Budamin MF 60I
Amino resin
CAS: 9003-08-1
Molecular Formula: C4H8N6O
Budamin MF 60I - Names and Identifiers
Budamin MF 60I - Physico-chemical Properties
| Molecular Formula | C4H8N6O |
| Molar Mass | 156.15 |
| Density | 1.13-1.14 g/cm3 |
| Melting Point | >330 °C (decomp) |
| Appearance | buffered aqueous solution |
| Storage Condition | -20°C |
| Physical and Chemical Properties | A general term for a resin obtained by condensation polymerization of an amino group-containing compound and formaldehyde. Important urea formaldehyde resin, melamine formaldehyde resin and aniline formaldehyde resin. Generally, an aqueous solution or an ethanol solution can be prepared. It can also be dried as a powdery solid. Most of the hard and brittle, need to add filler. |
| Use | In the system of coatings, adhesives, plastics or tanning materials, and for fabrics, paper shrinkage and wrinkle-proof treatment. |
Budamin MF 60I - Reference Information
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| preparation | 1, synthesis of unmodified melamine resin 219 g of melamine and 50 mL of deionized water were mixed into a three-necked flask at 80 °c in a constant temperature water bath; 10% sodium hydroxide solution was added, adjust the pH of the mixed solution = 8.5, then put 109 g paraformaldehyde into the three-necked flask and react for 15 min; Then add 219 g melamine and 109 g paraformaldehyde into the three-necked flask, at the same time, the temperature of the constant temperature water bath was adjusted to 85 ° C., the pH of the mixed solution was measured and kept at 8.5, and the reaction time was 60 min, then, the pH of the solution is adjusted to 7.0 for a period of reaction, and then the end point of the reaction is judged by the cloud point method, and the reaction product can be taken out after the reaction is completed. 2. Synthesis of monomolecular modified melamine formaldehyde resin 219 g melamine and 50 mL deionized water were mixed in a three-necked flask at 80 ℃ in a constant temperature water bath; add 10% sodium hydroxide solution, adjust the pH of the mixed solution = 8.5, then put 109 g paraformaldehyde into the three-necked flask, react for 15 min; Adjust the temperature of the constant temperature water bath to 85 ℃, measure the pH of the mixed solution and keep it at 8.5. Add 219 g of melamine and 109 g of paraformaldehyde to the three-necked flask, then, 219 g of melamine and 109 g of paraformaldehyde were added to the reaction solution, and the reaction time was min. Then, the pH of the solution was adjusted to = 7.0, and then a certain amount of monomolecular modifier was added. After a period of reaction, the end point of the reaction is judged by the cloud point method, and the reaction product can be taken out after the reaction is completed. When the single molecule modifier was added, the addition time and dosage of the single molecule modifier were changed, and the modification effect of melamine formaldehyde resin was observed. |
| Application | 1. Application in leather industry in leather industry, melamine resin is a commonly used pre-tanning, retanning and filling resin, of which trimethylol melamine resin is the most widely used amino resin. The amino resin has a tanning mechanism similar to that of aldehyde tanning: The prepolymer penetrates into the skin, and with the decrease of pH value, the prepolymer is automatically condensed into a molecule with a certain size in the skin, through the condensation of the active-NHCH 2 OH in the molecule and the amino group on the collagen peptide chain, a covalent cross-linking system is formed to achieve the purpose of tanning. At the same time, the amino resin has a filling effect. Using GPS, IR, 1H-NMR, 13C-NMR and other detection methods, Braum, Aloysins and others found that this resin has both tanning and filling properties, and can be filled in a large number of leather collagen fibers, to achieve the effect of leather body fullness. Melamine resin tanning agent is used in the retanning of chrome-tanned light leather, which makes the finished leather grain surface fine, the body bone is plump, the thickening is obvious, the whitening effect is good, and the light resistance is good. And it has a good compatibility with other tanning agents. The combination of vegetable tanning agents can promote the penetration and absorption of vegetable tanning agents, and increase the abrasion resistance and weather resistance of leather. If it is used for the retanning of the cashmere leather, the effect of the pile is good. 2. Application in Paper Industry The principle and performance characteristics of used as wet enhancer and water-resistant agent because melamine formaldehyde resin contains hydroxymethyl group, it can form etherification structure between fiber bundles, this cross-linking between different molecules produces water resistance, so that the paper sheet obtains the effect of moisturizing strength, so that it is mainly used as a wet enhancer and a water-resistant agent in the paper industry. Trimethylol melamine is mainly used in the paper industry, but its stability, water solubility and free formaldehyde content are not ideal and have adverse effects on the whiteness and durability of paper, therefore, the modified resin is widely used at present. |
| Application | adhesive for plywood and veneer |
| category | flammable liquid |
| toxicity grade | low toxicity |
| Acute toxicity | oral-rat LD50: >10000 mg/kg |
| flammability hazard characteristics | solvent butanol is flammable; Pyrolysis products are toxic |
| storage and transportation characteristics | The warehouse is ventilated and dried at low temperature; Storage and transportation is separated from oxidant |
| extinguishing agent | dry powder, carbon dioxide, sand, foam |
Last Update：2024-06-11 12:41:03
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