CN116265555A - High-temperature-resistant epoxy color sand joint beautifying agent and preparation method and application thereof - Google Patents
High-temperature-resistant epoxy color sand joint beautifying agent and preparation method and application thereof Download PDFInfo
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- CN116265555A CN116265555A CN202310136311.XA CN202310136311A CN116265555A CN 116265555 A CN116265555 A CN 116265555A CN 202310136311 A CN202310136311 A CN 202310136311A CN 116265555 A CN116265555 A CN 116265555A
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- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 74
- 239000004593 Epoxy Substances 0.000 title claims abstract description 53
- 239000004576 sand Substances 0.000 title claims abstract description 48
- 238000002360 preparation method Methods 0.000 title abstract description 9
- 239000003822 epoxy resin Substances 0.000 claims abstract description 67
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 67
- 239000000945 filler Substances 0.000 claims abstract description 55
- 239000000049 pigment Substances 0.000 claims abstract description 14
- 239000013530 defoamer Substances 0.000 claims abstract description 13
- 239000002994 raw material Substances 0.000 claims abstract description 9
- 239000000843 powder Substances 0.000 claims description 52
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 31
- 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 claims description 30
- 239000011521 glass Substances 0.000 claims description 29
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 27
- 239000007788 liquid Substances 0.000 claims description 16
- 238000003756 stirring Methods 0.000 claims description 14
- 239000012745 toughening agent Substances 0.000 claims description 10
- 239000000919 ceramic Substances 0.000 claims description 9
- 238000011049 filling Methods 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 239000004952 Polyamide Substances 0.000 claims description 5
- QLBRROYTTDFLDX-UHFFFAOYSA-N [3-(aminomethyl)cyclohexyl]methanamine Chemical compound NCC1CCCC(CN)C1 QLBRROYTTDFLDX-UHFFFAOYSA-N 0.000 claims description 5
- 229920002647 polyamide Polymers 0.000 claims description 5
- PXKLMJQFEQBVLD-UHFFFAOYSA-N bisphenol F Chemical compound C1=CC(O)=CC=C1CC1=CC=C(O)C=C1 PXKLMJQFEQBVLD-UHFFFAOYSA-N 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 4
- GNTDGMZSJNCJKK-UHFFFAOYSA-N divanadium pentaoxide Chemical compound O=[V](=O)O[V](=O)=O GNTDGMZSJNCJKK-UHFFFAOYSA-N 0.000 claims description 4
- 238000005303 weighing Methods 0.000 claims description 4
- 239000004841 bisphenol A epoxy resin Substances 0.000 claims description 3
- IMUDHTPIFIBORV-UHFFFAOYSA-N aminoethylpiperazine Chemical compound NCCN1CCNCC1 IMUDHTPIFIBORV-UHFFFAOYSA-N 0.000 claims description 2
- QBLDFAIABQKINO-UHFFFAOYSA-N barium borate Chemical compound [Ba+2].[O-]B=O.[O-]B=O QBLDFAIABQKINO-UHFFFAOYSA-N 0.000 claims description 2
- KEIQPMUPONZJJH-UHFFFAOYSA-N dicyclohexylmethanediamine Chemical compound C1CCCCC1C(N)(N)C1CCCCC1 KEIQPMUPONZJJH-UHFFFAOYSA-N 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 239000011499 joint compound Substances 0.000 claims 2
- 238000005336 cracking Methods 0.000 abstract description 7
- 239000000853 adhesive Substances 0.000 abstract description 2
- 230000001070 adhesive effect Effects 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract 1
- 239000006087 Silane Coupling Agent Substances 0.000 description 11
- 229920001971 elastomer Polymers 0.000 description 9
- 229920001021 polysulfide Polymers 0.000 description 9
- 239000005077 polysulfide Substances 0.000 description 9
- 150000008117 polysulfides Polymers 0.000 description 9
- 239000005060 rubber Substances 0.000 description 9
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical class [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 8
- NKSJNEHGWDZZQF-UHFFFAOYSA-N ethenyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)C=C NKSJNEHGWDZZQF-UHFFFAOYSA-N 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- 238000012360 testing method Methods 0.000 description 8
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 description 7
- 244000226021 Anacardium occidentale Species 0.000 description 7
- 239000002313 adhesive film Substances 0.000 description 7
- 235000020226 cashew nut Nutrition 0.000 description 7
- 239000010466 nut oil Substances 0.000 description 7
- 238000002844 melting Methods 0.000 description 6
- 239000002245 particle Substances 0.000 description 6
- GEQHKFFSPGPGLN-UHFFFAOYSA-N cyclohexane-1,3-diamine Chemical compound NC1CCCC(N)C1 GEQHKFFSPGPGLN-UHFFFAOYSA-N 0.000 description 5
- 238000005034 decoration Methods 0.000 description 4
- -1 polyoxypropylene ethylene oxide Polymers 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- WVDDGKGOMKODPV-UHFFFAOYSA-N Benzyl alcohol Chemical compound OCC1=CC=CC=C1 WVDDGKGOMKODPV-UHFFFAOYSA-N 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- RBNPOMFGQQGHHO-UHFFFAOYSA-N glyceric acid Chemical compound OCC(O)C(O)=O RBNPOMFGQQGHHO-UHFFFAOYSA-N 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 235000019492 Cashew oil Nutrition 0.000 description 2
- 235000003332 Ilex aquifolium Nutrition 0.000 description 2
- 235000002296 Ilex sandwicensis Nutrition 0.000 description 2
- 235000002294 Ilex volkensiana Nutrition 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 239000010467 cashew oil Substances 0.000 description 2
- 229940059459 cashew oil Drugs 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000004383 yellowing Methods 0.000 description 2
- 239000004606 Fillers/Extenders Substances 0.000 description 1
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- 229910001308 Zinc ferrite Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000002318 adhesion promoter Substances 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000019445 benzyl alcohol Nutrition 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- GPLRAVKSCUXZTP-UHFFFAOYSA-N diglycerol Chemical compound OCC(O)COCC(O)CO GPLRAVKSCUXZTP-UHFFFAOYSA-N 0.000 description 1
- 229940008099 dimethicone Drugs 0.000 description 1
- 235000013870 dimethyl polysiloxane Nutrition 0.000 description 1
- 239000004205 dimethyl polysiloxane Substances 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 1
- 229920001601 polyetherimide Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002516 radical scavenger Substances 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 239000013008 thixotropic agent Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 1
- WGEATSXPYVGFCC-UHFFFAOYSA-N zinc ferrite Chemical compound O=[Zn].O=[Fe]O[Fe]=O WGEATSXPYVGFCC-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J163/00—Adhesives based on epoxy resins; Adhesives based on derivatives of epoxy resins
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0893—Zinc
-
- 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
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Epoxy Resins (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to the technical field of joint beautifying agents, in particular to the field of IPC C04B26, and further relates to a high-temperature-resistant epoxy color sand joint beautifying agent, a preparation method and application thereof. The adhesive comprises the following raw materials in parts by weight: 30-80 parts of epoxy resin, 5-30 parts of high temperature resistant filler, 1-3 parts of flexibilizer, 1-3 parts of defoamer, 25-40 parts of curing agent and 3-5 parts of pigment filler. The high-temperature-resistant epoxy color sand joint beautifying agent prepared by the invention has excellent high-temperature resistance, wear resistance, scratch resistance, difficult cracking, environmental protection and safety.
Description
Technical Field
The invention relates to the technical field of joint beautifying agents, in particular to the field of IPC C04B26, and further relates to a high-temperature-resistant epoxy color sand joint beautifying agent, a preparation method and application thereof.
Background
In order to prevent the ceramic tile from expanding with heat and shrinking with cold in house decoration, gaps are often reserved when the ceramic tile is paved and attached, and along with the increasing requirements on the quality of the joint filling materials, the joint filling materials are from the earliest white cement to polymer modified cement-based joint filling agents and ceramic mud to joint beautifying agents with excellent performances. At present, the joint beautifying agent has the advantages of convenient construction, flexibility, toughness, heat resistance, freezing resistance, smoothness, stain resistance, skid resistance, wear resistance and the like, and more new projects and old houses are renovated to select the joint beautifying agent as a joint filling decorative material.
The joint beautifying agent mainly uses polymers such as epoxy resin, polyurethane and the like as base materials, various pigments, fillers and auxiliary agents are added to form joint filling materials of paste, the epoxy joint beautifying agent on the market is mostly of two components at present, but the operation of the two-component joint beautifying agent is complex, the two components are mixed by a mixing glue nozzle and then used, and when in construction, the two sides of the ceramic tile are required to be pasted with the joint beautifying paper, so that the ceramic tile is easy to be polluted, the ceramic tile is stuck to hands, and clothes are difficult to clean; the development of one-component joint beautifying agents is therefore highly necessary.
Chinese patent CN 111777930A discloses a single component yellowing-resistant seam-beautifying agent and its preparation method, comprising the following components: 30-50% of silane modified resin, 10-30% of plasticizer, 30-50% of extender filler, 1-10% of pigment, 0.1-1% of ultraviolet absorber, 1-5% of thixotropic agent, 0.5-1.5% of adhesion promoter A, 0.5-1.5% of moisture scavenger and 0.05-0.2% of catalyst. The technical scheme can solve the problems that the seam beautifying agent on the market is two-component, the mixing is uneven, and if the ratio of the two components is inaccurate, the two components are not cured, or are in a state such as plasticine after curing. However, the technical proposal mainly improves the yellowing resistance of the seam-beautifying agent, and does not relate to the high temperature resistance and whether cracking phenomenon easily occurs.
Disclosure of Invention
The invention aims to provide a high-temperature-resistant epoxy color sand joint beautifying agent, a preparation method and application thereof, and aims to solve the problems that the existing bi-component joint beautifying agent is complex in construction, the high-temperature resistance and wear resistance of the epoxy color sand joint beautifying agent are improved, cracking is difficult to occur, and the epoxy color sand joint beautifying agent is safe and environment-friendly, so that the epoxy color sand joint beautifying agent cannot influence the beauty and harm the health of a human body in house decoration with floor heating.
The invention provides a high-temperature-resistant epoxy colored sand joint beautifying agent, which comprises the following raw materials in parts by weight: 30-80 parts of epoxy resin, 5-30 parts of high temperature resistant filler, 1-3 parts of flexibilizer, 1-3 parts of defoamer, 25-40 parts of curing agent and 3-5 parts of pigment filler.
In some preferred embodiments, the epoxy resin is selected from one or more combinations of bisphenol a type epoxy resin, bisphenol F type epoxy resin, phenolic epoxy resin.
Preferably, the epoxy resin is a combination of bisphenol a type epoxy resin and phenolic epoxy resin.
Preferably, the weight ratio of the bisphenol A type epoxy resin to the phenolic epoxy resin is (10-20): (1-5).
In some preferred embodiments, the bisphenol a type epoxy resin is a liquid bisphenol a type epoxy resin.
Preferably, the epoxy equivalent of the liquid bisphenol A type epoxy resin is 165-190 g/eq.
In some preferred embodiments, the phenolic epoxy resin is a liquid phenolic epoxy resin.
Preferably, the viscosity of the liquid phenolic epoxy resin is 10000-20000 cps.
In some preferred embodiments, the high temperature resistant filler is selected from one or more of zinc powder, sericite powder, glass powder, barium metaborate, vanadium pentoxide, ceramic powder.
Preferably, the high temperature resistant filler is selected from the group consisting of zinc powder, sericite powder, and glass powder.
Preferably, the weight ratio of the zinc powder to the sericite powder to the glass powder is (5-10): (1-5): (5-10).
Preferably, the zinc powder is a flaky zinc powder.
Preferably, the particle size of the flaky zinc powder is 3-5 mu m.
Preferably, the sericite powder is 10-20 mu m.
Preferably, the glass frit is a low melting point glass frit.
Preferably, the particle size of the low melting point glass powder is 1000 to 2000 mesh.
Preferably, the low melting point glass frit has a thermal expansion coefficient of 65×10 -7 ～90×10 -7 。
In some preferred embodiments, the refractory filler is modified by:
(1) Adding the high-temperature-resistant filler into a reactor, uniformly stirring, then adding the silane coupling agent, and continuously stirring for 1-2 h at 70-100 ℃;
(2) And drying the modified high-temperature-resistant filler.
In some preferred embodiments, the weight ratio of the refractory filler to the silane coupling agent is (50-100): 1.
In some preferred embodiments, the silane coupling agent is a combination of vinyltrimethoxysilane and 3-aminopropyl triethoxysilane.
Preferably, the weight ratio of the vinyl trimethoxy silane to the 3-aminopropyl triethoxy silane is (1-2): 1.
the inventor discovers that the epoxy color sand joint beautifying agent prepared by taking bisphenol A type epoxy resin and phenolic epoxy resin as main resins and adding high-temperature-resistant filler has good high-temperature resistance, but the high-temperature-resistant filler has poor compatibility with the bisphenol A type epoxy resin and the phenolic epoxy resin and is easy to generate an agglomeration phenomenon, so that a large number of defects and gaps are generated after the epoxy color sand joint beautifying agent is solidified, and the joint beautifying agent is easy to crack in the use process. According to the invention, the high-temperature-resistant filler is modified, so that the high temperature resistance of the epoxy color sand joint beautifying agent is improved, and the cracking phenomenon of the epoxy color sand joint beautifying agent can be avoided, thereby prolonging the service life of the epoxy color sand in house decoration with floor heating. The inventors hypothesize that: according to the system, vinyl trimethoxy silane and 3-aminopropyl triethoxy silane are selected as silane coupling agents to carry out modification treatment on the high-temperature-resistant filler, the modified high-temperature-resistant filler can be subjected to chemical reaction with hydroxyl groups on the surface of the high-temperature-resistant filler, so that the modified high-temperature-resistant filler is coated on the surface of the high-temperature-resistant filler, bisphenol A epoxy resin and phenolic epoxy resin are bonded through covalent bonds, the bonding force is increased, the dispersibility is improved, the internal stress of an adhesive film after the epoxy color sand joint beautifying agent is cured is reduced, and therefore cracking is prevented. In addition, the inventor finds that when the high-temperature-resistant filler is selected from zinc powder, sericite powder and glass powder, particularly when the zinc powder is flaky zinc powder and the glass powder is low-melting-point glass powder, the wear resistance and scratch resistance can be obviously improved. The inventors hypothesize that: the system of the invention has flaky zinc powder, flaky sericite powder and spherical glass powder which are mixed with each other, wherein the zinc powder and the sericite powder can be in an overlapped arrangement structure in the resin, thereby obviously improving the mechanical strength of the adhesive film after the epoxy color sand joint beautifying agent is solidified; the low-melting-point glass powder can reduce the shrinkage force of the cured epoxy color sand joint beautifying agent and further reduce the internal stress of the adhesive film of the cured epoxy color sand joint beautifying agent.
In some preferred embodiments, the toughening agent is selected from one or more combinations of polyetherimides, cashew oil modified phenolic resins, carboxylated nitrile rubbers, polysulfide rubbers.
Preferably, the toughening agent is a combination of cashew oil modified phenolic resin and polysulfide rubber.
Preferably, the weight ratio of the cashew nut oil modified phenolic resin to the polysulfide rubber is (1-3): (1-3).
In some preferred embodiments, the defoamer is selected from one or more combinations of polyoxypropylene ethylene oxide glyceryl ether or dimethicone.
Preferably, the defoamer is polyoxypropylene ethylene oxide glycerol ether.
In some preferred embodiments, the curing agent is selected from one or more combinations of 1, 3-cyclohexanedimethylamine, diaminodicyclohexylmethane, N-aminoethylpiperazine, polyetheramine, polyamide.
Preferably, the curing agent is a combination of 1, 3-cyclohexanedimethylamine and polyetheramine.
Preferably, the weight ratio of the 1, 3-cyclohexanediamine to the polyamide is (8-12): (1-3).
In some preferred embodiments, the pigment and filler is selected from one or more of chromite black, zinc ferrite yellow, gold powder, titanium dioxide, pearlescent powder.
The invention provides a preparation method of a high-temperature-resistant epoxy color sand joint beautifying agent, which comprises the following steps:
(1) Weighing epoxy resin, high-temperature-resistant filler, toughening agent, defoamer, curing agent and pigment filler according to parts by weight;
(2) Mixing and stirring the raw materials in the step (1) for 1-3 h at a stirring speed of 900-2000 r/min, and discharging to obtain the product.
The third aspect of the invention provides application of the high-temperature-resistant epoxy color sand joint beautifying agent for filling indoor tiles.
The beneficial effects are that:
1. the system selects bisphenol A type epoxy resin and phenolic epoxy resin as main components, and the high-temperature-resistant filler is modified to bond the high-temperature-resistant filler with the bisphenol A type epoxy resin and the phenolic epoxy resin through covalent bonds, so that the bonding force is increased, the dispersibility is improved, the internal stress of the adhesive film after the epoxy color sand joint beautifying agent is cured is reduced, the high-temperature resistance is improved, and meanwhile, the cracking can be prevented.
2. When the high-temperature-resistant filler is selected from zinc powder, sericite powder and glass powder, flaky zinc powder, scaly sericite powder and spherical glass powder are mixed with each other in the system, wherein the zinc powder and the sericite powder can be in a parallel and overlapped arrangement structure in the resin, so that the mechanical strength of the adhesive film after the epoxy color sand joint beautifying agent is cured is obviously improved; the low-melting-point glass powder can reduce the shrinkage force of the cured epoxy color sand joint beautifying agent and further reduce the internal stress of the adhesive film of the cured epoxy color sand joint beautifying agent.
3. The system of the invention does not contain free low molecular weight curing agent, benzyl alcohol and harmful substances during high temperature use, and is environment-friendly and safe.
Detailed Description
Example 1
The embodiment 1 provides a high-temperature-resistant epoxy color sand joint beautifying agent, which comprises the following raw materials in parts by weight: 60 parts of epoxy resin, 25 parts of high-temperature-resistant filler, 2 parts of toughening agent, 2 parts of defoamer, 30 parts of curing agent and 4 parts of pigment filler.
The epoxy resin is a combination of bisphenol a type epoxy resin and phenolic epoxy resin.
The weight ratio of the bisphenol A type epoxy resin to the phenolic epoxy resin is 15:4.
the bisphenol A type epoxy resin is liquid bisphenol A type epoxy resin.
The epoxy equivalent of the liquid bisphenol A type epoxy resin is 169+/-4 g/eq, and the type is as follows: EPIKOTE 862.
The phenolic epoxy resin is liquid phenolic epoxy resin.
The viscosity of the liquid phenolic epoxy resin is 13000+/-2000 cps, and the model is: DEN431.
The high temperature resistant filler is selected from the group consisting of zinc powder, sericite powder and glass powder.
The weight ratio of the zinc powder to the sericite powder to the glass powder is 8:3:8.
the zinc powder is flaky zinc powder.
The particle size of the flaky zinc powder is 1.5+/-0.5 mu m, and the flaky zinc powder is purchased from Hunan Jin New Material science and technology Co., ltd., model: D300.
preferably, the sericite powder is 13+/-1 mu m, and is purchased from Chuzhou pagoda sericite mining limited liability company, model: WJ-6.
The glass powder is low-melting-point glass powder.
The particle size of the low-melting glass powder is 1250 meshes.
The thermal expansion coefficient of the low-melting glass powder is 72.5+/-7.5 multiplied by 10 -7 Purchased from Chuangguo new materials Co., ltd., model: BL-39.
The high-temperature-resistant filler is modified, and the modification treatment steps are as follows:
(1) Adding the high-temperature-resistant filler into a reactor, uniformly stirring, then adding the silane coupling agent, and continuously stirring for 1.5h at 80 ℃;
(2) And drying the modified high-temperature-resistant filler.
The weight ratio of the high-temperature-resistant filler to the silane coupling agent is 60:1.
the silane coupling agent is a combination of vinyl trimethoxy silane and 3-aminopropyl triethoxy silane.
The weight ratio of the vinyl trimethoxy silane to the 3-aminopropyl triethoxy silane is 1.5:1.
the toughening agent is a combination of cashew nut oil modified phenolic resin and polysulfide rubber, and the cashew nut oil modified phenolic resin has the following model: holly science SP6700; the polysulfide rubber is of the following type: mitsubishi JLY-121, japan.
The weight ratio of the cashew nut oil modified phenolic resin to the polysulfide rubber is 1:1.
the defoamer is polyoxypropylene ethylene oxide glycerol ether (CAS number: 9003-11-6).
The curing agent is a combination of 1, 3-cyclohexanediamine (CAS number 2579-20-6) and polyetheramine; the polyetheramines were purchased from tin-free alcian technologies, inc., model: MA-2200.
The weight ratio of the 1, 3-cyclohexanediamine to the polyamide is 9:2.
the pigment and filler is pearl powder, which is purchased from Jiangsu Han Chuang technology Co.
A preparation method of a high-temperature-resistant epoxy colored sand joint beautifying agent comprises the following steps:
(1) Weighing epoxy resin, high-temperature-resistant filler, toughening agent, defoamer, curing agent and pigment filler according to parts by weight;
(2) Mixing and stirring the raw materials in the step (1) for 2 hours at a stirring speed of 1500r/min, and discharging to obtain the product.
Example 2
The embodiment 2 provides a high-temperature-resistant epoxy color sand joint beautifying agent, which comprises the following raw materials in parts by weight: 70 parts of epoxy resin, 30 parts of high-temperature-resistant filler, 2.5 parts of toughening agent, 3 parts of defoamer, 35 parts of curing agent and 4 parts of pigment filler.
The epoxy resin is a combination of bisphenol a type epoxy resin and phenolic epoxy resin.
The weight ratio of the bisphenol A type epoxy resin to the phenolic epoxy resin is 15:4.
the bisphenol A type epoxy resin is liquid bisphenol A type epoxy resin.
The epoxy equivalent of the liquid bisphenol A type epoxy resin is 169+/-4 g/eq, and the type is as follows: EPIKOTE 862.
The phenolic epoxy resin is liquid phenolic epoxy resin.
The viscosity of the liquid phenolic epoxy resin is 13000+/-2000 cps, and the model is: DEN431.
The high temperature resistant filler is selected from the group consisting of zinc powder, sericite powder and glass powder.
The weight ratio of the zinc powder to the sericite powder to the glass powder is 8:3:8.
the zinc powder is flaky zinc powder.
The particle size of the flaky zinc powder is 1.5+/-0.5 mu m, and the flaky zinc powder is purchased from Hunan Jin New Material science and technology Co., ltd., model: D300.
preferably, the sericite powder is 13+/-1 mu m, and is purchased from Chuzhou pagoda sericite mining limited liability company, model: WJ-6.
The glass powder is low-melting-point glass powder.
The particle size of the low-melting glass powder is 1250 meshes.
The low-melting-point glass powder has a thermal expansion coefficient of 72.5+/-7.5X10-7 and is purchased from Chuangguo new materials Co., ltd., model: BL-39.
The high-temperature-resistant filler is modified, and the modification treatment steps are as follows:
(1) Adding the high-temperature-resistant filler into a reactor, uniformly stirring, then adding the silane coupling agent, and continuously stirring for 1.5h at 80 ℃;
(2) And drying the modified high-temperature-resistant filler.
The weight ratio of the high-temperature-resistant filler to the silane coupling agent is 60:1.
the silane coupling agent is a combination of vinyl trimethoxy silane and 3-aminopropyl triethoxy silane.
The weight ratio of the vinyl trimethoxy silane to the 3-aminopropyl triethoxy silane is 1.5:1.
the toughening agent is a combination of cashew nut oil modified phenolic resin and polysulfide rubber, and the cashew nut oil modified phenolic resin has the following model: holly science SP6700; the polysulfide rubber is of the following type: mitsubishi JLY-121, japan.
The weight ratio of the cashew nut oil modified phenolic resin to the polysulfide rubber is 1:1.
the defoamer is polyoxypropylene ethylene oxide glycerol ether (CAS number: 9003-11-6).
The curing agent is a combination of 1, 3-cyclohexanediamine (CAS number 2579-20-6) and polyetheramine; the polyetheramines were purchased from tin-free alcian technologies, inc., model: MA-2200.
The weight ratio of the 1, 3-cyclohexanediamine to the polyamide is 9:2.
the pigment and filler is pearl powder, which is purchased from Jiangsu Han Chuang technology Co.
A preparation method of a high-temperature-resistant epoxy colored sand joint beautifying agent comprises the following steps:
(1) Weighing epoxy resin, high-temperature-resistant filler, toughening agent, defoamer, curing agent and pigment filler according to parts by weight;
(2) Mixing and stirring the raw materials in the step (1) for 2 hours at a stirring speed of 1500r/min, and discharging to obtain the product.
Example 3
Example 3 provides a high-temperature-resistant epoxy color sand joint beautifying agent, and the concrete implementation mode is the same as example 1, wherein the high-temperature-resistant filler is selected from the combination of zinc powder and sericite powder; the weight ratio of the zinc powder to the sericite powder is 8:3.
example 4
Example 4 provides a high temperature resistant epoxy color sand joint beautifying agent, and the specific implementation mode is the same as example 1, except that zinc powder is replaced by ceramic powder.
Example 5
Example 5 provides a high temperature resistant epoxy color sand joint beautifying agent, and the specific implementation mode is the same as example 1, wherein the silane coupling agent is vinyl trimethoxy silane.
Example 6
Example 6 provides a high temperature resistant epoxy colored sand joint beautifying agent, and the specific implementation mode is the same as example 1, except that the high temperature resistant filler is not modified.
Performance test:
1. VOC content testing: the high-temperature-resistant epoxy color sand joint beautifying agent prepared in the examples 1-6 is subjected to VOC test according to GB/T18583-2008 'harmful substance limit in interior decoration material adhesive', and if VOC is less than or equal to 120mg/kg, the VOC is more than 120mg/kg and the VOC is not more than the limit.
2. High temperature resistance test: according to the test standard of GB/T2567-2008, preparing 2 parts of samples, namely a sample No. 1 and a sample No. 2, of the high-temperature-resistant epoxy color sand joint beautifying agent prepared in examples 1-6, and testing the tensile strength p0 of the sample No. 1; sample No. 2 was left at 230 ℃ for 48 hours, the tensile strength p1 was measured, and the tensile strength decrease rate = (p 0-p 1) ×100% was calculated, the smaller the tensile strength decrease rate was, the better the high temperature resistance was.
3. Dynamic cracking resistance: the high temperature resistant epoxy color sand joint beautifying agents prepared in examples 1 to 6 were tested according to JG/T157-2004 putty for building exterior wall.
4. Abrasion resistance test: the high temperature resistant epoxy color sand joint beautifying agents prepared in examples 1-6 were tested according to GB/T1689-1998.
5. Scratch resistance performance test: the high-temperature-resistant epoxy color sand joint beautifying agents prepared in examples 1-6 are tested according to GB/T9279-2007, the thickness of the adhesive film is 1mm, and the test load is 10Kg.
Test results:
TABLE 1
Claims (10)
1. The high-temperature-resistant epoxy color sand joint beautifying agent is characterized by comprising the following raw materials in parts by weight: 30-80 parts of epoxy resin, 5-30 parts of high temperature resistant filler, 1-3 parts of flexibilizer, 1-3 parts of defoamer, 25-40 parts of curing agent and 3-5 parts of pigment filler.
2. The high temperature resistant epoxy color sand joint beautifying agent according to claim 1, wherein the epoxy resin is selected from one or more of bisphenol a type epoxy resin, bisphenol F type epoxy resin and phenolic epoxy resin.
3. The high temperature resistant epoxy colored sand joint beautifying agent according to claim 2, wherein the epoxy resin is a combination of bisphenol a type epoxy resin and phenolic epoxy resin.
4. The high temperature resistant epoxy colored sand joint beautifying agent according to claim 3, wherein the bisphenol a epoxy resin is liquid bisphenol a epoxy resin; the epoxy equivalent of the liquid bisphenol A type epoxy resin is 165-190 g/eq.
5. A high temperature resistant epoxy colored sand joint compound as set forth in claim 3 wherein the phenolic epoxy resin is a liquid phenolic epoxy resin; the viscosity of the liquid phenolic epoxy resin is 10000-20000 cps.
6. The high-temperature-resistant epoxy color sand joint beautifying agent according to claim 1, wherein the high-temperature-resistant filler is one or a combination of more selected from zinc powder, sericite powder, glass powder, barium metaborate, vanadium pentoxide and ceramic powder.
7. The high-temperature-resistant epoxy color sand joint beautifying agent according to claim 6, which is characterized in that the weight ratio of zinc powder, sericite powder and glass powder is (5-10): (1-5): (5-10).
8. The high temperature resistant epoxy colored sand joint beautifying agent according to claim 1, wherein the curing agent is selected from one or more of 1, 3-cyclohexanedimethylamine, diaminodicyclohexylmethane, N-aminoethylpiperazine, polyetheramine and polyamide.
9. A method for preparing the high-temperature-resistant epoxy color sand joint beautifying agent according to any one of claims 1 to 8, which is characterized by comprising the following steps:
(1) Weighing epoxy resin, high-temperature-resistant filler, toughening agent, defoamer, curing agent and pigment filler according to parts by weight;
(2) Mixing and stirring the raw materials in the step (1) for 1-3 h at a stirring speed of 900-2000 r/min, and discharging to obtain the product.
10. Use of a high temperature resistant epoxy colour sand joint compound according to any one of claims 1 to 8 for filling indoor tiles.
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