CN109895213A - A kind of denseness sheet material and preparation method thereof of anti-mildew attached decorating film - Google Patents
A kind of denseness sheet material and preparation method thereof of anti-mildew attached decorating film Download PDFInfo
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- CN109895213A CN109895213A CN201910240482.0A CN201910240482A CN109895213A CN 109895213 A CN109895213 A CN 109895213A CN 201910240482 A CN201910240482 A CN 201910240482A CN 109895213 A CN109895213 A CN 109895213A
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Abstract
The invention discloses a kind of denseness sheet material of anti-mildew attached decorating film, including density board and decorating film, decorating film is attached to the surface of density board, described with a thickness of 0.05-0.07mm, the density board with a thickness of 0.5-1.8cm；Density board includes following components according to mass fraction: 80-100 parts of wheat stalk, 30-50 parts of bamboo and 20-50 parts of sawdust；Decorating film includes following components according to mass fraction: 60-70 parts of resin, 20-30 parts of polyester polyol, 10-20 parts of acetone, 5-10 parts of zinc stearate, 5-10 parts of nanometer calcium carbonate, 1-3 parts of ammonium polyphosphate, 1-3 parts of soybean oil, 1-3 parts of neopelex, 0.5-1 parts of toluene di-isocyanate(TDI), 0.1-0.2 parts of ethyl acetate, 0.05-0.1 parts of trimethylolpropane, 3-4 parts of diethylene glycol dibenzoate, 1-2 parts of defoaming agent；The denseness sheet material of anti-mildew attached decorating film in the present invention has better mildew resistance by pretreated plate raw material, furthermore joined fire proofing in decorating film, and formaldehyde content is low, therefore the plate safety is high.
Description
Technical field
The invention belongs to environment-friendly materials technical field, in particular to the denseness sheet material of a kind of anti-mildew attached decorating film and its
Preparation method.
Background technique
It include core-board, glued board, decoration panel, density board, integrated timber, particieboard, fire-proof plate, stone in dalle
Cream plate, PVC board, aluminum-pinch, aluminium-plastic panel, three dimensional panel etc..Its medium-density plate divides medium density fibre board (MDF) (medium-density plate) and hard fine
Plate (high-density plate) etc. is tieed up, density is in 450-800 kg/m3Be medium density fibre board (MDF), density is in 800kg/m3Above is hard
Matter fiberboard.Density board be using plant wood-fibred as primary raw material, through defibrator process, mat formation, the processes such as hot-forming are made, however by
In density board primary raw material be plant wood-fibred, therefore the finished product prepared inevitably can exist easily mildew the case where etc..
In numerous dalles, the presence of unavoidable formaldehyde, but on October 27th, 2017, world health group
In the carcinogenic substance inventory for knitting international cancer research institution's announcement, formaldehyde is placed in a kind of carcinogenic substance list, formaldehyde is strong to human body
Health has very big injury.
Formaldehyde, chemical formula HCHO or CH2O, molecular weight 30.03, also known as formaldehyde.It is colourless, to the irritating work such as human eye, nose
With.Air=1 gas relative density 1.067(), 0.815g/cm3(-20 DEG C of fluid density).- 92 DEG C of fusing point, -19.5 DEG C of boiling point.
Soluble easily in water and ethyl alcohol.The concentration of aqueous solution reaches as high as 55%, and usually 40%, referred to as formalin are commonly called as formalin
(formalin), it is the colourless liquid of irritating smell, there is strong reducing property, especially in alkaline solution, reducing power is more
By force.It can burn, steam and air form explosive mixture, explosion limit 7%-73%(volume).About 300 DEG C of burning point.It can be by first
Alcohol dehydrogenation or oxidation under the metal catalytics such as silver, copper are made, and can also separate from the oxidation product of hydro carbons.It can be used as phenolic aldehyde tree
The raw material of rouge, Lauxite, polyvinyl, methenamine, pentaerythrite, dyestuff, pesticide and disinfectant etc..
Therefore, the reduction of content of formaldehyde is a urgent problem in ornament materials, additionally due to density board plate
The property of material raw material itself leads to density board to corrode mildew, therefore also needs to solve the problems, such as that density board is anti-mildew.
Summary of the invention
The present invention provides a kind of denseness sheet material and preparation method thereof of anti-mildew attached decorating film, in order to solve the prior art
The problem that middle plate easily goes mouldy and content of formaldehyde is high.
To achieve the above object, the technical solution adopted by the present invention are as follows:
A kind of denseness sheet material of anti-mildew attached decorating film, including density board and decorating film, the decorating film are attached to density board
Surface, it is described with a thickness of 0.05-0.07mm, the density board with a thickness of 0.5-1.8cm.
Further, the density board includes following components according to mass fraction: 80-100 parts of wheat stalk, bamboo 30-
50 parts and sawdust 20-50 parts.
Further, the decorating film includes following components according to mass fraction: 60-70 parts of resin, polyester polyol 20-
30 parts, 10-20 parts of acetone, 5-10 parts of zinc stearate, 5-10 parts of nanometer calcium carbonate, 1-3 parts of ammonium polyphosphate, 1-3 parts of soybean oil, ten
1-3 parts of dialkyl benzene sulfonic acids sodium, 0.5-1 parts of toluene di-isocyanate(TDI), 0.1-0.2 parts of ethyl acetate, trimethylolpropane 0.05-
0.1 part, 3-4 parts of diethylene glycol dibenzoate, 1-2 parts of defoaming agent.
A kind of preparation method of the denseness sheet material of anti-mildew attached decorating film, comprising the following steps:
The preparation of step 1, density board, comprising the following steps:
Step 11, the section that wheat stalk, bamboo are cut to 1-3cm, then be placed in pulverizer smash at partial size be 0.5-
The coarse granule of 1mm, sieving；
Coarse granule is put into hot steam together with sawdust and steams 3-5min by step 12, dries extremely at a temperature of 130-150 DEG C
Moisture content is 30-50%
Step 13 mixes the coarse granule after drying with sawdust, then is placed in and is ground into partial size in pulverizer as 0.1-0.3mm's
Fine grained, sieving；
Step 13, the sieving for obtaining step 12 are placed in the mixed liquor of sodium hydroxide and sodium resinate and stand 0.5-1h, mistake
Extra moisture is filtered off, product A is obtained,
Step 14, the Lauxite that product A mass 1% is added in product A, the molar ratio of urea and formaldehyde is in Lauxite
1:0.05；
Mixture obtained in step 14 is placed in mold by step 15, and at pressure 20-200MPa, pressure stabilizing 3-10min is obtained
To density board；
The preparation of step 2, decorating film liquid, comprising the following steps:
Step 21 takes resin, polyester polyol, zinc stearate, nanometer calcium carbonate, ammonium polyphosphate, soybean oil according to said ratio
It is added with neopelex into the reaction kettle added with acetone, 10-20min is stirred at 30-50 turns/min, with 8-
The heating rate of 10 DEG C/min is warming up to 50-60 DEG C, adds toluene di-isocyanate(TDI) and ethyl acetate, turns/min in 30-50
Lower stirring 3-5s, then trimethylolpropane is added dropwise with 5 drops/s speed, 70-80 is warming up to the heating rate of 8-10 DEG C/min
DEG C, temperature 30-60s is kept, diethylene glycol dibenzoate and defoaming agent are added, keeping temperature is 70-80 DEG C, and in 10-
30-50min is stirred under 20 turns/min, cooled to room temperature obtains decorating film liquid；
Decorating film is attached to density plate surface by step 3: the decorating film liquid that step 2 obtains is uniformly sprayed in density board
Surface, spray 3-5 times.
Further, before the step 1, density board pre-treatment of raw material is carried out, comprising the following steps:
Step i, maceration extract is prepared, Cu(OH is taken)21-3g、HF2-5ml、H2O210-20ml, 75% ethyl alcohol 10-20ml successively add
Enter in the water of 100ml, and stirs evenly；
Step ii, wheat stalk and bamboo are placed in maceration extract, are warming up to 60 DEG C with the speed of 1-3 DEG C/min, keep the temperature
10-20min is spent, then sawdust is added thereto, is stirred evenly, is warming up to 60 DEG C again with the speed of 1-3 DEG C/min, keeping should
Temperature 5-10min,
Step iii, wheat stalk, bamboo and sawdust are taken out and is placed in 2-5min in 100-120 DEG C of environment, then with 8-10 DEG C/min
Heating rate be warming up to 150-180 DEG C, keep temperature 1-2h,
Step iiii, then wheat stalk, bamboo and sawdust are naturally cooling to room temperature, for use.
Further, in the step 13, sodium hydroxide and sodium resinate mass ratio are 1:1, and the concentration of the mixed liquor
It is 1%.
Further, in the step 2, spraying is spaced 10-30min every time.
Compared with prior art, the invention has the following advantages:
The denseness sheet material of anti-mildew attached decorating film in the present invention has preferably mould proof by pretreated plate raw material
Property, it furthermore joined fire proofing in decorating film, and formaldehyde content is low, therefore the plate safety is high.
Specific embodiment
Below with reference to embodiment, the present invention will be further explained.
Embodiment 1
A kind of denseness sheet material of anti-mildew attached decorating film, including density board and decorating film, the decorating film are attached to density board
Surface, it is described with a thickness of 0.05mm, the density board with a thickness of 0.5cm.
The density board includes following components according to mass fraction: 80 parts of wheat stalk, 30 parts of bamboo and 20 parts of sawdust.
The decorating film includes following components according to mass fraction: 60 parts of resin, 20 parts of polyester polyol, 100 parts of acetone,
5 parts of zinc stearate, 5 parts of nanometer calcium carbonate, 1 part of ammonium polyphosphate, 1 part of soybean oil, 1 part of neopelex, toluene two are different
0.5 part of cyanate, 0.1 part of ethyl acetate, 0.05 part of trimethylolpropane, 3 parts of diethylene glycol dibenzoate, 1 part of defoaming agent.
A kind of preparation method of the denseness sheet material of anti-mildew attached decorating film, comprising the following steps:
Before step 1, density board pre-treatment of raw material is carried out, comprising the following steps:
Step i, maceration extract is prepared, Cu(OH is taken)21g、HF2ml、H2O210ml, 75% ethyl alcohol 10ml sequentially add the water of 100ml
In, and stir evenly；
Step ii, wheat stalk and bamboo are placed in maceration extract, are warming up to 60 DEG C with the speed of 1 DEG C/min, keep the temperature
Then sawdust is added thereto by 10min, stir evenly, and is warming up to 60 DEG C again with the speed of 1 DEG C/min, keeps the temperature
5min,
Step iii, wheat stalk, bamboo and sawdust are taken out and is placed in 2min in 100 DEG C of environment, then with the heating speed of 8 DEG C/min
Degree is warming up to 150 DEG C, keeps temperature 1h,
Step iiii, then wheat stalk, bamboo and sawdust are naturally cooling to room temperature, for use.
The preparation of step 1, density board, comprising the following steps:
Step 11, the section that wheat stalk, bamboo are cut to 1cm, then be placed in pulverizer and smash into partial size as 0.5mm's
Coarse granule, sieving；
Coarse granule is put into hot steam together with sawdust and steams 3min by step 12, dries at a temperature of 130 DEG C to moisture content
For 30-50%
Step 13 mixes the coarse granule after drying with sawdust, then is placed in partial size is ground into pulverizer as 0.1mm thin
Grain, sieving；
Step 13, the sieving for obtaining step 12 are placed in the mixed liquor of sodium hydroxide and sodium resinate and stand 0.5h, filtering
Extra moisture is removed, obtains product A, the sodium hydroxide and sodium resinate mass ratio are 1:1, and the concentration of the mixed liquor is 1%
Step 14, the Lauxite that product A mass 1% is added in product A, the molar ratio of urea and formaldehyde is in Lauxite
1:0.05；
Mixture obtained in step 14 is placed in mold by step 15, and at pressure 20MPa, pressure stabilizing 3min obtains density
Plate；
The preparation of step 2, decorating film liquid, comprising the following steps:
Step 21 takes resin, polyester polyol, zinc stearate, nanometer calcium carbonate, ammonium polyphosphate, soybean oil according to said ratio
It is added with neopelex into the reaction kettle added with acetone, 10min is stirred at 30 turns/min, with 8 DEG C/min
Heating rate be warming up to 50 DEG C, add toluene di-isocyanate(TDI) and ethyl acetate, stir 3s, then at 30 turns/min with 5
Trimethylolpropane is added dropwise in drop/s speed, is warming up to 70 DEG C with the heating rate of 8 DEG C/min, keeps temperature 30s, add
Diethylene glycol dibenzoate and defoaming agent, keeping temperature is 70 DEG C, and stirs 30min at 10 turns/min, naturally cools to room
Temperature obtains decorating film liquid；
Decorating film is attached to density plate surface by step 3: the decorating film liquid that step 2 obtains is uniformly sprayed in density board
Surface, spray 3 times, every time spraying interval 10min.
Embodiment 2
A kind of denseness sheet material of anti-mildew attached decorating film, including density board and decorating film, the decorating film are attached to density board
Surface, it is described with a thickness of 0.07mm, the density board with a thickness of 1.8cm.
The density board includes following components according to mass fraction: 100 parts of wheat stalk, 50 parts of bamboo and 50 parts of sawdust.
The decorating film includes following components according to mass fraction: 70 parts of resin, 30 parts of polyester polyol, 20 parts of acetone,
10 parts of zinc stearate, 10 parts of nanometer calcium carbonate, 3 parts of ammonium polyphosphate, 3 parts of soybean oil, 3 parts of neopelex, toluene two
1 part of isocyanates, 0.2 part of ethyl acetate, 0.1 part of trimethylolpropane, 4 parts of diethylene glycol dibenzoate, 2 parts of defoaming agent.
A kind of preparation method of the denseness sheet material of anti-mildew attached decorating film, comprising the following steps:
Before step 1, density board pre-treatment of raw material is carried out, comprising the following steps:
Step i, maceration extract is prepared, Cu(OH is taken)23g、HF5ml、H2O220ml, 75% ethyl alcohol 20ml sequentially add the water of 100ml
In, and stir evenly；
Step ii, wheat stalk and bamboo are placed in maceration extract, are warming up to 60 DEG C with the speed of 13 DEG C/min, keep the temperature
Then sawdust is added thereto by 20min, stir evenly, and is warming up to 60 DEG C again with the speed of 3 DEG C/min, keeps the temperature
10min,
Step iii, wheat stalk, bamboo and sawdust are taken out and is placed in 5min in 120 DEG C of environment, then with the heating speed of 10 DEG C/min
Degree is warming up to 180 DEG C, keeps temperature 2h,
Step iiii, then wheat stalk, bamboo and sawdust are naturally cooling to room temperature, for use.
The preparation of step 1, density board, comprising the following steps:
Step 11, the section that wheat stalk, bamboo are cut to 3cm, then be placed in pulverizer smash at partial size be 1mm it is thick
Particle, sieving；
Coarse granule is put into hot steam together with sawdust and steams 5min by step 12, dries at a temperature of 150 DEG C to moisture content
It is 50%
Step 13 mixes the coarse granule after drying with sawdust, then is placed in partial size is ground into pulverizer as 0.3mm thin
Grain, sieving；
Step 13, the sieving for obtaining step 12 are placed in the mixed liquor of sodium hydroxide and sodium resinate and stand 1h, filter off
Extra moisture obtains product A, and the sodium hydroxide and sodium resinate mass ratio are 1:1, and the concentration of the mixed liquor is 1%
Step 14, the Lauxite that product A mass 1% is added in product A, the molar ratio of urea and formaldehyde is in Lauxite
1:0.05；
Mixture obtained in step 14 is placed in mold by step 15, and at pressure 200MPa, pressure stabilizing 10min obtains density
Plate；
The preparation of step 2, decorating film liquid, comprising the following steps:
Step 21 takes resin, polyester polyol, zinc stearate, nanometer calcium carbonate, ammonium polyphosphate, soybean oil according to said ratio
It is added with neopelex into the reaction kettle added with acetone, 20min is stirred at 50 turns/min, with 10 DEG C/min
Heating rate be warming up to 60 DEG C, add toluene di-isocyanate(TDI) and ethyl acetate, stir 5s, then at 50 turns/min with 5
Trimethylolpropane is added dropwise in drop/s speed, is warming up to 80 DEG C with the heating rate of 10 DEG C/min, keeps temperature 60s, then plus
Enter diethylene glycol dibenzoate and defoaming agent, keeping temperature is 80 DEG C, and stirs 50min at 20 turns/min, is naturally cooled to
Room temperature obtains decorating film liquid；
Decorating film is attached to density plate surface by step 3: the decorating film liquid that step 2 obtains is uniformly sprayed in density board
Surface, spray 5 times, every time spraying interval 30min.
Embodiment 3
A kind of denseness sheet material of anti-mildew attached decorating film, including density board and decorating film, the decorating film are attached to density board
Surface, it is described with a thickness of 0.06mm, the density board with a thickness of 1.0cm.
The density board includes following components according to mass fraction: 90 parts of wheat stalk, 40 parts of bamboo and 30 parts of sawdust.
The decorating film includes following components according to mass fraction: 65 parts of resin, 25 parts of polyester polyol, 15 parts of acetone,
8 parts of zinc stearate, 8 parts of nanometer calcium carbonate, 2 parts of ammonium polyphosphate, 2 parts of soybean oil, 2 parts of neopelex, toluene two are different
0.8 part of cyanate, 0.15 part of ethyl acetate, 0.08 part of trimethylolpropane, 3.5 parts of diethylene glycol dibenzoate, defoaming agent 1.5
Part.
A kind of preparation method of the denseness sheet material of anti-mildew attached decorating film, comprising the following steps:
Before step 1, density board pre-treatment of raw material is carried out, comprising the following steps:
Step i, maceration extract is prepared, Cu(OH is taken)22g、HF3ml、H2O215ml, 75% ethyl alcohol 15ml sequentially add the water of 100ml
In, and stir evenly；
Step ii, wheat stalk and bamboo are placed in maceration extract, are warming up to 60 DEG C with the speed of 2 DEG C/min, keep the temperature
Then sawdust is added thereto by 15min, stir evenly, and is warming up to 60 DEG C again with the speed of 2 DEG C/min, keeps the temperature
8min,
Step iii, wheat stalk, bamboo and sawdust are taken out and is placed in 2-5min in 110 DEG C of environment, then with the heating of 9 DEG C/min
Speed is warming up to 160 DEG C, keeps temperature 1.5h,
Step iiii, then wheat stalk, bamboo and sawdust are naturally cooling to room temperature, for use.
The preparation of step 1, density board, comprising the following steps:
Step 11, the section that wheat stalk, bamboo are cut to 2cm, then be placed in pulverizer and smash into partial size as 0.8mm's
Coarse granule, sieving；
Coarse granule is put into hot steam together with sawdust and steams 4min by step 12, dries at a temperature of 140 DEG C to moisture content
It is 40%
Step 13 mixes the coarse granule after drying with sawdust, then is placed in partial size is ground into pulverizer as 0.2mm thin
Grain, sieving；
Step 13, the sieving for obtaining step 12 are placed in the mixed liquor of sodium hydroxide and sodium resinate and stand 0.8h, filtering
Extra moisture is removed, obtains product A, the sodium hydroxide and sodium resinate mass ratio are 1:1, and the concentration of the mixed liquor is 1%
Step 14, the Lauxite that product A mass 1% is added in product A, the molar ratio of urea and formaldehyde is in Lauxite
1:0.05；
Mixture obtained in step 14 is placed in mold by step 15, and at pressure 100MPa, pressure stabilizing 5min obtains density
Plate；
The preparation of step 2, decorating film liquid, comprising the following steps:
Step 21 takes resin, polyester polyol, zinc stearate, nanometer calcium carbonate, ammonium polyphosphate, soybean oil according to said ratio
It is added with neopelex into the reaction kettle added with acetone, 15min is stirred at 40 turns/min, with 9 DEG C/min
Heating rate be warming up to 55 DEG C, add toluene di-isocyanate(TDI) and ethyl acetate, stir 4s, then at 40 turns/min with 5
Trimethylolpropane is added dropwise in drop/s speed, is warming up to 75 DEG C with the heating rate of 9 DEG C/min, keeps temperature 50s, add
Diethylene glycol dibenzoate and defoaming agent, keeping temperature is 75 DEG C, and stirs 40min at 15 turns/min, naturally cools to room
Temperature obtains decorating film liquid；
Decorating film is attached to density plate surface by step 3: the decorating film liquid that step 2 obtains is uniformly sprayed in density board
Surface, spray 4 times, every time spraying interval 20min.
The above is only a preferred embodiment of the present invention, it should be pointed out that: for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (7)
1. a kind of denseness sheet material of anti-mildew attached decorating film, which is characterized in that including density board and decorating film, the decorating film
Be attached to the surface of density board, it is described with a thickness of 0.05-0.07mm, the density board with a thickness of 0.5-1.8cm.
2. the denseness sheet material of anti-mildew attached decorating film according to claim 1, which is characterized in that the density board according to
Mass fraction includes following components: 80-100 parts of wheat stalk, 30-50 parts of bamboo and 20-50 parts of sawdust.
3. the denseness sheet material of anti-mildew attached decorating film according to claim 2, which is characterized in that the decorating film according to
Mass fraction includes following components: 60-70 parts of resin, 20-30 parts of polyester polyol, 10-20 parts of acetone, zinc stearate 5-10
Part, 5-10 parts of nanometer calcium carbonate, 1-3 parts of ammonium polyphosphate, 1-3 parts of soybean oil, 1-3 parts of neopelex, toluene two are different
0.5-1 parts of cyanate, 0.1-0.2 parts of ethyl acetate, 0.05-0.1 parts of trimethylolpropane, 3-4 parts of diethylene glycol dibenzoate,
1-2 parts of defoaming agent.
4. the preparation method of the denseness sheet material of anti-mildew attached decorating film according to claim 3, which is characterized in that including
Following steps:
The preparation of step 1, density board, comprising the following steps:
Step 11, the section that wheat stalk, bamboo are cut to 1-3cm, then be placed in pulverizer smash at partial size be 0.5-
The coarse granule of 1mm, sieving；
Coarse granule is put into hot steam together with sawdust and steams 3-5min by step 12, dries extremely at a temperature of 130-150 DEG C
Moisture content is 30-50%
Step 13 mixes the coarse granule after drying with sawdust, then is placed in and is ground into partial size in pulverizer as 0.1-0.3mm's
Fine grained, sieving；
Step 13, the sieving for obtaining step 12 are placed in the mixed liquor of sodium hydroxide and sodium resinate and stand 0.5-1h, mistake
Extra moisture is filtered off, product A is obtained,
Step 14, the Lauxite that product A mass 1% is added in product A, the molar ratio of urea and formaldehyde is in Lauxite
1:0.05；
Mixture obtained in step 14 is placed in mold by step 15, and at pressure 20-200MPa, pressure stabilizing 3-10min is obtained
To density board；
The preparation of step 2, decorating film liquid, comprising the following steps:
Step 21 takes resin, polyester polyol, zinc stearate, nanometer calcium carbonate, ammonium polyphosphate, soybean oil according to said ratio
It is added with neopelex into the reaction kettle added with acetone, 10-20min is stirred at 30-50 turns/min, with 8-
The heating rate of 10 DEG C/min is warming up to 50-60 DEG C, adds toluene di-isocyanate(TDI) and ethyl acetate, turns/min in 30-50
Lower stirring 3-5s, then trimethylolpropane is added dropwise with 5 drops/s speed, 70-80 is warming up to the heating rate of 8-10 DEG C/min
DEG C, temperature 30-60s is kept, diethylene glycol dibenzoate and defoaming agent are added, keeping temperature is 70-80 DEG C, and in 10-
30-50min is stirred under 20 turns/min, cooled to room temperature obtains decorating film liquid；
Decorating film is attached to density plate surface by step 3: the decorating film liquid that step 2 obtains is uniformly sprayed in density board
Surface, spray 3-5 times.
5. the preparation method of the denseness sheet material of anti-mildew attached decorating film according to claim 4, which is characterized in that described
Before step 1, density board pre-treatment of raw material is carried out, comprising the following steps:
Step i, maceration extract is prepared, Cu(OH is taken)21-3g、HF2-5ml、H2O210-20ml, 75% ethyl alcohol 10-20ml successively add
Enter in the water of 100ml, and stirs evenly；
Step ii, wheat stalk and bamboo are placed in maceration extract, are warming up to 60 DEG C with the speed of 1-3 DEG C/min, keep the temperature
10-20min is spent, then sawdust is added thereto, is stirred evenly, is warming up to 60 DEG C again with the speed of 1-3 DEG C/min, keeping should
Temperature 5-10min,
Step iii, wheat stalk, bamboo and sawdust are taken out and is placed in 2-5min in 100-120 DEG C of environment, then with 8-10 DEG C/min
Heating rate be warming up to 150-180 DEG C, keep temperature 1-2h,
Step iiii, then wheat stalk, bamboo and sawdust are naturally cooling to room temperature, for use.
6. the preparation method of the denseness sheet material of anti-mildew attached decorating film according to claim 4, which is characterized in that described
In step 13, sodium hydroxide and sodium resinate mass ratio are 1:1, and the concentration of the mixed liquor is 1%.
7. the preparation method of the denseness sheet material of anti-mildew attached decorating film according to claim 4, which is characterized in that described
In step 2, spraying is spaced 10-30min every time.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113291022A (en) * | 2021-04-09 | 2021-08-24 | 佳诺威集团股份有限公司 | Cabinet routing plate and manufacturing method |
| CN115463238A (en) * | 2022-09-16 | 2022-12-13 | 海信冰箱有限公司 | Refrigerator deodorization material, preparation method thereof and refrigerator |
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