CN104710923A - Preparation method of non-benzene low-odor/odor-free scratch-resistant polyurethane woodware matte black finishing paint - Google Patents
Preparation method of non-benzene low-odor/odor-free scratch-resistant polyurethane woodware matte black finishing paint Download PDFInfo
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- CN104710923A CN104710923A CN201310689502.5A CN201310689502A CN104710923A CN 104710923 A CN104710923 A CN 104710923A CN 201310689502 A CN201310689502 A CN 201310689502A CN 104710923 A CN104710923 A CN 104710923A
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- 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
- C09D175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
- C08G18/4288—Polycondensates having carboxylic or carbonic ester groups in the main chain modified by higher fatty oils or their acids or by resin acids
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/77—Polyisocyanates or polyisothiocyanates having heteroatoms in addition to the isocyanate or isothiocyanate nitrogen and oxygen or sulfur
- C08G18/78—Nitrogen
- C08G18/79—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates
- C08G18/791—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates containing isocyanurate groups
- C08G18/792—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates containing isocyanurate groups formed by oligomerisation of aliphatic and/or cycloaliphatic isocyanates or isothiocyanates
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/77—Polyisocyanates or polyisothiocyanates having heteroatoms in addition to the isocyanate or isothiocyanate nitrogen and oxygen or sulfur
- C08G18/78—Nitrogen
- C08G18/79—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates
- C08G18/791—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates containing isocyanurate groups
- C08G18/795—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates containing isocyanurate groups formed by oligomerisation of mixtures of aliphatic and/or cycloaliphatic isocyanates or isothiocyanates with aromatic isocyanates or isothiocyanates
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- 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
- C09D17/005—Carbon black
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- 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
- C09D7/45—Anti-settling agents
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- 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
- C09D7/47—Levelling agents
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- 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
- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
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- 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
- C09D7/65—Additives macromolecular
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Abstract
The invention relates to a preparation method of a non-benzene low-odor/odor-free type scratch-resistant polyurethane woodware matte black finishing paint composed of a component A and a component B with the weight ratio of the component A to the component B of 1:0.5; the component A is composed of a non-benzene low-odor/odor-free type scratch-resistant alkyd resin, an extinction powder, a dispersing agent, a carbon black color paste, a modified levelling agent, a defoamer, an anti-settling agent and a solvent; the component B is a non-benzene curing agent with a TDI trimer, an HDI trimer or an addition product as a main component. The prepared matte black finishing paint does not contain aromatic hydrocarbon, aldehyde ketone or heavy metals, and a paint film has no odor after 48 hours after spraying; the prepared matte black finishing paint is not precipitated when stored, is high in solid content, low in viscosity, good in levelling performance, capable of forming a thick film at one step without sagging, soft in hand feeling, full and exquisite, solemn, hard and soft, and capable of generating a mirror-surface-like full decorative effect, brings elegance and comfort for people, and conforms to the modern aesthetic view so as to be popular to the market and consumers; and the matte black finishing paint is widely applied to the surfaces of woodware, metals, plastics and other products for protection and decoration.
Description
Technical field
The present invention relates to a kind of preparation method of two component polyurethane matt black finish for woodware, particularly relate to a kind of environmental protection without the low clean taste type scratch resistance two component polyurethane matt black finish for woodware of benzene.
Background technology
Along with the raising of people's material and cultural life, human consumer requires also more and more higher to the painting effect of furniture, thus has driven the quick growth of domestic woodwork coating.The painting effect of furniture surface will directly affect the selection of human consumer to furniture, and on furniture Coating Market, dumb light wood lacquer occupies very big market share.The requirement of wood lacquer market to painting huge is now more and more higher, dragon its be that woodenware urethane (PU) paints excellent combination property, human consumer uses extensively, but product exists many weak points, and as turned white, bubbling, delamination, not scratch resistance, ghost, impression of the hand not easily disappear.These problems puzzlement producer and engineering technical personnel, some problem fails to solve even for a long time.Develop the high-grade polyurethane matte wood lacquer of a kind of resistance to marring necessary to the demand meeting market.Along with day by day strict to the attention of environmental protection and various countries' environmental regulation of people, the manufacturer of coating and coating user particularly pay attention to goods smell after the environmental requirement of coating, organic solvent and application.
In suite room furniture field of coating, a difficult problem of puzzlement industry is that furniture is delivered to when installing in terminal client man and reflected that smell is large, and pungent unpleasant, many customer requirements are returned goods or exchanged goods.In the coating process of furniture, after the abnormal and application of the smell of working-yard, furniture smell is two kinds of different states.The former be different workmen to the sensitivity of different organic solvents because different personnel cause working-yard smell to be complained to the odor type of different solvents and irritating smell sensory difference, this just can be dealt with problems by the different thinner of apolegamy; The latter is uncomfortable property smell the having the greatest impact to client that after application, dried coating film is residual after 48 hours, therefore develops a kind of necessary to the demand meeting market without the low clean taste type scratch resistance two component polyurethane matt black finish for woodware of benzene.
Summary of the invention
The present invention select hydroxyl value > 120mgKOH/g without the low clean taste type scratch resistance Synolac of benzene, this resin contains rigid molecular structure, have that scratch resistance, hardness are high, the feature such as quick-drying, wear-resisting, color inhibition, containing more primary hydroxyl in resin structure, sterically hindered little, be conducive to being cross-linked into reticulated structure with NCO in solidifying agent, improve film performance; And second-order transition temperature is high, be conducive to solvent release, accelerate the convection current of film internal solvent and the increase of top layer viscosity, reduce smell; Cause flatting silica to be detained more, consumption is few simultaneously, and eliminate optical property is good, good leveling property; And this resin without benzene without ketone, good leveling property, thus improve the gloss of film, transparency, fullness ratio and anti-scratch performance.
Flatting silica of the present invention selects silicon-dioxide through Lasaxing Oilfield and organic wax powder, and the photoextinction of silicon-dioxide is primarily of decisions such as voidage, size, surface treatment methods.Under equal conditions the particle diameter of silicon-dioxide is larger, the larger photoextinction of voidage is better; The flatting silica that the present invention chooses, its particle diameter is little, even particle size distribution, and voidage is large, and refraction coefficient is close with resin, and flatting efficiency is high, and film transparency is good, is easy to dispersion, and suspension is good, and viscosity increase is very little, and feel is fine and smooth, does not affect recoatability.
Dispersion agent of the present invention selects the copolymer dispersant of modified block structure.
Modified siloxane type defoamer selected by defoamer of the present invention, effectively can eliminate bubble and can not produce again surface atomizing and shrinkage cavity phenomenon.
The present invention selects chelate modified flow agent or silicon-oxygen polymer flow agent, unstable bubble, can provide excellent levelling property again can froth breaking.Due to the special role of titanic acid ester group, greatly improve the long wave levelling of paint film, eliminate dry rear appearance " large wave " phenomenon of paint film, make paint film reach mirror effect.Because titanic acid ester has close organic phase, close inorganic phase specific groups, can wets out pigments and ground quickly and effectively, improve wettability, the defoaming of paint film, thus make paint film have excellent planeness and dry after not easily produce advantages such as sinking.And silicon-oxygen polymer flow agent, can reduce the surface tension of paint film, antiskid is felt well good hand touch, improves resistance to marring, does not affect recoatability and ply adhesion, without ghost.
In order to solve technical problem recited above, the present invention takes following technical scheme: the present invention relates to a kind of without the low clean taste type scratch-resistant polyurethane matt black finish for woodware of benzene, be made up of resin paint first component and solidifying agent second component, the weight proportion of the first and second components is 1:0.5; Described resin paint first component comprises without the low clean taste type scratch resistance Synolac 40% ~ 60% of benzene, flatting silica 3% ~ 6%, dispersion agent 0.3% ~ 1%, carbon black color slurry 20% ~ 40%, modification flow agent 0.1% ~ 0.5%, defoamer 0.1% ~ 0.5%, anti-settling agent 0.5% ~ 3% and solvent 5% ~ 15%; Described solidifying agent second component comprises TDI-HDI mixed trimer or TDI/TMP affixture 30 ~ 40%, HDI tripolymer 25 ~ 35% and solvent 25 ~ 35%.
Wherein, Synolac selects hydroxyl value >=120mgKOH/g, acid number < 10mgKOH/g without the low clean taste type scratch resistance Synolac of benzene.
Carbon black color slurry selects the solvent-borne type carbon black color slurry of fineness≤10 μ.
Flatting silica selects the one of silicon-dioxide through Lasaxing Oilfield and organic wax powder.
Dispersion agent selects the copolymer dispersant of modified block structure.
Modification flow agent selects one or its combination of titanic acid ester modified organic silicon flow agent, titanic acid ester modified polyacrylate flow agent, organosilicon-modified acrylic flow agent, fluorin modified crylic acid flow agent, silicon-oxygen polymer flow agent.
Defoamer selects one or its combination of modified siloxane defoamer, polyacrylic ester defoamer.
Anti-settling agent select through dimethyldichlorosilane(DMCS) surface-treated hydrophobic type fumed silica [, the one of modified urea polymkeric substance, polyamide wax.
Solvent selects N-BUTYL ACETATE, vinyl acetic monomer, 2-butyl acetate, dimethyl cyclohexane, PMA, DBE, HDBE, the one of hydrogenation dearomatization D40 solvent or its combination.
Carbon black color slurry of the present invention comprises carbon black 10 ~ 25%, without the low clean taste type scratch resistance Synolac 35 ~ 50% of benzene, carbon black color slurry dispersion agent 6 ~ 15%, defoamer 0.2 ~ 0.5%, anti-settling agent 0.5 ~ 2% and solvent 10 ~ 30%.
Carbon black selects Mongul-L, REGAL400R, Monarch1300 or Monarch900 of Cabot, the Specialbiack 4 of Degussa, Special biack 6, Special biack 550, FW18, FW285 or FW200, MA7, MA100 or #40 of Mitsubishi Chemical, Raven3500, Raven1255 or Raven3600 of Columbian Chemical, and the one of other high-carbon black pigment.
Carbon black color slurry dispersion agent selects the block macromolecular multipolymer containing pigment affinity groups, especially selects controlled free-radical to synthesize the macromolecule dispersing agent of (CPT), as
4310,
4320, the one of DISPERBYK-2000, DISPERBYK-2001, DISPERBYK-2020, DISPERBYK-2025, DISPERBYK-2026 or its combination.
The present invention proposes a kind of preparation method without the anti-zoned polyurethane matt black finish for woodware carbon black color slurry of the low clean taste type of benzene, its preparation technology is as follows: add mixed solvent by formulation weight than in dispersion bucket, without the low clean taste type scratch resistance Synolac of benzene, carbon black dispersant stirs, slowly add carbon black powder, then at the high shear 45 ~ 60min of 1000 ~ 1200r/min, arrive sand mill circular grinding again 4 ~ 6 times, until the fineness particle diameter of mill base reaches requirement≤10 μ, moving on to paint mixing bucket froth breaking adjusts sticky, filters and packages obtained solvent-borne type carbon black color slurry.
The present invention proposes a kind of preparation method without the low clean taste type scratch-resistant polyurethane matt black finish for woodware of benzene, its preparation technology is as follows: by formulation weight ratio, partial solvent is added in dispersion bucket, add without the low clean taste type scratch resistance Synolac of benzene, mixed solvent stirring and dissolving even, add flatting silica, dispersion agent, high speed dispersion 30 ~ 40min, carbon black color slurry, flow agent, defoamer, anti-settling agent, solvent is added under stirring at low speed, the good viscosity of stirring and adjusting, filters and packages namely obtained a kind of without the low clean taste type scratch-resistant polyurethane matt black finish for woodware of benzene.
The present invention obtain without the low clean taste type scratch-resistant polyurethane matt black finish for woodware aromatic free of benzene, containing aldehyde ketone, not containing heavy metal, the smell of coating film forming solvent after 48 hours does not remain, and is that a kind of environmental protection is without the low clean taste type polyurethane wood lacquer of benzene; Do not precipitate when storing, high-solid lower-viscosity, good leveling property, one-pass film-forming is thick and do not produce sagging, have soft, the plentiful exquisiteness of feel, serious, hard and soft decorative effect crowded, plentiful as minute surface mutually, to the sensation that a kind of gracefulness of people is comfortable, adapt to modern Aesthetic View, very by the favor in market and liking of client.Be widely used in the surface of the goods such as woodenware, metal, plastics, be used as protection decoration.
Embodiment
Embodiment 1:
By formulation weight than dispersion bucket in add 27.5 parts of mixed solvents, add 70% admittedly contain without the low clean taste type scratch resistance Synolac 48 parts of benzene, add
4320 carbon black dispersants 10 parts stir, slowly add 15 parts of spy 4 carbon blacks, defoamer 0.2 part, anti-settling agent 0.3 part, then at the high shear 45 ~ 60min of 1000 ~ 1200r/min, arrive horizontal sand mill circular grinding again 4 ~ 6 times, until the fineness particle diameter of mill base reaches requirement≤10 μ, move on to paint mixing bucket froth breaking and adjust sticky, filter and package obtained solvent-borne type carbon black color slurry.
Embodiment 2:
Mixed solvent 16 parts is added than in dispersion bucket by formulation weight, add 70% admittedly contain without the low clean taste type scratch resistance Synolac 46 parts of benzene, stir, add flatting silica 5 parts, dispersion agent 0.5 part again, high speed dispersion 30 ~ 40min, under stirring at low speed, add carbon black color slurry 30 parts, the organosilicon chelating flow agent 0.3 part of titanic acid ester modification, modified siloxane defoamer 0.2 part, polyamide wax 2 parts, stir qualified after testing after filter and package namely obtained without the low clean taste type scratch-resistant bicomponent polyurethane carpentry matt black flour paint first component of benzene.
Embodiment 3:
In dispersion bucket, add TDI/TMP affixture 40 parts, HDI tripolymer 30 parts, mixed solvent 30 parts stir, filter and package namely obtained without the low clean taste type scratch-resistant bicomponent polyurethane carpentry matt black flour paint second component of benzene after qualified after testing.
According to first component: second component=1:0.5 proportioning paint, add thinner and be transferred to the viscosity that can spray or brush.
According to relevant national standard, detect the performance without the low clean taste type scratch-resistant polyurethane matt black finish for woodware of benzene that the present invention obtains, test result is as shown in table 1.
Table 1 is without the low clean taste type scratch-resistant polyurethane matt black finish for woodware the performance test results of benzene
| Test event | Test result |
| Paint film appearance | Dumb light, black |
| Surface drying | 24min |
| Do solid work | 24h |
| Pencil hardness | 2H |
| Sticking power | 1 grade |
| Snappiness | 2mm |
| Gloss | 35～50% |
| Fullness ratio | Good |
| Feel | Good |
| Levelling property | Excellent |
| Scratch resistant | Good |
| Recoatability | Good |
| Sag resistance | Good, not sagging |
| Triphen burst size 1. | ≤2.6mg/m 3 |
| TVOC burst size 2. | ≤15mg/m 3 |
| Free aldehyde burst size 3. | ≤0.2mg/m 3 |
| Heavy metal content | ND |
| TDI, HDI content summation | ≤0.4% |
| Fatty acid content | ≤1.6% |
| Halohydrocarbon content | ≤0.1% |
| Film smell | Have no irritating odor after 48h |
Note: 1. ~ be 3. paint film test plate (panel) dry 48h in normal conditions behind spraying two road, be discharged into harmful substance contents measured in air by the method test paint film of regulation.
Although the present invention has been explained in detail and has quoted embodiment as proof, for those of ordinary skill in the art, the various schemes obviously can made according to above-mentioned explanation, amendment and change, within the scope that all should be included in claim.
Claims (10)
1., without the low clean taste type scratch-resistant polyurethane matt black finish for woodware of benzene, it is characterized in that: be made up of resin paint first component and solidifying agent second component, the weight proportion of the first and second components is 1:0.5; Described resin paint first component comprises without the low clean taste type scratch resistance Synolac 40% ~ 60% of benzene, flatting silica 3% ~ 6%, dispersion agent 0.3% ~ 1%, carbon black color slurry 20% ~ 40%, modification flow agent 0.1% ~ 0.5%, defoamer 0.1% ~ 0.5%, anti-settling agent 0.5% ~ 3% and solvent 5% ~ 15%; Described solidifying agent second component comprises TDI-HDI mixed trimer or TDI/TMP affixture 30 ~ 40%, HDI tripolymer 25 ~ 35% and solvent 25 ~ 35%.
2. as claimed in claim 1 a kind of without the low clean taste type scratch-resistant polyurethane matt black finish for woodware of benzene, it is characterized in that: described flatting silica selects the one of silicon-dioxide through Lasaxing Oilfield and organic wax powder.
3. as claimed in claim 1 a kind of without the low clean taste type scratch-resistant polyurethane matt black finish for woodware of benzene, it is characterized in that: described carbon black color slurry selects the solvent-borne type carbon black color slurry of fineness≤10 μ; Comprise carbon black 10 ~ 25%, without the low clean taste type scratch resistance Synolac 35 ~ 50% of benzene, carbon black color slurry dispersion agent 6 ~ 15%, defoamer 0.2 ~ 0.5%, anti-settling agent 0.5 ~ 2% and solvent 10 ~ 30%.
4. as claimed in claim 1 a kind of without the low clean taste type scratch-resistant polyurethane matt black finish for woodware of benzene, it is characterized in that: described modification flow agent selects one or its combination of titanic acid ester modified organic silicon flow agent, titanic acid ester modified polyacrylate flow agent, organosilicon-modified acrylic flow agent, fluorin modified crylic acid flow agent, silicon-oxygen polymer flow agent.
5. the one as described in claim 1,3, without the low clean taste type scratch-resistant polyurethane matt black finish for woodware of benzene, is characterized in that: described defoamer selects one or its combination of modified siloxane defoamer, polyacrylic ester defoamer.
6. the one as described in claim 1,3, without the low clean taste type scratch-resistant polyurethane matt black finish for woodware of benzene, is characterized in that: the one through dimethyldichlorosilane(DMCS) surface-treated hydrophobic type fumed silica, modified urea polymkeric substance, polyamide wax selected by described anti-settling agent.
7. the one as described in claim 1,3, without the low clean taste type scratch-resistant polyurethane matt black finish for woodware of benzene, is characterized in that: described solvent selects N-BUTYL ACETATE, vinyl acetic monomer, 2-butyl acetate, dimethyl cyclohexane, PMA, DBE, HDBE, the one of hydrogenation dearomatization D40 solvent or its combination.
8. the one as described in claim 1,3 is without the low clean taste type scratch-resistant polyurethane matt black finish for woodware of benzene, it is characterized in that: described carbon black selects Mongul-L, REGAL400R, Monarch1300 or Monarch900 of Cabot, the Specialbiack 4 of Degussa, Special biack 6, Special biack 550, FW18, FW285 or FW200, MA7, MA100 or #40 of Mitsubishi Chemical, Raven3500, Raven1255 or Raven3600 of Columbian Chemical, and the one of other high-carbon black pigment.
9. the one as described in claim 1,3 is without the low clean taste type scratch-resistant polyurethane matt black finish for woodware of benzene, it is characterized in that: described carbon black color slurry dispersion agent selects the block macromolecular multipolymer containing pigment affinity groups, especially controlled free-radical is selected to synthesize the macromolecule dispersing agent of (CPT), as
4310,
4320, the one of DISPERBYK-2000, DISPERBYK-2001, DISPERBYK-2020, DISPERBYK-2025, DISPERBYK-2026 or its combination.
10. a kind of preparation method without the low clean taste type scratch-resistant polyurethane matt black finish for woodware of benzene as claimed in claim 1, it is characterized in that: by formulation weight ratio, partial solvent is added in dispersion bucket, add without the low clean taste type scratch resistance Synolac of benzene, mixed solvent stirring and dissolving even, add flatting silica, dispersion agent, high speed dispersion 30 ~ 40min, carbon black color slurry, flow agent, defoamer, anti-settling agent, solvent is added under stirring at low speed, the good viscosity of stirring and adjusting, filters and packages namely obtained a kind of without the low clean taste type scratch-resistant polyurethane matt black finish for woodware of benzene.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109895474A (en) * | 2019-01-16 | 2019-06-18 | 浙江道明光电科技有限公司 | A kind of dumb light coloring aluminum-plastic composite membrane |
Citations (5)
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