CN110903798A - Wood metal composite adhesive - Google Patents
Wood metal composite adhesive Download PDFInfo
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- CN110903798A CN110903798A CN201911338057.1A CN201911338057A CN110903798A CN 110903798 A CN110903798 A CN 110903798A CN 201911338057 A CN201911338057 A CN 201911338057A CN 110903798 A CN110903798 A CN 110903798A
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- 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
- C09J163/00—Adhesives based on epoxy resins; Adhesives based on derivatives of epoxy resins
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- 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
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- 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
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The wood metal composite adhesive is composed of the following raw materials in parts by weight: 75-100 parts of matrix resin, 5-10 parts of toughening agent, 10-20 parts of curing agent, 6-8 parts of accelerator, 6-8 parts of reactive diluent, 5-10 parts of plasticizer, 1-5 parts of coupling agent, 2-6 parts of filler and 10-20 parts of antioxidant. The invention has the beneficial effects that: the wood metal composite adhesive has the advantages of high bonding strength to heterogeneous materials such as wood metal and the like, short curing time, strong acid and alkali resistance, high mechanical strength, good ductility, good environmental stability, convenience in operation, low price, no toxicity, no harm and the like. The method is not critical to the operation and use environment, and has excellent composite effect on metal and wood.
Description
Technical Field
The invention belongs to the technical field of adhesives, and particularly relates to a wood metal composite adhesive.
Background
At present, along with the gradual improvement of living standard of people, the decoration effect of the heavy-duty decorative veneer is pursued more variously. The traditional product imitating the wood texture of precious tree species cannot meet the aesthetic requirements of decoration, various recombined decorative veneers with personalized design artistic patterns are increasingly favored by young consumers, the market demand for the recombined decorative veneers with the personalized artistic patterns is continuously increased at present, and recombined decorative veneer products compounded by metal and wood also appear. The adhesives used for bonding heterogeneous materials on the market mainly comprise polyurethane adhesives and epoxy resin adhesives, wherein the polyurethane adhesives are usually cured slowly at room temperature, and free isocyanate monomers have the defects of high toxicity and the like; when the epoxy resin adhesive is not toughened, a cured product is generally brittle, and has poor stripping resistance, cracking resistance and impact resistance, and some raw materials such as an active diluent, a curing agent and the like have the defects of toxicity, irritation and the like of different degrees.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide the wood metal composite adhesive which has the advantages of high bonding strength, quick curing time, strong acid and alkali resistance, high mechanical strength, good ductility, good environmental stability, convenient operation, low price, no toxicity and no harm to heterogeneous materials such as wood metal and the like.
The invention adopts the technical scheme for solving the technical problems that: the wood metal composite adhesive is composed of the following raw materials in parts by weight: 75-100 parts of matrix resin, 5-10 parts of toughening agent, 10-20 parts of curing agent, 6-8 parts of accelerator, 6-8 parts of reactive diluent, 5-10 parts of plasticizer, 1-5 parts of coupling agent, 2-6 parts of filler and 10-20 parts of antioxidant;
the adhesive for compounding the wood and the metal takes matrix resin as a raw material, the toughening agent increases the flexibility of an adhesive film layer, the curing agent and the accelerator have the functions of synergism and reaction rate improvement, so that the solidification speed of the adhesive for compounding the wood and the metal is accelerated, the diluent can enable particles to be generated inside the adhesive for compounding the wood and the metal, the basic performance of the adhesive for compounding the wood and the metal can be improved, the viscosity is improved, the plasticizer can be well compatible with basic resin, the permeability is small, the volatility is low, the plasticizing efficiency can be improved, the coupling agent can reduce the viscosity of a synthetic resin melt, the dispersity of a filler is improved so as to improve the processing performance, so that a product obtains good surface quality and mechanical, thermal and electrical properties, the filler is used for improving the performance of the adhesive for compounding the wood and the metal, the cost is reduced, and the antioxidant is used, the service life is prolonged.
The matrix resin is bisphenol A epoxy resin;
the base resin is used as the bisphenol A epoxy resin as the raw material, so that the raw material cost is reduced, and the curing agent, the catalyst and the additive are added to form a plurality of cured products with excellent performance, so that various use requirements can be met.
The toughening agent is any one or any combination of carboxyl-terminated liquid nitrile rubber, polysulfide rubber, polyether, polysulfone and polyimide;
the curing agent is any one or any combination of methyl tetrahydrophthalic anhydride, imidazole and dicyandiamide;
the accelerant is any one or any combination of 2, 4, 6-tris (dimethylaminomethyl) phenol, ethanedithiol and 2-ethyl-4-methylimidazole dicyandiamide;
the reactive diluent is any one or any combination of allyl glycidyl ether, propylene oxide propylene ether and butyl glycidyl ether;
the plasticizer is dibutyl phthalate;
the coupling agent is any one or any combination of polyisocyanate and organosilicon coupling agent;
the filler is any one of Portland cement and silicon dioxide;
the antioxidant is any one or any combination mixture of hindered phenol, phosphite ester and thioester.
Further perfected, the toughening agent is composed of carboxyl-terminated liquid nitrile rubber, polysulfide rubber and polyimide according to the mass ratio of 2:0.5-1: 1-2.
Further perfected, the curing agent consists of methyl tetrahydrophthalic anhydride and dicyandiamide according to the mass ratio of 1: 1-6.
Further perfected, and the accelerator consists of 2, 4, 6-tri (dimethylaminomethyl) phenol and ethanedithiol according to the mass ratio of 2: 0.5-1.
Further perfected, the reactive diluent is composed of allyl glycidyl ether and propylene oxide propylene ether according to the mass ratio of 3: 0.5-1.
Further perfected, the coupling agent is composed of polyisocyanate and organosilicon coupling agent according to the mass ratio of 2: 0.5-1.
Further perfected, the filler is an equal ratio mixture of Portland cement and silicon dioxide.
Further perfection, the antioxidant is hindered phenol, and the phosphite ester is composed according to the mass ratio of 3: 1-3.
The invention relates to a preparation method of a wood-metal composite adhesive, which comprises the following steps:
s1: adding matrix resin, active diluent and accelerant into a reaction kettle, stirring and mixing uniformly, gradually heating to 230-330 ℃, keeping the temperature for 0.5-1h, and stirring at the speed of 800-;
s2: adding a coupling agent into the mixed solution prepared in the step S1, stirring and mixing uniformly, keeping the temperature at 230-330 ℃, and stirring at the speed of 800-;
s3: and (4) adding the toughening agent, the plasticizer, the curing agent, the antioxidant and the filler into the mixed solution prepared in the step S2, stirring and mixing uniformly, and naturally cooling to room temperature.
The invention has the beneficial effects that: the wood metal composite adhesive has the advantages of high bonding strength to heterogeneous materials such as wood metal and the like, short curing time, strong acid and alkali resistance, high mechanical strength, good ductility, good environmental stability, convenience in operation, low price, no toxicity, no harm and the like. The method is not critical to the operation and use environment, and has excellent composite effect on metal and wood.
Detailed Description
The invention is further illustrated below:
example 1:
firstly, preparing a mixed solution: adding 75 parts of bisphenol A epoxy resin, 6 parts of reactive diluent and 6 parts of accelerant into a reaction kettle, stirring and mixing uniformly, gradually heating to 230 ℃, and stirring at the speed of 800r/min for 0.5 h; the active diluent consists of allyl glycidyl ether and propylene oxide propylene ether according to the mass ratio of 3: 0.4; the accelerant is composed of 2, 4, 6-tri (dimethylaminomethyl) phenol and ethanedithiol according to the mass ratio of 2: 0.6;
secondly, adding a mixing agent on the basis of the mixed solution of S1: adding 1 part of coupling agent, stirring and mixing uniformly, keeping the temperature at 230 ℃, and stirring at the speed of 800 r/min; the coupling agent is composed of polyisocyanate and organosilicon coupling agent according to the mass ratio of 2: 0.7;
thirdly, adding a mixing agent on the basis of the mixed solution of S2: adding 5 parts of toughening agent, 5 parts of plasticizer, 10 parts of curing agent, 10 parts of antioxidant and 2 parts of filler, stirring and mixing uniformly, and naturally cooling to room temperature to obtain a final adhesive, which is named as L1; the toughening agent is composed of carboxyl-terminated liquid nitrile rubber, polysulfide rubber and polyimide according to the mass ratio of 2:0.5: 1.2; the plasticizer is dibutyl phthalate; the curing agent is composed of methyl tetrahydrophthalic anhydride and dicyandiamide according to the mass ratio of 1: 7; the antioxidant is hindered phenol and phosphite ester according to the mass ratio of 3: 1.7; the filler is an equal ratio mixture of portland cement and silica.
Example 2:
firstly, preparing a mixed solution: adding 80 parts of bisphenol A epoxy resin, 7 parts of reactive diluent and 7 parts of accelerator into a reaction kettle, stirring and mixing uniformly, gradually heating to 250 ℃, and stirring at the speed of 880r/min for 0.52 h; the active diluent is composed of allyl glycidyl ether and propylene oxide propylene ether according to the mass ratio of 3: 0.6; the accelerant is composed of 2, 4, 6-tri (dimethylaminomethyl) phenol and ethanedithiol according to the mass ratio of 2: 0.5;
secondly, adding a mixing agent on the basis of the mixed solution of S1: adding 2 parts of coupling agent, stirring and mixing uniformly, keeping the temperature at 250 ℃, and stirring at the speed of 900 r/min; the coupling agent is composed of polyisocyanate and organosilicon coupling agent according to the mass ratio of 2: 0.6;
thirdly, adding a mixing agent on the basis of the mixed solution of S2: adding 6 parts of toughening agent, 6 parts of plasticizer, 12 parts of curing agent, 12 parts of antioxidant and 3 parts of filler, stirring and mixing uniformly, and naturally cooling to room temperature to obtain a final adhesive, which is named as L2; the toughening agent is composed of carboxyl-terminated liquid nitrile rubber, polysulfide rubber and polyimide according to the mass ratio of 2:0.7: 1.4; the plasticizer is dibutyl phthalate; the curing agent is composed of methyl tetrahydrophthalic anhydride and dicyandiamide according to the mass ratio of 1: 6; the antioxidant is hindered phenol and phosphite ester according to the mass ratio of 3: 2; the filler is an equal ratio mixture of portland cement and silica.
Example 3:
firstly, preparing a mixed solution: adding 85 parts of bisphenol A epoxy resin, 8 parts of reactive diluent and 8 parts of accelerant into a reaction kettle, stirring and mixing uniformly, gradually heating to 270 ℃, wherein the time is 0.54h, and the stirring speed is 960 r/min; the active diluent is composed of allyl glycidyl ether and propylene oxide propylene ether according to the mass ratio of 3: 1; the accelerant is composed of 2, 4, 6-tri (dimethylaminomethyl) phenol and ethanedithiol according to the mass ratio of 2: 1;
secondly, adding a mixing agent on the basis of the mixed solution of S1: adding 3 parts of coupling agent, stirring and mixing uniformly, keeping the temperature at 270 ℃, and stirring at the speed of 960 r/min; the coupling agent is composed of polyisocyanate and organosilicon coupling agent according to the mass ratio of 2: 1;
thirdly, adding a mixing agent on the basis of the mixed solution of S2: adding 7 parts of toughening agent, 7 parts of plasticizer, 13 parts of curing agent, 13 parts of antioxidant and 4 parts of filler, stirring and mixing uniformly, and naturally cooling to room temperature to obtain a final adhesive, which is named as L3; the toughening agent is composed of carboxyl-terminated liquid nitrile rubber, polysulfide rubber and polyimide according to the mass ratio of 2:1: 2; the plasticizer is dibutyl phthalate; the curing agent is composed of methyl tetrahydrophthalic anhydride and dicyandiamide according to the mass ratio of 1: 5; the antioxidant is hindered phenol and phosphite ester according to the mass ratio of 3: 2; the filler is an equal ratio mixture of portland cement and silica.
Example 4:
firstly, preparing a mixed solution: adding 85 parts of bisphenol A epoxy resin, 8 parts of reactive diluent and 8 parts of accelerant into a reaction kettle, stirring and mixing uniformly, gradually heating to 290 ℃, wherein the time is 0.56h, and the stirring speed is 1040 r/min; the active diluent is composed of allyl glycidyl ether and propylene oxide propylene ether according to the mass ratio of 3: 1; the accelerant is composed of 2, 4, 6-tri (dimethylaminomethyl) phenol and ethanedithiol according to the mass ratio of 2: 1;
secondly, adding a mixing agent on the basis of the mixed solution of S1: adding 3 parts of coupling agent, stirring and mixing uniformly, keeping the temperature at 290 ℃, and stirring at the speed of 1040 r/min; the coupling agent is composed of polyisocyanate and organosilicon coupling agent according to the mass ratio of 2: 1;
thirdly, adding a mixing agent on the basis of the mixed solution of S2: adding 7 parts of toughening agent, 7 parts of plasticizer, 13 parts of curing agent, 13 parts of antioxidant and 4 parts of filler, stirring and mixing uniformly, and naturally cooling to room temperature to obtain a final adhesive, which is named as L4; the toughening agent is composed of carboxyl-terminated liquid nitrile rubber, polysulfide rubber and polyimide according to the mass ratio of 2:1: 2; the plasticizer is dibutyl phthalate; the curing agent is composed of methyl tetrahydrophthalic anhydride and dicyandiamide according to the mass ratio of 1: 5; the antioxidant is hindered phenol and phosphite ester according to the mass ratio of 3: 2; the filler is an equal ratio mixture of portland cement and silica.
Example five:
firstly, preparing a mixed solution: adding 95 parts of bisphenol A epoxy resin, 10 parts of reactive diluent and 10 parts of accelerator into a reaction kettle, stirring and mixing uniformly, gradually heating to 310 ℃, and stirring at the speed of 1100r/min for 0.58 h; the active diluent consists of allyl glycidyl ether and propylene oxide propylene ether according to the mass ratio of 3: 0.9; the accelerant is composed of 2, 4, 6-tri (dimethylaminomethyl) phenol and ethanedithiol according to the mass ratio of 2: 0.8;
secondly, adding a mixing agent on the basis of the mixed solution of S1: adding 5 parts of coupling agent, stirring and mixing uniformly, keeping the temperature at 310 ℃, and stirring at the speed of 1100 r/min; the coupling agent is composed of polyisocyanate and organosilicon coupling agent according to the mass ratio of 2: 0.7;
thirdly, adding a mixing agent on the basis of the mixed solution of S2: adding 9 parts of toughening agent, 9 parts of plasticizer, 15 parts of curing agent, 15 parts of antioxidant and 6 parts of filler, stirring and mixing uniformly, and naturally cooling to room temperature to obtain a final adhesive, which is named as L5; the toughening agent is composed of carboxyl-terminated liquid nitrile rubber, polysulfide rubber and polyimide according to the mass ratio of 2:0.5: 1; the plasticizer is dibutyl phthalate; the curing agent is composed of methyl tetrahydrophthalic anhydride and dicyandiamide according to the mass ratio of 1: 8; the antioxidant is hindered phenol and phosphite ester according to the mass ratio of 3: 2; the filler is an equal ratio mixture of portland cement and silica.
As can be seen from the above table, in the experimental process, when the temperature is 270 ℃ and the stirring speed is 960r/min, the bonding strength of the wood-metal composite adhesive reaches 0.98MPa, the bonding strength is high, the curing time is fast, the acid and alkali resistance is strong, the mechanical strength is high, the ductility is good, the environmental stability is good, the operation is convenient, and the adhesive is nontoxic and harmless, the bonding strength is not selected for the operation and use environment, the composite effect of metal and wood is excellent, when the mass ratio of allyl glycidyl ether to propylene oxide ether is increased or decreased, the bonding strength can be affected, the temperature and the stirring speed are required, the bonding strength is optimal when the stirring speed is 960r/min at 270 ℃, and the bonding strength is reduced when the temperature is too high and the rotating speed is too high under the same ratio.
Although the present invention has been described with reference to preferred embodiments, workers skilled in the art will recognize that changes may be made in form and detail without departing from the scope of the claims.
Claims (8)
1. A wood metal composite adhesive is characterized in that: the wood metal composite adhesive is prepared from the following raw materials in parts by weight: 75-100 parts of matrix resin, 5-10 parts of toughening agent, 10-20 parts of curing agent, 6-8 parts of accelerator, 6-8 parts of reactive diluent, 5-10 parts of plasticizer, 1-5 parts of coupling agent, 2-6 parts of filler and 10-20 parts of antioxidant;
the matrix resin is bisphenol A epoxy resin;
the toughening agent is any one or any combination of carboxyl-terminated liquid nitrile rubber, polysulfide rubber, polyether, polysulfone and polyimide;
the curing agent is any one or any combination of methyl tetrahydrophthalic anhydride, imidazole and dicyandiamide;
the accelerant is any one or any combination of 2, 4, 6-tris (dimethylaminomethyl) phenol, ethanedithiol and 2-ethyl-4-methylimidazole dicyandiamide;
the reactive diluent is any one or any combination of allyl glycidyl ether, propylene oxide propylene ether and butyl glycidyl ether;
the plasticizer is dibutyl phthalate;
the coupling agent is any one or any combination of polyisocyanate and organosilicon coupling agent;
the filler is any one of Portland cement and silicon dioxide;
the antioxidant is any one or any combination mixture of hindered phenol, phosphite ester and thioester.
2. The wood metal composite adhesive of claim 1, wherein: the toughening agent is composed of carboxyl-terminated liquid nitrile rubber, polysulfide rubber and polyimide according to the mass ratio of 2:0.5-1: 1-2.
3. The wood metal composite adhesive of claim 1, wherein: the curing agent is composed of methyl tetrahydrophthalic anhydride and dicyandiamide according to the mass ratio of 1: 1-6.
4. The wood metal composite adhesive of claim 1, wherein: the promoter consists of 2, 4, 6-tri (dimethylaminomethyl) phenol and ethanedithiol according to the mass ratio of 2: 0.5-1.
5. The wood metal composite adhesive of claim 1, wherein: the active diluent is composed of allyl glycidyl ether and propylene oxide propylene ether according to the mass ratio of 3: 0.5-1.
6. The wood metal composite adhesive of claim 1, wherein: the coupling agent is composed of polyisocyanate and an organic silicon coupling agent according to the mass ratio of 2: 0.5-1.
7. The wood metal composite adhesive of claim 1, wherein: the filler is an equal ratio mixture of portland cement and silicon dioxide.
8. The wood metal composite adhesive of claim 1, wherein: the antioxidant is composed of hindered phenol and phosphite ester according to a mass ratio of 3: 1-3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911338057.1A CN110903798A (en) | 2019-12-23 | 2019-12-23 | Wood metal composite adhesive |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911338057.1A CN110903798A (en) | 2019-12-23 | 2019-12-23 | Wood metal composite adhesive |
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| CN110903798A true CN110903798A (en) | 2020-03-24 |
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| CN201911338057.1A Pending CN110903798A (en) | 2019-12-23 | 2019-12-23 | Wood metal composite adhesive |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111909647A (en) * | 2020-08-17 | 2020-11-10 | 浙江云强新材料科技有限公司 | Preparation method of resin adhesive |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103937432A (en) * | 2014-02-14 | 2014-07-23 | 上海禧合应用材料有限公司 | Sealant |
| CN108350335A (en) * | 2015-11-19 | 2018-07-31 | 3M创新有限公司 | Construction adhesive with improved corrosion resistance |
-
2019
- 2019-12-23 CN CN201911338057.1A patent/CN110903798A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103937432A (en) * | 2014-02-14 | 2014-07-23 | 上海禧合应用材料有限公司 | Sealant |
| CN108350335A (en) * | 2015-11-19 | 2018-07-31 | 3M创新有限公司 | Construction adhesive with improved corrosion resistance |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111909647A (en) * | 2020-08-17 | 2020-11-10 | 浙江云强新材料科技有限公司 | Preparation method of resin adhesive |
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Application publication date: 20200324 |