Phosphorus nitrogen boron lumber combustion inhibitor

Abstract

The invention relates to a phosphorus-nitrogen-boron wood flame retardant, which is characterized in that the range of each component name and weight percentage of the compositions comprises: 70 to 80 percent of 8-sodium diborate and 18 to 30 percent of one or two of inorganic phosphorus-nitrogen compound and water soluble ammonium polyphosphate, wherein the inorganic phosphorus-nitrogen compound is one or more of ammonium phosphate, diammonium phosphate and monoammonium phosphate. A germicide with the weight percentage of between 0.7 and 3 percent or / and a staining agent with the weight percentage of between 0.7 and 7 percent can be added to the phosphorus-nitrogen-boron wood flame retardant, wherein the germicide is one or more of chlorothalonil, sanmate and tebuconazol; and the staining agent is one or more of malachite green, alkali red, alkali blue, alkali yellow and alkali black. The phosphorus-nitrogen-boron wood flame retardant can be dissolved in water and the concentration of the wood flame retardant is less than or equal to 20 percent. Wood subjected to treatment through the phosphorus-nitrogen-boron wood flame retardant has the effects of good flame retardant effect, small hygroscopicity, corrosion resistance, insect prevention, mildew prevention, more color change and so on. The phosphorus-nitrogen-boron wood flame retardant has the advantages of low toxicity, no chlorine and lower cost.

Description

technical field [0001] The invention relates to the flame-retardant protection technology of wood, in particular to a fire retardant for wood materials such as wood, fiber board, particle board and plywood. Background technique [0002] Considering factors such as production safety and building fire prevention, many foreign countries attach great importance to the flame resistance of related materials and have formulated many specifications. Now our country also attaches great importance to this. Wood is an organic compound composed of elements such as carbon, hydrogen and oxygen. It will decompose when heated and is flammable. Therefore, fire-retardant treatment of wood has been highly valued by people, and many countries have formulated laws and regulations that must be treated with fire-retardant materials for high-rise buildings and ships. There is a long history of research on wood flame retardants at home and abroad. Vacuum pressure treatment is currently the most su...

AI Technical Summary

Problems solved by technology

[0014] Hygroscopicity is an important factor affecting the use of wood flame retardants. Too high hygroscopicity of wood after flame retardant treatment can easily cause cracking, deformation, mildew, rot, paint peeling, and poor finish of wood and its wood products.

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