CN117264176B - Hyperbranched modified amine hand paste epoxy resin composition and preparation method thereof - Google Patents
Hyperbranched modified amine hand paste epoxy resin composition and preparation method thereof Download PDFInfo
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- CN117264176B CN117264176B CN202311374620.7A CN202311374620A CN117264176B CN 117264176 B CN117264176 B CN 117264176B CN 202311374620 A CN202311374620 A CN 202311374620A CN 117264176 B CN117264176 B CN 117264176B
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- 150000001412 amines Chemical class 0.000 title claims abstract description 64
- 239000003822 epoxy resin Substances 0.000 title claims abstract description 49
- 229920000647 polyepoxide Polymers 0.000 title claims abstract description 49
- 239000000203 mixture Substances 0.000 title claims abstract description 31
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 77
- 229920005989 resin Polymers 0.000 claims abstract description 26
- 239000011347 resin Substances 0.000 claims abstract description 26
- 239000002202 Polyethylene glycol Substances 0.000 claims abstract description 11
- 125000004386 diacrylate group Chemical group 0.000 claims abstract description 11
- 229920001223 polyethylene glycol Polymers 0.000 claims abstract description 11
- -1 alicyclic amine Chemical class 0.000 claims abstract description 10
- GYZLOYUZLJXAJU-UHFFFAOYSA-N diglycidyl ether Chemical compound C1OC1COCC1CO1 GYZLOYUZLJXAJU-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000003085 diluting agent Substances 0.000 claims abstract description 8
- 125000003700 epoxy group Chemical group 0.000 claims abstract description 7
- 239000004721 Polyphenylene oxide Substances 0.000 claims abstract description 5
- 229920000570 polyether Polymers 0.000 claims abstract description 5
- 238000009787 hand lay-up Methods 0.000 claims description 22
- 238000003756 stirring Methods 0.000 claims description 17
- SHKUUQIDMUMQQK-UHFFFAOYSA-N 2-[4-(oxiran-2-ylmethoxy)butoxymethyl]oxirane Chemical compound C1OC1COCCCCOCC1CO1 SHKUUQIDMUMQQK-UHFFFAOYSA-N 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 6
- GEQHKFFSPGPGLN-UHFFFAOYSA-N cyclohexane-1,3-diamine Chemical compound NC1CCCC(N)C1 GEQHKFFSPGPGLN-UHFFFAOYSA-N 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 238000005303 weighing Methods 0.000 claims description 6
- WTYYGFLRBWMFRY-UHFFFAOYSA-N 2-[6-(oxiran-2-ylmethoxy)hexoxymethyl]oxirane Chemical compound C1OC1COCCCCCCOCC1CO1 WTYYGFLRBWMFRY-UHFFFAOYSA-N 0.000 claims description 5
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 4
- FDLQZKYLHJJBHD-UHFFFAOYSA-N [3-(aminomethyl)phenyl]methanamine Chemical compound NCC1=CC=CC(CN)=C1 FDLQZKYLHJJBHD-UHFFFAOYSA-N 0.000 claims description 3
- 239000004842 bisphenol F epoxy resin Substances 0.000 claims description 3
- YSUQLAYJZDEMOT-UHFFFAOYSA-N 2-(butoxymethyl)oxirane Chemical compound CCCCOCC1CO1 YSUQLAYJZDEMOT-UHFFFAOYSA-N 0.000 claims description 2
- QNYBOILAKBSWFG-UHFFFAOYSA-N 2-(phenylmethoxymethyl)oxirane Chemical compound C1OC1COCC1=CC=CC=C1 QNYBOILAKBSWFG-UHFFFAOYSA-N 0.000 claims description 2
- KUAUJXBLDYVELT-UHFFFAOYSA-N 2-[[2,2-dimethyl-3-(oxiran-2-ylmethoxy)propoxy]methyl]oxirane Chemical compound C1OC1COCC(C)(C)COCC1CO1 KUAUJXBLDYVELT-UHFFFAOYSA-N 0.000 claims description 2
- NOYXQFBTCCSKQG-UHFFFAOYSA-N 2-[[2-(oxiran-2-ylmethoxy)cyclohexyl]oxymethyl]oxirane Chemical compound C1OC1COC1CCCCC1OCC1CO1 NOYXQFBTCCSKQG-UHFFFAOYSA-N 0.000 claims description 2
- QTWJRLJHJPIABL-UHFFFAOYSA-N 2-methylphenol;3-methylphenol;4-methylphenol Chemical compound CC1=CC=C(O)C=C1.CC1=CC=CC(O)=C1.CC1=CC=CC=C1O QTWJRLJHJPIABL-UHFFFAOYSA-N 0.000 claims description 2
- RNLHGQLZWXBQNY-UHFFFAOYSA-N 3-(aminomethyl)-3,5,5-trimethylcyclohexan-1-amine Chemical compound CC1(C)CC(N)CC(C)(CN)C1 RNLHGQLZWXBQNY-UHFFFAOYSA-N 0.000 claims description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 2
- 239000004593 Epoxy Substances 0.000 claims description 2
- FQYUMYWMJTYZTK-UHFFFAOYSA-N Phenyl glycidyl ether Chemical compound C1OC1COC1=CC=CC=C1 FQYUMYWMJTYZTK-UHFFFAOYSA-N 0.000 claims description 2
- 229910052801 chlorine Inorganic materials 0.000 claims description 2
- 239000000460 chlorine Substances 0.000 claims description 2
- 229930003836 cresol Natural products 0.000 claims description 2
- SSJXIUAHEKJCMH-UHFFFAOYSA-N cyclohexane-1,2-diamine Chemical compound NC1CCCCC1N SSJXIUAHEKJCMH-UHFFFAOYSA-N 0.000 claims description 2
- 239000004841 bisphenol A epoxy resin Substances 0.000 claims 1
- 201000004624 Dermatitis Diseases 0.000 abstract description 5
- WVDDGKGOMKODPV-UHFFFAOYSA-N Benzyl alcohol Chemical compound OCC1=CC=CC=C1 WVDDGKGOMKODPV-UHFFFAOYSA-N 0.000 description 9
- PXKLMJQFEQBVLD-UHFFFAOYSA-N bisphenol F Chemical compound C1=CC(O)=CC=C1CC1=CC=C(O)C=C1 PXKLMJQFEQBVLD-UHFFFAOYSA-N 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 235000019445 benzyl alcohol Nutrition 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 2
- 150000004985 diamines Chemical class 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- HPILSDOMLLYBQF-UHFFFAOYSA-N 2-[1-(oxiran-2-ylmethoxy)butoxymethyl]oxirane Chemical compound C1OC1COC(CCC)OCC1CO1 HPILSDOMLLYBQF-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000011342 resin composition Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000009755 vacuum infusion Methods 0.000 description 1
- 239000003039 volatile agent Substances 0.000 description 1
Classifications
-
- 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
- C08G59/504—Amines containing an atom other than nitrogen belonging to the amine group, carbon and hydrogen
-
- 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
- C08G59/20—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 epoxy compounds used
- C08G59/22—Di-epoxy compounds
- C08G59/24—Di-epoxy compounds carbocyclic
- C08G59/245—Di-epoxy compounds carbocyclic aromatic
-
- 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
- C08G59/5013—Amines aliphatic containing more than seven carbon atoms, e.g. fatty amines
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Epoxy Resins (AREA)
Abstract
The invention discloses a hyperbranched modified amine hand paste epoxy resin composition and a preparation method thereof, wherein the hyperbranched modified amine hand paste epoxy resin composition comprises a resin component and a curing agent component, the weight ratio of the resin component to the curing agent component is 100:30-35, and the resin component comprises the following components in parts by weight: 80-100 parts of epoxy resin and 3-15 parts of diluent; the curing agent comprises the following components in parts by weight: 50-60 parts of hyperbranched amine curing agent A, 20-40 parts of hyperbranched amine curing agent B and 2-10 parts of accelerator. The hyperbranched amine curing agent A is prepared by reacting a polyether amine curing agent with glycidyl ether with epoxy groups, and the hyperbranched amine curing agent B is prepared by reacting an alicyclic amine curing agent with polyethylene glycol diacrylate. The hyperbranched modified amine hand paste epoxy resin composition prepared by the invention has excellent mechanical properties, and simultaneously has the advantages of low heat release, high toughness, low volatility, low skin allergy and the like.
Description
Technical Field
The invention belongs to the technical field of resin compositions, and particularly relates to a hyperbranched modified amine hand lay-up epoxy resin composition and a preparation method thereof.
Background
As an important component of the wind generating set, the wind power blade is mainly made of fiber reinforced epoxy resin composite materials. The epoxy resin becomes the most common matrix resin of the wind power blade with excellent performance, the manufacture of the large wind power blade at present mainly adopts a vacuum infusion molding process, bonding and reinforcement are required after each component is molded, and the reinforcement usually adopts a manual paste molding process. The hand lay-up epoxy resin and the curing agent are materials commonly used in the hand lay-up molding process, but the existing hand lay-up resin system mostly adopts a basic amine curing agent system, so that the problems of white blade, low toughness, high volatility and the like caused by high heat release of the hand lay-up resin are caused, and manual operation is required for strengthening the die joint and other areas of the wind power blade, so that the skin allergy phenomenon of constructors is easy to occur. Therefore, there is a need to develop a novel hand lay-up resin to solve the above-mentioned problems.
Disclosure of Invention
It is an object of the present invention to address at least the above problems and/or disadvantages and to provide at least the advantages described below.
To achieve these objects and other advantages and in accordance with the purpose of the invention, there is provided a hyperbranched modified amine hand lay-up epoxy resin composition comprising a resin component and a curing agent component in a weight ratio of 100:30 to 35, wherein,
The resin component comprises the following components in parts by weight: 80-100 parts of epoxy resin and 3-15 parts of diluent;
The curing agent comprises the following components in parts by weight: 50-60 parts of hyperbranched amine curing agent A, 20-40 parts of hyperbranched amine curing agent B and 2-10 parts of accelerator.
Preferably, the viscosity of the epoxy resin is 8000-15000 cps at 25 ℃, the epoxy equivalent is 176-195 g/eq, and the hydrolyzable chlorine is less than or equal to 500ppm.
Preferably, the epoxy resin is one or more of E-51, E-54, E-55, 828, 6010, 128R, 128S, 826, 127, 126, 186, more preferably one or more of E-51, E-54.
Preferably, the diluent is one or more of C 12-C14 alkyl glycidyl ether, 1, 4-butanediol diglycidyl ether, butyl glycidyl ether, phenyl glycidyl ether, benzyl glycidyl ether, cresol glycidyl ether, p-tert-butylphenol glycidyl Gan Jiyou ether, n-butanediol diglycidyl ether, neopentyl glycol diglycidyl ether, 1, 6-hexanediol diglycidyl ether, 1, 2-cyclohexanediol diglycidyl ether, more preferably one or more of 1, 6-hexanediol diglycidyl ether, 1, 4-butanediol diglycidyl ether, C 12-C14 alkyl glycidyl ether.
Ext> preferablyext>,ext> theext> promoterext> isext> oneext> orext> moreext> ofext> DMPext> -ext> 30ext>,ext> HDGext> -ext> Aext> /ext> Bext>,ext> triethylamineext>,ext> triethanolamineext>,ext> BMDAext>,ext> DBUext>,ext> DMPext> -ext> 10ext>,ext> pyridineext>,ext> bisphenolext> Aext>,ext> benzylext> alcoholext>,ext> moreext> preferablyext> oneext> orext> moreext> ofext> benzylext> alcoholext>,ext> DMPext> -ext> 30ext>.ext>
Preferably, the hyperbranched amine curing agent A has the following structure:
The hyperbranched amine curing agent B has the following structure:
the preparation method of the hyperbranched modified amine hand lay-up epoxy resin composition is characterized by comprising the following steps of:
step one, a preparation method of a hyperbranched amine curing agent A comprises the following steps: weighing polyether amine curing agent and glycidyl ether with epoxy group according to the mass ratio of 13:0.5-3, sequentially adding the polyether amine curing agent and the glycidyl ether with epoxy group into a container, stirring for 0.5-2 h at room temperature, heating to 50-70 ℃, continuously stirring for 1-3 h, fully reacting, and cooling to normal temperature after the reaction is completed to obtain hyperbranched amine curing agent A;
Step two, a preparation method of the hyperbranched amine curing agent B comprises the following steps: adding alicyclic amine curing agent into a container, and continuously stirring; weighing polyethylene glycol diacrylate according to the molar ratio of the alicyclic amine curing agent to the polyethylene glycol diacrylate of 3:0.5-1.5, dripping the polyethylene glycol diacrylate into a container by using a dripping device, heating to 80-100 ℃ after dripping, continuously stirring for 0.5-2 h to fully react, and cooling to normal temperature after the reaction is completed to obtain the hyperbranched amine curing agent B;
Step three, a preparation method of a curing agent component comprises the following steps: sequentially adding the hyperbranched amine curing agent A, the hyperbranched amine curing agent B and the accelerator into a reactor according to parts by weight, stirring and mixing for 0.5-2 hours at room temperature to prepare a curing agent component;
And step four, a preparation method of a resin component: according to the weight portion, the epoxy resin and the diluent are added into a reactor in sequence and stirred and mixed for 0.5 to 2 hours at the temperature of 60 to 80 ℃ to prepare the resin component.
Preferably, in the first step, the polyetheramine curing agent is one or more of D200, D230, and D400, and more preferably D230; the glycidyl ether with epoxy group is one or more of bisphenol A type epoxy resin, bisphenol F type epoxy resin, 1, 4-butanediol diglycidyl ether and 1, 6-hexanediol diglycidyl ether, and more preferably bisphenol F type epoxy resin.
Preferably, in the second step, the alicyclic amine curing agent is one or more of 1, 2-cyclohexanediamine, 1, 3-cyclohexanediamine, methylcyclopentylene diamine, isophorone diamine, and m-xylylenediamine, more preferably one or more of 1, 3-cyclohexanediamine, m-xylylenediamine, and methylcyclopentylene diamine.
The application of the hyperbranched modified amine hand paste epoxy resin composition in wind power blades.
The invention at least comprises the following beneficial effects: the invention provides a hyperbranched modified amine hand paste epoxy resin composition which has excellent mechanical properties, and meanwhile, the composition has the advantages of low heat release, high toughness, low volatility and low skin allergy to site constructors, and can be used for reinforcing mold closing joints and other areas of wind power blades.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Detailed Description
The present invention is described in further detail below with reference to examples to enable those skilled in the art to practice the same by referring to the description.
It will be understood that terms, such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
Example 1
The hyperbranched modified amine hand lay-up epoxy resin composition comprises a resin component and a curing agent component, wherein the weight ratio of the resin component to the curing agent component is 100:32, and the resin component is as follows: an epoxy resin and a diluent; the components of the curing agent are as follows: hyperbranched amine curing agent A, hyperbranched amine curing agent B and accelerator.
The preparation method comprises the following steps:
Step one, a preparation method of a hyperbranched amine curing agent A comprises the following steps: weighing D230 and bisphenol F epoxy resin according to the mass ratio of 13:1, sequentially adding the epoxy resin into a round-bottom three-neck flask, stirring for 1h at room temperature, then heating to 60 ℃, continuously stirring for 2h, fully reacting the D230 and the bisphenol F epoxy resin, and cooling to the room temperature after the reaction is completed to obtain the hyperbranched amine curing agent A;
Step two, a preparation method of the hyperbranched amine curing agent B comprises the following steps: adding 1, 3-cyclohexanediamine into a round bottom three-neck flask, and continuously stirring; weighing polyethylene glycol diacrylate according to the mol ratio of 1, 3-cyclohexanediamine to polyethylene glycol diacrylate of 3:1, dripping the polyethylene glycol diacrylate into a flask by using a dripping funnel, heating to 90 ℃ after dripping, continuously stirring for 1h to enable the 1, 3-cyclohexanediamine to fully react with the polyethylene glycol diacrylate, and cooling to normal temperature after the reaction is completed to obtain the hyperbranched amine curing agent B;
Step three, a preparation method of a curing agent component comprises the following steps: sequentially adding 60 parts of hyperbranched amine curing agent A, 35 parts of hyperbranched amine curing agent B and 5 parts of benzyl alcohol into a glass reactor according to parts by weight, stirring and mixing for 1h at room temperature to prepare curing agent components, and placing the curing agent components into a sealed container for storage at room temperature;
And step four, a preparation method of a resin component: 92 parts of E51 epoxy resin and 8 parts of 1, 4-butanediol diglycidyl ether are sequentially added into a glass reactor according to parts by weight, stirred and mixed for 1h at 70 ℃ to prepare a resin component, and the resin component is placed into a sealed container for storage at room temperature.
When in use, the curing agent component and the resin component are mixed to obtain the hyperbranched modified amine hand lay-up epoxy resin composition.
Example 2
The resin component is as follows: 90 parts of E51 epoxy resin and 10 parts of 1, 4-butanediol diglycidyl ether; the components of the curing agent are as follows: 60 parts of hyperbranched amine curing agent A, 30 parts of hyperbranched amine curing agent B and 10 parts of benzyl alcohol; the remaining steps were the same as in example 1.
Example 3
The resin component is as follows: 92 parts of E51 epoxy resin and 8 parts of 1, 4-butanediol diglycidyl ether; the components of the curing agent are as follows: 60 parts of hyperbranched amine curing agent A, 30 parts of hyperbranched amine curing agent B and 10 parts of benzyl alcohol; the remaining steps were the same as in example 1.
Comparative example 1
An existing hand lay-up epoxy resin composition comprises: epoxy resin (DOW 730E) and curing agent (DOW 735H), wherein the weight ratio of the epoxy resin to the curing agent is 100:34.
Comparative example 2
An existing hand lay-up epoxy resin composition comprises: an epoxy resin (5089A) and a curing agent (5089B), wherein the weight ratio of the epoxy resin to the curing agent is 100:30.
The physicochemical and mechanical properties of the compositions of examples 1 to 3, comparative example 1 and comparative example 2 were tested. Mixing the components, stirring uniformly, then preserving the temperature of the composition at 25 ℃ for 24 hours, preserving the temperature of the composition at 70 ℃ for 8 hours, and curing to obtain a cured product. The following tests were performed:
(1) After cutting the cured product, carrying out a tensile mechanical (ISO 527-2) test;
(2) Glass transition temperature (Tg) (according to GB/T19466.2) test;
(3) The composition was tested for mixing viscosity (according to GB/T22314);
(4) The uniformly stirred composition was subjected to a room temperature (25 ℃) exothermic peak (following ASTM D2471) test;
(5) Resin and curative volatiles (according to GB/T23986-2009) test;
(6) Skin allergy (according to GB/T21604-2008) test.
As shown in the test results in Table 1, compared with the existing hand lay-up epoxy resin composition, the hyperbranched modified amine hand lay-up epoxy resin composition prepared by the invention has the advantages of excellent mechanical properties, low heat release, high toughness, low volatility, low skin allergy and the like.
TABLE 1
Although embodiments of the present invention have been disclosed above, it is not limited to the details and embodiments shown, it is well suited to various fields of use for which the invention is suited, and further modifications may be readily made by one skilled in the art, and the invention is therefore not to be limited to the particular details and examples shown and described herein, without departing from the general concepts defined by the claims and the equivalents thereof.
Claims (9)
1. The modified amine hand lay-up epoxy resin composition is characterized by comprising a resin component and a curing agent component, wherein the weight ratio of the resin component to the curing agent component is 100:30-35,
The resin component comprises the following components in parts by weight: 80-100 parts of epoxy resin and 3-15 parts of diluent;
the curing agent comprises the following components in parts by weight: 50-60 parts of an amine curing agent A, 20-40 parts of an amine curing agent B and 2-10 parts of an accelerator;
the preparation method of the modified amine hand lay-up epoxy resin composition comprises the following steps:
Step one, a preparation method of an amine curing agent A comprises the following steps: weighing polyether amine curing agent and glycidyl ether with epoxy group according to the mass ratio of 13:0.5-3, sequentially adding the polyether amine curing agent and the glycidyl ether with epoxy group into a container, stirring for 0.5-2 h at room temperature, heating to 50-70 ℃, continuously stirring for 1-3 h, fully reacting, and cooling to normal temperature after the reaction is completed to obtain amine curing agent A;
Step two, the preparation method of the amine curing agent B comprises the following steps: adding alicyclic amine curing agent into a container, and continuously stirring; weighing polyethylene glycol diacrylate according to the molar ratio of the alicyclic amine curing agent to the polyethylene glycol diacrylate of 3:0.5-1.5, dripping the polyethylene glycol diacrylate into a container by using a dripping device, heating to 80-100 ℃ after dripping, continuously stirring for 0.5-2h to fully react, and cooling to normal temperature after the reaction is completed to obtain an amine curing agent B;
step three, a preparation method of a curing agent component comprises the following steps: sequentially adding an amine curing agent A, an amine curing agent B and an accelerator into a reactor according to parts by weight, and stirring and mixing at room temperature for 0.5-2 hours to obtain a curing agent component;
and step four, a preparation method of a resin component: and sequentially adding the epoxy resin and the diluent into a reactor according to parts by weight, and stirring and mixing at 60-80 ℃ for 0.5-2 hours to obtain the resin component.
2. The modified amine paste epoxy resin composition of claim 1, wherein the epoxy resin has a viscosity of 8000-15000 cps at 25 ℃, an epoxy equivalent of 176-195 g/eq, and a hydrolyzable chlorine of 500ppm or less.
3. A modified amine hand lay-up epoxy resin composition according to claim 1, wherein the epoxy resin is one or more of E-51, E-54, E-55, 828, 6010, 128R, 128S, 826, 127, 126, 186.
4. A modified amine hand lay-up epoxy resin composition according to claim 1, wherein the diluent is one or more of C 12-C14 alkyl glycidyl ether, 1, 4-butanediol diglycidyl ether, butyl glycidyl ether, phenyl glycidyl ether, benzyl glycidyl ether, cresol glycidyl ether, p-tert-butylphenol glycidyl Gan Jiyou ether, neopentyl glycol diglycidyl ether, 1, 6-hexanediol diglycidyl ether, 1, 2-cyclohexanediol diglycidyl ether.
5. Ext> theext> modifiedext> amineext> handext> layext> -ext> upext> epoxyext> resinext> compositionext> ofext> claimext> 1ext>,ext> whereinext> theext> acceleratorext> isext> oneext> orext> moreext> ofext> DMPext> -ext> 30ext>,ext> HDGext> -ext> aext> /ext> bext>,ext> triethylamineext>,ext> triethanolamineext>,ext> BMDAext>,ext> DBUext>,ext> DMPext> -ext> 10ext>,ext> pyridineext>,ext> bisphenolext> aext>,ext> benzylext> alcoholext>.ext>
6. The modified amine hand lay-up epoxy resin composition of claim 1, wherein in the first step, the polyetheramine curing agent is one or more of D200, D230, and D400; the glycidyl ether with epoxy group is one or more of bisphenol A epoxy resin, bisphenol F epoxy resin, 1, 4-butanediol diglycidyl ether and 1, 6-hexanediol diglycidyl ether.
7. The modified amine hand lay-up epoxy resin composition of claim 6, wherein in the second step, the alicyclic amine curing agent is one or more of 1, 2-cyclohexanediamine, 1, 3-cyclohexanediamine, methylcyclopentyenediamine, isophoronediamine, and m-xylylenediamine.
8. The modified amine hand lay-up epoxy resin composition of claim 7, wherein the amine curing agent a has the following structure:
；
the structure of the amine curing agent B is as follows:
。
9. Use of the modified amine hand lay-up epoxy resin composition of claim 1 in wind power blades.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311374620.7A CN117264176B (en) | 2023-10-23 | 2023-10-23 | Hyperbranched modified amine hand paste epoxy resin composition and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311374620.7A CN117264176B (en) | 2023-10-23 | 2023-10-23 | Hyperbranched modified amine hand paste epoxy resin composition and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117264176A CN117264176A (en) | 2023-12-22 |
| CN117264176B true CN117264176B (en) | 2024-06-21 |
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