CN114736640A - Low-shrinkage two-component anchoring adhesive - Google Patents
Low-shrinkage two-component anchoring adhesive Download PDFInfo
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- CN114736640A CN114736640A CN202210170678.9A CN202210170678A CN114736640A CN 114736640 A CN114736640 A CN 114736640A CN 202210170678 A CN202210170678 A CN 202210170678A CN 114736640 A CN114736640 A CN 114736640A
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- anchoring adhesive
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Classifications
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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
- C09J163/10—Epoxy resins modified by unsaturated compounds
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- 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
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/40—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
- C08G59/50—Amines
- C08G59/5006—Amines aliphatic
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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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
Abstract
The invention belongs to the technical field of anchoring adhesives, and particularly relates to a low-shrinkage two-component anchoring adhesive. The adhesive comprises a component A and a component B; the component A comprises the following components in parts by weight: 100-120 parts of bisphenol A epoxy acrylic resin; 50-90 parts of novolac epoxy acrylic resin; 35-45 parts of polypropylene glycol diglycidyl ether; 3-6 parts of vinyl trimethylsilane; 30-40 parts of a first filler; the component B comprises the following components in parts by weight: 25-35 parts of a curing agent; 3-6 parts of a curing accelerator; 1-3 parts of gamma-aminopropyltriethoxysilane; 0.2-0.5 part of disodium cocomonoethanolamide sulfosuccinate; 20-30 parts of glass fiber powder; 10-20 parts of a second filler. The low-shrinkage two-component anchoring adhesive provided by the invention has a curing shrinkage rate lower than that of a conventional anchoring adhesive, has a strong bonding force after curing, can be widely applied to the building industry, and is particularly suitable for concrete bar planting operation.
Description
Technical Field
The invention belongs to the technical field of anchoring adhesives, and particularly relates to a low-shrinkage two-component anchoring adhesive.
Background
Anchoring adhesives, also known as bar-planting adhesives, have been widely used in recent years in the construction field. Currently, one of the most important applications of anchoring adhesives is for concrete reinforcing bars. The steel bar planting is that a hole is drilled in a concrete structure, then an anchoring adhesive is poured into the hole, and then the steel bar is planted into the hole of the structure to form anchoring. The steel bar planting technology has the advantages of easiness in operation, high speed, high efficiency, low damage and the like, can effectively avoid the defects of large damage, complex construction and the like of the traditional building structure connecting method to the original structure, and solves the connecting problem of the concrete post-connected steel bars.
However, it has been found in long-term practice that shrinkage problems are common to anchor adhesives. In the bar planting work progress, anchor adhesive solidifies gradually reinforcing bar and wall body anchor, but in anchor adhesive solidification process, the gluing agent molecule is linked gradually, and partial volatility component leaves the gluing agent body, and gluing agent inner structure changes gradually, causes gluing agent volume to reduce to form small crack between gluing agent and concrete and between gluing agent and reinforcing bar, finally lead to the adhesion to weaken. The volume shrinkage rate of the conventional anchoring adhesive in the curing process is generally over 5 percent.
In conclusion, the development of the anchoring adhesive with strong bonding force and low shrinkage rate has great significance for the development of the modern building industry.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a low-shrinkage two-component anchoring adhesive.
The low-shrinkage two-component anchoring adhesive provided by the invention comprises a component A and a component B;
the component A comprises the following components in parts by weight:
100 portions and 120 portions of bisphenol A epoxy acrylic resin;
50-90 parts of novolac epoxy acrylic resin;
35-45 parts of polypropylene glycol diglycidyl ether;
3-6 parts of vinyl trimethylsilane;
30-40 parts of a first filler;
the component B comprises the following components in parts by weight:
25-35 parts of a curing agent;
3-6 parts of a curing accelerator;
1-3 parts of gamma-aminopropyltriethoxysilane;
0.2-0.5 part of disodium cocomonoethanolamide sulfosuccinate;
20-30 parts of glass fiber powder;
10-20 parts of a second filler.
Further, in the component B of the low-shrinkage two-component anchoring adhesive, the curing agent is an amine curing agent, preferably diethylenetriamine.
Furthermore, in the component B of the low-shrinkage two-component anchoring adhesive, the curing accelerator is an imidazole curing accelerator, preferably 1- (2-cyanoethyl) -2-ethyl-4-methylimidazole.
Furthermore, in the component B of the low-shrinkage two-component anchoring adhesive, the fiber diameter of the glass fiber powder is within the range of 8-15 μm, and the length-diameter ratio of the glass fiber powder is within the range of 3-10: 1; the alkali content of the glass fiber powder is not more than 0.5 percent.
Further, in the component a of the low-shrinkage two-component anchoring adhesive, the first filler is fumed silica.
Further, in the low-shrinkage two-component anchoring adhesive, the primary particle size of the fumed silica is within the range of 5-80nm, the aggregate particle size of the fumed silica is within the range of 80-500nm, and the specific surface area of the fumed silica is 100-350m2In the range of/g.
Further, in the component B of the low-shrinkage two-component anchoring adhesive, the second filler is nano calcium oxide, nano calcium carbonate or a mixture of the nano calcium oxide and the nano calcium carbonate.
Furthermore, in the component B of the low-shrinkage two-component anchoring adhesive, the particle size of the second filler is in the range of 80-200 nm.
Furthermore, in the component B of the low-shrinkage two-component anchoring adhesive, by weight, the gamma-aminopropyltriethoxysilane, the glass fiber powder and the second filler are 8-10:100: 50-65.
Has the advantages that: according to the low-shrinkage two-component anchoring adhesive provided by the invention, the depth optimization of epoxy resin, a curing agent, a filler and an auxiliary agent in the anchoring adhesive is carried out, so that the anchoring adhesive which is lower in curing shrinkage rate than a conventional anchoring adhesive and extremely strong in bonding force after curing is obtained. The low-shrinkage two-component anchoring adhesive provided by the invention can be widely applied to the construction industry, and is particularly suitable for concrete bar planting operation.
Detailed Description
The invention is further illustrated by the following specific examples, which are illustrative and intended to illustrate the problem and explain the invention, but not limiting.
Example 1
A low-shrinkage two-component anchoring adhesive comprises a component A and a component B;
the component A comprises the following components in parts by weight:
110 parts of bisphenol A epoxy acrylic resin;
75 parts of novolac epoxy acrylic resin;
42 parts of polypropylene glycol diglycidyl ether;
4 parts of vinyl trimethylsilane;
33 parts of a first filler;
the component B comprises the following components in parts by weight:
32 parts of a curing agent;
5 parts of a curing accelerator;
2 parts of gamma-aminopropyl triethoxysilane;
0.3 part of disodium cocomonoethanolamide sulfosuccinate;
25 parts of glass fiber powder;
12.5 parts of a second filler.
In the component B of this example, the curing agent is diethylenetriamine.
In the component B of this example, the curing accelerator was 1- (2-cyanoethyl) -2-ethyl-4-methylimidazole.
In the component B of the embodiment, the fiber diameter of the glass fiber powder is in the range of 8-15 μm, and the length-diameter ratio of the glass fiber powder is in the range of 3-10: 1; the alkali content of the glass fiber powder is not more than 0.5 percent.
In the component A of the embodiment, the first filler is fumed silica, the primary particle size of the fumed silica is in the range of 5-80nm, the aggregate particle size of the fumed silica is in the range of 80-500nm, and the specific surface area of the fumed silica is 350 m-2In the range of/g.
In the component B of this example, the second filler is a mixture of nano calcium oxide and nano calcium carbonate in a mass ratio of 1: 1. The particle size of the second filler is in the range of 80-200 nm.
Example 2
A low-shrinkage two-component anchoring adhesive comprises a component A and a component B;
the component A comprises the following components in parts by weight:
105 parts of bisphenol A epoxy acrylic resin;
65 parts of novolac epoxy acrylic resin;
38 parts of polypropylene glycol diglycidyl ether;
4 parts of vinyl trimethylsilane;
35 parts of a first filler;
the component B comprises the following components in parts by weight:
28 parts of a curing agent;
5 parts of a curing accelerator;
2.5 parts of gamma-aminopropyl triethoxysilane;
0.3 part of disodium cocomonoethanolamide sulfosuccinate;
25 parts of glass fiber powder;
and 16 parts of a second filler.
In the component B of this example, the curing agent is diethylenetriamine.
In the component B of this example, the curing accelerator was 1- (2-cyanoethyl) -2-ethyl-4-methylimidazole.
In the component B of the embodiment, the fiber diameter of the glass fiber powder is in the range of 8-15 μm, and the length-diameter ratio of the glass fiber powder is in the range of 3-10: 1; the alkali content of the glass fiber powder is not more than 0.5 percent.
In the component A of this example, the first filler is fumed silica, the primary particle size of the fumed silica is in the range of 5-80nm, the aggregate particle size of the fumed silica is in the range of 80-500nm, and the specific surface area of the fumed silica is 100-350m2In the range of/g.
In the component B of this example, the second filler is a mixture of nano calcium oxide and nano calcium carbonate in a mass ratio of 2: 1. The particle size of the second filler is in the range of 80-200 nm.
Example 3
A low-shrinkage two-component anchoring adhesive comprises a component A and a component B;
the component A comprises the following components in parts by weight:
100 parts of bisphenol A epoxy acrylic resin;
50 parts of novolac epoxy acrylic resin;
35 parts of polypropylene glycol diglycidyl ether;
3 parts of vinyl trimethylsilane;
40 parts of a first filler;
the component B comprises the following components in parts by weight:
25 parts of a curing agent;
3 parts of a curing accelerator;
1 part of gamma-aminopropyltriethoxysilane;
0.2 part of disodium cocomonoethanolamide sulfosuccinate;
20 parts of glass fiber powder;
and 20 parts of a second filler.
In the component B of this example, the curing agent is diethylenetriamine.
In the component B of this example, the curing accelerator was 1- (2-cyanoethyl) -2-ethyl-4-methylimidazole.
In the component B of the embodiment, the fiber diameter of the glass fiber powder is in the range of 8-15 μm, and the length-diameter ratio of the glass fiber powder is in the range of 3-10: 1; the alkali content of the glass fiber powder is not more than 0.5 percent.
In the component A of the embodiment, the first filler is fumed silica, the primary particle size of the fumed silica is in the range of 5-80nm, the aggregate particle size of the fumed silica is in the range of 80-500nm, and the specific surface area of the fumed silica is 350 m-2In the range of/g.
In the component B of this example, the second filler is nano calcium oxide, and the particle size of the second filler is in the range of 80-200 nm.
Example 4
A low-shrinkage two-component anchoring adhesive comprises a component A and a component B;
the component A comprises the following components in parts by weight:
120 parts of bisphenol A epoxy acrylic resin;
90 parts of novolac epoxy acrylic resin;
45 parts of polypropylene glycol diglycidyl ether;
6 parts of vinyl trimethylsilane;
30 parts of a first filler;
the component B comprises the following components in parts by weight:
35 parts of a curing agent;
6 parts of a curing accelerator;
3 parts of gamma-aminopropyltriethoxysilane;
0.5 part of disodium cocomonoethanolamide sulfosuccinate;
30 parts of glass fiber powder;
10 parts of a second filler.
In the component B of this example, the curing agent is diethylenetriamine.
In the component B of this example, the curing accelerator was 1- (2-cyanoethyl) -2-ethyl-4-methylimidazole.
In the component B of the embodiment, the fiber diameter of the glass fiber powder is in the range of 8-15 μm, and the length-diameter ratio of the glass fiber powder is in the range of 3-10: 1; the alkali content of the glass fiber powder is not more than 0.5 percent.
In the component A of this example, the first filler is fumed silica, the primary particle size of the fumed silica is in the range of 5-80nm, the aggregate particle size of the fumed silica is in the range of 80-500nm, and the specific surface area of the fumed silica is 100-350m2In the range of/g.
In the component B of this example, the second filler is nano calcium carbonate, and the particle size of the second filler is in the range of 80-200 nm.
Performance testing
According to the component proportion of each embodiment, the component A and the component B are respectively and uniformly mixed and then are put into a glue gun, a static mixer is used for mixing, and glue injection and bar planting tests can be carried out by pressing the glue gun. The drawing force and the volume shrinkage of the examples 1 to 4 are shown in table 1, which shows that the adhesive provided by the invention has strong bonding force and is not easy to shrink, can be widely applied to the building industry, and is particularly suitable for concrete bar planting.
TABLE 1
The above embodiments are exemplary only, and are intended to illustrate the technical concept and features of the present invention so that those skilled in the art can understand the contents of the present invention and implement the present invention, and not to limit the scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (9)
1. The low-shrinkage two-component anchoring adhesive is characterized in that: comprises a component A and a component B;
the component A comprises the following components in parts by weight:
100 portions and 120 portions of bisphenol A epoxy acrylic resin;
50-90 parts of novolac epoxy acrylic resin;
35-45 parts of polypropylene glycol diglycidyl ether;
3-6 parts of vinyl trimethylsilane;
30-40 parts of a first filler;
the component B comprises the following components in parts by weight:
25-35 parts of a curing agent;
3-6 parts of a curing accelerator;
1-3 parts of gamma-aminopropyltriethoxysilane;
0.2-0.5 part of disodium cocomonoethanolamide sulfosuccinate;
20-30 parts of glass fiber powder;
10-20 parts of a second filler.
2. The low-shrinkage two-component anchoring adhesive according to claim 1, characterized in that: in the component B, the curing agent is an amine curing agent, preferably diethylenetriamine.
3. The low-shrinkage two-component anchoring adhesive according to claim 2, characterized in that: in the component B, the curing accelerator is imidazole curing accelerator, preferably 1- (2-cyanoethyl) -2-ethyl-4-methylimidazole.
4. The low-shrinkage two-component anchoring adhesive according to claim 1, characterized in that: in the component B, the fiber diameter of the glass fiber powder is in the range of 8-15 μm, and the length-diameter ratio of the glass fiber powder is in the range of 3-10: 1; the alkali content of the glass fiber powder is not more than 0.5%.
5. The low shrinkage two-component anchoring adhesive of claim 1, characterized in that: in the component A, the first filler is fumed silica.
6. The low-shrinkage two-component anchoring adhesive according to claim 5, characterized in that: the primary particle size of the fumed silica is within the range of 5-80nm, the aggregate particle size of the fumed silica is within the range of 80-500nm, and the specific surface area of the fumed silica is 100-350m2In the range of/g.
7. The low-shrinkage two-component anchoring adhesive according to claim 1, characterized in that: in the component B, the second filler is nano calcium oxide, nano calcium carbonate or a mixture of the nano calcium oxide and the nano calcium carbonate.
8. The low-shrinkage two-component anchoring adhesive according to claim 7, characterized in that: in the component B, the particle size of the second filler is in the range of 80-200 nm.
9. The low-shrinkage two-component anchoring adhesive of claim 8, characterized in that: in the component B, by weight, gamma-aminopropyltriethoxysilane, glass fiber powder and a second filler =8-10:100: 50-65.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210170678.9A CN114736640A (en) | 2022-02-24 | 2022-02-24 | Low-shrinkage two-component anchoring adhesive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210170678.9A CN114736640A (en) | 2022-02-24 | 2022-02-24 | Low-shrinkage two-component anchoring adhesive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114736640A true CN114736640A (en) | 2022-07-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210170678.9A Pending CN114736640A (en) | 2022-02-24 | 2022-02-24 | Low-shrinkage two-component anchoring adhesive |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1984000464A1 (en) * | 1982-07-13 | 1984-02-02 | Matsushita Electric Ind Co Ltd | Method of mounting electronic part |
| US5700417A (en) * | 1995-01-27 | 1997-12-23 | Kabushiki Kaisha Kobe Seiko Sho | Pultrusion process for preparing fiber-reinforced composite rod |
| CN105062396A (en) * | 2015-08-21 | 2015-11-18 | 卡本复合材料（天津）有限公司 | Double-component high-strength building epoxy structural adhesive and preparing method thereof |
| CN105542694A (en) * | 2016-01-18 | 2016-05-04 | 陈茂清 | Double-component resin type elastic joint mixture and preparation method thereof |
| CN110423437A (en) * | 2019-08-07 | 2019-11-08 | 武汉本邦复合材料科技有限公司 | A kind of glass fiber reinforcement light-cured epoxy acrylate compound material and preparation method thereof |
| CN110437390A (en) * | 2019-08-16 | 2019-11-12 | 武汉本邦复合材料科技有限公司 | A kind of pultrusion photo-thermal dual curable resin combination and its glass fiber compound material of preparation |
| CN112778953A (en) * | 2020-12-31 | 2021-05-11 | 道生天合材料科技(上海)股份有限公司 | High-peel-strength epoxy modified double-component methacrylate adhesive |
-
2022
- 2022-02-24 CN CN202210170678.9A patent/CN114736640A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1984000464A1 (en) * | 1982-07-13 | 1984-02-02 | Matsushita Electric Ind Co Ltd | Method of mounting electronic part |
| US5700417A (en) * | 1995-01-27 | 1997-12-23 | Kabushiki Kaisha Kobe Seiko Sho | Pultrusion process for preparing fiber-reinforced composite rod |
| CN105062396A (en) * | 2015-08-21 | 2015-11-18 | 卡本复合材料（天津）有限公司 | Double-component high-strength building epoxy structural adhesive and preparing method thereof |
| CN105542694A (en) * | 2016-01-18 | 2016-05-04 | 陈茂清 | Double-component resin type elastic joint mixture and preparation method thereof |
| CN110423437A (en) * | 2019-08-07 | 2019-11-08 | 武汉本邦复合材料科技有限公司 | A kind of glass fiber reinforcement light-cured epoxy acrylate compound material and preparation method thereof |
| CN110437390A (en) * | 2019-08-16 | 2019-11-12 | 武汉本邦复合材料科技有限公司 | A kind of pultrusion photo-thermal dual curable resin combination and its glass fiber compound material of preparation |
| CN112778953A (en) * | 2020-12-31 | 2021-05-11 | 道生天合材料科技(上海)股份有限公司 | High-peel-strength epoxy modified double-component methacrylate adhesive |
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