Amino plastic English name: MF, UF
Specific gravity: 1.5 g / cm 3 molding shrinkage: 0.6-1.0%
Molding temperature: 160-180 ° C
Material performance
Good arc resistance and electrical edge, good water and heat resistance, suitable for compression molding. Suitable for making arc-resistant electrical parts and explosion-proof electrical appliances
Molding performance
1. The activity is good, the hardening speed is fast, so the preheating and molding temperature should be appropriate, and the coating, mold clamping and pressing speed should be fast.
2. The molding shrinkage rate is large.
3. The water contains more volatiles, is easy to absorb moisture, agglomerates, should be preheated and dried during molding, and prevent re-absorption, but when it is too dry, the activity will decrease. Moisture and decomposition products are formed during molding. They are acidic. The mold should be chrome-plated to prevent corrosion and should be vented during molding.
4. The molding temperature has a great influence on the quality of plastic parts. If the temperature is too high, decomposition, discoloration, and uneven luminescence of bubbles will occur. When the temperature is too low, the activity will be poor and dull.
5. The material is fine, the specific volume is large, and the material is inflated. When the large plastic parts are formed by pre-pressing ingot, it is easy to produce ripples and flow patterns, so it is generally not suitable to adopt.
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