WO2024103772A1 - 一种环保型水性高遮盖复合颜料色浆及其制备方法和应用 - Google Patents
一种环保型水性高遮盖复合颜料色浆及其制备方法和应用 Download PDFInfo
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- WO2024103772A1 WO2024103772A1 PCT/CN2023/104405 CN2023104405W WO2024103772A1 WO 2024103772 A1 WO2024103772 A1 WO 2024103772A1 CN 2023104405 W CN2023104405 W CN 2023104405W WO 2024103772 A1 WO2024103772 A1 WO 2024103772A1
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- Prior art keywords
- composite pigment
- pigment
- organic
- hiding
- inorganic
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- 239000000049 pigment Substances 0.000 title claims abstract description 193
- 239000002131 composite material Substances 0.000 title claims abstract description 108
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 66
- 239000007822 coupling agent Substances 0.000 claims abstract description 26
- 239000012860 organic pigment Substances 0.000 claims abstract description 26
- 239000001023 inorganic pigment Substances 0.000 claims abstract description 23
- 239000002994 raw material Substances 0.000 claims abstract description 17
- 239000002270 dispersing agent Substances 0.000 claims abstract description 15
- 239000000080 wetting agent Substances 0.000 claims abstract description 13
- 239000006115 industrial coating Substances 0.000 claims abstract description 11
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 18
- 238000003756 stirring Methods 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 16
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims description 15
- 229920001577 copolymer Polymers 0.000 claims description 15
- 239000011976 maleic acid Substances 0.000 claims description 15
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 claims description 15
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 12
- 239000013530 defoamer Substances 0.000 claims description 10
- 239000000417 fungicide Substances 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 10
- 229920002126 Acrylic acid copolymer Polymers 0.000 claims description 9
- 230000000855 fungicidal effect Effects 0.000 claims description 9
- 239000004593 Epoxy Substances 0.000 claims description 8
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims description 7
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 6
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 6
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 claims description 6
- -1 siloxanes Chemical class 0.000 claims description 4
- FXNDIJDIPNCZQJ-UHFFFAOYSA-N 2,4,4-trimethylpent-1-ene Chemical group CC(=C)CC(C)(C)C FXNDIJDIPNCZQJ-UHFFFAOYSA-N 0.000 claims description 3
- VQTUBCCKSQIDNK-UHFFFAOYSA-N Isobutene Chemical group CC(C)=C VQTUBCCKSQIDNK-UHFFFAOYSA-N 0.000 claims description 3
- 239000002202 Polyethylene glycol Substances 0.000 claims description 3
- QYKIQEUNHZKYBP-UHFFFAOYSA-N Vinyl ether Chemical compound C=COC=C QYKIQEUNHZKYBP-UHFFFAOYSA-N 0.000 claims description 3
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 claims description 3
- 230000009977 dual effect Effects 0.000 claims description 3
- 125000003700 epoxy group Chemical group 0.000 claims description 3
- 238000000227 grinding Methods 0.000 claims description 3
- 239000012948 isocyanate Substances 0.000 claims description 3
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 claims description 3
- 150000002513 isocyanates Chemical class 0.000 claims description 3
- 229920003145 methacrylic acid copolymer Polymers 0.000 claims description 3
- 238000012986 modification Methods 0.000 claims description 3
- 230000004048 modification Effects 0.000 claims description 3
- 229920002587 poly(1,3-butadiene) polymer Polymers 0.000 claims description 3
- 229920001223 polyethylene glycol Polymers 0.000 claims description 3
- 239000004094 surface-active agent Substances 0.000 claims description 3
- 150000002009 diols Chemical class 0.000 claims 1
- 239000001031 chromium pigment Substances 0.000 abstract description 7
- 230000007797 corrosion Effects 0.000 abstract description 6
- 238000005260 corrosion Methods 0.000 abstract description 6
- 238000004040 coloring Methods 0.000 abstract description 3
- 239000002518 antifoaming agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 description 14
- 230000000052 comparative effect Effects 0.000 description 11
- 239000003973 paint Substances 0.000 description 11
- 239000011248 coating agent Substances 0.000 description 10
- 238000012360 testing method Methods 0.000 description 9
- 239000008367 deionised water Substances 0.000 description 8
- 229910021641 deionized water Inorganic materials 0.000 description 8
- 239000004576 sand Substances 0.000 description 8
- 230000008569 process Effects 0.000 description 5
- 239000007921 spray Substances 0.000 description 5
- 238000010998 test method Methods 0.000 description 5
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 4
- 239000003086 colorant Substances 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 238000013112 stability test Methods 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000011179 visual inspection Methods 0.000 description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 3
- 229910052804 chromium Inorganic materials 0.000 description 3
- 239000011651 chromium Substances 0.000 description 3
- 229920006334 epoxy coating Polymers 0.000 description 3
- 239000011527 polyurethane coating Substances 0.000 description 3
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- HZEWFHLRYVTOIW-UHFFFAOYSA-N [Ti].[Ni] Chemical compound [Ti].[Ni] HZEWFHLRYVTOIW-UHFFFAOYSA-N 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 2
- 229910052797 bismuth Inorganic materials 0.000 description 2
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000005189 flocculation Methods 0.000 description 2
- 230000016615 flocculation Effects 0.000 description 2
- 150000002334 glycols Chemical class 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000012756 surface treatment agent Substances 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- LSGOVYNHVSXFFJ-UHFFFAOYSA-N vanadate(3-) Chemical compound [O-][V]([O-])([O-])=O LSGOVYNHVSXFFJ-UHFFFAOYSA-N 0.000 description 2
- 239000002966 varnish Substances 0.000 description 2
- 240000002989 Euphorbia neriifolia Species 0.000 description 1
- 239000004972 Polyurethane varnish Substances 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical group [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000383 hazardous chemical Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000005338 heat storage Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 125000001841 imino group Chemical group [H]N=* 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229940117841 methacrylic acid copolymer Drugs 0.000 description 1
- 125000000962 organic group Chemical group 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000002464 physical blending Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000011253 protective coating Substances 0.000 description 1
- 150000004756 silanes Chemical class 0.000 description 1
- SCPYDCQAZCOKTP-UHFFFAOYSA-N silanol Chemical compound [SiH3]O SCPYDCQAZCOKTP-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
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D17/00—Pigment pastes, e.g. for mixing in paints
- C09D17/003—Pigment pastes, e.g. for mixing in paints containing an organic pigment
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions 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
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D17/00—Pigment pastes, e.g. for mixing in paints
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D17/00—Pigment pastes, e.g. for mixing in paints
- C09D17/004—Pigment pastes, e.g. for mixing in paints containing an inorganic pigment
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
Definitions
- the present invention relates to the field of water-based pigment paste, and more specifically, to an environmentally friendly water-based high-hiding composite pigment paste and a preparation method and application thereof.
- Paints protect and decorate the surface of the coated object.
- pigments as the key material for the color source of paints, can not only give the paints rich and colorful colors, but also make the paints have better hiding power, mechanical strength and corrosion resistance. They are an indispensable component of paints.
- lead-chromium pigments have been widely used in the field of coatings for their bright colors, excellent physical and chemical properties, and economy.
- lead and chromium are both heavy metal elements, which not only pollute the environment, but also cause harm to the human body. Based on the hazards of lead-chromium pigments, the World Health Organization calls for a global ban on the use of lead-containing and chromium-containing pigments by 2020.
- Inorganic pigments are the most widely used pigments in the coatings industry. They have the advantages of high hiding power, good light fastness, weather fastness, heat stability, and excellent solvent resistance. They are mainly used for hiding, coloring, protection, and corrosion protection. However, due to the low tinting power and saturation, their color performance is often unsatisfactory. Organic pigments have the advantages of bright colors and high tinting power, but their hiding power and weather resistance are often not as good as inorganic pigments. Therefore, fully combining the advantages of inorganic and organic pigments is one of the feasible alternatives to lead chromium pigments.
- the purpose of the present invention is to provide an environmentally friendly water-based high-hiding composite pigment paste and its preparation method and application, so as to replace lead-chromium pigments in water-based industrial coatings.
- the composite pigment paste has strong hiding power, high corrosion resistance, high tinting power, and is environmentally friendly and can be used in various water-based industrial coatings.
- the present invention provides an environmentally friendly water-based high-hiding composite pigment paste, comprising the following raw materials in percentage by mass:
- the organic-inorganic composite pigment comprises an organic pigment, an inorganic pigment and a coupling agent, and the organic pigment and the inorganic pigment are chemically grafted onto the coupling agent.
- the coupling agent is selected from silane coupling agents with side chains modified by epoxy, amino or isocyanate groups.
- the R1 is selected from epoxy, amino or isocyanate; the R is selected from aliphatic carbon chain; and n is a positive integer of 10-15.
- the mass of the organic pigment accounts for 1-50% of the total mass of the organic-inorganic composite pigment.
- the mass of the organic pigment accounts for 25-40% of the total mass of the organic-inorganic composite pigment.
- the mass of the coupling agent accounts for 0.3-3% of the total mass of the organic-inorganic composite pigment.
- the mass of the coupling agent accounts for 1-2% of the total mass of the organic-inorganic composite pigment.
- the preparation of the organic-inorganic composite pigment comprises the following steps:
- the organic pigment and the inorganic pigment are mixed, a coupling agent is added under stirring, and the mixture is dried at 80-100° C. for 1-2 hours to obtain the organic-inorganic composite pigment.
- the raw material also contains 0-3% by mass of a fungicide.
- the dispersant is selected from one or more of styrene/acrylic acid copolymer, acrylic acid/maleic acid copolymer, acrylic acid/methacrylic acid copolymer, butadiene/acrylic acid copolymer, isobutylene/maleic acid copolymer, diisobutylene/maleic acid copolymer, styrene/maleic acid copolymer, and polyethylene glycol monovinyl ether/maleic acid copolymer.
- the wetting agent is selected from one or more of modified alkoxylates, polyether-modified siloxanes, ethoxylated acetylenic glycols or siloxane dual-effect surfactants.
- the present invention provides a method for preparing the above-mentioned environmentally friendly water-based high-hiding composite pigment paste, comprising the following steps:
- the remaining water is added and mixed to obtain the environmentally friendly water-based high-hiding composite pigment paste.
- the present invention provides use of the above-mentioned environmentally friendly water-based high hiding composite pigment paste in water-based industrial coatings.
- the organic-inorganic composite pigment with a specific structure is combined with other components.
- the composite pigment paste is endowed with high hiding power and strong tinting power; at the same time, the composite pigment paste has good compatibility with various water-based industrial coatings, does not affect the gloss of the coating, and can effectively improve various physical and chemical properties such as water resistance, salt spray resistance, and corrosion resistance.
- an environmentally friendly water-based high-hiding composite pigment paste comprising the following raw materials in percentage by mass:
- the organic-inorganic composite pigment comprises an organic pigment, an inorganic pigment and a coupling agent, and the organic pigment and the inorganic pigment are chemically grafted onto the coupling agent.
- Inorganic pigments are the most widely used pigments in the coatings industry. They have the advantages of high hiding power, good light fastness, weather fastness, heat stability, and excellent solvent resistance. They are mainly used for hiding, coloring, protection, and corrosion protection. However, limited by low tinting power and saturation, their color performance is often unsatisfactory. Organic pigments have the advantages of bright colors and high tinting power, but their hiding power and weather resistance are often not as good as inorganic pigments.
- the silanol obtained after the hydrolysis of the coupling agent reacts chemically with the hydroxyl groups on the surface of the inorganic pigment, and the organic group of the coupling agent reacts chemically with the active group on the surface of the organic pigment, and the two different types of pigments are stably spliced in the form of covalent bonds.
- the prepared organic-inorganic composite pigment can effectively improve the storage stability, while having the high resistance of inorganic pigments and the high tinting power of organic pigments.
- the selection of coupling agents in the structure of organic-inorganic composite pigments affects the performance of the composite pigment paste obtained in the end.
- the coupling agent is selected from silane coupling agents with side chains modified by epoxy, amino or isocyanate groups, preferably silane coupling agents with side chains modified by epoxy.
- the fineness, viscosity, tinting power and stability of the composite pigment paste are better.
- silane coupling agents such as terminal epoxy-modified silane coupling agents, sulfur-containing silane coupling agents, etc.
- the R1 is selected from epoxy, amino or isocyanate; the R is selected from aliphatic carbon chain; and n is a positive integer of 10-15.
- the R is an alkyl chain.
- the coupling agent is selected from corresponding products of EVONIK, SHINETSU, DOW and other companies, such as silane coupling agent Dynasylan 1146, silane coupling agent Dynasylan VPS 4721, silane coupling agent KBE-9007, alkane coupling agent Dynasylan HYDROSIL 2926 and the like.
- the mass of the coupling agent accounts for 0.3-3% of the total mass of the organic-inorganic composite pigment, preferably 0.5-2.5%, and more preferably 1-2%.
- Organic pigments suitable for the present embodiment are generally required to contain hydroxyl, amino or imino groups, and there is no requirement for their color.
- Exemplary organic pigments include, but are not limited to, one or more selected from C.I. Pigment Yellow 77, 109, 110, 137, 139, 154, 173, 175, 185, 192.
- the mass of the organic pigment accounts for 1-50% of the total mass of the organic-inorganic composite pigment, preferably 25-40%.
- the mass of the organic pigment accounts for the total mass percentage of the organic-inorganic composite pigment, including but not limited to 25-36%, 25-33%, 25-30%, 33-36%, 33-40%, 36-40%, etc.
- the inorganic pigments suitable for the present embodiment have no color requirements.
- Exemplary inorganic pigments include, but are not limited to, one or more selected from iron oxide yellow (C.I. Pigment Yellow 42), bismuth vanadate (C.I. Pigment Yellow 184), titanium nickel yellow (C.I. Pigment Yellow 53), and titanium chrome brown (C.I. Pigment Brown 24).
- the preparation of the organic-inorganic composite pigment comprises the following steps:
- the organic pigment and the inorganic pigment are mixed, a coupling agent is added under stirring, and the mixture is dried at 80-100° C. for 1-2 hours to obtain the organic-inorganic composite pigment.
- exemplary addition amounts of the organic-inorganic composite pigment include, but are not limited to, 45-60%, 45-55%, etc., which may be determined according to the specific type of the pigment.
- the dispersant is an aqueous dispersant.
- exemplary dispersants are selected from one or more of styrene/acrylic acid copolymers, acrylic acid/maleic acid copolymers, acrylic acid/methacrylic acid copolymers, butadiene/acrylic acid copolymers, isobutylene/maleic acid copolymers, diisobutylene/maleic acid copolymers, styrene/maleic acid copolymers, and polyethylene glycol monovinyl ether/maleic acid copolymers.
- the dispersant may come from companies such as BYK, EVONIK, and BASF.
- Exemplary, by weight percentage, the amount of dispersant added to the pigment paste includes but is not limited to 5-30%, 10-20%, 13-18%, etc., which may be determined according to the specific variety of the pigment.
- the wetting agent is selected from one or more of modified alkoxylates, polyether-modified siloxanes, ethoxylated acetylenic glycols or siloxane dual-effect surfactants.
- the wetting agent may be from companies such as BASF and EVONIK.
- Exemplary addition amounts of the wetting agent in the pigment paste include, but are not limited to, 0.2-2%, 1-2%, 1.5-2%, etc., in terms of weight percentage.
- the defoamer is selected from one or more of modified polysiloxane and polymer-based defoamers.
- the defoamer may come from BASF, EVONIK and other companies.
- the amount of defoamer added to the exemplary pigment paste is 0.1-1%, 0.1-0.5%, 0.5-1%, etc.
- the raw material further comprises a fungicide with a mass percentage of 0-3%.
- the fungicide is selected from one or more fungicides, such as from Thor
- the amount of fungicide added can be 0, or can be 0.1-3%, 0.1-1%, 0.1-0.5%, etc.
- a method for preparing the above-mentioned environmentally friendly water-based high-hiding composite pigment paste comprising the following steps:
- the remaining water is added and mixed to obtain the environmentally friendly water-based high-hiding composite pigment paste.
- the machines and equipment used in the above preparation method are general equipment in paint or pigment paste production factories, and there are no complicated processes, so they can be industrialized for large-scale production and have good practicality.
- the environmentally friendly water-based high hiding composite pigment paste is used in water-based topcoat.
- the organic pigment is selected from one or more of C.I. Pigment Yellow 77, 109, 110, 137, 139, 154, 173, 175, 185, 192; the inorganic pigment is selected from one or more of iron oxide yellow (C.I. Pigment Yellow 42), bismuth vanadate (C.I. Pigment Yellow 184), titanium nickel yellow (C.I. Pigment Yellow 53), titanium chrome brown (C.I. Pigment Brown 24)
- Example 1 Composite pigment paste of C.I. Pigment Yellow 110 and C.I. Pigment Yellow 42
- Deionized water A-1, dispersant B, wetting agent C, and defoamer D are sequentially added into the mixing tank, stirred at 800-1000 rpm for 10-20 minutes with a matching mixer, and then slowly added pigment yellow 110-pigment yellow 42 composite pigment E, and gradually increased the mixer speed to 1500-2000 rpm to ensure that the various raw materials are evenly mixed. After all the above raw materials are added, stir for about 30 minutes, sand grind with a sand mill to a fineness of ⁇ 10 microns, add fungicide F, adjust the viscosity with the remaining deionized water A-2, and discharge to obtain a composite pigment paste.
- Example 2 Composite pigment paste of C.I. Pigment Yellow 139 and C.I. Pigment Yellow 184
- Deionized water A-1, dispersant B, wetting agent C, and defoamer D are sequentially added into the mixing tank, stirred at 800-1000 rpm for 10-20 minutes with a matching mixer, and then slowly added pigment yellow 139-pigment yellow 184 composite pigment E, and gradually increased the mixer speed to 1500-2000 rpm to ensure that the various raw materials are evenly mixed. After all the above raw materials are added, stir for about 30 minutes, sand grind with a sand mill to a fineness of ⁇ 10 microns, add fungicide F, adjust the viscosity with the remaining deionized water A-2, and discharge to obtain a composite pigment paste.
- Example 3 Composite pigment paste of C.I. Pigment Yellow 154 and C.I. Pigment Yellow 184
- Deionized water A-1, dispersant B, wetting agent C, and defoamer D are sequentially added into the mixing tank, stirred at 800rpm-1000rpm for 10-20 minutes with a matching mixer, and then slowly added pigment yellow 154-pigment yellow 184 composite pigment E, and gradually increased the mixer speed to 1500-2000rpm to ensure that the various raw materials are evenly mixed. After all the above raw materials are added, stir for about 30 minutes, sand grind with a sand mill to a fineness of ⁇ 10 microns, add fungicide F, adjust the viscosity with the remaining deionized water A-2, and discharge to obtain a composite pigment paste.
- Example 4 Composite pigment paste of C.I. Pigment Yellow 110 and C.I. Pigment Yellow 184
- Deionized water A-1, dispersant B, wetting agent C, and defoamer D are sequentially added into the mixing tank, stirred at 800-1000 rpm for 10-20 minutes with a matching mixer, and then slowly added pigment yellow 110-pigment yellow 184 composite pigment E, and gradually increased the mixer speed to 1500-2000 rpm to ensure that the various raw materials are evenly mixed. After all the above raw materials are added, stir for about 30 minutes, sand grind with a sand mill to a fineness of ⁇ 10 microns, add fungicide F, adjust the viscosity with the remaining deionized water A-2, and discharge to obtain a composite pigment paste.
- the Pigment Yellow 110-Pigment Yellow 42 composite pigment in Example 1 was replaced with a blended pigment of Pigment Yellow 110 and Pigment Yellow 42 (without adding a silane coupling agent), and other conditions remained unchanged to prepare a blended pigment color paste.
- Example 2 The surface treatment agent in Example 2 was replaced with KH-560 (terminated epoxy-modified silane coupling agent) and the other conditions remained unchanged to prepare a composite pigment paste.
- Example 3 The surface treatment agent in Example 3 was replaced with SG-Si 1289 (sulfur-containing silane coupling agent) and the other conditions remained unchanged to prepare a composite pigment paste.
- SG-Si 1289 sulfur-containing silane coupling agent
- Example 4 was repeated, except that, in the preparation of the organic-inorganic composite pigment, the addition amount of C.I. Pigment Yellow 110 was 35 parts, the addition amount of C.I. Pigment Yellow 184 was 20 parts, and the other conditions remained unchanged, to prepare an organic-inorganic composite pigment and a corresponding composite pigment paste.
- the performance of the pigment paste products in the test examples 1-4 and comparative examples 1-4 was tested, and the specific test items were the pigment paste fineness, viscosity, tinting strength and stability tests.
- the fineness test method refers to the national standard GB 1724-79.
- the viscosity test method refers to the national standard GB/T 9269-2009.
- the base material selected for the tinting strength test is a water-based two-component polyurethane white paint, and the tinting strength of the pigment paste before heat storage is used as the benchmark.
- the stability test refers to the national standard GB/T 6753.3-1986.
- the samples are placed in an oven (50 ⁇ 2°C) for 30 days, then taken out and stored at (23 ⁇ 2°C) for 6 hours.
- Visual inspection is performed to see if there is obvious pigment particle sedimentation or flocculation, which may seriously affect the stability.
- ⁇ means no abnormality is observed visually, and
- ⁇ means obvious pigment particle sedimentation, flocculation, etc.
- the changes in fineness, viscosity and tinting strength are compared with those of the samples at room temperature.
- the composite pigment pastes in Examples 1-4 can pass performance tests, including fineness, viscosity, tinting strength and stability tests, and are significantly better than the pigment pastes in Comparative Examples 1-4.
- the composite pigment pastes prepared in Examples 1-4 and Comparative Examples 1-4 were added to water-based DTM varnish, water-based two-component polyurethane varnish and water-based two-component epoxy varnish, respectively, and the amount of pigment paste added was 20% of the total mass of the final coating system.
- the test results are shown in Table 6, wherein the formulas of the water-based DTM coating, water-based two-component polyurethane coating and water-based two-component epoxy coating after adding the composite pigment paste are shown in Tables 7-9 below, respectively.
- test methods are:
- Engineering covering film thickness test method spray gradient film thickness on the black and white grid board, dry it, and test the minimum paint film thickness that can cover the black and white grid.
- floating color in the can There are two types of floating color: floating color in the can and floating color in the dry film.
- the floating color in the can is observed by visual inspection, " ⁇ ” means no abnormality in visual inspection, and " ⁇ ” means floating color is found in visual inspection.
- the floating color of the dry film is tested by finger rubbing experiment, that is, rubbing the semi-dry coating film with fingers, and determining the degree of floating color by the color difference between the paint film in the rubbed area and the original paint film.
- Gloss (60°) is measured according to GB/T 9754.
- the salt spray resistance test is determined according to GB/T 1771-2007.
- the composite pigment paste prepared in the embodiment is added to the above three coating systems, and has good engineering hiding ability, good anti-floating color and floating ability (no floating color in the can is visually observed, and the color difference ⁇ E is less than 0.5), high gloss, good salt spray resistance and water resistance.
- the above performances are significantly better than the performance of the composite pigment paste prepared in the comparative example in the three coating systems.
- the environmentally friendly water-based high-hiding organic-inorganic composite pigment paste provided by the present invention has stable performance and good storage stability, and does not cause instability problems such as coarsening of fineness, increase in viscosity, and decrease in tinting power after hot storage experiments.
- the composite pigment paste prepared by the method is applied to common water-based industrial coatings, showing good compatibility, high hiding, excellent water resistance and salt spray resistance.
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Abstract
一种环保型水性高遮盖复合颜料色浆及其制备方法和应用，所述复合颜料色浆包括如下按质量百分含量计的原料：有机-无机复合颜料40-70wt％；分散剂0.5-40wt％；润湿剂0.2-5wt％；消泡剂0.1-5wt％；水，其中，所述有机-无机复合颜料的组成中包含有机颜料、无机颜料和偶联剂，且所述有机颜料和无机颜料化学接枝在所述偶联剂上。该复合颜料色浆遮盖力强、耐腐蚀能力高、着色力高且环保，其通用于各水性工业涂料中，可用于替换水性工业涂料中铅铬颜料。
Description
本发明涉及水性颜料色浆领域。更具体地，涉及一种环保型水性高遮盖复合颜料色浆及其制备方法和应用。
涂料对被涂物表面起到保护和装饰的作用。其中，颜料作为涂料颜色来源的关键材料，不仅可以赋予涂料丰富多彩的颜色，还可以使涂料具有更好的遮盖力、机械强度及耐腐蚀等性能，是涂料不可或缺的组成部分。在过去的几十年中，铅铬颜料以其鲜艳的颜色、优异的物化性能以及经济性，广泛的应用于涂料领域。然而，铅和铬都是重金属元素，不仅会对环境造成污染，还会对人体造成伤害。基于铅铬颜料的危害，世界卫生组织呼吁到2020年全球禁止使用含铅含铬颜料。而我国颁布的GB 30981-2020《工业防护涂料中有害物质限量》也对涂料中铅、铬含量有明确的限定。鉴于以上原因，铅铬颜料的替代在涂料应用中迫在眉睫。
无机颜料是涂料工业中应用量最大、应用面最广的颜料，具有遮盖力高，耐光牢度、耐气候牢度及耐热稳定性好，耐溶剂性能优良等优点，主要用于遮盖、着色、保护、防腐蚀等。然而，受限于较低的着色力和饱和度，其颜色表现往往不尽如人意。有机颜料具有颜色鲜艳、着色力高的优点，但其遮盖力和耐候性往往不如无机颜料。因此，将无机颜料和有机颜料的优点充分结合起来，是铅铬颜料替代可行的替代方案之一。目前，普遍的做法是使用无机色浆和有机色浆进行调色，但由于无机颜料与有机颜料物理和化学性质间的差异，复配调色常会出现稳定性下降、浮色等问题。有机颜料与无机颜料物理共混再制备成色浆也是常用的方法之一，该方法操作简单，但是由于颜料之间的结合并不牢固，分布不均匀，这样一来对于涂膜的物化性能提升效果有限，同时也易出现浮色发花的问题。
基于以上问题，需要提供一种高性能的环保的有机-无机复合颜料色浆，实现水性工业涂料中铅铬颜料的替代。
发明内容
基于以上事实，本发明的目的在于提供一种环保型水性高遮盖复合颜料色浆及其制备方法和应用，以实现水性工业涂料中铅铬颜料的替代。该复合颜料色浆遮盖力强、耐腐蚀能力高、着色力高、环保通用于各水性工业涂料中。
为达到上述目的，本发明采用下述技术方案：
一方面，本发明提供一种环保型水性高遮盖复合颜料色浆，包括如下按质量百分含量计的原料：
其中，所述有机-无机复合颜料的组成中包含有机颜料、无机颜料和偶联剂，且所述有机颜料和无机颜料化学接枝在所述偶联剂上。
进一步地，所述偶联剂选自环氧基、氨基或异氰酸酯基进行侧链改性的硅烷偶联剂。
进一步地，所述偶联剂的结构式如下式所示：
其中，所述R1选自环氧基、氨基或异氰酸酯基；所述R选自脂肪族碳链；所述n为10-15的正整数。
进一步地，所述有机-无机复合颜料中，有机颜料的质量占所述有机-无机复合颜料总质量的1-50％。
进一步地，所述有机-无机复合颜料中，有机颜料的质量占所述有机-无机复合颜料总质量的25-40％。
进一步地，所述有机-无机复合颜料中，偶联剂的质量占所述有机-无机复合颜料总质量的0.3-3％。
进一步地，所述有机-无机复合颜料中，偶联剂的质量占所述有机-无机复合颜料总质量的1-2％。
进一步地，所述有机-无机复合颜料的制备包括如下步骤：
将有机颜料和无机颜料混合，在搅拌的条件下加入偶联剂，经80-100℃干燥1-2h后得到所述的有机-无机复合颜料。
进一步地，所述原料中还包含质量百分含量为0-3％的杀菌剂。
进一步地，所述分散剂选自苯乙烯/丙烯酸共聚物、丙烯酸/马来酸共聚物、丙烯酸/甲基丙烯酸共聚物、丁二烯/丙烯酸共聚物、异丁烯/马来酸共聚物、二异丁烯/马来酸共聚物、苯乙烯/马来酸共聚物、聚乙二醇单乙烯基醚/马来酸共聚物中的一种或几种。
进一步地，所述润湿剂选自改性烷氧基化物、聚醚改性硅氧烷、乙氧基炔二醇或硅氧烷双效界面活性剂中的一种或几种。
又一方面，本发明提供如上所述的环保型水性高遮盖复合颜料色浆的制备方法，包括如下步骤：
将分散剂、润湿剂和消泡剂与部分水混合，得到混合均匀的混合物；
向所述混合物中加入有机-无机复合颜料，分散均匀后砂磨至细度＜10μm；
加入剩余的水，混匀，得到所述环保型水性高遮盖复合颜料色浆。
又一方面，本发明提供如上所述的环保型水性高遮盖复合颜料色浆在水性工业涂料中的应用。
本发明的有益效果如下：
本发明提供的复合颜料色浆原料中，特定结构的有机-无机复合颜料结合其他组分，
赋予了该复合颜料色浆高的遮盖力、强的着色力；同时，该复合颜料色浆与各水性工业涂料相容性好，不影响涂料的光泽，并可有效提升耐水、耐盐雾、耐腐蚀性等各项物化性能。
为了更清楚地说明本发明，下面结合优选实施例对本发明做进一步的说明。本领域技术人员应当理解，下面所具体描述的内容是说明性的而非限制性的，不应以此限制本发明的保护范围。
根据本发明的一个具体实施方式，提供一种环保型水性高遮盖复合颜料色浆，包括如下按质量百分含量计的原料：
其中，所述有机-无机复合颜料的组成中包含有机颜料、无机颜料和偶联剂，且所述有机颜料和无机颜料化学接枝在所述偶联剂上。
无机颜料是涂料工业中应用量最大、应用面最广的颜料，具有遮盖力高，耐光牢度、耐气候牢度及耐热稳定性好，耐溶剂性能优良等优点，主要用于遮盖、着色、保护、防腐蚀等。然而，受限于较低的着色力和饱和度，其颜色表现往往不尽如人意。有机颜料具有颜色鲜艳、着色力高的优点，但其遮盖力和耐候性往往不如无机颜料。因此，通过添加硅烷偶联剂，利用偶联剂水解后得到的硅羟基与无机颜料表面的羟基发生化学反应，而偶联剂的有机基团与有机颜料表面的活性基团发生化学反应，通过共价键的形式对两种不同类型的颜料实现稳定的拼接。制备的有机-无机复合颜料能有效提高存储稳定性，同时兼具无机颜料高耐性和有机颜料高着色力的性能。
本实施方式中，研究发现有机-无机复合颜料结构中偶联剂的选择影响最终得到的复合颜料色浆的性能，示例性的，所述偶联剂选自环氧基、氨基或异氰酸酯基进行侧链改性的硅烷偶联剂，优选为环氧基侧链改性的硅烷偶联剂。此时，复合颜料色浆细度、粘度、着色力及稳定性等均更好。当采用其他的硅烷偶联剂，如端环氧基改性硅烷偶联剂、含硫硅烷偶联剂等时，得到的复合颜料色浆的细度、粘度、着色力及稳定性等均较差，且相应得到的涂料的性能也较差。
示例性的，所述偶联剂的结构式如下式所示：
其中，所述R1选自环氧基、氨基或异氰酸酯基；所述R选自脂肪族碳链；所述n为10-15的正整数。
在一些具体示例中，所述R为烷基链。
在一些具体示例中，所述偶联剂选自EVONIK、SHINETSU、DOW等公司的相应产品，例如硅烷偶联剂Dynasylan 1146、硅烷偶联剂Dynasylan VPS 4721、硅烷偶联剂KBE-9007、烷偶联剂Dynasylan HYDROSIL 2926等。
示例性的，所述有机-无机复合颜料中，偶联剂的质量占所述有机-无机复合颜料总质量的0.3-3％，优选为0.5-2.5％，更优选为1-2％。
适用于本实施方式的有机颜料一般要求含有羟基、氨基或亚胺基，对其颜色没有要求。示例性的有机颜料包括但不限于选自C.I.颜料黄77、109、110、137、139、154、173、175、185、192中的一种或几种。示例性的，所述有机-无机复合颜料中，有机颜料的质量占所述有机-无机复合颜料总质量的1-50％，优选为25-40％。示例性的，有机颜料的质量占所述有机-无机复合颜料总质量百分含量包括但不限于为25-36％、25-33％、25-30％、33-36％、33-40％、36-40％等。
适用于本实施方式的无机颜料对颜色没要求。示例性的无机颜料包括但不限于选自氧化铁黄(C.I.颜料黄42)、钒酸铋(C.I.颜料黄184)、钛镍黄(C.I.颜料黄53)、钛铬棕(C.I.颜料棕24)中的一种或几种。
示例性的，所述有机-无机复合颜料的制备包括如下步骤：
将有机颜料和无机颜料混合，在搅拌的条件下加入偶联剂，经80-100℃干燥1-2h后得到所述的有机-无机复合颜料。
所述复合颜料色浆中，示例性的有机-无机复合颜料的添加量包括但不限于45-60％、45-55％等，具体可根据颜料的具体品种而定。
本实施方式中，分散剂为水性分散剂。示例性的分散剂选自苯乙烯/丙烯酸共聚物、丙烯酸/马来酸共聚物、丙烯酸/甲基丙烯酸共聚物、丁二烯/丙烯酸共聚物、异丁烯/马来酸共聚物、二异丁烯/马来酸共聚物、苯乙烯/马来酸共聚物、聚乙二醇单乙烯基醚/马来酸共聚物中的一种或几种。所述分散剂可来自BYK、EVONIK、BASF等公司。示例性的，按重量百分含量计，颜料色浆中分散剂的添加量包括但不限于为5-30％、10-20％、13-18％等，具体可根据颜料的具体品种而定。
示例性的，所述润湿剂选自改性烷氧基化物、聚醚改性硅氧烷、乙氧基炔二醇或硅氧烷双效界面活性剂中的一种或几种。所述润湿剂可来自BASF、EVONIK等公司。按重量百分含量计，颜料色浆中润湿剂的示例性的添加量包括但不限于为0.2-2％、1-2％、1.5-2％等。
示例性的，所述消泡剂选自改性聚硅氧烷、聚合物基消泡剂中的一种或几种。所述消泡剂可来自BASF、EVONIK等公司。按重量百分比计，示例性的颜料色浆中消泡剂的添加量为0.1-1％、0.1-0.5％、0.5-1％等。
在一些示例中，所述原料中还包含质量百分含量为0-3％的杀菌剂。所述杀菌剂选自杀真菌剂的一种或几种，例如来自Thor的杀菌剂的添加量可为0，也可为0.1-3％、0.1-1％、0.1-0.5％等。
根据本发明的又一个具体实施方式，提供如上所述的环保型水性高遮盖复合颜料色浆的制备方法，包括如下步骤：
将分散剂、润湿剂和消泡剂与部分水混合，得到混合均匀的混合物；
向所述混合物中加入有机-无机复合颜料，分散均匀后砂磨至细度＜10μm；
加入剩余的水，混匀，得到所述环保型水性高遮盖复合颜料色浆。
上述制备方法中所用机器设备为涂料或颜料色浆生产工厂中的通用设备，也无复杂工序，可以工业化大生产，具有较好的实用性。
根据本发明的又一个具体实施方式，提供如上所述的环保型水性高遮盖复合颜料色浆在水性工业涂料中的应用。
示例性的，所述环保型水性高遮盖复合颜料色浆用于水性面漆中。
以下，结合一些具体实施例对本发明的技术方案进行说明，另外，除非另有说明，所有份数和百分比均以质量计。除非另有说明，使用的所有原料都是市售的。
有机颜料选自C.I.颜料黄77、109、110、137、139、154、173、175、185、192中的一种或几种；无机颜料选自氧化铁黄(C.I.颜料黄42)、钒酸铋(C.I.颜料黄184)、钛镍黄(C.I.颜料黄53)、钛铬棕(C.I.颜料棕24)中的一种或几种
颜料色浆制备的实施例：
实施例1-C.I.颜料黄110与C.I.颜料黄42复合颜料色浆
将20份C.I.颜料黄110颜料与30份C.I.颜料黄42置于搅拌捏合机中混合搅拌，在搅拌过程中缓慢加入所述0.5份硅烷偶联剂Dynasylan 1146，经80-100℃干燥1-2h后得到所述的有机-无机复合颜料(颜料黄110-颜料黄42复合颜料)。
依次将去离子水A-1、分散剂B、润湿剂C、消泡剂D依次投入混合缸中，用配套的搅拌机800rpm-1000rpm搅拌10-20分钟，然后慢慢加入颜料黄110-颜料黄42复合颜料E，逐渐提高搅拌机转速至1500-2000rpm，确保各种原料混合均匀。上述原料全部投入后，搅拌30分钟左右，用砂磨机砂磨至细度<10微米，加入杀菌剂F，用剩余的去离子水A-2调节粘度，出料得到复合颜料色浆。
复合颜料色浆的配方如下表1所示：
表1颜料黄110-颜料黄42色浆的配方
实施例2-C.I.颜料黄139与C.I.颜料黄184复合颜料色浆
将15份C.I.颜料黄139颜料与35份C.I.颜料黄184置于搅拌捏合机中混合搅拌，在搅拌过程中缓慢加入所述1份硅烷偶联剂Dynasylan VPS 4721，经80-100℃干燥1-2h后得到所述的有机-无机复合颜料(颜料黄139-颜料黄184复合颜料)。
依次将去离子水A-1、分散剂B、润湿剂C、消泡剂D依次投入混合缸中，用配套的搅拌机800rpm-1000rpm搅拌10-20分钟，然后慢慢加入颜料黄139-颜料黄184复合颜料E，逐渐提高搅拌机转速至1500-2000rpm，确保各种原料混合均匀。上述原料全部投入后，搅拌30分钟左右，用砂磨机砂磨至细度<10微米，加入杀菌剂F，用剩余的去离子水A-2调节粘度，出料得到复合颜料色浆。
复合颜料色浆的配方如下表2所示：
表2颜料黄139-颜料黄184色浆的配方
实施例3–C.I.颜料黄154与C.I.颜料黄184复合颜料色浆
将15份C.I.颜料黄154颜料与30份C.I.颜料黄184置于搅拌捏合机中混合搅拌，在搅拌过程中缓慢加入所述0.45份硅烷偶联剂KBE-9007，经80-100℃干燥1-2h后得到所述的有机-无机复合颜料(颜料黄154-颜料黄184复合颜料)。
依次将去离子水A-1、分散剂B、润湿剂C、消泡剂D依次投入混合缸中，用配套的搅拌机800rpm-1000rpm搅拌10-20分钟，然后慢慢加入颜料黄154-颜料黄184复合颜料E，逐渐提高搅拌机转速至1500-2000rpm，确保各种原料混合均匀。上述原料全部投入后，搅拌30分钟左右，用砂磨机砂磨至细度<10微米，加入杀菌剂F，用剩余的去离子水A-2调节粘度，出料得到复合颜料色浆。
复合颜料色浆的配方如下表3所示：
表3颜料黄154-颜料黄184色浆的配方
实施例4-C.I.颜料黄110与C.I.颜料黄184复合颜料色浆
将20份C.I.颜料黄110颜料与35份C.I.颜料黄184置于搅拌捏合机中混合搅拌，在搅拌过程中缓慢加入所述0.55份硅烷偶联剂Dynasylan HYDROSIL 2926，经80-100℃干燥1-2h后得到所述的有机-无机复合颜料(颜料黄110-颜料黄184复合颜料)。
依次将去离子水A-1、分散剂B、润湿剂C、消泡剂D依次投入混合缸中，用配套的搅拌机800rpm-1000rpm搅拌10-20分钟，然后慢慢加入颜料黄110-颜料黄184复合颜料E，逐渐提高搅拌机转速至1500-2000rpm，确保各种原料混合均匀。上述原料全部投入后，搅拌30分钟左右，用砂磨机砂磨至细度<10微米，加入杀菌剂F，用剩余的去离子水A-2调节粘度，出料得到复合颜料色浆。
复合颜料色浆的配方如下表4所示：
表4颜料黄110-颜料黄184色浆的配方
对比例1
将实施例1中颜料黄110-颜料黄42复合颜料换成颜料黄110和颜料黄42共混颜料(不添加硅烷偶联剂)，其余条件不变，制备得到共混颜料色浆。
对比例2
将实施例2中表面处理剂换成KH-560(端环氧基改性硅烷偶联剂)，其余条件不变，制备得到复合颜料色浆。
对比例3
将实施例3中表面处理剂换成SG-Si 1289(含硫硅烷偶联剂)，其余条件不变，制备得到复合颜料色浆。
对比例4
重复实施例4，区别在于，有机-无机复合颜料的制备中，C.I.颜料黄110的添加量为35份、C.I.颜料黄184的添加量为20份，其余条件不变，制备得到有机-无机复合颜料及相应的复合颜料色浆。
测试实施例1-4、对比例1-4中颜料色浆产品的性能，具体的测试项目为颜料色浆细度、粘度、着色力及稳定性测试。
相关测试方法如下：
细度测试方法参考国家标准GB 1724-79。
粘度测试方法参考国家标准GB/T 9269-2009。
着色力测试所选基料为一款水性双组分聚氨酯白漆，以热储前的颜料色浆着色力作为基准。
稳定性测试参考国家标准GB/T 6753.3-1986，将样品在烘箱(50±2℃)中放置30天后取出并存放于(23±2℃)条件下6小时，通过目测观察是否出现明显颜料颗粒沉降或絮凝等严重影响稳定性的状况出现，“√”表示目测无异常，“×”表示目测出现明显颜料颗粒沉淀、絮凝等情况，并与常温样品对比细度、粘度及着色力的变化。
本测试中分别对实施例1-4、对比例1-4中颜料色浆按上述方法进行性能测试。测试结果如表5所示：
表5实施例1-4、对比例1-4的颜料色浆热储稳定性测试结果
从表5中可知，实施例1-4中复合颜料色浆能够通过性能测试，包括细度、粘度、着色力及稳定性测试，明显好于对比例1-4中颜料色浆。
复合颜料色浆在水性工业涂料中的应用的实施例：
实施例5
将实施例1-4、对比例1-4制备得到的复合颜料色浆分别加入水性DTM清漆、水性双组分聚氨酯清漆以及水性双组分环氧清漆中，颜料色浆的添加量为最终涂料体系总质量的20％。测试结果如表6所示，其中，加入复合颜料色浆后的水性DTM涂料、水性双组分聚氨酯涂料以及水性双组分环氧涂料的配方分别如下表7-9所示。
其中，相关的测试方法为：
工程遮盖膜厚测试方法：在黑白格板上喷涂梯度膜厚，烘干，测试能够遮住黑白格的最小漆膜厚度。
浮色发花分为罐内浮色和干膜浮色两种。罐内浮色通过目测观察，“√”表示目测无异常，“×”表示目测发现浮色情况。干膜浮色通过指研实验进行测试，即用手指擦拭半干状态下的涂膜，通过磨擦区域的漆膜和原漆膜的颜色差异来确定浮色发花的程度。
光泽(60°)按GB/T 9754测定。
耐盐雾测试按GB/T 1771-2007测定。
耐水按GB/T 1733-1993中甲法规定进行。
表6实施例1-4、对比例1-4的复合颜料色浆配置成水性DTM涂料、水性双组分聚氨酯涂料以及水性双组分环氧涂料后的物性测试结果
表7实施例5中水性DTM涂料的组成配方
表8实施例5中水性双组分聚氨酯涂料的组成配方
表9实施例5中水性双组分环氧涂料的组成配方
从表6中可知，实施例制备得到的复合颜料色浆加入到上述3种涂料体系中，工程遮盖能力好，抗浮色发花能力好(目测罐内无浮色，指研色差ΔE＜0.5)，光泽高、耐盐雾性能以及耐水性能好，以上性能都明显优于对比例制备的复合颜料色浆在3种涂料体系中的表现。
综上可知，本发明提供的环保型水性高遮盖有机-无机复合颜料色浆性能稳定，储存稳定性好，经热储实验不会发生细度返粗、粘度上升、着色力下降等不稳定性问题。同时，该方法制备的复合颜料色浆应用于常见的水性工业涂料中，表现出良好的相容性，高遮盖、优异的耐水性和耐盐雾性能。
显然，本发明的上述实施例仅仅是为清楚地说明本发明所作的举例，而并非是对本发明的实施方式的限定，对于所属领域的普通技术人员来说，在上述说明的基础上还可以做出其它不同形式的变化或变动，这里无法对所有的实施方式予以穷举，凡是属于本发明的技术方案所引伸出的显而易见的变化或变动仍处于本发明的保护范围之列。
Claims (10)
- 一种环保型水性高遮盖复合颜料色浆，其特征在于，包括如下按质量百分含量计的原料：
其中，所述有机-无机复合颜料的组成中包含有机颜料、无机颜料和偶联剂，且所述有机颜料和无机颜料化学接枝在所述偶联剂上。 - 根据权利要求1所述的环保型水性高遮盖复合颜料色浆，其特征在于，所述偶联剂选自环氧基、氨基或异氰酸酯基进行侧链改性的硅烷偶联剂。
- 根据权利要求2所述的环保型水性高遮盖复合颜料色浆，其特征在于，所述偶联剂的结构式如下式所示：
其中，所述R1选自环氧基、氨基或异氰酸酯基；所述R选自脂肪族碳链；所述n为10-15的正整数。 - 根据权利要求1-3任一项所述的环保型水性高遮盖复合颜料色浆，其特征在于，所述有机-无机复合颜料中，有机颜料的质量占所述有机-无机复合颜料总质量的1-50％，优选为25-40％；偶联剂的质量占所述有机-无机复合颜料总质量的0.3-3％，优选为1-2％。
- 根据权利要求1所述的环保型水性高遮盖复合颜料色浆，其特征在于，所述有机-无机复合颜料的制备包括如下步骤：将有机颜料和无机颜料混合，在搅拌的条件下加入偶联剂，经80-100℃干燥1-2h后得到所述的有机-无机复合颜料。
- 根据权利要求1所述的环保型水性高遮盖复合颜料色浆，其特征在于，所述原料中还包含质量百分含量为0-3％的杀菌剂。
- 根据权利要求1所述的环保型水性高遮盖复合颜料色浆，其特征在于，所述分散剂选自苯乙烯/丙烯酸共聚物、丙烯酸/马来酸共聚物、丙烯酸/甲基丙烯酸共聚物、丁二烯/丙烯酸共聚物、异丁烯/马来酸共聚物、二异丁烯/马来酸共聚物、苯乙烯/马来酸共聚物、聚乙二醇单乙烯基醚/马来酸共聚物中的一种或几种。
- 根据权利要求1所述的环保型水性高遮盖复合颜料色浆，其特征在于，所述润湿剂选自改性烷氧基化物、聚醚改性硅氧烷、乙氧基炔二醇或硅氧烷双效界面活性剂中的一种或几种。
- 如权利要求1-8任一项所述的环保型水性高遮盖复合颜料色浆的制备方法，其特 征在于，包括如下步骤：将分散剂、润湿剂和消泡剂与部分水混合，得到混合均匀的混合物；向所述混合物中加入有机-无机复合颜料，分散均匀后砂磨至细度＜10μm；加入剩余的水，混匀，得到所述环保型水性高遮盖复合颜料色浆。
- 如权利要求1-8任一项所述的环保型水性高遮盖复合颜料色浆在水性工业涂料中的应用。
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| CN114316686A (zh) * | 2020-09-29 | 2022-04-12 | 立邦涂料（中国）有限公司 | 一种颜料制备物及其制备方法及应用 |
| CN115304934A (zh) * | 2022-08-22 | 2022-11-08 | 深圳力合通科技有限公司 | 一种高性能环保彩色复合颜料的制备方法 |
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| DE19821665A1 (de) * | 1997-05-28 | 1998-12-03 | Basf Ag | Compositpigmente auf Basis von polyalkylenpolyaminmodifizierten nanopartikulären Metalloxiden und anionischen Farbstoffen |
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