CN115322717A - Fiber-reinforced resin-based adhesive capable of being used for underwater construction and repairing underwater vehicle shell, and preparation method and construction method thereof - Google Patents
Fiber-reinforced resin-based adhesive capable of being used for underwater construction and repairing underwater vehicle shell, and preparation method and construction method thereof Download PDFInfo
- Publication number
- CN115322717A CN115322717A CN202211001251.2A CN202211001251A CN115322717A CN 115322717 A CN115322717 A CN 115322717A CN 202211001251 A CN202211001251 A CN 202211001251A CN 115322717 A CN115322717 A CN 115322717A
- Authority
- CN
- China
- Prior art keywords
- based adhesive
- reinforced resin
- fiber reinforced
- underwater
- highest
- 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.)
- Pending
Links
- 239000000853 adhesive Substances 0.000 title claims abstract description 47
- 230000001070 adhesive effect Effects 0.000 title claims abstract description 47
- 229920005989 resin Polymers 0.000 title claims abstract description 42
- 239000011347 resin Substances 0.000 title claims abstract description 42
- 238000010276 construction Methods 0.000 title claims abstract description 20
- 238000002360 preparation method Methods 0.000 title abstract description 7
- 239000000835 fiber Substances 0.000 claims abstract description 41
- 238000000034 method Methods 0.000 claims abstract description 24
- 230000008439 repair process Effects 0.000 claims abstract description 18
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 34
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 24
- 239000004917 carbon fiber Substances 0.000 claims description 24
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 20
- 239000003795 chemical substances by application Substances 0.000 claims description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 15
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 14
- 239000000292 calcium oxide Substances 0.000 claims description 14
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 14
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 12
- 239000003822 epoxy resin Substances 0.000 claims description 11
- 229920000647 polyepoxide Polymers 0.000 claims description 11
- 238000003756 stirring Methods 0.000 claims description 11
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 10
- 239000004593 Epoxy Substances 0.000 claims description 9
- 235000019441 ethanol Nutrition 0.000 claims description 9
- 239000011159 matrix material Substances 0.000 claims description 9
- -1 modified phenol amine Chemical class 0.000 claims description 9
- GPRLSGONYQIRFK-MNYXATJNSA-N triton Chemical group [3H+] GPRLSGONYQIRFK-MNYXATJNSA-N 0.000 claims description 9
- 239000002994 raw material Substances 0.000 claims description 8
- 239000004094 surface-active agent Substances 0.000 claims description 7
- 239000008367 deionised water Substances 0.000 claims description 6
- 229910021641 deionized water Inorganic materials 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 5
- 238000002791 soaking Methods 0.000 claims description 5
- 238000009990 desizing Methods 0.000 claims description 3
- 239000012535 impurity Substances 0.000 claims description 3
- 238000004513 sizing Methods 0.000 claims description 3
- 238000001291 vacuum drying Methods 0.000 claims description 3
- 238000003828 vacuum filtration Methods 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims description 2
- 238000005452 bending Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 3
- 239000002861 polymer material Substances 0.000 abstract description 2
- 229920005749 polyurethane resin Polymers 0.000 abstract description 2
- 238000003860 storage Methods 0.000 abstract description 2
- 238000012360 testing method Methods 0.000 description 29
- 238000010125 resin casting Methods 0.000 description 15
- 239000000243 solution Substances 0.000 description 13
- 238000002474 experimental method Methods 0.000 description 7
- 239000004841 bisphenol A epoxy resin Substances 0.000 description 6
- 238000007676 flexural strength test Methods 0.000 description 5
- 239000007789 gas Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 229910021485 fumed silica Inorganic materials 0.000 description 2
- 238000005470 impregnation Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000009210 therapy by ultrasound Methods 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000006482 condensation reaction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 125000003700 epoxy group Chemical group 0.000 description 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 1
- 239000012767 functional filler Substances 0.000 description 1
- 125000000623 heterocyclic group Chemical group 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 239000004848 polyfunctional curative Substances 0.000 description 1
- 150000003141 primary amines Chemical class 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J163/00—Adhesives based on epoxy resins; Adhesives based on derivatives of epoxy resins
-
- 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
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2206—Oxides; Hydroxides of metals of calcium, strontium or barium
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Sealing Material Composition (AREA)
Abstract
The invention discloses a fiber reinforced resin-based adhesive capable of repairing a submersible vehicle shell through underwater construction, and a preparation method and a construction method thereof, and belongs to the technical field of underwater repairing high polymer materials. The invention solves the problems of long construction period, low repair quality, complex working procedures and difficult realization of quick and reliable repair of leakage equipment in the existing underwater repair technology. The adhesive is cured under the underwater wet bonding condition, has excellent mechanical properties after curing, has the highest tensile strength of 60.81MPa, the highest compressive strength of 110.53MPa, the highest bending strength of 145.35MPa and the highest tensile shear strength of 10.91MPa, and is suitable for repairing and plugging marine oil storage tanks. And the high-strength polyurethane resin has higher mechanical property in air curing, and has the highest tensile strength of 65.51MPa, the highest compressive strength of 112.32MPa, the highest bending strength of 150.65MPa and the highest bonding strength of 11.96MPa.
Description
Technical Field
The invention relates to a fiber reinforced resin-based adhesive capable of repairing a submersible vehicle shell through underwater construction, a preparation method and a construction method thereof, and belongs to the technical field of underwater repairing high polymer materials.
Background
Along with the increasing of ocean engineering, the requirements on underwater repair means are higher and higher, and the traditional repair method cannot meet the requirements of quick repair and safety and stability of the existing damaged submarine shell. Therefore, underwater repair means become more and more important, during underwater construction, the underwater repair means are interfered by working condition environments, construction conditions are difficult, many repair means cannot be used underwater, and the underwater repair means applied to the underwater repair means are still in a starting stage. The fiber reinforced resin matrix composite material has the advantages that the fiber reinforced resin matrix composite material is more and more required in the special use environment, the resin matrix composite material used for underwater repair at present has high brittleness and low bonding strength, and the quality requirement of construction cannot be met in actual engineering. Therefore, the resin-based adhesive for rapidly plugging and repairing the damaged structure of the underwater vehicle shell is provided, and the problems that the existing underwater repairing technology is long in construction period, low in repairing quality, complex in process and difficult to achieve rapid and reliable repairing of leakage equipment are very necessary.
Disclosure of Invention
The invention provides a fiber reinforced resin-based adhesive capable of repairing a damaged submersible shell in water by underwater construction, and a preparation method and a construction method thereof, aiming at solving the problems that the existing underwater repair technology has long construction period, low repair quality and complex working procedures and is difficult to realize quick and reliable repair of leakage equipment.
The technical scheme of the invention is as follows:
one of the purposes of the invention is to provide a fiber reinforced resin-based adhesive, which comprises the following raw materials in parts by weight: 80 to 100 portions of resin matrix, 40 to 50 portions of curing agent, 1 to 5 portions of calcium oxide, 0.1 to 1 portion of chopped carbon fiber, 0.5 to 2 portions of surfactant and 0.5 to 3 portions of gas-phase SiO 2 0.5-3 parts of silane coupling agent, 100-250 parts of absolute ethyl alcohol and 40-60 parts of acetone.
Further defined, the resin matrix is a bisphenol a type epoxy resin.
The curing agent is further limited to be a modified phenol amine type epoxy curing agent.
More particularly, the curative is JH5553.
Further defined, the silane coupling agent is KH-550.
Further defined, the surfactant is triton.
The invention also provides a preparation method of the fiber reinforced resin-based adhesive, which comprises the following steps:
s1, desizing the chopped carbon fibers;
s2, adding the chopped carbon fibers subjected to the desizing treatment into a surfactant/ethanol solution, stirring, standing, washing with deionized water, and drying for later use;
s3, mixing gas phase SiO 2 Adding into the uniformly mixed silane coupling agent/ethanol solution, and performing ultrasonic treatment for 30min;
s4, placing the resin matrix in a water bath kettle for heating, and adding the gas phase SiO treated in the step 3 2 And calcium oxide, stirring to be uniform to obtain gas-phase SiO 2 A modified epoxy resin;
s5, mixing the chopped carbon fiber treated by the S2 with gas-phase SiO 2 And mixing the modified epoxy resin, uniformly stirring, and putting into a vacuum drying oven for vacuum filtration to obtain the bubble-free fiber reinforced resin-based adhesive.
And further limiting S1, soaking the chopped fibers in an acetone solution, removing impurities and sizing agents on the surfaces of the chopped fibers, washing with deionized water, and drying for later use.
Further defined, the chopped fibers in S1 have a size of 3mm and a diameter of 7 μm.
More specifically, the soaking time in S1 is 72h.
More specifically, the drying temperature in S1 is 120 ℃.
Further limiting, the concentration of the surfactant/ethanol solution in S2 is 0.5%.
Further limiting, the mixture is stirred for 30min in S2 and then is kept stand for 12h to disperse the chopped carbon fibers.
Further defined, the concentration of the silane coupling agent/ethanol solution in S3 is 2%.
Further, the temperature of the water bath in S4 is 80 ℃.
Further limiting, the stirring time in S4 is 90-100 min.
The invention also aims to provide a method for repairing the shell of the submersible vehicle in underwater construction by using the fiber reinforced resin-based adhesive, which comprises the steps of soaking a fiber bundle or fabric by using the fiber reinforced resin-based adhesive to obtain a prepreg, storing the prepreg at a low temperature, positioning the damaged structural part of the shell of the submersible vehicle, cutting the prepreg into a proper size, adhering the prepreg, and fixing the prepreg by using a wire grip after adhering.
Further defined, the impregnation speed is 4m/min.
Further defined, the storage dimension is 10 ℃.
The fiber reinforced resin-based adhesive provided by the invention can be cured under an underwater wet bonding condition, has excellent mechanical properties after curing, has the highest tensile strength of 60.81MPa, the highest compressive strength of 110.53MPa, the highest bending strength of 145.35MPa and the highest tensile shear strength of 10.91MPa, and is suitable for repairing and plugging an underwater vehicle shell. And the high-strength polyurethane resin has higher mechanical property in air curing, and has the highest tensile strength of 65.51MPa, the highest compressive strength of 112.32MPa, the highest bending strength of 150.65MPa and the highest bonding strength of 11.96MPa. Compared with the prior art, the method also has the following beneficial effects:
(1) The adhesive provided by the invention utilizes active groups such as an epoxy group at the tail end of a molecular chain of bisphenol A epoxy resin, an ether bond in the middle of the chain, a hydroxyl group and the like, so that the adhesive is endowed with a higher curing reaction rate, and excellent underwater environment application performance is realized. And the molecular chain of the material also contains structures such as benzene rings or heterocycles, and the like, so that the three-dimensional network structure generated by the curing reaction shows the caking property, and simultaneously, the material is beneficial to improving the heat resistance and the toughness.
(2) The modified phenol amine type epoxy curing agent is adopted, the curing agent is a mannich condensation reaction of poly-primary amine serving as a main raw material with phenol, formaldehyde and the like, and the modified epoxy resin curing agent has the characteristics of low viscosity, long service life, excellent curing performance and bonding performance under low-temperature and high-humidity conditions and the like, so that the adhesive disclosed by the invention is endowed with excellent underwater curing and underwater bonding performances.
(3) The adhesive system provided by the invention also contains a water-absorbing component calcium oxide, which is beneficial to eliminating an interface water film and improving the interface bonding performance, and the calcium oxide also reacts with water to release heat while absorbing water, so that the curing reaction speed is further accelerated.
(4) The adhesive system provided by the invention takes the chopped carbon fibers as the functional filler, so that the adhesive can have excellent mechanical property and toughness, and the cracking and or degumming phenomena are avoided.
(5) The adhesive system provided by the invention has the advantages of good construction performance under underwater working conditions, simple underwater repair process, high repair quality and the like, is simple in preparation process, can be carried out under normal temperature and normal pressure, has low cost and good applicability, and can be widely applied to different working conditions such as air and underwater without waste gas emission.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The experimental procedures used in the following examples are conventional unless otherwise specified. The materials, reagents, methods and apparatus used, unless otherwise specified, are conventional and commercially available to those skilled in the art.
The technical solutions of the present invention will be described clearly and completely below, and it should be apparent that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
the fiber reinforced resin-based adhesive prepared by the embodiment comprises the following raw materials in parts by weight:100 parts of bisphenol A epoxy resin, 50 parts of modified phenol-formaldehyde amine epoxy curing agent JH5553,2 parts of calcium oxide, 0.15 part of chopped carbon fiber, 0.5 part of triton and 1 part of gas-phase SiO 2 1 part of silane coupling agent KH-550, 150 parts of absolute ethyl alcohol and 40 parts of acetone.
The method for preparing the fiber reinforced resin-based adhesive comprises the following steps:
(1) Accurately weighing the components;
(2) And (2) placing 0.15 part of weighed chopped carbon fibers in an acetone solution for soaking for 72 hours at room temperature, removing impurities and sizing agents on the surfaces of the chopped carbon fibers, repeatedly cleaning the chopped carbon fibers with deionized water, and placing the chopped carbon fibers in an oven for drying at 120 ℃ for later use after cleaning.
(3) And (3) putting the dried chopped carbon fibers into the prepared triton solution, stirring for 30min, and standing for 12h to disperse the chopped carbon fibers. Wherein, the concentration of the triton solution is 0.5 percent.
(4) And cleaning the dispersed chopped carbon fibers by using deionized water, and drying in an oven at 120 ℃ for later use.
(5) SiO in gas phase 2 Adding into the uniformly mixed silane coupling agent/ethanol solution, and performing ultrasonic treatment for 30min. Wherein, the concentration of the silane coupling agent/ethanol solution is 2 percent.
(6) 100 parts of epoxy resin is put in a water bath and heated to 80 ℃, and gas phase SiO treated in silane coupling agent KH-550/ethanol solution is added into the epoxy resin 2 And calcium oxide powder, and stirring for 45-60 min by using an electric stirrer to uniformly mix the calcium oxide powder and the calcium oxide powder to obtain the fumed silica modified epoxy resin.
(7) And adding the dispersed chopped carbon fibers into the uniformly mixed fumed silica modified epoxy resin, and stirring by an electric stirrer for 90-100 min to uniformly mix.
(8) Adding 50 parts of modified phenolic amine type epoxy hardener JH5553 into the uniformly stirred mixed solution, and uniformly stirring by using an electric stirrer;
(9) And putting the mixture into a vacuum drying oven for vacuum filtration to obtain the bubble-free chopped carbon fiber reinforced underwater wet bonding adhesive.
(10) Preparing casting bodies and tensile shear samples solidified under two working conditions of water and water.
(11) The mechanical properties of the two cured samples under different working conditions prepared in the embodiment were tested according to the relevant national standards. Wherein the flexural strength test is carried out according to the requirements of GB/T2570-1995 & method for testing flexural properties of resin casting, the tensile shear strength test is carried out according to the requirements of GB/T7124-2008 & method for measuring tensile shear strength of adhesive, the tensile strength test is carried out according to the requirements of GB/T2568-1995 & method for testing tensile properties of resin casting, and the compressive strength test is carried out according to the requirements of GB/T2569-1995 & method for testing compressive properties of resin casting. The test results are shown in table 1.
The method for repairing the underwater damaged submersible vehicle shell through underwater construction by using the fiber reinforced resin-based adhesive prepared in the embodiment comprises the steps of impregnating a fiber bundle by using the fiber reinforced resin-based adhesive at an impregnation speed of 4m/min to obtain a prepreg, storing the prepreg at 10 ℃, positioning the damaged structural part of the submersible vehicle shell, cutting the prepreg into a proper size, adhering the prepreg, and fixing the prepreg by using a wire grip after adhering.
Example 2:
the difference between the present embodiment and embodiment 1 is: the fiber reinforced resin-based adhesive prepared by the embodiment comprises the following raw materials in parts by weight: 100 parts of bisphenol A epoxy resin, 50 parts of modified phenol-formaldehyde amine epoxy curing agent JH5553,2 parts of calcium oxide, 0.25 part of chopped carbon fiber, 0.75 part of triton and 1 part of gas-phase SiO 2 1 part of silane coupling agent KH-550, 200 parts of absolute ethyl alcohol and 50 parts of acetone. The rest of the operation and the parameter setting were the same as in example 1.
The mechanical properties of the samples cured under two different working conditions prepared in the example were tested according to the relevant national standards. Wherein the flexural strength test is carried out according to the requirements of GB/T2570-1995, experimental method for flexural Property of resin casting, the tensile shear strength test is carried out according to the requirements of GB/T7124-2008, measurement of tensile shear strength of adhesive, the tensile strength test is carried out according to the requirements of GB/T2568-1995, experimental method for tensile Property of resin casting, and the compressive strength test is carried out according to the requirements of GB/T2569-1995, experimental method for compressive Property of resin casting. The test results are shown in table 1.
Example 3:
the difference between the present embodiment and embodiment 1 is: the fiber reinforced resin-based adhesive prepared by the embodiment comprises the following raw materials in parts by weight: 100 parts of bisphenol A epoxy resin, 50 parts of modified phenol amine epoxy curing agent JH5553,2 parts of calcium oxide, 0.35 part of chopped carbon fiber, 1 part of triton and 1 part of gas-phase SiO 2 1 part of silane coupling agent KH-550, 250 parts of absolute ethyl alcohol and 60 parts of acetone. The rest of the operation and the parameter setting were the same as in example 1.
The mechanical properties of the samples cured under two different working conditions prepared in the example were tested according to the relevant national standards. Wherein the flexural strength test is carried out according to the requirements of GB/T2570-1995 & method for testing flexural properties of resin casting, the tensile shear strength test is carried out according to the requirements of GB/T7124-2008 & method for measuring tensile shear strength of adhesive, the tensile strength test is carried out according to the requirements of GB/T2568-1995 & method for testing tensile properties of resin casting, and the compressive strength test is carried out according to the requirements of GB/T2569-1995 & method for testing compressive properties of resin casting. The test results are shown in table 1.
Example 4:
the difference between the present embodiment and embodiment 1 is: the fiber reinforced resin-based adhesive prepared by the embodiment comprises the following raw materials in parts by weight: 100 parts of bisphenol A epoxy resin, 50 parts of modified phenol-formaldehyde amine epoxy curing agent JH5553,2 parts of calcium oxide, 0.25 part of chopped carbon fiber, 0.75 part of triton and 2 parts of gas-phase SiO 2 1.5 parts of silane coupling agent KH-550, 225 parts of absolute ethyl alcohol and 50 parts of acetone. The rest of the operation and the parameter setting were the same as in example 1.
The mechanical properties of the samples cured under two different working conditions prepared in the example were tested according to the relevant national standards. Wherein the flexural strength test is carried out according to the requirements of GB/T2570-1995, experimental method for flexural Property of resin casting, the tensile shear strength test is carried out according to the requirements of GB/T7124-2008, measurement of tensile shear strength of adhesive, the tensile strength test is carried out according to the requirements of GB/T2568-1995, experimental method for tensile Property of resin casting, and the compressive strength test is carried out according to the requirements of GB/T2569-1995, experimental method for compressive Property of resin casting. The test results are shown in table 1.
Example 5:
the difference between this example and example 1 is: the fiber reinforced resin-based adhesive prepared by the embodiment comprises the following raw materials in parts by weight: 100 parts of bisphenol A epoxy resin, 50 parts of modified phenol amine epoxy curing agent JH5553,2 parts of calcium oxide, 0.25 part of chopped carbon fiber, 0.75 part of triton and 3 parts of gas-phase SiO 2 2 parts of silane coupling agent KH-550, 250 parts of absolute ethyl alcohol and 50 parts of acetone. The rest of the operation and the parameter setting were the same as in example 1.
The mechanical properties of the samples cured under two different working conditions prepared in the example were tested according to the relevant national standards. Wherein the flexural strength test is carried out according to the requirements of GB/T2570-1995 & method for testing flexural properties of resin casting, the tensile shear strength test is carried out according to the requirements of GB/T7124-2008 & method for measuring tensile shear strength of adhesive, the tensile strength test is carried out according to the requirements of GB/T2568-1995 & method for testing tensile properties of resin casting, and the compressive strength test is carried out according to the requirements of GB/T2569-1995 & method for testing compressive properties of resin casting. The test results are shown in table 1.
TABLE 1
As shown in the table 1, the fiber reinforced resin-based adhesive provided by the invention has good toughness and bonding performance in the water working condition and the underwater working condition,
the above description is only a preferred embodiment of the present invention, and since suitable changes and modifications can be made by those skilled in the art, the present invention is not limited to the above-described specific embodiments, and some modifications and changes should be made to the present invention within the protection scope of the claims of the present invention.
Claims (10)
1. The fiber reinforced resin-based adhesive is characterized by comprising the following raw materials in parts by weight: 80 to 100 portions of resin matrix, 40 to 50 portions of curing agent, 1 to 5 portions of calcium oxide, 0.1 to 1 portion of chopped carbon fiber, 0.5 to 2 portions of surfactant and 0.5 to 3 portions of gas-phase SiO 2 0.5-3 parts of silane coupling agent, 100-250 parts of absolute ethyl alcohol and 40-60 parts of acetone.
2. The fiber reinforced resin based adhesive according to claim 1, wherein the resin matrix is bisphenol a type epoxy resin.
3. The fiber reinforced resin based adhesive according to claim 1, wherein the curing agent is a modified phenol amine type epoxy curing agent.
4. The fiber reinforced resin based adhesive according to claim 1, wherein the curing agent is JH5553.
5. The fiber reinforced resin based adhesive according to claim 1, wherein the silane coupling agent is KH-550.
6. The fiber reinforced resin based adhesive according to claim 1, wherein the surfactant is triton.
7. A method of preparing a fiber reinforced resin based adhesive according to claim 1, comprising:
s1, desizing the chopped carbon fibers;
s2, adding the chopped carbon fibers subjected to the pulp removal treatment into a surfactant/ethanol solution, stirring, standing, washing with deionized water, and drying for later use;
s3, treating gas-phase SiO by using a silane coupling agent/ethanol solution 2 ；
S4, placing the resin matrix in a water bath kettle for heating, and adding the gas-phase SiO treated in the step 3 2 And a calcium oxide,stirring to be uniform to obtain gas-phase SiO 2 A modified epoxy resin;
s5, mixing the chopped carbon fiber treated by the S2 with gas-phase SiO 2 And mixing the modified epoxy resin, uniformly stirring, and putting into a vacuum drying oven for vacuum filtration to obtain the bubble-free fiber reinforced resin-based adhesive.
8. The method for preparing the fiber reinforced resin based adhesive according to claim 7, wherein S1 is that the chopped fibers are placed in an acetone solution for soaking, impurities and sizing agents on the surfaces of the chopped fibers are removed, and the chopped fibers are washed by deionized water and dried for later use.
9. The fiber reinforced resin based adhesive according to claim 1, for use in underwater construction repair of damaged submersible vehicle hulls.
10. The method for repairing the underwater damaged submersible vehicle shell by using the fiber reinforced resin based adhesive according to claim 9, wherein the fiber reinforced resin based adhesive is used for impregnating a fiber bundle or a fabric to obtain a prepreg, the prepreg is reserved at a low temperature, the damaged structure part is positioned, the prepreg is cut into a proper size and is adhered, and the prepreg is fixed by using a wire grip after being adhered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211001251.2A CN115322717A (en) | 2022-08-19 | 2022-08-19 | Fiber-reinforced resin-based adhesive capable of being used for underwater construction and repairing underwater vehicle shell, and preparation method and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211001251.2A CN115322717A (en) | 2022-08-19 | 2022-08-19 | Fiber-reinforced resin-based adhesive capable of being used for underwater construction and repairing underwater vehicle shell, and preparation method and construction method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115322717A true CN115322717A (en) | 2022-11-11 |
Family
ID=83926550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211001251.2A Pending CN115322717A (en) | 2022-08-19 | 2022-08-19 | Fiber-reinforced resin-based adhesive capable of being used for underwater construction and repairing underwater vehicle shell, and preparation method and construction method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115322717A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116178901A (en) * | 2023-03-17 | 2023-05-30 | 大连理工大学 | Preparation method of novel high-strength and high-brittleness 3D printing material for rock reconstruction |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101851481A (en) * | 2010-05-22 | 2010-10-06 | 东方电气集团东方汽轮机有限公司 | Epoxy resin adhesive for manufacturing blades of wind driven generator and preparation method thereof |
| CN102925091A (en) * | 2012-10-10 | 2013-02-13 | 江苏新誉重工科技有限公司 | High-strength high-toughness epoxy resin adhesive and preparation method thereof |
| CN106497474A (en) * | 2016-10-29 | 2017-03-15 | 张静 | A kind of preparation method of epoxy resin adhesive |
| CN107815070A (en) * | 2017-11-09 | 2018-03-20 | 湖北航天化学技术研究所 | A kind of room temperature-curing low-viscosity high strength epoxy resin castable and preparation method |
| CN108794979A (en) * | 2018-03-29 | 2018-11-13 | 航天材料及工艺研究所 | A kind of high compression-strength and high pressure Lapie's carbon fibre composite and preparation method thereof |
| CN108865034A (en) * | 2018-05-24 | 2018-11-23 | 大连理工大学 | A kind of adhesive and preparation method thereof for being repaired under steel structure water |
| CN108913075A (en) * | 2018-06-27 | 2018-11-30 | 朱宇浩 | A kind of formula of epoxy resin adhesive |
| EP3753964A1 (en) * | 2019-06-19 | 2020-12-23 | Covestro Intellectual Property GmbH & Co. KG | An adhesive and its preparation and application |
-
2022
- 2022-08-19 CN CN202211001251.2A patent/CN115322717A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101851481A (en) * | 2010-05-22 | 2010-10-06 | 东方电气集团东方汽轮机有限公司 | Epoxy resin adhesive for manufacturing blades of wind driven generator and preparation method thereof |
| CN102925091A (en) * | 2012-10-10 | 2013-02-13 | 江苏新誉重工科技有限公司 | High-strength high-toughness epoxy resin adhesive and preparation method thereof |
| CN106497474A (en) * | 2016-10-29 | 2017-03-15 | 张静 | A kind of preparation method of epoxy resin adhesive |
| CN107815070A (en) * | 2017-11-09 | 2018-03-20 | 湖北航天化学技术研究所 | A kind of room temperature-curing low-viscosity high strength epoxy resin castable and preparation method |
| CN108794979A (en) * | 2018-03-29 | 2018-11-13 | 航天材料及工艺研究所 | A kind of high compression-strength and high pressure Lapie's carbon fibre composite and preparation method thereof |
| CN108865034A (en) * | 2018-05-24 | 2018-11-23 | 大连理工大学 | A kind of adhesive and preparation method thereof for being repaired under steel structure water |
| CN108913075A (en) * | 2018-06-27 | 2018-11-30 | 朱宇浩 | A kind of formula of epoxy resin adhesive |
| EP3753964A1 (en) * | 2019-06-19 | 2020-12-23 | Covestro Intellectual Property GmbH & Co. KG | An adhesive and its preparation and application |
Non-Patent Citations (1)
| Title |
|---|
| 赵玉飞等: "碳纤维网络增强环氧树脂基复合材料的制备与表征", 复合材料学报, vol. 32, no. 6, pages 1611 - 1617 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116178901A (en) * | 2023-03-17 | 2023-05-30 | 大连理工大学 | Preparation method of novel high-strength and high-brittleness 3D printing material for rock reconstruction |
| CN116178901B (en) * | 2023-03-17 | 2023-08-18 | 大连理工大学 | Preparation method of high-strength and high-brittleness 3D printing material for rock reconstruction |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5726177B2 (en) | Engineered cross-linked thermoplastic particles for interlayer reinforcement | |
| JP4349118B2 (en) | Method for producing sizing-coated carbon fiber | |
| CN115322717A (en) | Fiber-reinforced resin-based adhesive capable of being used for underwater construction and repairing underwater vehicle shell, and preparation method and construction method thereof | |
| CN105367793A (en) | Cyanate ester resin prepolymer with excellent space environment property, and prepreg, preparation method and application thereof | |
| KR102185380B1 (en) | Manufacturing method of basalt fiber-reinforced epoxy composites with natural graphite flakes intrduced | |
| CN109735059B (en) | Carbon fiber reinforced composite material and preparation method thereof | |
| CN108299825A (en) | Compound electromagnetic wave transparent material of fire resistant resin base and preparation method thereof when a kind of long | |
| CN109486104A (en) | A kind of benzoxazine resin base reinforcing fiber composite material and its forming method | |
| CN113897029B (en) | Glass fiber reinforced plastic prepreg for high-speed fan blade | |
| CN117070051B (en) | Epoxy resin system suitable for T800 carbon fiber and preparation method of composite material thereof | |
| CN108250985B (en) | High-temperature-resistant adhesive capable of being rapidly cured at room temperature and preparation method thereof | |
| CN116215028B (en) | Environment-friendly composite board based on recycled fibers and manufacturing process thereof | |
| CN112048151A (en) | Resin composition for preparing aramid composite core by pultrusion process | |
| CN110922616B (en) | Fiber reinforced polymer composite material and preparation method thereof | |
| CN114369269A (en) | Ablation material of phenolic resin impregnated carbon-based three-dimensional woven body and preparation method thereof | |
| CN111218110B (en) | Cyanate ester matrix resin and preparation method thereof | |
| Gibhardt et al. | Effects of the hygrothermal aging history on epoxy resins and GFRP composites | |
| CN112519269A (en) | Method for forming fiber reinforced resin matrix composite material | |
| CN117165034B (en) | Epoxy resin for high-frequency high-speed copper-clad plate and preparation method thereof | |
| CN110983788B (en) | Impregnation liquid for environment-friendly fiber framework material, preparation method and impregnation method | |
| CN117820994A (en) | Self-heating epoxy resin repair patch and preparation method thereof | |
| JPH08300395A (en) | Resin transfer molding method | |
| JP3581204B2 (en) | Epoxy resin prepreg and method for producing the same | |
| CN114804893B (en) | Electronic product shell based on continuous ceramic fibers and preparation method thereof | |
| CN110746745B (en) | Solid buoyancy material for deep-well development equipment and preparation method 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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20221111 |