CN115960500B - Pine oil sealing primer solidified by UV mercury lamp light source and preparation method thereof - Google Patents
Pine oil sealing primer solidified by UV mercury lamp light source and preparation method thereof Download PDFInfo
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- CN115960500B CN115960500B CN202211327571.7A CN202211327571A CN115960500B CN 115960500 B CN115960500 B CN 115960500B CN 202211327571 A CN202211327571 A CN 202211327571A CN 115960500 B CN115960500 B CN 115960500B
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- 238000007789 sealing Methods 0.000 title claims abstract description 29
- 239000010665 pine oil Substances 0.000 title claims abstract description 20
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 title claims abstract description 18
- 229910052753 mercury Inorganic materials 0.000 title claims abstract description 18
- 238000002360 preparation method Methods 0.000 title abstract description 10
- 239000004925 Acrylic resin Substances 0.000 claims abstract description 99
- 229920000178 Acrylic resin Polymers 0.000 claims abstract description 99
- 239000004593 Epoxy Substances 0.000 claims abstract description 36
- 239000004814 polyurethane Substances 0.000 claims abstract description 34
- 229920002635 polyurethane Polymers 0.000 claims abstract description 32
- 239000011347 resin Substances 0.000 claims abstract description 20
- 229920005989 resin Polymers 0.000 claims abstract description 20
- 239000000178 monomer Substances 0.000 claims abstract description 18
- 239000000945 filler Substances 0.000 claims abstract description 17
- 239000011159 matrix material Substances 0.000 claims abstract description 17
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 16
- 229920000728 polyester Polymers 0.000 claims abstract description 16
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims abstract description 13
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims abstract description 8
- 239000002994 raw material Substances 0.000 claims abstract description 6
- 125000003118 aryl group Chemical group 0.000 claims description 21
- -1 acrylic ester Chemical class 0.000 claims description 20
- 239000004743 Polypropylene Substances 0.000 claims description 16
- 229920001155 polypropylene Polymers 0.000 claims description 16
- 229920001169 thermoplastic Polymers 0.000 claims description 15
- 239000004416 thermosoftening plastic Substances 0.000 claims description 15
- WOBHKFSMXKNTIM-UHFFFAOYSA-N Hydroxyethyl methacrylate Chemical group CC(=C)C(=O)OCCO WOBHKFSMXKNTIM-UHFFFAOYSA-N 0.000 claims description 12
- VFHVQBAGLAREND-UHFFFAOYSA-N diphenylphosphoryl-(2,4,6-trimethylphenyl)methanone Chemical compound CC1=CC(C)=CC(C)=C1C(=O)P(=O)(C=1C=CC=CC=1)C1=CC=CC=C1 VFHVQBAGLAREND-UHFFFAOYSA-N 0.000 claims description 12
- 238000003756 stirring Methods 0.000 claims description 12
- 229920002818 (Hydroxyethyl)methacrylate Polymers 0.000 claims description 10
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical group O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 10
- 239000002270 dispersing agent Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 7
- 239000011259 mixed solution Substances 0.000 claims description 6
- 239000006260 foam Substances 0.000 claims description 5
- 239000003112 inhibitor Substances 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 3
- 235000008331 Pinus X rigitaeda Nutrition 0.000 abstract description 33
- 235000011613 Pinus brutia Nutrition 0.000 abstract description 33
- 241000018646 Pinus brutia Species 0.000 abstract description 33
- 239000003973 paint Substances 0.000 abstract description 24
- 238000000576 coating method Methods 0.000 abstract description 13
- 239000004519 grease Substances 0.000 abstract description 10
- 238000004383 yellowing Methods 0.000 abstract description 10
- 239000011248 coating agent Substances 0.000 abstract description 9
- 239000000853 adhesive Substances 0.000 abstract description 8
- 230000001070 adhesive effect Effects 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 12
- 239000002023 wood Substances 0.000 description 10
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 9
- 239000000126 substance Substances 0.000 description 9
- 238000012360 testing method Methods 0.000 description 9
- 239000000463 material Substances 0.000 description 7
- 238000010276 construction Methods 0.000 description 6
- 238000001723 curing Methods 0.000 description 6
- 238000001556 precipitation Methods 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 238000011056 performance test Methods 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- 238000010422 painting Methods 0.000 description 3
- 239000000080 wetting agent Substances 0.000 description 3
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 2
- 244000179970 Monarda didyma Species 0.000 description 2
- 235000010672 Monarda didyma Nutrition 0.000 description 2
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- DAKWPKUUDNSNPN-UHFFFAOYSA-N Trimethylolpropane triacrylate Chemical compound C=CC(=O)OCC(CC)(COC(=O)C=C)COC(=O)C=C DAKWPKUUDNSNPN-UHFFFAOYSA-N 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 125000001931 aliphatic group Chemical group 0.000 description 2
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000004132 cross linking Methods 0.000 description 2
- 239000013530 defoamer Substances 0.000 description 2
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 description 2
- 125000000524 functional group Chemical group 0.000 description 2
- 239000012770 industrial material Substances 0.000 description 2
- QPJVMBTYPHYUOC-UHFFFAOYSA-N methyl benzoate Chemical compound COC(=O)C1=CC=CC=C1 QPJVMBTYPHYUOC-UHFFFAOYSA-N 0.000 description 2
- 239000010445 mica Substances 0.000 description 2
- 229910052618 mica group Inorganic materials 0.000 description 2
- 238000000016 photochemical curing Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 239000000454 talc Substances 0.000 description 2
- 235000012222 talc Nutrition 0.000 description 2
- 229910052623 talc Inorganic materials 0.000 description 2
- 210000002435 tendon Anatomy 0.000 description 2
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 2
- OHVLMTFVQDZYHP-UHFFFAOYSA-N 1-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)-2-[4-[2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidin-5-yl]piperazin-1-yl]ethanone Chemical compound N1N=NC=2CN(CCC=21)C(CN1CCN(CC1)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)=O OHVLMTFVQDZYHP-UHFFFAOYSA-N 0.000 description 1
- 239000012956 1-hydroxycyclohexylphenyl-ketone Substances 0.000 description 1
- GNSFRPWPOGYVLO-UHFFFAOYSA-N 3-hydroxypropyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCCCO GNSFRPWPOGYVLO-UHFFFAOYSA-N 0.000 description 1
- QZLYKIGBANMMBK-UGCZWRCOSA-N 5α-Androstane Chemical compound C([C@@H]1CC2)CCC[C@]1(C)[C@@H]1[C@@H]2[C@@H]2CCC[C@@]2(C)CC1 QZLYKIGBANMMBK-UGCZWRCOSA-N 0.000 description 1
- CONKBQPVFMXDOV-QHCPKHFHSA-N 6-[(5S)-5-[[4-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]piperazin-1-yl]methyl]-2-oxo-1,3-oxazolidin-3-yl]-3H-1,3-benzoxazol-2-one Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)N1CCN(CC1)C[C@H]1CN(C(O1)=O)C1=CC2=C(NC(O2)=O)C=C1 CONKBQPVFMXDOV-QHCPKHFHSA-N 0.000 description 1
- 239000005995 Aluminium silicate Substances 0.000 description 1
- GQSMQNSPDSAXDD-UHFFFAOYSA-N CCC(=O)C(C)(O)Cc1ccccc1 Chemical compound CCC(=O)C(C)(O)Cc1ccccc1 GQSMQNSPDSAXDD-UHFFFAOYSA-N 0.000 description 1
- 239000004155 Chlorine dioxide Substances 0.000 description 1
- 241000755729 Clivia Species 0.000 description 1
- 241000779819 Syncarpia glomulifera Species 0.000 description 1
- OKKRPWIIYQTPQF-UHFFFAOYSA-N Trimethylolpropane trimethacrylate Chemical compound CC(=C)C(=O)OCC(CC)(COC(=O)C(C)=C)COC(=O)C(C)=C OKKRPWIIYQTPQF-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- MQDJYUACMFCOFT-UHFFFAOYSA-N bis[2-(1-hydroxycyclohexyl)phenyl]methanone Chemical compound C=1C=CC=C(C(=O)C=2C(=CC=CC=2)C2(O)CCCCC2)C=1C1(O)CCCCC1 MQDJYUACMFCOFT-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 235000019241 carbon black Nutrition 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 235000019398 chlorine dioxide Nutrition 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229940095102 methyl benzoate Drugs 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000001739 pinus spp. Substances 0.000 description 1
- 229920000555 poly(dimethylsilanediyl) polymer Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000007761 roller coating Methods 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 231100000241 scar Toxicity 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 230000000391 smoking effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 229940036248 turpentine Drugs 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Paints Or Removers (AREA)
Abstract
The invention relates to the technical field of paint, and discloses pine oil sealing primer solidified by a UV mercury lamp light source and a preparation method thereof, wherein the pine oil sealing primer comprises the following raw materials in parts by weight: 40-60 parts of acrylate monomer, 45-90 parts of matrix resin, 1-5 parts of photoinitiator, 10-20 parts of filler and 0.5-10 parts of auxiliary agent, wherein the matrix resin comprises epoxy acrylic resin, polyurethane acrylic resin, polyester acrylic resin and phosphoric acid acrylic resin. According to the invention, the epoxy acrylic resin is matched with the polyurethane acrylic resin and the polyester acrylic resin to control the addition amount of the monomer and the filler, and the prepared primer has stronger adhesive force on pine after ultraviolet light curing, can well realize the sealing effect on pine grease, has excellent impact resistance, weather resistance and yellowing resistance, and does not influence subsequent coating and layers.
Description
Technical Field
The invention relates to the technical field of coatings, in particular to the field of IPC C09D167, and more particularly relates to a pine oil sealing primer cured by a UV mercury lamp light source and a preparation method thereof.
Background
Pine is used as an artificial fast-growing wood with a large accumulation amount, and furniture products of the pine are deeply favored by consumers. Pine wood contains a certain amount of grease, and after a certain temperature, the pine wood can permeate out of the surface layer to continuously emit the smell of pine oil. In addition, the surface smoothness of pine is poor, in order to better utilize pine as furniture, the surface of pine is required to be coated with primer, then the surface paint is coated, the performance of the surface paint is improved, and pine oil is sealed. However, the current construction conditions of partial primer have strong restriction, lack of universality, and have the problems of poor adhesion, mechanical properties and sealing performance at high temperature.
In order to solve the problems, application document CN201911327493.9 discloses an ultraviolet light curing coating for sealing turpentine of pine and a preparation method thereof, wherein the preparation raw materials comprise water-soluble UV resin, polyester acrylate, polyurethane acrylate, photoinitiator, wetting agent, defoamer, leveling agent and active monomer. By adjusting the types and the addition amounts of the active monomers and compounding various auxiliary agents, the prepared UV coating has strong adhesive force, good sealing effect and simple construction process, but the construction process has no universality and the weather resistance is not obviously improved.
Application document CN202111365123.1 discloses a solvent-based UV-curable coating for sealing pine scar grease and a use method thereof, wherein the preparation raw materials comprise special polyurethane acrylic resin, wetting agent, TMPTA, photoinitiator, DPGDA and defoamer. The special polyurethane acrylic resin is adopted to improve the adhesive force of the paint, and the proper molecular weight and polarity prevent the precipitation of grease, but the mechanical strength and weather resistance of the paint are not considered.
Disclosure of Invention
In order to solve the problems, the epoxy acrylic resin is matched with the polyurethane acrylic resin and the polyester acrylic resin to control the addition amount of the monomer and the filler, and the prepared primer has stronger adhesive force to pine after ultraviolet light curing, can well realize the sealing effect on pine grease, has excellent impact resistance, weather resistance and yellowing resistance, and does not influence the subsequent coating and pattern layers.
The invention provides a pine oil sealing primer solidified by a UV mercury lamp light source, which comprises the following raw materials in parts by mass: 40-60 parts of acrylate monomer, 45-90 parts of matrix resin, 1-5 parts of photoinitiator, 10-20 parts of filler and 0.5-10 parts of auxiliary agent.
Preferably, the acrylate monomer comprises one or more of hydroxyethyl methacrylate, hydroxypropyl methacrylate, trimethylolpropane trimethacrylate and trimethylolpropane triacrylate.
Further preferably, the acrylate monomer is hydroxyethyl methacrylate.
Further preferably, the hydroxyethyl methacrylate (CAS number 868-77-9) is purchased from Jinan Ming Yu Chemicals Co., ltd.
Preferably, the matrix resin comprises, by mass, 30-40 parts of epoxy acrylic resin, 5-20 parts of polyurethane acrylic resin, 10-20 parts of polyester acrylic resin and 5-20 parts of phosphoric acid acrylic resin.
Preferably, the epoxy acrylic resin comprises one or more of multifunctional epoxy acrylic resin and multifunctional modified epoxy acrylic resin.
Further preferably, the epoxy acrylic resin is a difunctional modified epoxy acrylic resin.
Further preferably, the mass ratio of the hydroxyethyl methacrylate to the difunctional group modified epoxy acrylic resin is (9-11): (6-8).
In the application, the mass ratio of the hydroxyethyl methacrylate to the difunctional modified epoxy acrylic resin is controlled to be (9-11): (6-8) effectively improving the heat resistance, corrosion resistance and adhesive force of the primer. The applicant finds that the specific amount of hydroxyethyl methacrylate and the difunctional group modified epoxy acrylic resin participate in the reaction, the primer has good permeability on the surface of pine, the volume shrinkage rate during curing is lower, the flexibility of the modified epoxy acrylic resin is higher, and the heat resistance, corrosion resistance and adhesive force of the primer are effectively improved.
Further preferably, the mass ratio of the hydroxyethyl methacrylate to the difunctional group modified epoxy acrylic resin is 10:7.
further preferably, the difunctional epoxy acrylic resin is purchased from south androstane field chemical company, model 4252.
Preferably, the mass ratio (2-4) of the polyester acrylic resin, the difunctional modified epoxy acrylic resin and the phosphoric acid acrylic resin is as follows: 6: (1:3).
Epoxy acrylic resin can improve heat resistance and corrosion resistance of the primer, but the high viscosity has certain limitation on construction. In the present application, the mass ratio of the polyester acrylic resin to the difunctional modified epoxy acrylic resin is controlled (2-4): 6: (1-3) further improving the adhesion of the primer without affecting the subsequent painting and coating. The applicant finds that the viscosity of the primer can be directly reduced after the low-viscosity polyester acrylic resin is introduced, so that the primer is favorably uniformly dispersed in the pore groove structure of the surface of pine; but with too low a viscosity, sagging tends to occur during the application process. In addition, the different speeds of photo-curing between different resins can affect subsequent painting and coating. The specific amount of polyester acrylic resin, the two functional group modified epoxy acrylic resin and the phosphoric acid acrylic resin act together to adjust the viscosity of the primer and control the surface layer solidification, so that the adhesive force of the primer is further improved, the subsequent coating is not affected, and the construction mode has certain universality.
Further preferably, the polyester acrylic resin is purchased from bergamot blue-industrial materials limited, model 2915; the phosphoacrylic resin was purchased from Qian you chemical materials Co., ltd., model UV7424.
Preferably, the urethane acrylic comprises a multifunctional urethane acrylic.
Further preferably, the multifunctional urethane acrylic resin comprises one or more of multifunctional aromatic urethane acrylic resin and multifunctional aliphatic urethane acrylic resin.
Further preferably, the multi-functional urethane acrylic comprises a multi-functional aromatic urethane acrylic.
The multifunctional aromatic polyurethane acrylic resin is introduced, so that the low temperature resistance of the primer and the sealing property of pine oil precipitated on the surface of pine are effectively improved. Some rosin can be separated out from the surface of pine, and primer is required to have good sealing property. The applicant found that the low temperature resistance of the primer can be improved when urethane acrylic resin is introduced; when the polyurethane acrylic resin is thermoplastic polyfunctional aromatic polyurethane acrylic resin, the mechanical strength of the primer can be greatly improved by the rigid aromatic ring, and the polyfunctional group can provide higher crosslinking density during photocuring, so that the impact resistance of a paint film is improved, and the release oil on the surface of the solid sealed pine is effectively separated out.
Further preferably, the polyfunctional aromatic urethane acrylic resin is a hexafunctional aromatic urethane acrylic resin.
Further preferably, the six-functional group aromatic polyurethane acrylic resin is a reactive thermoplastic six-functional group aromatic polyurethane acrylic resin.
Further preferably, the reactive thermoplastic hexafunctional aromatic polyurethane acrylic resin is purchased from Guangdong and New Material Co., ltd., model 5230.
Preferably, the photoinitiator comprises one or more of 2-hydroxy-2-methyl-1-phenylpropione, 1-hydroxycyclohexyl phenyl ketone, 2,4, 6-trimethylbenzoyl-diphenyl phosphine oxide and methyl benzoate.
Further preferably, the photoinitiator comprises 2-hydroxy-2-methyl-1-phenylpropion, 2,4, 6-trimethylbenzoyl-diphenyl phosphine oxide, 2-hydroxy-2-methyl-1-phenylpropion, and the mass ratio of 2,4, 6-trimethylbenzoyl-diphenyl phosphine oxide is (1-2): (2-3).
Further preferably, the mass ratio of the 2-hydroxy-2-methyl-1-phenylpropionic acid to the 2,4, 6-trimethylbenzoyl-diphenyl phosphine oxide is 1:2.
further preferably, the 2-hydroxy-2-methyl-1-phenylpropion (CAS number 7473-98-5) is purchased from double bond chemical (Shanghai) Inc., model JRCure1103; the 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide (CAS number 75980-60-8) was purchased from Tianjin Jiuzu New Material Co., ltd.
Preferably, the auxiliary agent comprises one or more of a foam inhibitor, a wetting agent, a leveling agent, a dispersing agent and polypropylene.
Further preferably, the auxiliary agent comprises a dispersing agent, a foam inhibitor and polypropylene.
Further preferably, the dispersant comprises one or more of BYK-163, RD-9611, MT5040, EFKA4010.
Further preferably, the dispersant is EFKA4010, available from Shanghai chemical Co., ltd.
Further preferably, the suds suppressor comprises a polydimethylsilane emulsion, DAPRO AP1622, tegoairex 920.
Further preferably, the suds suppressor is Tegaairex 920, available from Shanghai, inc.
Further preferably, the polypropylene, the difunctional modified epoxy acrylic resin and the reactive thermoplastic multifunctional aromatic polyurethane acrylic resin have the mass ratio of (0.03-0.06): 3: (0.5-1.5).
In the application, the mass ratio of the polypropylene to the difunctional modified epoxy acrylic resin to the reactive thermoplastic multifunctional aromatic polyurethane acrylic resin is (0.03-0.06): 3: (0.5-1.5), and is effective in improving the impact resistance and durability of the primer. The applicant speculates that the specific amount of polypropylene, the two-functional group modified epoxy acrylic resin and the reactive thermoplastic multifunctional aromatic polyurethane acrylic resin act together, so that the proper crosslinking network density and the proper molecular size of the polypropylene have high possibility of physical or chemical combination with a high molecular chain, the bonding force between the two is improved, and the matrix strength is improved; and polypropylene has strong tendency of migrating to the surface of a paint film, when the paint film is impacted, micro-cracking can be generated, more impact force is absorbed, and the impact resistance and durability of the primer are effectively improved.
Further preferably, the mass ratio of the polypropylene to the difunctional modified epoxy acrylic resin to the reactive thermoplastic multifunctional aromatic polyurethane acrylic resin is 0.05:3:1.
further preferably, the polypropylene is purchased from Dongguan Feng New Material Co., ltd., model PP2204.
Preferably, the filler comprises one or more of silicon dioxide, carbon black, kaolin, chlorine dioxide, mica powder and talcum powder.
Further preferably, the filler is talc.
Further preferably, the mass ratio of the talcum powder to the reactive thermoplastic multifunctional aromatic polyurethane acrylic resin is (2-4) (1-3).
Although aromatic urethane acrylic can improve the weatherability of the primer, the presence of aromatic rings can affect the aging resistance of the primer. In the application, the mass ratio of talcum powder to reactive thermoplastic polyfunctional aromatic polyurethane acrylic resin is controlled to be (2-4) (1-3), so that the yellowing resistance and the permeation resistance of the primer are effectively improved. The talcum powder has the blocking property to infrared rays and ultraviolet rays, and can improve the ageing resistance of the primer. The applicant speculates that the specific amount of talcum powder and the reactive thermoplastic polyfunctional group aromatic polyurethane acrylic resin act together, the talcum powder is uniformly dispersed in the crosslinked network structure containing polypropylene, the penetration path length of pine oil on the surface of pine is increased, and the yellowing resistance and the permeation resistance of the primer are effectively improved.
Further preferably, the mass ratio of the talcum powder to the reactive thermoplastic multifunctional aromatic polyurethane acrylic resin is 3:2.
further preferably, the talc is purchased from Guangxi Sheng Jinbei Shell New Material technology Co., ltd., model 90-10-90.
The second part of the invention provides a preparation method of pine oil seal primer solidified by a UV mercury lamp light source, which comprises the following steps:
s1: mixing the matrix resin with the acrylate monomer according to the formula amount, wherein the temperature is 30-40 ℃, the stirring time is 3-4h, and the stirring speed is 300-800rpm, so as to obtain a mixed solution A;
s2: and (3) sequentially adding the photoinitiator, the filler and the auxiliary agent in the formula amount into the mixed solution A obtained in the step (S1), stirring at the stirring speed of 300-500rpm and at the temperature of 30 ℃ for 4-9min to obtain the pine oil sealing primer solidified by the UV mercury lamp light source.
Advantageous effects
(1) In the application, the mass ratio of the hydroxyethyl methacrylate to the difunctional modified epoxy acrylic resin is controlled to be (9-11): (6-8) effectively improving the heat resistance, corrosion resistance and adhesive force of the primer.
(2) In the present application, the mass ratio of the polyester acrylic resin to the difunctional modified epoxy acrylic resin is controlled (2-4): 6: (1-3) further improving the adhesion of the primer without affecting the subsequent painting and coating.
(3) The multifunctional aromatic polyurethane acrylic resin is introduced, so that the low temperature resistance of the primer and the sealing property of pine oil precipitated on the surface of pine are effectively improved.
(4) In the application, the mass ratio of the polypropylene to the difunctional modified epoxy acrylic resin to the reactive thermoplastic multifunctional aromatic polyurethane acrylic resin is (0.03-0.06): 3: (0.5-1.5), and is effective in improving the impact resistance and durability of the primer.
(5) In the application, the mass ratio of talcum powder to reactive thermoplastic polyfunctional aromatic polyurethane acrylic resin is controlled to be (2-4) (1-3), so that the yellowing resistance and the permeation resistance of the primer are effectively improved.
Examples
Example 1
The first part of the embodiment provides a pine oil seal primer solidified by a UV mercury lamp light source, which comprises the following preparation raw materials in parts by mass: 50 parts of acrylate monomer, 70 parts of matrix resin, 0.6 part of photoinitiator, 15 parts of filler and 1 part of auxiliary agent.
The acrylic ester monomer is hydroxyethyl methacrylate (CAS number: 868-77-9), purchased from Jinan Ming Yu chemical Co., ltd.
The matrix resin comprises 35 parts of epoxy acrylic resin, 15 parts of polyester acrylic resin, 10 parts of phosphoric acid acrylic resin and 10 parts of polyurethane acrylic resin.
The epoxy acrylic resin is a difunctional modified epoxy acrylic resin, and is purchased from Nandrograph field chemical industry Co., ltd, model 4252; the polyester acrylic resin is purchased from the industrial materials limited company of blue-blue of the bergamot, model 2915; the phosphoacrylic resin is purchased from Qian you chemical materials Co., ltd., model UV7424; the polyurethane acrylic resin is a reactive thermoplastic multifunctional aromatic polyurethane acrylic resin, and is purchased from Guangdong Pont and New Material Co., ltd., model 5230.
The photoinitiator is 2-hydroxy-2-methyl-1-phenylpropion, 2,4, 6-trimethylbenzoyl-diphenyl phosphine oxide, and the mass ratio of the 2-hydroxy-2-methyl-1-phenylpropion to the 2,4, 6-trimethylbenzoyl-diphenyl phosphine oxide is 1:2.
the 2-hydroxy-2-methyl-1-phenylpropion (CAS number 7473-98-5) was purchased from double bond chemical (Shanghai) Inc., model JRCure1103; the 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide (CAS number 75980-60-8) was purchased from Tianjin Jiuzu New Material Co., ltd.
The auxiliary agent comprises 0.2 part of dispersing agent, 0.3 part of foam inhibitor and 0.5 part of polypropylene.
The dispersant was purchased from win-creation specialty chemical (Shanghai) limited under model EFKA4010; the suds suppressor is purchased from win-creation specialty chemicals (Shanghai) limited under model Tegaairex 920; the polypropylene was purchased from Dongguan city, feng jin New Material Co., ltd., model PP2204.
The filler is talcum powder, and is purchased from Guangxi Longshengjinbei shell new material science and technology Co., ltd, model number 90-10-90.
The second part of the embodiment provides a preparation method of pine oil seal primer solidified by a UV mercury lamp light source, which comprises the following steps:
s1: mixing the matrix resin with the formula amount and the acrylic ester monomer, wherein the temperature is 30 ℃, the stirring time is 3 hours, and the stirring speed is 600rpm, so as to obtain a mixed solution A;
s2: and (3) sequentially adding the photoinitiator, the filler and the auxiliary agent in the formula amount into the mixed solution A obtained in the step (S1), and stirring for 8min at the temperature of 30 ℃ at the stirring speed of 400rpm to obtain the pine oil sealing primer solidified by the UV mercury lamp light source.
Example 2
The difference with example 1 is 45 parts of acrylate monomer, 69 parts of matrix resin, 0.6 part of photoinitiator, 15 parts of filler and 1 part of auxiliary agent.
The matrix resin comprises 35 parts of epoxy acrylic resin, 15 parts of polyester acrylic resin, 10 parts of phosphoric acid acrylic resin and 9 parts of polyurethane acrylic resin.
Example 3
The difference from example 1 is 50 parts of acrylate monomer, 70 parts of matrix resin, 0.6 part of photoinitiator, 12.5 parts of filler and 0.9 part of auxiliary agent.
The auxiliary agent comprises 0.2 part of dispersing agent, 0.3 part of foam inhibitor and 0.4 part of polypropylene.
Example 4
The difference with example 1 is 40 parts of acrylate monomer, 65 parts of matrix resin, 0.6 part of photoinitiator, 15 parts of filler and 1 part of auxiliary agent.
The matrix resin comprises 35 parts of epoxy acrylic resin, 10 parts of polyester acrylic resin, 10 parts of phosphoric acid acrylic resin and 10 parts of polyurethane acrylic resin.
The epoxy acrylic resin is bisphenol A epoxy acrylic resin, and is purchased from Guangzhou Hepian New Material science and technology Co., ltd., model ZC8801.
Example 5
The difference from example 1 is that the urethane acrylic resin is an aliphatic urethane acrylic resin, the functional group is 3, and the urethane acrylic resin is purchased from Guangzhou iridescent New Material technology Co., ltd., model ZC6531.
Example 6
The difference from example 1 is that no polypropylene is added.
Example 7
The difference from example 1 is that the filler is mica powder, 200 mesh, purchased from the company of the Huana mineral products, inc. of Shijia.
Performance testing
Performance test 1: example 1
The coating process of the pine oil-sealing primer cured by the UV mercury lamp light source prepared in the embodiment 1 is carried out according to the following experimental examples 1-3, and the base material is pine.
Experimental example 1
A1: the oil seal primer of example 1 was roll coated on the surface of pine with a roll coater to a film thickness of 20 μm; at an intensity of 30mW/cm with a UV mercury lamp 2 The lower curing time is 2 hours, and the surface of pine wood is provided with an oil sealing bottom;
a2: the UV sanding primer is coated on the oil sealing bottom of the A1 by a roll coater, sanding is carried out, and the surface of the pine wood is provided with a sanding bottom B1;
a3: the sanding bottom B1 of the A2 is coated with UV sanding bottom paint by a roll coater, sanding is carried out, and the surface of the pine wood is provided with a sanding bottom B2;
a4: the UV topcoat was roll coated on sanding bottom B2 of A3 with a roll coater.
The UV sanding primer and the UV finishing paint are self-made by the company.
Experimental example 2
A1: the oil seal primer of example 1 was roll coated on the surface of pine with a roll coater to a film thickness of 20 μm; at an intensity of 30mW/cm with a UV mercury lamp 2 The lower curing time is 2 hours, and the surface of pine wood is provided with an oil sealing bottom;
a2: spraying UV sanding primer on the oil sealing bottom of the A1, and sanding, wherein the surface of the pine wood is provided with a sanding bottom B1;
a3: and spraying PU finishing paint on the sanding bottom B1 of the A2.
The UV sanding primer and the PU finishing paint are self-made by the company.
Experimental example 3
A1: the oil seal primer of example 1 was roll coated on the surface of pine with a roll coater to a film thickness of 20 μm; at an intensity of 30mW/cm with a UV mercury lamp 2 The lower curing time is 2 hours, and the surface of pine wood is provided with an oil sealing bottom;
a2: spraying UV sanding primer on the oil sealing bottom of the A1, and sanding, wherein the surface of the pine wood is provided with a sanding bottom B1;
a3: and spraying an aqueous finish paint on the sanding bottom B1 of the A2.
The UV sanding primer and the water-based finish paint are self-made by the company.
Performance test method
(1) Adhesion test
The adhesion test standard is according to GB/T4893.4-2013.
(2) Impact resistance
Impact resistance test criteria are according to GB/T1732-1993.
(3) Weather resistance
Cold and hot circulation: the paint films of experimental examples 1 to 3 were dried and put into a cold and hot circulator, after the paint film was kept at 40℃for 4 hours, the paint film was kept at-20℃for 4 hours as one cycle, and after 5 cycles, the appearance of the edge of the paint film was examined.
10 samples are respectively arranged for each experimental example for testing, the number of the bulging edges on the surface of the paint film after the heat resistance test is recorded as N, and N=0 is no bulging edge; n is more preferably more than 0 and less than or equal to 2; n is less than or equal to 2 and less than or equal to 4, and N is more than 4, and is a serious edge.
(4) Heat resistance
The paint films of experimental examples 1-3 were dried and placed in an environment of 50℃for 72 hours, and the precipitation of oil and the swelling of the surface of the paint film were examined.
10 samples are respectively arranged for each experimental example for testing, the number of grease precipitation and rib expansion phenomena on the surface of a paint film after the heat resistance test is recorded as N1, and N1=0 is no grease precipitation and no bright rib appears; n1 is more than 0 and less than or equal to 2, and is slight grease precipitation and slight bright rib; n1 is more than 2 and less than or equal to 4, which is that grease is separated out, obvious bright tendons, and N1 is more than 4, which is that a large amount of grease is separated out, and a large amount of obvious bright tendons.
(5) Permeation resistance
The rosin odor was evaluated after the films of experimental examples 1-3 were dried in a blind evaluation.
Panel of assessments: the panelists were 15, and the panelists participated in the assessment without long-term smoking, and without cold stuffy nose.
The number of people smelling smell in the number of people to be assessed is recorded as n, and n is less than or equal to 1 and no obvious smell exists; n is more than 1 and less than or equal to 3, and is slightly smelly; n is more than 3 and less than or equal to 5, and is obvious smell, and n is more than 5 and is strong smell.
(6) Yellowing resistance
The yellowing resistance test method is described in GB T23983-2009.
The test examples 1 to 3 were subjected to the performance test of adhesion, heat and cold resistance, impact resistance, permeation resistance and yellowing resistance, and the results are shown in Table 1.
Performance test 2: examples 2 to 7
The first coating process is carried out on the pine base material, and the primer is the pine oil sealing primer cured by the UV mercury lamp light source prepared in examples 2-7. The subsequent coating process was carried out in the manner of experimental example 2. After the paint film was dried, the adhesion, impact resistance and yellowing resistance were measured by the same method as that described above, and the results are shown in Table 2 with reference to ASTM standards.
TABLE 1
The conventional bottom attachment construction was the same as that of the bottom sealing paint of example 1.
The conventional adhesion bottom is UD152 UV roller coating oil sealing primer, and is produced by Shanghai clivia new material stock Co.
TABLE 2
| Adhesion force | Impact resistance (cm) | Yellowing resistance (.E) | |
| Example 2 | 1 | 13 | 1.10 |
| Example 3 | 0 | 12 | 1.16 |
| Example 4 | 2 | 10 | 1.40 |
| Example 5 | 1 | 9 | 1.36 |
| Example 6 | 3 | 7 | 1.52 |
| Example 7 | 2 | 9 | 1.96 |
Claims (2)
1. The pine oil sealing primer solidified by a UV mercury lamp light source is characterized by comprising the following raw materials in parts by weight: 50 parts of acrylate monomer, 70 parts of matrix resin, 0.6 part of photoinitiator, 15 parts of filler and 1 part of auxiliary agent;
the acrylic ester monomer is hydroxyethyl methacrylate;
the matrix resin comprises 35 parts of epoxy acrylic resin, 15 parts of polyester acrylic resin, 10 parts of phosphoric acid acrylic resin and 10 parts of polyurethane acrylic resin;
the epoxy acrylic resin is a difunctional modified epoxy acrylic resin;
the photoinitiator is 2-hydroxy-2-methyl-1-phenylpropion and 2,4, 6-trimethylbenzoyl-diphenyl phosphine oxide;
the mass ratio of the 2-hydroxy-2-methyl-1-phenylpropion to the 2,4, 6-trimethylbenzoyl-diphenyl phosphine oxide is 1:2;
the filler is talcum powder;
the polyurethane acrylic resin is reactive thermoplastic multifunctional aromatic polyurethane acrylic resin;
the auxiliary agent comprises 0.2 part of dispersing agent, 0.3 part of foam inhibitor and 0.5 part of polypropylene.
2. A method for preparing the pine oil seal primer cured by the light source of the UV mercury lamp according to claim 1, which comprises the following steps:
s1: mixing the matrix resin with the acrylate monomer according to the formula amount, wherein the temperature is 30-40 ℃, the stirring time is 3-4h, and the stirring speed is 300-800rpm, so as to obtain a mixed solution A;
s2: and (3) sequentially adding the photoinitiator, the filler and the auxiliary agent in the formula amount into the mixed solution A obtained in the step (S1), stirring at the stirring speed of 300-500rpm and at the temperature of 20-30 ℃ for 4-9min to obtain the pine oil sealing primer solidified by the UV mercury lamp light source.
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