CN105399914A - Wear-resistant matt polyurethane varnish and preparation method thereof - Google Patents
Wear-resistant matt polyurethane varnish and preparation method thereof Download PDFInfo
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- CN105399914A CN105399914A CN201510915684.2A CN201510915684A CN105399914A CN 105399914 A CN105399914 A CN 105399914A CN 201510915684 A CN201510915684 A CN 201510915684A CN 105399914 A CN105399914 A CN 105399914A
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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
- C08G18/62—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
- 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
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Paints Or Removers (AREA)
Abstract
The invention provides a wear-resistant matt polyurethane varnish. The wear-resistant matt polyurethane varnish is composed of a component A and a component B in a mass ratio of 5: 1. The component A comprises, by mass, 20 to 40 parts of resin a, 15 to 30 parts of resin b, 10 to 20 parts of resin c, 1 to 2 parts of a leveling agent, 3 to 6 parts of a rheological aid, 0.01 to 0.05 part of dibutyltin dilaurate, 0.1 to 0.5 part of a light stabilizing aid, 0.1 to 0.5 part of an ultraviolet absorber, 2 to 6 parts of wear-resistant powder, 4 to 8 parts of matt powder and 15 to 30 parts of a first solvent; and the component B comprises, by mass, 40 to 60 parts of resin d and 40 to 60 parts of a second solvent. A paint film prepared from the wear-resistant matt polyurethane varnish has the characteristics of a good luster conservation rate, small chromatic aberration and excellent wear resistance; thus, the problem of poor durability of conventional paint film products in outdoor application is overcome.
Description
Technical field
The present invention relates to a kind of dumb light polyurethane lacquer, particularly relate to a kind of wear-resisting dumb light polyurethane lacquer and preparation method thereof.
Background technology
Dumb light polyurethane coating at home motorcycle, power truck market widely uses.Due to the characteristic of its dumb light, bring visual experience different with the high-gloss paint of routine, be well received by consumers, possess absolute share of market at motorcycle and power truck market.But owing to using a large amount of silicon-dioxide flatting silicas to reduce gloss in its material, thus cause wearing no resistance of film, this is also the ubiquitous difficult problem of dumb light polyurethane coating industry.
Current industry generally can accomplish dumb light polyurethane lacquer, but wear resistance is not good, and nail or the slight scratching of hard object just can produce the scratch that gloss obviously increases, and when making it use out of doors, paint film is easily destroyed, and have had a strong impact on outward appearance and the weather resistance of film.For the problems referred to above, the dumb light polyurethane lacquer that a kind of wear resistance of market in urgent need is good, improves the wear resistance of dumb light paint, reduces the shortcoming that paint film is easily scraped off.
Summary of the invention
For above-mentioned technical problem, the invention provides a kind of wear-resisting dumb light polyurethane lacquer, by the adjustment of the proportion of composing to component A and B component, obtain that a kind of gloss of film conservation rate is good, chromatic aberration is little, the wear-resisting dumb light polyurethane lacquer of paint film wear resisting property excellence, solves the problem of poor durability when current paint film product uses out of doors.Accordingly, present invention also offers the preparation method of this wear-resisting dumb light polyurethane lacquer.
In order to realize technical purpose of the present invention, the present invention by the following technical solutions.
A kind of wear-resisting dumb light polyurethane lacquer, be made up of component A and B component, wherein component A and B component are 5:1 proportioning before use in mass ratio, by mass parts, described component A comprises 20-40 part resin a, 15-30 part resin b, 10-20 part resin c, 1-2 part flow agent, 3-6 part auxiliary rheological agents, 0.01-0.05 part dibutyl tin laurate, 0.3-1.0 part light stabilization aid, 0.3-1.0 part ultraviolet absorbers, 2-6 part abrasion-resistant powder, 4-8 part dumb light powder and 15-30 part first solvent; Described B component comprises 40-60 part resin d and 40-60 part second solvent.
Preferably, described resin a is that 50%-60% contains admittedly, the Hydroxylated acrylic resin of the hydroxy radical content of 2.0%-2.4%; Described resin b is the Hydroxylated acrylic resin of the 70% solid hydroxy radical content containing, 3.5%-4.4%; Described resin c is dumb light Hydroxylated acrylic resin; Described resin d is HDI tripolymer isocyanate polymer.
Preferred, described resin a is one or both mixtures formed with arbitrary proportion in FS-2050 or FS-2460 of Taiwan De Qian chemical company.
Preferred, described resin b is one or both mixtures formed with arbitrary proportion in the Setalux1753SS-70 of SM-515 or the Niu Peisi resin company limited of Qing Te Chemical Co., Ltd..
Preferred, described resin c is the MT-2550F of Taiwan De Qian chemical company.
Preferred, described resin d is the DesmodurN3300 of Bayer A.G.
Preferably, described flow agent is siliceous flow agent and the esters of acrylic acid flow agent mixture that forms of 20-60:40-50 in mass ratio.
Preferably, described siliceous flow agent is the one in polyether-modified polydimethylsiloxane or polysiloxane-polyether copolymer, and described acrylic ester polymer class flow agent is the one in lauryl acrylate, Hydroxyethyl acrylate, Propylene glycol monoacrylate, hydroxyethyl methylacrylate or Rocryl 410.
Preferred, described siliceous flow agent is the BYK-358N of German Bick chemical company, states the EFKA-3299 that acrylic ester polymer class flow agent is Dutch EFKA company.
Preferably, described auxiliary rheological agents is the one in polyamide wax or polyethylene wax.
Preferably, described photostabilizer be Tinuvin292 known in those skilled in the art or/and Tinuvin5060, described ultraviolet absorbers is that Tinuvin384-2 known in those skilled in the art is or/and Tinuvin1130.
Preferably, described abrasion-resistant powder is that PMMA is or/and ceramic.
Preferably, described dumb light powder is OK520, OK607 and/or TS100 known in those skilled in the art.
Preferably, described first solvent be n-butyl acetate, dimethylbenzene and 1-Methoxy-2-propyl acetate by mass percentage 20%-50%:20-40%:30%-50% composition mixture; Described second solvent is that one or both in n-butyl acetate or dimethylbenzene mix with arbitrary proportion.
Accordingly, a kind of preparation method of wear-resisting dumb light polyurethane lacquer, is characterized in that, comprise the steps:
The preparation of (a) component A: the resin a in component A, resin b, resin c are joined in reactor by proportioning, under the rotating speed of 300rpm-500rpm, add flow agent, auxiliary rheological agents, dibutyl tin laurate, photostabilizer, ultraviolet absorbers, abrasion-resistant powder, dumb light powder and the first solvent while stirring successively, with 200 order filter-cloth filterings after fully stirring under reactor rotating speed is 500-1800rpm condition, obtain component A finished product;
B the preparation of () B component: joined by resin d in another reactor, add the second solvent under rotating speed is 300-500rpm, continues, under rotating speed is 500-800rpm, to stir, with 500 order filter-cloth filterings, obtains B component finished product;
C component A and B component gained finished product mix according to mass ratio 5:1 by () before spraying.
The invention has the beneficial effects as follows:
1, the wear-resisting dumb light polyurethane lacquer of one provided by the invention, solves the problem that common matte varnish wears no resistance, and reduces paint film and uses destroyed risk out of doors;
2, recoat sticking power of not polishing is good, has underproof workpiece in coating process, can not polish and directly again spray, still have good sticking power, improve anti-work production efficiency;
3, there is excellent weather resistance, when film uses out of doors gloss and colour-change degree little, extend application product duration of service out of doors.
Embodiment
For a better understanding of the present invention, be described in detail invention below in conjunction with specific embodiment, if no special instructions, the component in following examples is all in mass parts.
Embodiment 1:
The preparation of (a) component A: by proportioning by part FS-2050 of 32 in component A, 15 parts of SM515, 15 parts of MT-2550F join in reactor, under the rotating speed of 300rpm-500rpm, add 0.5 part of BYK-358N while stirring successively, 0.5 part of EFKA-3299, 4 parts of polyamide waxes, 0.02 part of dibutyl tin laurate, 0.5 part of Tinuvin292, 0.5 part of Tinuvin1130, 5 parts of PMMA micro mists, 6 parts of OK607 and 21.28 part n-butyl acetates, dimethylbenzene, 1-Methoxy-2-propyl acetate by mass percentage 50%:20%:30% composition mixture, with 200 order filter-cloth filterings after fully stirring under reactor rotating speed is 500-1800rpm condition, obtain component A finished product,
The preparation of (b) B component: 60 parts of DesmodurN3300 are joined in another reactor, under rotating speed is 300-500rpm, adds 40 parts of n-butyl acetates, continues, under rotating speed is 500-800rpm, to stir, with 500 order filter-cloth filterings, obtain B component finished product;
C component A and B component gained finished product mix according to mass ratio 5:1 by () before use.
Embodiment 2:
The preparation of (a) component A: by proportioning by part FS-2050 of 20 in component A, 15 parts of Setalux1753SS-70, 15 parts of MT-2550F join in reactor, under the rotating speed of 300rpm-500rpm, add 0.8 part of BYK-358N while stirring successively, 0.6 part of EFKA-3299, 3 parts of polyamide waxes, 0.01 part of dibutyl tin laurate, 0.1 part of Tinuvin292, 0.5 part of Tinuvin1130, 5 parts of PMMA micro mists, 6 parts of OK607 and 15 part n-butyl acetates, dimethylbenzene, 1-Methoxy-2-propyl acetate by mass percentage 50%:20%:30% composition mixture, with 200 order filter-cloth filterings after fully stirring under reactor rotating speed is 500-1800rpm condition, obtain component A finished product,
The preparation of (b) B component: 40 parts of DesmodurN3300 are joined in another reactor, under rotating speed is 300-500rpm, adds 60 parts of n-butyl acetates, continues, under rotating speed is 500-800rpm, to stir, with 500 order filter-cloth filterings, obtain B component finished product;
Component A and B component gained finished product are mixed according to mass ratio 5:1 before use.
Embodiment 3:
The preparation of (a) component A: by proportioning by part FS-2460 of 27 in component A, 20 parts of SM515, 20 parts of MT-2550F join in reactor, under the rotating speed of 300rpm-500rpm, add 1.2 parts of BYK-358N while stirring successively, 0.8 part of EFKA-3299, 5 parts of polyamide waxes, 0.02 part of dibutyl tin laurate, 0.5 part of Tinuvin5060, 0.5 part of Tinuvin1130, 6 parts of PMMA micro mists, 8 parts of OK607 and 25 part n-butyl acetates, dimethylbenzene, 1-Methoxy-2-propyl acetate by mass percentage 50%:20%:30% composition mixture, with 200 order filter-cloth filterings after fully stirring under reactor rotating speed is 500-1800rpm condition, obtain component A finished product,
The preparation of (b) B component: 60 parts of DesmodurN3300 are joined in another reactor, the mixed solvent of 45 parts of n-butyl acetates and dimethylbenzene composition is added under rotating speed is 300-500rpm, continue under rotating speed is 500-800rpm, stir, with 500 order filter-cloth filterings, obtain B component finished product;
C component A and B component gained finished product mix according to mass ratio 5:1 by () before use.
Embodiment 4:
The preparation of (a) component A: by proportioning by part FS-2460 of 40 in component A, 30 parts of Setalux1753SS-70, 10 parts of MT-2550F join in reactor, under the rotating speed of 300rpm-500rpm, add 1 part of BYK-358N while stirring successively, 1 part of EFKA-3299, 6 parts of polyamide waxes, 0.02 part of dibutyl tin laurate, 0.5 part of Tinuvin292, 0.5 part of Tinuvin384-2, 2 parts of ceramics, 4 parts of OK607 and 30 part n-butyl acetates, dimethylbenzene, 1-Methoxy-2-propyl acetate by mass percentage 50%:20%:30% composition mixture, with 200 order filter-cloth filterings after fully stirring under reactor rotating speed is 500-1800rpm condition, obtain component A finished product,
B the preparation of () B component: join in another reactor by 55 parts of DesmodurN3300, adds 55 parts of dimethylbenzene under rotating speed is 300-500rpm, continue, under rotating speed is 500-800rpm, to stir, with 500 order filter-cloth filterings, obtain B component finished product;
C component A and B component gained finished product mix according to mass ratio 5:1 by () before use.
Comparative example 1: common dumb light polyurethane lacquer on the market.
Carry out Performance Detection to paint film prepared by the wear-resisting dumb light polyurethane lacquer prepared by embodiment 1-4 and comparative example 1, result is as shown in table 1.
Paint film property prepared by the wear-resisting dumb light polyurethane lacquer of table 1
Note 1: the instrument of wear resistance detection method is reciprocating abrasion tester, test method is stick in the plane of ORGANDY in the weight applying 1Kg counterweight at 1 × 1cm, and this planar horizontal is adjacent to test board, does reciprocating friction test.Wherein, reciprocating rate is 30 beats/min, reciprocal time 50 times.The change of gloss data of experiment with measuring plate before testing afterwards after test.
Can obviously find out according to upper table data, paint film prepared by a kind of wear-resisting dumb light polyurethane lacquer provided by the invention is compared with comparative example 1, the gloss retention of paint film is good, chromatic aberration is little, and paint film wear resisting property is excellent, solves the problem of poor durability when paint film product uses out of doors.In addition, paint film prepared by wear-resisting dumb light polyurethane lacquer provided by the invention is not when polishing, and sticking power≤1 grade of recoat, can make client remove polishing operation in use, substantially increase production efficiency of doing over again.
More than show and describe ultimate principle of the present invention, principal character and advantage.The technician of the industry should understand, and above-described embodiment does not limit the present invention in any form, the technical scheme that the mode that all employings are equal to replacement or equivalent transformation obtains, and all drops in protection scope of the present invention.
Claims (10)
1. a wear-resisting dumb light polyurethane lacquer, is made up of component A and B component, and wherein component A and B component mass ratio are 5:1, it is characterized in that: by mass parts, described component A comprises 20-40 part resin a, 15-30 part resin b, 10-20 part resin c, 1-2 part flow agent, 3-6 part auxiliary rheological agents, 0.01-0.05 part dibutyl tin laurate, 0.1-0.5 part light stabilization aid, 0.1-0.5 part ultraviolet absorbers, 2-6 part abrasion-resistant powder, 4-8 part dumb light powder and 15-30 part first solvent; Described B component comprises 40-60 part resin d and 40-60 part second solvent.
2. the wear-resisting dumb light polyurethane lacquer of one according to claim 1, is characterized in that: described resin a is that 50%-60% contains admittedly, the Hydroxylated acrylic resin of the hydroxy radical content of 2.0%-2.4%; Described resin b is the Hydroxylated acrylic resin of the 70% solid hydroxy radical content containing, 3.5%-4.4%; Described resin c is dumb light Hydroxylated acrylic resin; Described resin d is HDI tripolymer isocyanate polymer.
3. the wear-resisting dumb light polyurethane lacquer of one according to claim 1, is characterized in that: described flow agent is siliceous flow agent and the esters of acrylic acid flow agent mixture that forms of 20-60:40-50 in mass ratio.
4. the wear-resisting dumb light polyurethane lacquer of one according to claim 3, is characterized in that: described siliceous flow agent is the one in polyether-modified polydimethylsiloxane or polysiloxane-polyether copolymer; Described acrylic ester polymer class flow agent is the one in lauryl acrylate, Hydroxyethyl acrylate, Propylene glycol monoacrylate, hydroxyethyl methylacrylate or Rocryl 410.
5. the wear-resisting dumb light polyurethane lacquer of one according to claim 1, is characterized in that: described auxiliary rheological agents is one in polyamide wax or polyethylene wax or mixing.
6. the wear-resisting dumb light polyurethane lacquer of one according to claim 1, it is characterized in that: described photostabilizer be Tinuvin292 known in those skilled in the art or/and Tinuvin5060, described ultraviolet absorbers is that Tinuvin384-2 known in those skilled in the art is or/and Tinuvin1130.
7. the wear-resisting dumb light polyurethane lacquer of one according to claim 1, is characterized in that: described abrasion-resistant powder is SiO
2, Al
2o
3or ZrO
2micro mist.
8. the wear-resisting dumb light polyurethane lacquer of one according to claim 1, is characterized in that: described dumb light powder is OK520, OK607 and/or TS100 known in those skilled in the art.
9. the wear-resisting dumb light polyurethane lacquer of one according to claim 1, is characterized in that: described first solvent be n-butyl acetate, dimethylbenzene and 1-Methoxy-2-propyl acetate by mass percentage 20%-50%:20-40%:30%-50% composition mixture; Described second solvent is that one or both in n-butyl acetate or dimethylbenzene mix with arbitrary proportion.
10. the preparation method of a kind of wear-resisting dumb light polyurethane lacquer according to right 1-9, is characterized in that, comprise the steps:
The preparation of (a) component A: the resin a in component A, resin b, resin c are joined in reactor by proportioning, under the rotating speed of 300rpm-500rpm, add flow agent, auxiliary rheological agents, dibutyl tin laurate, photostabilizer, ultraviolet absorbers, abrasion-resistant powder, dumb light powder and the first solvent while stirring successively, with 200 order filter-cloth filterings after fully stirring under reactor rotating speed is 500-1800rpm condition, obtain component A finished product;
B the preparation of () B component: joined by resin d in another reactor, add the second solvent under rotating speed is 300-500rpm, continues, under rotating speed is 500-800rpm, to stir, with 500 order filter-cloth filterings, obtains B component finished product;
C component A and B component gained finished product mix according to mass ratio 5:1 by ().
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| CN108047924A (en) * | 2017-12-06 | 2018-05-18 | 浙江树人学院（浙江树人大学） | It is a kind of to strengthen weather-proof coating varnish and preparation method and application |
| CN108977017A (en) * | 2017-05-31 | 2018-12-11 | 常州市卓瑞化工有限公司 | Siccative varnish and preparation method thereof |
| CN109306235A (en) * | 2018-09-26 | 2019-02-05 | 嘉宝莉化工集团股份有限公司 | High transparency polyurethane matte varnish and preparation method thereof |
| CN109627888A (en) * | 2018-09-06 | 2019-04-16 | 国网浙江省电力有限公司宁波供电公司 | A kind of dedicated high durable matte varnish of ABS ground and preparation method thereof |
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