CN107938429A - A kind of preparation method of hydrophobic polystyrene coating paper substrate - Google Patents
A kind of preparation method of hydrophobic polystyrene coating paper substrate Download PDFInfo
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- CN107938429A CN107938429A CN201711207120.9A CN201711207120A CN107938429A CN 107938429 A CN107938429 A CN 107938429A CN 201711207120 A CN201711207120 A CN 201711207120A CN 107938429 A CN107938429 A CN 107938429A
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- polystyrene
- paper substrate
- starch
- coating
- hydrophobic
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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
- D21H19/00—Coated paper; Coating material
- D21H19/10—Coatings without pigments
- D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
- D21H19/20—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D21H19/22—Polyalkenes, e.g. polystyrene
-
- 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
- D21H19/00—Coated paper; Coating material
- D21H19/10—Coatings without pigments
- D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Paper (AREA)
- Filtering Materials (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
A kind of preparation method of hydrophobic polystyrene coating paper substrate, at normal temperatures and pressures, binding agent such as starch are dissolved completely in deionized water, are subsequently added into granules of polystyrene, finely dispersed coating material solution is prepared after ultrasonic disperse;Then by the way that painting method is filtered by vacuum by polystyrene material uniform load on paper substrate surface;The polystyrene for being supported on paper substrate surface is finally set to occur to melt and be effectively embedded in paper substrate surface by the way of high-temperature baking;The method provided according to the present invention, the surface tension that can prepare water outlet are more than 95 °, hydrophobic polystyrene coating paper substrate of the surface energy more than 45mN/m;Method provided by the invention have it is easy to operate, it is reproducible, without any organic solvent, the features such as paper substrate pliability prepared is good, hydrophobicity is strong.
Description
Technical field
The present invention relates to the preparation field of polystyrene coating paper substrate, more particularly to a kind of hydrophobic polystyrene coating
The preparation method of paper substrate, relates in particular to one kind using filter paper and polystyrene as raw material, is dried by vacuum filtration and high temperature
The method that roasting mode prepares hydrophobic polystyrene coating paper substrate.
Technical background
Paper substrate has been widely used in many necks since with high mechanical strength, pliability is good, lower-price characteristic
Domain.Difference according to purposes and with liquid force, paper substrate show property with different, particularly may be divided into hydrophily and dredge
Water-based paper substrate.Such as paper handkerchief needs stronger water absorbing properties, and wrapping paper should possess preferable water-resisting property.Therefore,
For preparing, different purposes are hydrophilic and hydrophobic paper matrix has weight from effect between liquid for control paper substrate surface fiber element
The meaning wanted.
Solubility is low greatly, in water due to having the characteristics that size uniformity, surface area for polystyrene, is widely used to now
Wastewater treatment, chromatographic isolation, Solid Phase Extraction, Optical devices etc. (Chemosphere, 2016,156,326;
J.Sep.Sci.,2016,39,1648;ACS Appl.Mater.Interfaces,2014,6,12752;Langmuir,2012,
28,15323), and polystyrene coating paper substrate be also applied to water-oil separating, micro-extraction, packaging material and mass spectral analysis
Etc. (Chem.Eng.J., 2013,231,414;Microchem.J.,2017,133,90;Carbohydr.Polym.,
2013,98,1166;Anal.Chem.,2017,89,7988).Paper substrate is coated or modified now on different type polystyrene
The preparation method of matter has absorption method (J.Appl.Polym.Sci.2009,112,1653), bar coating or gravure method
(Colloids Surf.B, 2014,118,261), infusion process (Carbohydr.Polym., 2012,89,269;
Carbohydr.Polym.,2013,98,1166;Appl.Surf.Sci.,2013,285P,583;Chem.Eng.J.,2013,
231,414;Microchem.J., 2017,133,90) etc..Although these methods can prepare different type hydrophobicity polyphenyl second
Alkene coats paper substrate, or but as above method is there are polystyrene coated weight is uncontrollable, or preparation system need to introduce it is organic
Solvent or additive, it is therefore necessary to develop the hydrophobic paper matrix that a kind of polystyrene coated weight is controllable, environmentally protective and prepare
Method.Recently, we have developed a kind of plain type vacuum filtration cladding process (Anal.Methods, 2015,7,5381), using this
Method can have different types of material (such as metal-organic framework materials, metal oxide, organic polymer, carbon nanotube)
Effect coated in paper substrate surface (Analyst, 2015,140,8048;Anal.Methods,2016,8,8004;Anal.Chem.,
2016,88,7005) the polystyrene coating paper substrate hydrophobicity, but using this method prepared is poor, while in shear history
In have faint dry linting phenomenon (Anal.Chem., 2017,89,7988), develop for this kind of hydrophobicity is strong, performance stablize it is poly-
The environmentally protective method of styrene coating paper substrate has important practical value for the development of new paper substrate.
The content of the invention
The defects of in order to overcome above-mentioned technology, it is an object of the invention to provide a kind of hydrophobic polystyrene to coat paper substrate
The preparation method of matter, at normal temperatures and pressures polystyrene first filter coat by way of be supported on its surface, Ran Houtong
The mode for crossing high-temperature baking prepares hydrophobic polystyrene coating paper substrate.Painting method provided by the invention is utilized at the same time,
Also other coating polymeric materials can be prepared corresponding hydrophobic paper matrix on paper substrate surface.This method has operation letter
It is single, it is reproducible, without any organic solvent, the advantages that paper substrate pliability prepared is good, hydrophobicity is strong.
To achieve the above object, technical scheme is as follows:
A kind of preparation method of hydrophobic polystyrene coating paper substrate, comprises the following steps:
First, under normal temperature and pressure conditions, binding agent, polystyrene and deionized water are configured to aqueous solution first, stirred
It is put into after uniformly under ultrasound condition and continues ultrasonic emulsification processing to prepare dispersed coating material solution, polystyrene
For particle between 0.1-30 μm, the concentration of polystyrene in aqueous is 0.1-10g/L, and the concentration of binding agent in aqueous is
0.05–0.5g/L;
2nd, granules of polystyrene is then supported on its surface by way of suction filtration, the paper that will then prepare
It is put into fume hood to air-dry, then places it between two pieces of glass plates and flatten;
3rd, after air-drying, loaded by polystyrene paper substrate is positioned in baking oven, at 110-250 DEG C, baking time is
10-100min, you can obtain hydrophobic polystyrene coating paper substrate.
The sticker includes soluble starch, cornstarch, tapioca, crosslinked starch, esterification starch, oxidation shallow lake
Powder, hydroxypropul starch, pre-gelatinized starch.
The suction filtration mode can be vacuum filtration water pump or air pump.
This method is to prepare coating uniform by simply filtering coating method first in place of being different from traditional cladding process
Hydrophily polystyrene coating paper substrate, vitrifying then occurs in 110-250 DEG C of high-temperature baking process using polystyrene
The characteristics of prepare hydrophobic polystyrene coating paper substrate;It can also be prepared using this method other with the polymerization of vitrifying characteristic
The hydrophobicity coating paper substrate of thing.
The invention has the advantages that:
(1) this method has easy to operate:Can by simply filter coating and high-temperature baking mode can obtain it is hydrophobic
Property polystyrene coating paper substrate;
(2) this method has reproducible:Can be by controlling concentration and baking temperature and the time of polystyrene aqueous solution
It can obtain corresponding paper substrate;
(3) this method is free of any organic solvent:Polystyrene is simply added in aqueous solution and configured corresponding by this method
Coating solution, have the characteristics that environmentally protective;
(4) a process for preparing paper substrate pliability it is good:The paper substrate prepared using method provided by the invention is not
There are starch phenomenon, while bending will not produce any influence to the performance of paper substrate;
(5) a process for preparing polystyrene coating paper substrate hydrophobicity it is strong:Using a process for preparing paper substrate
95 ° are more than to the surface tension of water, surface energy is more than 45mN/m;
(6) present invention has easy to operate, reproducible, without any organic solvent, the paper substrate pliability prepared
Well, the features such as hydrophobicity is strong;
Brief description of the drawings
Fig. 1 is that different paper substrate hydrophobic performances compare:Fig. 1 (A) is commodity filter paper;Fig. 1 (B) is loaded by polystyrene paper substrate
Matter;Fig. 1 (C) is polystyrene coating paper substrate.
Fig. 2 (A) is the photo figure for continuously preparing three polystyrene coating paper substrates;Fig. 2 (B) is polystyrene coating
The surface texture of paper substrate.
Embodiment
The present invention is described in detail below by embodiment, but the present invention is not limited to following embodiments.
A kind of preparation method of hydrophobic polystyrene coating paper substrate, comprises the following steps:
Step 1: at normal temperatures and pressures, 0.005-0.05g is weighed as the starch of binding agent in 250mL beakers, it is used
Binding agent can be soluble starch, cornstarch, tapioca, crosslinked starch, esterification starch, oxidized starch, hydroxypropyl form sediment
Powder, pre-gelatinized starch and other types of binding agent, add 100mL deionized waters, stir evenly, then add solution afterwards
Heat to boiling state is completely dissolved starch;Then 0.01-1g polystyrene coating material is weighed in above-mentioned solution, coating material
Weight can according to specific requirement carry out modulation, be put into after stirring evenly under ultrasound condition continue ultrasonic emulsification processing 5-
100min, to prepare dispersed coating material solution.
Step 2: the loading of above-mentioned coating solution is carried out suction filtration coating in the Suction filtration device containing blank filter paper, filter
Device can be general water tank type suction filter pump or other types of Suction filtration device, and it can be 0.1-1h to filter the time, will then prepare
The paper gone out is put into fume hood and air-dries, and then places it between two pieces of glass plates and flattens.
Step 3: above-mentioned polystyrene coating paper substrate is positioned in baking oven, the maximum temperature of baking oven is between 110-250
DEG C, baking time can be 10-100min, after having toasted, allow the temperature of baking oven to naturally cool to room temperature, you can it is equal to obtain surface
First, the strong polystyrene coating paper substrate of hydrophobicity.
Embodiment one
With reference to Fig. 1, under room temperature, in 250mL beakers, 0.02g crosslinked starch and 100mL deionized waters are added, is adopted
It is stirred for uniformly with glass bar;Then place it in heating mantle and heated, heating process is persistently stirred
Starch is set fully to dissolve;Treat that starch is completely dissolved, after beaker is taken out and is cooled to room temperature from heating unit, add 0.6g
Footpath is 2.0 μm or so of self-control polystyrene microsphere and stirs evenly, and is put into phaco device is ultrasonically treated afterwards
15min, is prepared into uniform coating solution;Then as above solution is added in the device containing blank filter paper and carries out suction filtration coating,
After the solution in Suction filtration device is drained, coated paper is removed, is suspended in fume hood and is air-dried, is finally placed on two pieces of glass
Flattened between glass plate, obtain coated paper;Loaded by polystyrene paper substrate is positioned in baking oven therewith and is toasted, through 170 DEG C of bakings
Gained paper coats paper substrate for polystyrene after roasting 40min.
Fig. 1 is to prepare polystyrene using the method for the present invention to coat paper substrate and commodity filter paper, loaded by polystyrene paper
Matrix hydrophobic performance compares.It can be seen that, the paper substrate directly loaded using polystyrene, almost without hydrophobic performance, with commodity
The hydrophobicity of filter paper is suitable, and the polystyrene coating paper substrate hydrophobic performance prepared using the method provided by the present invention is stronger,
Water is 95o or so in the contact angle of paper surface.
Fig. 2 (A) coats paper substrate continuously to prepare three polystyrene using the method for the present invention, it can be seen that the present invention carries
The polystyrene coating paper substrate that the method for confession is prepared is reproducible.Fig. 2 (B) is to prepare the soft of paper substrate using this research
Toughness, it can be seen that the paper substrate pliability prepared is good, and dry linting or slight crack is not present in folding process paper substrate surface.
Embodiment two
Under room temperature, in 250mL beakers, 0.03g soluble starches and 100mL deionized waters are added, using glass
Rod is stirred for uniformly;Then place it in heating mantle and heated, heating process, which is persistently stirred, makes starch
Fully dissolving;Treat that starch is completely dissolved, after beaker is taken out and is cooled to room temperature from heating unit, adding 0.6g particle diameters is
2.0 μm or so of self-control polystyrene microsphere simultaneously stirs evenly, and is put into phaco device is ultrasonically treated afterwards
15min;Then as above solution is added in the device containing blank filter paper and carries out suction filtration coating, treat that the solution in Suction filtration device is taken out
After dry, coated paper is removed, is suspended in fume hood and is air-dried, be finally placed between two pieces of glass plates and flatten;Therewith will be poly-
Styrene load paper substrate be positioned in 170 DEG C of baking oven carry out baking 40min can obtain polystyrene coat paper substrate.
Embodiment three
Under room temperature, in 250mL beakers, 0.02g soluble starches and 100mL deionized waters are added, using glass
Rod is stirred for uniformly;Then place it in heating mantle and heated, heating process, which is persistently stirred, makes starch
Fully dissolving;Treat that starch is completely dissolved, by beaker after heating unit takes out and is cooled to room temperature, it is 2.0 μ to add 0.8g particle diameters
The self-control polystyrene microsphere of m or so simultaneously stirs evenly, and is put into afterwards in phaco device and carries out supersound process 15min;Connect
To add above-mentioned solution in the device containing blank filter paper and carry out suction filtration coating, after being drained etc. the solution in Suction filtration device, take
Lower coated paper, is suspended in fume hood and is air-dried, and is finally placed between two pieces of glass plates and flattens;Polystyrene is born therewith
Load paper matrix be positioned in 170 DEG C of baking oven carry out baking 50min can obtain polystyrene coat paper substrate.
Example IV
Under room temperature, in 250mL beakers, 0.02g cornstarch and 100mL deionized waters are added, using glass bar
It is stirred for uniformly;Then place it in heating mantle and heated, heating process, which is persistently stirred, fills starch
Divide dissolving;Treat that starch is completely dissolved, by beaker after heating unit takes out and is cooled to room temperature, it is 2.0 μm to add 0.1g particle diameters
The self-control polystyrene microsphere of left and right simultaneously stirs evenly, and is put into afterwards in phaco device and carries out supersound process 15min;Then
As above solution is added in the device containing blank filter paper and carries out suction filtration coating, after the solution in Suction filtration device is drained, is removed
Coated paper, is suspended in fume hood and is air-dried, and is finally placed between two pieces of glass plates and flattens;Therewith by loaded by polystyrene
Paper substrate be positioned in 170 DEG C of baking oven carry out baking 30min can obtain polystyrene coat paper substrate.
Embodiment five
Under room temperature, in 250mL beakers, 0.02g soluble starches and 100mL deionized waters are added, using glass
Rod is stirred for uniformly;Then place it in heating mantle and heated, heating process, which is persistently stirred, makes starch
Fully dissolving;Treat that starch is completely dissolved, by beaker after heating unit takes out and is cooled to room temperature, it is 2.0 μ to add 0.8g particle diameters
The self-control polystyrene microsphere of m or so simultaneously stirs evenly, and is put into afterwards in phaco device and carries out supersound process 15min;Connect
To add as above solution in the device containing blank filter paper and carry out suction filtration coating, after being drained etc. the solution in Suction filtration device, take
Lower coated paper, is suspended in fume hood and is air-dried, and is finally placed between two pieces of glass plates and flattens;Polystyrene is born therewith
Load paper matrix be positioned in 110 DEG C of baking oven carry out baking 45min can obtain polystyrene coat paper substrate.
Claims (4)
1. a kind of preparation method of hydrophobic polystyrene coating paper substrate, it is characterised in that comprise the following steps:
First, under normal temperature and pressure conditions, binding agent, polystyrene and deionized water is configured to aqueous solution first, stirred evenly
It is put into afterwards under ultrasound condition and continues ultrasonic emulsification processing to prepare dispersed coating material solution, the particle of polystyrene
Between 0.1-30 μm, the concentration of polystyrene in aqueous is 0.1-10g/L, and the concentration of binding agent in aqueous is
0.05–0.5g/L;
2nd, then by way of suction filtration by loaded by polystyrene in its surface, the paper prepared is put into ventilation afterwards
Cupboard air-dries, and then places it between two pieces of glass plates and flattens;
3rd, after air-drying, loaded by polystyrene paper substrate is positioned in baking oven, at 110-250 DEG C, baking time for 10-
100min, you can obtain hydrophobic polystyrene coating paper substrate.
A kind of 2. preparation method of hydrophobic polystyrene coating paper substrate according to claim 1, it is characterised in that institute
The sticker stated includes soluble starch, cornstarch, tapioca, crosslinked starch, esterification starch, oxidized starch, hydroxypropyl
Starch and pre-gelatinized starch.
A kind of 3. preparation method of hydrophobic polystyrene coating paper substrate according to claim 1, it is characterised in that institute
The mode for the suction filtration stated can be vacuum filtration water pump or air pump.
A kind of 4. preparation method of hydrophobic polystyrene coating paper substrate according to claim 1, it is characterised in that room
Under the conditions of temperature, in 250mL beakers, 0.02g crosslinked starch and 100mL deionized waters are added, is stirred for using glass bar
It is even;Then place it in heating mantle and heated, heating process, which is persistently stirred, makes starch fully dissolve;Wait to form sediment
Powder is completely dissolved, and after beaker is taken out and is cooled to room temperature from heating unit, adds the self-control that 0.6g particle diameters are 2.0 μm or so
Polystyrene microsphere simultaneously stirs evenly, and is put into afterwards in phaco device and carries out supersound process 15min, is prepared into uniform coating
Solution;Then as above solution is added in the device containing blank filter paper and carries out suction filtration coating, treat that the solution in Suction filtration device is taken out
After dry, coated paper is removed, is suspended in fume hood and is air-dried, be finally placed between two pieces of glass plates and flatten;Finally will be poly-
Styrene load paper substrate, which is positioned in baking oven, to be toasted, and uniform surface, hydrophobicity can be obtained after 170 DEG C are toasted 40min
Strong polystyrene coating paper substrate.
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Cited By (2)
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CN110606898A (en) * | 2019-09-04 | 2019-12-24 | 中国科学院山西煤炭化学研究所 | Method for reducing fusion of cross-linked starch granules |
KR102155614B1 (en) * | 2020-04-06 | 2020-09-14 | 하호 | Composition for Coating Moisture-proof or Waterproof Paper Having Excellent Strength and Paper Applied with the Same |
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KR102155614B1 (en) * | 2020-04-06 | 2020-09-14 | 하호 | Composition for Coating Moisture-proof or Waterproof Paper Having Excellent Strength and Paper Applied with the Same |
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