CN109338817A - Composite coating facing paper and preparation method thereof - Google Patents

Composite coating facing paper and preparation method thereof Download PDF

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Publication number
CN109338817A
CN109338817A CN201811472318.4A CN201811472318A CN109338817A CN 109338817 A CN109338817 A CN 109338817A CN 201811472318 A CN201811472318 A CN 201811472318A CN 109338817 A CN109338817 A CN 109338817A
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weight
sio
parts
colloidal sol
coating
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CN109338817B (en
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朱雪男
张发
卢健
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Tianjin Shengshi New Mstar Technology Ltd
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Tianjin Shengshi New Mstar Technology Ltd
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    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/18—Paper- or board-based structures for surface covering
    • D21H27/20—Flexible structures being applied by the user, e.g. wallpaper
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
    • D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
    • D21H23/22—Addition to the formed paper
    • D21H23/52—Addition to the formed paper by contacting paper with a device carrying the material

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  • Silicon Compounds (AREA)
  • Paints Or Removers (AREA)
  • Catalysts (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

The present invention relates to composite coating facing paper and preparation method thereof, the composite coating facing paper includes decorating printing paper, the SiO that is coated on the outside of decorating printing paper2‑ZrO2Collosol coating and the nanometer Al being coated on the outside of the collosol coating of decorating printing paper side2O3Enhance SiO2Collosol coating；The wherein SiO2‑ZrO2The raw material of collosol coating includes: zirconium source mixed liquor, silicon source mixed liquor, 3- aminopropyl triethoxysilane, hydrochloric acid and promotes mixed liquor；The SiO2The raw material of collosol coating includes the ammonium hydroxide of ethyl orthosilicate, γ-methacryloxypropyl trimethoxy silane, dehydrated alcohol, deionized water, hydrochloric acid and 4.5-5.2 parts by weight；The Al2O3Average grain diameter be 15nm-28nm.Compared with prior art, the present invention composite coating facing paper according to an embodiment of the present invention, has excellent wet strength and tensile strength properties, be not related to formaldehyde and phenol, in practical applications, outer layer is without being further added by wear-resistant immersion paper.

Description

Composite coating facing paper and preparation method thereof
Technical field
The invention belongs to field of new materials more particularly to a kind of composite coating facing paper and preparation method thereof.
Background technique
In recent years, face artificial board is widely used in public building and family because of the advantages that its is beautiful and stylish, type is abundant The fields such as finishing.Face artificial board is surface layer abrasion-proof layer, middle layer facing paper and the bottom balance by passing through resin dipping respectively Paper is merged with artificial wooden substrate by hot pressing, i.e. Tetefol laminated flooring.The effect of surface layer abrasion-proof layer is to protect Wear-resisting property, corrosion resistance and moisture-resistance are demonstrate,proved, the effect of middle layer facing paper is to provide beautiful decorative pattern.
Existing facing paper is soaked for dipping glue to decorating printing paper with amino resins such as Lauxite or phenolic resin The processing of stain cladding, is primarily present following deficiency: 1) inevitably containing formaldehyde and phenolic aldehyde, trip is discharged in production and application From formaldehyde and free-phenol, cause damages to environment and human body；2) existing facing paper is due to impregnating resin system and impregnation technology Limitation, production technology is complicated, low efficiency, wastes to the cost of raw material more serious；3) the dipping packet that existing resin system is formed Coating transparency is not high, does not have wear-resisting property, must stick wearing layer in its outer layer, whole clearing degree is caused to further decrease； 4) wet strength of existing facing paper is low, in process of production easily disconnected paper, high production cost.Therefore, how using environmentally friendly material Material system and preparation process significantly improve the same of its transparent performance and wear-resisting property improving the performances such as facing paper intensity and being especially When, transparent performance and the good facing paper of wear-resisting property are prepared, is of great significance.
Summary of the invention
For overcome the deficiencies in the prior art, the present invention provides the preparation of composite coating facing paper and composite coating facing paper Method, present subject matter are as follows:
According to an aspect of the present invention, a kind of composite coating facing paper, including decorating printing paper, it is coated on decorating printing paper The SiO in outside2-ZrO2Collosol coating and the nanometer Al being coated on the outside of the collosol coating of decorating printing paper side2O3Enhance SiO2 Collosol coating；The wherein SiO2-ZrO2The raw material of collosol coating includes: the zirconium source mixed liquor of 100 parts by weight, 102-108 weight Part silicon source mixed liquor, the 3- aminopropyl triethoxysilanes of 2.5-3.9 parts by weight, 8.9-10.2 parts by weight hydrochloric acid and 5.2- The promotion mixed liquor of 5.9 parts by weight；The SiO2The raw material of collosol coating includes the ethyl orthosilicate of 100 parts by weight, 1.5-7.2 γ-methacryloxypropyl trimethoxy silane of parts by weight, the dehydrated alcohol of 12 parts by weight, 39 parts by weight deionization The ammonium hydroxide of water, the hydrochloric acid of 3.2-3.9 parts by weight and 4.5-5.2 parts by weight；The Al2O3Average grain diameter be 15nm-28nm.
The transparency of an exemplary embodiment of the present invention, the composite coating is not less than 91.1%.
An exemplary embodiment of the present invention, the composite coating facing paper are quantitatively not more than 41g/m2, wet strength Not less than 8.21MPa, tensile strength is not less than 19.5MPa, and wear-resisting revolution is not less than 8212 turns, the release of formaldehydeless and phenol.
According to another aspect of the present invention, a kind of preparation method of composite coating facing paper, which comprises
One, SiO2-ZrO2Colloidal sol preparation
At room temperature, tetrabutyl zirconate is dissolved in dehydrated alcohol by ratio 1:10.2-23.1 by weight, configures zirconium source Mixed liquor；Silester is dissolved in dehydrated alcohol by ratio 1:2.9-11.8 by weight, configures silicon source mixed liquor；
The zirconium source mixed liquor of 100 parts by weight and the silicon source mixed liquor of 102-108 parts by weight are sufficiently mixed, are added The 3- aminopropyl triethoxysilane of 2.5-3.9 parts by weight, is stirring evenly and then adding into the hydrochloric acid of 8.9-10.2 parts by weight, and stirring is equal The promotion mixed liquor of 5.2-5.9 parts by weight is added after even；After mixing evenly, 30 minutes are stood, SiO is made2-ZrO2Colloidal sol；
Two, Al2O3Enhance SiO2Colloidal sol preparation
3)Al2O3Reinforced phase modification
Ratio 1:18 by weight is by hydrophobicity gas phase nano Al2O3Powder is added to trimethylolpropane trimethacrylate In, ultrasonic disperse handles 30min under 45 DEG C of constant temperatures, and 80 DEG C of freeze-day with constant temperature processing obtain Modification on Al2O3Powder reinforced phase；
Modified powder is added in dehydrated alcohol by ratio 1:55 by weight, is ultrasonically treated 30min, and Al is made2O3Enhancing Phase alcohol dispersion liquid.
4)SiO2Colloidal sol preparation
At room temperature, by the ethyl orthosilicate of 100 parts by weight, γ-methacryloxypropyl of 1.5-7.2 parts by weight The deionized water of trimethoxy silane, the dehydrated alcohol of 12 parts by weight and 39 parts by weight stirs evenly 20min at 50 DEG C；It is added The hydrochloric acid of 3.2-3.9 parts by weight continues to stir at 60 DEG C, and the ammonium hydroxide of 4.5-5.2 parts by weight, isothermal reaction 2.5h, system is added Obtain SiO2Colloidal sol.
Three, the preparation of composite coating facing paper
5) facing paper pre-processes
Under the conditions of 0.05MPa negative pressure of vacuum and 75 DEG C, drying constant temperature pretreatment is carried out to facing paper, the processing time is 15- 25min；
6)SiO2-ZrO2Collosol coating coating
At a temperature of 55 DEG C, by SiO2-ZrO2Colloidal sol is homogeneously applied on the outside of pretreated facing paper, 80 DEG C of constant temperature Handle 30min；
7)Al2O3Enhance SiO2Colloidal sol coating
By SiO2Colloidal sol is coated in decorating printing paper side SiO2-ZrO2On the outside of collosol coating；
Using air spray finishing by Al2O3Reinforced phase alcohol dispersion liquid is to SiO2Colloidal sol even application, quantity for spray are that SiO2 is molten The 2.8%-6.6% of glue parts by weight；
8) purification process
The facing paper for being coated with collosol coating is placed in the purifying drier for storing dehydrated alcohol, then will purify drying Temperature in device is down to -5 DEG C, is passed through liquid CO2Purification process is carried out, time 30min is handled；
Facing paper after purification process passes through 135 DEG C of drying and processings, storage.
An exemplary embodiment of the present invention, it is described promote mixed liquor by volume ratio be 55:28:17 deionized water, Isopropanol, ammonium hydroxide composition.
The concentration of an exemplary embodiment of the present invention, the hydrochloric acid is 0.2mol/L, and the concentration of the ammonium hydroxide is 0.2mol/L。
An exemplary embodiment of the present invention, the SiO2-ZrO2The coating thickness of colloidal sol is 8-28 μm.
An exemplary embodiment of the present invention, the SiO2The coating thickness of colloidal sol is 2-6 μm.
An exemplary embodiment of the present invention, using air spray finishing by Al2O3Reinforced phase alcohol dispersion liquid is to SiO2It is molten When glue carries out even application, spray distance 125-280mm, spray angle is 60 DEG C.
The present invention passes through SiO2-ZrO2Colloidal sol preparation, Al2O3Enhance SiO2Composite coating facing paper is realized in the preparation of colloidal sol Preparation.Compared with prior art, composite coating facing paper according to an embodiment of the present invention has following substantial advantage: 1) SiO2- ZrO2Colloidal sol and Al2O3Enhance SiO2Colloidal sol is formed by composite coating with excellent transparent performance and wear-resisting property, in reality In, composite coating facing paper outer layer prepared by the present invention is without being further added by wear-resistant immersion paper；2)SiO2-ZrO2Colloidal sol and Al2O3Enhance SiO2Colloidal sol is formed by composite coating with excellent wet strength and tensile strength properties, significantly improves facing paper Performance in processing and application installation process；3)SiO2-ZrO2Colloidal sol and Al2O3Enhance SiO2Colloidal sol is formed by composite coating It is not related to formaldehyde and phenol, will not volatilize free aldehyde and free phenol in production and actual application, completely environmental protection.
Specific embodiment
To keep technical solution of the present invention and advantage clearer, the present invention is made into one by following specific embodiment Step detailed description.Obviously, described embodiments are some of the embodiments of the present invention, instead of all the embodiments.Based on this Embodiment in invention, those of ordinary skill in the art are obtained every other without making creative work Embodiment shall fall within the protection scope of the present invention.
Embodiment 1: the preparation of composite coating facing paper
One, SiO2-ZrO2Colloidal sol preparation
At room temperature, tetrabutyl zirconate is dissolved in dehydrated alcohol by ratio 1:10.2 by weight, the mixing of configuration zirconium source Liquid；Silester is dissolved in dehydrated alcohol by ratio 1:2.9 by weight, configures silicon source mixed liquor；
The zirconium source mixed liquor of 100 parts by weight and the silicon source mixed liquor of 102 parts by weight are sufficiently mixed, 2.5 weights are added The 3- aminopropyl triethoxysilane for measuring part, is stirring evenly and then adding into the hydrochloric acid of the 0.2mol/L of 8.9 parts by weight, after mixing evenly Be added the promotion mixed liquor of 5.2 parts by weight, promote mixed liquor by deionized water that volume ratio is 55:28:17, isopropanol, The ammonium hydroxide of 0.2mol/L forms；After mixing evenly, 30 minutes are stood, SiO is made2-ZrO2Colloidal sol；
Two, Al2O3Enhance SiO2Colloidal sol preparation
1)Al2O3Reinforced phase modification
Ratio 1:18 by weight is by hydrophobicity gas phase nano Al2O3Powder is added to trimethylolpropane trimethacrylate In, ultrasonic disperse handles 30min under 45 DEG C of constant temperatures, and 80 DEG C of freeze-day with constant temperature processing obtain Modification on Al2O3Powder reinforced phase；
Modified powder is added in dehydrated alcohol by ratio 1:55 by weight, is ultrasonically treated 30min, and Al is made2O3Enhancing Phase alcohol dispersion liquid.
2)SiO2Colloidal sol preparation
At room temperature, by the ethyl orthosilicate of 100 parts by weight, γ-methacryloxypropyl front three of 1.5 parts by weight The deionized water of oxysilane, the dehydrated alcohol of 12 parts by weight and 39 parts by weight stirs evenly 20min at 50 DEG C；It is added 3.2 The hydrochloric acid of the 0.2mol/L of parts by weight continues to stir at 60 DEG C, and the ammonium hydroxide of the 0.2mol/L of 4.5 parts by weight is added, and constant temperature is anti- 2.5h is answered, SiO is made2Colloidal sol.
Three, the preparation of composite coating facing paper
1) facing paper pre-processes
Under the conditions of 0.05MPa negative pressure of vacuum and 75 DEG C, drying constant temperature pretreatment is carried out to facing paper, the processing time is 25min；
2)SiO2-ZrO2Collosol coating coating
At a temperature of 55 DEG C, by SiO2-ZrO2Colloidal sol is homogeneously applied on the outside of pretreated facing paper, coating thickness It is 8 μm, 80 DEG C of constant temperature handle 30min；
3)Al2O3Enhance SiO2Colloidal sol coating
By SiO2Colloidal sol is coated in decorating printing paper side SiO2-ZrO2On the outside of collosol coating, coating thickness is 2 μm；
Using air spray finishing by Al2O3Reinforced phase alcohol dispersion liquid is to SiO2Colloidal sol even application, spray distance are 125mm, spray angle are 60 DEG C, quantity for spray SiO2The 2.8% of sol weight part；
4) purification process
The facing paper for being coated with collosol coating is placed in the purifying drier for storing dehydrated alcohol, then will purify drying Temperature in device is down to -5 DEG C, is passed through liquid CO2Purification process is carried out, time 30min is handled；
Facing paper after purification process passes through 135 DEG C of drying and processings, storage.
Embodiment 2: the preparation of composite coating facing paper
One, SiO2-ZrO2Colloidal sol preparation
At room temperature, tetrabutyl zirconate is dissolved in dehydrated alcohol by ratio 1:11.8 by weight, the mixing of configuration zirconium source Liquid；Silester is dissolved in dehydrated alcohol by ratio 1:3.5 by weight, configures silicon source mixed liquor；
The zirconium source mixed liquor of 100 parts by weight and the silicon source mixed liquor of 103 parts by weight are sufficiently mixed, 2.8 weights are added The 3- aminopropyl triethoxysilane for measuring part, is stirring evenly and then adding into the hydrochloric acid of the 0.2mol/L of 9.1 parts by weight, after mixing evenly Be added the promotion mixed liquor of 5.3 parts by weight, promote mixed liquor by deionized water that volume ratio is 55:28:17, isopropanol, The ammonium hydroxide of 0.2mol/L forms；After mixing evenly, 30 minutes are stood, SiO is made2-ZrO2Colloidal sol；
Two, Al2O3Enhance SiO2Colloidal sol preparation
1)Al2O3Reinforced phase modification
Ratio 1:18 by weight is by hydrophobicity gas phase nano Al2O3Powder is added to trimethylolpropane trimethacrylate In, ultrasonic disperse handles 30min under 45 DEG C of constant temperatures, and 80 DEG C of freeze-day with constant temperature processing obtain Modification on Al2O3Powder reinforced phase；
Modified powder is added in dehydrated alcohol by ratio 1:55 by weight, is ultrasonically treated 30min, and Al is made2O3Enhancing Phase alcohol dispersion liquid.
2)SiO2Colloidal sol preparation
At room temperature, by the ethyl orthosilicate of 100 parts by weight, γ-methacryloxypropyl front three of 2.8 parts by weight The deionized water of oxysilane, the dehydrated alcohol of 12 parts by weight and 39 parts by weight stirs evenly 20min at 50 DEG C；It is added 3.4 The hydrochloric acid of the 0.2mol/L of parts by weight continues to stir at 60 DEG C, and the ammonium hydroxide of the 0.2mol/L of 4.5 parts by weight is added, and constant temperature is anti- 2.5h is answered, SiO is made2Colloidal sol.
Three, the preparation of composite coating facing paper
1) facing paper pre-processes
Under the conditions of 0.05MPa negative pressure of vacuum and 75 DEG C, drying constant temperature pretreatment is carried out to facing paper, the processing time is 25min；
2)SiO2-ZrO2Collosol coating coating
At a temperature of 55 DEG C, by SiO2-ZrO2Colloidal sol is homogeneously applied on the outside of pretreated facing paper, coating thickness It is 12 μm, 80 DEG C of constant temperature handle 30min；
3)Al2O3Enhance SiO2Colloidal sol coating
By SiO2Colloidal sol is coated in decorating printing paper side SiO2-ZrO2On the outside of collosol coating, coating thickness is 3 μm；
Using air spray finishing by Al2O3Reinforced phase alcohol dispersion liquid is to SiO2Colloidal sol even application, spray distance are 135mm, spray angle are 60 DEG C, quantity for spray SiO2The 3.3% of sol weight part；
4) purification process
The facing paper for being coated with collosol coating is placed in the purifying drier for storing dehydrated alcohol, then will purify drying Temperature in device is down to -5 DEG C, is passed through liquid CO2Purification process is carried out, time 30min is handled；
Facing paper after purification process passes through 135 DEG C of drying and processings, storage.
Embodiment 3: the preparation of composite coating facing paper
One, SiO2-ZrO2Colloidal sol preparation
At room temperature, tetrabutyl zirconate is dissolved in dehydrated alcohol by ratio 1:15.2 by weight, the mixing of configuration zirconium source Liquid；Silester is dissolved in dehydrated alcohol by ratio 1:5.8 by weight, configures silicon source mixed liquor；
The zirconium source mixed liquor of 100 parts by weight and the silicon source mixed liquor of 105 parts by weight are sufficiently mixed, 2.9 weights are added The 3- aminopropyl triethoxysilane for measuring part, is stirring evenly and then adding into the hydrochloric acid of the 0.2mol/L of 9.2 parts by weight, after mixing evenly Be added the promotion mixed liquor of 5.5 parts by weight, promote mixed liquor by deionized water that volume ratio is 55:28:17, isopropanol, The ammonium hydroxide of 0.2mol/L forms；After mixing evenly, 30 minutes are stood, SiO is made2-ZrO2Colloidal sol；
Two, Al2O3Enhance SiO2Colloidal sol preparation
1)Al2O3Reinforced phase modification
Ratio 1:18 by weight is by hydrophobicity gas phase nano Al2O3Powder is added to trimethylolpropane trimethacrylate In, ultrasonic disperse handles 30min under 45 DEG C of constant temperatures, and 80 DEG C of freeze-day with constant temperature processing obtain Modification on Al2O3Powder reinforced phase；
Modified powder is added in dehydrated alcohol by ratio 1:55 by weight, is ultrasonically treated 30min, and Al is made2O3Enhancing Phase alcohol dispersion liquid.
2)SiO2Colloidal sol preparation
At room temperature, by the ethyl orthosilicate of 100 parts by weight, γ-methacryloxypropyl front three of 3.3 parts by weight The deionized water of oxysilane, the dehydrated alcohol of 12 parts by weight and 39 parts by weight stirs evenly 20min at 50 DEG C；It is added 3.5 The hydrochloric acid of the 0.2mol/L of parts by weight continues to stir at 60 DEG C, and the ammonium hydroxide of the 0.2mol/L of 4.5 parts by weight is added, and constant temperature is anti- 2.5h is answered, SiO is made2Colloidal sol.
Three, the preparation of composite coating facing paper
1) facing paper pre-processes
Under the conditions of 0.05MPa negative pressure of vacuum and 75 DEG C, drying constant temperature pretreatment is carried out to facing paper, the processing time is 25min；
2)SiO2-ZrO2Collosol coating coating
At a temperature of 55 DEG C, by SiO2-ZrO2Colloidal sol is homogeneously applied on the outside of pretreated facing paper, coating thickness It is 15 μm, 80 DEG C of constant temperature handle 30min；
3)Al2O3Enhance SiO2Colloidal sol coating
By SiO2Colloidal sol is coated in decorating printing paper side SiO2-ZrO2On the outside of collosol coating, coating thickness is 5 μm；
Using air spray finishing by Al2O3Reinforced phase alcohol dispersion liquid is to SiO2Colloidal sol even application, spray distance are 210mm, spray angle are 60 DEG C, quantity for spray SiO2The 3.5% of sol weight part；
4) purification process
The facing paper for being coated with collosol coating is placed in the purifying drier for storing dehydrated alcohol, then will purify drying Temperature in device is down to -5 DEG C, is passed through liquid CO2Purification process is carried out, time 30min is handled；
Facing paper after purification process passes through 135 DEG C of drying and processings, storage.
Embodiment 4: the preparation of composite coating facing paper
One, SiO2-ZrO2Colloidal sol preparation
At room temperature, tetrabutyl zirconate is dissolved in dehydrated alcohol by ratio 1:18.5 by weight, the mixing of configuration zirconium source Liquid；Silester is dissolved in dehydrated alcohol by ratio 1:9.5 by weight, configures silicon source mixed liquor；
The zirconium source mixed liquor of 100 parts by weight and the silicon source mixed liquor of 105 parts by weight are sufficiently mixed, 3.5 weights are added The 3- aminopropyl triethoxysilane for measuring part, is stirring evenly and then adding into the hydrochloric acid of the 0.2mol/L of 9.5 parts by weight, after mixing evenly Be added the promotion mixed liquor of 5.6 parts by weight, promote mixed liquor by deionized water that volume ratio is 55:28:17, isopropanol, The ammonium hydroxide of 0.2mol/L forms；After mixing evenly, 30 minutes are stood, SiO is made2-ZrO2Colloidal sol；
Two, Al2O3Enhance SiO2Colloidal sol preparation
1)Al2O3Reinforced phase modification
Ratio 1:18 by weight is by hydrophobicity gas phase nano Al2O3Powder is added to trimethylolpropane trimethacrylate In, ultrasonic disperse handles 30min under 45 DEG C of constant temperatures, and 80 DEG C of freeze-day with constant temperature processing obtain Modification on Al2O3Powder reinforced phase；
Modified powder is added in dehydrated alcohol by ratio 1:55 by weight, is ultrasonically treated 30min, and Al is made2O3Enhancing Phase alcohol dispersion liquid.
2)SiO2Colloidal sol preparation
At room temperature, by the ethyl orthosilicate of 100 parts by weight, γ-methacryloxypropyl front three of 6.8 parts by weight The deionized water of oxysilane, the dehydrated alcohol of 12 parts by weight and 39 parts by weight stirs evenly 20min at 50 DEG C；It is added 3.6 The hydrochloric acid of the 0.2mol/L of parts by weight continues to stir at 60 DEG C, and the ammonium hydroxide of the 0.2mol/L of 4.8 parts by weight is added, and constant temperature is anti- 2.5h is answered, SiO is made2Colloidal sol.
Three, the preparation of composite coating facing paper
1) facing paper pre-processes
Under the conditions of 0.05MPa negative pressure of vacuum and 75 DEG C, drying constant temperature pretreatment is carried out to facing paper, the processing time is 25min；
2)SiO2-ZrO2Collosol coating coating
At a temperature of 55 DEG C, by SiO2-ZrO2Colloidal sol is homogeneously applied on the outside of pretreated facing paper, coating thickness It is 22 μm, 80 DEG C of constant temperature handle 30min；
3)Al2O3Enhance SiO2Colloidal sol coating
By SiO2Colloidal sol is coated in decorating printing paper side SiO2-ZrO2On the outside of collosol coating, coating thickness is 5 μm；
Using air spray finishing by Al2O3Reinforced phase alcohol dispersion liquid is to SiO2Colloidal sol even application, spray distance are 250mm, spray angle are 60 DEG C, quantity for spray SiO2The 5.2% of sol weight part；
4) purification process
The facing paper for being coated with collosol coating is placed in the purifying drier for storing dehydrated alcohol, then will purify drying Temperature in device is down to -5 DEG C, is passed through liquid CO2Purification process is carried out, time 30min is handled；
Facing paper after purification process passes through 135 DEG C of drying and processings, storage.
Embodiment 5: the preparation of composite coating facing paper
One, SiO2-ZrO2Colloidal sol preparation
At room temperature, tetrabutyl zirconate is dissolved in dehydrated alcohol by ratio 1:23.1 by weight, the mixing of configuration zirconium source Liquid；Silester is dissolved in dehydrated alcohol by ratio 1:11.8 by weight, configures silicon source mixed liquor；
The zirconium source mixed liquor of 100 parts by weight and the silicon source mixed liquor of 108 parts by weight are sufficiently mixed, 3.9 weights are added The 3- aminopropyl triethoxysilane for measuring part, is stirring evenly and then adding into the hydrochloric acid of the 0.2mol/L of 10.2 parts by weight, stirs evenly Be added the promotion mixed liquor of 5.9 parts by weight afterwards, promote mixed liquor by deionized water that volume ratio is 55:28:17, isopropanol, The ammonium hydroxide of 0.2mol/L forms；After mixing evenly, 30 minutes are stood, SiO is made2-ZrO2Colloidal sol；
Two, Al2O3Enhance SiO2Colloidal sol preparation
1)Al2O3Reinforced phase modification
Ratio 1:18 by weight is by hydrophobicity gas phase nano Al2O3Powder is added to trimethylolpropane trimethacrylate In, ultrasonic disperse handles 30min under 45 DEG C of constant temperatures, and 80 DEG C of freeze-day with constant temperature processing obtain Modification on Al2O3Powder reinforced phase；
Modified powder is added in dehydrated alcohol by ratio 1:55 by weight, is ultrasonically treated 30min, and Al is made2O3Enhancing Phase alcohol dispersion liquid.
2)SiO2Colloidal sol preparation
At room temperature, by the ethyl orthosilicate of 100 parts by weight, γ-methacryloxypropyl front three of 7.2 parts by weight The deionized water of oxysilane, the dehydrated alcohol of 12 parts by weight and 39 parts by weight stirs evenly 20min at 50 DEG C；It is added 3.9 The hydrochloric acid of the 0.2mol/L of parts by weight continues to stir at 60 DEG C, and the ammonium hydroxide of the 0.2mol/L of 5.2 parts by weight is added, and constant temperature is anti- 2.5h is answered, SiO is made2Colloidal sol.
Three, the preparation of composite coating facing paper
1) facing paper pre-processes
Under the conditions of 0.05MPa negative pressure of vacuum and 75 DEG C, drying constant temperature pretreatment is carried out to facing paper, the processing time is 25min；
2)SiO2-ZrO2Collosol coating coating
At a temperature of 55 DEG C, by SiO2-ZrO2Colloidal sol is homogeneously applied on the outside of pretreated facing paper, coating thickness It is 28 μm, 80 DEG C of constant temperature handle 30min；
3)Al2O3Enhance SiO2Colloidal sol coating
By SiO2Colloidal sol is coated in decorating printing paper side SiO2-ZrO2On the outside of collosol coating, coating thickness is 6 μm；
Using air spray finishing by Al2O3Reinforced phase alcohol dispersion liquid is to SiO2Colloidal sol even application, spray distance are 280mm, spray angle are 60 DEG C, quantity for spray SiO2The 6.6% of sol weight part；
4) purification process
The facing paper for being coated with collosol coating is placed in the purifying drier for storing dehydrated alcohol, then will purify drying Temperature in device is down to -5 DEG C, is passed through liquid CO2Purification process is carried out, time 30min is handled；
Facing paper after purification process passes through 135 DEG C of drying and processings, storage.
Embodiment 6:
According to composite coating facing paper prepared by embodiment 1-5, specimen coding is respectively A1, A2, A3, A4 and A5；Using The facing paper that the facing paper and phenolic resin of typical urea resin dipping in the prior art impregnate as a comparison case, compile by sample Number be respectively D1 and D2.
It is quantitatively detected according to GB/T 451.2-2002 " paper and the quantitative measurement of cardboard "；According to GB/T 2679.1-2013 " the measurement diffusing reflection method of paper transparency " detects its transparency；According to GB/T 465.2-2008 " paper With the measurement of tensile strength after cardboard immersion " its wet strength is detected；According to GB/T 12914-2008, " paper and cardboard are anti- The measurement of Zhang Qiangdu " its tensile strength is detected；According to GB/T 17657-2013, " wood-based plate and face artificial board are physical and chemical Method for testing performance " its wear-resisting property is detected；According to GB 18580-2017 " indoor decorating and refurnishing materials wood-based plate and Form aldehyde release is limited the quantity in its product " burst size of methanal after its 180 days is detected；According to GB/T 31762-2015 " wooden material Phenol release amount measures small-sized release method in material and its product " its phenol release amount is detected；Its testing result is shown in Table 1。
Table 1
Seen from table 1, the composite coating facing paper of inventive embodiments preparation is compared with prior art, wet significantly improving Under the premise of intensity, tensile strength, improve transparency and quantify, while is long-acting without free aldehyde and free phenolic group, long-term It will not cause damages to human body and environment in application process.
Above-described specific embodiment has carried out further the purpose of the present invention, technical scheme and beneficial effects It is described in detail, it should be understood that being not intended to limit the present invention the foregoing is merely a specific embodiment of the invention Protection scope, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should all include Within protection scope of the present invention.

Claims (9)

1. a kind of composite coating facing paper, which is characterized in that the composite coating facing paper includes decorating printing paper, is coated on dress Adorn the SiO on the outside of printing paper2-ZrO2Collosol coating and it is coated on decorating printing paper side SiO2-ZrO2On the outside of collosol coating Nanometer Al2O3Enhance SiO2Collosol coating；The wherein SiO2-ZrO2The raw material of collosol coating includes: the zirconium source of 100 parts by weight Mixed liquor, the silicon source mixed liquor of 102-108 parts by weight, 2.5-3.9 parts by weight 3- aminopropyl triethoxysilane, 8.9-10.2 The hydrochloric acid of parts by weight and the promotion mixed liquor of 5.2-5.9 parts by weight；The SiO2The raw material of collosol coating includes 100 parts by weight Ethyl orthosilicate, γ-methacryloxypropyl trimethoxy silane of 1.5-7.2 parts by weight, the anhydrous second of 12 parts by weight Alcohol, the deionized water of 39 parts by weight, the hydrochloric acid of 3.2-3.9 parts by weight and 4.5-5.2 parts by weight ammonium hydroxide；The Al2O3Be averaged Partial size is 15nm-28nm.
2. composite coating facing paper according to claim 1, which is characterized in that the transparency of composite coating is not less than 91.1%.
3. composite coating facing paper according to claim 1 to 2, which is characterized in that the composite coating facing paper Quantitatively it is not more than 41g/m2, for wet strength not less than 8.21MPa, tensile strength is not less than 19.5MPa, and wear-resisting revolution is not less than 8212 Turn.
4. a kind of preparation method of composite coating facing paper, which is characterized in that the described method includes:
One, SiO2-ZrO2Colloidal sol preparation
At room temperature, tetrabutyl zirconate is dissolved in dehydrated alcohol by ratio 1:10.2-23.1 by weight, the mixing of configuration zirconium source Liquid；Silester is dissolved in dehydrated alcohol by ratio 1:2.9-11.8 by weight, configures silicon source mixed liquor；
The zirconium source mixed liquor of 100 parts by weight and the silicon source mixed liquor of 102-108 parts by weight are sufficiently mixed, 2.5- is added The 3- aminopropyl triethoxysilane of 3.9 parts by weight, is stirring evenly and then adding into the hydrochloric acid of 8.9-10.2 parts by weight, after mixing evenly The promotion mixed liquor of 5.2-5.9 parts by weight is added；After mixing evenly, 30 minutes are stood, SiO is made2-ZrO2Colloidal sol；
Two, Al2O3Enhance SiO2Colloidal sol preparation
1)Al2O3Reinforced phase modification
Ratio 1:18 by weight is by hydrophobicity gas phase nano Al2O3Powder is added in trimethylolpropane trimethacrylate, and 45 Ultrasonic disperse handles 30min under DEG C constant temperature, and 80 DEG C of freeze-day with constant temperature processing obtain Modification on Al2O3Powder reinforced phase；
Modified powder is added in dehydrated alcohol by ratio 1:55 by weight, is ultrasonically treated 30min, and Al is made2O3Reinforced phase second Alcohol dispersion liquid；
2)SiO2Colloidal sol preparation
At room temperature, by the ethyl orthosilicate of 100 parts by weight, γ-methacryloxypropyl front three of 1.5-7.2 parts by weight The deionized water of oxysilane, the dehydrated alcohol of 12 parts by weight and 39 parts by weight stirs evenly 20min at 50 DEG C；3.2- is added The hydrochloric acid of 3.9 parts by weight continues to stir at 60 DEG C, and the ammonium hydroxide of 4.5-5.2 parts by weight is added, and isothermal reaction 2.5h is made SiO2Colloidal sol；
Three, the preparation of composite coating facing paper
1) facing paper pre-processes
Under the conditions of 0.05MPa negative pressure of vacuum and 75 DEG C, drying constant temperature pretreatment is carried out to facing paper, the processing time is 15- 25min；
2)SiO2-ZrO2Collosol coating coating
At a temperature of 55 DEG C, by SiO2-ZrO2Colloidal sol is homogeneously applied on the outside of pretreated facing paper, 80 DEG C of constant temperature processing 30min；
3)Al2O3Enhance SiO2Colloidal sol coating
By SiO2Colloidal sol is coated in decorating printing paper side SiO2-ZrO2On the outside of collosol coating；
Using air spray finishing by Al2O3Reinforced phase alcohol dispersion liquid is to SiO2Colloidal sol even application, quantity for spray are SiO2 colloidal sol weight Measure the 2.8%-6.6% of part；
4) purification process
The facing paper for being coated with collosol coating is placed in the purifying drier for storing dehydrated alcohol, then will purify in drier Temperature be down to -5 DEG C, be passed through liquid CO2Purification process is carried out, time 30min is handled；
Facing paper after purification process passes through 135 DEG C of drying and processings, storage.
5. the preparation method according to claim 4, which is characterized in that the promotion mixed liquor is 55:28:17 by volume ratio Deionized water, isopropanol, ammonium hydroxide composition.
6. the preparation method according to claim 4, which is characterized in that the concentration of the hydrochloric acid is 0.2mol/L, the ammonia The concentration of water is 0.2mol/L.
7. the preparation method according to claim 4, which is characterized in that the SiO2-ZrO2The coating thickness of colloidal sol is 8-28 μm。
8. the preparation method according to claim 4, which is characterized in that the SiO2The coating thickness of colloidal sol is 2-6 μm.
9. the preparation method according to claim 4, which is characterized in that use air spray finishing by Al2O3Reinforced phase ethyl alcohol point Dispersion liquid is to SiO2When colloidal sol carries out even application, spray distance 125-280mm, spray angle is 60 DEG C.
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