CN110734723A - wood craft strong adhesive and preparation method thereof - Google Patents
wood craft strong adhesive and preparation method thereof Download PDFInfo
- Publication number
- CN110734723A CN110734723A CN201911088173.2A CN201911088173A CN110734723A CN 110734723 A CN110734723 A CN 110734723A CN 201911088173 A CN201911088173 A CN 201911088173A CN 110734723 A CN110734723 A CN 110734723A
- Authority
- CN
- China
- Prior art keywords
- stirring
- phenolic resin
- solution
- modified phenolic
- prepare
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
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
- C09J161/00—Adhesives based on condensation polymers of aldehydes or ketones; Adhesives based on derivatives of such polymers
- C09J161/34—Condensation polymers of aldehydes or ketones with monomers covered by at least two of the groups C09J161/04, C09J161/18 and C09J161/20
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G14/00—Condensation polymers of aldehydes or ketones with two or more other monomers covered by at least two of the groups C08G8/00 - C08G12/00
- C08G14/02—Condensation polymers of aldehydes or ketones with two or more other monomers covered by at least two of the groups C08G8/00 - C08G12/00 of aldehydes
- C08G14/04—Condensation polymers of aldehydes or ketones with two or more other monomers covered by at least two of the groups C08G8/00 - C08G12/00 of aldehydes with phenols
- C08G14/06—Condensation polymers of aldehydes or ketones with two or more other monomers covered by at least two of the groups C08G8/00 - C08G12/00 of aldehydes with phenols and monomers containing hydrogen attached to nitrogen
- C08G14/08—Ureas; Thioureas
-
- 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
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
-
- 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
Abstract
The invention discloses wood craft strong adhesives, which are prepared from the following raw materials, by weight, 15-25 parts of lignin, 20-30 parts of modified phenolic resin glue, 5-8 parts of polyvinyl alcohol, 2-6 parts of emulsifying agent, 0.8-1.5 parts of initiator, 0.5-1.0 part of methacrylic acid, 0.1-0.5 part of diethyl phthalate and 0.1-0.2 part of sodium benzoate, and a preparation method of wood craft strong adhesives.
Description
Technical Field
The invention relates to adhesives, in particular to a wood craft strong adhesive and a preparation method thereof.
Background
The adhesive for bamboo and wood products is used for adhering the surfaces of wood and wood or wood and other objects into bodies by means of adhesive bonding, and is necessary in the processing industry of bamboo and wood products, such as plywood, shaving board, medium density fiberboard, laminated products, decorative covering panels, laminated wood boards and the like.
Chinese invention patent CN104371606B discloses kinds of adhesives containing bamboo charcoal powder, which are composed of, by weight, 70-95 parts of elastic glue, 25-35 parts of phthalic anhydride, 7-11 parts of furfuryl alcohol extracted from natural plants, 10-12 parts of triethylene glycol, 15-18 parts of glutaric acid, 8-10 parts of butanetriol, 5-7 parts of zinc oxide powder, 3-5 parts of magnesium oxide, 15-25 parts of chloroprene rubber, 2-3 parts of softening oil, 15-20 parts of dimethyl carbonate, 1-3 parts of benzoyl peroxide, 4-8 parts of ethyl acetate, 1-4 parts of emulsifier, 20-30 parts of flour, 5 x 10 parts of nano-silver5-9×105The bamboo charcoal powder is prepared by the steps of raw material pretreatment, primary charcoal preparation, activation treatment and granulation, wherein the elastic glue comprises th elastic glue and second elastic glue which are mixed according to the weight ratio of 1-3: 1.
Disclosure of Invention
In order to overcome the technical problems, the invention provides kinds of strong adhesives for wood artware and a preparation method thereof.
The technical problems to be solved by the invention are as follows:
(1) when the existing adhesive acts on the wooden handicraft, the existing adhesive cannot be distributed around the wood fiber and among the fine fibers in the wood fiber, so that a strong skeleton structure cannot be formed at the joint, and the existing adhesive has poor adhesion effect on the wooden handicraft and cannot be adhered for a long time;
(2) the phenolic resin does not have many active points capable of curing and crosslinking, so that the crosslinking degree after curing cannot be obviously improved, and the adhesive prepared by the phenolic resin does not have excellent bonding strength and cannot be used in various fields.
The purpose of the invention can be realized by the following technical scheme:
kinds of wood craft strong adhesive, which is prepared by the following raw materials, by weight, 15-25 parts of lignin, 20-30 parts of modified phenolic resin glue, 5-8 parts of polyvinyl alcohol, 2-6 parts of emulsifier, 0.8-1.5 parts of initiator, 0.5-1.0 part of methacrylic acid, 0.1-0.5 part of diethyl phthalate, 0.1-0.2 part of sodium benzoate;
the wood craft strong adhesive is prepared by the following method:
step S1, adding an initiator into deionized water, stirring at a constant speed for 5min to prepare an initiator solution as solution A for later use, then adding polyvinyl alcohol and lignin into the deionized water, stirring at a constant speed for 5min to prepare a mixed solution as solution B for later use, and controlling the weight ratio of the initiator to the deionized water to be 1: 12 and the weight ratio of the polyvinyl alcohol to the deionized water to be 1: 15;
step S2, heating the liquid B to 95 ℃, stirring for 10min at the rotating speed of 120r/min, adding methacrylic acid, cooling to 45 ℃, adding an emulsifier, continuing to stir for 10min, adding the liquid A prepared in the step S1, heating to 60 ℃, adding a modified phenolic resin adhesive, stirring for 10min at the rotating speed of 250r/min, and preserving heat for 30min to prepare a mixture;
and S3, adding diethyl phthalate and sodium benzoate into the mixture prepared in the step S2, and stirring at a constant speed for 30min to prepare the wood craft strong adhesive.
, the modified phenolic resin glue is prepared by the following method:
(1) adding phenol and formaldehyde into a three-neck flask, adding 10% sodium hydroxide solution to adjust the pH until the pH is 7.8-8.0, stirring at a rotating speed of 180r/min, heating to 60 ℃, stirring for 30min, adding urea to react for 30min, heating to 80 ℃, adding resorcinol, continuing to stir by magnetic force until the viscosity is 200-500mPa & s, preparing a modified phenolic resin glue solution, and controlling the weight ratio of the phenol, the resorcinol, the formaldehyde and the urea to be 2: 0.02: 4: 1;
(2) adding flour into the modified phenolic resin glue solution, heating to 45 ℃, carrying out magnetic stirring at the rotating speed of 220r/min, controlling the stirring time to be 15min, then adding bamboo charcoal powder, heating to 55 ℃, continuing stirring, keeping the temperature for 2h, then adding gelatin, carrying out magnetic stirring at the rotating speed of 250r/min until the viscosity is 500-800mPa & s, and preparing the modified phenolic resin glue, wherein the weight ratio of the modified phenolic resin glue solution to the flour to the bamboo charcoal powder is controlled to be 20: 3: 2.
In the step (1), phenol and formaldehyde are mixed, 10% sodium hydroxide solution is added to provide alkaline environments, urea is added to form phenolic resin, resorcinol is added, active hydrogen on the resorcinol can perform polycondensation reaction with hydroxymethyl phenol on the phenolic resin to form methylene and water, modified phenolic resin is formed, the modified phenolic resin has more active points capable of performing curing and crosslinking, the crosslinking degree after curing can be obviously improved, the bonding strength of the modified phenolic resin can be obviously improved, the number of macromolecular polymers in the system can be increased by adding the resorcinol due to the fact that the resorcinol and groups on the formed phenolic resin are large in polycondensation degree, the viscosity of the finally prepared modified phenolic resin can be increased, and the bonding strength of the modified phenolic resin can be further increased by steps by adding flour and bamboo charcoal powder as fillers in a ratio of 3: 2.
, the initiator is or both of ammonium persulfate and sodium persulfate.
, the emulsifier is one or two of sulfosuccinate derivative, acrylamido isopropyl sulfonic acid, and sodium salt of alkylphenol ether sulfosuccinate ().
A method for preparing strong adhesive for wooden handicraft articles, which comprises the following steps:
step S1, adding an initiator into deionized water, stirring at a constant speed for 5min to prepare an initiator solution as solution A for later use, then adding polyvinyl alcohol and lignin into the deionized water, stirring at a constant speed for 5min to prepare a mixed solution as solution B for later use, and controlling the weight ratio of the initiator to the deionized water to be 1: 12 and the weight ratio of the polyvinyl alcohol to the deionized water to be 1: 15;
step S2, heating the liquid B to 95 ℃, stirring for 10min at the rotating speed of 120r/min, adding methacrylic acid, cooling to 45 ℃, adding an emulsifier, continuing to stir for 10min, adding the liquid A prepared in the step S1, heating to 60 ℃, adding a modified phenolic resin adhesive, stirring for 10min at the rotating speed of 250r/min, and preserving heat for 30min to prepare a mixture;
and S3, adding diethyl phthalate and sodium benzoate into the mixture prepared in the step S2, and stirring at a constant speed for 30min to prepare the wood craft strong adhesive.
The invention has the beneficial effects that:
(1) wood craft strong adhesive is prepared by taking lignin, modified phenolic resin glue and the like as raw materials, an initiator solution and a mixed solution are prepared in step S1 in the preparation process, then the modified phenolic resin glue is added in step S2, the lignin and the phenolic resin are macromolecular compounds containing benzene rings, free vacancies capable of reacting are arranged on the benzene rings, crosslinking can be generated in step , after the lignin and the modified phenolic resin glue are mixed, the lignin and the modified phenolic resin glue can be crosslinked with the modified phenolic resin glue under the initiation of the initiator solution, the stability of a system is guaranteed, when the finally prepared adhesive acts on wood craft, the adhesive can be distributed around fibers of wood wares and among tiny fibers in the wood wares, a strong framework structure can be formed at the connecting position, an excellent adhesive effect can be further guaranteed, the technical problem that when the existing adhesive acts on wood craft, the adhesive cannot be distributed around the fibers of wood wares and among tiny fibers in the fibers, the connecting position cannot be formed into a strong framework structure, the adhesive effect on the wood craft is not good for a long time, and the technical problem that the adhesive cannot be bonded;
(2) in the process of preparing the modified phenolic resin glue, in the step (1), phenol and formaldehyde are mixed, 10% of sodium hydroxide solution is added to provide alkaline environments, then urea is added to form phenolic resin, resorcinol is added, active hydrogen on the resorcinol can perform polycondensation reaction with hydroxymethyl phenol on the phenolic resin to form methylene and water, the modified phenolic resin is formed, the modified phenolic resin has more active points capable of performing curing and crosslinking, so that the crosslinking degree after curing can be obviously improved, the bonding strength of the modified phenolic resin can be obviously improved, in addition, the resorcinol is added to the formed phenolic resin to improve the number of macromolecular polymers in the system due to the fact that the condensation degree of the resorcinol and the groups on the formed phenolic resin is large, so that the viscosity of the finally prepared modified phenolic resin glue can be improved, in the step (2), flour and bamboo charcoal powder are added according to the ratio of 3: 2 to serve as fillers, the viscosity of the finally prepared modified phenolic resin glue can be improved, further, the bonding strength of the modified phenolic resin is improved, and the problems that the phenolic resin does not have a plurality of adhesive strength which cannot be obviously improved after curing and can not be used in the bonding technology are solved.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only partial embodiments of of the present invention, rather than all embodiments.
Example 1
kinds of wood craft strong adhesive, which is made of the following raw materials, by weight, 15 parts of lignin, 20 parts of modified phenolic resin glue, 5 parts of polyvinyl alcohol, 2 parts of acrylamido isopropyl sulfonic acid, 0.8 part of sodium persulfate, 0.5 part of methacrylic acid, 0.1 part of diethyl phthalate, 0.1 part of sodium benzoate;
the wood craft strong adhesive is prepared by the following method:
step S1, adding sodium persulfate into deionized water, stirring at a constant speed for 5min to prepare a sodium persulfate solution serving as a solution A for later use, then adding polyvinyl alcohol and lignin into deionized water, stirring at a constant speed for 5min to prepare a mixed solution serving as a solution B for later use, and controlling the weight ratio of the sodium persulfate to the deionized water to be 1: 12 and the weight ratio of the polyvinyl alcohol to the deionized water to be 1: 15;
s2, heating the liquid B to 95 ℃, stirring at the rotating speed of 120r/min for 10min, adding methacrylic acid, cooling to 45 ℃, adding acrylamide isopropyl sulfonic acid, continuing stirring for 10min, adding the liquid A prepared in the step S1, heating to 60 ℃, adding the modified phenolic resin adhesive, stirring at the rotating speed of 250r/min for 10min, and preserving heat for 30min to prepare a mixture;
and S3, adding diethyl phthalate and sodium benzoate into the mixture prepared in the step S2, and stirring at a constant speed for 30min to prepare the wood craft strong adhesive.
The modified phenolic resin adhesive is prepared by the following method:
(1) adding phenol and formaldehyde into a three-neck flask, adding 10% sodium hydroxide solution to adjust the pH until the pH is 7.8-8.0, stirring at a rotating speed of 180r/min, heating to 60 ℃, stirring for 30min, adding urea to react for 30min, heating to 80 ℃, adding resorcinol, continuing to stir by magnetic force until the viscosity is 200-500mPa & s, preparing a modified phenolic resin glue solution, and controlling the weight ratio of the phenol, the resorcinol, the formaldehyde and the urea to be 2: 0.02: 4: 1;
(2) adding flour into the modified phenolic resin glue solution, heating to 45 ℃, carrying out magnetic stirring at the rotating speed of 220r/min, controlling the stirring time to be 15min, then adding bamboo charcoal powder, heating to 55 ℃, continuing stirring, keeping the temperature for 2h, then adding gelatin, carrying out magnetic stirring at the rotating speed of 250r/min until the viscosity is 500-800mPa & s, and preparing the modified phenolic resin glue, wherein the weight ratio of the modified phenolic resin glue solution to the flour to the bamboo charcoal powder is controlled to be 20: 3: 2.
Example 2
kinds of wood craft strong adhesive, which is made from the following raw materials, by weight, 18 parts of lignin, 22 parts of modified phenolic resin glue, 6 parts of polyvinyl alcohol, 4 parts of acrylamido isopropyl sulfonic acid, 1.0 part of sodium persulfate, 0.8 part of methacrylic acid, 0.3 part of diethyl phthalate, 0.1 part of sodium benzoate;
the wood craft strong adhesive is prepared by the following method:
step S1, adding sodium persulfate into deionized water, stirring at a constant speed for 5min to prepare a sodium persulfate solution serving as a solution A for later use, then adding polyvinyl alcohol and lignin into deionized water, stirring at a constant speed for 5min to prepare a mixed solution serving as a solution B for later use, and controlling the weight ratio of the sodium persulfate to the deionized water to be 1: 12 and the weight ratio of the polyvinyl alcohol to the deionized water to be 1: 15;
s2, heating the liquid B to 95 ℃, stirring at the rotating speed of 120r/min for 10min, adding methacrylic acid, cooling to 45 ℃, adding acrylamide isopropyl sulfonic acid, continuing stirring for 10min, adding the liquid A prepared in the step S1, heating to 60 ℃, adding the modified phenolic resin adhesive, stirring at the rotating speed of 250r/min for 10min, and preserving heat for 30min to prepare a mixture;
and S3, adding diethyl phthalate and sodium benzoate into the mixture prepared in the step S2, and stirring at a constant speed for 30min to prepare the wood craft strong adhesive.
Example 3
kinds of wood craft strong adhesive, which is prepared by the following raw materials, by weight, 20 parts of lignin, 26 parts of modified phenolic resin glue, 7 parts of polyvinyl alcohol, 5 parts of acrylamido isopropyl sulfonic acid, 1.2 parts of sodium persulfate, 0.8 part of methacrylic acid, 0.4 part of diethyl phthalate, and 0.2 part of sodium benzoate;
the wood craft strong adhesive is prepared by the following method:
step S1, adding sodium persulfate into deionized water, stirring at a constant speed for 5min to prepare a sodium persulfate solution serving as a solution A for later use, then adding polyvinyl alcohol and lignin into deionized water, stirring at a constant speed for 5min to prepare a mixed solution serving as a solution B for later use, and controlling the weight ratio of the sodium persulfate to the deionized water to be 1: 12 and the weight ratio of the polyvinyl alcohol to the deionized water to be 1: 15;
s2, heating the liquid B to 95 ℃, stirring at the rotating speed of 120r/min for 10min, adding methacrylic acid, cooling to 45 ℃, adding acrylamide isopropyl sulfonic acid, continuing stirring for 10min, adding the liquid A prepared in the step S1, heating to 60 ℃, adding the modified phenolic resin adhesive, stirring at the rotating speed of 250r/min for 10min, and preserving heat for 30min to prepare a mixture;
and S3, adding diethyl phthalate and sodium benzoate into the mixture prepared in the step S2, and stirring at a constant speed for 30min to prepare the wood craft strong adhesive.
Example 4
kinds of wood craft strong adhesive, which is made from the following raw materials, by weight, 25 parts of lignin, 30 parts of modified phenolic resin glue, 8 parts of polyvinyl alcohol, 6 parts of acrylamido isopropyl sulfonic acid, 1.5 parts of sodium persulfate, 1.0 part of methacrylic acid, 0.5 part of diethyl phthalate, 0.2 part of sodium benzoate;
the wood craft strong adhesive is prepared by the following method:
step S1, adding sodium persulfate into deionized water, stirring at a constant speed for 5min to prepare a sodium persulfate solution serving as a solution A for later use, then adding polyvinyl alcohol and lignin into deionized water, stirring at a constant speed for 5min to prepare a mixed solution serving as a solution B for later use, and controlling the weight ratio of the sodium persulfate to the deionized water to be 1: 12 and the weight ratio of the polyvinyl alcohol to the deionized water to be 1: 15;
s2, heating the liquid B to 95 ℃, stirring at the rotating speed of 120r/min for 10min, adding methacrylic acid, cooling to 45 ℃, adding acrylamide isopropyl sulfonic acid, continuing stirring for 10min, adding the liquid A prepared in the step S1, heating to 60 ℃, adding the modified phenolic resin adhesive, stirring at the rotating speed of 250r/min for 10min, and preserving heat for 30min to prepare a mixture;
and S3, adding diethyl phthalate and sodium benzoate into the mixture prepared in the step S2, and stirring at a constant speed for 30min to prepare the wood craft strong adhesive.
Comparative example 1
Compared with example 1, the preparation method of the comparative example, which replaces the modified phenolic resin glue with the phenolic resin, is as follows:
step S1, adding sodium persulfate into deionized water, stirring at a constant speed for 5min to prepare a sodium persulfate solution serving as a solution A for later use, then adding polyvinyl alcohol and lignin into deionized water, stirring at a constant speed for 5min to prepare a mixed solution serving as a solution B for later use, and controlling the weight ratio of the sodium persulfate to the deionized water to be 1: 12 and the weight ratio of the polyvinyl alcohol to the deionized water to be 1: 15;
s2, heating the liquid B to 95 ℃, stirring at the rotating speed of 120r/min for 10min, adding methacrylic acid, cooling to 45 ℃, adding acrylamide isopropyl sulfonic acid, continuing stirring for 10min, adding the liquid A prepared in the step S1, heating to 60 ℃, adding phenolic resin, stirring at the rotating speed of 250r/min for 10min, and preserving heat for 30min to prepare a mixture;
and S3, adding diethyl phthalate and sodium benzoate into the mixture prepared in the step S2, and stirring at a constant speed for 30min to prepare the wood craft strong adhesive.
Comparative example 2
The comparative example is wood product adhesives in the market.
The examples 1 to 4 and comparative examples 1 to 2 were subjected to the performance test, and the results are shown in the following table;
from the above table, it can be seen that the viscosity of the modified phenolic resin prepared by the invention is 880-895 mPas, the dry shear strength is 10.6-10.8MPa, the wet shear strength is 3.6-3.9MPa, the viscosity of the comparative examples 1-2 is 680-756 mPas, the dry shear strength is 8.5-9.0MPa, and the wet shear strength is 2.8-3.0MPa, so that the modified phenolic resin glue prepared by the invention has higher viscosity, the gluing strength of the modified phenolic resin is further enhanced by , and the technical problems that the phenolic resin does not have more active points capable of generating curing crosslinking, the crosslinking degree after curing cannot be obviously improved, and the adhesive prepared by the modified phenolic resin does not have excellent gluing strength and cannot be used in various fields are solved.
In the description herein, reference to the term " embodiments," "examples," "specific examples," or the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least embodiments or examples of the invention.
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)
- The kinds of powerful adhesive for wooden handicraft is prepared with lignin 15-25 weight portions, modified phenolic resin glue 20-30 weight portions, polyvinyl alcohol 5-8 weight portions, emulsifier 2-6 weight portions, initiator 0.8-1.5 weight portions, methacrylic acid 0.5-1.0 weight portions, diethyl phthalate 0.1-0.5 weight portions, and sodium benzoate 0.1-0.2 weight portions;the wood craft strong adhesive is prepared by the following method:step S1, adding an initiator into deionized water, stirring at a constant speed for 5min to prepare an initiator solution as solution A for later use, then adding polyvinyl alcohol and lignin into the deionized water, stirring at a constant speed for 5min to prepare a mixed solution as solution B for later use, and controlling the weight ratio of the initiator to the deionized water to be 1: 12 and the weight ratio of the polyvinyl alcohol to the deionized water to be 1: 15;step S2, heating the liquid B to 95 ℃, stirring for 10min at the rotating speed of 120r/min, adding methacrylic acid, cooling to 45 ℃, adding an emulsifier, continuing to stir for 10min, adding the liquid A prepared in the step S1, heating to 60 ℃, adding a modified phenolic resin adhesive, stirring for 10min at the rotating speed of 250r/min, and preserving heat for 30min to prepare a mixture;and S3, adding diethyl phthalate and sodium benzoate into the mixture prepared in the step S2, and stirring at a constant speed for 30min to prepare the wood craft strong adhesive.
- 2. The wood based craft strong adhesive of claim 1, wherein the modified phenolic resin glue is prepared by the following method:(1) adding phenol and formaldehyde into a three-neck flask, adding 10% sodium hydroxide solution to adjust the pH until the pH is 7.8-8.0, stirring at a rotating speed of 180r/min, heating to 60 ℃, stirring for 30min, adding urea to react for 30min, heating to 80 ℃, adding resorcinol, continuing to stir by magnetic force until the viscosity is 200-500mPa & s, preparing a modified phenolic resin glue solution, and controlling the weight ratio of the phenol, the resorcinol, the formaldehyde and the urea to be 2: 0.02: 4: 1;(2) adding flour into the modified phenolic resin glue solution, heating to 45 ℃, carrying out magnetic stirring at the rotating speed of 220r/min, controlling the stirring time to be 15min, then adding bamboo charcoal powder, heating to 55 ℃, continuing stirring, keeping the temperature for 2h, then adding gelatin, carrying out magnetic stirring at the rotating speed of 250r/min until the viscosity is 500-800mPa & s, and preparing the modified phenolic resin glue, wherein the weight ratio of the modified phenolic resin glue solution to the flour to the bamboo charcoal powder is controlled to be 20: 3: 2.
- 3. The wood based craft strong adhesives of claim 1, wherein the initiator is or both of ammonium persulfate and sodium persulfate.
- 4. The wood based craft strong adhesive of claim 1, wherein the emulsifier is or two of sulfosuccinate derivatives, acrylamido isopropyl sulfonic acid, and sodium salt of alkylphenol ether sulfosuccinate.
- The preparation method of the strong adhesive for the wood artware is characterized by comprising the following steps:step S1, adding an initiator into deionized water, stirring at a constant speed for 5min to prepare an initiator solution as solution A for later use, then adding polyvinyl alcohol and lignin into the deionized water, stirring at a constant speed for 5min to prepare a mixed solution as solution B for later use, and controlling the weight ratio of the initiator to the deionized water to be 1: 12 and the weight ratio of the polyvinyl alcohol to the deionized water to be 1: 15;step S2, heating the liquid B to 95 ℃, stirring for 10min at the rotating speed of 120r/min, adding methacrylic acid, cooling to 45 ℃, adding an emulsifier, continuing to stir for 10min, adding the liquid A prepared in the step S1, heating to 60 ℃, adding a modified phenolic resin adhesive, stirring for 10min at the rotating speed of 250r/min, and preserving heat for 30min to prepare a mixture;and S3, adding diethyl phthalate and sodium benzoate into the mixture prepared in the step S2, and stirring at a constant speed for 30min to prepare the wood craft strong adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911088173.2A CN110734723A (en) | 2019-11-08 | 2019-11-08 | wood craft strong adhesive and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911088173.2A CN110734723A (en) | 2019-11-08 | 2019-11-08 | wood craft strong adhesive and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110734723A true CN110734723A (en) | 2020-01-31 |
Family
ID=69272462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911088173.2A Withdrawn CN110734723A (en) | 2019-11-08 | 2019-11-08 | wood craft strong adhesive and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110734723A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112662352A (en) * | 2020-12-07 | 2021-04-16 | 浙江农林大学 | Special phenolic resin adhesive for bamboo gluing and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1670104A (en) * | 2005-03-02 | 2005-09-21 | 上海市建筑科学研究院有限公司 | Low-release aldehyde adhesive and its preparation method and use |
| CN101200549A (en) * | 2007-12-04 | 2008-06-18 | 中国林业科学研究院木材工业研究所 | Method for preparing modified urea-formaldehyde resin powder material |
| CN103865018A (en) * | 2014-04-09 | 2014-06-18 | 中南林业科技大学 | Matrix resin and adhesive for structure laminated wood |
| CN104762043A (en) * | 2015-03-30 | 2015-07-08 | 广西宾阳县荣良新材料科技有限公司 | Production method of low-formaldehyde mildewproof urea-formaldehyde resin adhesive |
-
2019
- 2019-11-08 CN CN201911088173.2A patent/CN110734723A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1670104A (en) * | 2005-03-02 | 2005-09-21 | 上海市建筑科学研究院有限公司 | Low-release aldehyde adhesive and its preparation method and use |
| CN101200549A (en) * | 2007-12-04 | 2008-06-18 | 中国林业科学研究院木材工业研究所 | Method for preparing modified urea-formaldehyde resin powder material |
| CN103865018A (en) * | 2014-04-09 | 2014-06-18 | 中南林业科技大学 | Matrix resin and adhesive for structure laminated wood |
| CN104762043A (en) * | 2015-03-30 | 2015-07-08 | 广西宾阳县荣良新材料科技有限公司 | Production method of low-formaldehyde mildewproof urea-formaldehyde resin adhesive |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112662352A (en) * | 2020-12-07 | 2021-04-16 | 浙江农林大学 | Special phenolic resin adhesive for bamboo gluing and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102732186B (en) | Modified starch adhesive and method for preparing same | |
| CA2725896C (en) | Carboxylated lignin based binders | |
| FI124944B (en) | A method of making a binder composition, a binder composition, an adhesive composition, a layered composite structure, and uses of the binder composition and the adhesive composition | |
| CN103709971A (en) | Emulsion for bi-component wood bonding adhesive and synthesis method thereof | |
| CN104087219A (en) | Preparation method of lignin-modified phenolic resin wood adhesive | |
| CN103788905A (en) | Starch adhesive for environment-friendly timbers and preparation method thereof | |
| CN105922366A (en) | Zero-formaldehyde plywood and preparation method thereof | |
| CN110643312B (en) | Preparation method of environment-friendly phenolic adhesive | |
| CN110734723A (en) | wood craft strong adhesive and preparation method thereof | |
| CN105176458A (en) | Adhesive for starch modified vinyl acetate wooden veneer veneering and preparation method of adhesive | |
| EP3781642B1 (en) | Process for preparing a bonding resin | |
| EP3887474B1 (en) | Process for preparing a solution of lignin in an aqueous medium | |
| CN110982488A (en) | Bean pulp adhesive for solid wood composite floor and preparation method thereof | |
| CN103540274A (en) | Modified polyvinyl acetate emulsion and manufacturing process thereof | |
| CN110305591A (en) | A kind of moisture-proof impregnated paper of high adhesion and preparation method thereof | |
| CN114752348A (en) | ultralow-VOC (volatile organic compound) plant protein adhesive for I-type plywood and preparation method thereof | |
| CN104312502A (en) | Novel starch-based quebracho tannin extract aldehyde-free wood adhesive and preparation method thereof | |
| CN114686163A (en) | Formaldehyde-free soy protein adhesive as well as preparation method and application thereof | |
| CN109517577B (en) | Tough soybean meal protein adhesive and preparation method thereof | |
| JP2001335763A (en) | Two-part adhesive composition and adhesion method | |
| CN110845975A (en) | Double-component plate splicing adhesive and preparation method thereof | |
| US3284280A (en) | Rapid setting polyvinyl acetate adhesives | |
| CN113403026B (en) | Aldehyde-free adhesive synthesized from papermaking black liquor and preparation method and application thereof | |
| CN111944479B (en) | Soybean protein adhesive for wood bonding and preparation method thereof | |
| CN114479761B (en) | Cottonseed protein-based environment-friendly adhesive for plywood and preparation method and application thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200131 |