Products
HS 29336100 Sulfonated Melamine Formaldehyde Resin Water Repellent Leather Tanning Agent CAS 9003-08-1
Short Description:
Melamine is a thermosetting plastic, it is made of melamine and formaldehyde polymerization reaction degrees. Chemical name Melamine formaldehyde resin, English name Melamine, Chinese translation name Melnai. It has the advantages of non-toxic and tasteless, knock resistance, corrosion resistance, high temperature resistance, low temperature resistance and so on. Compact structure, strong hardness, not easy to break, strong durability. It is widely used in chemical industry, packaging, papermaking, construction, tableware, furniture and so on.
| ITEMS | SPECIFICATIONS |
| Appearance | White Powder |
| Melting Point | 354°C |
| Boiling Point | 557.54℃ |
| Rating | 1.826 |
| Flash Point | 325.2℃ |
| Density | 1.661g/cm3 |
| PH(20% aqueous solution) | 7-9 |
| Water Reduction(%) | ≥14 |
| Moisture Content(%) | ≤4 |
| Water Solubility | 3 g/L (20 ºC) |
Sulfonated Melamine Formaldehyde Resin Production Process:
Melamine-formaldehyde resin, a polymer obtained by the reaction of melamine and formaldehyde. Also known as melamine formaldehyde resin and melamine resin. The English abbreviation MF. Cross-linking reaction occurs during processing and molding, and the product is an infusible thermosetting resin. It is customary to collectively refer to it and urea-formaldehyde resin as amino resin. Its formula: Add 50mL formaldehyde solution and 0.12g urotropine into a three-necked flask with electric stirrer, reflux condenser and thermometer, stir to make them fully dissolved, then add 31.5g of melamine under stirring, and continue stirring After 5 minutes, heat to 80°C to start the reaction; during the reaction, it can be clearly observed that the reaction system turns from turbid to clear. 2. Start measuring the precipitation ratio about 30-40 minutes after the reaction system is cleared. When the precipitation ratio reaches 2:2, immediately add 0.15g (2-3 drops) of triethanolamine, stir evenly, remove the hot bath, and stop the reaction; draw 2 mL of the sample from the reaction solution, cool to room temperature, and add distilled water dropwise under stirring , When adding 2mL of water, the sample becomes turbid and does not become clear after shaking. It means that the precipitation ratio reaches 2:23. Paper impregnation. Pour the prepolymer into a dry petri dish, put 15 pieces of filter paper into the prepolymer and soak for 1-2 minutes; then take it out with tweezers and carefully use a glass rod Hang off the excess prepolymer on the surface of the filter paper, and fix it on a rope with a rack to dry. The dipping is even and thorough. The cured melamine formaldehyde resin is colorless and transparent, stable in boiling water, can even be used at 150°C, and has self-extinguishing, arc resistance and good mechanical properties.
Sulfonated Melamine Formaldehyde Resin Features:
1. With greater chemical activity, high bonding strength, high water resistance, can withstand boiling water for more than three hours, high thermal stability, strong low-temperature curing ability, good abrasion resistance, fast curing, no need for curing agent.
2. The melamine product has better hardness and abrasion resistance than the urea-formaldehyde resin product. It has better resistance to chemicals and electrical insulation properties. However, the adhesive layer is easy to crack after curing. It is not suitable to use modified melamine resin adhesive alone.
3. Short storage period and perishable. It can be made into powder to extend the storage period. Modified melamine resin is more expensive. It is used in the manufacture of plastic veneer panels. It is widely used in furniture, vehicle construction, etc.
About Us:
Shandong Jufu Chemical Technology Co., Ltd. a professional company dedicated to manufacturing& exporting construction chemical products. Jufu has been focused on research, production, and sales of various of chemical products since establishment. Began with concrete admixtures, our main products include: Sodium Lignosulfonate, Calcium Lignosulfonate, Sodium Naphthalene sulfonate formaldehyde, polycarboxylate Superplasticizer and sodium gluconate, which has been widely used as concrete water reducers, plasticizers and retarders.
FAQs
Q1: Why should I choose your company?
A: We have our own factory and laboratory engineers. All our products are produced in a factory, so quality and safety can be guaranteed; we have a professional R&D team, production team and sales team; we can provide good services at a competitive price.
Q2: What products do we have?
A: We mainly produce and sell Cpolynaphthalene sulfonate, sodium gluconate, polycarboxylate, lignosulfonate, etc.
Q3: How to confirm the product quality before placing an order?
A: Samples can be provided, and we have a test report issued by an authoritative third-party testing agency.
Q4: What is the minimum order quantity for OEM/ODM products?
A: We can customize labels for you according to the products you need. Please contact us to make your brand go smoothly.
Q5: What is the delivery time/method?
A: We usually ship the goods within 5-10 working days after you make the payment. We can express by air, by sea, you can also choose your freight forwarder.
Q6: Do you provide after-sales service?
A: We provide 24*7 service. We can talk through email, skype, whatsapp, phone or any way you find convenient.
