CN112852349A - Environment-friendly odor-free adhesive for wall decorative plate and preparation method thereof - Google Patents
Environment-friendly odor-free adhesive for wall decorative plate and preparation method thereof Download PDFInfo
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- CN112852349A CN112852349A CN202110266309.5A CN202110266309A CN112852349A CN 112852349 A CN112852349 A CN 112852349A CN 202110266309 A CN202110266309 A CN 202110266309A CN 112852349 A CN112852349 A CN 112852349A
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- 239000000853 adhesive Substances 0.000 title claims abstract description 38
- 230000001070 adhesive effect Effects 0.000 title claims abstract description 38
- 238000002360 preparation method Methods 0.000 title claims abstract description 8
- 238000003756 stirring Methods 0.000 claims abstract description 56
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 41
- 239000000945 filler Substances 0.000 claims abstract description 39
- 239000008367 deionised water Substances 0.000 claims abstract description 32
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 32
- 239000001913 cellulose Substances 0.000 claims abstract description 25
- 229920002678 cellulose Polymers 0.000 claims abstract description 25
- 239000004372 Polyvinyl alcohol Substances 0.000 claims abstract description 18
- 239000011118 polyvinyl acetate Substances 0.000 claims abstract description 18
- 229920002689 polyvinyl acetate Polymers 0.000 claims abstract description 18
- 229920002451 polyvinyl alcohol Polymers 0.000 claims abstract description 18
- 239000000679 carrageenan Substances 0.000 claims abstract description 17
- 229920001525 carrageenan Polymers 0.000 claims abstract description 17
- 229940113118 carrageenan Drugs 0.000 claims abstract description 17
- 235000010418 carrageenan Nutrition 0.000 claims abstract description 17
- UHVMMEOXYDMDKI-JKYCWFKZSA-L zinc;1-(5-cyanopyridin-2-yl)-3-[(1s,2s)-2-(6-fluoro-2-hydroxy-3-propanoylphenyl)cyclopropyl]urea;diacetate Chemical compound [Zn+2].CC([O-])=O.CC([O-])=O.CCC(=O)C1=CC=C(F)C([C@H]2[C@H](C2)NC(=O)NC=2N=CC(=CC=2)C#N)=C1O UHVMMEOXYDMDKI-JKYCWFKZSA-L 0.000 claims abstract description 17
- 239000000203 mixture Substances 0.000 claims abstract description 14
- 238000001816 cooling Methods 0.000 claims abstract description 9
- 230000001877 deodorizing effect Effects 0.000 claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims abstract description 9
- 239000002994 raw material Substances 0.000 claims abstract description 8
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 84
- 239000000440 bentonite Substances 0.000 claims description 38
- 229910000278 bentonite Inorganic materials 0.000 claims description 38
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 38
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 claims description 32
- 239000000243 solution Substances 0.000 claims description 27
- 239000011259 mixed solution Substances 0.000 claims description 16
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 14
- 239000007864 aqueous solution Substances 0.000 claims description 14
- 239000004202 carbamide Substances 0.000 claims description 14
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims description 12
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 12
- 239000001110 calcium chloride Substances 0.000 claims description 12
- 229910001628 calcium chloride Inorganic materials 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 12
- 238000005406 washing Methods 0.000 claims description 10
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 8
- 238000001914 filtration Methods 0.000 claims description 6
- 230000007935 neutral effect Effects 0.000 claims description 6
- 238000005034 decoration Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 2
- 230000009965 odorless effect Effects 0.000 claims 1
- 238000001179 sorption measurement Methods 0.000 abstract description 9
- 239000002131 composite material Substances 0.000 abstract description 8
- LSDPWZHWYPCBBB-UHFFFAOYSA-N Methanethiol Chemical compound SC LSDPWZHWYPCBBB-UHFFFAOYSA-N 0.000 description 6
- 239000002002 slurry Substances 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 230000032683 aging Effects 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229920001807 Urea-formaldehyde Polymers 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 2
- -1 hydroxyl aluminum ions Chemical class 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- ODGAOXROABLFNM-UHFFFAOYSA-N polynoxylin Chemical compound O=C.NC(N)=O ODGAOXROABLFNM-UHFFFAOYSA-N 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 238000004887 air purification Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003115 biocidal effect Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J131/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an acyloxy radical of a saturated carboxylic acid, of carbonic acid, or of a haloformic acid; Adhesives based on derivatives of such polymers
- C09J131/02—Homopolymers or copolymers of esters of monocarboxylic acids
- C09J131/04—Homopolymers or copolymers of vinyl acetate
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention discloses an environment-friendly odor-free adhesive for wall decorative plates and a preparation method thereof, wherein the environment-friendly odor-free adhesive comprises the following raw materials in parts by weight: 40-60 parts of polyvinyl acetate, 10-20 parts of polyvinyl alcohol, 3-5 parts of carrageenan, 15-30 parts of odor removing filler and 20-30 parts of deionized water; firstly, adding polyvinyl acetate and carrageenan into deionized water, heating in a water bath, and stirring at a constant speed for 30min to prepare a mixture; secondly, cooling the mixture to 40-45 ℃, then sequentially adding polyvinyl alcohol and a deodorizing filler, and uniformly stirring for 30min at the temperature to prepare the environment-friendly and odor-free adhesive for the wall decorative plate; the composite cellulose has rough surface, increased holes and increased specific surface area, so that the composite cellulose has excellent adsorption performance, the composite cellulose is used as a template, molecules can be firmly adsorbed on the template, the system is prevented from being unstable, and the odor in the air can be removed by the odor removing filler through self high adsorbability.
Description
Technical Field
The invention belongs to the technical field of building environment-friendly materials, and particularly relates to an environment-friendly and odor-free adhesive for a wall decoration plate and a preparation method thereof.
Background
The adhesive is a substance which can connect two or more parts or materials together through the actions of interface adhesion, cohesion and the like, has the advantages of continuous stress distribution, light weight and the like, and is applied to more and more industries, such as decoration industry, furniture manufacturing industry, shoe making industry, packaging industry and the like; the urea-formaldehyde adhesive is commonly used at present, but the urea-formaldehyde adhesive is easy to permeate to cause adhesive penetration and poor in initial viscosity, and formaldehyde is harmful to human bodies, is not environment-friendly and cannot remove peculiar smell in air.
Disclosure of Invention
In order to overcome the technical problems, the invention provides an environment-friendly odor-free adhesive for wall decorative plates and a preparation method thereof.
The purpose of the invention can be realized by the following technical scheme:
an environment-friendly odor-free adhesive for wall decorative plates comprises the following raw materials in parts by weight: 40-60 parts of polyvinyl acetate, 10-20 parts of polyvinyl alcohol, 3-5 parts of carrageenan, 15-30 parts of odor removing filler and 20-30 parts of deionized water;
the environment-friendly odor-free adhesive for the wall decorative plate is prepared by the following method:
firstly, adding polyvinyl acetate and carrageenan into deionized water, heating in a water bath at 65-80 ℃, and uniformly stirring at a rotating speed of 150-;
and secondly, cooling the mixture to 40-45 ℃, then sequentially adding polyvinyl alcohol and a deodorizing filler, and stirring at a constant speed for 30min at the temperature to prepare the environment-friendly odor-free adhesive for the wall decorative plate.
Further, the solid content of the polyvinyl acetate is 30-35%, and the molecular weight of the polyvinyl alcohol is 3000-4000.
Further, the odor removing filler is prepared by the following method:
step S1, dropwise adding a sodium hydroxide solution with the mass fraction of 10% into an aluminum chloride solution with the mass fraction of 10%, controlling the dropwise adding speed to be 1mL/min, stirring while dropwise adding, stirring at a constant speed of 150-;
step S2, adding cellulose powder and sodium hydroxide into a 10% by mass urea aqueous solution cooled to-20 ℃, uniformly stirring to obtain a homogeneous cellulose solution, then adding the treated bentonite prepared in the step S1, uniformly stirring for 2 hours, then dropwise adding dilute hydrochloric acid with the mass fraction of 5%, controlling the dropwise adding speed to be 3mL/min, adding calcium chloride, uniformly stirring to obtain gel balls, filtering, washing with deionized water to be neutral, and preparing the odor-removing filler.
Step S1, sodium hydroxide solution is dripped into aluminum chloride solution, the dripping speed is controlled to be 0.5-1mL/min, so that the generated polymerization reaction is carried out step by step, the phenomenon that the dripping speed is too high, hydroxide precipitation is generated in the aluminum chloride solution, mixed solution A is prepared, bentonite is prepared into slurry and mixed with the mixed solution A, hydroxyl aluminum ions in the mixed solution A are polymerized into complex ions to enlarge the space between bentonite layers and generate micropores between the bentonite layers, so that the prepared treated bentonite has larger specific surface area and pore volume, step S2, cellulose powder, sodium hydroxide and urea aqueous solution are mixed to prepare homogeneous cellulose solution, the treated bentonite is added to prepare a bentonite and cellulose composite material, namely the odor removing filler, the surface of the compounded cellulose is rough, the holes are increased, the specific surface area is increased, so that the adsorption performance is excellent, the composite cellulose is used as a template, molecules can be firmly adsorbed on the template, the instability of a system is prevented, and the odor in the air can be removed through the high adsorption of the odor removing filler.
Further, the molar ratio of sodium hydroxide to aluminum chloride is controlled to be 2: 1 in step S1, the weight ratio of bentonite, deionized water and the mixed solution A is controlled to be 1: 100: 10, and the weight ratio of cellulose, sodium hydroxide, urea aqueous solution, treated bentonite, 5% diluted hydrochloric acid and calcium chloride is controlled to be 5: 8: 100: 3: 1: 4-5 in step S2.
A preparation method of an environment-friendly odor-free adhesive for wall decorative plates comprises the following steps:
firstly, adding polyvinyl acetate and carrageenan into deionized water, heating in a water bath at 65-80 ℃, and uniformly stirring at a rotating speed of 150-;
and secondly, cooling the mixture to 40-45 ℃, then sequentially adding polyvinyl alcohol and a deodorizing filler, and stirring at a constant speed for 30min at the temperature to prepare the environment-friendly odor-free adhesive for the wall decorative plate.
The invention has the beneficial effects that:
the invention relates to an environment-friendly odor-free adhesive for wall decorative plates, which is prepared from raw materials such as vinyl acetate, carrageenan and odor-removing filler, wherein the preparation process does not contain organic solvent, the odor-removing filler can endow the odor-removing filler with excellent air purification performance and meets the requirement of environmental protection, the odor-removing filler is prepared by dropwise adding sodium hydroxide solution into aluminum chloride solution in step S1, the dropwise adding speed is controlled to be 0.5-1mL/min, so that the generated polymerization reaction is carried out step by step, the phenomenon that the dropwise adding speed is too high, the alkalinity in the aluminum chloride solution is too high, hydroxide precipitation is generated, mixed solution A is prepared, then bentonite is prepared into slurry and is mixed with the mixed solution A, hydroxyl aluminum ions in the mixed solution A are polymerized into complex ions to enlarge the space between bentonite layers, micropores can be generated among the bentonite layers, and the prepared treated bentonite has larger specific surface area and pore volume, step S2 is to mix cellulose powder, sodium hydroxide and urea aqueous solution to prepare a homogeneous cellulose solution, then add the treated bentonite to prepare a bentonite and cellulose composite material, namely the odor removal filler, the surface of the compounded cellulose is rough, the holes are increased, and the specific surface area is increased, so the composite material has excellent adsorption performance, the composite cellulose is used as a template, molecules can be firmly adsorbed on the template, the system is prevented from being unstable, and the odor removal filler can remove the odor in the air through the self high adsorption.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
An environment-friendly odor-free adhesive for wall decorative plates comprises the following raw materials in parts by weight: 40 parts of polyvinyl acetate, 10 parts of polyvinyl alcohol, 3 parts of carrageenan, 15 parts of odor removing filler and 20 parts of deionized water;
the environment-friendly odor-free adhesive for the wall decorative plate is prepared by the following method:
firstly, adding polyvinyl acetate and carrageenan into deionized water, heating in a water bath at 65 ℃, and uniformly stirring at a rotating speed of 150r/min for 30min to prepare a mixture;
and secondly, cooling the mixture to 40 ℃, then sequentially adding polyvinyl alcohol and a deodorizing filler, and stirring at a constant speed for 30min at the temperature to prepare the environment-friendly and odor-free adhesive for the wall decorative plate.
The odor removing filler is prepared by the following method:
step S1, dropwise adding a sodium hydroxide solution with the mass fraction of 10% into an aluminum chloride solution with the mass fraction of 10%, controlling the dropwise adding speed to be 1mL/min, stirring while dropwise adding, stirring at a constant speed of 150r/min for 1h after dropwise adding is completed, then aging at 35 ℃ for 1 day to prepare a mixed solution A, adding bentonite into deionized water, stirring at a constant speed until slurry is formed, then adding the mixed solution A, magnetically stirring for 2h, centrifuging, washing and drying to prepare treated bentonite, controlling the molar ratio of sodium hydroxide to aluminum chloride to be 2: 1, and controlling the weight ratio of bentonite to deionized water to be 1: 100: 10;
step S2, adding cellulose powder and sodium hydroxide into 10% by mass of urea aqueous solution cooled to-20 ℃, uniformly stirring to obtain homogeneous cellulose solution, then adding the treated bentonite prepared in step S1, uniformly stirring for 2 hours, then dropwise adding 5% by mass of dilute hydrochloric acid, controlling the dropwise adding speed to be 3mL/min, adding calcium chloride, uniformly stirring to obtain gel balls, filtering and washing with deionized water to be neutral to obtain the odor removal filler, and controlling the weight ratio of the cellulose, the sodium hydroxide, the urea aqueous solution, the treated bentonite, the 5% of dilute hydrochloric acid and the calcium chloride to be 5: 8: 100: 3: 1: 5.
Example 2
An environment-friendly odor-free adhesive for wall decorative plates comprises the following raw materials in parts by weight: 45 parts of polyvinyl acetate, 12 parts of polyvinyl alcohol, 4 parts of carrageenan, 20 parts of odor removing filler and 22 parts of deionized water;
the environment-friendly odor-free adhesive for the wall decorative plate is prepared by the following method:
firstly, adding polyvinyl acetate and carrageenan into deionized water, heating in a water bath at 65 ℃, and uniformly stirring at a rotating speed of 150r/min for 30min to prepare a mixture;
and secondly, cooling the mixture to 40 ℃, then sequentially adding polyvinyl alcohol and a deodorizing filler, and stirring at a constant speed for 30min at the temperature to prepare the environment-friendly and odor-free adhesive for the wall decorative plate.
The odor removing filler is prepared by the following method:
step S1, dropwise adding a sodium hydroxide solution with the mass fraction of 10% into an aluminum chloride solution with the mass fraction of 10%, controlling the dropwise adding speed to be 1mL/min, stirring while dropwise adding, stirring at a constant speed of 150r/min for 1h after dropwise adding is completed, then aging at 35 ℃ for 1 day to prepare a mixed solution A, adding bentonite into deionized water, stirring at a constant speed until slurry is formed, then adding the mixed solution A, magnetically stirring for 2h, centrifuging, washing and drying to prepare treated bentonite, controlling the molar ratio of sodium hydroxide to aluminum chloride to be 2: 1, and controlling the weight ratio of bentonite to deionized water to be 1: 100: 10;
step S2, adding cellulose powder and sodium hydroxide into 10% by mass of urea aqueous solution cooled to-20 ℃, uniformly stirring to obtain homogeneous cellulose solution, then adding the treated bentonite prepared in step S1, uniformly stirring for 2 hours, then dropwise adding 5% by mass of dilute hydrochloric acid, controlling the dropwise adding speed to be 3mL/min, adding calcium chloride, uniformly stirring to obtain gel balls, filtering and washing with deionized water to be neutral to obtain the odor removal filler, and controlling the weight ratio of the cellulose, the sodium hydroxide, the urea aqueous solution, the treated bentonite, the 5% of dilute hydrochloric acid and the calcium chloride to be 5: 8: 100: 3: 1: 5.
Example 3
An environment-friendly odor-free adhesive for wall decorative plates comprises the following raw materials in parts by weight: 50 parts of polyvinyl acetate, 16 parts of polyvinyl alcohol, 4 parts of carrageenan, 25 parts of odor removing filler and 25 parts of deionized water;
the environment-friendly odor-free adhesive for the wall decorative plate is prepared by the following method:
firstly, adding polyvinyl acetate and carrageenan into deionized water, heating in a water bath at 65 ℃, and uniformly stirring at a rotating speed of 150r/min for 30min to prepare a mixture;
and secondly, cooling the mixture to 40 ℃, then sequentially adding polyvinyl alcohol and a deodorizing filler, and stirring at a constant speed for 30min at the temperature to prepare the environment-friendly and odor-free adhesive for the wall decorative plate.
The odor removing filler is prepared by the following method:
step S1, dropwise adding a sodium hydroxide solution with the mass fraction of 10% into an aluminum chloride solution with the mass fraction of 10%, controlling the dropwise adding speed to be 1mL/min, stirring while dropwise adding, stirring at a constant speed of 150r/min for 1h after dropwise adding is completed, then aging at 35 ℃ for 1 day to prepare a mixed solution A, adding bentonite into deionized water, stirring at a constant speed until slurry is formed, then adding the mixed solution A, magnetically stirring for 2h, centrifuging, washing and drying to prepare treated bentonite, controlling the molar ratio of sodium hydroxide to aluminum chloride to be 2: 1, and controlling the weight ratio of bentonite to deionized water to be 1: 100: 10;
step S2, adding cellulose powder and sodium hydroxide into 10% by mass of urea aqueous solution cooled to-20 ℃, uniformly stirring to obtain homogeneous cellulose solution, then adding the treated bentonite prepared in step S1, uniformly stirring for 2 hours, then dropwise adding 5% by mass of dilute hydrochloric acid, controlling the dropwise adding speed to be 3mL/min, adding calcium chloride, uniformly stirring to obtain gel balls, filtering and washing with deionized water to be neutral to obtain the odor removal filler, and controlling the weight ratio of the cellulose, the sodium hydroxide, the urea aqueous solution, the treated bentonite, the 5% of dilute hydrochloric acid and the calcium chloride to be 5: 8: 100: 3: 1: 5.
Example 4
An environment-friendly odor-free adhesive for wall decorative plates comprises the following raw materials in parts by weight: 60 parts of polyvinyl acetate, 20 parts of polyvinyl alcohol, 5 parts of carrageenan, 30 parts of odor removing filler and 30 parts of deionized water;
the environment-friendly odor-free adhesive for the wall decorative plate is prepared by the following method:
firstly, adding polyvinyl acetate and carrageenan into deionized water, heating in a water bath at 65 ℃, and uniformly stirring at a rotating speed of 150r/min for 30min to prepare a mixture;
and secondly, cooling the mixture to 40 ℃, then sequentially adding polyvinyl alcohol and a deodorizing filler, and stirring at a constant speed for 30min at the temperature to prepare the environment-friendly and odor-free adhesive for the wall decorative plate.
The odor removing filler is prepared by the following method:
step S1, dropwise adding a sodium hydroxide solution with the mass fraction of 10% into an aluminum chloride solution with the mass fraction of 10%, controlling the dropwise adding speed to be 1mL/min, stirring while dropwise adding, stirring at a constant speed of 150r/min for 1h after dropwise adding is completed, then aging at 35 ℃ for 1 day to prepare a mixed solution A, adding bentonite into deionized water, stirring at a constant speed until slurry is formed, then adding the mixed solution A, magnetically stirring for 2h, centrifuging, washing and drying to prepare treated bentonite, controlling the molar ratio of sodium hydroxide to aluminum chloride to be 2: 1, and controlling the weight ratio of bentonite to deionized water to be 1: 100: 10;
step S2, adding cellulose powder and sodium hydroxide into 10% by mass of urea aqueous solution cooled to-20 ℃, uniformly stirring to obtain homogeneous cellulose solution, then adding the treated bentonite prepared in step S1, uniformly stirring for 2 hours, then dropwise adding 5% by mass of dilute hydrochloric acid, controlling the dropwise adding speed to be 3mL/min, adding calcium chloride, uniformly stirring to obtain gel balls, filtering and washing with deionized water to be neutral to obtain the odor removal filler, and controlling the weight ratio of the cellulose, the sodium hydroxide, the urea aqueous solution, the treated bentonite, the 5% of dilute hydrochloric acid and the calcium chloride to be 5: 8: 100: 3: 1: 5.
Comparative example 1
The comparative example is an activated carbon adhesive in the market.
The odour removal performance of examples 1 to 4 and comparative example 1 was tested and the results are shown in the following table:
the test is carried out according to the national standard GB21551.4-2010 special requirements of refrigerators with the functions of antibiosis, sterilization and purification of household and similar appliances.
| Example 1 | Example 2 | Example 3 | Example 4 | Comparative example 1 | |
| Methyl mercaptan% | 99.8 | 99.9 | 99.8 | 99.9 | 82.1 |
From the above table, it is found that the adsorption rate of examples 1 to 4 to methyl mercaptan is 99.8 to 99.9%, and the adsorption rate of comparative example 1 to methyl mercaptan is 82.1%; therefore, the surface of the cellulose is rough after the compounding, the holes are increased, the specific surface area is increased, the adsorption performance is excellent, the compound cellulose is used as a template, molecules can be firmly adsorbed on the template, the system is prevented from being unstable, and the odor in the air can be removed by the odor removing filler through the high adsorption of the odor removing filler.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is illustrative and explanatory only and is not intended to be exhaustive or to limit the invention to the precise embodiments described, and various modifications, additions, and substitutions may be made by those skilled in the art without departing from the scope of the invention or exceeding the scope of the claims.
Claims (5)
1. The environment-friendly odor-free adhesive for the wall decorative plate is characterized by comprising the following raw materials in parts by weight: 40-60 parts of polyvinyl acetate, 10-20 parts of polyvinyl alcohol, 3-5 parts of carrageenan, 15-30 parts of odor removing filler and 20-30 parts of deionized water;
the environment-friendly odor-free adhesive for the wall decorative plate is prepared by the following method:
firstly, adding polyvinyl acetate and carrageenan into deionized water, heating in a water bath at 65-80 ℃, and uniformly stirring at a rotating speed of 150-;
and secondly, cooling the mixture to 40-45 ℃, then sequentially adding polyvinyl alcohol and a deodorizing filler, and stirring at a constant speed for 30min at the temperature to prepare the environment-friendly odor-free adhesive for the wall decorative plate.
2. The environment-friendly odor-free adhesive for wall decorative plates as claimed in claim 1, wherein the solid content of the polyvinyl acetate is 30-35%, and the molecular weight of the polyvinyl alcohol is 3000-4000.
3. The environment-friendly odor-free adhesive for the wall decorative plate as claimed in claim 1, wherein the odor-removing filler is prepared by the following method:
step S1, dropwise adding a sodium hydroxide solution with the mass fraction of 10% into an aluminum chloride solution with the mass fraction of 10%, controlling the dropwise adding speed to be 1mL/min, stirring while dropwise adding, stirring at a constant speed of 150-;
step S2, adding cellulose powder and sodium hydroxide into a 10% by mass urea aqueous solution cooled to-20 ℃, uniformly stirring to obtain a homogeneous cellulose solution, then adding the treated bentonite prepared in the step S1, uniformly stirring for 2 hours, then dropwise adding dilute hydrochloric acid with the mass fraction of 5%, controlling the dropwise adding speed to be 3mL/min, adding calcium chloride, uniformly stirring to obtain gel balls, filtering, washing with deionized water to be neutral, and preparing the odor-removing filler.
4. The environment-friendly odorless adhesive for the wall decoration plate of claim 3, wherein the molar ratio of the sodium hydroxide to the aluminum chloride is controlled to be 2: 1 in the step S1, the weight ratio of the bentonite, the deionized water and the mixed solution A is controlled to be 1: 100: 10, and the weight ratio of the cellulose, the sodium hydroxide, the urea aqueous solution, the treated bentonite, the 5% diluted hydrochloric acid and the calcium chloride is controlled to be 5: 8: 100: 3: 1: 4-5 in the step S2.
5. The preparation method of the environment-friendly odor-free adhesive for the wall decorative plate according to claim 1, which is characterized by comprising the following steps:
firstly, adding polyvinyl acetate and carrageenan into deionized water, heating in a water bath at 65-80 ℃, and uniformly stirring at a rotating speed of 150-;
and secondly, cooling the mixture to 40-45 ℃, then sequentially adding polyvinyl alcohol and a deodorizing filler, and stirring at a constant speed for 30min at the temperature to prepare the environment-friendly odor-free adhesive for the wall decorative plate.
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| CN105219305A (en) * | 2015-09-17 | 2016-01-06 | 邢冬冬 | A kind of novel timber tackiness agent and preparation method thereof |
| CN107868631A (en) * | 2017-11-23 | 2018-04-03 | 江门市丁氏粘合剂实业有限公司 | A kind of environment-friendly wood assembling glue and preparation method thereof |
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