White Powder Melamine Formaldehyde Resin Basic Organic Chemicals

Basic Organic Chemicals Sulfonated Melamine Formaldehyde Melamine SMF Powder
 
JF SULFONATED MELAMINE FORMALDEHYDE RESIN Product Description:
 
Sulfonated melamine formaldehyde resin superplasticizer belongs to a water-soluble polymer resin, colorless, good thermal stability, when used in concrete mixtures, it has good dispersibility to cement, high water reduction rate, and early strength effect. Significantly, it basically does not affect the setting time and air content of concrete. Melamine-formaldehyde resin superplasticizer has high water-reducing rate. Within the range of dosage, the water-reducing rate can reach 15% to 25%, and the durability of concrete is significantly improved.
 

 

 

 
Process Flow:
 
 
                 Addition reaction             Sulfonation reaction                   Polycondensation reaction
 
 
         Melamine monomer → methylol trimer → methylol trimer → sulfonated melamine formaldehyde
 
 
                     ↑   Cyanamide         ↑   Cyanamide sulfonate      Aqueous resin solution
 
 
                                            Formaldehyde            Sulfonating agent   ↓
 
 
                       White Powder Products ← Spray Drying ← Neutralization ← Alkali
 
Melamine-formaldehyde Resin Usage:
The melamine resin can be obtained by condensation polymerization of melamine and formaldehyde, which can be used in the plastics and coatings industry as well as anti-folding and anti-shrinking treatment agents for textiles. The modified resin can be used as a metallic paint with bright color, durability and hardness. It can also be used for sturdy, heat-resistant decorative sheets, moisture-proof paper and gray leather suede, synthetic fire-retardant laminate adhesives, water repellent fixatives or hardeners. 582 melamine resin prepared from melamine, formaldehyde and butanol. It is especially effective as a leveling agent for solvent-based polyurethane coatings.
The melamine resin prepared by condensation polymerization of melamine and formaldehyde is widely used in the manufacture and processing of wooden building templates. It can be used for waterproofing of the surface of the template and adhesion of the wood core board, increasing the number of times the template is reused.
 
Melamine-formaldehyde Resin Chemical Properties:
Non-flammable, stable in nature at room temperature. The aqueous solution is weakly alkaline (pH=8), and can form melamine salts with hydrochloric acid, sulfuric acid, nitric acid, acetic acid, oxalic acid, etc. Under neutral or slightly alkaline conditions, it condenses with formaldehyde to form various methylol melamines, but under slightly acidic conditions (pH=5.5~6.5), it undergoes polycondensation with methylol derivatives to form resins. When hydrolyzed by strong acid or strong alkali aqueous solution, the amine group is gradually replaced by the hydroxyl group to form cyanuric acid diamide first, further hydrolyzed to form cyanuric acid monoamide, and finally cyanuric acid.
 
Melamine-formaldehyde Resin Dosage:
Dry mixed homogeneously with other ingredients of dry mortar and packaged as one product, which can be at job site mixed with recommended dosage of water for application.
Recommended dosage is 0.30-1.00% based on binder weight. The detailed dosage should be determined by test in advance according to local raw materials and construction regulation.
 
Package,Storage & Transportation:
 
For powder, packed in 25kg PE-lined woven bag.
Storage and transportation should be carried out in cool and dry condition. Under high temperature and high humidity, product should be kept away from moisture and pressure to avoid coalescence or agglomeration.