Melamine-formaldehyde resin is a polymer obtained by the reaction of melamine with formaldehyde. It's also known as melamine formaldehyde resin, melamine resin, which has the English abbreviation of MF. After the cross-linking reaction through heat molding , the product of melamine resin is a non-melting thermosetting resin. It is customarily with urea resin and are collectively known as amino resins .
Physical
property:
|
Property
|
Unit
|
Compression
|
Injection
|
|
Appearance
|
-
|
Powder / Granular form
|
Granular form
|
|
Specific Gravity
|
-
|
1.45-1.55
|
1.45-1.55
|
|
Bending Strength
|
Mpa
|
79.0 Min.
|
79.0 Min.
|
|
Charpy Impact Strength
|
Kj / cm2
|
2.0 Min.
|
2.0 Min.
|
|
Water Absorption
|
%
|
0.8 Max.
|
0.8 Max.
|
|
Insulation Resistance
|
|
10
|
10
|
|
Disc Flow
(2g material, at 140˚c)
|
mm.
|
87 Min.
|
105 Min.
|
|
Curing Time
(2g material, at 140˚c)
|
sec.
|
100 Min.
|
140 Min.
|
Molding Condition
|
TYPE
|
ITEM
|
UNIT
|
CONDITION
|
|
COMPRESSION
|
Mold Temperature
|
˚c
|
160 - 165
|
|
|
Mold Pressure
|
Kg / cm2
|
150 - 200
|
|
|
Barrel Zone Temperature
|
˚c
|
60 - 80
|
|
|
Barrel Front Zone Temperature
|
˚c
|
80 - 100
|
Advantages:
The cured melamine formaldehyde resin is colorless and transparent, stable in boiling water, and can even be used at 150 °C. It has self-extinguishing property, arc resistance and good mechanical properties.
Applications:
The melamine resin is added to the inorganic filler to form a molded product, which is rich in color and is mostly used for decorative plates, tableware, and daily necessities. The appearance of the tableware resembles porcelain or ivory, which is not easy to be brittle and suitable for mechanical washing. The melamine resin is mixed with a urea-formaldehyde resin to form an adhesive for the manufacture of a laminate. The melamine resin modified with butanol can be used as a coating and a thermosetting lacquer and so on.
Storage:
1. Store in a cool,dry and ventilated storehouse away from moisture
2. Avoid handling or transporting together with acidic or alkaline substances
3. Prevent the material from rain and insolation
4. Load and unload carefully and protect from package damage
5. In the event of a fire,use water,soil or carbon dioxide fire extinguishing media
Factory Tour:
