CN104647541A

CN104647541A - Phosphorus-nitrogen-boron compounded system-containing timber fire retardant

Info

Publication number: CN104647541A
Application number: CN201310592840.7A
Authority: CN
Inventors: 不公告发明人
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-11-22
Filing date: 2013-11-22
Publication date: 2015-05-27

Abstract

The invention discloses a phosphorus-nitrogen-boron compounded system-containing timber fire retardant. The phosphorus-nitrogen-boron compounded system-containing timber fire retardant comprises, by mass, 20-40% of phosphoric acid, 15-20% of dicyandiamide, 5-15% of a boron compound, 5-20% of triphenyl phosphate, 5-15% of aluminum sulfate, 5-10% of ammonium molybdate, 0.5-3% of triethanolamine and 0.1-1% of pentaerythritol. Phosphoric acid and dicyandiamide undergo an in situ reaction to produce carbamido phosphate, the carbamido phosphate is mixed with a boron compound, triphenyl phosphate and aluminum sulfate, and the mixture is added with ammonium molybdate as a smoke inhibition synergist, triethanolamine as a surfactant and pentaerythritol as a charring synergist so that the phosphorus-nitrogen-boron compounded system-containing timber fire retardant is obtained. The fire retardant has good fire retardant and smoke inhibiting effects, low hygroscopicity, good size stability and use convenience, does not contain halogen, satisfies environmental protection requirements and has anticorrosion and anti-moth functions.

Description

A kind of wood fire retardant of phosphorus-nitrogen containing boron compound system

Technical field

The present invention relates to wood fire retardant technical field, specifically a kind of wood fire retardant of phosphorus-nitrogen containing boron compound system.

Background technology

Timber very easily burns, and is easy to cause fire and cause damage to the person, property.In order to reduce disaster hidden-trouble, reply timber carries out necessary flame treatment.Existing wood fire retardant used can be divided into the flame retardant agent of phosphorus flame retardant, halogen flame, boron flame retardant, metal hydroxide combustion inhibitor and various element by effective ignition-proof element, and in these fire retardants, halogen flame can produce a large amount of pernicious gas because of during burning, all can produce harmful effect to human body and environment, be eliminated gradually at present and forbid; The metal hydroxide combustion inhibitor such as aluminium hydroxide and magnesium hydroxide is poor and fail to widely use because addition is large, with the compatibility of organic substance; Due to advantages such as phosphorus nitrogen boron multiple elements design system are soluble in water, flame-proof smoke-suppressing is good, what be thus applicable to wood fire retardant at present is all phosphorus nitrogen boron flame retardant mostly.

Summary of the invention

The object of this invention is to provide the wood fire retardant of a kind of flame-retardant smoke inhibition excellent effect, hygroscopicity phosphorus-nitrogen containing boron compound system low and easy to use.

The technical solution adopted for the present invention to solve the technical problems is: a kind of wood fire retardant of phosphorus-nitrogen containing boron compound system, and its component by mass percent proportioning is: phosphoric acid 20% ~ 40%, dicyandiamide 15% ~ 20%, boron compound 5% ~ 15%, triphenyl phosphate 5% ~ 20%, aluminum sulfate 5% ~ 15%, ammonium molybdate 5% ~ 10%, triethanolamine 0.5% ~ 3%, pentaerythrite 0.1% ~ 1%.

The mass percent concentration of described phosphoric acid is 75% ~ 85%.

Described boron compound is one or more mixtures in boric acid, borax, sodium tetraborate, eight boric acid disodiums, hydration zinc borate.

The preparation method of the wood fire retardant of a kind of phosphorus-nitrogen containing boron compound system of the present invention, comprises the following steps:

(1), each component is taken by mass percent proportioning;

(2), by phosphoric acid and dicyandiamide mixing, react 0.5 ~ 2 hour at 90 DEG C ~ 130 DEG C temperature, until complete reaction with after being converted into carbamidophosphoric acid salt, be cooled to room temperature, add boron compound, triphenyl phosphate, aluminum sulfate, ammonium molybdate, triethanolamine and pentaerythrite, and mix, then after carrying out drying, pulverize and sieve, obtain the present invention.

The invention has the beneficial effects as follows, compared with prior art, the present invention adopts phosphoric acid and dicyandiamide reaction in-situ to obtain carbamidophosphoric acid salt, again with boron compound, triphenyl phosphate and aluminum sulfate mixing, and add ammonium molybdate as pressing down cigarette synergist, triethanolamine is surfactant, pentaerythrite is for becoming charcoal synergist, and then obtain a kind of wood fire retardant of phosphorus-nitrogen containing boron compound system, it is effective that this fire retardant has flame-retardant smoke inhibition, hygroscopicity is low, dimensional stability and the advantage such as easy to use, and not halogen-containing composition, meet halogen-free environmental requirement, and have anticorrosion, mothproof function, its preparation technology is simple, does not produce pollutant in production with in using.

Detailed description of the invention

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

A wood fire retardant for phosphorus-nitrogen containing boron compound system, its component by mass percent proportioning is: phosphoric acid 33%, dicyandiamide 15%, boric acid 15%, triphenyl phosphate 15%, aluminum sulfate 10%, ammonium molybdate 8%, triethanolamine 3%, pentaerythrite 1%.Wherein, the mass percent concentration of described phosphoric acid is 75% ~ 85%.

Its preparation method is: (1), take each component by mass percent proportioning; (2), by phosphoric acid and dicyandiamide mixing, react 0.5 ~ 2 hour at 90 DEG C ~ 130 DEG C temperature, until complete reaction with after being converted into carbamidophosphoric acid salt, be cooled to room temperature, add boron compound, triphenyl phosphate, aluminum sulfate, ammonium molybdate, triethanolamine and pentaerythrite, and mix, then after carrying out drying, pulverize and sieve, obtain the present invention.

Claims

1. the wood fire retardant of a phosphorus-nitrogen containing boron compound system, it is characterized in that, its component by mass percent proportioning is: phosphoric acid 20% ~ 40%, dicyandiamide 15% ~ 20%, boron compound 5% ~ 15%, triphenyl phosphate 5% ~ 20%, aluminum sulfate 5% ~ 15%, ammonium molybdate 5% ~ 10%, triethanolamine 0.5% ~ 3%, pentaerythrite 0.1% ~ 1%.

2. the wood fire retardant of a kind of phosphorus-nitrogen containing boron compound system according to claim 1, is characterized in that, the mass percent concentration of described phosphoric acid is 75% ~ 85%.

3. the wood fire retardant of a kind of phosphorus-nitrogen containing boron compound system according to claim 1, is characterized in that, described boron compound is one or more mixtures in boric acid, borax, sodium tetraborate, eight boric acid disodiums, hydration zinc borate.

4. the preparation method of the wood fire retardant of a kind of phosphorus-nitrogen containing boron compound system according to claim 1, is characterized in that, comprise the following steps:

(1), each component is taken by mass percent proportioning;