The viscosity relationship of epoxy floor paint

The viscosity of the product is high, with an induction period and poor compatibility with epoxy resin. The thermal deformation stability of the cured product is low, and the adhesion, strength, and toughness are good. It is mainly used in high solid coatings, sealants, adhesives, and cable connectors. The viscosity of cyclic aliphatic ester cyclic amines is low.

The curing agent has a light appearance, good gloss, and good color retention. Compared with polyamide, it has good chemical resistance, does not turn white in paint, does not require an induction period, but has poor toughness and low curing activity. It can only be cured after heating, and can only be cured at room temperature under the condition of adding accelerators or modification. Aromatic amines in anti-corrosion paint mainly include m-phenylenediamine, which is a liquid with some aliphatic structural characteristics. Other curing agents are solid at room temperature, so it is inconvenient to mix with resin and generally requires heating to cure. It is mainly used in the process of heating solidification. Fluorocarbon paint can also be used as a raw material for modified amine curing agents.

Generally speaking, single polyamines have low molecular weight, strong volatility, high toxicity, high cross-linking density after reacting with epoxy resins, high brittleness of cured products, and are not resistant to impact. Single polyamines, especially aliphatic ones, have low molecular weight, strong volatility, high toxicity, and high cross-linking density after reacting with epoxy resins. The curing of floor paint causes severe whitening of the coating, and the reduced amount of unreacted polyamines will absorb water vapor from the air, causing the coating surface to sweat. The above disadvantages limit the application of single polyamines as curing agents for epoxy resins in floor coatings. In order to overcome the brittleness of amine curing agents, the poor impact resistance, poor weather resistance, and toxic effects of organic silicon high-temperature resistant paints, further modification of amine curing agents is necessary. Obtain non-toxic or low toxicity.

Amine curing agents that can be cured under greenhouse conditions are generally used in excess during the reaction of epoxy zinc rich primer, resulting in high molecular weight of the adducts, increased boiling point and viscosity, and significantly reduced irritation to the skin and mucous membranes. Due to the fast curing reaction of the adducts, the mechanical properties and chemical resistance of the cured products of alkyd paint are slightly worse than those of the original polyamines. Polyamide is formed by the condensation of a fatty polyamine and a dimer of fatty acids. The polyamide curing agent used in alkyd blended paint for floor coatings is mainly composed of high molecular weight and annual varieties. Polyurethane paint polyamide curing agent has excellent comprehensive ability, and the ammonia bond makes it have very good adhesion to various matrix materials, high peel strength, and good wettability. The polyurethane curing process is carried out through amide reaction.

If you have any needs in this regard, please contact us in a timely manner, and we will provide you with the best service. Jinfeng Epoxy Flooring National Free Hotline: 400-856-1101 ext. 8902 Website: http://p.jinfengpaint.com