The filtration problem of colloidal particles in aqueous solutions?
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I have a question for experts: in an alkaline solution, there are glue particles made of polyurethane; their density is 1.6, and the diameter of these particles is greater than 5 mm. To filter out glue particles without the need for recovery. However, when the temperature is 50 degrees, the glue particles become very soft and cannot be filtered through the filter bags; instead, they are divided into even smaller particles by the filter bags, making them more difficult to handle. Do any experts have any good methods or devices to solve this problem?
Thank you for your reply. The existing glue particles are like a paste – will they be chopped up by the filter cloth under vacuum pressure?
That shouldn’t be the case; generally, there’s no need to use anything for scraping. The adhesive will only damage the filter bag, but it won’t cause the particles to become smaller