Preparation method of metal boron ammonium phosphate flame retardant smoke suppressant

Abstract

The invention relates to the technical field of flame retardant smoke suppressant and a preparation method thereof, and particularly discloses a preparation method of metal boron ammonium phosphate flame retardant smoke suppressant. The preparation method comprises the following steps: step I, preparing raw materials: weighing various raw material components in parts by weight: 3 to 7 parts of boron source, 8.719 parts of metal source, 20.404 parts of ammonium source, and 10 parts of deionized water; step II, reacting: adding the weighed chemicals into a stainless steel reaction kettle with apolytetrafluoroethylene liner, and then adding the weighed deionized water into the reaction kettle; step III, cooling at room temperature: placing the reaction kettle in a drying oven, setting the temperature of the drying oven at 100 to 220 DEG C, reacting for 1 to 5 days at a constant temperature, and cooling at the room temperature; and step IV, washing, suction filtering and drying: repeatedly washing by using the deionized water, removing the unreacted excessive boric acid, suction filtering, and drying, thus obtaining the metal boron ammonium phosphate flame retardant smoke suppressant.By adopting the flame retardant smoke suppressant, the weaknesses of the prior art are overcome, the obtained product is high in purity and good in dispersity, no acid and alkali waste solution is discharged in the reaction process, and the energy consumption is small.

Description

technical field [0001] The invention relates to the technical field of flame retardant and smoke suppressant and its preparation, in particular to a preparation method of metal borophosphate ammonium salt flame retardant and smoke suppressant. Background technique [0002] Wood-plastic composite material is a kind of wood fiber material (WF) in the form of fiber and powder as filling or reinforcing material, with thermoplastic as matrix material, adding various additives through extrusion, hot pressing, molding or injection molding, etc. A new type of composite material made by combining various processing methods. Commonly used thermoplastic substrates include polyethylene (PE), polypropylene (PP), polystyrene (PS) and polyvinyl chloride (PVC). [0003] Wood-plastic composite materials without fire-resistant and flame-retardant treatment are easy to burn, and have a large calorific value of combustion. At the same time, wood-plastic composite materials using PS and PVC pla...

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Problems solved by technology

[0005] The object of the present invention is to provide a method for preparing a metal borophosphate ammonium flame retardant and smoke suppressant, which overcomes the deficiencies in the prior art, and based on the large amount of flame retardant described in the existing flame retardant wood-plastic composite material technology, Seriously affect the mechanical properties of wood-plastic materials, low flame retardant and smoke suppression efficiency, and provide a special flame retardant and smoke suppressant for wood-plastic materials - metal borophosphate ammonium salt flame retardant and smoke suppressant, and a metal boron The preparation method of ammonium phosphate flame retardant and smoke suppressant is based on the classic hydrothermal synthesis method, combined with the characteristics of easy introduction of boron atoms by the emerging boric acid melting method, respectively in excess boron source (boric acid), metal source (metal oxide, Metal halides, metal oxo acid salts, including metal sulfates, metal acetates, metal halides), ammonium sources ((NH4)2HPO4) and a certain amount of deionized water are generated at a certain temperature and reaction time of