Appearance: Transparent liquid
Tin content: 18.3%
Acid number: 176
Freezing point: 18℃
Boiling point: >200℃@ 10
Partial vapor pressure: 150u@ 160 ℃
Flash point: 235℃(COC)
Specific gravity(25℃): 1.05
Refractive index: 1.4686
Decomposition temperature: >150℃
It can be seen from the experimental results that if the amount of composite flame retardant added is too small, although the physical and chemical properties of the coating are good, the fire and heat insulation effect is poor. During the combustion test, the substrate will quickly be carbonized; and if the composite flame retardant Excessive addition of people will not only affect the fireproof performance of the coating, but also the physical and chemical properties are not ideal. When the added amount of composite flame retardant is near a certain proportion, the fire retardant coating has both good physical and chemical properties and good fire resistance.
We believe that this is the difference between the composite flame retardant and the other components of the coating. The best ratio. That is to say, near this value, the composite flame retardant ptfe modified pe wax manufacturers and other components achieve the best synergy to form a complete and organic fire protection system. The excellent physical and chemical properties and fire resistance of the fire retardant coating are the best. The embodiment of synergy. Listed in Table 2327 are three fire-retardant coatings made of composite flame retardants, which have stable physical and chemical properties, and their fire-retardant performance is at the leading level of similar products in China. They have achieved significant social and economic benefits through popularization and application.
Application examples in solvent-based fire-retardant coatings
Application examples of flame retardants in solvent-based intumescent fireproof coatings.
It can be seen from the formula and performance data that some inorganic flame-retardant additives should be added to the solvent-based intumescent fire-retardant coating. Inorganic flame-retardant additives are added to the fire-retardant coating to increase the solid content and reduce its cost, so that the expansion and foaming layer of the fire-retardant coating is very dense, and they will not decompose into gaseous compounds and lose it when exposed to fire or even under continuous flame action. , With their stability to maintain effective skeleton components, and long-term high-efficiency heat insulation, the fire-resistant coating heat insulation layer is durable and resistant to burning, thereby improving the fire-resistant performance of the fire-resistant coating, and also improving the mechanical properties and leveling of the coating Performance, but also increase the thickness of the coating film. Commonly used inorganic flame retardant additives in intumescent fire retardant coatings are silica, talc, calcium carbonate, barium sulfate and so on.
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