How to apply the catalyst TMG Tinfilter

2021-11-24   Pageview:70

TMG Tinfilter avoids the disadvantages of the hydrolysis method of tin removal and only adds TMG Tinfilter to the normal production process, which helps to reduce the additional production time and reaction costs associated with hydrolysis treatment. color and appearance of the final product.

 

 

 

 

 

 

 

 

 

 

 

Its flame retardant effect is better than using it alone. Commonly used combined systems such as APP+Mg(OH) 2, APP+AI(OH) a, APP+BaCl, APP+urea, APP+phosphoric acid, APP+formaldehyde decadicyandiamide, APP +Sb zOa etc. When the degree of polymerization of APP is n<20, the water solubility is about 10~30g/100gHzO (20℃), which is the best wood impregnant. Under normal pressure, it can impregnate materials such as masson pine and red pine, and the absorbed dose can reach 25~ At 35kg/m, the oxygen index of the processed material is more than 30. Use suitable dispersibility and emulsifiers to mix aluminum hydroxide and other flame retardants with APP to form a fire retardant liquid, which can treat flammable fiber materials such as wood, wood products, paper, cardboard, and fabrics, and its flame retardant effect is excellent .

Hydrated zinc borate (FB flame retardant) Hydrated zinc borate (FB flame retardant), molecular formula 2ZnO·3BzO; ·3.5HzO, relative molecular mass 434.5, white crystalline powder, melting point 980℃, relative density 2.8, refractive index 1.58, Insoluble in water and general organic solvents, soluble in ammonia water to form complex salts, good thermal stability, starting to lose crystal water above 300℃, fine particle size, average particle size 2-10pm, containing ZnO 37%-40%, Bz Os 45%~49%, H2O 13.5%~15.5%, water temperature of loss of crystallization ≥300℃, particle size (residue on 325 mesh sieve) ≤1%, water content ≤1%, non-toxic, non-polluting inorganic flame retardant Agent.

Zinc borate is mixed with halogen flame retardant RX. When it comes into contact with polyamide wax sds a fire source, gaseous boron halide and zinc halide are generated, and crystal water is released.

2ZnO·3B2O, ·3.5H2O+22RX—-2ZnX+6BXg+11R: O+3.5HO HX produced by simultaneous combustion continues to react with zinc borate to generate boron halide and zinc halide.
2ZnO·3BO, ·3.5H2O+22HX-2ZnX; +6BX, +14.5HgO
The boron halide and zinc halide produced by the above reaction can capture the reactive substances HO· and H· in the gas phase, interfere with the chain reaction that interrupts the combustion, and promote the formation of a dense and strong carbonized layer in the solid phase. At the same time, boride forms a glass-like solid melt on the surface of combustibles at high temperatures, which coats the surface of fiber materials, which can insulate heat and air.

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