amino resin? Where is amino resin generally used?

amino resinis a general term for resins formed by polycondensation of amino-containing compounds such as urea, melamine or benzoguanamine with formaldehyde and alcohols. Important resins are urea formaldehyde resin (UF), melamine formaldehyde resin (MF) and polyamide polyamine epichlorohydrin (PAE).

amino resin?

According to the main categories of amino resins, introduce their uses

amino resinPurpose 1. Application

is mainly used as paper wet strength agent, coating crosslinking agent, colloidal flocculant, papermaking adhesive.

amino resinPurpose 2. Application

is mainly used for papermaking wet strength agent, flocculant, adhesive

, because the resin contains a large number of imine and tertiary amine groups, containing lone pairs of electrons, it can be cationic only in strong acidic medium, but mainly in the form of free amine under weak acidic conditions, and the concentration of amine cation is very low. This structure and performance determines that the resin only has a large solubility in a strong acidic medium. Therefore, the modification is mainly its water solubility, the introduction of more sex base or quaternary money base, so that it can show cationic in a wide range of values, to achieve the purpose of combining with the fiber.

amino resinPurpose 3. Application

is mainly used as wet strength agent, water resistance agent.

Polyamide polyamine epichlorohydrin resin (PAE resin for short) belongs to a kind of water-soluble, cationic and thermosetting resin. It has the advantages of good moisture gain, no formaldehyde, less dosage, less yellowing of paper, less harm, convenient use, easy recovery of paper loss, suitable for medium-alkaline papermaking, and has the advantages of retention aid and filtration aid. The cost of such products is relatively high.