Halogen-free environmentally friendly fire retardant with good wood fire retardation performance

Abstract

The invention discloses a halogen-free environmentally friendly fire retardant with good wood fire retardation performance. The halogen-free environmentally friendly fire retardant comprises, by mass, 20-50% of ammonium polyphosphate, 10-25% of boric acid, 5-20% of bisphenol A-bis(diphenylphosphate) oligopolymer, 2-15% of nanometer zinc borate, 3-8% of sodium molybdate, 2-6% of sodium dodecyl sulfonate and 0.1-1% of pentaerythritol. Compared with present fire retardants, the halogen-free environmentally friendly fire retardant prepared through the steps of adding nanometer zinc borate and sodium molybdate to main flame retardation raw materials comprising ammonium polyphosphate, boric acid and bisphenol A-bis(diphenylphosphate) oligopolymer as smoke inhibitors, adding sodium dodecyl sulfonate as a surfactant and pentaerythritol as a charring agent has the advantages of very good fire retardation and smoke inhibition performances, no halogen, environmental protection, good corrosion and moth resistance, safe and convenient use, and simple preparation method.

Description

technical field [0001] The invention relates to the technical field of flame retardants, in particular to a halogen-free and environment-friendly flame retardant with good flame retardant performance for wood. Background technique [0002] Wood is extremely flammable, and it is easy to cause a fire and cause damage to people and property. In order to reduce the risk of fire, the necessary fire-retardant treatment should be carried out on the wood. Among the flame retardants used, halogen flame retardants will produce a large amount of harmful gases when burned, which will have adverse effects on the human body and the environment, and have been gradually eliminated and banned; metal hydroxides such as aluminum hydroxide and magnesium hydroxide Flame retardants have not been widely used due to the large amount of addition and poor compatibility with organic substances; resin-based flame retardants are being processed due to problems such as unsatisfactory flame retardant per...

AI Technical Summary

Problems solved by technology

Among the flame retardants used, halogen flame retardants will produce a large amount of harmful gases when burned, which will have adverse effects on the human body and the environment, and have been gradually eliminated and banned; metal hydroxides such as aluminum hydroxide and magnesium hydroxide Flame retardants have not been widely used due to the large amount of addition and poor compatibility with organic substances; resin-based flame retardants are being processed due to problems such as unsatisfactory flame retardant performance, difficulty in impregnation, and darkening of the treated material. Timber is restricted