CN115286769B - Modified epoxy resin-based cementing material for color ultrathin composite layer and preparation method thereof - Google Patents
Modified epoxy resin-based cementing material for color ultrathin composite layer and preparation method thereof Download PDFInfo
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- 239000003822 epoxy resin Substances 0.000 title claims abstract description 63
- 229920000647 polyepoxide Polymers 0.000 title claims abstract description 63
- 239000000463 material Substances 0.000 title claims abstract description 39
- 239000002131 composite material Substances 0.000 title claims abstract description 22
- 238000002360 preparation method Methods 0.000 title abstract description 14
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 43
- 150000001412 amines Chemical class 0.000 claims abstract description 21
- 230000032683 aging Effects 0.000 claims abstract description 19
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910021485 fumed silica Inorganic materials 0.000 claims abstract description 15
- 239000011159 matrix material Substances 0.000 claims abstract description 15
- 239000002904 solvent Substances 0.000 claims abstract description 14
- 239000004721 Polyphenylene oxide Substances 0.000 claims abstract description 12
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229920000570 polyether Polymers 0.000 claims abstract description 12
- YSUQLAYJZDEMOT-UHFFFAOYSA-N 2-(butoxymethyl)oxirane Chemical compound CCCCOCC1CO1 YSUQLAYJZDEMOT-UHFFFAOYSA-N 0.000 claims abstract description 11
- HPILSDOMLLYBQF-UHFFFAOYSA-N 2-[1-(oxiran-2-ylmethoxy)butoxymethyl]oxirane Chemical compound C1OC1COC(CCC)OCC1CO1 HPILSDOMLLYBQF-UHFFFAOYSA-N 0.000 claims abstract description 11
- -1 phenolic amine Chemical class 0.000 claims abstract description 11
- 239000012745 toughening agent Substances 0.000 claims abstract description 9
- 239000007822 coupling agent Substances 0.000 claims abstract description 8
- 239000004841 bisphenol A epoxy resin Substances 0.000 claims abstract description 6
- 239000002994 raw material Substances 0.000 claims abstract description 4
- 238000003756 stirring Methods 0.000 claims description 36
- 229920000459 Nitrile rubber Polymers 0.000 claims description 9
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 8
- 239000004359 castor oil Substances 0.000 claims description 8
- 235000019438 castor oil Nutrition 0.000 claims description 8
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 6
- 239000004568 cement Substances 0.000 claims description 5
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 3
- 239000011230 binding agent Substances 0.000 claims 1
- 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 abstract description 16
- 239000000126 substance Substances 0.000 abstract description 12
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- 150000001875 compounds Chemical class 0.000 abstract description 8
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- 238000005260 corrosion Methods 0.000 abstract description 5
- 238000004132 cross linking Methods 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 20
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- 241000221785 Erysiphales Species 0.000 description 3
- 206010040844 Skin exfoliation Diseases 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
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- 238000009472 formulation Methods 0.000 description 3
- 239000003112 inhibitor Substances 0.000 description 3
- 229920005749 polyurethane resin Polymers 0.000 description 3
- 238000009864 tensile test Methods 0.000 description 3
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- 239000004593 Epoxy Substances 0.000 description 2
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
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- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
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- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Classifications
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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
- C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
-
- 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
-
- 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
- C08G59/56—Amines together with other curing agents
-
- 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
- C08G59/62—Alcohols or phenols
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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
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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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
- C08L2205/05—Polymer mixtures characterised by other features containing polymer components which can react with one another
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
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- 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 provides a modified epoxy resin matrix cementing material for a color ultrathin composite layer and a preparation method thereof, wherein the modified epoxy resin matrix cementing material comprises the following raw materials in parts by weight: bisphenol a epoxy resin: 40-55 parts of phenolic epoxy resin: 15-30 parts of butyl glycidyl ether: 5-15 parts of butanediol diglycidyl ether: 10-25 parts of fumed silica: 0.4 to 1.0 part of ultraviolet aging resistant agent: 0.2 to 0.8 part of phenolic amine curing agent: 10-25 parts of fatty amine curing agent: 5-15 parts of polyether amine curing agent: 5-15 parts of active toughening agent: 2-10 parts of an accelerator: 2-8 parts of coupling agent: 0.3 to 1.5 portions of solubilizer: 0.3 to 0.8 part; the modified epoxy resin-based compound cementing material for the color ultrathin wearing layer provided by the invention can not only exert the advantages of solubility of bisphenol A type epoxy resin in various solvents, good compatibility, heat resistance and corrosion resistance, but also exert the advantages of high activity of phenolic epoxy resin F-51, high crosslinking density of a cured product, compact structure, mechanical strength and chemical resistance.
Description
Technical Field
The invention belongs to the technical field of composite materials, and particularly relates to a modified epoxy resin matrix cementing material for a color ultrathin composite layer and a preparation method thereof.
Background
The color ultrathin wearing layer is widely applied to occasions such as expressways, municipal roads, squares, parks and the like due to the advantages of excellent anti-skid performance, strong traffic warning capability and the like, and particularly applied to expressway tunnel inlets and outlets, long and large longitudinal slopes, sharp bend sections and the like, so that the safety is remarkably improved. The durability of the color ultrathin wearing layer is a technical pain point, and the color ultrathin wearing layer is used for half a year to one year, so that diseases such as peeling, particle falling, fading and the like are easy to generate, the application of the technology is limited by the defects of insufficient durability and various diseases, and one important reason for the durability and the generation of various diseases is uneven quality of the color cementing material.
The cementing material used for the color ultra-thin wearing layer mainly comprises three categories of acrylic resins (MMA), polyurethane resins and epoxy resins. The thermoplastic MMA is formed into a film by means of a solvent or a dispersion medium, so that the film is high in weather resistance and adhesive force, convenient to construct, high in solvent requirement in the film forming process, easy to crack at low temperature, high in Wen Yifa viscosity, slow in drying and poor in solvent resistance; the thermosetting MMA has higher solid content, is insoluble in organic solvent after film formation, and has excellent weather resistance and toughness. The polyurethane resin cementing material reaction process belongs to polyaddition curing reaction, side reaction is not generated in the process, the defect of an adhesive layer is not easy to generate, the mechanical strength is high, the oxidation stability is strong, but the polyurethane resin cementing material is sensitive to water, the adhesive layer is easy to generate bubbles, and the contact with water needs to be particularly avoided in the construction process; the epoxy resin cementing material is mainly bi-component glue of epoxy resin and curing agent, the epoxy resin cementing material has strong adhesive force to cement, metal and asphalt, has excellent corrosion resistance and mechanical property, and the characteristics meet the application in the road field, but have poor weather resistance, and the ageing phenomenon possibly occurs after long-term irradiation of sunlight, so that the epoxy resin cementing material has the advantages of required construction environment, long curing time and high requirements on maintenance and traffic maintenance, and the defects weaken the use effect of the epoxy resin cementing material. The cementing materials used for the color ultra-thin wearing layer are three main types of materials, and have respective advantages and disadvantages and application ranges.
The invention relates to a modified epoxy resin-based compound cementing material for a color ultrathin wearing layer and a preparation method thereof, which aim to break through the limitations of three types of color cementing materials used for the traditional color ultrathin wearing layer, improve indexes such as drawing strength, tensile strength and the like of the cementing material, and solve various diseases such as insufficient durability, peeling, particle falling and the like of the color ultrathin wearing layer.
Disclosure of Invention
The invention aims to provide a modified epoxy resin-based compound cementing material for a color ultrathin wearing layer and a preparation method thereof, and aims to solve the problems of various diseases such as insufficient durability, peeling, particle falling and the like of the color ultrathin wearing layer in the prior art.
In order to achieve the technical purpose and the technical effect, the invention is realized by the following technical scheme:
the invention provides a modified epoxy resin-based compound cementing material for a color ultrathin wearing layer, which is prepared from the following raw materials in parts by weight: bisphenol a epoxy resin: 40-55 parts of phenolic epoxy resin: 15-30 parts of butyl glycidyl ether: 5-15 parts of butanediol diglycidyl ether: 10-25 parts of fumed silica: 0.4 to 1.0 part of ultraviolet aging resistant agent: 0.5 to 0.6 part of phenolic amine curing agent: 10-25 parts of fatty amine curing agent: 5-15 parts of polyether amine curing agent: 5-15 parts of active toughening agent: 2-10 parts of an accelerator: 2-8 parts of coupling agent: 0.3 to 1.5 portions of solubilizer: 0.3 to 0.8 part.
As a further improvement of the invention, the coupling agent is silane coupling agent KH-550.
As a further improvement of the invention, the solubilizer is hydrogenated castor oil CO-40.
As a further improvement of the invention, the active toughening agent is reactive liquid nitrile rubber.
The preparation method of the modified epoxy resin-based cementing material comprises the following steps:
step 1: placing bisphenol A epoxy resin and phenolic epoxy resin into a first stirring tank, then adding the matched butyl glycidyl ether and butanediol diglycidyl ether, stirring for 1-2 minutes at 2000rpm, then adding corresponding fumed silica and anti-ultraviolet ageing agent, and stirring for 3-5 minutes at 2000 rpm;
step 2: placing the phenolic amine curing agent, the aliphatic amine curing agent and the polyether amine curing agent into a second stirring tank, uniformly adding the corresponding active toughening agent at 2500rpm, and stirring for 2-3 minutes;
step 3: weighing the accelerator according to the specified weight parts, putting the accelerator into a third stirring tank, uniformly adding the corresponding coupling agent and solubilizer, and stirring for 1-2 minutes at the rotation speed of 2500 rpm;
step 4: and pouring the mixture in the second stirring tank and the third stirring tank into the first stirring tank, stirring for 3-5 minutes at the rotation speed of 2500rpm, and fully and uniformly stirring to obtain the modified epoxy resin matrix cementing material.
The invention has the beneficial effects that:
1. the modified epoxy resin-based compound cementing material for the color ultrathin wearing layer provided by the invention adopts bisphenol A type epoxy resin E-51 to compound phenolic epoxy resin F-51, so that the advantages of high compatibility, high heat resistance and high corrosion resistance of bisphenol A type epoxy resin can be brought into play, and the advantages of high activity, high crosslinking density, compact structure, mechanical strength and chemical resistance of the phenolic epoxy resin F-51 can be brought into play.
2. The phenolic amine curing agent T31 adopted by the invention has good miscibility with epoxy resin, strong wettability, high curing speed, convenient construction, about amine value 700, colorless and transparent, odorless, low viscosity and convenient use, and the fatty amine curing agent 593 has a linear long chain structure, and the cured product after reaction with the epoxy resin has good elasticity and toughness; and polyether amine curing agent D230, as a difunctional primary amine, can reduce viscosity, reduce solvent consumption and heat release temperature, and the product has the advantages of colorless transparency, high gloss, toughness and thermal shock resistance, and in order to increase the curing speed of polyether amine curing agent D230, the curing time is shortened by adding an accelerator.
3. The silane coupling agent KH-550 adopted by the invention can be dissolved in the epoxy resin through chemical reaction, and contains active groups for coupling inorganic and organic materials, so that strong bonding to a base material is provided, the bonding strength is increased, and the ageing resistance and the mechanical property can be enhanced; the adopted butyl glycidyl ether and butanediol diglycidyl ether can be adapted to bisphenol A type epoxy resin E-51, thereby being beneficial to improving the elongation, reducing the reaction viscosity and improving the mechanical property.
4. The invention adopts the fumed silica as oxygen to act with the epoxy resin cyclic molecule, so that the cured product is more compact, thereby improving the strength of the cured product; in addition, the fumed silica has the characteristics of small particle size, large specific surface area and high surface activity, and plays roles in controlling rheology and preventing sagging; part of the fumed silica particles are distributed in the gaps of the polymer chains, and have high fluidity, so that the toughness and the ductility of the resin matrix composite material are improved; the reflection characteristic of the fumed silica to ultraviolet light can reduce the degradation effect of the ultraviolet light on the cured product, thereby achieving the purpose of delaying aging.
5. The hydrogenated castor oil CO-40 is used as the solubilizer, so that the use of an organic solvent can be reduced, the components are promoted to be effectively dispersed, and the condensate is promoted; the reactive liquid nitrile rubber is adopted as a toughening agent, epoxy functional groups at two ends of molecules are opened in the curing process, nitrile rubber molecules can be naturally connected with the opened epoxy functional groups in the epoxy resin, the connecting condition is completely matched with the curing condition of the epoxy resin, the epoxy resin has the corrosion resistance, low expansion (low contraction), environmental protection and metal substrate matching performance which are completely matched with the epoxy resin, the epoxy resin does not corrode metal, is not corroded by metal, and the integral corrosion resistance is improved.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail by means of specific examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention. Bisphenol A type epoxy resin E-51 is purchased from a deer-free environmental protection technology (Guangdong) company, phenolic epoxy resin F-51 is purchased from Shandong O Li Long chemical company, butyl glycidyl ether is purchased from Shandong Qian chemical company, butanediol diglycidyl ether is purchased from Guangzhou Feng chemical company, fumed silica is purchased from Jinan Xin Yi bang chemical technology, anti-ultraviolet ageing agent UV-329 is purchased from Heng you Feng chemical company, phenolic amine curing agent T31 is purchased from Guangzhou Cheng Yi Chen, fatty amine curing agent 593 is purchased from Guangzhou Gaohui chemical company, polyether amine curing agent D230 is purchased from Guangzhou commercial enhancement chemical company, reactive liquid nitrile rubber is purchased from Guangdong New energy technology, accelerator CJ-80 is purchased from He cation polymerization New material, silane coupling agent KH-550 is purchased from Shandon Guangdong chemical company, hydrogenated castor oil CO-40 is purchased from Guangdong chemical company, and other raw materials are obtained from Guangdong chemical industry, all of which are commercially available from Guangdong.
Example 1
40 parts of bisphenol A type epoxy resin E-51, 15 parts of phenolic epoxy resin F-51, 5 parts of butyl glycidyl ether, 15 parts of butanediol diglycidyl ether, 0.4 part of fumed silica and 0.5 part of ultraviolet aging inhibitor UV-329, 10 parts of phenolic amine curing agent T31, 5 parts of fatty amine curing agent 593, 15 parts of polyether amine curing agent D230, 5 parts of reactive liquid nitrile rubber, 8 parts of accelerator CJ-80, 0.3 part of silane coupling agent KH-550 and 0.3 part of hydrogenated castor oil CO-40 are fully and uniformly mixed according to a preparation method to obtain the modified epoxy resin-based compound cementing material, a proper amount of samples are taken for drawing test, tensile test and curing time test, and test results are shown in Table 1.
The modified epoxy resin matrix cementing material prepared in the example 1 is used for a color ultrathin composite layer, the surface of the prepared composite material is smooth and defect-free (effect), the curing time is 4 hours, the tensile strength is 20.5MPa, the drawing strength is 3MPa, the elongation is 7.5%, and the elongation after ultraviolet aging is 4.5%.
Comparative example 1
The formulation, preparation procedure and example 1 of this comparative example were substantially the same except that no accelerator Tocpoly CJ-80, silane coupling agent KH-550, hydrogenated castor oil CO-40 was used, and the subsequent test procedures and conditions were exactly the same as in example 1, and the cement test results are shown in Table 1. The modified epoxy resin matrix cementing material prepared in the comparative example 1 is used for a color ultrathin composite layer, the surface of the prepared composite material is provided with powdery mildew, the application period is short, the composite material is unstable, the curing time is prolonged, and the tensile strength, the drawing strength and the elongation after ultraviolet aging are obviously attenuated.
Example 2
55 parts of bisphenol A type epoxy resin E-51, 20 parts of phenolic epoxy resin F-51, 15 parts of butyl glycidyl ether, 10 parts of butanediol diglycidyl ether, 0.5 part of fumed silica and 0.2 part of ultraviolet aging inhibitor UV-329, 25 parts of phenolic amine curing agent T31, 7 parts of fatty amine curing agent 593, 5 parts of polyether amine curing agent D230, 2 parts of reactive liquid nitrile rubber, 2 parts of accelerator CJ-80, 0.8 part of silane coupling agent KH-550 and 0.5 part of hydrogenated castor oil CO-40 are fully and uniformly mixed according to a preparation method to obtain the modified epoxy resin-based compound cementing material, a proper amount of samples are taken for drawing test, tensile test and curing time test, and test results are shown in Table 1.
The modified epoxy resin matrix cementing material prepared in the example 2 is used for a color ultrathin composite layer, the surface of the prepared composite material is smooth and defect-free (effect), the curing time is 5 hours, the tensile strength is 18MPa, the drawing strength is 2.4MPa, the elongation is 6.8%, and the elongation after ultraviolet aging is 3.5%.
Comparative example 2
The formulation, preparation procedure and example 2 of this comparative example were essentially the same except that no accelerator Tocpoly CJ-80, reactive liquid nitrile rubber was used, the subsequent test procedure and conditions were exactly the same as in example 2, and the cement test results are shown in Table 1. The modified epoxy resin matrix cementing material prepared in comparative example 2 is used for a colored ultrathin composite layer, and the prepared composite material has powdery mildew on the surface, short applicable period, instability, prolonged curing speed and obvious attenuation of tensile strength and elongation.
Example 3
50 parts of bisphenol A type epoxy resin E-51, 30 parts of phenolic epoxy resin F-51, 10 parts of butyl glycidyl ether, 25 parts of butanediol diglycidyl ether, 1.0 part of fumed silica and 0.8 part of ultraviolet aging inhibitor UV-329, 20 parts of phenolic amine curing agent T31, 15 parts of fatty amine curing agent 593, 5 parts of polyether amine curing agent D230, 10 parts of reactive liquid nitrile rubber, 3 parts of accelerator CJ-80, 1.5 parts of silane coupling agent KH-550 and 0.8 part of hydrogenated castor oil CO-40 are fully and uniformly mixed according to a preparation method to obtain the modified epoxy resin-based compound cementing material, a proper amount of samples are taken for drawing test, tensile test and curing time test, and test results are shown in Table 1.
The modified epoxy resin matrix cementing material prepared in example 3 is used for a color ultrathin composite layer, the surface of the prepared composite material is smooth and defect-free (effect), the curing time is 5.5 hours, the tensile strength is 22MPa, the drawing strength is 3.2MPa, the elongation is 7.0%, and the elongation after ultraviolet aging is 4.8%.
Comparative example 3
The formulation, preparation procedure and example 3 of this comparative example were essentially the same except that fumed silica and the anti-UV aging agent UV-329 were not used, and the subsequent test procedure and conditions were exactly the same as in example 3, and the cement test results are shown in table 1. The modified epoxy resin matrix cementing material prepared in the comparative example 3 is used for a color ultrathin composite layer, the surface of the prepared composite material is provided with powdery mildew, the application period is short, the composite material is unstable, and the elongation percentage attenuation after ultraviolet aging is obvious.
Table 1 experimental results of examples and comparative examples
The preparation method of the modified epoxy resin matrix cementing material comprises the following steps:
step 1: placing bisphenol A epoxy resin and phenolic epoxy resin into a first stirring tank, then adding the matched butyl glycidyl ether and butanediol diglycidyl ether, stirring for 1-2 minutes at 2000rpm, then adding corresponding fumed silica and anti-ultraviolet ageing agent, and stirring for 3-5 minutes at 2000 rpm;
step 2: placing the phenolic amine curing agent, the aliphatic amine curing agent and the polyether amine curing agent into a second stirring tank, uniformly adding the corresponding active toughening agent at 2500rpm, and stirring for 2-3 minutes;
step 3: weighing the accelerator according to the specified weight parts, putting the accelerator into a third stirring tank, uniformly adding the corresponding coupling agent and solubilizer, and stirring for 1-2 minutes at the rotation speed of 2500 rpm;
step 4: and pouring the mixture in the second stirring tank and the third stirring tank into the first stirring tank, stirring for 3-5 minutes at the rotation speed of 2500rpm, and fully and uniformly stirring to obtain the modified epoxy resin matrix cementing material.
Reference in the specification to "some embodiments," "one embodiment," or "an embodiment," etc., means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, appearances of the phrases "in some embodiments," "in one embodiment," or "in an embodiment" in various places throughout this specification are not necessarily referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
Having thus described several aspects of at least one embodiment of this invention, it is to be appreciated various alterations, modifications, and improvements will readily occur to those skilled in the art. Such alterations, modifications, and improvements are intended to be within the spirit and scope of the invention.
Claims (3)
1. The modified epoxy resin-based cementing material for the color ultrathin composite layer is characterized by comprising the following raw materials in parts by weight:
bisphenol a epoxy resin: 40-55 parts of phenolic epoxy resin: 15-30 parts of butyl glycidyl ether: 5-15 parts of butanediol diglycidyl ether: 10-25 parts of fumed silica: 0.4 to 1.0 part of ultraviolet aging resistant agent: 0.2 to 0.8 part of phenolic amine curing agent: 10-25 parts of fatty amine curing agent: 5-15 parts of polyether amine curing agent: 5-15 parts of active toughening agent: 2-10 parts of an accelerator: 2-8 parts of coupling agent: 0.3 to 1.5 portions of solubilizer: 0.3 to 0.8 part;
the active toughening agent is reactive liquid nitrile rubber;
the solubilizer is hydrogenated castor oil CO-40.
2. The modified epoxy resin matrix binder for a color ultra-thin composite layer according to claim 1, wherein the coupling agent is a silane coupling agent KH-550.
3. The method for preparing a modified epoxy resin-based cement according to any one of claims 1 to 2, comprising the steps of:
step 1: placing bisphenol A epoxy resin and phenolic epoxy resin into a first stirring tank, then adding the matched butyl glycidyl ether and butanediol diglycidyl ether, stirring for 1-2 minutes at 2000rpm, then adding corresponding fumed silica and anti-ultraviolet ageing agent, and stirring for 3-5 minutes at 2000 rpm;
step 2: placing the phenolic amine curing agent, the aliphatic amine curing agent and the polyether amine curing agent into a second stirring tank, uniformly adding the corresponding active toughening agent at 2500rpm, and stirring for 2-3 minutes;
step 3: weighing the accelerator according to the specified weight parts, putting the accelerator into a third stirring tank, uniformly adding the corresponding coupling agent and solubilizer, and stirring for 1-2 minutes at the rotation speed of 2500 rpm;
step 4: and pouring the mixture in the second stirring tank and the third stirring tank into the first stirring tank, stirring for 3-5 minutes at the rotation speed of 2500rpm, and fully and uniformly stirring to obtain the modified epoxy resin matrix cementing material.
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| CN111705651A (en) * | 2020-06-10 | 2020-09-25 | 南京道润交通科技有限公司 | Antiskid wearing layer for steel bridge deck pavement and maintenance method |
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| CN111705651A (en) * | 2020-06-10 | 2020-09-25 | 南京道润交通科技有限公司 | Antiskid wearing layer for steel bridge deck pavement and maintenance method |
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