CN104708690A - Water-soluble timber flame retardant, preparation method and applications thereof - Google Patents

Water-soluble timber flame retardant, preparation method and applications thereof Download PDF

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Publication number
CN104708690A
CN104708690A CN201310673335.5A CN201310673335A CN104708690A CN 104708690 A CN104708690 A CN 104708690A CN 201310673335 A CN201310673335 A CN 201310673335A CN 104708690 A CN104708690 A CN 104708690A
Authority
CN
China
Prior art keywords
timber
fire retardant
water soluble
flame retardant
fire
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201310673335.5A
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Chinese (zh)
Inventor
不公告发明人
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao Tongchuang Energy Saving Environmental Protection Engineering Co Ltd
Original Assignee
Qingdao Tongchuang Energy Saving Environmental Protection Engineering Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qingdao Tongchuang Energy Saving Environmental Protection Engineering Co Ltd filed Critical Qingdao Tongchuang Energy Saving Environmental Protection Engineering Co Ltd
Priority to CN201310673335.5A priority Critical patent/CN104708690A/en
Publication of CN104708690A publication Critical patent/CN104708690A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27KPROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K3/00Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
    • B27K3/02Processes; Apparatus
    • B27K3/0207Pretreatment of wood before impregnation
    • B27K3/0214Drying
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27KPROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K3/00Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
    • B27K3/02Processes; Apparatus
    • B27K3/08Impregnating by pressure, e.g. vacuum impregnation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27KPROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K3/00Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
    • B27K3/52Impregnating agents containing mixtures of inorganic and organic compounds
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27KPROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K5/00Treating of wood not provided for in groups B27K1/00, B27K3/00
    • B27K5/003Treating of wood not provided for in groups B27K1/00, B27K3/00 by using electromagnetic radiation or mechanical waves
    • B27K5/0055Radio-waves, e.g. microwaves
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27KPROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K2240/00Purpose of the treatment
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27KPROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K2240/00Purpose of the treatment
    • B27K2240/30Fireproofing

Abstract

The invention discloses a composite timber flame retardant, a preparation method and applications thereof. The composite timber flame retardant is composed of the following components in percentage by weight: 20 to 40% of phosphoric acid, 10 to 30% of melamine, 10 to 30% of polyammonium phosphate, 5 to 10% of sodium tetraborate, 2 to 10% of silicon dioxide sol, 2 to 5% of ammonium molybdate, 0.5 to 3% of diethanolamine, and 0.1 to 1% of pentaerythritol. Compared to the prior art, the provided composite timber flame retardant has an excellent comprehensive performance, after a flame retardant treatment, the oxygen index of processed timber can reach 60% or more, the smoke density is 25% or less, moreover the flame retardant and smoke suppression effect is good, the leaching resistant performance is high, the processing technology is simple and can be easily applied to industrial production, moreover, the impregnation depth on timber is large, and the flame retardant performance is stable and lasting.

Description

A kind of water soluble timber fire retardant, preparation method and its usage
Technical field
The present invention relates to wood fire retardant technical field, specifically a kind of water soluble timber fire retardant, preparation method and its usage.
Background technology
At present, wood fire retardant is of a great variety, mainly contains by its effective ignition-proof element: the compound containing phosphorus, nitrogen, boron and halogen or the fire retardant of mixture.Because halogen flame at high temperature will produce pernicious gas, harmful effect is produced to human body and environment, is prohibitted the use gradually at present; Phosphorous, nitrogen, boron element fire retardant is then the main body of current wooden fire retardant.Along with the development and progression of society, people to the requirement of wooden fire retardant from initial only lay particular emphasis on fire-retardant itself, fire-retardant to emphasis, be fuming, the omnibearing combination property such as wood property, environmental characteristics, additional properties and economy, this makes the development and production difficulty of wooden fire retardant new varieties increasing; Secondly, existing wooden fire retardant is adopt the mode process timber soaked to reach flame retardant effect substantially, often there is immersion timber deep inadequate, carrying drug ratio is not high, only have flame retardant effect at wood surface, and after top layer is destroyed, its flame retardant effect will disappear immediately.
Summary of the invention
The object of the present invention is to provide a kind of Halogen, press down cigarette, water soluble timber fire retardant, the preparation method and its usage of efficient and high comprehensive performance.
The technical solution adopted for the present invention to solve the technical problems is: a kind of water soluble timber fire retardant, and its component by mass percent proportioning is: polyphosphoric acid 20% ~ 40%, dicyandiamide 10% ~ 30%, APP 10% ~ 30%, boric acid 5% ~ 10%, borax 5% ~ 10%, Ludox 5% ~ 15%, diethanol amine 0.5% ~ 3%, pentaerythrite 0.1% ~ 1%.
The mass percent concentration of described polyphosphoric acid is 75% ~ 85%.
The content of the silica of described silicon dioxide gel is 20 ~ 40wt%.
The preparation method of a kind of water soluble timber fire retardant of the present invention, comprises the following steps:
(1), each component is taken by mass percent proportioning;
(2), dicyandiamide is added water to be mixed with mass percent concentration be 40% ~ 70% aqueous solution, add phosphoric acid, and react 1 ~ 2 hour under being heated to 80 DEG C ~ 90 DEG C temperature, then cool, again after filtration, crystallization, oven dry, after pulverizing, carbamidophosphoric acid salt GUP fire retardant is obtained;
(3) the carbamidophosphoric acid salt GUP fire retardant, step (2) obtained and APP, boric acid, borax, Ludox, diethanol amine, pentaerythrite are mixed together evenly, discharging, oven dry, pulverize, sieve, obtain a kind of water soluble timber fire retardant of the present invention.
The processing step adopting a kind of water soluble timber fire retardant of the present invention to carry out flame treatment to timber is as follows:
(1), by pending drying of wood process, make its moisture content≤12%, and before flame treatment is carried out to it, give Microwave Pretreatment 10 ~ 30 minutes;
(2), a kind of water soluble timber fire retardant of the present invention is added water to be mixed with mass concentration be 15% ~ 20% fire resistant fluid;
(3), step (1) drying, pretreated timber are loaded in high-pressure impregnation tank, after building lid, by high-pressure impregnation tank suction to 0.06MPa ~ 0.09MPa, keep 30 ~ 60 minutes, then in high-pressure impregnation tank, fill the fire resistant fluid of step (2), removal vacuum, slowly be forced into 1.2 ~ 1.4MPa, and keep 2 ~ 4 hours, release, discharge fire resistant fluid, then high-pressure impregnation tank is evacuated to 0.06MPa ~ 0.09MPa again, in maintenance after 10 ~ 30 minutes, remove vacuum, take out timber;
(4), the timber after flame-retardant impregnating process is given drying after, obtain spendable fire retarding wood.
By above-mentioned technique for the treatment of of wood being carried out to flame treatment, wood fire retardant can reach 8 ~ 10mm at effective Impregnation depth of timber, and the fire resistant fluid reusable edible after each process, and the concentration of fire resistant fluid does not change because of the change of process timber number of times.
The invention has the beneficial effects as follows, compared with prior art, a kind of water soluble timber fire retardant of the present invention has excellent flame retarding and smoke suppressing properties and leach resistance, and the oxygen index (OI) of the timber after its flame treatment can reach more than 60%, and smoke density is below 25%.
Detailed description of the invention
Technical scheme of the present invention is further illustrated below in conjunction with concrete preferred embodiment.
A kind of water soluble timber fire retardant, its component by mass percent proportioning is: polyphosphoric acid 30%, dicyandiamide 20%, APP 15%, boric acid 8%, borax 8%, Ludox 15%, diethanol amine 3%, pentaerythrite 1%.Wherein, the mass percent concentration of described polyphosphoric acid is 75% ~ 85%; The content of the silica of described silicon dioxide gel is 20 ~ 40wt%.
Its preparation method is: (1), take each component by mass percent proportioning; (2), dicyandiamide is added water to be mixed with mass percent concentration be 40% ~ 70% aqueous solution, add phosphoric acid, and react 1 ~ 2 hour under being heated to 80 DEG C ~ 90 DEG C temperature, then cool, again after filtration, crystallization, oven dry, after pulverizing, carbamidophosphoric acid salt GUP fire retardant is obtained; (3) the carbamidophosphoric acid salt GUP fire retardant, step (2) obtained and APP, boric acid, borax, Ludox, diethanol amine, pentaerythrite are mixed together evenly, discharging, oven dry, pulverize, sieve, obtain a kind of water soluble timber fire retardant of the present invention.
The processing step adopting a kind of water soluble timber fire retardant of the present invention to carry out flame treatment to timber is as follows:
(1), by pending drying of wood process, make its moisture content≤12%, and before flame treatment is carried out to it, give Microwave Pretreatment 10 ~ 30 minutes;
(2), a kind of water soluble timber fire retardant of the present invention is added water to be mixed with mass concentration be 15% ~ 20% fire resistant fluid;
(3), step (1) drying, pretreated timber are loaded in high-pressure impregnation tank, after building lid, by high-pressure impregnation tank suction to 0.06MPa ~ 0.09MPa, keep 30 ~ 60 minutes, then in high-pressure impregnation tank, fill the fire resistant fluid of step (2), removal vacuum, slowly be forced into 1.2 ~ 1.4MPa, and keep 2 ~ 4 hours, release, discharge fire resistant fluid, then high-pressure impregnation tank is evacuated to 0.06MPa ~ 0.09MPa again, in maintenance after 10 ~ 30 minutes, remove vacuum, take out timber;
(4), the timber after flame-retardant impregnating process is given drying after, obtain spendable fire retarding wood.

Claims (5)

1. a water soluble timber fire retardant, it is characterized in that, its component by mass percent proportioning is: polyphosphoric acid 20% ~ 40%, dicyandiamide 10% ~ 30%, APP 10% ~ 30%, boric acid 5% ~ 10%, borax 5% ~ 10%, Ludox 5% ~ 15%, diethanol amine 0.5% ~ 3%, pentaerythrite 0.1% ~ 1%.
2. a kind of water soluble timber fire retardant according to claim 1, is characterized in that, the mass percent concentration of described polyphosphoric acid is 75% ~ 85%.
3. a kind of water soluble timber fire retardant according to claim 1, is characterized in that, the content of the silica of described silicon dioxide gel is 20 ~ 40wt%.
4. the preparation method of a kind of water soluble timber fire retardant according to claim 1, is characterized in that, comprise the following steps:
(1), each component is taken by mass percent proportioning;
(2), dicyandiamide is added water to be mixed with mass percent concentration be 40% ~ 70% aqueous solution, add phosphoric acid, and react 1 ~ 2 hour under being heated to 80 DEG C ~ 90 DEG C temperature, then cool, again after filtration, crystallization, oven dry, after pulverizing, carbamidophosphoric acid salt GUP fire retardant is obtained;
(3) the carbamidophosphoric acid salt GUP fire retardant, step (2) obtained and APP, boric acid, borax, Ludox, diethanol amine, pentaerythrite are mixed together evenly, discharging, oven dry, pulverize, sieve, obtain a kind of water soluble timber fire retardant of the present invention.
5. a kind of water soluble timber fire retardant according to claim 1 carries out fire retardant treatment process to timber, it is characterized in that, comprises the following steps:
(1), by pending drying of wood process, make its moisture content≤12%, and before flame treatment is carried out to it, give Microwave Pretreatment 10 ~ 30 minutes;
(2), a kind of water soluble timber fire retardant of the present invention is added water to be mixed with mass concentration be 15% ~ 20% fire resistant fluid;
(3), step (1) drying, pretreated timber are loaded in high-pressure impregnation tank, after building lid, by high-pressure impregnation tank suction to 0.06MPa ~ 0.09MPa, keep 30 ~ 60 minutes, then in high-pressure impregnation tank, fill the fire resistant fluid of step (2), removal vacuum, slowly be forced into 1.2 ~ 1.4MPa, and keep 2 ~ 4 hours, release, discharge fire resistant fluid, then high-pressure impregnation tank is evacuated to 0.06MPa ~ 0.09MPa again, in maintenance after 10 ~ 30 minutes, remove vacuum, take out timber;
(4), the timber after flame-retardant impregnating process is given drying after, obtain spendable fire retarding wood.
CN201310673335.5A 2013-12-12 2013-12-12 Water-soluble timber flame retardant, preparation method and applications thereof Pending CN104708690A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310673335.5A CN104708690A (en) 2013-12-12 2013-12-12 Water-soluble timber flame retardant, preparation method and applications thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310673335.5A CN104708690A (en) 2013-12-12 2013-12-12 Water-soluble timber flame retardant, preparation method and applications thereof

Publications (1)

Publication Number Publication Date
CN104708690A true CN104708690A (en) 2015-06-17

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Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
CN (1) CN104708690A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105643734A (en) * 2016-01-08 2016-06-08 广西大学 Composite flame retardant and preparation method thereof and application to production of flame retardant plywood
CN106433132A (en) * 2016-05-07 2017-02-22 洛阳辰祥机械科技有限公司 Multielement flame retardant and preparation method thereof
CN110065118A (en) * 2019-05-28 2019-07-30 什邡市长丰化工有限公司 A kind of transparent maceration extract and preparation method thereof for fire-retarding of wood

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105643734A (en) * 2016-01-08 2016-06-08 广西大学 Composite flame retardant and preparation method thereof and application to production of flame retardant plywood
CN106433132A (en) * 2016-05-07 2017-02-22 洛阳辰祥机械科技有限公司 Multielement flame retardant and preparation method thereof
CN110065118A (en) * 2019-05-28 2019-07-30 什邡市长丰化工有限公司 A kind of transparent maceration extract and preparation method thereof for fire-retarding of wood

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WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20150617

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