CN104647544A - Low-cost and high-efficiency and composite wood fire retardant and preparation method thereof - Google Patents

Abstract

The invention discloses a low-cost and high-efficiency and composite wood fire retardant and a preparation method thereof. The low-cost and high-efficiency and composite wood fire retardant consists of the components in percentage by weight: 35-50 percent of phosphoric acid, 10-20 percent of dicyandiamide, 10-20 percent of melamine, 5-15 percent of sodium tetraborate, 10-25 percent of ammonium polyphosphate, 0.5-5 percent of diethanol amine and 1-5 percent of ammonium molybdate. The low-cost and high-efficiency and composite wood fire retardant has the beneficial effects that compared with the prior art, the low-cost and high-efficiency and composite wood fire retardant has the advantages of low cost, good fire retardant and smoke suppression effect, low moisture absorption property, halogen-free environment friendliness, low wood mechanical loss rate and the like and is easily dissolved into water and is convenient to use.

Description

A kind of low-cost high-efficiency composite wood fire retardant and preparation method thereof

Technical field

The present invention relates to wood fire retardant technical field, specifically a kind of low-cost high-efficiency composite wood fire retardant and preparation method thereof.

Background technology

Timber is easy to processing, high, the good decorative property of the ratio of strength to weight, the series of advantages such as renewable, cheap owing to having, and is thus widely used in the fields such as Furniture manufacture, interior decoration, building, but the easy ignition of timber, bring larger disaster hidden-trouble.Therefore, timber uses and goes to toward needing to carry out flame treatment with fire retardant to it, to reduce disaster hidden-trouble.Wood fire retardant is a kind of chemical agent that can improve or strengthen timber resisting combustibility, and it is of a great variety, and treatment effect is each different.Along with the development and progression of society, more and more higher requirement is proposed to wood fire retardant, low cost, efficient, environmental protection and be easy to use and become the focus that various circles of society give research and apply.

Summary of the invention

The object of the present invention is to provide a kind of low-cost high-efficiency composite wood fire retardant and preparation method thereof.

The technical solution adopted for the present invention to solve the technical problems is: a kind of low-cost high-efficiency composite wood fire retardant, and its component by mass percent proportioning is: phosphoric acid 35% ~ 50%, dicyandiamide 10% ~ 20%, melamine 10% ~ 20%, sodium tetraborate 5% ~ 15%, APP 10% ~ 25%, diethanol amine 0.5% ~ 5%, ammonium molybdate 1% ~ 5%.

The mass concentration of described phosphoric acid is 70% ~ 85%.

The preparation method of a kind of low-cost high-efficiency composite wood fire retardant of the present invention, comprises the following steps:

(1), by mass percent proportioning take each component, and phosphoric acid is divided into two equal portions, respectively account for 50%;

(2), dicyandiamide is added demineralized water and be made into 40 ~ 70wt% aqueous solution, and be heated to 60 DEG C ~ 70 DEG C dicyandiamide is dissolved, then the phosphoric acid that step (1) a copy of it accounts for 50% is added, react 0.5 ~ 2 hour at 80 DEG C ~ 90 DEG C temperature, again through cooling, filtration, crystallization, oven dry, pulverizing, obtain material A;

(3) phosphoric acid, another part of step (1) being accounted for 50% adds demineralized water and is mixed with 50 ~ 60wt%, and be heated to 120 DEG C ~ 140 DEG C, under agitation add melamine, react 0.5 ~ 2 hour at 100 DEG C ~ 220 DEG C temperature, then room temperature is cooled to, by product successively with water and ethanol washing to filtrate in neutral, more after filtration, dry, pulverize, obtain material B;

(4), the material A of step (2), the material B of step (3), sodium tetraborate, APP, diethanol amine, ammonium molybdate are added in blender together stir 10 ~ 30 minutes, after making fully to mix, drying, pulverize, sieve, obtain a kind of low-cost high-efficiency composite wood fire retardant of the present invention.

The invention has the beneficial effects as follows, compared with prior art, the present invention have with low cost, flame-retardant smoke inhibition is effective, hygroscopicity is low, halogen-free environmental and to advantages such as timber mechanics loss late are little, and soluble in water, easy to use.

Detailed description of the invention

Technical scheme of the present invention is further illustrated below in conjunction with concrete preferred embodiment.

A kind of low-cost high-efficiency composite wood fire retardant, its component by mass percent proportioning is: phosphatase 24 0%, dicyandiamide 15%, melamine 15%, sodium tetraborate 15%, APP 10%, diethanol amine 2%, ammonium molybdate 3%.Wherein, the mass concentration of described phosphoric acid is 70% ~ 85%.

Its preparation method is: (1), take each component by mass percent proportioning, and phosphoric acid is divided into two equal portions, respectively accounts for 50%; (2), dicyandiamide is added demineralized water and be made into 40 ~ 70wt% aqueous solution, and be heated to 60 DEG C ~ 70 DEG C dicyandiamide is dissolved, then the phosphoric acid that step (1) a copy of it accounts for 50% is added, react 0.5 ~ 2 hour at 80 DEG C ~ 90 DEG C temperature, again through cooling, filtration, crystallization, oven dry, pulverizing, obtain material A; (3) phosphoric acid, another part of step (1) being accounted for 50% adds demineralized water and is mixed with 50 ~ 60wt%, and be heated to 120 DEG C ~ 140 DEG C, under agitation add melamine, react 0.5 ~ 2 hour at 100 DEG C ~ 220 DEG C temperature, then room temperature is cooled to, by product successively with water and ethanol washing to filtrate in neutral, more after filtration, dry, pulverize, obtain material B; (4), the material A of step (2), the material B of step (3), sodium tetraborate, APP, diethanol amine, ammonium molybdate are added in blender together stir 10 ~ 30 minutes, after making fully to mix, drying, pulverize, sieve, obtain a kind of low-cost high-efficiency composite wood fire retardant of the present invention.

Claims (3)

1. a low-cost high-efficiency composite wood fire retardant, it is characterized in that, its component by mass percent proportioning is: phosphoric acid 35% ~ 50%, dicyandiamide 10% ~ 20%, melamine 10% ~ 20%, sodium tetraborate 5% ~ 15%, APP 10% ~ 25%, diethanol amine 0.5% ~ 5%, ammonium molybdate 1% ~ 5%.

2. a kind of low-cost high-efficiency composite wood fire retardant according to claim 1, is characterized in that, the mass concentration of described phosphoric acid is 70% ~ 85%.

3. the preparation method of a kind of low-cost high-efficiency composite wood fire retardant according to claim 1, is characterized in that, comprise the following steps:

(1), by mass percent proportioning take each component, and phosphoric acid is divided into two equal portions, respectively account for 50%;

(2), dicyandiamide is added demineralized water and be made into 40 ~ 70wt% aqueous solution, and be heated to 60 DEG C ~ 70 DEG C dicyandiamide is dissolved, then the phosphoric acid that step (1) a copy of it accounts for 50% is added, react 0.5 ~ 2 hour at 80 DEG C ~ 90 DEG C temperature, again through cooling, filtration, crystallization, oven dry, pulverizing, obtain material A;

(3) phosphoric acid, another part of step (1) being accounted for 50% adds demineralized water and is mixed with 50 ~ 60wt%, and be heated to 120 DEG C ~ 140 DEG C, under agitation add melamine, react 0.5 ~ 2 hour at 100 DEG C ~ 220 DEG C temperature, then room temperature is cooled to, by product successively with water and ethanol washing to filtrate in neutral, more after filtration, dry, pulverize, obtain material B;

(4), the material A of step (2), the material B of step (3), sodium tetraborate, APP, diethanol amine, ammonium molybdate are added in blender together stir 10 ~ 30 minutes, after making fully to mix, drying, pulverize, sieve, obtain a kind of low-cost high-efficiency composite wood fire retardant of the present invention.