Brand Name: | Dongxin |
Model Number: | A1 |
MOQ: | 1Ton |
Price: | USD 230/Ton |
Payment Terms: | L/C,D/A,D/P,T/T |
Supply Ability: | 10000Ton/Tons per month |
Attribute | Value |
---|---|
Other Names | Amino Molding Powder |
Appearance | White color/colourful |
Usage | For making dinnerware |
Packing | 25kg PP bag |
Flow(mm) | 194 |
Cas no. | 108-78-1 |
Mf | (C2H4N6O2)n |
Lifetime | 2 Year |
Urea melamine formaldehyde resin as basic material, combined with senior cellulose intensifier, special conditioning agent, lubricant additives, and pigments. Modified through curing process, this urea-formaldehyde resin incorporates small amounts of melamine, phenol, resorcinol, alkyl amine and furfural to effectively improve water resistance.
The average molecular weight is about 10000. Linear urea-formaldehyde oligomer is obtained by condensation of urea and 37% formaldehyde aqueous solution under acid or alkali catalysis. Industrial production uses alkali as catalyst with formaldehyde/urea molar ratio of 1.5-2.0 at about 95°C to ensure proper resin curing.
Melamine Grade | Premium | Excellent 1 | Excellent 2 | First class | Second level | Third level |
---|---|---|---|---|---|---|
NO. | 1+ | 01 | 02 | 03 | 04 | 05 |
Appearance | White powder with small impurities | White powder with more impurities | White powder with a lot of impurities | White powder with a lot of impurities | White powder with a lot of impurities | Light yellow powder |
Purity% | ≥99.8 | ≥99.8 | ≥99.8 | ≥99.0 | ≤99.0 | ≤99.0 |
Moisture | ≤0.1 | ≤0.1 | ≤0.1 | ≤0.2 | ≥0.2 | ≥0.2 |
PH value | 7.5-9.5 | 7.5-9.5 | 7.5-9.5 | 7.5-9.5 | 7.5-9.5 | 7.5-9.5 |
Ash | ≤0.03 | ≤0.03 | ≤0.03 | ≤0.05 | ≥0.05 | ≥0.05 |
Melamine should be stored in a humidity-controlled environment (30% to 50% RH), in a dry, well-ventilated area. After opening the package, immediately reseal to prevent moisture absorption.