Formaldehyde melamine moulding compound, commonly known as melamine compound, is a polymer obtained by the reaction of melamine and formaldehyde. its main purpose is to make melamine tableware, a small amount for other products. The reaction product is a soluble prepolymer resin. After further processing such as adding fillers, dewatering and grinding, the resin obtained by the reaction can be obtained into a compounded product which is convenient for storage and transportation and has standard chemical and physical properties. After receiving the high temperature and high pressure, the compounded product will produce a cross-linking reaction, and finally formed into a product.
Technical Features
● Due to reaction condition difference, the product molecular weight is different. It can range from water-soluble to insoluble in water or even insoluble and infusible solids.
● The pH value has a great influence on the reaction rate.
● the resin reaction, which is the most important link in the production process. is the first step, and the subsequent processing of the reaction is mainly based on physical changes.
● Some equipments are versatile, for A1 (urea-formaldehyde moulding compound) product, or for A5 (melamine formaldehyde moulding compound) product. The whole plant is in a high operation flexibility.
MFMC specification (for immersion purpose) as per Chinese National Standard GB/T 14732-2017
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Item
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Unit
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Index
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Appearance
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/
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Colorless or light yellow transparent liquid
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Density
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g/cm3
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1.00~1.25
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Viscosity
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mPa・s
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15.0~80.0
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PH value
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/
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8.5~10.5
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Solid content
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%
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≥30.0
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Free formaldehyde content
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%
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≤0.3
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EN