THE ROLE OF PENTAERYTHRITOL IN INTUMESCENT PAINT

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THE ROLE OF PENTAERYTHRITOL IN INTUMESCENT PAINT

Pentaerythritol is an organic compound with the formula C(CH₂OH)₄.

THE ROLE OF PENTAERYTHRITOL IN INTUMESCENT PAINT

1. Definition

Pentaerythritol is an organic compound with the formula C(CH₂OH)₄. Classified as a polyol, it is a white solid. Pentaerythritol is a raw material for the synthesis and manufacture of explosives, plastics, paints, appliances, cosmetics, and many other commercial products.

The word pentaerythritol is a compound word of Penta related to the number of carbon atoms and erythritol has 4 alcohol groups.

2. Basic knowledge background

Pentaerythritol was first reported in 1891 by the German chemist Bernhard Tollens and his student P. Wigand. The pentaerythritol synthesis equation is shown in Photo 1.

Photo 1: Pentaerythritol synthesis reaction

3. The role and mechanism of action in flame retardant paint

Pentaerythritol is used in flame retardant coatings as a charring agent. When ammonium polyphosphate is decomposed into polyphosphoric acid (HPO₃)_n and NH₃ at a temperature greater than 250^oC. The polyphosphoric acid then reacts with Pentaerythritol and then dehydrates to form a thick layer of coal that protects the substrate (Figure 2).

Photo 2: The reaction of Pentaerythritol in flame and intumescent retardant coatings

Above is some basic knowledge about "THE ROLE OF PENTAERYTHRITOL IN INTUMESCENT PAINT". Hope to provide useful information to you on the use of Pentaerythritol additive in flame retardant paint.

For further details, please contact Mega Vietnam New Materials Research and Development Center to have the best answers and solutions.

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THE ROLE OF PENTAERYTHRITOL IN INTUMESCENT PAINT

1. Definition

2. Basic knowledge background

3. The role and mechanism of action in flame retardant paint

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