Urea Formaldehyde Moulding Compound For Superior Melamine Dinner Sets
Urea Formaldehyde Moulding Compound for Superior Melamine Dinner Sets
- Flame-Retardant Urea Formaldehyde Moulding Compound - IS 4589 Compliant
- Heat-Resistant UFMC Powder for Switchboards & Electrical Parts
Technical Index
| Number | Test Items | Index | Test Result |
| 1 | Fluidity, mm | 110-140 | 125 |
| 2 | Volatile content %≤ | 5.00 | 3.45 |
| 3 | Exterior | Qualified | |
| 4 | Boiling Water-proof | Qualified | |
| 5 | Flexural Strength, Mpa≥ | 80 | 85 |
| 6 | Impact Strength, KJ/m2≥ | 1.7 | 1.8 |
| 7 | Temperature of hot distortion, ºC≥ | 115 | 125 |
| 8 | Water absorption(Cold water) mg≤ | 100 | 65 |
| 9 | Molding Shrinkage, % | 0.5-1.0 | 0.82 |
| 10 | Dielectric Strength, MV/m ≥ | 7.0 | 10 |
Chemical Composition of Urea Formaldehyde (UF) Moulding Compound
The primary chemical components of urea formaldehyde moulding compound are derived from the polycondensation reaction of urea and formaldehyde. Its structural formula and key characteristics are as follows:
1. Basic Building Blocks
- Monomer Units:
- Urea (CH₄N₂O)
- Formaldehyde (CH₂O)
- These react to form a thermosetting polymer through methylene (-CH₂-) and methylene Gufaith (-CH₂-O-CH₂-) linkages.
2. Molecular Formula
- Empirical Formula:
- C₂H₆N₂O₂ (representing a simplified repeating unit).
- Alternative representations, such as C₃H₈N₂O₃, may describe extended polymer chains or cross-linked structures.
3. Molecular Weight
- Average Molecular Weight:
- Ranges between 90–120 g/mol, depending on the degree of polymerization and cross-linking.
4. Key Structural Features
- Cross-Linked Network:
- Composed of urea-formaldehyde resin with a three-dimensional network stabilized by covalent bonds.
- Functional Groups:
- Amide (-NH-CO-) and hydroxyl (-OH) groups contribute to its rigidity and thermal stability.
5. Additives (Optional)
- Fillers: Cellulose, wood flour, or minerals (to enhance mechanical strength).
- Catalysts: Ammonium sulfate or phosphoric acid (to accelerate curing).
Notes
- The exact chemical formula may vary slightly depending on synthesis conditions (e.g., urea-to-formaldehyde ratio and curing agents).
- UF compounds are thermosetting, meaning they irreversibly harden upon heating due to cross-linking.
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FAQ
Q1: When will I get an answer?
A: We guarantee your quick response and service. The email will be answered within 12 hours, and your questions will be answered in time.
Q2: Do you provide samples?
A: Yes, we can provide 300g samples free of charge, but you need to pay for the freight.
Q3: How long is the shelf life of the goods?
A: The shelf life of our products is 2 years, which is based on dry and ventilated storage.
Q4: What documents can we provide?
A: Commercial invoice, packing list, bill of lading. The documents will be sent by express within 24 hours after you pay in full.
Q5: When is the delivery time?
A: We usually deliver the goods within 15~30 days after receiving payment from customers.
Contact Us
Michael Lin
WeChat/Phone:13459565408
WhatsApp:+86-13459565408
Email:michael@gufaith.com
Website:www.melamine-powder.com
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Have questions about our products or want to discuss a custom order? Our team is ready to help you.