CN112795267A - Fireproof coating, antique wood hanging plate and preparation method thereof - Google Patents

Fireproof coating, antique wood hanging plate and preparation method thereof Download PDF

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Publication number
CN112795267A
CN112795267A CN202110126592.1A CN202110126592A CN112795267A CN 112795267 A CN112795267 A CN 112795267A CN 202110126592 A CN202110126592 A CN 202110126592A CN 112795267 A CN112795267 A CN 112795267A
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parts
coating
fireproof
wood
hanging plate
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Inventor
王新钢
李利君
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Sichuan Fire Research Institute of Emergency Management Department
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Sichuan Fire Research Institute of Emergency Management Department
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Priority to CN202110126592.1A priority Critical patent/CN112795267A/en
Publication of CN112795267A publication Critical patent/CN112795267A/en
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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D161/00—Coating compositions based on condensation polymers of aldehydes or ketones; Coating compositions based on derivatives of such polymers
    • C09D161/20—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
    • B05D3/0209—Multistage baking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
    • B05D3/0254—After-treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/06—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to wood
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/18—Fireproof paints including high temperature resistant paints
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/63—Additives non-macromolecular organic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/65—Additives macromolecular
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/02—Flame or fire retardant/resistant

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Paints Or Removers (AREA)
  • Fireproofing Substances (AREA)

Abstract

The invention relates to a fireproof coating, an antique wood hanging plate and a preparation method thereof, wherein the fireproof coating is mainly prepared from 18-22 parts by weight of amino resin; 4-7 parts of a composite dispersant; 2-5 parts of ethylene-acetic acid copolymer; 3-7 parts of polysiloxane; 15-30 parts of a flame retardant; 8-12 parts of pentaerythritol; 2-6 parts of phytic acid; 0.5-1.5 parts of triethanolamine; 4-6 parts of wood stabilizer MJB-TF; 2-5 parts of color paste; 22 to 48 portions of water. Meanwhile, the fireproof coating prepared by stirring twice and ultrasonic action is also disclosed. Through the mutual matching among the raw materials and the action of the preparation method and the process parameters, the prepared fireproof coating has better dispersion uniformity and fluidity, can be coated on the surface of the wood hanging plate at one time, greatly simplifies the construction period, realizes industrial production, and can ensure that the coating has higher fireproof performance.

Description

Fireproof coating, antique wood hanging plate and preparation method thereof
Technical Field
The invention relates to the technical field of fireproof paint, and particularly relates to fireproof paint, an antique wood hanging plate and a preparation method thereof
Background
The antique wood hanging plate is a wood finished product decoration hanging plate, and is widely applied to wall devices, decoration and the like of villas, multi-storey or high-rise apartment buildings, office buildings and entertainment places, and the antique wood hanging plate not only has the functions of sound insulation and heat preservation, but also has the fire-proof performance which is an important index for evaluating the comprehensive quality of the wood hanging plate.
At present, the fireproof coating for coating the wood hanging plate is a research hotspot of researchers at home and abroad, and the fireproof coating not only needs to have better flame retardant effect, but also is suitable for industrialized coating process. Some fireproof coatings are good in flame retardant effect, but need manual multiple brushing, cannot be applied to coating machines for coating wood hanging plates, not only prolongs the production period in the production process, but also cannot ensure the uniformity of manual brushing.
Disclosure of Invention
The invention aims to: aiming at the technical problems that the fireproof performance of the antique wood hanging plate coating is poor or the coating is only suitable for manual brushing, the fireproof coating, the antique wood hanging plate and the preparation method are provided, so that the prepared fireproof coating has good dispersion uniformity and fluidity, can be coated on the surface of the antique wood hanging plate at one time, greatly simplifies the construction period, realizes industrial production, and can ensure that the coating has high fireproof performance.
In order to achieve the purpose, the invention adopts the technical scheme that:
the fireproof paint is characterized by being mainly prepared from 18 to 22 parts by weight of amino resin; 4-7 parts of a composite dispersant; 2-5 parts of ethylene-acetic acid copolymer; 3-7 parts of polysiloxane; 15-30 parts of a flame retardant; 8-12 parts of pentaerythritol; 2-6 parts of phytic acid; 0.5-1.5 parts of triethanolamine; 4-6 parts of wood stabilizer MJB-TF; 2-5 parts of color paste; 22 to 48 portions of water.
The fireproof coating provided by the invention is prepared from various raw materials, and the prepared fireproof coating can be coated on the surface of a wooden hanging plate at one time by adjusting the adding components and the adding proportion of the raw materials, so that the construction period is greatly simplified, the industrial production is realized, and the coating can be ensured to have higher fireproof performance. The fireproof coating takes amino resin as a raw material main body, then, polysiloxane and phosphonate ester are utilized, condensation polymerization can occur under certain conditions, a long-chain structure with a cross-network structure is formed after reaction, coating components of the coating are effectively coated, meanwhile, the polysiloxane and the amino resin have good compatibility due to unique polysiloxane branched chains, hydrogen bonds, ether bonds and the like, and a composite dispersing agent is added into the raw materials.
Further, the composite dispersant comprises 4-6 parts of ethylene glycol butyl ether; 0.05 to 0.2 portion of alcohol ester-12; 0.05 to 0.2 portion of benzyl alcohol; 0.1 to 0.2 portion of aqueous polyurethane dispersoid. Preferably, the composite dispersant comprises 5-6 parts of ethylene glycol butyl ether; 0.1 to 0.2 portion of alcohol ester-12; 0.1 to 0.2 portion of benzyl alcohol; 0.15 to 0.2 portion of aqueous polyurethane dispersoid. The composite dispersing agent provided by the invention mainly comprises ethylene glycol monobutyl ether, alcohol ester-12, benzyl alcohol and an aqueous polyurethane dispersoid, can be effectively crosslinked with other raw material components after being used as a raw material of a fireproof coating by pertinently adjusting the adding proportion of the raw materials, has better fluidity, has high viscosity of the coating and a wood hanging plate, has good flame retardant effect and better automatic coating effect by a machine.
Further, the flame retardant comprises 4-6 parts of phosphonate ester, 5-8 parts of phosphorus nitrogen phosphate ester, 4-8 parts of guanidine phosphate and 1-2 parts of zirconium borate.
Further, the resin is mainly prepared from the following raw materials in parts by weight, 20-22 parts of amino resin; 5-7 parts of a composite dispersant; 3-5 parts of ethylene-acetic acid copolymer; 4-7 parts of polysiloxane; 25-30 parts of a flame retardant; 10-12 parts of pentaerythritol; 3-6 parts of phytic acid; 1-1.5 parts of triethanolamine; 5-6 parts of wood stabilizer MJB-TF; 2-5 parts of color paste; 22 to 48 portions of water. Through a large amount of experimental researches of the inventor, the flame retardant effect and the mechanical coating effect are better within the range of the addition ratio of the raw materials. Preferably, the resin is mainly prepared from the following raw materials in parts by weight, 20 parts of amino resin; 6 parts of a composite dispersant; 5 parts of ethylene-vinyl acetate copolymer; 7 parts of polysiloxane; 25 parts of a flame retardant; 11 parts of pentaerythritol; 5 parts of phytic acid; 1 part of triethanolamine; 5 parts of wood stabilizer MJB-TF; 5 parts of color paste; 35 parts of water.
The invention also aims to provide a preparation method of the fireproof coating.
A preparation method of a fireproof coating comprises the following steps:
step 1, mixing the raw materials in proportion, stirring for the first time, and standing for more than 1h to obtain a first material;
and 2, stirring the first material obtained in the step 1 for the second time under the action of ultrasound, and stopping stirring after 5-10 min to obtain the fireproof coating.
According to the preparation method of the coating, the original materials are mixed firstly in the preparation process, then the stirring treatment is carried out twice, the standing treatment is carried out after the first stirring, and then the second stirring is carried out under the action of the ultrasonic wave.
Further, in the step 1, the rotation speed of the first stirring is 1000r/min or less. Preferably, in the step 1, the rotation speed of the first stirring is 600r/min to 1000 r/min. Researches find that the rotating speed in the first stirring process cannot be too high, the cross-linking effect of raw materials in the coating can be influenced by the too high rotating speed, and the finally prepared coating is poor in flame retardance and flowability.
Further, in the step 1, the time for the first stirring is 10min to 20 min.
Further, in the step 1, standing for 1-3 hours.
Further, in the step 2, the frequency of the ultrasound is 50KHz to 100 KHz. Preferably, in the step 2, the frequency of the ultrasound is 80KHz to 100 KHz.
Further, in the step 2, the rotation speed of the second stirring is 1000 r/min-1500 r/min. Preferably, in the step 2, the rotation speed of the second stirring is 1000 r/min-1200 r/min.
Another object of the present invention is to provide a wood-hanging panel.
The outer surface of the wood hanging plate is coated with the coating prepared by the method.
The wood hanging board coated with the coating has higher flame retardance, good mechanical coating effect, transparent appearance and better brightness.
Further, the fireproof coating is applied by a method,
firstly, adding the fireproof coating into a coating machine, and coating the fireproof coating on the outer surface of the wood hanging plate substrate at one time by using the coating machine; and then drying the wood hanging plate at 60-65 ℃ for more than 4min, and then heating to 70-75 ℃ for curing for more than 2min to obtain the wood hanging plate coated with the fireproof coating.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. the fireproof coating provided by the invention is prepared from various raw materials, and the prepared fireproof coating has better dispersion uniformity and fluidity by adjusting the addition components and the addition proportion of the raw materials, can be coated on the surface of a wood hanging plate at one time, greatly simplifies the construction period, realizes industrial production, and can ensure that the coating has higher fireproof performance. The fireproof coating takes amino resin as a raw material main body, then, polysiloxane and phosphonate ester are utilized, condensation polymerization can occur under certain conditions, a long-chain structure with a cross-network structure is formed after reaction, coating components of the coating are effectively coated, meanwhile, the polysiloxane and the amino resin have good compatibility due to unique polysiloxane branched chains, hydrogen bonds, ether bonds and the like, and a composite dispersing agent is added into the raw materials.
2. According to the preparation method of the coating, the original materials are mixed firstly in the preparation process, then the stirring treatment is carried out twice, the standing treatment is carried out after the first stirring, and then the second stirring is carried out under the action of the ultrasonic wave.
3. The antique wood hanging plate coated with the fireproof coating has the advantages of high flame retardance, good mechanical coating effect, transparent appearance and good brightness.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
Raw materials: 20 parts of amino resin; 5 parts of ethylene glycol butyl ether; 0.2 part of alcohol ester-12; 0.2 part of benzyl alcohol; 0.15 part of aqueous polyurethane dispersion; 5 parts of ethylene-vinyl acetate copolymer; 7 parts of polysiloxane; 5 parts of phosphonate, 6 parts of phosphorus nitrogen phosphate, 6 parts of guanidine phosphate and 2 parts of zirconium borate; 11 parts of pentaerythritol; 5 parts of phytic acid; 1 part of triethanolamine; 5 parts of wood stabilizer MJB-TF; 5 parts of color paste; 35 parts of water.
Preparation of fire-retardant coating
The method comprises the following steps:
step 1, mixing the raw materials in proportion, stirring for the first time for 20min at the rotating speed of 1000r/min, and then standing for 2h to obtain a first material;
and 2, stirring the first material obtained in the step 1 for the second time under the ultrasonic action with the frequency of 100KHz, wherein the rotating speed is 1500r/min, and stopping after 10min to obtain the fireproof coating.
Coated wood hanging board
Firstly, adding the prepared fireproof coating into a coating machine, and coating the fireproof coating on the outer surface of the wood hanging plate substrate at one time by using the coating machine; and then drying the wood hanging plate at 62 ℃ for more than 4min, and then heating to 74 ℃ for curing for 6min to obtain the antique wood hanging plate coated with the fireproof paint.
Tests show that the fireproof coating has better dispersion uniformity and fluidity, the coating machine is smoother when the coating machine is filled with the coating, and the phenomenon of blockage or stagnation of the coating machine cannot occur.
Taking a block, the coating amount is 500g/m2The wood hanging plate with the thickness of 200mm multiplied by 100mm is put in a combustion bracket for experiment, the temperature of flame in the experiment is 1000 ℃, the fireproof coating expands and foams rapidly after the experiment begins, a honeycomb-shaped compact carbon layer is formed, the expansion ratio of the carbon layer is 50-100 times, the flame and heat transmission is effectively blocked, and the base material is not damaged within 3 minutes.
The fire-retardant coating is subjected to overall performance detection according to the national standard GB/T12441-2005, and the detection result is that the flame resistance time is 32min (the standard requirement is more than or equal to 15min), the flame propagation ratio is 5 (the standard is less than or equal to 25), the mass damage is 0.9g (the standard is less than or equal to 5g), and the carbonization volume is 5cm3(standard is 25cm or less)3)。
Therefore, the fireproof coating prepared by the method disclosed by the invention has better dispersion uniformity and fluidity, can be coated on the surface of a wood hanging plate at one time, greatly simplifies the construction period, realizes industrial production, and can ensure that the coating has higher fireproof performance.
Example 2
Raw materials: 22 parts of amino resin; 6 parts of ethylene glycol butyl ether; 0.1 part of alcohol ester-12; 0.1 part of benzyl alcohol; 0.2 part of aqueous polyurethane dispersion; 4 parts of ethylene-vinyl acetate copolymer; 5 parts of polysiloxane; 5 parts of phosphonate, 7 parts of phosphorus nitrogen phosphate, 8 parts of guanidine phosphate and 1 part of zirconium borate; 10 parts of pentaerythritol; 5 parts of phytic acid; 1.0 part of triethanolamine; 6 parts of wood stabilizer MJB-TF; 4 parts of color paste; and 45 parts of water.
Preparation of fire-retardant coating
The method comprises the following steps:
step 1, mixing the raw materials in proportion, stirring for the first time for 15min at the rotating speed of 800r/min, and then standing for 1h to obtain a first material;
and 2, stirring the first material obtained in the step 1 for the second time under the ultrasonic action with the frequency of 80KHz, wherein the rotating speed is 1200r/min, and stopping after 8min to obtain the fireproof coating.
Coated wood hanging board
Firstly, adding the fireproof coating into a coating machine, and coating the fireproof coating on the outer surface of the wood hanging plate substrate at one time by using the coating machine; and then drying the wood hanging plate at 65 ℃ for 10min, and then heating to 72 ℃ for curing for 8min to obtain the antique wood hanging plate coated with the fireproof coating.
Tests show that the fireproof coating has better dispersion uniformity and fluidity, the coating machine is smoother when the coating machine is filled with the coating, and the phenomenon of blockage or stagnation of the coating machine cannot occur.
Taking a block, the coating amount is 500g/m2The wood hanging plate with the thickness of 200mm multiplied by 100mm is put in a combustion bracket for experiment, the temperature of flame in the experiment is 1000 ℃, the fireproof coating expands and foams rapidly after the experiment begins, a honeycomb-shaped compact carbon layer is formed, the expansion ratio of the carbon layer is 50-100 times, the flame and heat transmission is effectively blocked, and the base material is not damaged within 3 minutes.
The fire-retardant coating is subjected to overall performance detection according to the national standard GB/T12441-2005, and the detection result is that the flame resistance time is 28min (the standard requirement is more than or equal to 15min), the flame propagation ratio is 8 (the standard is less than or equal to 25), the mass damage is 3.1g (the standard is less than or equal to 5g), and the carbonization volume is 4.7cm3(standard is 25cm or less)3)。
Therefore, the fireproof coating prepared by the method disclosed by the invention has better dispersion uniformity and fluidity, can be coated on the surface of a wood hanging plate at one time, greatly simplifies the construction period, realizes industrial production, and can ensure that the coating has higher fireproof performance.
Example 3
Raw materials: 18 parts of amino resin; 4 parts of ethylene glycol butyl ether; 0.05 part of alcohol ester-12; 0.05 part of benzyl alcohol; 0.1 part of aqueous polyurethane dispersion; 3 parts of ethylene-acetic acid copolymer; 4 parts of polysiloxane; 5 parts of phosphonate, 6 parts of phosphorus nitrogen phosphate, 7 parts of guanidine phosphate and 2 parts of zirconium borate; 9 parts of pentaerythritol; 3 parts of phytic acid; 1 part of triethanolamine; 5 parts of wood stabilizer MJB-TF; 3 parts of color paste; and 30 parts of water.
Preparation of fire-retardant coating
The method comprises the following steps:
step 1, mixing the raw materials in proportion, stirring for the first time for 12min at the rotating speed of 700r/min, and then standing for 1h to obtain a first material;
and 2, stirring the first material obtained in the step 1 for the second time under the ultrasonic action with the frequency of 60KHz, wherein the rotating speed is 1100r/min, and stopping after 6min to obtain the fireproof coating.
Coated wood hanging board
Firstly, adding the prepared fireproof coating into a coating machine, and coating the fireproof coating on the outer surface of the wood hanging plate substrate at one time by using the coating machine; and then drying the wood hanging plate at 60 ℃ for 8min, and then heating to 70 ℃ for curing for 6min to obtain the antique wood hanging plate coated with the fireproof paint.
Tests show that the fireproof coating has better dispersion uniformity and fluidity, the coating machine is smoother when the coating machine is filled with the coating, and the phenomenon of blockage or stagnation of the coating machine cannot occur.
Taking a block, the coating amount is 500g/m2The wood hanging plate with the thickness of 200mm multiplied by 100mm is put in a combustion bracket for experiment, the temperature of flame in the experiment is 1000 ℃, the fireproof coating expands and foams rapidly after the experiment begins, a honeycomb-shaped compact carbon layer is formed, the expansion ratio of the carbon layer is 50-100 times, the flame and heat transmission is effectively blocked, and the base material is not damaged within 3 minutes.
The fire-retardant coating is subjected to overall performance detection according to the national standard GB/T12441-2005, and the detection result is that the flame resistance time is 28min (the standard requirement is more than or equal to 15min), the flame propagation ratio is 14 (the standard is less than or equal to 25), the mass damage is 2.6g (the standard is less than or equal to 5g), the carbonization volume is 4cm3(standard is 25cm or less)3)。
Therefore, the fireproof coating prepared by the method disclosed by the invention has better dispersion uniformity and fluidity, can be coated on the surface of a wood hanging plate at one time, greatly simplifies the construction period, realizes industrial production, and can ensure that the coating has higher fireproof performance.
Example 4
Raw materials: 19 parts of amino resin; 4.5 parts of ethylene glycol butyl ether; 0.15 part of alcohol ester-12; 0.152 part of benzyl alcohol; 0.1 part of aqueous polyurethane dispersion; 2 parts of ethylene-vinyl acetate copolymer; 3 parts of polysiloxane; 4 parts of phosphonate, 5 parts of phosphorus nitrogen phosphate, 4 parts of guanidine phosphate and 1 part of zirconium borate; 8 parts of pentaerythritol; phytic acid 2; 0.5 part of triethanolamine; 4 parts of wood stabilizer MJB-TF; 2 parts of color paste; and 22 parts of water.
Preparation of fire-retardant coating
The method comprises the following steps:
step 1, mixing the raw materials in proportion, stirring for the first time for 10min at the rotating speed of 600r/min, and then standing for 3h to obtain a first material;
and 2, stirring the first material obtained in the step 1 for the second time under the ultrasonic action with the frequency of 50KHz, wherein the rotating speed is 1000r/min, and stopping after 5min to obtain the fireproof coating.
Coated wood hanging board
Firstly, adding the prepared fireproof coating into a coating machine, and coating the fireproof coating on the outer surface of the wood hanging plate substrate at one time by using the coating machine; and then drying the wood hanging plate at 63 ℃ for 3min, and then heating to 72 ℃ for curing for 8min to obtain the antique wood hanging plate coated with the fireproof paint.
Tests show that the fireproof coating has better dispersion uniformity and fluidity, the coating machine is smoother when the coating machine is filled with the coating, and the phenomenon of blockage or stagnation of the coating machine cannot occur.
Taking a block, the coating amount is 500g/m2The wood hanging plate with the thickness of 200mm multiplied by 100mm is put in a combustion bracket for experiment, the temperature of flame in the experiment is 1000 ℃, the fireproof coating expands and foams rapidly after the experiment begins to form a honeycomb-shaped compact carbon layer, the expansion ratio of the carbon layer is 50-100 times, the propagation of flame and heat can be effectively blocked, and the base material can be used in 3 minutesIs not damaged.
The fire-retardant coating is subjected to overall performance detection according to the national standard GB/T12441-2005, and the detection result is that the flame resistance time is 28min (the standard requirement is more than or equal to 15min), the flame propagation ratio is 6 (the standard is less than or equal to 25), the mass damage is 3.3g (the standard is less than or equal to 5g), and the carbonization volume is 5.2cm3(standard is 25cm or less)3)。
Therefore, the fireproof coating prepared by the method disclosed by the invention has better dispersion uniformity and fluidity, can be coated on the surface of a wood hanging plate at one time, greatly simplifies the construction period, realizes industrial production, and can ensure that the coating has higher fireproof performance.
Comparative example 1
In comparative example 1, no ethylene glycol butyl ether was added to the starting material as compared to example 1, and the composition of the other starting material was the same as in example 1, wherein the total amount of alcohol ester-12, benzyl alcohol and aqueous polyurethane dispersion added in comparative example 1 was the same as the total amount of ethylene glycol butyl ether, alcohol ester-12, benzyl alcohol and aqueous polyurethane dispersion added in example 1. Comparative example 1 the amount of each of the other raw materials added was the same as in example 1. The procedure of comparative example 1 was exactly the same as in example 1.
Tests show that the dispersion uniformity and the flowability of the fireproof coating are poor, and the coating machine is occasionally blocked or stopped when the coating machine is filled.
The fire-retardant coating is subjected to overall performance detection according to the national standard GB/T12441-2005, the detection result is that the flame resistance time is 15min (the standard requirement is more than or equal to 15min), the flame propagation ratio is 26 standard and is less than or equal to 25), the mass damage is 5.2g (the standard is less than or equal to 5g), the carbonization volume is 20cm3(standard is 25cm or less)3)。
It can be seen that, since ethylene glycol monobutyl ether is not added to the raw materials, the dispersion uniformity and the fluidity of the fire retardant coating are reduced, the manufacturability is reduced, and the fire retardant performance is also reduced compared with example 1.
Comparative example 2
In comparative example 2, the alcohol ester-12 was not added to the starting material as compared to example 1, and the composition of the other starting material was the same as in example 1, wherein the total amount of butyl glycol ether, benzyl alcohol and aqueous polyurethane dispersion added in comparative example 1 was the same as the total amount of butyl glycol ether, alcohol ester-12, benzyl alcohol and aqueous polyurethane dispersion added in example 1. Comparative example 1 the amount of each of the other raw materials added was the same as in example 1. The procedure of comparative example 1 was exactly the same as in example 1.
Tests show that the dispersion uniformity and the flowability of the fireproof coating are poor, and the coating machine is occasionally blocked or stopped when the coating machine is filled.
The fire-retardant coating is subjected to overall performance detection according to the national standard GB/T12441-2005, the detection result is that the flame resistance time is 13min (the standard requirement is more than or equal to 15min), the flame propagation ratio is 27 (the standard is less than or equal to 25), the mass damage is 5.4g (the standard is less than or equal to 5g), and the carbonization volume is 28cm3(standard is 25cm or less)3)。
It can be seen that, without the addition of alcohol ester-12, the dispersion uniformity and fluidity of the fire retardant coating are reduced, the manufacturability is reduced, and the fire retardant performance is also reduced compared to example 1.
Comparative example 3
In comparative example 3, no benzyl alcohol was added to the raw material as compared to example 1, and the composition of the other raw material was the same as in example 1, wherein the total amount of butyl glycol ether, alcohol ester-12 and aqueous polyurethane dispersion added in comparative example 1 was the same as the total amount of butyl glycol ether, alcohol ester-12, benzyl alcohol and aqueous polyurethane dispersion added in example 1. Comparative example 1 the amount of each of the other raw materials added was the same as in example 1. The procedure of comparative example 1 was exactly the same as in example 1.
Tests show that the dispersion uniformity and the flowability of the fireproof coating are poor, and the coating machine is occasionally blocked or stopped when the coating machine is filled.
The fire-retardant coating is subjected to overall performance detection according to the national standard GB/T12441-2005, and the detection result is that the flame resistance time is 12min (the standard requirement is more than or equal to 15min), the flame propagation ratio is 17 (the standard is less than or equal to 25), the mass damage is 5.4g (the standard is less than or equal to 5g), the carbonization volume is 24cm3(standard is 25cm or less)3)。
It can be seen that, since benzyl alcohol was not added to the raw materials, the dispersion uniformity and fluidity of the fire retardant coating were reduced, the manufacturability was reduced, and the fire retardant performance was also reduced as compared with example 1.
Comparative example 4
Comparative example 4 compared to example 1, the raw materials were not added with aqueous polyurethane dispersion, and the other raw materials had the same composition as in example 1, wherein the total amount of ethylene glycol butyl ether, alcohol ester-12 and benzyl alcohol added in comparative example 1 was the same as the total amount of ethylene glycol butyl ether, alcohol ester-12, benzyl alcohol and aqueous polyurethane dispersion added in example 1. Comparative example 1 the amount of each of the other raw materials added was the same as in example 1. The procedure of comparative example 1 was exactly the same as in example 1.
Tests show that the dispersion uniformity and the flowability of the fireproof coating are poor, and the coating machine can be blocked or stopped when the coating machine is filled with the coating.
The fire-retardant coating is subjected to overall performance detection according to the national standard GB/T12441-2005, and the detection result is that the flame resistance time is 14min (the standard requirement is more than or equal to 15min), the flame propagation ratio is 21 (the standard is less than or equal to 25), the mass damage is 5.0g (the standard is less than or equal to 5g), the carbonization volume is 25cm3(standard is 25cm or less)3)。
It can be seen from this that, when the aqueous polyurethane dispersion was not added to the raw materials, the dispersion uniformity and fluidity of the fire retardant coating material were lowered, the workability was lowered, and the fire retardant performance was also lowered as compared with example 1.
Comparative example 5
Compared with the example 1, the rotating speed of the first stirring in the preparation process of the comparative example 5 is 1200r/min, and the types, the addition amounts and other preparation processes and process parameters of the raw materials used in the comparative example 5 are the same as those of the example 1.
Tests show that the dispersion uniformity and the flowability of the fireproof coating are poor, and the coating machine can be blocked or stopped when the coating machine is filled with the coating.
The fire-retardant coating is subjected to overall performance detection according to the national standard GB/T12441-2005, and the detection result is that the flame-retardant time is 14min (the standard requirement is more than or equal to 15 mi)n), the flame propagation ratio is 26 (standard is less than or equal to 25), the mass damage is 5.0g (standard is less than or equal to 5g), and the carbonization volume is 25cm3(standard is 25cm or less)3)。
It can be seen that the rotation speed of the stirring in the preparation method is also a very important influence factor, the rotation speed is too high, the dispersion uniformity and the fluidity of the fireproof coating are reduced, the manufacturability is reduced, and the fireproof performance is also reduced compared with example 1.
Comparative example 6
Comparative example 6 compared with example 1, the second stirring was directly performed without ultrasonic treatment in the preparation process, and the kind, addition amount and other preparation processes and process parameters of the raw materials used in comparative example 6 were the same as those of example 1.
Tests show that the dispersion uniformity and the flowability of the fireproof coating are poor, and the coating machine can be blocked or stopped when the coating machine is filled with the coating.
The fire-retardant coating is subjected to overall performance detection according to the national standard GB/T12441-2005, and the detection result is that the flame resistance time is 11min (the standard requirement is more than or equal to 15min), the flame propagation ratio is 28 (the standard is less than or equal to 25), the mass damage is 5.4g (the standard is less than or equal to 5g), the carbonization volume is 25cm3(standard is 25cm or less)3)。
It can be seen that the ultrasonic treatment in the preparation method is also a very important influencing factor, and only the stirring state may influence the cross-linking effect between the raw materials, the dispersion uniformity and the fluidity of the fire retardant coating may be reduced, the manufacturability may be reduced, and the fire retardant performance may be reduced compared with example 1.
Comparative example 7
Comparative example 7 compared with example 1, the preparation process was carried out by one-time stirring, no second stirring was carried out, and the raw materials and the addition amount of comparative example 7 were the same as those of example 1.
Tests show that the dispersion uniformity and the flowability of the fireproof coating are poor, and the coating machine can be seriously blocked or stopped when the coating machine is filled with the coating.
The fireproof coating is added according to the national standard GB/T12441-2005The overall performance is detected, the detection result is that the flame resistance time is 11min (the standard requirement is more than or equal to 15min), the flame propagation ratio is 25 (the standard is less than or equal to 25), the mass damage is 4.9g (the standard is less than or equal to 5g), and the carbonization volume is 28cm3(standard is 25cm or less)3)。
It can be seen that, in the preparation method, only one stirring may affect the cross-linking effect between the raw materials, the dispersion uniformity and fluidity of the fire retardant coating may be reduced, the manufacturability may be reduced, and the fire retardant performance may be reduced compared to example 1.
Comparative example 8
a coating prepared according to example 2 disclosed in chinese patent CN 106634394. Tests show that the dispersion uniformity and the flowability of the fireproof coating are poor, the coating machine can be seriously blocked when the coating machine is filled with the coating, and the coating process cannot be implemented.
And B, adding water to the coating prepared in the test in the group a for dilution to improve the fluidity, so that the coating process can be completed by a coating machine.
The fire-retardant coating is subjected to overall performance detection according to the national standard GB/T12441-2005, and the detection result is that the flame resistance time is 4min (the standard requirement is more than or equal to 15min), the flame propagation ratio is 27 (the standard is less than or equal to 25), the mass damage is 10g (the standard is less than or equal to 5g), and the carbonization volume is 28cm3 (the standard is less than or equal to 25cm 3).
Therefore, the fire-retardant performance of the coating after adding water is seriously reduced.
Thus. The fireproof coating provided by the invention is prepared from various raw materials, the addition components and the addition proportion of the raw materials are adjusted, and the parameter design of stirring twice is adjusted in a targeted manner in the preparation process, so that the prepared fireproof coating has good fluidity and good adhesion, has good dispersion uniformity and fluidity, can be coated on the surface of a wood hanging plate at one time, greatly simplifies the construction period, realizes industrial production, and can ensure that the coating has high fireproof performance.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. The fireproof paint is characterized by being mainly prepared from 18 to 22 parts by weight of amino resin; 4-7 parts of a composite dispersant; 2-5 parts of ethylene-acetic acid copolymer; 3-7 parts of polysiloxane; 15-30 parts of a flame retardant; 8-12 parts of pentaerythritol; 2-6 parts of phytic acid; 0.5-1.5 parts of triethanolamine; 4-6 parts of wood stabilizer MJB-TF; 2-5 parts of color paste; 22 to 48 portions of water.
2. The fireproof coating of claim 1, wherein the composite dispersant comprises 4 to 6 parts of butyl cellosolve; 0.05 to 0.2 portion of alcohol ester-12; 0.05 to 0.2 portion of benzyl alcohol; 0.1 to 0.2 portion of aqueous polyurethane dispersoid.
3. The fireproof coating of claim 2, wherein the composite dispersant comprises 5 to 6 parts of butyl cellosolve; 0.1 to 0.2 portion of alcohol ester-12; 0.1 to 0.2 portion of benzyl alcohol; 0.15 to 0.2 portion of aqueous polyurethane dispersoid.
4. The fireproof paint of claim 1, wherein the flame retardant comprises 4 to 6 parts of phosphonate, 5 to 8 parts of phosphorus nitrogen phosphate, 4 to 8 parts of guanidine phosphate and 1 to 2 parts of zirconium borate.
5. The fireproof paint according to claim 1, which is prepared mainly from the following raw materials, by weight, 20-22 parts of amino resin; 5-7 parts of a composite dispersant; 3-5 parts of ethylene-acetic acid copolymer; 4-7 parts of polysiloxane; 25-30 parts of a flame retardant; 10-12 parts of pentaerythritol; 3-6 parts of phytic acid; 1-1.5 parts of triethanolamine; 5-6 parts of wood stabilizer MJB-TF; 2-5 parts of color paste; 22 to 48 portions of water.
6. A method for preparing a fire retardant coating according to any one of claims 1 to 5, comprising the steps of:
step 1, mixing the raw materials in proportion, stirring for the first time, and standing for more than 1h to obtain a first material;
and 2, stirring the first material obtained in the step 1 for the second time under the action of ultrasound, and stopping stirring after 5-10 min to obtain the fireproof coating.
7. The preparation method of the fireproof coating according to claim 6, wherein in the step 1, the rotation speed of the first stirring is below 1000r/min, and the time of the first stirring is 10min to 20 min; in the step 2, the rotation speed of the second stirring is 1000 r/min-1500 r/min.
8. The preparation method of the fireproof paint according to claim 6, wherein in the step 2, the frequency of the ultrasound is 50KHz to 100 KHz.
9. An antique wood-based hanging plate, which is characterized in that the outer surface of the antique wood-based hanging plate is coated with the fire-retardant coating prepared by the preparation method of any one of claims 6 to 8.
10. The archaized wood-hanging board according to claim 9, wherein the fire-retardant coating is applied by a method,
firstly, adding the fireproof coating into a coating machine, and coating the fireproof coating on the outer surface of the wood hanging plate substrate at one time by using the coating machine; and then drying the wood hanging plate at 60-65 ℃ for more than 4min, and then heating to 70-75 ℃ for curing for more than 2min to obtain the wood hanging plate coated with the fireproof coating.
CN202110126592.1A 2021-01-29 2021-01-29 Fireproof coating, antique wood hanging plate and preparation method thereof Pending CN112795267A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113372747A (en) * 2021-06-10 2021-09-10 北京化工大学 Intrinsic flame-retardant transparent organic silicon fireproof coating and preparation method thereof
CN114260164A (en) * 2021-12-17 2022-04-01 六合峰（天津）科技股份有限公司 Manufacturing process of simulated snow with fireproof and flame-retardant functions
CN116660099A (en) * 2023-07-24 2023-08-29 绵阳新启科技有限公司 Water-based paint fluidity detection system and method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105860740A (en) * 2016-06-08 2016-08-17 重庆大学 Preparation method and application method of fire proofing, water proofing and insect preventing material for historical ancient building
CN106634394A (en) * 2016-10-12 2017-05-10 公安部四川消防研究所 Waterborne transparent fireproof paint for historic buildings and preparation method of waterborne transparent fireproof paint

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105860740A (en) * 2016-06-08 2016-08-17 重庆大学 Preparation method and application method of fire proofing, water proofing and insect preventing material for historical ancient building
CN106634394A (en) * 2016-10-12 2017-05-10 公安部四川消防研究所 Waterborne transparent fireproof paint for historic buildings and preparation method of waterborne transparent fireproof paint

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113372747A (en) * 2021-06-10 2021-09-10 北京化工大学 Intrinsic flame-retardant transparent organic silicon fireproof coating and preparation method thereof
CN113372747B (en) * 2021-06-10 2022-04-26 北京化工大学 Intrinsic flame-retardant transparent organic silicon fireproof coating and preparation method thereof
CN114260164A (en) * 2021-12-17 2022-04-01 六合峰（天津）科技股份有限公司 Manufacturing process of simulated snow with fireproof and flame-retardant functions
CN116660099A (en) * 2023-07-24 2023-08-29 绵阳新启科技有限公司 Water-based paint fluidity detection system and method
CN116660099B (en) * 2023-07-24 2023-10-31 绵阳新启科技有限公司 Water-based paint fluidity detection system and method

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