MELAMINE RESIN CAS 9003-08-1

Specification

Melting point:>330 ° C

Density: 1.13-1.14 g/cm3

Appearance: Buffered acute solution

Application

1. In the leather industry, melamine resin is a commonly used pre tanning, retanning, and filling resin, among which trimethylol melamine resin is the most widely used amino resin. Amino resin has a tanning mechanism similar to aldehyde tanning: the prepolymer penetrates into the skin, and as the pH value decreases, the prepolymer automatically condenses into molecules of a certain size within the skin. Through the condensation of the active NHCH2OH in the molecule with the amino groups on the collagen peptide chain, a covalent cross-linking system is formed to achieve the purpose of tanning. Meanwhile, amino resin has a filling effect. Melamine resin tanning agent is used in the retanning of chrome tanned light leather in Chemicalbook, resulting in fine grain surface, full body bone, significant thickening, good whitening effect, and good light resistance. And it has good compatibility with other tanning agents. Just like the combination of plant tanning agents, it can promote the penetration and absorption of plant tanning agents, increase the wear resistance and weather resistance of the leather. If used for retanning suede leather, it has a good pilling effect. 2. The principle and performance characteristics of using melamine formaldehyde resin as a wet strengthening agent and water resistance agent in the papermaking industry. Due to the presence of hydroxymethyl groups in melamine formaldehyde resin, it can form etherification structures between fiber bundles, and the cross-linking between different molecules produces water resistance, which enables the paper to achieve wet strength effect. Therefore, it is mainly used as a wet strengthening agent and water resistance agent in the papermaking industry. The main substance used in the papermaking industry is trimethylolmelamine, but due to its unsatisfactory stability, water solubility, and free formaldehyde content, as well as its adverse effects on the whiteness and durability of paper, modified resins are currently widely used.

Packing

180kg/drum

ChemicalCAS.com offers price quotation and technology support of chemical from China. In the quotation from China factory supplier, we will include price terms, payment, lead time, COA, TDS, MSDS etc. We make sure the reliable purchase source and product quality. If you need to buy chemical from China, please feel free to contact sales@chemicalcas.com