CN110452650A - Wind electricity blade injecting type epoxy repair glue - Google Patents
Wind electricity blade injecting type epoxy repair glue Download PDFInfo
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- CN110452650A CN110452650A CN201910817133.0A CN201910817133A CN110452650A CN 110452650 A CN110452650 A CN 110452650A CN 201910817133 A CN201910817133 A CN 201910817133A CN 110452650 A CN110452650 A CN 110452650A
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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
- C09J163/00—Adhesives based on epoxy resins; Adhesives based on derivatives of epoxy resins
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- 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
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- 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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- Inorganic Chemistry (AREA)
- Epoxy Resins (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention belongs to epoxy glue technical fields, and in particular to wind electricity blade injecting type epoxy repair glue.It locally buys and discloses wind electricity blade injecting type epoxy repair glue, including component A and B component, the mass ratio of the component A and B component is 10:4;The component A includes 40~50 parts of graphene modified epoxy of self-control, 15~20 parts of bisphenol A epoxide resin, 20~30 parts of low-viscosity ammonia phenolic group trifunctional epoxy resin, 10~20 parts of reactive diluent, 1~3 part of graphene, 3~8 parts of thixotropic agent and 25~30 parts of active micro silicon powder;The B component includes 20~25 parts of polymercaptan, 10~15 parts of polyamide, 16~20 parts of modified fatty amine, 1~2 part of promotor, 1~3 part of graphene and 0.5~1 part of toughener.
Description
Technical field
The invention belongs to epoxy glue technical fields, and in particular to wind electricity blade injecting type epoxy repair glue.
Background technique
Wind electricity blade in order to expeditiously, reliably convert wind energy into electric energy, the structure size of design towards
Large scale direction is developed, this is especially the most significant with the wind turbine blade of MW class.The conventional design master of wind electricity blade
It to be composed of upper housing, shear beam and lower case three parts with being bonded, it is epoxy construction that they, which are bonded adhesive used,
Adhesive.
When for wind electricity blade bonding, structural strength and toughness are lacking for general epoxy construction gluing agent, full
The technology of foot not high intensity and high tenacity required by the wind turbine blade of wind electricity blade, especially MW class needs;This
Outside, the agent of epoxy construction gluing in solidification, is realized with heating method.Epoxy construction gluing agent is during being heating and curing
Exothermic reaction can occur, the internal temperature of epoxy construction gluing agent is caused to increase rapidly, internal temperature and surface temperature appearance are poor
Alienation, and then epoxy construction gluing agent is made to generate thermal stress, this thermal stress will lead to the expansion of epoxy construction gluing agent everywhere
Inconsistent with contraction distortion, final result can make the surface of epoxy construction gluing agent be easy to generate various blind cracks.
It is well known that the wind electricity blade being on active service is needed in the process of running by huge load, and need for a long time
It is on active service (the usually service phase of planning 20 years or so).Existing epoxy construction gluing agent is when for wind electricity blade bonding, on the one hand,
Its structural strength and toughness are extremely difficult to the high standard technology needs of wind electricity blade, especially wind turbine blade;On the other hand,
Due to epoxy construction gluing agent crizzle caused by be heating and curing can be with the effect of active time and stress load by
Flaring is big, and then the bonding region that will lead to wind electricity blade destroys, and eventually leads to the destruction of whole blade.Therefore it needs
Must be repaired to blade the period;
But the repair sheets of existing wind electricity blade bonding, because of the deficiency of its own structural strength, toughness and heat effect of curing,
Cause its repair efficiency bad, and since viscosity is excessively high, so that some areas repairing can not carry out.
Summary of the invention
Aiming at the problem that above-mentioned background technique is proposed, the purpose of the present invention is: it is intended to provide wind electricity blade injecting type
Epoxy repair glue.To realize the above-mentioned technical purpose, The technical solution adopted by the invention is as follows:
The mass ratio of wind electricity blade injecting type epoxy repair glue, including component A and B component, the component A and B component is 10:
4;The component A includes self-control 40~50 parts of graphene modified epoxy, 15~20 parts of bisphenol A epoxide resin, low-viscosity ammonia
20~30 parts of phenolic group trifunctional epoxy resin, 10~20 parts of reactive diluent, 1~3 part of graphene, 3~8 parts of thixotropic agent and work
25~30 parts of silicon powder of property;The B component includes 20~25 parts of polymercaptan, 10~15 parts of polyamide, modified fatty amine 16~20
Part, 1~2 part of promotor, 1~3 part of graphene and 0.5~1 part of toughener.
As a preferred solution of the present invention, the epoxide equivalent of the bisphenol A epoxide resin is 160-185g/eq.
As a preferred solution of the present invention, the reactive diluent is polypropylene glycol diglycidyl ether or ethylene glycol
Diglycidyl ether.
As a preferred solution of the present invention, the active micro silicon powder is the active micro silicon powder of Nano grade.
As a preferred solution of the present invention, the thixotropic agent is organobentonite or aluminium hydroxide.
As a preferred solution of the present invention, the promotor is 2-methylimidazole or 2- ethyl imidazol(e).
As a preferred solution of the present invention, the toughener is in liquid nitrile rubber and terminated polybutadiene liquid rubber
One kind.
As a preferred solution of the present invention, the preparation of the graphene modified epoxy are as follows:
S1: sodium hydroxide solution, 90 parts of polyacrylic acid N-butyls, 20 parts of cetyl front threes by 80 parts of mass fractions for 20%
Base ammonium bromide is uniformly mixed at normal temperature, obtains drawing change agent;
S2: graphene aqueous solution, 10 parts of bisphenol-As and 80 parts of epoxychloropropane that 100 parts of mass fractions are 1% are weighed at 70 DEG C
It is stirred 60 minutes in reaction kettle;
S3: in the case where continuing stirring in S2, reaction kettle is added in the change agent of drawing that S1 is obtained, and what addition S1 was obtained always draws change agent
27%, continue stirring 30 minutes, be then added it is remaining draw change agent, stir 90 minutes, it is mixed to obtain graphene modified epoxy
Close liquid;
S4: the graphene modified epoxy mixed liquor that S3 is obtained distills, and obtains graphene modified epoxy.
As a preferred solution of the present invention, the component A preparation the following steps are included:
S1: successively graphene modified epoxy, bisphenol A epoxide resin, low-viscosity ammonia phenolic group trifunctional epoxy resin are added
Enter in reaction kettle, be then stirred, reaction kettle is carried out in whipping process to be heated to 40~45 DEG C, and at 40~45 DEG C
It stirs 30 minutes, stirs evenly under constant temperature;
S2: during stirring, slowly graphene and thixotropic agent are added in reaction kettle in 5~6 minutes, addition finishes
Reaction kettle is vacuumized afterwards, is slowly stirred 60 minutes;
S3: continuously adding active micro silicon powder in the case of stirring, then under vacuum conditions quickly stirring 30 minutes, then plus
Enter reactive diluent, continues stirring 40 minutes, obtain component A.
The preparation of the B component the following steps are included:
Polymercaptan, polyamide, modified fatty amine: being successively added in reaction kettle, be then stirred by S1, right in whipping process
Reaction kettle carries out being heated to 40~45 DEG C, and stirs 30 minutes under 40~45 DEG C of constant temperature, stirs evenly;
S2: during stirring, successively graphene and promotor is slowly added in reaction kettle in 8~10 minutes, added
Reaction kettle is vacuumized after entering, is slowly stirred 30 minutes, toughener is then added, continues stirring 30 minutes, obtains B group
Point.
As a preferred solution of the present invention, the component A is uniformly mixed by weight ratio for 10:4 with the B component
Afterwards to get to Precast Concrete Segmental Bridges epoxy structural rubber.
Beneficial effects of the present invention:
1, the present invention mutual compatibility, collaboration epoxy resin in grapheme material is reasonably added, make structural strength, bending die
The graphene of amount and excellent thermal conductivity can be effectively and reliably distributed in the high molecular matrix of epoxy resin, to make institute
The modified epoxy structural adhesive of finished product can combine excellent structural strength and toughness properties, and significantly improve it and dissipate
Hot property, and then reduce, improve fuel factor of the structural adhesive in heat curing process;
2, structural strength, toughness and heat effect of curing performance excellent possessed by the present invention, so as to effectively and reliably
The high standard technical requirements for meeting wind electricity blade are conducive to the large scale wind turbine blade for designing and developing MW class, before
Jing Hao;
3, by the present invention in that with homemade graphene modified epoxy, can increase the tensile strength of repairing, compression strength,
Bending strength, and it is able to ascend the stability of product;
4, present invention addition low-viscosity ammonia phenolic group trifunctional epoxy resin is as raw material, so that the viscosity of product is relatively low, energy
Injection repairing is enough carried out to use;
5, the present invention controls the viscosity of product, further by the amount of addition reactive diluent with meet demand.
Specific embodiment
In order to make those skilled in the art that the present invention may be better understood, below by embodiment to the technology of the present invention
Scheme further illustrates.
Embodiment one
Wind electricity blade injecting type epoxy repair glue, including component A and B component,
The preparation of component A the following steps are included:
S1: successively by 40 parts of graphene modified epoxy, 15 parts of bisphenol A epoxide resin, low-viscosity ammonia phenolic group trifunctional ring
It in 20 parts of addition reaction kettles of oxygen resin, is then stirred, be heated to 40~45 DEG C to reaction kettle in whipping process, and
It stirs 30 minutes, stirs evenly under 40~45 DEG C of constant temperature;
S2: during stirring, slowly add in 1 part of graphene and 3 parts of addition reaction kettles of thixotropic agent in 5~6 minutes
Reaction kettle is vacuumized after entering, is slowly stirred 60 minutes;
S3: continuously adding 25 parts of active micro silicon powder in the case of stirring, then under vacuum conditions quickly stirring 30 minutes, so
10 parts of reactive diluent are added afterwards, continues stirring 40 minutes, obtains the component A of embodiment one.
The preparation of B component the following steps are included:
S1: it successively by 16 parts of 20 parts of polymercaptan, 10 parts of polyamide, modified fatty amine addition reaction kettles, is then stirred, In
Reaction kettle is carried out in whipping process to be heated to 40~45 DEG C, and is stirred 30 minutes under 40~45 DEG C of constant temperature, is stirred evenly;
S2: during stirring, reaction kettle is slowly successively added in 1 part of 1 part of graphene and promotor in 8~10 minutes
In, reaction kettle is vacuumized after addition, is slowly stirred 30 minutes, is then added 0.5 part of toughener, continue 30 points of stirring
Clock obtains the B component of embodiment one.
Embodiment two
Wind electricity blade injecting type epoxy repair glue, including component A and B component,
The preparation of component A the following steps are included:
S1: successively by 50 parts of graphene modified epoxy, 20 parts of bisphenol A epoxide resin, low-viscosity ammonia phenolic group trifunctional ring
It in 30 parts of addition reaction kettles of oxygen resin, is then stirred, be heated to 40~45 DEG C to reaction kettle in whipping process, and
It stirs 30 minutes, stirs evenly under 40~45 DEG C of constant temperature;
S2: during stirring, slowly add in 3 parts of graphene and 8 parts of addition reaction kettles of thixotropic agent in 5~6 minutes
Reaction kettle is vacuumized after entering, is slowly stirred 60 minutes;
S3: continuously adding 30 parts of active micro silicon powder in the case of stirring, then under vacuum conditions quickly stirring 30 minutes, so
20 parts of reactive diluent are added afterwards, continues stirring 40 minutes, obtains the component A of embodiment two.
The preparation of B component the following steps are included:
S1: it successively by 20 parts of 25 parts of polymercaptan, 15 parts of polyamide, modified fatty amine addition reaction kettles, is then stirred, In
Reaction kettle is carried out in whipping process to be heated to 40~45 DEG C, and is stirred 30 minutes under 40~45 DEG C of constant temperature, is stirred evenly;
S2: during stirring, reaction kettle is slowly successively added in 2 parts of 3 parts of graphene and promotor in 8~10 minutes
In, reaction kettle is vacuumized after addition, is slowly stirred 30 minutes, is then added 1 part of toughener, continue stirring 30 minutes,
Obtain the B component of embodiment two.
Embodiment three
Wind electricity blade injecting type epoxy repair glue, including component A and B component,
The preparation of component A the following steps are included:
S1: successively by 45 parts of graphene modified epoxy, 18 parts of bisphenol A epoxide resin, low-viscosity ammonia phenolic group trifunctional ring
It in 20 parts of addition reaction kettles of oxygen resin, is then stirred, be heated to 40~45 DEG C to reaction kettle in whipping process, and
It stirs 30 minutes, stirs evenly under 40~45 DEG C of constant temperature;
S2: during stirring, slowly add in 2 parts of graphene and 6 parts of addition reaction kettles of thixotropic agent in 5~6 minutes
Reaction kettle is vacuumized after entering, is slowly stirred 60 minutes;
S3: continuously adding 28 parts of active micro silicon powder in the case of stirring, then under vacuum conditions quickly stirring 30 minutes, so
15 parts of reactive diluent are added afterwards, continues stirring 40 minutes, obtains the component A of embodiment three.
The preparation of B component the following steps are included:
S1: it successively by 18 parts of 22 parts of polymercaptan, 12 parts of polyamide, modified fatty amine addition reaction kettles, is then stirred, In
Reaction kettle is carried out in whipping process to be heated to 40~45 DEG C, and is stirred 30 minutes under 40~45 DEG C of constant temperature, is stirred evenly;
S2: during stirring, reaction kettle is slowly successively added in 2 parts of 2 parts of graphene and promotor in 8~10 minutes
In, reaction kettle is vacuumized after addition, is slowly stirred 30 minutes, is then added 0.5 part of toughener, continue 30 points of stirring
Clock obtains the B component of embodiment three.
Example IV
Wind electricity blade injecting type epoxy repair glue, including component A and B component,
The preparation of component A the following steps are included:
S1: successively by 40 parts of graphene modified epoxy, 20 parts of bisphenol A epoxide resin, low-viscosity ammonia phenolic group trifunctional ring
It in 25 parts of addition reaction kettles of oxygen resin, is then stirred, be heated to 40~45 DEG C to reaction kettle in whipping process, and
It stirs 30 minutes, stirs evenly under 40~45 DEG C of constant temperature;
S2: during stirring, slowly add in 2 parts of graphene and 6 parts of addition reaction kettles of thixotropic agent in 5~6 minutes
Reaction kettle is vacuumized after entering, is slowly stirred 60 minutes;
S3: continuously adding 30 parts of active micro silicon powder in the case of stirring, then under vacuum conditions quickly stirring 30 minutes, so
10 parts of reactive diluent are added afterwards, continues stirring 40 minutes, obtains the component A of example IV.
The preparation of B component the following steps are included:
S1: it successively by 20 parts of 20 parts of polymercaptan, 15 parts of polyamide, modified fatty amine addition reaction kettles, is then stirred, In
Reaction kettle is carried out in whipping process to be heated to 40~45 DEG C, and is stirred 30 minutes under 40~45 DEG C of constant temperature, is stirred evenly;
S2: during stirring, reaction kettle is slowly successively added in 1 part of 1 part of graphene and promotor in 8~10 minutes
In, reaction kettle is vacuumized after addition, is slowly stirred 30 minutes, is then added 1 part of toughener, continue stirring 30 minutes,
Obtain the B component of example IV.
Embodiment five
Wind electricity blade injecting type epoxy repair glue, including component A and B component,
The preparation of component A the following steps are included:
S1: successively by 50 parts of graphene modified epoxy, 20 parts of bisphenol A epoxide resin, low-viscosity ammonia phenolic group trifunctional ring
It in 20 parts of addition reaction kettles of oxygen resin, is then stirred, be heated to 40~45 DEG C to reaction kettle in whipping process, and
It stirs 30 minutes, stirs evenly under 40~45 DEG C of constant temperature;
S2: during stirring, slowly add in 3 parts of graphene and 7 parts of addition reaction kettles of thixotropic agent in 5~6 minutes
Reaction kettle is vacuumized after entering, is slowly stirred 60 minutes;
S3: continuously adding 25 parts of active micro silicon powder in the case of stirring, then under vacuum conditions quickly stirring 30 minutes, so
10 parts of reactive diluent are added afterwards, continues stirring 40 minutes, obtains the component A of embodiment five.
The preparation of B component the following steps are included:
S1: it successively by 16 parts of 20 parts of polymercaptan, 15 parts of polyamide, modified fatty amine addition reaction kettles, is then stirred, In
Reaction kettle is carried out in whipping process to be heated to 40~45 DEG C, and is stirred 30 minutes under 40~45 DEG C of constant temperature, is stirred evenly;
S2: during stirring, reaction kettle is slowly successively added in 2 parts of 3 parts of graphene and promotor in 8~10 minutes
In, reaction kettle is vacuumized after addition, is slowly stirred 30 minutes, is then added 0.5 part of toughener, continue 30 points of stirring
Clock obtains the B component of embodiment five.
Embodiment six
Wind electricity blade injecting type epoxy repair glue, including component A and B component,
The preparation of component A the following steps are included:
S1: successively by 48 parts of graphene modified epoxy, 15 parts of bisphenol A epoxide resin, low-viscosity ammonia phenolic group trifunctional ring
It in 30 parts of addition reaction kettles of oxygen resin, is then stirred, be heated to 40~45 DEG C to reaction kettle in whipping process, and
It stirs 30 minutes, stirs evenly under 40~45 DEG C of constant temperature;
S2: during stirring, slowly add in 3 parts of graphene and 5 parts of addition reaction kettles of thixotropic agent in 5~6 minutes
Reaction kettle is vacuumized after entering, is slowly stirred 60 minutes;
S3: continuously adding 25 parts of active micro silicon powder in the case of stirring, then under vacuum conditions quickly stirring 30 minutes, so
15 parts of reactive diluent are added afterwards, continues stirring 40 minutes, obtains the component A of embodiment six.
The preparation of B component the following steps are included:
S1: it successively by 20 parts of 25 parts of polymercaptan, 10 parts of polyamide, modified fatty amine addition reaction kettles, is then stirred, In
Reaction kettle is carried out in whipping process to be heated to 40~45 DEG C, and is stirred 30 minutes under 40~45 DEG C of constant temperature, is stirred evenly;
S2: during stirring, reaction kettle is slowly successively added in 2 parts of 3 parts of graphene and promotor in 8~10 minutes
In, reaction kettle is vacuumized after addition, is slowly stirred 30 minutes, is then added 0.5 part of toughener, continue 30 points of stirring
Clock obtains the B component of embodiment six.
Embodiment seven
Wind electricity blade injecting type epoxy repair glue, including component A and B component,
The preparation of component A the following steps are included:
S1: successively by 45 parts of graphene modified epoxy, 18 parts of bisphenol A epoxide resin, low-viscosity ammonia phenolic group trifunctional ring
It in 20 parts of addition reaction kettles of oxygen resin, is then stirred, be heated to 40~45 DEG C to reaction kettle in whipping process, and
It stirs 30 minutes, stirs evenly under 40~45 DEG C of constant temperature;
S2: during stirring, slowly add in 2 parts of graphene and 7 parts of addition reaction kettles of thixotropic agent in 5~6 minutes
Reaction kettle is vacuumized after entering, is slowly stirred 60 minutes;
S3: continuously adding 30 parts of active micro silicon powder in the case of stirring, then under vacuum conditions quickly stirring 30 minutes, so
20 parts of reactive diluent are added afterwards, continues stirring 40 minutes, obtains the component A of embodiment seven.
The preparation of B component the following steps are included:
S1: it successively by 20 parts of 20 parts of polymercaptan, 12 parts of polyamide, modified fatty amine addition reaction kettles, is then stirred, In
Reaction kettle is carried out in whipping process to be heated to 40~45 DEG C, and is stirred 30 minutes under 40~45 DEG C of constant temperature, is stirred evenly;
S2: during stirring, reaction kettle is slowly successively added in 1 part of 3 parts of graphene and promotor in 8~10 minutes
In, reaction kettle is vacuumized after addition, is slowly stirred 30 minutes, is then added 1 part of toughener, continue stirring 30 minutes,
Obtain the B component of embodiment seven.
Embodiment eight
Wind electricity blade injecting type epoxy repair glue, including component A and B component,
The preparation of component A the following steps are included:
S1: successively by 42 parts of graphene modified epoxy, 19 parts of bisphenol A epoxide resin, low-viscosity ammonia phenolic group trifunctional ring
It in 21 parts of addition reaction kettles of oxygen resin, is then stirred, be heated to 40~45 DEG C to reaction kettle in whipping process, and
It stirs 30 minutes, stirs evenly under 40~45 DEG C of constant temperature;
S2: during stirring, slowly add in 2 parts of graphene and 4 parts of addition reaction kettles of thixotropic agent in 5~6 minutes
Reaction kettle is vacuumized after entering, is slowly stirred 60 minutes;
S3: continuously adding 25 parts of active micro silicon powder in the case of stirring, then under vacuum conditions quickly stirring 30 minutes, so
16 parts of reactive diluent are added afterwards, continues stirring 40 minutes, obtains the component A of embodiment eight.
The preparation of B component the following steps are included:
S1: it successively by 18 parts of 20 parts of polymercaptan, 15 parts of polyamide, modified fatty amine addition reaction kettles, is then stirred, In
Reaction kettle is carried out in whipping process to be heated to 40~45 DEG C, and is stirred 30 minutes under 40~45 DEG C of constant temperature, is stirred evenly;
S2: during stirring, reaction kettle is slowly successively added in 1 part of 3 parts of graphene and promotor in 8~10 minutes
In, reaction kettle is vacuumized after addition, is slowly stirred 30 minutes, is then added 1 part of toughener, continue stirring 30 minutes,
Obtain the B component of embodiment eight.
When use, the component A that each embodiment is obtained and B component are mixed according to the ratio of 10:4, obtained
To wind electricity blade injecting type epoxy repair glue, and performance test is done to it, obtains table 1
Table 1: properties of product test data
Pass through table 1, it can be seen that performance of the invention will be better than contrast groups comprehensively.
Above-described embodiment is merely exemplary to illustrate the principle of the present invention and its effect, and is not intended to limit the present invention.It is any ripe
The personage for knowing this technology all without departing from the spirit and scope of the present invention, carries out modifications and changes to above-described embodiment.Cause
This, all those of ordinary skill in the art are completed without departing from the spirit and technical ideas disclosed in the present invention
All equivalent modifications or change, should be covered by the claims of the present invention.
Claims (10)
1. wind electricity blade injecting type epoxy repair glue, it is characterised in that: including component A and B component, the component A and B component
Mass ratio be 10:4;The component A include self-control 40~50 parts of graphene modified epoxy, bisphenol A epoxide resin 15~
20 parts, 20~30 parts of low-viscosity ammonia phenolic group trifunctional epoxy resin, 10~20 parts of reactive diluent, 1~3 part of graphene, touching
Become 3~8 parts and 25~30 parts of active micro silicon powder of agent;The B component includes 20~25 parts of polymercaptan, 10~15 parts of polyamide, changes
16~20 parts of fatty amine of property, 1~2 part of promotor, 1~3 part of graphene and 0.5~1 part of toughener.
2. wind electricity blade according to claim 1 injecting type epoxy repair glue, it is characterised in that: the bisphenol-A epoxy
The epoxide equivalent of resin is 160-185g/eq.
3. wind electricity blade according to claim 1 injecting type epoxy repair glue, it is characterised in that: the reactive diluent
For polypropylene glycol diglycidyl ether or ethylene glycol diglycidylether.
4. wind electricity blade according to claim 1 injecting type epoxy repair glue, it is characterised in that: the active micro silicon powder
For the active micro silicon powder of Nano grade.
5. wind electricity blade according to claim 1 injecting type epoxy repair glue, it is characterised in that: the thixotropic agent be for
Organobentonite or aluminium hydroxide.
6. wind electricity blade according to claim 1 injecting type epoxy repair glue, it is characterised in that: the promotor is 2-
Methylimidazole or 2- ethyl imidazol(e).
7. wind electricity blade according to claim 1 injecting type epoxy repair glue, it is characterised in that: the toughener is liquid
One of body nitrile rubber and terminated polybutadiene liquid rubber.
8. wind electricity blade according to claim 1 injecting type epoxy repair glue, it is characterised in that: the graphene is modified
The preparation of epoxy resin are as follows:
S1: sodium hydroxide solution, 90 parts of polyacrylic acid N-butyls, 20 parts of cetyl front threes by 80 parts of mass fractions for 20%
Base ammonium bromide is uniformly mixed at normal temperature, obtains drawing change agent;
S2: graphene aqueous solution, 10 parts of bisphenol-As and 80 parts of epoxychloropropane that 100 parts of mass fractions are 1% are weighed at 70 DEG C
It is stirred 60 minutes in reaction kettle;
S3: in the case where continuing stirring in S2, reaction kettle is added in the change agent of drawing that S1 is obtained, and what addition S1 was obtained always draws change agent
27%, continue stirring 30 minutes, be then added it is remaining draw change agent, stir 90 minutes, it is mixed to obtain graphene modified epoxy
Close liquid;
S4: the graphene modified epoxy mixed liquor that S3 is obtained distills, and obtains graphene modified epoxy.
9. wind electricity blade according to claim 1 injecting type epoxy repair glue, it is characterised in that: the system of the component A
It is standby the following steps are included:
S1: successively graphene modified epoxy, bisphenol A epoxide resin, low-viscosity ammonia phenolic group trifunctional epoxy resin are added
Enter in reaction kettle, be then stirred, reaction kettle is carried out in whipping process to be heated to 40~45 DEG C, and at 40~45 DEG C
It stirs 30 minutes, stirs evenly under constant temperature;
S2: during stirring, slowly graphene and thixotropic agent are added in reaction kettle in 5~6 minutes, addition finishes
Reaction kettle is vacuumized afterwards, is slowly stirred 60 minutes;
S3: continuously adding active micro silicon powder in the case of stirring, then under vacuum conditions quickly stirring 30 minutes, then plus
Enter reactive diluent, continue stirring 40 minutes, obtain component A,
The preparation of the B component the following steps are included:
Polymercaptan, polyamide, modified fatty amine: being successively added in reaction kettle, be then stirred by S1, right in whipping process
Reaction kettle carries out being heated to 40~45 DEG C, and stirs 30 minutes under 40~45 DEG C of constant temperature, stirs evenly;
S2: during stirring, successively graphene and promotor is slowly added in reaction kettle in 8~10 minutes, added
Reaction kettle is vacuumized after entering, is slowly stirred 30 minutes, toughener is then added, continues stirring 30 minutes, obtains B group
Point.
10. wind electricity blade according to claim 1 injecting type epoxy repair glue, it is characterised in that: the component A and institute
B component is stated by weight ratio and is 10:4 after mixing to get to Precast Concrete Segmental Bridges epoxy structural rubber.
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CN201910817133.0A CN110452650A (en) | 2019-08-30 | 2019-08-30 | Wind electricity blade injecting type epoxy repair glue |
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CN201910817133.0A CN110452650A (en) | 2019-08-30 | 2019-08-30 | Wind electricity blade injecting type epoxy repair glue |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112625633A (en) * | 2020-12-11 | 2021-04-09 | 固德电材系统(苏州)股份有限公司 | Weather-resistant epoxy resin adhesive for wind power blade and preparation method and application thereof |
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