Retention agent

A retention agent is a chemical process that improves the retention of a functional chemical in a substrate. The result is that totally less chemicals are used to get the same effect of the functional chemical and fewer chemicals go to waste.

Applications

Retention agents (retention aids) are used in the papermaking industry. These are added in the wet end of the paper machine to improve retention fine particles and fillers during the formation of paper. Retention aids can also be used to improve the retention of other papermaking chemicals, including sizing and cationic starches. The improved retention of papermaking furnish components improves the operational efficiency of the paper machine, reduces the solids and organic loading in the process water loop, and can lower overall chemical costs. Typical chemicals used as retention aids are: polyacrylamide (PAM), polyethyleneimine (PEI), colloidal silica, and bentonite.

gollark: Another issue with voting as a system for dealing with politicians doing stupid things is that it's very slow.
gollark: As a vegetarian, I disagree.
gollark: I'm subscribed to a service which sends me emails about what my local MP (I think the approximate US equivalent is a senator?) does, but it turns out it's actually very boring and I have no idea if they're doing a good job.
gollark: In theory voters should do that, but it's hard to actually *check* if your politician did stupid things, and it is NOT very granular.
gollark: It would probably be good if there was some mechanism for punishing politicians who spend money on things which turned out to be bad/stupid/pointless. Although someone would have to evaluate bad/stupid/pointlessness somehow.

See also


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