CN110408345B - High-stability wallpaper adhesive - Google Patents
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B15/00—Preparation of other cellulose derivatives or modified cellulose, e.g. complexes
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- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/52—Amides or imides
- C08F220/54—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide
- C08F220/56—Acrylamide; Methacrylamide
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- 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
- C09J101/00—Adhesives based on cellulose, modified cellulose, or cellulose derivatives
- C09J101/08—Cellulose derivatives
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- 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
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- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
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- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
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- 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
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Abstract
The invention discloses a high-stability wallpaper adhesive, and belongs to the field of chemical building materials. According to the invention, the homogeneous materials are prepared from diatomite, hexacyclic stone and the like, a large amount of diatomite components play a role in cation exchange, and exchange with cations contained in an organic compound, so that the internal stability is improved, the amphiphilic fiber polymer material is prepared by taking microcrystalline cellulose as a main component, chloro-1-allyl-3-methylimidazole as an ionic solvent and p-dioxanone as a grafting monomer, and the hydrophilic shell plays a role in stabilizing and dispersing micelles and protecting hydrophobic molecules from contacting with an environmental medium, so that good moisture resistance is provided; the moisture-proof material is prepared from acrylamide, methyl methacrylate and the like, so that the macromolecular polymer in the aqueous solution exceeds a certain mass concentration, and the hydrophobic parts are associated to form a dynamic three-dimensional network structure, thereby stabilizing the moisture-proof effect and improving the bonding strength of the wall adhesive. The invention solves the problems that the current common wallpaper glue is easy to be affected with damp and has low bonding stability.
Description
Technical Field
The invention belongs to the field of chemical building materials, and relates to a high-stability wallpaper adhesive.
Background
In recent years, wallpaper has become the first choice as a decoration material for beautifying indoor environment, and wallpaper glue is widely applied in the market as an adhesive for adhering wallpaper. The wallpaper adhesive is divided into two types of wet adhesive and rubber powder from the aspect of state, and the two types of the wallpaper adhesive have the advantages and have some disadvantages respectively. The wet glue has high initial adhesion and good adhesive property, and even some wallpaper with relatively thick and heavy adhesive is not easy to warp; however, the wet glue is troublesome to use and needs to be dissolved by adding water for several times; in addition, the proportion of the effective components is low, a large amount of water brings inconvenience to storage and transportation, the gel-opening performance of the frozen product in winter is poor, and the transportation cost is high. The wallpaper glue powder is an adhesive specially used for pasting wallpaper, is nontoxic and tasteless, is dampproof and mildewproof, has strong adhesive force, is smooth in scraping, can effectively prevent the wallpaper from cracking and falling off, and is suitable for both water-based walls and oil-based walls. The wallpaper glue powder is mainly starch, and the wallpaper powder is mixed with water to form glue for use, and the application is as follows: the wallpaper is firmly adhered to the wall, and if the inner wall is not seeped or artificially damaged, the normal wallpaper is not easy to fall off after being constructed and adhered. The wallpaper powder is used alone to paste the wallpaper, so that the wallpaper powder can be replaced easily, the surface of the wall body is damaged less, and convenience is brought to next pasting. The wallpaper glue powder is classified according to the purposes: common rubber powder, special rubber powder and rubber powder for a sizing machine; the following are classified according to the components: methylcellulose, starch, etc. Along with people's liking to the wall paper, some problems have appeared in the wall paper use equally, and the wall paper rubber powder does not have the shortcoming more than wet glue, but some wall paper rubber powder ubiquitous on the market easily wets, bonding strength is low, the easy limit problem that sticks up. At present, the adhesive powder is processed by a plurality of substitutes of potatoes such as corn, cassava and the like, so that the adhesive force of the adhesive powder is greatly reduced, polyvinyl alcohol (PVA) or cellulose is known to people in the modern technology as the adhesive, and the PVA can only be dissolved by hot water, is commonly used in medicine and is expensive, so that the PVA has no practical significance when being directly used on buildings. PVA and cellulose as cementing agent are both liquid cementing agent, and have short storage period, easy deterioration and high transportation and packing cost. The existing US patent US-3941730 uses PVA as main raw material, and uses polyose and carboxymethyl cellulose (CMC) as auxiliary materials to prepare prefabricated mixture, it can only be dissolved in hot water to form adhesive, and is not convenient enough, US-4764548 patent uses nitrocellulose and vinyl acetate or vinyl chloride to prepare water-soluble adhesive, Japanese patent laid-open No. 53-132042 is a kind of wall paper adhesive powder, it uses non-ionic cellulose ether and synthetic resin (EVA) as main raw materials, its process is unique, and its cost is high, Chinese patent CN-88102012 uses PVA, Polyacrylamide (PAM) and CMC to react at 70-80 deg.C for 0.5-1 hr, and is homogenized to obtain white colloid, belonging to daily-used chemical adhesive. The wallpaper adhesive which is relatively environment-friendly is mainly 'glutinous rice adhesive', and the 'glutinous rice adhesive' still has a plurality of problems: the product is not easy to store for a long time, the shelf life is about one year generally, and when the room temperature is lower than 5 ℃, gel is easy to generate to greatly reduce the viscosity; in the production process, in order to increase viscosity, white latex is often added, and the white latex belongs to petroleum derivatives, so that the use cost is high, the environment is not protected, and the odor of chemical monomers is remained indoors for a long time. Therefore, the wallpaper glue which is not easy to be affected with damp, has high bonding strength and is not easy to warp edges is urgently developed.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: aiming at the problems that the conventional wallpaper adhesive is easily affected with damp and has low bonding stability, the high-stability wallpaper adhesive is provided.
In order to solve the technical problems, the invention adopts the following technical scheme:
the high-stability wallpaper adhesive comprises the following components in parts by weight: 5~8 parts of epoxy resin, 1~3 parts of borax, 1~3 parts of sodium starch octenyl succinate, still include: 12-20 parts of a moisture-proof function material and 25-40 parts of a composite wallpaper adhesive base material.
The preparation of the moisture-proof material comprises the following steps: putting the mixture in an ice water bath, wherein the mass ratio of the mixture is 12-20: 1: mixing N, N-dihexylacrylamide, dodecyl dimethyl betaine and water, introducing nitrogen for protection, stirring to obtain a mixed solution, adding monomer liquid 2-4 times of the mixed solution in mass and urea 8-14% of the mixed solution in mass into the mixed solution, mixing, heating to 40-55 ℃, keeping the temperature, stirring, adding an initiator 2-5% of the mixed solution in mass, mixing, heating to 70-85 ℃, keeping the temperature, cooling, filtering, and taking a filter cake according to the mass ratio of 7-12: 3: 1 adding the pretreated guar gum and the auxiliary materials, mixing and grinding to obtain the moisture-proof working material.
The monomer liquid: according to the weight parts, 10-15 parts of acrylamide, 4-8 parts of methyl methacrylate, 1-3 parts of disodium ethylene diamine tetraacetate and 40-60 parts of sodium bicarbonate solution are mixed to obtain the monomer liquid.
The initiator is as follows: according to the mass ratio of 5: and 1-2, mixing potassium peroxide and sodium bisulfite to obtain the initiator.
The pre-treated guar: according to the mass ratio of 4-8: 1: and 30, mixing and stirring the guar gum, potassium sorbate and citric acid solution, and evaporating under reduced pressure to obtain the pretreated guar gum.
The auxiliary materials are as follows: according to the mass ratio of 1: 2-5: 3 mixing lactose, mannitol and microcrystalline cellulose to obtain adjuvant.
The preparation method of the composite wallpaper adhesive base material comprises the following steps:
(1) according to the mass ratio of 7: 1-3: 0.1: 30-50 taking diatomite, hexacyclic stone, a silane coupling agent KH-550 and an ethanol solution, mixing and stirring, dipping at room temperature, centrifuging, and collecting a centrifugate according to the mass ratio of 5-8: 2, adding an additive, mixing, carrying out hot mixing at 75-83 ℃, cooling, adding peregal O-25 with 7-12% of centrifugal substance, and mixing to obtain a homogeneous material;
(2) according to the weight parts, 25-40 parts of homogenizing material, 12-20 parts of fiber polymerization material, 2-5 parts of rosin, 3-7 parts of hydrogenated rosin and 70-90 parts of water are mixed, stirred at 45-65 ℃, added with a catalyst accounting for 1-4% of the homogenizing material, mixed, heated to 75-85 ℃, kept warm, and evaporated under reduced pressure to obtain a concentrate, wherein the concentrate is taken according to the mass ratio of 5-8: 1, adding castor oil, mixing, hot mixing at 40-55 ℃, and cooling to obtain the composite wallpaper adhesive base material.
The additive in the step (1): according to the mass ratio of 7: and 2-5, mixing the paraffin and sodium stearate to obtain the additive.
The catalyst in the step (2): according to the mass ratio of 3-7: 1, mixing stannous octoate and ferrocene to obtain the catalyst.
The fiber polymer material in the step (2): at 75-85 ℃, according to the mass ratio of 1: 20-30 mixing microcrystalline cellulose and chloro-1-allyl-3-methylimidazole, introducing nitrogen for protection, keeping the temperature and stirring to obtain a mixed material, heating to 120-140 ℃, and taking the mixed material according to a mass ratio of 10-15: 1: 1-3: 6, adding stannous octoate, lactide and p-dioxanone, mixing, carrying out heat preservation reaction, cooling to obtain a reaction material, and taking the reaction material according to the mass ratio of 3-6: 2 adding isopropanol, mixing, standing, filtering, collecting filter residue, and drying to obtain the fiber polymer material.
Compared with other methods, the method has the beneficial technical effects that:
(1) the invention adopts diatomite, hexacyclic stone and the like to prepare homogeneous materials, in the process, a larger amount of diatomite components can exert better cation exchange performance and can exchange with cations contained in organic compounds to improve the internal stability, the surface polarity of the diatomite components is regulated and controlled by a silane coupling agent, in the heating and blending process with paraffin and sodium stearate, through the volume expansion and the interaction between macromolecules, the heat treatment is carried out at a higher temperature to cooperatively regulate and control the water absorption and moisture absorption performance among the components, the moisture-proof effect is ensured, the added hexacyclic stone components can spontaneously generate negative ions to stably provide the antibacterial effect and ensure the long-term use of the wallpaper adhesive, and the amphiphilic fiber polymeric material is prepared by taking microcrystalline cellulose as a main component, chloro-1-allyl-3 methylimidazole as an ionic solvent and taking dioxanone as a grafting monomer, the nano micelle can be formed by self-assembly in an aqueous solution, and a viscous component is wrapped, so that the nano micelle can be stably dispersed, a hydrophobic inner core contained in the nano micelle can be used as a container of hydrophobic molecules, and a hydrophilic shell plays a role in stabilizing, dispersing and protecting the micelle from being contacted with an environmental medium, so that good moisture resistance is provided, the stability of a bonding effect is maintained, the nano micelle is not easy to damp, and the bonding performance is stably maintained;
(2) the invention uses acrylamide, methyl methacrylate and the like as raw materials to prepare the moisture-proof function material, leads macromolecular polymer in aqueous solution to exceed certain mass concentration, leads hydrophobic parts to be associated to form a dynamic three-dimensional network structure, thereby forming supermolecule chain aggregate, increasing the hydrodynamic volume of the polymer, showing the water stopping effect by water, stabilizing the moisture-proof function, improving the bonding strength of the wallpaper glue, simultaneously, containing larger content of amphiphilic components in the wallpaper glue, keeping good affinity with wallpaper and wall surface, providing moisture-proof guarantee well, leading the highly stable wallpaper glue to keep bonding property stably, improving the compatibility and stabilizing function among internal components, improving the resistance of glue coating, leading the construction to be smoother, leading the splashing not to occur in the coating process, leading the wallpaper to not warp edge after long-term use, the phenomenon of falling off;
(3) the invention combines the diatomite, the hexacyclic stone and the like to prepare the amphiphilic polymer, provides a moisture-proof effect while stabilizing the cohesive components of the cluster, and has obvious improvement effect and good application prospect aiming at the problems of easy wetting and low bonding stability of the current common wallpaper glue.
Detailed Description
Catalyst: according to the mass ratio of 3-7: 1, mixing stannous octoate and ferrocene to obtain the catalyst.
Monomer liquid: according to the weight parts, 10-15 parts of acrylamide, 4-8 parts of methyl methacrylate, 1-3 parts of disodium ethylene diamine tetraacetate and 40-60 parts of sodium bicarbonate solution with the mass fraction of 20% are mixed to obtain the monomer liquid.
Initiator: according to the mass ratio of 5: and 1-2, mixing potassium peroxide and sodium bisulfite to obtain the initiator.
Fiber polymerization material: at 75-85 ℃, according to the mass ratio of 1: 20-30 taking microcrystalline cellulose and 1-allyl-3-methylimidazole chloride to mix in a reaction kettle, introducing nitrogen for protection, keeping the temperature and stirring for 4-7 hours to obtain a mixed material, heating to 120-140 ℃, and taking the mixed material according to a mass ratio of 10-15: 1: 1-3: 6, adding stannous octoate, lactide and p-dioxanone, mixing, reacting for 5-8 hours under heat preservation, naturally cooling to room temperature to obtain a reaction material, and taking the reaction material according to the mass ratio of 3-6: 2, adding isopropanol, mixing, standing for 20-35 min, performing suction filtration, collecting filter residues, and drying in an oven at 60-75 ℃ for 5-8 h to obtain the fiber polymer material.
Additive: according to the mass ratio of 7: and 2-5, mixing the paraffin and sodium stearate to obtain the additive.
Auxiliary materials: according to the mass ratio of 1: 2-5: 3 mixing lactose, mannitol and microcrystalline cellulose to obtain adjuvant.
Pre-treating guar gum: according to the mass ratio of 4-8: 1: and 30, mixing and stirring the guar gum, potassium sorbate and a citric acid solution with the mass fraction of 14% for 1-3 hours, and evaporating under reduced pressure until the weight is constant to obtain the pretreated guar gum.
The preparation method of the composite wallpaper adhesive base material comprises the following steps:
(1) according to the mass ratio of 7: 1-3: 0.1: 30-50 taking diatomite, 120-mesh-sieve hexacyclic ring stone, a silane coupling agent KH-550 and 70% of ethanol solution, mixing and stirring, soaking at room temperature for 8-12 h, moving to a centrifugal machine, centrifuging for 7-13 min at 2000-4000 r/min, and collecting the centrifugate according to the mass ratio of 5-8: 2, adding an additive, mixing, carrying out hot mixing at 75-83 ℃ for 20-40 min, cooling to 25-45 ℃, adding peregal O-25 with the mass of 7-12% of the mass of a centrifuge, uniformly mixing, and homogenizing at 3.1-5.2 MPa for 7-13 min to obtain a homogenized material;
(2) according to the weight parts, 25-40 parts of homogenizing material, 12-20 parts of fiber polymerization material, 2-5 parts of rosin, 3-7 parts of hydrogenated rosin and 70-90 parts of water are mixed in a reaction kettle, stirred at 45-65 ℃ for 40-60 min, added with a catalyst accounting for 1-4% of the homogenizing material, mixed, heated to 75-85 ℃, kept for 1-3 h, and evaporated under reduced pressure to 25-40% of the original volume to obtain a concentrate, and the concentrate is taken according to the mass ratio of 5-8: 1, adding castor oil, mixing, hot mixing at 40-55 ℃ for 25-40 min, and naturally cooling to room temperature to obtain the composite wallpaper adhesive base material.
Preparing a moisture-proof material: putting the mixture in an ice water bath, wherein the mass ratio of the mixture is 12-20: 1: mixing N, N-dihexylacrylamide, dodecyl dimethyl betaine and water, introducing nitrogen for protection, magnetically stirring for 35-60 min at a speed of 350-550 r/min to obtain a mixed solution, adding monomer liquid 2-4 times of the mixed solution in mass and urea 8-14% of the mixed solution in mass into the mixed solution, heating to 40-55 ℃, stirring for 20-35 min at a constant temperature, adding an initiator 2-5% of the mixed solution in mass, mixing, heating to 70-85 ℃, keeping the temperature for 2-4 h, naturally cooling to room temperature, filtering, and taking a filter cake according to a mass ratio of 7-12: 3: 1, adding the pretreated guar gum and the auxiliary materials into a mortar for mixing, and grinding for 2-4 hours at the speed of 350-550 r/min to obtain the moisture-proof working material.
The high-stability wallpaper adhesive comprises the following components in parts by weight: 5-8 parts of epoxy resin, 1-3 parts of borax, 1-3 parts of sodium starch octenyl succinate, 12-20 parts of a moisture-proof material and 25-40 parts of a composite wallpaper adhesive base material.
Example 1
Catalyst: according to the mass ratio of 3: 1, mixing stannous octoate and ferrocene to obtain the catalyst.
Monomer liquid: according to the weight portion, 10 portions of acrylamide, 4 portions of methyl methacrylate, 1 portion of disodium ethylene diamine tetraacetate and 40 portions of sodium bicarbonate solution with the mass fraction of 20% are mixed to obtain the monomer liquid.
Initiator: according to the mass ratio of 5: 1, mixing potassium peroxide and sodium bisulfite to obtain the initiator.
Fiber polymerization material: at 75 ℃, according to the mass ratio of 1: 20, mixing microcrystalline cellulose and 1-allyl-3-methylimidazole chloride in a reaction kettle, introducing nitrogen for protection, keeping the temperature and stirring for 4 hours to obtain a mixed material, heating to 120 ℃, and taking the mixed material according to a mass ratio of 10: 1: 1: 6, adding stannous octoate, lactide and p-dioxanone, mixing, keeping the temperature, reacting for 5 hours, naturally cooling to room temperature to obtain a reaction material, and taking the reaction material according to the mass ratio of 3: 2 adding isopropanol, mixing, standing for 20min, performing suction filtration, collecting filter residue, and drying in an oven at 60 ℃ for 5h to obtain the fiber polymer material.
Additive: according to the mass ratio of 7: 2, mixing the paraffin and the sodium stearate to obtain the additive.
Auxiliary materials: according to the mass ratio of 1: 2: 3 mixing lactose, mannitol and microcrystalline cellulose to obtain adjuvant.
Pre-treating guar gum: according to the mass 4: 1: and 30, mixing and stirring the guar gum, potassium sorbate and a citric acid solution with the mass fraction of 14% for 1 hour, and evaporating under reduced pressure until the weight is constant to obtain the pretreated guar gum.
The preparation method of the composite wallpaper adhesive base material comprises the following steps:
(1) according to the mass ratio of 7: 1: 0.1: 30, mixing and stirring diatomite, 120-mesh-screened hexacyclic ring stone, a silane coupling agent KH-550 and 70% ethanol solution by volume fraction, soaking at room temperature for 8 hours, moving to a centrifugal machine, centrifuging at 2000r/min for 7min, and collecting a centrifugate according to the mass ratio of 5: 2 adding additives for mixing, carrying out hot mixing at 75 ℃ for 20min, cooling to 25 ℃, adding peregal O-25 with the mass of 7% of the centrifuge for uniformly mixing, and homogenizing at 3.1MPa for 7min to obtain a homogenized material;
(2) according to the weight portion, 25 portions of homogenizing material, 12 portions of fiber polymer material, 2 portions of rosin, 3 portions of hydrogenated rosin and 70 portions of water are mixed in a reaction kettle, stirred for 40min at 45 ℃, added with a catalyst accounting for 1% of the mass of the homogenizing material, mixed, heated to 75 ℃, kept for 1h, and evaporated under reduced pressure to 25% of the original volume to obtain a concentrate, and the concentrate is taken according to the mass ratio of 5: 1, adding castor oil, mixing at 40 ℃ for 25min, and naturally cooling to room temperature to obtain the composite wallpaper adhesive base material.
Preparing a moisture-proof material: putting the mixture into an ice water bath, wherein the mass ratio of the mixture is 12: 1: mixing N, N-dihexylacrylamide, dodecyl dimethyl betaine and water, introducing nitrogen for protection, magnetically stirring for 35min at a speed of 350r/min to obtain a mixed solution, adding a monomer solution 2 times the mass of the mixed solution and urea 8% of the mass of the mixed solution into the mixed solution, heating to 40 ℃, keeping the temperature, stirring for 20min, adding an initiator 2% of the mass of the mixed solution, mixing, heating to 70 ℃, keeping the temperature for 2h, naturally cooling to room temperature, filtering, and taking a filter cake according to a mass ratio of 7: 3: 1, adding the pretreated guar gum and the auxiliary materials into a mortar for mixing, and grinding for 2 hours at the speed of 350r/min to obtain the moisture-proof working material.
The high-stability wallpaper adhesive comprises the following components in parts by weight: 5 parts of epoxy resin, 1 part of borax, 1 part of sodium starch octenylsuccinate, 12 parts of a moisture-proof working material and 25 parts of a composite wallpaper adhesive base material.
Example 2
Catalyst: according to the mass ratio of 5: 1, mixing stannous octoate and ferrocene to obtain the catalyst.
Monomer liquid: according to the weight portion, 12 portions of acrylamide, 6 portions of methyl methacrylate, 2 portions of ethylene diamine tetraacetic acid disodium and 50 portions of sodium bicarbonate solution with the mass fraction of 20 percent are mixed to obtain the monomer liquid.
Initiator: according to the mass ratio of 5: 1.5 mixing potassium peroxide and sodium bisulfite to obtain the initiator.
Fiber polymerization material: at 80 ℃, according to the mass ratio of 1: 25 mixing microcrystalline cellulose and 1-allyl-3-methylimidazole chloride in a reaction kettle, introducing nitrogen for protection, keeping the temperature and stirring for 5 hours to obtain a mixed material, heating to 130 ℃, and taking the mixed material according to a mass ratio of 13: 1: 2: 6, adding stannous octoate, lactide and p-dioxanone, mixing, keeping the temperature, reacting for 6 hours, naturally cooling to room temperature to obtain a reaction material, and taking the reaction material according to a mass ratio of 5: 2 adding isopropanol, mixing, standing for 25min, performing suction filtration, collecting filter residue, and drying in a 65 ℃ oven for 7h to obtain the fiber polymer material.
Additive: according to the mass ratio of 7: and 3, mixing the paraffin and the sodium stearate to obtain the additive.
Auxiliary materials: according to the mass ratio of 1: 3: 3 mixing lactose, mannitol and microcrystalline cellulose to obtain adjuvant.
Pre-treating guar gum: according to the mass 6: 1: and 30, mixing and stirring the guar gum, potassium sorbate and a citric acid solution with the mass fraction of 14% for 2 hours, and evaporating under reduced pressure until the weight is constant to obtain the pretreated guar gum.
The preparation method of the composite wallpaper adhesive base material comprises the following steps:
(1) according to the mass ratio of 7: 2: 0.1: 40, mixing and stirring diatomite, 120-mesh-screened hexacyclic ring stone, a silane coupling agent KH-550 and 70% ethanol solution by volume fraction, soaking at room temperature for 10 hours, moving to a centrifugal machine, centrifuging at 3000r/min for 10min, collecting a centrifugate, and mixing the centrifugate with the following components in a mass ratio of 7: 2 adding additives for mixing, carrying out hot mixing at 80 ℃ for 30min, cooling to 35 ℃, adding peregal O-25 with the mass of 10% of the centrifuge for uniformly mixing, and homogenizing at 4.2MPa for 10min to obtain a homogenized material;
(2) according to the weight portion, 30 portions of homogenizing material, 15 portions of fiber polymer material, 3 portions of rosin, 4 portions of hydrogenated rosin and 80 portions of water are mixed in a reaction kettle, stirred for 50min at 55 ℃, added with a catalyst accounting for 3% of the mass of the homogenizing material, mixed, heated to 80 ℃, kept for 2h, and evaporated under reduced pressure to 30% of the original volume to obtain a concentrate, and the concentrate is taken according to the mass ratio of 6: 1, adding castor oil, mixing at 45 ℃ for 30min, and naturally cooling to room temperature to obtain the composite wallpaper adhesive base material.
Preparing a moisture-proof material: putting the mixture into an ice water bath, wherein the mass ratio of the mixture is 15: 1: mixing N, N-dihexylacrylamide, dodecyl dimethyl betaine and water, introducing nitrogen for protection, magnetically stirring for 50min at 450r/min to obtain a mixed solution, adding monomer solution with the mass 3 times that of the mixed solution and urea with the mass 12% of that of the mixed solution into the mixed solution, heating to 45 ℃, keeping the temperature and stirring for 25min, adding an initiator with the mass 3% of the mixed solution, mixing, heating to 75 ℃, keeping the temperature for 3h, naturally cooling to room temperature, filtering, and taking a filter cake according to the mass ratio of 9: 3: 1, adding the pretreated guar gum and the auxiliary materials into a mortar for mixing, and grinding for 3 hours at the speed of 450r/min to obtain the moisture-proof working material.
The high-stability wallpaper adhesive comprises the following components in parts by weight: 6 parts of epoxy resin, 2 parts of borax, 2 parts of sodium starch octenyl succinate, 15 parts of a moisture-proof working material and 30 parts of a composite wallpaper adhesive base material.
Example 3
Catalyst: according to the mass ratio of 7: 1, mixing stannous octoate and ferrocene to obtain the catalyst.
Monomer liquid: according to the weight portion, 15 portions of acrylamide, 8 portions of methyl methacrylate, 3 portions of ethylene diamine tetraacetic acid disodium and 60 portions of sodium bicarbonate solution with the mass fraction of 20% are mixed to obtain the monomer liquid.
Initiator: according to the mass ratio of 5: 2, mixing potassium peroxide and sodium bisulfite to obtain the initiator.
Fiber polymerization material: at 85 ℃, according to the mass ratio of 1: 30, mixing microcrystalline cellulose and 1-allyl-3-methylimidazole chloride in a reaction kettle, introducing nitrogen for protection, keeping the temperature and stirring for 7 hours to obtain a mixed material, heating to 140 ℃, and taking the mixed material according to a mass ratio of 15: 1: 3: 6, adding stannous octoate, lactide and p-dioxanone, mixing, keeping the temperature, reacting for 8 hours, naturally cooling to room temperature to obtain a reaction material, and taking the reaction material according to a mass ratio of 6: 2 adding isopropanol, mixing, standing for 35min, performing suction filtration, collecting filter residue, and drying in a 75 ℃ oven for 8h to obtain the fiber polymer material.
Additive: according to the mass ratio of 7: 5 mixing the paraffin wax and the sodium stearate to obtain the additive.
Auxiliary materials: according to the mass ratio of 1: 5: 3 mixing lactose, mannitol and microcrystalline cellulose to obtain adjuvant.
Pre-treating guar gum: according to the mass 8: 1: and 30, mixing and stirring the guar gum, potassium sorbate and a citric acid solution with the mass fraction of 14% for 3 hours, and evaporating under reduced pressure until the weight is constant to obtain the pretreated guar gum.
The preparation method of the composite wallpaper adhesive base material comprises the following steps:
(1) according to the mass ratio of 7: 3: 0.1: 50, mixing and stirring diatomite, 120-mesh-screened hexacyclic ring stone, a silane coupling agent KH-550 and 70% ethanol solution by volume fraction, soaking at room temperature for 12 hours, moving to a centrifugal machine, centrifuging for 13min at 4000r/min, and collecting a centrifugate according to the mass ratio of 8: 2 adding additives for mixing, carrying out hot mixing at 83 ℃ for 40min, cooling to 45 ℃, adding peregal O-25 with the mass of 12% of the centrifuge for uniformly mixing, and homogenizing at 5.2MPa for 13min to obtain a homogenized material;
(2) mixing 40 parts of homogenizing material, 20 parts of fiber polymer material, 5 parts of rosin, 7 parts of hydrogenated rosin and 90 parts of water in a reaction kettle, stirring at 65 ℃ for 60min, adding a catalyst accounting for 4% of the mass of the homogenizing material, mixing, heating to 85 ℃, preserving heat for 3h, and evaporating under reduced pressure to 40% of the original volume to obtain a concentrate, wherein the concentrate is prepared according to the mass ratio of 8: 1, adding castor oil, mixing at 55 ℃ for 40min, and naturally cooling to room temperature to obtain the composite wallpaper adhesive base material.
Preparing a moisture-proof material: putting the mixture into an ice water bath, wherein the mass ratio of the mixture is 20: 1: mixing N, N-dihexylacrylamide, dodecyl dimethyl betaine and water, introducing nitrogen for protection, magnetically stirring for 60min at 550r/min to obtain a mixed solution, adding a monomer solution with the mass 4 times that of the mixed solution and urea with the mass 14% of that of the mixed solution into the mixed solution, heating to 55 ℃, keeping the temperature and stirring for 35min, adding an initiator with the mass 5% of that of the mixed solution, mixing, heating to 85 ℃, keeping the temperature for 4h, naturally cooling to room temperature, filtering, and taking a filter cake according to the mass ratio of 12: 3: 1, adding the pretreated guar gum and the auxiliary materials into a mortar for mixing, and grinding for 4 hours at the speed of 550r/min to obtain the moisture-proof working material.
The high-stability wallpaper adhesive comprises the following components in parts by weight: 8 parts of epoxy resin, 3 parts of borax, 3 parts of sodium starch octenyl succinate, 20 parts of a moisture-proof working material and 40 parts of a composite wallpaper adhesive base material.
Comparative example 1: essentially the same procedure as in example 2, except for the absence of the moisture barrier material.
Comparative example 2: essentially the same procedure as in example 2 was followed except that the composite wallpaper adhesive base was absent.
Comparative example 3: high-stability wallpaper adhesive produced by a certain company in Shanghai.
The high-stability wallpaper adhesive obtained in the above embodiment and comparative example is detected, and the preparation work is as follows: respectively sticking the high-stability wallpaper adhesives prepared in the examples and the comparative examples on the wall, and testing the peel strength after the wallpaper adhesives are completely dried; testing an instrument: a tensile machine is adopted to test the peel strength, and the larger the peel strength is, the better the bonding strength is; the viscosity is tested by adopting an NDJ-1 rotational viscometer, and the higher the viscosity is, the thicker the state after the glue is opened is; the stronger the fixation during adhesion, the wall was wetted in rainy days and tested again, and the results obtained are shown in table 1.
Table 1:
in summary, it can be seen from table 1 that the stable wallpaper glue of the present invention is more effective and is worth popularizing, and the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (1)
1. The high-stability wallpaper adhesive comprises the following components in parts by weight: 5~8 parts of epoxy resin, 1~3 parts of borax, 1~3 parts of starch sodium octenyl succinate, its characterized in that still includes: 12-20 parts of a moisture-proof function material and 25-40 parts of a composite wallpaper adhesive base material;
the preparation of the moisture-proof material comprises the following steps: putting the mixture in an ice water bath, wherein the mass ratio of the mixture is 12-20: 1: mixing N, N-dihexylacrylamide, dodecyl dimethyl betaine and water, introducing nitrogen for protection, stirring to obtain a mixed solution, adding monomer liquid 2-4 times of the mixed solution in mass and urea 8-14% of the mixed solution in mass into the mixed solution, mixing, heating to 40-55 ℃, keeping the temperature, stirring, adding an initiator 2-5% of the mixed solution in mass, mixing, heating to 70-85 ℃, keeping the temperature, cooling, filtering, and taking a filter cake according to the mass ratio of 7-12: 3: 1, adding the pretreated guar gum and the auxiliary materials, mixing and grinding to obtain the moisture-proof working material; the monomer liquid: mixing 10-15 parts by weight of acrylamide, 4-8 parts by weight of methyl methacrylate, 1-3 parts by weight of disodium ethylene diamine tetraacetate and 40-60 parts by weight of sodium bicarbonate solution to obtain monomer liquid; the initiator is as follows: according to the mass ratio of 5: 1-2, mixing potassium peroxide and sodium bisulfite to obtain an initiator; the pre-treated guar: according to the mass ratio of 4-8: 1: 30 mixing and stirring guar gum, potassium sorbate and citric acid solution, and evaporating under reduced pressure to obtain pretreated guar gum; the auxiliary materials are as follows: according to the mass ratio of 1: 2-5: 3 mixing lactose, mannitol and microcrystalline cellulose to obtain adjuvant;
the preparation method of the composite wallpaper adhesive base material comprises the following steps:
(1) according to the mass ratio of 7: 1-3: 0.1: 30-50 taking diatomite, hexacyclic stone, a silane coupling agent KH-550 and an ethanol solution, mixing and stirring, dipping at room temperature, centrifuging, and collecting a centrifugate according to the mass ratio of 5-8: 2, adding an additive, mixing, carrying out hot mixing at 75-83 ℃, cooling, adding peregal O-25 with 7-12% of centrifugal substance, and mixing to obtain a homogeneous material; the additive is as follows: according to the mass ratio of 7: 2-5, mixing paraffin and sodium stearate to obtain an additive;
(2) according to the weight parts, 25-40 parts of homogenizing material, 12-20 parts of fiber polymerization material, 2-5 parts of rosin, 3-7 parts of hydrogenated rosin and 70-90 parts of water are mixed, stirred at 45-65 ℃, added with a catalyst accounting for 1-4% of the homogenizing material, mixed, heated to 75-85 ℃, kept warm, and evaporated under reduced pressure to obtain a concentrate, wherein the concentrate is taken according to the mass ratio of 5-8: 1, adding castor oil, mixing, hot mixing at 40-55 ℃, and cooling to obtain a composite wallpaper adhesive base material; the catalyst comprises the following components: according to the mass ratio of 3-7: 1, mixing stannous octoate and ferrocene to obtain a catalyst; the fiber polymer material comprises: at 75-85 ℃, according to the mass ratio of 1: 20-30 mixing microcrystalline cellulose and chloro-1-allyl-3-methylimidazole, introducing nitrogen for protection, keeping the temperature and stirring to obtain a mixed material, heating to 120-140 ℃, and taking the mixed material according to a mass ratio of 10-15: 1: 1-3: 6, adding stannous octoate, lactide and p-dioxanone, mixing, carrying out heat preservation reaction, cooling to obtain a reaction material, and taking the reaction material according to the mass ratio of 3-6: 2 adding isopropanol, mixing, standing, filtering, collecting filter residue, and drying to obtain the fiber polymer material.
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| KR20180111391A (en) * | 2017-04-02 | 2018-10-11 | 이종영 | Composition that combines flame resistance and antistatic, antibacterial, antifungal, prevention of corruption, anti-condensation, heat insulation, humidity control, anti-foaming, and applications using them |
| CN109486440A (en) * | 2018-10-24 | 2019-03-19 | 安徽金田彩印包装有限公司 | A kind of corrugated board glue special |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2005179516A (en) * | 2003-12-19 | 2005-07-07 | Asahi Denka Kogyo Kk | Epoxy resin composition |
| CN105400471A (en) * | 2015-12-11 | 2016-03-16 | 苏州冰心文化用品有限公司 | Glue rod material capable of improving low-temperature glueyness and preparation method thereof |
| KR20180111391A (en) * | 2017-04-02 | 2018-10-11 | 이종영 | Composition that combines flame resistance and antistatic, antibacterial, antifungal, prevention of corruption, anti-condensation, heat insulation, humidity control, anti-foaming, and applications using them |
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