CN114276742A - Novel high-adhesion, high-thixotropy and environment-friendly silane modified polymer waterproof paint and preparation method thereof - Google Patents
Novel high-adhesion, high-thixotropy and environment-friendly silane modified polymer waterproof paint and preparation method thereof Download PDFInfo
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- CN114276742A CN114276742A CN202111602617.7A CN202111602617A CN114276742A CN 114276742 A CN114276742 A CN 114276742A CN 202111602617 A CN202111602617 A CN 202111602617A CN 114276742 A CN114276742 A CN 114276742A
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- thixotropy
- silane
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- 239000003707 silyl modified polymer Substances 0.000 title claims abstract description 34
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 239000003973 paint Substances 0.000 title abstract description 8
- 238000000576 coating method Methods 0.000 claims abstract description 55
- 239000011347 resin Substances 0.000 claims abstract description 50
- 229920005989 resin Polymers 0.000 claims abstract description 50
- 239000011248 coating agent Substances 0.000 claims abstract description 49
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 39
- 239000010703 silicon Substances 0.000 claims abstract description 39
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 39
- 239000000463 material Substances 0.000 claims abstract description 28
- 239000000853 adhesive Substances 0.000 claims abstract description 20
- 230000001070 adhesive effect Effects 0.000 claims abstract description 20
- 239000000945 filler Substances 0.000 claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000013008 thixotropic agent Substances 0.000 claims abstract description 19
- 239000011256 inorganic filler Substances 0.000 claims abstract description 17
- 229910003475 inorganic filler Inorganic materials 0.000 claims abstract description 17
- 239000004014 plasticizer Substances 0.000 claims abstract description 17
- 239000003054 catalyst Substances 0.000 claims abstract description 16
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 16
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910000077 silane Inorganic materials 0.000 claims abstract description 12
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 35
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 17
- ZVFDTKUVRCTHQE-UHFFFAOYSA-N Diisodecyl phthalate Chemical compound CC(C)CCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC(C)C ZVFDTKUVRCTHQE-UHFFFAOYSA-N 0.000 claims description 8
- -1 cyclohexane-1, 2-dicarboxylic acid isononyl ester Chemical class 0.000 claims description 8
- BPSIOYPQMFLKFR-UHFFFAOYSA-N trimethoxy-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CO[Si](OC)(OC)CCCOCC1CO1 BPSIOYPQMFLKFR-UHFFFAOYSA-N 0.000 claims description 8
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 claims description 6
- SJECZPVISLOESU-UHFFFAOYSA-N 3-trimethoxysilylpropan-1-amine Chemical group CO[Si](OC)(OC)CCCN SJECZPVISLOESU-UHFFFAOYSA-N 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 239000004805 Cyclohexane-1,2-dicarboxylic acid Substances 0.000 claims description 5
- 239000004952 Polyamide Substances 0.000 claims description 5
- 239000004359 castor oil Substances 0.000 claims description 5
- 235000019438 castor oil Nutrition 0.000 claims description 5
- 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 5
- 229920002647 polyamide Polymers 0.000 claims description 5
- HBGGXOJOCNVPFY-UHFFFAOYSA-N diisononyl phthalate Chemical compound CC(C)CCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCC(C)C HBGGXOJOCNVPFY-UHFFFAOYSA-N 0.000 claims description 4
- 239000005543 nano-size silicon particle Substances 0.000 claims description 4
- JXUKBNICSRJFAP-UHFFFAOYSA-N triethoxy-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CCO[Si](OCC)(OCC)CCCOCC1CO1 JXUKBNICSRJFAP-UHFFFAOYSA-N 0.000 claims description 4
- DQZNLOXENNXVAD-UHFFFAOYSA-N trimethoxy-[2-(7-oxabicyclo[4.1.0]heptan-4-yl)ethyl]silane Chemical compound C1C(CC[Si](OC)(OC)OC)CCC2OC21 DQZNLOXENNXVAD-UHFFFAOYSA-N 0.000 claims description 4
- ZYAASQNKCWTPKI-UHFFFAOYSA-N 3-[dimethoxy(methyl)silyl]propan-1-amine Chemical compound CO[Si](C)(OC)CCCN ZYAASQNKCWTPKI-UHFFFAOYSA-N 0.000 claims description 3
- 230000002209 hydrophobic effect Effects 0.000 claims description 3
- LTOKKZDSYQQAHL-UHFFFAOYSA-N trimethoxy-[4-(oxiran-2-yl)butyl]silane Chemical compound CO[Si](OC)(OC)CCCCC1CO1 LTOKKZDSYQQAHL-UHFFFAOYSA-N 0.000 claims description 3
- RLPSARLYTKXVSE-UHFFFAOYSA-N 1-(1,3-thiazol-5-yl)ethanamine Chemical compound CC(N)C1=CN=CS1 RLPSARLYTKXVSE-UHFFFAOYSA-N 0.000 claims description 2
- HXLAEGYMDGUSBD-UHFFFAOYSA-N 3-[diethoxy(methyl)silyl]propan-1-amine Chemical compound CCO[Si](C)(OCC)CCCN HXLAEGYMDGUSBD-UHFFFAOYSA-N 0.000 claims description 2
- 239000005995 Aluminium silicate Substances 0.000 claims description 2
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 2
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims description 2
- 235000012211 aluminium silicate Nutrition 0.000 claims description 2
- 229910021485 fumed silica Inorganic materials 0.000 claims description 2
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 2
- YLBPOJLDZXHVRR-UHFFFAOYSA-N n'-[3-[diethoxy(methyl)silyl]propyl]ethane-1,2-diamine Chemical compound CCO[Si](C)(OCC)CCCNCCN YLBPOJLDZXHVRR-UHFFFAOYSA-N 0.000 claims description 2
- 229920000570 polyether Polymers 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- UDUKMRHNZZLJRB-UHFFFAOYSA-N triethoxy-[2-(7-oxabicyclo[4.1.0]heptan-4-yl)ethyl]silane Chemical compound C1C(CC[Si](OCC)(OCC)OCC)CCC2OC21 UDUKMRHNZZLJRB-UHFFFAOYSA-N 0.000 claims description 2
- 239000000454 talc Substances 0.000 claims 1
- 229910052623 talc Inorganic materials 0.000 claims 1
- 229920000642 polymer Polymers 0.000 abstract description 12
- 238000004078 waterproofing Methods 0.000 abstract description 12
- 230000007613 environmental effect Effects 0.000 abstract description 11
- 239000010426 asphalt Substances 0.000 abstract description 5
- 239000002131 composite material Substances 0.000 abstract description 4
- 238000012360 testing method Methods 0.000 description 11
- 239000012855 volatile organic compound Substances 0.000 description 10
- 230000000052 comparative effect Effects 0.000 description 5
- 239000004567 concrete Substances 0.000 description 5
- LIKFHECYJZWXFJ-UHFFFAOYSA-N dimethyldichlorosilane Chemical compound C[Si](C)(Cl)Cl LIKFHECYJZWXFJ-UHFFFAOYSA-N 0.000 description 5
- FFUAGWLWBBFQJT-UHFFFAOYSA-N hexamethyldisilazane Chemical compound C[Si](C)(C)N[Si](C)(C)C FFUAGWLWBBFQJT-UHFFFAOYSA-N 0.000 description 5
- ISKQADXMHQSTHK-UHFFFAOYSA-N [4-(aminomethyl)phenyl]methanamine Chemical compound NCC1=CC=C(CN)C=C1 ISKQADXMHQSTHK-UHFFFAOYSA-N 0.000 description 4
- 230000002195 synergetic effect Effects 0.000 description 4
- KSBAEPSJVUENNK-UHFFFAOYSA-L tin(ii) 2-ethylhexanoate Chemical compound [Sn+2].CCCCC(CC)C([O-])=O.CCCCC(CC)C([O-])=O KSBAEPSJVUENNK-UHFFFAOYSA-L 0.000 description 4
- 239000000440 bentonite Substances 0.000 description 3
- 229910000278 bentonite Inorganic materials 0.000 description 3
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 3
- HORIEOQXBKUKGQ-UHFFFAOYSA-N bis(7-methyloctyl) cyclohexane-1,2-dicarboxylate Chemical compound CC(C)CCCCCCOC(=O)C1CCCCC1C(=O)OCCCCCCC(C)C HORIEOQXBKUKGQ-UHFFFAOYSA-N 0.000 description 3
- NVJMGQMXNBBZIU-UHFFFAOYSA-N dibutyltin;1-dodecylsulfanyldodecane Chemical compound CCCC[Sn]CCCC.CCCCCCCCCCCCSCCCCCCCCCCCC NVJMGQMXNBBZIU-UHFFFAOYSA-N 0.000 description 3
- 239000004806 diisononylester Substances 0.000 description 3
- 239000004814 polyurethane Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 description 2
- 239000004566 building material Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000012975 dibutyltin dilaurate Substances 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 239000011414 polymer cement Substances 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 238000007665 sagging Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000005465 channeling Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- SKWZHINXPDOQDF-UHFFFAOYSA-N disilanyl(ethenyl)silane Chemical group [SiH3][SiH2][SiH2]C=C SKWZHINXPDOQDF-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- HMMGMWAXVFQUOA-UHFFFAOYSA-N octamethylcyclotetrasiloxane Chemical compound C[Si]1(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O1 HMMGMWAXVFQUOA-UHFFFAOYSA-N 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 125000003808 silyl group Chemical group [H][Si]([H])([H])[*] 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 125000003944 tolyl group Chemical group 0.000 description 1
- 238000001291 vacuum drying Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Paints Or Removers (AREA)
Abstract
The invention discloses a novel silane modified polymer waterproof coating with high adhesion, high thixotropy and environmental protection and a preparation method thereof. The paint comprises the following components in parts by weight: 20-50 parts of silane modified resin, 10-20 parts of silicon-based resin, 5-15 parts of nanoscale silicon-based filler, 10-30 parts of plasticizer, 50-150 parts of inorganic filler, 3-10 parts of thixotropic agent, 1-8 parts of water removing agent, 1-5 parts of adhesive and 0.1-1.0 part of catalyst. The novel silane modified polymer waterproof coating with high adhesion, high thixotropy and environmental protection, which is prepared by the invention, can be used as a waterproof layer independently, and can also be used as a composite waterproof layer together with asphalt coiled materials and high polymer coiled materials; the waterproof paint can be applied to plane waterproofing of roofs, floors and the like, can also be applied to vertical face waterproofing of basement side walls, tunnels and the like, and can be widely applied to various occasions.
Description
Technical Field
The invention belongs to the technical field of waterproof coatings, and particularly relates to a novel high-adhesion, high-thixotropy and environment-friendly silane modified polymer waterproof coating as well as a preparation method and application thereof.
Background
With the scientific and technological progress and the economic development of the society, people pay more and more attention to the problems of quality of life and environmental protection, advocate the environmental protection ideas of low-carbon economy and green building, and green building materials are also favored by the market, and the market demand increases year by year. The waterproof coating is a common building material, and currently, polyurethane waterproof coatings, polymer cement waterproof coatings and polymer emulsion waterproof coatings are common. The polyurethane waterproof coating has excellent mechanical properties, but has poor environmental protection property, solvent residues exist in a common system, the VOC content is high, free TDI exists, and bubbles are easily generated during curing to influence the performance of a coating film; although the polymer cement waterproof coating and the polymer emulsion waterproof coating are environment-friendly and pollution-free, the adhesion and the water resistance are poor. The common waterproof coating is limited in the application field, large-area sagging occurs during the construction of vertical surfaces such as tunnels and basement side walls, the thickness of a coating film is not uniform, the waterproof quality is affected, although anti-sagging products exist, the thickness of one coating film is lower, multiple coating films are needed, and the construction efficiency is low; when the polymer coiled material is constructed, the problems of water channeling, water leakage and the like are caused due to the problems of non-compact welding or paving with a base surface and the like. Meanwhile, with the rapid development of novel waterproof products and engineering application technologies thereof, silane modified waterproof coatings begin to appear in the waterproof field, but the overall comprehensive performance is relatively poor, the problems of high VOC, poor adhesion, poor thixotropy, even counterfeit products and the like exist, the application scene is limited, and the requirements of multiple occasions cannot be met.
Therefore, in order to solve the above problems, it is necessary to develop a novel silane modified polymer waterproof coating with high adhesion, high thixotropy and environmental protection.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a novel silane modified polymer waterproof coating with high adhesion, high thixotropy and environmental protection and a preparation method thereof, which can be used as a waterproof layer alone, and can also be used as a composite waterproof layer together with an asphalt coiled material and a high polymer coiled material; the waterproof coating can be applied to plane waterproofing of roofs, floors and the like, and can also be applied to vertical face waterproofing of basement side walls, tunnels and the like. The silane modified polymer waterproof coating prepared by the invention is convenient to construct, environment-friendly, low in VOC (volatile organic compounds) and high in adhesion, the adhesion strength with concrete is more than or equal to 2.5MPa, the peeling strength with a high polymer sheet is more than or equal to 3.5N/mm, the coating has high thixotropy, and the coating can reach more than 2mm in one step, so that the silane modified polymer waterproof coating can be widely applied to various occasions.
In order to achieve the purpose, the technical scheme adopted by the invention for solving the technical problems is as follows:
a novel high-adhesion, high-thixotropy and environment-friendly silane modified polymer waterproof coating comprises the following components in parts by weight:
20-50 parts of silane modified resin, 10-20 parts of silicon-based resin, 5-15 parts of nanoscale silicon-based filler, 10-30 parts of plasticizer, 50-150 parts of inorganic filler, 3-10 parts of thixotropic agent, 1-8 parts of water removing agent, 1-5 parts of adhesive and 0.1-1.0 part of catalyst.
Further, the paint comprises the following components in parts by weight:
40 parts of silane modified resin, 15 parts of silicon-based resin, 15 parts of nano silicon-based filler, 25 parts of plasticizer, 20 parts of inorganic filler, 5 parts of thixotropic agent, 5 parts of water removing agent, 5 parts of adhesive and 0.5 part of catalyst.
The invention introduces the silicon-based resin, forms synergistic reaction with the adhesive, has improved the adhesiveness to the substrate, the bond strength to the concrete is greater than or equal to 2.5MPa, the peel strength with the high-molecular sheet is greater than or equal to 3.5N/mm, can be regarded as the water barrier alone, can cooperate with pitch coiled material, high-molecular coiled material to use; the nano-silicon-based filler is introduced to form a synergistic effect with a corresponding thixotropic agent, so that the thixotropy of the material is improved, and the material can be coated for more than 2mm at one time, and can be applied to plane waterproofing of roofs, floors and the like and facade waterproofing of basements, tunnels and the like.
Further, the silane-modified resin is a hydrolyzable silane-terminated polyether material having a number average molecular weight of 8000-.
Further, the number average molecular weight was 8000-.
Further, the end group of the silane modified resin is a hydrolysable silyl group which is a trimethoxysilyl group or a methyldimethoxysilyl group, and the structure is as follows:
further, the silicon-based resin is at least one of MQ resin, MDQ resin and MTQ resin which take methyl or methyl phenyl siloxane chain links as main chains.
Further, the nano-scale silicon-based filler is hydrophobic gas-phase-method silicon dioxide, and the specific surface area of the nano-scale silicon-based filler is 200-400 m2/g。
Further, the hydrophobic type fumed silica is treated with one or more of dimethyldichlorosilane (DDS), Hexamethyldisilazane (HMDS), and octamethylcyclotetrasiloxane (D4).
Further, the plasticizer is at least one of cyclohexane-1, 2-dicarboxylic acid isononyl ester, diisodecyl phthalate, diisononyl phthalate and didecyl phthalate.
Further, the inorganic filler is at least one of heavy calcium carbonate, light calcium carbonate, nano active calcium carbonate, kaolin, silicon micropowder, talcum powder and aluminum hydroxide.
Further, the thixotropic agent is at least one of polyamide wax, hydrogenated castor oil and organic bentonite.
Further, the water removal agent is vinyl trisilane.
Further, the adhesive is gamma-aminopropyltrimethoxysilane, gamma-aminopropyltriethoxysilane, N-beta- (aminoethyl) -gamma-aminopropyltrimethoxysilane, N-beta- (aminoethyl) -gamma-aminopropyltriethoxysilane, N-beta- (aminoethyl) -gamma-aminopropylmethyldimethoxysilane, N-beta- (aminoethyl) -gamma-aminopropylmethyldiethoxysilane, gamma-aminopropylmethyldimethoxysilane, gamma-aminopropylmethyldiethoxysilane, gamma-glycidoxypropyltrimethoxysilane, gamma-glycidoxypropyltriethoxysilane, beta- (3, 4-epoxycyclohexyl) -ethyltrimethoxysilane, gamma-glycidoxypropyltriethoxysilane, gamma-glycidoxypropyltrimethoxysilane, gamma-glycidyloxyethyltrimethoxysilane, or mixtures thereof, At least one of beta- (3, 4-epoxycyclohexyl) -ethyltriethoxysilane, 3- (2, 3-epoxypropyl) propyltrimethoxysilane and gamma- (2, 3-epoxypropoxy) propyltrimethoxysilane.
Further, the catalyst is one or more of dibutyltin dilaurate, dibutyltin diacetate, stannous octoate and dibutyltin didodecylthio.
The preparation method of the novel high-adhesion, high-thixotropy and environment-friendly silane modified polymer waterproof paint is characterized by comprising the following steps of:
according to the formula, silane modified resin, silicon-based resin, nanoscale silicon-based filler, plasticizer, inorganic filler and thixotropic agent are dried in vacuum at 110-125 ℃ for 2.5h, then the temperature is reduced to be not more than 50 ℃ in a closed manner, then a water removing agent is added and stirred for 15-30 min, then an adhesive is added and stirred for 20-30 min, finally a catalyst is added and stirred for 10-20 min, and then defoaming treatment is carried out.
The novel silane modified polymer waterproof coating with high adhesion, high thixotropy and environmental protection, which is prepared by the invention, can be used as a waterproof layer independently, and can also be used as a composite waterproof layer together with asphalt coiled materials and high polymer coiled materials; the waterproof paint can be applied to plane waterproofing of roofs, floors and the like, can also be applied to vertical face waterproofing of basement side walls, tunnels and the like, and can be widely applied to various occasions.
The silane modified polymer waterproof coating prepared by the invention is convenient to construct, environment-friendly, low in VOC (volatile organic compounds) and high in adhesion, the adhesion strength with concrete is more than or equal to 2.5MPa, and the peeling strength with a high polymer sheet is more than or equal to 3.5N/mm.
The invention has the beneficial effects that:
1. the invention provides a novel silane modified polymer waterproof coating with high adhesion, high thixotropy and environmental protection, which introduces silicon-based resin to form synergistic action with an adhesive, improves the adhesion to a base material, has the adhesive strength to concrete more than or equal to 2.5MPa and the peeling strength to a high polymer sheet more than or equal to 3.5N/mm, can be used as a waterproof layer independently, and can also be matched with an asphalt coiled material and a high polymer coiled material for use.
2. The novel silane modified polymer waterproof coating with high adhesion, high thixotropy and environmental protection is provided, the nanoscale silicon-based filler is introduced to form a synergistic effect with a corresponding thixotropic agent, the thixotropy of the material is improved, and the coating film can reach more than 2mm once, so that the coating film can be applied to plane waterproofing of roofs, floors and the like, and can also be applied to facade waterproofing of basement side walls, tunnels and the like.
3. The high-adhesion, high-thixotropy, environment-friendly and novel silane modified polymer waterproof coating disclosed by the invention is simple in production process, convenient to construct, environment-friendly, pollution-free, low in VOC (volatile organic compounds), free of peculiar smell and suitable for indoor and outdoor use, and can be directly used after being unsealed.
Detailed Description
The following description of the embodiments of the present invention is provided to facilitate the understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and it will be apparent to those skilled in the art that various changes may be made without departing from the spirit and scope of the invention as defined and defined in the appended claims, and all matters produced by the invention using the inventive concept are protected.
Example 1
A novel high-adhesion, high-thixotropy and environment-friendly silane modified polymer waterproof coating comprises the following components in parts by weight:
silane-modified resin: molecular structure
The number average molecular weight is 8000, 50 portions;
silicon-based resin, MDQ resin, 20 parts;
the nano-scale silicon-based filler has a specific surface area of 200-300m25 portions of DDS pretreatment;
plasticizer, cyclohexane-1, 2-dicarboxylic acid isononyl ester (DINCH), 30 parts;
150 parts of inorganic filler, heavy calcium carbonate and light calcium carbonate;
10 parts of thixotropic agent, hydrogenated castor oil;
5 parts of a water removal agent;
adhesive, gamma-aminopropyl trimethoxy silane, gamma-aminopropyl triethoxy silane, N-beta- (aminoethyl) -gamma-aminopropyl trimethoxy silane, 5 portions
Catalyst, stannous octoate, dibutyl tin dilauryl sulfide, 1 part;
the preparation method of the novel silane modified polymer waterproof coating with high adhesion, high thixotropy and environmental protection comprises the following steps:
weighing raw materials according to the measurement, carrying out vacuum drying on silane modified resin, silicon-based resin, nanoscale silicon-based filler, plasticizer, inorganic filler and thixotropic agent for 2.5h at 110-125 ℃ in a dynamic mixer, hermetically introducing cooling water to cool to below 50 ℃, adding a water removal agent to stir for 15min, adding an adhesive to stir for 30min, finally adding a catalyst to stir for 10min, carrying out vacuum defoaming for 15min, discharging, sealing and storing.
Example 2
A novel high-adhesion, high-thixotropy and environment-friendly silane modified polymer waterproof coating comprises the following components in parts by weight:
silane-modified resin: the molecular structure is as follows:
number average molecular weight is 10000, 30 portions;
silicon-based resin, MQ resin, 20 parts;
the nano-scale silicon-based filler has a specific surface area of 200-300 m2G, DDS pretreatment, 5 portions
20 parts of plasticizer, diisodecyl phthalate (DIDP);
50 parts of inorganic filler, light calcium carbonate and silicon micropowder;
3 parts of thixotropic agent, organic bentonite;
5 parts of a water removal agent;
adhesive, gamma-aminopropyl trimethoxy silane, gamma-aminopropyl triethoxy silane, N-beta- (aminoethyl) -gamma-aminopropyl trimethoxy silane, 5 portions
Catalyst, dibutyl tin diacetate, 0.5 part;
the preparation method of this example is the same as example 1.
Example 3
A novel high-adhesion, high-thixotropy and environment-friendly silane modified polymer waterproof coating comprises the following components in parts by weight:
the silane modified resin has a molecular structure as follows:
the number average molecular weight is 8000-15000, 35 parts;
silicon-based resin, MTQ resin, 20 parts;
the nano-scale silicon-based filler has a specific surface area of 200-300 m215 portions of pretreatment of D4 and g
20 parts of plasticizer, diisodecyl phthalate (DIDP);
50 parts of inorganic filler, light calcium carbonate and silicon micropowder;
3 parts of thixotropic agent, polyamide wax and organic bentonite;
5 parts of a water removal agent;
5 parts of adhesive, N-beta- (aminoethyl) -gamma-aminopropyl methyl trimethoxy silane, gamma-glycidoxypropyl trimethoxy silane and beta- (3, 4-epoxycyclohexyl) -ethyl trimethoxy silane;
catalyst, dibutyl tin diacetate, 0.5 part;
the preparation method of this example is the same as example 1.
Example 4
A novel high-adhesion, high-thixotropy and environment-friendly silane modified polymer waterproof coating comprises the following components in parts by weight:
silane-modified resin: molecular structure
The number average molecular weight is 8000, 25 portions;
15 parts of silicon-based resin, MTQ resin;
the nano-scale silicon-based filler has a specific surface area of 200-400 m215 portions of/g HMDS pretreatment
25 parts of a plasticizer, diisononyl phthalate (DINP);
50 parts of inorganic filler, nano active calcium carbonate and silicon micropowder;
thixotropic agent, polyamide wax, 5 parts;
5 parts of a water removal agent;
5 parts of adhesive, N-beta- (aminoethyl) -gamma-aminopropyl methyl trimethoxy silane, gamma-glycidoxypropyl trimethoxy silane and beta- (3, 4-epoxycyclohexyl) -ethyl trimethoxy silane;
catalyst, dibutyl tin diacetate, 0.5 part;
the preparation method of this example is the same as example 1.
Example 5
A novel high-adhesion, high-thixotropy and environment-friendly silane modified polymer waterproof coating comprises the following components in parts by weight:
silane-modified resin: the molecular structure is as follows:
the number average molecular weight is 8000-15000, 40 parts;
15 parts of silicon-based resin, MTQ resin;
nano silicon-based filler with specific surface area of 400m215 portions of/g HMDS pretreatment
25 parts of a plasticizer, diisodecyl phthalate (DIDP);
inorganic filler, 50 parts of nano active calcium carbonate and 20 parts of heavy calcium carbonate;
thixotropic agent, polyamide wax, 5 parts;
5 parts of a water removal agent; .
5 parts of adhesive, namely N-beta- (aminoethyl) -gamma-aminopropyltrimethoxysilane, gamma-glycidoxypropyltrimethoxysilane and 3- (2, 3-epoxypropyl) propyltrimethoxysilane;
catalyst, dibutyltin dilaurate, 0.5 part.
The preparation method of this example is the same as example 1.
Example 6 comparative example 1
The waterproof coating comprises the following components in parts by weight:
silane-modified resin: molecular structure
The number average molecular weight is 8000, 50 portions;
the nano-scale silicon-based filler has a specific surface area of 200-300 m25 portions of DDS pretreatment;
plasticizer, cyclohexane-1, 2-dicarboxylic acid isononyl ester (DINCH), 30 parts;
150 parts of inorganic filler, heavy calcium carbonate and light calcium carbonate;
10 parts of thixotropic agent, hydrogenated castor oil;
5 parts of a water removal agent;
adhesive, gamma-aminopropyl trimethoxy silane, gamma-aminopropyl triethoxy silane, N-beta- (aminoethyl) -gamma-aminopropyl trimethoxy silane, 5 portions
Catalyst, stannous octoate, dibutyltin didodecyl sulfide, 1 part.
Example 7 comparative example 2
The waterproof coating comprises the following components in parts by weight:
silane-modified resin: molecular structure
The number average molecular weight is 8000, 50 portions;
silicon-based resin, MDQ resin, 20 parts;
plasticizer, cyclohexane-1, 2-dicarboxylic acid isononyl ester (DINCH), 30 parts;
150 parts of inorganic filler, heavy calcium carbonate and light calcium carbonate;
10 parts of thixotropic agent, hydrogenated castor oil;
5 parts of a water removal agent;
adhesive, gamma-aminopropyl trimethoxy silane, gamma-aminopropyl triethoxy silane, N-beta- (aminoethyl) -gamma-aminopropyl trimethoxy silane, 5 portions
Catalyst, stannous octoate, dibutyltin didodecyl sulfide, 1 part.
Example 8 comparative example 3
A waterproof coating is prepared by completely replacing the silicon-based resin in example 1 with modified PU resin.
Example 9 comparative example 4
A waterproof coating is prepared by completely replacing the nano-scale silicon-based filler in example 1 with surface-treated nano-scale heavy calcium carbonate.
Example 10 test comparison
The high-adhesion, high-thixotropy, environmentally friendly novel silane-modified polymer waterproof coatings obtained in examples 1-5 were compared with those obtained in comparative examples 1-2 of examples 6-7, and the methods or standards for the performance tests were as follows:
(1) and (3) testing the bonding strength: the test was carried out according to standard GB/T16777-2008, Chapter 7A.
(2) And (3) testing the peel strength: the test was performed according to JC/T1069-2008, 5.8.
(3) Thixotropy (sag resistance) test: the test was carried out according to the specification of 7.28 in GB/T2435-2018, and the coating film thickness was (2.0. + -. 0.2) mm.
(4) VOC testing: testing was performed according to GB/T23986-2009.
The performance test results are shown in table 1:
table 1 results of performance testing
From the test results, the silane modified polymer waterproof coating is environment-friendly, low in VOC and high in adhesion, has the adhesion strength with concrete being more than or equal to 2.5MPa, and the peel strength with a high polymer sheet being more than or equal to 3.5N/mm, can be used as a waterproof layer independently, and can also be used as a composite waterproof layer together with an asphalt coiled material and a high polymer coiled material; the paint has high thixotropy, has the sag of 0mm, can be coated for more than 2mm once, can be applied to plane waterproofing of roofs, floors and the like, can also be applied to facade waterproofing of basement side walls, tunnels and the like, and can be widely applied to various occasions.
Claims (10)
1. A novel high-adhesion, high-thixotropy and environment-friendly silane modified polymer waterproof coating is characterized by comprising the following components in parts by weight:
20-50 parts of silane modified resin, 10-20 parts of silicon-based resin, 5-15 parts of nanoscale silicon-based filler, 10-30 parts of plasticizer, 50-150 parts of inorganic filler, 3-10 parts of thixotropic agent, 1-8 parts of water removing agent, 1-5 parts of adhesive and 0.1-1.0 part of catalyst.
2. The high-adhesion, high-thixotropy and environment-friendly novel silane modified polymer waterproof coating material as claimed in claim 1, which is characterized by comprising the following components in parts by weight:
40 parts of silane modified resin, 15 parts of silicon-based resin, 15 parts of nano silicon-based filler, 25 parts of plasticizer, 20 parts of inorganic filler, 5 parts of thixotropic agent, 5 parts of water removing agent, 5 parts of adhesive and 0.5 part of catalyst.
3. The high-adhesion, high-thixotropy, environmental-friendly novel silane-modified polymer waterproof coating material as claimed in claim 1 or 2, wherein said silane-modified resin is a hydrolyzable silane-based terminated polyether material having a number average molecular weight of 8000-28000.
4. The high-adhesion, high-thixotropy, environmental-friendly novel silane-modified polymer waterproof coating material according to claim 1 or 2, wherein said silicon-based resin is at least one of MQ resin, MDQ resin and MTQ resin having methyl or methylphenyl siloxane chain unit as main chain.
5. The high-adhesion high-thixotropy environment-friendly novel silane modified polymer waterproof coating material as claimed in claim 1 or 2, wherein said nanoscale silicon-based filler is hydrophobic fumed silica, and the specific surface area thereof is 200-400 m2/g。
6. The high-adhesion, high-thixotropy, environmentally friendly novel silane-modified polymer waterproof coating material according to claim 1 or 2, characterized in that said plasticizer is at least one of cyclohexane-1, 2-dicarboxylic acid isononyl ester, diisodecyl phthalate, diisononyl phthalate and didecyl phthalate.
7. The high-adhesion, high-thixotropy, environment-friendly and novel silane-modified polymer waterproof coating material according to claim 1 or 2, wherein said inorganic filler is at least one of heavy calcium carbonate, light calcium carbonate, nano activated calcium carbonate, kaolin, silica micropowder, talc and aluminum hydroxide.
8. The high-adhesion, high-thixotropic, environmentally friendly novel silane-modified polymer waterproof coating material according to claim 1 or 2, characterized in that the thixotropic agent is at least one of polyamide wax, hydrogenated castor oil and organobentonite.
9. The high-adhesion high-thixotropy environmentally friendly novel silane-modified polymer waterproof coating material according to claim 1 or 2, wherein said adhesive is γ -aminopropyltrimethoxysilane, γ -aminopropyltriethoxysilane, N- β - (aminoethyl) - γ -aminopropyltrimethoxysilane, N- β - (aminoethyl) - γ -aminopropyltriethoxysilane, N- β - (aminoethyl) - γ -aminopropylmethyldimethoxysilane, N- β - (aminoethyl) - γ -aminopropylmethyldiethoxysilane, γ -aminopropylmethyldimethoxysilane, γ -aminopropylmethyldiethoxysilane, γ -glycidoxypropyltrimethoxysilane, γ -glycidoxypropyltriethoxysilane, N- β -aminopropyltriethoxysilane, N- β -aminopropylmethyldiethoxysilane, N- β -aminopropyl-methyldiethoxysilane, γ -aminopropyl-methyldimethoxysilane, γ -glycidoxypropyltriethoxysilane, etc, At least one of beta- (3, 4-epoxycyclohexyl) -ethyltrimethoxysilane, beta- (3, 4-epoxycyclohexyl) -ethyltriethoxysilane, 3- (2, 3-epoxypropyl) propyltrimethoxysilane and gamma- (2, 3-epoxypropoxy) propyltrimethoxysilane.
10. The preparation method of the high-adhesion, high-thixotropy and environment-friendly novel silane modified polymer waterproof coating material as claimed in any one of claims 1 to 9, characterized by comprising the following steps:
according to the formula, silane modified resin, silicon-based resin, nanoscale silicon-based filler, plasticizer, inorganic filler and thixotropic agent are dried in vacuum at 110-125 ℃ for 2.5h, then the temperature is reduced to be not more than 50 ℃ in a closed manner, then a water removing agent is added and stirred for 15-30 min, then an adhesive is added and stirred for 20-30 min, finally a catalyst is added and stirred for 10-20 min, and then defoaming treatment is carried out.
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