Synergistic nitrogen phosphorus expansion flame retardant

Synergistic nitrogen phosphorus expansion flame retardant

The synergistic effect is that the combined effect of two or more auxiliaries is greater than the sum of single component effects. Because the nitrogen and phosphorus flame retardant agent are added to increase will lead to a drop in material mechanics performance, so in the mixed adding the right amount of nitrogen and phosphorus expansion type flame retardant into charcoal association effect agent would help keep adding in the low volume of composite material excellent flame retardant performance. Synergistic agents including molecular sieves, nanomaterials, nylon -6 and metal compounds are commonly used in synergistic nitrogen phosphors.

Cooperative type nitrogen and phosphorus in the nitrogen and phosphorus flame retardant expansion expansion type flame retardant molecular sieve (agent, molecular sieve is a kind of SiO2 and AlO4 tetrahedron through oxygen bridge connection of crystalline silicon aluminate, ideal formula for Mx/n [(AlO2), x (SiO2), y] zH2O, they not only have uniform pore structure, large specific surface area, and the surface polarity is very high, these properties determine the molecular sieve, not only has good adsorption and catalytic activity.

Nanomaterials coagent. Application (ammonium polyphosphate) -per-mel fire retardant coating has good fire resistance, but it has some problems such as large amount of addition, poor compatibility with matrix, moisture absorption and resistance to flame retardant materials. When used in the environment of direct contact with water or in humid environment, it is easy to produce water soluble and salt dissolving, so that the coating loses fireproof potency. The study shows that nano-chemical can reduce the amount of adding, and can improve the mechanical properties, waterproofing performance and fire resistance of the material.

PA6 coals. PA6 (polyamide) has a higher impact strength and tensile strength, and the PP composite materials can improve the mechanical properties of PP, and the APP can increase carbon rate for PA6 and PA6 have synergistic flame retardant effect. Zhi-ling ma substitute PA6 part such as PER carbon agent, an expansion type flame retardant PP, research has shown that the addition of PA6 increased the nitrogen and phosphorus expansion type flame retardant agent and apparent viscosity of PP system, mechanical properties and thermal stability.



Trimethyl phosphate (TMP)

Packing: NW 200KG / galvanized iron (a small cabinet loaded 16 tons a child care), 1000KG/IB barrels (a small cabinet loaded 18 tons), or 23 tons ISOTANK.

The product output: 80 tons / month
      
Shipping Port: China Shang Hai
                                   
Price offer is valid: 15 days

Jincang time: 15 days (commodity inspection)

Export rights: the right to import and export company.

Trimethyl phosphate (TMP) use is mainly used in medicine, pesticides, solvents and extractants, used as a solvent, extraction, determination of zirconium and GC stationary liquid, the ester is used in medicine and pesticide solvent and extractant. Pesticide intermediates. In Japan, Trimethyl phosphate use as anti stain of textile oil and polymer, flame retardant additive for lithium ion battery.

Trimethyl phosphate is currently the main market in India, mostly for textile auxiliaries, the products are mainly exported to Japan, South Korea, Thailand, India.

As of Trimethyl phosphate use need to do not understand, please contact us!


PA6 was 3%, the dosage of nitrogen and phosphorus expansion type flame retardant PP tensile strength increased by 24.2%, improves the decomposition temperature 18 ℃, flame retardant performance remains the same, has a good processing performance, the cellulose itself has a good into carbon performance, thermal analysis showed that the flame retardant fiber surface by nitrogen and phosphorus expansion type flame retardant, at 500 ℃ carbon rate is higher, can effectively resist high temperature thermal oxidation. The flame retardant mechanism of nitrogen and phosphorus expansive flame retardant is due to the catalytic action of phosphoric acid or Lewis acid, which causes the material to be decomposed into carbon at high temperature.

Metal salt and metal compound coagent. In nitrogen and phosphorus expansion type flame retardant system, combustion and flame retardant after dehydration, oxidation and degradation, carbonization process, thermal analysis, the study found, after adding the right amount of metal oxide material degradation activation energy and frequency factor are increased, the material of the hot oxygen degradation speed. And excess metal compounds will deteriorate materials of the flame retardant performance, some metal compounds may even catalytic decomposition of flame retardant material, common metal salt and metal compounds association effect agent Fe2O3, MnO2, ZnO2, TiO2, Bi2O3, MgSnO3, Cr2O3, La2O3, etc.

The synergistic agent of silicon compounds in the synergistic nitrogen and phosphorus expansion flame retardant. The traditional nitrogen and phosphorus expansive flame retardant has the disadvantage of poor compactness of the expansion carbon layer, thus affecting the flame retardant effect. Studies have reported by silicon compounds in nitrogen and phosphorus in the expansion type flame retardant association effect can improve the flame retardant performance, the common compounds containing silicon association effect are as siloxane, silica, silica gel, silicone, silicon, etc.

Lv Yangong, APP and PER the preparation of mixed nitrogen and phosphorus expansion type flame retardant flame retardant PP, studied different silicon-based materials - silica gel (SG), silicone (GM) and silicon (SW) fiber for nitrogen and phosphorus expansion type flame retardant flame retardant PP performance impact, and through the LOI and UL - 94, TGA on flame retardant properties have been characterized.

The results showed that there was a certain synergistic effect between the three substances and the nitrogen and phosphorus expansive flame retardants. Among them, the SG of nitrogen and phosphorus expansion type flame retardant synergistic effect is best, in the content of nitrogen and phosphorus expansion type flame retardant was 25%, adding 2% of SG, material the LOI from 29 to 35, also raise to UL - 94 V - level 0, materials of high temperature thermal stability has been greatly improved, and the ability to generate carbon layer structure more compact.

In addition, montmorillonite and some sulfur compounds have a synergetic effect on nitrogen and phosphorus expansion flame retardants.

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