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Melamine tableware description
04 Apr 2020
Melamine tableware description

Melamine tableware belongs to high molecular polymer, the English abbreviation is MF, and its monomers are formaldehyde and melamine. A 37% aqueous formaldehyde solution was used for the reaction, and the molar ratio of formaldehyde and melamine monomers was 2 ~ 3. Studies have shown that with the increase in the amount of formaldehyde, the combined amount of formaldehyde also increases, and the reaction is easy to proceed; by changing the amount of formaldehyde, melamine resins obtained from different methylolmelamine can be prepared. When the pH of the reaction system is 8.5, side reactions Less, the reaction is easy to control; high temperature, fast reaction speed, in the range of 54 ~ 80 ℃ has little effect on the amount of formaldehyde binding.


In the first step of the reaction, different numbers of N-methylol substituents are generated, and then further condensed into linear resins. Generally speaking, the reaction conditions are different, and the molecular weight of the product is also different, from water soluble to insoluble in water, and even insoluble and infusible solids can be formed. Melamine resin does not cure at room temperature, and generally needs to be thermally cured at 130 to 150 ° C. Studies have shown that adding a small amount of acid as a catalyst during curing can increase the curing rate. The cured melamine formaldehyde resin is colorless and transparent, stable in boiling water, and can even be used at a high temperature of 150 ℃. It has self-extinguishing, arc resistance and good mechanical properties.
Melamine Crockery Molding Machine

Melamine powder is made of melamine formaldehyde resin as raw material, cellulose as a base material, and pigments and other additives. It is a thermosetting raw material because it has a three-dimensional network structure. (The waste side cannot be returned to the furnace for production). Melamine powder scientific name melamine formaldehyde resin, simply "MF" ...


A1 material (not for tableware)
(Contains 30% melamine resin, and another 70% ingredients are additives, starches, etc.)

Features: Although it has melamine components, it still has the characteristics of plastic, high toxicity, high temperature resistance, dirty resistance, corrosion resistance, rough appearance, easy deformation, discoloration, and poor gloss.


A3 material (not for tableware)
Contains 70% melamine resin, and another 30% ingredients are additives, starches, etc.

Features: The appearance is almost the same as the genuine product (A5 material), but once used, the product is not resistant to dirt, easy to change color and fade, easy to deform at high temperature, and not resistant to corrosion.


A5 material can be used for melamine tableware
(100% melamine resin)

Features: non-toxic and odorless, temperature resistance -30 degrees Celsius to 120 degrees Celsius, bump resistance, corrosion resistance, not only beautiful appearance, light insulation, safe use.


A8 material characteristics of jade porcelain tableware

The raw material of tableware is Tianyuan jade porcelain powder, and its characteristics are as follows:


1. Melamine formaldehyde molding powder is odorless, tasteless and non-toxic.


2. The surface of melamine formaldehyde plastic has high hardness, luster and scratch resistance.


3. It is self-extinguishing, fireproof, impact resistant and crack resistant.


4. High temperature, high humidity stability, good solvent resistance, and good alkali resistance.

We are the manufacture of Melamine Crockery Molding Machine in China,if you need any Melamine Crockery Molding Machine ,please let me know.

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