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| Brand Name: | Shuanghaijin |
| Model Number: | A5 |
| MOQ: | 1Ton |
| Price: | USD 870/Ton |
| Payment Terms: | L/C, D/A, D/P, T/T |
| Supply Ability: | 10000Ton/Tons per month |
GB13455 Amino Plastic Melamine Molding Powder UM Resin Compond
CAS 108-78-1 PH 8. Urea Moulding Compound Resin Powder Urea Resin
Product description
Urea-formaldehyde resin is also known as urea formaldehyde resin. English abbreviation UF, is urea and formaldehyde in the catalyst (alkaline or acidic catalyst) under the action of condensation into the initial urea formaldehyde resin, and then under the action of curing agent or additives, the formation of insoluble, non-melting thermosetting resin at the end. Cured urea-formaldehyde resin is lighter in color than phenolic resin, translucent, weak acid and alkali resistance, good insulation, excellent wear resistance, low price.
The average molecular weight is about 10000. Linear urea-formaldehyde oligomer can be obtained by condensation of urea and 37% formaldehyde aqueous solution under the catalysis of acid or alkali. In industry, alkali is used as catalyst, and the molar ratio of formaldehyde/urea is 1.5~2.0 at about 95℃ to ensure the resin can be cured. The first step of the reaction is to produce one and two hydroxymethyl urea, and then further condensation of hydroxymethyl and amino groups to obtain a soluble resin
| Melamine | 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 | |
| Haze degree | ≤10 | ≤20 | ≤20 | ≤30 | ≥30 | ≥50 | |
| Color degree | ≤10 | ≤20 or bluish and greenish | ≤20 or bluish and greenish | ≤30 or bluish and greenish | ≥30 | ≥50 |
Storage:
Storage of melamine should be stored in a humidity of 30% to 50%, in a relatively dry, ventilated, stored environment,
Note: After opening the package, it should be sealed immediately to avoid the influence of moisture and moisture.
Packing & Delivery
Packing: white bag, content according to customer's request.
Delivery time: 15-25 days after order confirmation, subject to the minimum order quantity.
Payment Terms: T/T, Western Union, Paypal, L/C at sight.
Mode of transportation :FOB/CIF by sea/air, express, etc.
why choose us?
1. Customization can be provided according to needs.
2. Environment-friendly materials, standard production.
3. Timely and considerate service.
