CERAFAK 103 Wax Dispersion for Coatings

Based on EAA copolymer for solvent-borne effect coating systems, especially for automotive coatings. Improves the orientation of effect pigments and prevents settling in the can.

Composition: Ethylene acrylic acid copolymer wax dispersion (EAA)
Typical Properties: The values shown in this data sheet describe typical properties and do not constitute technical specifications of the product.
Non-volatile substances: 6%
Carrier: xylene/butyl acetate/n-butanol 7/8/1
Melting point (wax content): 110°C
Particle size (Hegeman): 15 microns
Viscosity(23℃): 10 mPa-sec

Phosphorus-containing inorganic flame retardants are widely used because of their good thermal stability, non-volatile, no corrosive gas, long-lasting effect, and low toxicity. The flame retardant effects of various phosphorus-containing inorganic flame retardants are roughly the same. When heated, they decompose to form phosphoric acid and metaphosphoric acid, and at the same time release incombustible gases such as water and ammonia. It is a strong dehydrating agent on the surface of the material, which can dehydrate polymers (or carbonizing agents, fibers, resins, etc.) to form a carbon film, which plays a role of heat insulation and flame retardant. Phosphorus-containing inorganic flame retardants are often used in combination with other flame retardants to obtain The better performance, the phosphorus-nitrogen system formed by nitrogen-containing compounds has obvious synergistic effect, which enhances the flame retardant effect, and the phosphorus-halogen system can also produce synergistic effects. Phosphides are used with nitrogen-containing compounds, such as guanidine, synthetic paraffin, guanidine, dicyandiamide, etc., and have a significant synergistic effect. Due to the incorporation of nitrides, in addition to enhancing the flame retardant effect of phosphides, it can also make phosphorus The compound is more firmly bonded to the polymer fabric, so when it is used as a flame-retardant treatment of textiles, it also enhances the fabric’s washing resistance and obtains a washing-resistant flame-retardant fabric.

The synergistic effect of nitrogen on phosphorus depends on the polymer structure used and the phosphorus content. For polyhydroxy compounds such as cellulose, the main role of nitride is to catalyze the decomposition of phosphorus into phosphoric acid and thermally polymerize it into polyphosphoric acid. In turn, polyphosphoric acid makes cellulose more effectively phosphorylated and dehydrated. An outstanding advantage of the phosphorus-nitrogen flame retardant system is the low toxicity of the gases it releases. At the same time, it also exhibits the char-forming mechanism in the presence of polyhydroxylated char-forming substances, so it has played an important role in the rapid development and application of intumescent fire retardant coatings in the past few decades.

The phosphorus-halogen system has a synergistic effect. When these two elements coexist, phosphorus halides and phosphorus oxyhalides can be formed. On the one hand, they are strong inhibitors of flame chain growth free radicals. On the other hand, due to their high density, they stay in the combustion zone for a long time and can play a better role in sun burning. In recent years, fruitful studies on the phosphorus-bromide system have shown that the synergistic application of phosphorus and bromine, especially when P and Br are in the same molecular structure, the synergistic effect is particularly obvious.