentration monitoring instrument on-site real shooting

MAY-3001-70HCF online DMAC concentration monitoring instrument, used for online detection of DMAC solution concentration, high measurement accuracy, good data stability, convenient installation, a variety of ways, measurement data directly displayed on the instrument display, digital display concentration value, reduce the error, untimely and uncertainty caused by traditional manual detection. Ensure that the concentration is within the range, help improve the quality and stability of the product, reduce the work intensity of the inspection personnel, and save human resources.