CN104710929A - Preparation method of environmental-protection odorless scratch-resistant polyurethane woodenware bright black finish - Google Patents
Preparation method of environmental-protection odorless scratch-resistant polyurethane woodenware bright black finish Download PDFInfo
- Publication number
- CN104710929A CN104710929A CN201310684274.2A CN201310684274A CN104710929A CN 104710929 A CN104710929 A CN 104710929A CN 201310684274 A CN201310684274 A CN 201310684274A CN 104710929 A CN104710929 A CN 104710929A
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- clean taste
- carbon black
- solvent
- taste type
- resistant polyurethane
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Classifications
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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
-
- 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
- C09D17/005—Carbon black
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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
- C09D7/65—Additives macromolecular
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Abstract
The invention relates to a preparation method of an environmental-protection odorless scratch-resistant polyurethane woodenware bright black finish. The finish is composed of two components, namely a first component and a second component. Weight ratio of the first component to the second component is 1:0.5. The first component is composed of odorless scratch-resistant alkyd resin, acrylic resin, keto-aldehyde resin, carbon black color paste, an auxiliary agent and a solvent. The second component is composed of a non-benzene curing agent with TDI, HDI trimer or adduct as main content. The prepared bright black finish contains no aromatic hydrocarbons, aldehydes, ketones or heavy metal, and a film formed after the finished has been sprayed for 48 hours has no odor. The finish will not deposit when stored, has good levelling property and will not cause runs or sags. The film has jet-like luster, is crystal clear, is thick, has texture, has a smooth bright mirror-like decorative effect, can create a fresh, simple but elegant, concise and quiet space, brings a relaxed and happy unique enjoyment, and accords with aesthetic viewpoints of modern people. The finish provided by the invention is welcome in the market and popular with clients. The finish is widely applied in surface protection and decoration for products such as woodenware, metal, plastic and the like.
Description
Technical field
The present invention relates to a kind of preparation method of two component polyurethane woodenware light black flour paint, particularly relate to a kind of environmental protection clean taste type scratch resistance two component polyurethane woodenware light black flour paint.
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, light wood lacquer also occupies the suitable 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, as turned white, bubbling, delamination, not scratch resistance, heat rash appears, 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 a kind of resistance to marring high-grade urethane light wood lacquer 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 light wood lacquer of benzene.
Summary of the invention
The present invention selects the clean taste type scratch resistance Synolac of hydroxyl value > 120mgKOH/g, 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, thus the gloss of raising film, transparency, fullness ratio and anti-scratch performance; And this resin containing vegetables oil (lipid acid), without benzene without ketone, therefore toxicity is low, and the wood lacquer made dried coating film after application reaches clean taste effect after 48 hours.
The present invention selects aromatic free high hydroxyl value Hydroxylated acrylic resin, can improve the gloss of paint film, fullness ratio, hardness, anti scuffing performance, improve the performance such as rate of drying and sag prevention simultaneously.
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 environmental protection clean taste type scratch-resistant polyurethane woodenware light black flour paint, 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 clean taste type scratch resistance Synolac 40% ~ 60%, acrylic resin 8% ~ 20%, aldehyde ketone resin 4% ~ 10%, carbon black color slurry 15% ~ 40%, modification flow agent 0.1% ~ 0.5%, defoamer 0.1% ~ 0.5%, anti-settling agent 0.1% ~ 1% 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%.
Acrylic resin selects the Hydroxylated acrylic resin of hydroxyl value > 100mgKOH/g, acid number < 5mgKOH/g aromatic free solvent.
Aldehyde ketone resin selects the aldehyde ketone resin with high brightness, high-light-fastness, aromatic free solvent of hydroxyl value >=110mgKOH/g, free formaldehyde content≤0.3%.
Carbon black color slurry selects the solvent-borne type carbon black color slurry of fineness≤10 μ; Comprise 10 ~ 25% carbon blacks, the clean taste Synolac of 35 ~ 50% clean taste type scratch resistance, 6 ~ 15% carbon black color slurry dispersion agents, 0.2 ~ 0.5% defoamer, 0.5 ~ 2% anti-settling agent and 10 ~ 30% solvents.
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.
The one through dimethyldichlorosilane(DMCS) surface-treated hydrophobic type fumed silica, modified urea polymkeric substance selected by anti-settling agent.
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 selects Mongul-L, REGAL400R, Monarch1300 or Monarch900 of Cabot, Specialbiack4, Special biack6, Special biack550, FW18, FW285 or FW200 of Degussa, 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
the one of DISPERBYK-2000, DISPERBYK-2001, DISPERBYK-2020, DISPERBYK-2025, DISPERBYK-2026 or its combination.
The present invention proposes the preparation method of a kind of environmental protection clean taste type anti-zoned urethane woodenware light black flour paint carbon black color slurry, its preparation technology is as follows: add mixed solvent by formulation weight than in dispersion bucket, clean taste type scratch resistance Synolac, 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 the preparation method of a kind of environmental protection clean taste type scratch-resistant polyurethane woodenware light black flour paint, its preparation technology is as follows: by formulation weight ratio, partial solvent is added in Scattered Kettle, add clean taste type scratch resistance Synolac, acrylic resin, aldehyde ketone resin stir, under agitation add carbon black color slurry, flow agent, defoamer, anti-settling agent, mixed solvent, the good viscosity of stirring and adjusting, filters and packages i.e. obtained a kind of environmental protection clean taste type scratch-resistant polyurethane woodenware light black flour paint.
The environmental protection that the present invention obtains clean taste type scratch-resistant polyurethane woodenware light black flour paint aromatic free, containing aldehyde ketone, not containing heavy metal, coating film forming is odorlessness after 48 hours, is a kind of environmental protection clean taste type polyurethane wood lacquer; Do not precipitate when storing, high-solid lower-viscosity, good leveling property, one-pass film-forming is thick and do not produce sagging, there is gloss of film high, perception as jet, glittering and translucent, paint film is abundant texture, the decorative effect as smooth, as bright as a sixpence, build pure and fresh, plain, succinct, a quiet space, bring you relaxed and joyful uniqueness to enjoy, adapt to the Aesthetic View of modern, very by the favor in market and liking of client.The surface protection decoration being widely used in the goods such as woodenware, metal, plastics is used.
Embodiment
Embodiment 1:
Add 25.5 parts of mixed solvents by formulation weight than in dispersion bucket, add the 70% clean taste type scratch resistance Synolac 50 parts admittedly contained, add
carbon black dispersant 12 parts stirs, slowly add 12 parts of Special biack6 carbon blacks, defoamer 0.2 part, anti-settling agent 0.3 part, then at the high shear 45 ~ 60min of 1000 ~ 1200r/min, then horizontal sand mill circular grinding 4 ~ 6 times are arrived, 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.
Embodiment 2:
In paint mixing bucket, add the 70% clean taste type scratch resistance Synolac 40 parts admittedly contained, 70% Hydroxylated acrylic resin admittedly contained 15 parts, 60% aldehyde ketone resin admittedly contained 6 parts, mixed solvent 10 parts of stirring and dissolving are even, the carbon black color slurry 28 parts of above-mentioned milled is added under middling speed, add titanic acid ester modified organic silicon flow agent 0.3 part, fluorin modified crylic acid flow agent 0.2 part, modified siloxane defoamer 0.2 part, 0.3 part, modified urea polymkeric substance under low speed, stir qualified after testing after filter and package i.e. obtained clean taste type scratch-resistant bicomponent polyurethane woodenware light black flour paint first component.
Embodiment 3:
In dispersion bucket, add TDI/TMP affixture 40 parts, HDI tripolymer 30 parts, mixed solvent 30 parts stir, after qualified after testing, filter and package i.e. obtained clean taste type scratch-resistant bicomponent polyurethane woodenware light black flour paint second component.
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 of the environmental protection clean taste type scratch-resistant polyurethane woodenware light black flour paint that the present invention obtains, test result is as shown in table 1.
Table 1 environmental protection clean taste type scratch-resistant polyurethane woodenware light black flour paint the performance test results
| Test event | Test result |
| Paint film appearance | Black, light are level and smooth as mirror |
| Surface drying | 24min |
| Do solid work | 22h |
| Pencil hardness | 2H |
| Sticking power | 1 grade |
| Snappiness | 2mm |
| Gloss | 102～105% |
| Fullness ratio | Good |
| Feel | Good |
| Levelling property | Excellent |
| Scratch resistant | Good |
| Recoatability | Good |
| Sag resistance | Good, not sagging |
| Triphen burst size 1. | ≤1.6mg/m 3 |
| TVOC burst size 2. | ≤12mg/m 3 |
| Free aldehyde burst size 3. | ≤0.1mg/m 3 |
| Heavy metal content | ND |
| TDI, HDI content summation | ≤0.4% |
| Fatty acid content | ≤0.5% |
| Halohydrocarbon content | ≤0.1% |
| Film smell | Odorlessness 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. an environmental protection clean taste type scratch-resistant polyurethane woodenware light black flour paint, 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 clean taste type scratch resistance Synolac 40% ~ 60%, acrylic resin 8% ~ 20%, aldehyde ketone resin 4% ~ 10%, carbon black color slurry 15% ~ 40%, modification flow agent 0.1% ~ 0.5%, defoamer 0.1% ~ 0.5%, anti-settling agent 0.1% ~ 1% 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%; Described acrylic resin selects the Hydroxylated acrylic resin of hydroxyl value > 100mgKOH/g, acid number < 5mgKOH/g aromatic free solvent; Described aldehyde ketone resin selects the aldehyde ketone resin with high brightness, high-light-fastness, aromatic free solvent of hydroxyl value >=110mgKOH/g, free formaldehyde content≤0.3%.
2. a kind of environmental protection as claimed in claim 1 clean taste type scratch-resistant polyurethane woodenware light black flour paint, 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%, clean taste type scratch resistance Synolac 35 ~ 50%, carbon black color slurry dispersion agent 6 ~ 15%, defoamer 0.2 ~ 0.5%, anti-settling agent 0.5 ~ 2% and solvent 10 ~ 30%.
3. a kind of environmental protection as claimed in claim 1 clean taste type scratch-resistant polyurethane woodenware light black flour paint, 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.
4. a kind of environmental protection clean taste type scratch-resistant polyurethane woodenware light black flour paint as described in claim 1,2, is characterized in that: described defoamer selects one or its combination of modified siloxane defoamer, polyacrylic ester defoamer.
5. a kind of environmental protection clean taste type scratch-resistant polyurethane woodenware light black flour paint as described in claim 1,2, is characterized in that: the one through dimethyldichlorosilane(DMCS) surface-treated hydrophobic type fumed silica, modified urea polymkeric substance selected by described anti-settling agent.
6. a kind of environmental protection clean taste type scratch-resistant polyurethane woodenware light black flour paint as described in claim 1,2, 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.
7. a kind of environmental protection clean taste type scratch-resistant polyurethane woodenware light black flour paint as described in claim 1,2, it is characterized in that: described carbon black selects Mongul-L, REGAL400R, Monarch1300 or Monarch900 of Cabot, Specialbiack4, Special biack6, Special biack550, FW18, FW285 or FW200 of Degussa, MA7, MA100 or #40 of Mitsubishi Chemical, Raven3500, Raven1255 or Raven3600 of Columbian Chemical, and the one of other high-carbon black pigment.
8. a kind of environmental protection clean taste type scratch-resistant polyurethane woodenware light black flour paint as described in claim 1,2, 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
the one of DISPERBYK-2000, DISPERBYK-2001, DISPERBYK-2020, DISPERBYK-2025, DISPERBYK-2026 or its combination.
9. the preparation method of a kind of environmental protection clean taste type scratch-resistant polyurethane woodenware light black flour paint carbon black color slurry as described in claim 1,2, its preparation technology is as follows: add mixed solvent by formulation weight than in dispersion bucket, clean taste type scratch resistance Synolac, 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≤10 μ, moving on to paint mixing bucket froth breaking adjusts sticky, filters and packages obtained solvent-borne type carbon black color slurry.
10. the preparation method of a kind of environmental protection as claimed in claim 1 clean taste type scratch-resistant polyurethane woodenware light black flour paint, it is characterized in that: by formulation weight ratio, partial solvent is added in Scattered Kettle, add clean taste type scratch resistance Synolac, acrylic resin, aldehyde ketone resin stir, under agitation add carbon black color slurry, flow agent, defoamer, anti-settling agent, mixed solvent, the good viscosity of stirring and adjusting, filters and packages i.e. obtained a kind of environmental protection clean taste type scratch-resistant polyurethane woodenware light black flour paint.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310684274.2A CN104710929A (en) | 2013-12-13 | 2013-12-13 | Preparation method of environmental-protection odorless scratch-resistant polyurethane woodenware bright black finish |
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|---|---|---|---|
| CN201310684274.2A CN104710929A (en) | 2013-12-13 | 2013-12-13 | Preparation method of environmental-protection odorless scratch-resistant polyurethane woodenware bright black finish |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105153923A (en) * | 2015-08-28 | 2015-12-16 | 东来涂料技术（上海）有限公司 | Low-VOC (volatile organic compounds) anti-scratch transparent matte varnish and preparation method thereof |
-
2013
- 2013-12-13 CN CN201310684274.2A patent/CN104710929A/en active Pending
Non-Patent Citations (1)
| Title |
|---|
| 胡飞燕 等: "《涂料基础配方与工艺》", 30 June 2013 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105153923A (en) * | 2015-08-28 | 2015-12-16 | 东来涂料技术（上海）有限公司 | Low-VOC (volatile organic compounds) anti-scratch transparent matte varnish and preparation method thereof |
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Application publication date: 20150617 |