CN109306235A - High transparency polyurethane matte varnish and preparation method thereof - Google Patents
High transparency polyurethane matte varnish and preparation method thereof Download PDFInfo
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- CN109306235A CN109306235A CN201811124045.4A CN201811124045A CN109306235A CN 109306235 A CN109306235 A CN 109306235A CN 201811124045 A CN201811124045 A CN 201811124045A CN 109306235 A CN109306235 A CN 109306235A
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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
-
- 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
- C08G18/62—Polymers of compounds having carbon-to-carbon double bonds
- C08G18/6216—Polymers of alpha-beta ethylenically unsaturated carboxylic acids or of derivatives thereof
- C08G18/622—Polymers of esters of alpha-beta ethylenically unsaturated carboxylic acids
- C08G18/6225—Polymers of esters of acrylic or methacrylic acid
- C08G18/6229—Polymers of hydroxy groups containing esters of acrylic or methacrylic acid with aliphatic polyalcohols
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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
- C08G18/792—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
- C08G18/794—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates containing isocyanurate groups formed by oligomerisation of aromatic isocyanates or isothiocyanates
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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
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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
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/10—Transparent films; Clear coatings; Transparent materials
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- 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
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
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- 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
-
- 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
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/18—Spheres
Abstract
The present invention relates to a kind of high transparency polyurethane matte varnish and preparation method thereof.The high transparency polyurethane matte varnish includes first component: 0-60 parts of toluene diisocyanate prepolymer, 0-50 parts of hexamethylene diisocyanate prepolymer, 40-60 parts of solvent, 0.2-0.4 parts of water absorbing agent；The parts by weight of the toluene diisocyanate prepolymer and hexamethylene diisocyanate prepolymer are not 0 simultaneously；Second component: 60-80 parts of acrylic resin, 0.1-0.3 parts of defoaming agent, 0.1-0.5 parts of wetting dispersing agent, 0.1-0.3 parts of levelling agent, 1-8 parts of organic polymeric microspheres, 0.5-3 parts of anti-settling agent, 0-1.0 parts of wax powder, 5.0-15.0 parts of solvent.The high transparency polyurethane matte varnish has both high transparency and excellent matte effect, and the characteristics such as rate of drying, hardness, adhesive force meet polyurethane performance indicator, while organic solvent content is low, environmentally protective.
Description
Technical field
The present invention relates to paint fields, more particularly to high transparency polyurethane matte varnish and preparation method thereof.
Background technique
Since polyurethane coating has excellent hardness, adhesive force, chemicals-resistant, dicoration and wear-resisting property are used extensively
In wooden furniture paint, automobile coating, anticorrosive paint and sapecial coating.Since Chinese market nineties, polyurethane coating is gradually replaced
Pervious alkyd paint becomes the mainstream of furniture coating.
Furniture coating in the market is divided into two major classes: first is that clear-coated effect, can embody the texture of substrate, substrate master
It to include the types such as paster, wood skin, solid wood；Another kind of is real color effect, has been completely covered by following substrate, surface is with certain
Color, substrate mainly has medium density fiberboard, the materials such as polyurethane foam.Usually high-grade furniture can clearly embody the line of substrate
Reason, the coating transparency that coating uses is higher, and the clarity of film can be better.It is clear-coated but be divided into matte effect and light effect
Fruit, wherein matte effect occupies 90% or more the market share.The clear-coated coating used mainly includes transparent priming, saturating
Bright finishing coat and colorant.Matte effect it is clear-coated, need using transparent matte varnish.
The development of high transparency matte varnish can improve the aesthetic appearance of furniture to the greatest extent, improve the class of furniture, full
The pursuit of the sufficient continuous good life of people.Current transparent matte varnish mainly uses traditional polyurethane coating, usually adopts
It uses silica to carry out delustring as delustering agent, and larger amount of delustering agent is needed to can be only achieved required extinction effect, and dioxy
Although SiClx has preferable extinction, the transparency of varnish will affect, in the case where dosage is big, this defect is more
Obviously.Therefore current polyurethane coating is difficult to have both high transparency and excellent matte effect.
Summary of the invention
Based on this, it is necessary to provide a kind of high transparency polyurethane matte varnish.The high transparency polyurethane matte varnish has both
High transparency and excellent matte effect, and the characteristics such as rate of drying, hardness, adhesive force meet polyurethane performance indicator, together
When solvent content it is low, it is environmentally protective.
A kind of high transparency polyurethane matte varnish, including first component and second component, the weight of the first component and second component
Than for 1:1.5-2.5；
The first component includes the raw material of following parts by weight:
The parts by weight of the toluene diisocyanate prepolymer and hexamethylene diisocyanate prepolymer are not 0 simultaneously；
The second component includes the raw material of following parts by weight:
The glossiness of the acrylic resin is 65-75%.
The high transparency polyurethane matte varnish in one of the embodiments, the first component includes following weight
The raw material of part:
The second component includes the raw material of following parts by weight:
The organic polymeric microspheres are polymethyl methacrylate carbamide resin microballoon, D50 in one of the embodiments,
It is 3.5-6 microns, D100 is less than 20 microns.
Solid part of the acrylic resin is 50-60%, viscosity 4000- in one of the embodiments,
8000mPa.s, acid value 4.0-9.0.
The toluene diisocyanate prepolymer is toluene di-isocyanate(TDI) addition product, first in one of the embodiments,
One of phenylene diisocyanate tripolymer or the two mixture.
The adipic acid diisocyanate prepolymer is the addition of adipic acid diisocyanate in one of the embodiments,
One of object, adipic acid diisocyanate trimer either the two mixture.
The defoaming agent is organic silicon defoaming agent, one in esters of acrylic acid defoaming agent in one of the embodiments,
The mixture of kind or the two.Preferably organic silicon defoaming agent.
The wetting dispersing agent is modified polyurethane dispersant in one of the embodiments,.
The levelling agent is silicone levelling agent, one in acrylics levelling agent in one of the embodiments,
The mixture of kind or the two.Preferably silicone levelling agent.
In one of the embodiments, the anti-settling agent be polyamide-based anti-settling agent, it is a kind of in polyethylene kind anti-settling agent
Or the mixture of the two.Preferably polyamide-based anti-settling agent.
In one of the embodiments, the wax powder be polyethylene wax, polypropylene wax, polytetrafluoroethylwax wax one kind or
It is two or more mixtures.Preferably polyethylene wax.
The water absorbing agent is formic acid triethyl in one of the embodiments,.
The solvent includes butyl acetate and propylene glycol methyl ether acetate in one of the embodiments,.
The present invention also provides the preparation methods of the high transparency polyurethane matte varnish, include the following steps:
The component A preparation: being mixed the solvent and water absorbing agent, stirred 3-7 minutes with 250-350 revs/min of revolving speed,
Then the toluene diisocyanate prepolymer and hexamethylene diisocyanate prepolymer is added, 450-550 revs/min of stirring 5-15 divides
Clock；
The component B preparation: under 450-550 revs/min of revolving speed stirring condition, in the acrylic resin successively
The defoaming agent, wetting dispersing agent, levelling agent, anti-settling agent is added, stirs 5-15 minutes；Add the organic polymeric microspheres
And wax powder, with 850-950 revs/min stirring 25-35 minutes；Then the solvent is added, is stirred with 450-550 revs/min of revolving speed
It mixes 10-20 minutes.
Compared with prior art, the present invention has the advantage that
High transparency polyurethane matte varnish of the invention, reasonable compatibility each raw material composition, using organic polymeric microspheres as
Extinction material, the acrylic resin that cooperation glossiness is 65-75%, can be obtained institute in the lesser situation of extinction material dosage
The extinction effect needed, while making polyurethane system transparency with higher.With toluene diisocyanate prepolymer and/or oneself two
Isocyanate prepolymer is polymerize as isocyanates, while guarantee system extinction, can make the hardness, attached of system
The mechanical properties such as put forth effort to meet the requirements.The polyurethane lacquer that sum up may make has both high transparency and excellent dumb light effect
Fruit, and the characteristics such as rate of drying, hardness, adhesive force meet the requirements, solvent content is low, and it is environmentally protective, it is particularly suitable for saturating in furniture
It applies and promotes in bright covering with paint coating.
Further, toluene diisocyanate prepolymer and hexamethylene diisocyanate prepolymer are matched according to certain parts by weight
It closes and uses, the matte effect and mechanical property of polyurethane system can be optimized simultaneously.The screening of type is carried out to each raw material component,
Polyurethane matte varnish can be made to obtain with more suitable viscosity, processing performance is good.
The preparation method of high transparency polyurethane matte varnish of the invention, step is simple, easily controllable, is suitable for extensive
Production.
Specific embodiment
High transparency polyurethane matte varnish of the invention and preparation method thereof is made below in conjunction with specific embodiment further
Detailed description.
The raw material used in the embodiment of the present invention is as follows:
Toluene diisocyanate prepolymer is purchased from Beyer Co., Ltd L75, toluene di-isocyanate(TDI) addition product.
Hexamethylene diisocyanate prepolymer, purchased from the N3390 of Beyer Co., Ltd, adipic acid diisocyanate trimer.
Water absorbing agent, purchased from the BF-5 water absorbing agent of Dongguan City Jia He Chemical Co., Ltd., formic acid triethyl.
Organic solvent, butyl acetate is purchased from the three wooden groups；Propylene glycol methyl ether acetate is purchased from Jiangyin Bai Chuan.
Acrylic resin, purchased from the acrylic resin 2550F of the modest chemical limited liability company of moral, glossiness 75%, Gu
Body part is 50-60%, viscosity 4000-8000mPa.s, acid value 4-9.
Defoaming agent is purchased from BYK company BYK-066N, is organic silicon defoamer.
Wetting dispersing agent is purchased from BASF AG FEKA4010, is modified polyurethane dispersant.
Levelling agent is purchased from BYK company BYK378, organosilicon levelling agent.
Organic polymeric microspheres are purchased from Albemarle Corporation of U.S. M-5, are polymethyl methacrylate carbamide resin microballoon, and D50 is
3.5-6 microns, D100 is less than 20 microns.
Anti-settling agent is purchased from DISPARLON company polyamide wax 630-20, polyamide-based anti-settling agent.
Wax powder is purchased from Lubrizol Corp.'s wax assistant 1400SF, polyethylene kind wax powder.
Embodiment 1:
The present embodiment provides a kind of high grade of transparency polyurethane matte varnish, the first components and second group for being 1:2 including weight ratio
Point.
Component A is composed of the following raw materials in parts by weight: 50 parts of toluene diisocyanate prepolymer L75, own diisocyanate
0 part of N3390 of ester tripolymer prepolymer, 29.7 parts of organic solvent butyl acetate, 20 parts of organic solvent propylene glycol methyl ether acetate,
0.3 part of BF-5 water absorbing agent.
Component B is composed of the following raw materials in parts by weight: 78 parts of acrylic resin H051B, 0.2 part of defoaming agent, and wetting point
0.3 part of powder, 0.3 part of levelling agent, 3 parts of organic polymeric microspheres, 3 parts of anti-settling agent, 0.5 part of wax powder, organic solvent butyl acetate
9.7 parts, 5 parts of organic solvent propylene glycol methyl ether acetate.
Above-mentioned high grade of transparency polyurethane matte varnish the preparation method is as follows:
Component A preparation: being added organic solvent and BF-5 water absorbing agent, and 300 revs/min are stirred 5 minutes, and toluene is then added
Diisocyanate prepolymer and hexamethylene diisocyanate prepolymer, 500 revs/min are stirred 10 minutes；With 300 mesh filter-cloth filtering packets
Dress.
Component B preparation: be added acrylic resin, 500 revs/min stirring under sequentially add defoaming agent, wetting dispersing agent,
Levelling agent, anti-settling agent stir 10 minutes；500 revs/min are added with stirring organic polymeric microspheres and wax powder, and 900 revs/min
Then organic solvent is added in stirring 30 minutes, 500 revs/min are stirred 15 minutes.
The coating that first, second component is obtained is mixed by the weight ratio of 1:2, obtains high grade of transparency polyurethane matte varnish A.
Embodiment 2:
The present embodiment provides a kind of high grade of transparency polyurethane matte varnish, the first components and second group for being 1:2 including weight ratio
Point.
Component A is composed of the following raw materials in parts by weight: 50 parts of toluene diisocyanate prepolymer L75, own diisocyanate
0 part of N3390 of ester tripolymer prepolymer, 29.7 parts of organic solvent butyl acetate, 20 parts of organic solvent propylene glycol methyl ether acetate,
0.3 part of BF-5 water absorbing agent.
Component B is composed of the following raw materials in parts by weight: 74 parts of acrylic resin H051B, 0.2 part of defoaming agent, and wetting point
0.5 part of powder, 0.3 part of levelling agent, 8 parts of organic polymeric microspheres, 3 parts of anti-settling agent, 0.5 part of wax powder, organic solvent butyl acetate
8.5 parts, 5 parts of organic solvent propylene glycol methyl ether acetate.
Above-mentioned high grade of transparency polyurethane matte varnish the preparation method is as follows:
Component A preparation: being added organic solvent and BF-5 water absorbing agent, and 300 revs/min are stirred 5 minutes, and toluene is then added
Diisocyanate prepolymer and hexamethylene diisocyanate prepolymer, 500 revs/min are stirred 10 minutes；With 300 mesh filter-cloth filtering packets
Dress.
Component B preparation: be added acrylic resin, 500 revs/min stirring under sequentially add defoaming agent, wetting dispersing agent,
Levelling agent, anti-settling agent stir 10 minutes；500 revs/min are added with stirring organic polymeric microspheres and wax powder, and 900 revs/min
Then organic solvent is added in stirring 30 minutes, 500 revs/min are stirred 15 minutes.
The coating that first, second component is obtained is mixed by the weight ratio of 1:2, obtains high grade of transparency polyurethane matte varnish B.
Embodiment 3:
The present embodiment provides a kind of high grade of transparency polyurethane matte varnish, the first components and second group for being 1:2 including weight ratio
Point.
Component A is composed of the following raw materials in parts by weight: 0 part of toluene diisocyanate prepolymer L75, hexamethylene diisocyanate
40 parts of tripolymer prepolymer N3390,39.7 parts of organic solvent butyl acetate, 20 parts of organic solvent propylene glycol methyl ether acetate,
0.3 part of BF-5 water absorbing agent.
Component B is composed of the following raw materials in parts by weight: 75 parts of acrylic resin H051B, 0.2 part of defoaming agent, and wetting point
0.3 part of powder, 0.3 part of levelling agent, 6 parts of organic polymeric microspheres, 3 parts of anti-settling agent, 0.5 part of wax powder, organic solvent butyl acetate
9.7 parts, 5 parts of organic solvent propylene glycol methyl ether acetate.
Above-mentioned high grade of transparency polyurethane matte varnish the preparation method is as follows:
Component A preparation: being added organic solvent and BF-5 water absorbing agent, and 300 revs/min are stirred 5 minutes, and toluene is then added
Diisocyanate prepolymer and hexamethylene diisocyanate prepolymer, 500 revs/min are stirred 10 minutes；With 300 mesh filter-cloth filtering packets
Dress.
Component B preparation: be added acrylic resin, 500 revs/min stirring under sequentially add defoaming agent, wetting dispersing agent,
Levelling agent, anti-settling agent stir 10 minutes, and 500 revs/min are added with stirring organic polymeric microspheres and wax powder, and 900 revs/min
Then organic solvent is added in stirring 30 minutes, 500 revs/min are stirred 15 minutes.
The coating that first, second component is obtained is mixed by the weight ratio of 1:2, obtains high grade of transparency polyurethane matte varnish C.
Embodiment 4:
The present embodiment provides a kind of high grade of transparency polyurethane matte varnish, the first components and second group for being 1:2 including weight ratio
Point.
Component A is composed of the following raw materials in parts by weight: 30 parts of toluene diisocyanate prepolymer L75, own diisocyanate
20 parts of N3390 of ester tripolymer prepolymer, 29.7 parts of organic solvent butyl acetate, 20 parts of organic solvent propylene glycol methyl ether acetate,
0.3 part of BF-5 water absorbing agent.
Component B is composed of the following raw materials in parts by weight: 78 parts of acrylic resin H051B, 0.2 part of defoaming agent, and wetting point
0.3 part of powder, 0.3 part of levelling agent, 3 parts of organic polymeric microspheres, 3 parts of anti-settling agent, 0.5 part of wax powder, organic solvent butyl acetate
9.7 parts, 5 parts of organic solvent propylene glycol methyl ether acetate.
Above-mentioned high grade of transparency polyurethane matte varnish the preparation method is as follows:
Component A preparation: being added organic solvent and BF-5 water absorbing agent, and 300 revs/min are stirred 5 minutes, and toluene is then added
Diisocyanate prepolymer and hexamethylene diisocyanate prepolymer, 500 revs/min are stirred 10 minutes；With 300 mesh filter-cloth filtering packets
Dress.
Component B preparation: be added acrylic resin, 500 revs/min stirring under sequentially add defoaming agent, wetting dispersing agent,
Levelling agent, anti-settling agent stir 10 minutes；500 revs/min are added with stirring organic polymeric microspheres and wax powder, and 900 revs/min
Then organic solvent is added in stirring 30 minutes, 500 revs/min are stirred 15 minutes.
The coating that first, second component is obtained is mixed by the weight ratio of 1:2, obtains high grade of transparency polyurethane matte varnish.
Comparative example 1:
This comparative example provides a kind of polyurethane matte varnish, and raw material and preparation method are substantially the same manner as Example 1, difference
It is: using the organic polymeric microspheres in ED30 (silica flatting silica) alternate embodiment 1 of GRACE, 2 parts of dosage, has
Solvent butyl acetate dosage is 10.7 parts.
Comparative example 2:
This comparative example provides a kind of polyurethane matte varnish, and raw material and preparation method are substantially the same manner as Example 1, difference
It is: uses Changxing chemistry 7322-X-60 (glossiness is greater than 95%), the acrylic resin in alternate embodiment 1.
Comparative example 3:
This comparative example provides a kind of polyurethane matte varnish, and raw material and preparation method are substantially the same manner as Example 1, difference
It is: using the acrylic resin in Changxing chemistry 7322-X-60 (glossiness is greater than 95%) alternate embodiment 1；It uses simultaneously
Organic polymeric microspheres in ED30 (silica flatting silica) alternate embodiment 1 of GRACE.
Comparative example 4:
This comparative example provides a kind of polyurethane matte varnish, and raw material and preparation method are substantially the same manner as Example 1, difference
It is: using the acrylic resin in Changxing chemistry 7322-X-60 (glossiness is greater than 95%) substitution embodiment of the present invention 1, has
The dosage of machine polymer is 6.5 parts, and organic solvent butyl acetate amount is 4.2 parts.
By the polyurethane matte varnish of embodiment 1-4 and comparative example 1-4 using the construction technology of spraying, it is coated uniformly on phase
On same solid wood board, the performance of polyurethane coating is measured, VOC is according to the appendix A test method of GB18581, and glossiness is according to GB/
4893.6 furniture surface gloss of film measuring method of T, viscosity (are done solid work) according to 1723 viscosity of the coating measuring method of GB/T, rate of drying
According to GB1728 paint film, putty membrane drying time measuring method, hardness according to the detection method of GB/T1730 hardness of paint film, press by adhesive force
According to the cross cut test of GB/T9286 paint and varnish paint film, test result is as shown in table 1.
Table 1
Integrated embodiment 1-4 is it is found that high grade of transparency polyurethane matte varnish of the invention has preferable transparency and mute
Light effect, and the characteristics such as rate of drying, hardness, adhesive force meet polyurethane performance indicator, while organic solvent content is low, green
Environmental protection.By adjusting the dosage of organic polymeric microspheres, the glossiness of adjustable paint film.
Comparative example 1 and comparative example 1, the acrylic resin of use is identical, in the identical situation of glossiness achieved
Under, although the dosage of silica flatting silica few 33%, the transparency of system is still poor.
Comparative example 1 and comparative example 2, acrylic resin used in the embodiment of the present invention and conventional acrylic resin are (i.e.
Changxing chemistry 7322-X-60) it compares, the characteristic with easy delustring, mutually cooperateing with organic polymeric microspheres significantly to reduce
Glossiness, and transparency is more preferably.
Comparative example 1 and comparative example 3, comparative example 3 are traditional polyurethane matte varnish, in contrast, embodiment 1
Glossiness is suitable, and extinction material dosage is identical, but the transparency of the paint film of the acquisition of comparative example 3 is very poor.In addition, comparative example 3
Polyurethane matte varnish viscosity is big, and processing performance is poor.
Comparative example 1 and comparative example 4, using the acrylic resin of the embodiment of the present invention, in glossiness phase achieved
With in the case where, the dosage of the organic polymeric microspheres used can reach institute for 35% or so of conventional acrylic resin dosage
The extinction needed, can save the dosage of organic polymeric microspheres, and viscosity is more suitable, processing performance is good.
In addition, the high transparency polyurethane matte varnish of embodiment 1-4 complies fully with GB18581 indoor decorating and refurnishing materials and has
Malicious limits of harmful substances standard and GB/T23997 indoor decorating polyurethane coating standard.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of high transparency polyurethane matte varnish, which is characterized in that including first component and second component, the first component and second group
The weight ratio divided is 1:1.5-2.5；
The first component includes the raw material of following parts by weight:
The parts by weight of the toluene diisocyanate prepolymer and hexamethylene diisocyanate prepolymer are not 0 simultaneously；
The second component includes the raw material of following parts by weight:
The glossiness of the acrylic resin is 65-85%.
2. high transparency polyurethane matte varnish according to claim 1, which is characterized in that the first component includes following weight
Measure the raw material of part:
The second component includes the raw material of following parts by weight:
3. high transparency polyurethane matte varnish according to claim 1, which is characterized in that the organic polymeric microspheres are
Polymethyl methacrylate carbamide resin microballoon, D50 are 3.5-6 microns, and D100 is less than 20 microns.
4. high transparency polyurethane matte varnish according to claim 1, which is characterized in that the solid of the acrylic resin
Part is 50-60%, viscosity 4000-8000mPa.s, acid value 4-9.
5. high transparency polyurethane matte varnish according to claim 1, which is characterized in that
The toluene diisocyanate prepolymer is toluene di-isocyanate(TDI) addition product, one in toluene diisocyanate trimer
Kind or the two mixture；
The adipic acid diisocyanate prepolymer is adipic acid diisocyanate addition product, adipic acid diisocyanate trimer
One of or the two mixture.
6. high transparency polyurethane matte varnish according to claim 1-4, which is characterized in that the defoaming agent is
The mixture of one of organic silicon defoaming agent, esters of acrylic acid defoaming agent or the two.
7. high transparency polyurethane matte varnish according to claim 1-4, which is characterized in that the wetting and dispersing
Agent is modified polyurethane dispersant.
8. high transparency polyurethane matte varnish according to claim 1-4, which is characterized in that the levelling agent is
The mixture of one of silicone levelling agent, acrylics levelling agent or the two.
9. high transparency polyurethane matte varnish according to claim 1-4, which is characterized in that the anti-settling agent
It is polyamide-based anti-settling agent, a kind of or the two mixture in polyethylene kind anti-settling agent；The wax powder is polyethylene wax, poly- third
A kind of or two or more mixture of alkene wax, polytetrafluoroethylwax wax.
10. the preparation method of the described in any item high transparency polyurethane matte varnish of claim 1-9, which is characterized in that including
Following steps:
Component A preparation: mixing the solvent and water absorbing agent, stirs 3-7 minutes with 250-350 revs/min of revolving speed, then
Be added the toluene diisocyanate prepolymer and hexamethylene diisocyanate prepolymer, 450-550 revs/min stirring 5-15 minutes；
The component B preparation: it under 450-550 revs/min of revolving speed stirring condition, is sequentially added in the acrylic resin
The defoaming agent, wetting dispersing agent, levelling agent, anti-settling agent stir 5-15 minutes；Add the organic polymeric microspheres and wax
Powder, with 850-950 revs/min stirring 25-35 minutes；Then the solvent is added, 10- is stirred with 450-550 revs/min of revolving speed
20 minutes.
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| CN201811124045.4A CN109306235A (en) | 2018-09-26 | 2018-09-26 | High transparency polyurethane matte varnish and preparation method thereof |
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| CN201811124045.4A CN109306235A (en) | 2018-09-26 | 2018-09-26 | High transparency polyurethane matte varnish and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111454414A (en) * | 2020-05-15 | 2020-07-28 | 万华化学集团股份有限公司 | Matte polyisocyanate curing agent and preparation method and application thereof |
| CN112574345A (en) * | 2020-12-08 | 2021-03-30 | 四川大学 | Preparation method of organic extinction microspheres for synthetic leather |
| CN115109504A (en) * | 2022-06-15 | 2022-09-27 | 广东安捷伦新材料科技有限公司 | High-scratch-resistance matte varnish and preparation method and application thereof |
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| CN112574345A (en) * | 2020-12-08 | 2021-03-30 | 四川大学 | Preparation method of organic extinction microspheres for synthetic leather |
| CN115109504A (en) * | 2022-06-15 | 2022-09-27 | 广东安捷伦新材料科技有限公司 | High-scratch-resistance matte varnish and preparation method and application thereof |
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