CN108129971A - A kind of anti-scraping coating of environmental protection resistance and fingerprint resistance and its application method - Google Patents

A kind of anti-scraping coating of environmental protection resistance and fingerprint resistance and its application method Download PDF

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Publication number
CN108129971A
CN108129971A CN201711447912.3A CN201711447912A CN108129971A CN 108129971 A CN108129971 A CN 108129971A CN 201711447912 A CN201711447912 A CN 201711447912A CN 108129971 A CN108129971 A CN 108129971A
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resistance
coating
scraping
fingerprint
environmental protection
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CN201711447912.3A
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CN108129971B (en
Inventor
赵烨
施信波
卓鹏
何嘉豪
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GAUNGDONG DECRO FILM NEW MATERIAL CO Ltd
GUANGDONG DECRO PACKAGE FILMS CO Ltd
Sun Yat Sen University
Original Assignee
GAUNGDONG DECRO FILM NEW MATERIAL CO Ltd
GUANGDONG DECRO PACKAGE FILMS CO Ltd
Guangdong Shunde Germany Crown Arts Cloud Polytron Technologies Inc
Sun Yat Sen University
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    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D175/00Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
    • C09D175/04Polyurethanes
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D5/00Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/16Antifouling paints; Underwater paints
    • C09D5/1656Antifouling paints; Underwater paints characterised by the film-forming substance
    • C09D5/1662Synthetic film-forming substance
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D5/00Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/16Antifouling paints; Underwater paints
    • C09D5/1681Antifouling coatings characterised by surface structure, e.g. for roughness effect giving superhydrophobic coatings or Lotus effect
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D5/00Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/16Antifouling paints; Underwater paints
    • C09D5/1687Use of special additives
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/03Polymer mixtures characterised by other features containing three or more polymers in a blend

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Paints Or Removers (AREA)

Abstract

The present invention relates to a kind of anti-scraping coating of environmental protection resistance and fingerprint resistance and its application methods.The anti-scraping coating of the environmental protection resistance and fingerprint resistance includes following component by mass percentage:Aqueous polyurethane 5~90%, organosilicon-modified acrylic 5~90%, pH adjusting agent 0.1~1%, moistening flatting agent 0.1~0.8%, antifoaming agent 0.1~1%, curing agent 1~5%, cosolvent 1~40%.The coating of the present invention has the advantages that fluorin environment protection, surface gloss are low, permeability is excellent, anti-finger printing and scratch resistant property are good, simple for process, widely applicable to plastic film substrate.

Description

A kind of anti-scraping coating of environmental protection resistance and fingerprint resistance and its application method
Technical field
The present invention relates to coatings art more particularly to a kind of anti-scraping coating of environmentally friendly resistance and fingerprint resistance and its application methods.
Background technology
Consumer often leaves the spots such as fingerprint and slight scratch, seriously when buying contact product in packaging Product appearance is affected, is upgraded with universal and China the consumption of 3C electronic products, industry carries the packaging material of product Go out the performance requirements such as higher resistance and fingerprint resistance, scratch resistant.The anti-scraping coating of resistance and fingerprint resistance is the coating that a kind of organic polymer is composed, main Possess the characteristics such as hydrophobic, oleophobic, scratch resistance.At present, anti-finger printing can be realized mainly by two ways:First, using low table Face can chemical material, it is classic for organic fluoride class substance at present, but in system fluorine component genotoxic potential and expensive price Its application in commodity packaging is seriously affected.2nd, using physical arrangement, lotus leaf effect is imitated, but this structure is often The problems such as in the presence of processing difficulties, shortage durability degree and the bad transparency is manufactured.In recent years, single-component water-based polyurethane is from delustring tree Fat is due to properties such as excellent dumb lights and permeability, starting to be paid close attention to by coating circle.It is but aqueous from delustring tree at present The defects of fat generally existing film forming is insufficient, resistance to scraping is poor.
Invention content
Based on this, the object of the present invention is to provide a kind of anti-scraping coatings of environmentally friendly resistance and fingerprint resistance, are imitated with good dumb light Fruit, permeability, anti-finger printing and scratch resistant property.
Another object of the present invention is to provide a kind of application methods of the anti-scraping coating of environmentally friendly resistance and fingerprint resistance, have simple It is easy, adhesion is good, applicability is wide on all kinds of base materials the advantages of.
The purpose of the present invention is what is be achieved through the following technical solutions:The anti-scraping coating of a kind of environmental protection resistance and fingerprint resistance, by quality hundred Divide and include following component than meter:Aqueous polyurethane 5~90%, organosilicon-modified acrylic 5~90%, pH adjusting agent 0.1~ 1%, moistening flatting agent 0.1~0.8%, antifoaming agent 0.1~1%, curing agent 1~5%, cosolvent 1~40%.
The main component of finger sweat is water, accounts for about the 98% of total ingredient, finger sweat further include a small amount of urea and Grease accounts for about the 1~2% of total ingredient.Wherein, lubricant component is mainly by 40% triglyceride (triglycerides), 25% Monoester wax (wax monoesters), 15% free fatty acids (free fatty acids), 12% squalene (squalene) and 7% other materials form, these are all very easy in product surface fingerprints trace, must in order to achieve the purpose that resistance and fingerprint resistance It must make product surface that there is hydrophobic, oleophobic.
The surface of product surface can be the key factor for determining resistance and fingerprint resistance, and the surface of water can (γw) it is 72mN/m, it is most of It the surface of grease can (γl) in 20~40mN/m, when the surface of the product of preparation can (γa) less than the surface energy (γ of sweats) When, the sweat of finger surface is just not easy to be attached to product surface, so as to achieve the effect that resistance and fingerprint resistance.Currently used low-surface-energy Material is organosilicon, organic fluoride class.The surface of organic fluoride class substance-CF3 groups can as low as 10mN/m, be current minimum surface energy Resistance and fingerprint resistance material, but the genotoxic potential of fluorine component and expensive price have seriously affected it in commodity packaging in system Using.Organic siliconresin is containing the high polymer that organic group is connected on Si-O-Si structures, silicon atom, silicon atom in strand Electronegativity is relatively low, and Si-O-Si bond energys, bond angle are bigger than C-C key, and strand compliance is high, and this special valence bond structure makes it With many excellent physics for being different from carbon-based polymer, chemical property, such as high temperature resistant, wear-resisting, corrosion-resistant, surface can it is small, The features such as film forming ability is strong, organosilicon-modified acrylic film coated surface can be about 23mN/m, and there is no poison for organic silicon substance The release loss problem of object, has good anti-fouling effect.
For a hydrophobic surface of solids, product surface and water contact angle not only with surface energy it is related also and table Surface roughness is related, when there is microspike on surface, has some air between water and the surface of solids, to be caused by " pass is arrived " Small water droplet is largely contacted with air, and be in direct contact area with solid greatly reduces instead, since the surface tension effects of water make Water is shunk in this rough surface, and such surface is just provided with the ability of anti-pollution.On the surface of material after aqueous polyurethane film forming It with concave-convex alternate micro-sphere structure, can make incident light that diffusing reflection occur, so as to achieve the effect that from delustring, and study hair It is existing, when the depth at surface indentation position is relatively larger than the height of finger dermal papilla streakline, finger contact coating surface phase interaction Used time can only leave less clearly fingerprint form at surface indentation position, weaken the trace and retention time of fingerprint significantly.
Relative to the prior art, the present invention is combined using organosilicon-modified acrylic with aqueous polyurethane component, makes low table Face energy organosilicon-modified acrylic is evenly coated at aqueous polyurethane microsphere surface by chemical crosslinking, so as to gather low-surface-energy It closes the chemical anti-pollution effect of object and the physics anti-pollution effect of concaveconvex structure plays mutually synergistic effect, and coordinates pH adjusting agent, wetting Levelling agent, antifoaming agent, curing agent and co-solvent component rationally adjust each group distribution ratio, so as to keep coating good print While, make coating that there are good permeability (light transmittance is more than 90%), good matte effect (60 ° of lower glossiness < 2.5), good scratch resistant property (after rubbing 1000 times under 1000g weights pressure, the variation of only slight glossiness, 60 ° of lower glossiness variations<0.5, and scratch completely disappears after a period of time) and good anti-finger printing.
Further, the anti-scraping coating of the environmentally friendly resistance and fingerprint resistance includes following component by mass percentage:Aqueous polyurethane 50~90%, organosilicon-modified acrylic 5~40%, pH adjusting agent 0.1~1%, moistening flatting agent 0.5~0.8%, antifoaming agent 0.4~0.8%, curing agent 1~5%, cosolvent 2~40%.
Further, the polyaminoester microball grain size in the aqueous polyurethane is 700nm~10 μm.Preferably, the water Property polyurethane be the aqueous polyurethane dispersion, in the particle size range, aqueous polyurethane dispersion film forming after in material Surface has concave-convex alternate micron-nanometer micro-sphere structure, makes the depth at surface indentation position relatively larger than finger dermal papilla The height of streakline so as to weaken the fingerprint trace left during finger contact coating surface, improves the anti-finger printing of coating.
Further, the aqueous polyurethane is polycarbonate polyurethane or the one or two of polyester polyurethane. Preferably, the polycarbonate polyurethane is fatty poly-ester carbonate type polyurethane.Fatty poly-ester carbonate or polyester molecule Structure assigns excellent wear-resisting, the suitable hardness of coating and good permeability.Compared with other polyurethane from delustring, poly- carbonic acid Containing-[O-R-O-CO]-structure in the strand of ester structure, penylene base, ester group in strand make strand belong to rigid chain, Glass transition temperature (Tg) 150 DEG C are up to, make it have excellent mechanical property, while urea groups in polyurethane structural (- NHCONH-, cohesive energy > 36.5kJ/mol) and carbamate groups (- NHCOO-, cohesive energy 36.4kJ/mol) cohesive energy Height is not easily broken after film forming, good with base material adhesive force, and the coating so as to be formed has excellent wearability and resistance to scraping.
Further, 10 DEG C of the minimum film formation temperature < of the organosilicon-modified acrylic, glass transition temperature < 10 ℃.Preferably, the organosilicon-modified acrylic is organosilicon-modified acrylic emulsion.
Further, the organosilicon-modified acrylic is organic-silicon-modified self-crosslinking acrylic.Self-crosslinking acrylic into The acrylic acid of reticular structure can be voluntarily cross-linked into during film between polymer chain, the mechanical strength of polymer can be improved.
Further, the organosilicon modifier in the organosilicon-modified acrylic is siliceous vinyl compound, is wrapped Include vinyl alkyl trichlorosilane, vinyl alkyl methoxy silane, vinyl alkyl Ethoxysilane, the third oxygen of vinyl alkyl One or more of base silane, vinyl alkyl polysiloxanes.Siliceous vinyl compound passes through free radical as modifying agent In polymerization methods access self-crosslinking acrylic Type of Collective object, enable polymer that there is relatively low surface.
Further, the pH adjusting agent be ammonium hydroxide, triethylamine, triethanolamine, N, in N- dimethylethanolamines, AMP-95 It is one or more.The AMP-95 is the 2-amino-2-methyl-1-propanol containing 5% moisture.Using above-mentioned substance conduct PH adjusting agent can adjust the acidity of coating, and act synergistically with aqueous polyurethane and organosilicon-modified acrylic, improve coating Viscosity and film forming.
Further, the moistening flatting agent for organosilicon compound, one kind in acetylenic glycols ethoxy compound or Two kinds.Using above-mentioned substance as moistening flatting agent, the surface tension of coating can be reduced, and with aqueous polyurethane and organosilicon Modified acroleic acid acts synergistically, and improves the flatness and uniformity of coating.
Further, the antifoaming agent is one or both of organosilicon compound, acetylenic glycols ethoxy compound. Using above-mentioned substance as antifoaming agent, the surface tension of coating can be reduced, foam is inhibited to generate, and with aqueous polyurethane and having Machine fluorine-silicon modified acrylic acts synergistically, and improves the flatness and uniformity of coating.
Further, the curing agent be to carboxyl, hydroxyl, ketone carbonyl chemically reactive compound, including different It is one or more in cyanate esters, adipic dihydrazide, aziridine cpd, carbodiimide compound.Using above-mentioned Substance can promote polymerisation, and act synergistically with aqueous polyurethane and organosilicon-modified acrylic, improve and apply as curing agent The hardness and adhesive force of layer.
Further, the cosolvent includes ethyl alcohol, ethylene glycol, isopropanol, N-Methyl pyrrolidone, N- N-ethyl pyrrole Ns Alkanone, butyl glycol ether, butyl, propandiol butyl ether acetate, diethylene glycol ether, diethylene glycol ether acetate In it is one or more.Using above-mentioned substance as cosolvent, act synergistically with aqueous polyurethane and organosilicon-modified acrylic, Improve solubility.
The present invention also provides a kind of application methods of the anti-scraping coating of environmentally friendly resistance and fingerprint resistance, include the following steps:
S1:Each component is mixed according to mass percent of the present invention, is configured to coating aqueous dispersion;
S2:By the coating aqueous dispersion to base material;
S3:To being applied to the coating after base material into the preliminary drying that trip temperature is 60~110 DEG C, the time is 40s~5min;
S4:To pre-baked coating into trip temperature be 45~130 DEG C, the time be 1h~5d curing, so as to obtain environmental protection Resistance and fingerprint resistance preventing from scraping film.
Relative to the prior art, coating of the invention meets the ripe industrialization process such as traditional roller coating, spraying, blade coating, Application method is simple and practicable;Also, the coating of the present invention is suitable for polypropylene film (PP), polyester film (PET), polyvinyl chloride A variety of film substrates such as film (PVC), polycarbonate film (PC), are respectively provided with good adhesion on all kinds of base materials, are applicable in Property it is wide, have stronger practicability and commercial promise;In addition, the coating of the present invention is floride-free, non-volatility organic matter (VOC) discharge, Free from extraneous odour generates, environmentally protective.
In order to better understand and implement, the invention will now be described in detail with reference to the accompanying drawings.
Description of the drawings
Fig. 1 is the structure diagram of environmentally friendly resistance and fingerprint resistance preventing from scraping film prepared by the present invention.
Fig. 2 is environmentally friendly resistance and fingerprint resistance preventing from scraping film and the anti-finger printing contrast test figure of common Matte film prepared by embodiment 1.
Specific embodiment
The anti-scraping coating of environmentally friendly resistance and fingerprint resistance of the present invention, by mass percentage including following component:Aqueous polyurethane 5~ 90%, organosilicon-modified acrylic 5~90%, pH adjusting agent 0.1~1%, moistening flatting agent 0.1~0.8%, antifoaming agent 0.1 ~1%, curing agent 1~5%, cosolvent 1~40%.
As what is advanced optimized, the anti-scraping coating of the environmental protection resistance and fingerprint resistance includes following component by mass percentage:Water Property polyurethane 50~90%, organosilicon-modified acrylic 5~40%, pH adjusting agent 0.1~1%, moistening flatting agent 0.5~ 0.8%, antifoaming agent 0.4~0.8%, curing agent 1~5%, cosolvent 2~40%.
Specifically, the aqueous polyurethane is aqueous from delustring dispersions of polyurethanes, preferably fatty poly-ester carbonate type The one or two of polyurethane or polyester polyurethane, polyaminoester microball grain size therein are 700nm~10 μm.
Specifically, the organosilicon-modified acrylic be organosilicon-modified acrylic emulsion, preferably it is organic-silicon-modified from Crosslinking acrylic acid emulsion, 10 DEG C of 10 DEG C of minimum film formation temperature <, glass transition temperature <, organosilicon modifier therein are Siliceous vinyl compound, including vinyl alkyl trichlorosilane, vinyl alkyl methoxy silane, vinyl alkyl ethyoxyl It is one or more in silane, vinyl alkyl npropoxysilane, vinyl alkyl polysiloxanes.
Specifically, the pH adjusting agent is ammonium hydroxide, triethylamine, triethanolamine, N, in N- dimethylethanolamines, AMP-95 It is one or more of.The moistening flatting agent is one or both of organosilicon compound, acetylenic glycols ethoxy compound.Institute Antifoaming agent is stated as one or both of organosilicon compound, acetylenic glycols ethoxy compound.The curing agent is to carboxylic Base, hydroxyl, ketone carbonyl chemically reactive compound, including isocyanate compound, adipic dihydrazide, aziridine chemical combination It is one or more in object, carbodiimide compound.The cosolvent includes ethyl alcohol, ethylene glycol, isopropanol, N- methylpyrroles Alkanone, N- ethyl pyrrolidones, butyl glycol ether, butyl, propandiol butyl ether acetate, diethylene glycol ether, two It is one or more in ethylene glycol ether acetate.
A kind of application method of the anti-scraping coating of environmentally friendly resistance and fingerprint resistance of the present invention, includes the following steps:
(1) each component of coating is mixed according to mass percent of the present invention, is configured to coating aqueous dispersion.Tool Body, each component of coating according to aqueous polyurethane, organosilicon-modified acrylic, pH adjusting agent, moistening flatting agent, antifoaming agent, The order addition mixing of curing agent, cosolvent.
(2) by coating aqueous dispersion obtained by step (1) to base material.Specifically, using roller coating technology by the coating Aqueous dispersion is transferred to base material, and wherein applicator roll is the steel anilox roll of chrome-faced, in base material PP, PET, PVC, PC film It is a kind of.
(3) to being applied to the coating after base material into the preliminary drying that trip temperature is 60~110 DEG C, the time is 40s~5min.
(4) it is 45~130 DEG C into trip temperature to the coating after preliminary drying surface drying, the time is the curing of 1h~5d, so as to be crosslinked Film forming obtains environmentally friendly resistance and fingerprint resistance preventing from scraping film.
Referring to Fig. 1, it is the structure diagram of environmentally friendly resistance and fingerprint resistance preventing from scraping film of the invention prepared, including base material 1 and apply The anti-scraping coating 2 of environmentally friendly resistance and fingerprint resistance being distributed on base material 1.
With reference to embodiment, test and attached drawing, the present invention is described in further detail, but the embodiment party of the present invention Formula is without being limited thereto.
Embodiment 1
Under the mixing speed of 600~1000rpm, by following mass fraction, each component sequentially adds, resistance to produced environment friendly The anti-scraping coating aqueous dispersion of fingerprint:67 parts of aqueous polyurethane dispersion, 20 parts of organosilicon-modified acrylic emulsion, pH adjusting agent 0.5 part, 0.8 part of moistening flatting agent, 0.7 part of antifoaming agent, 2.2 parts of curing agent, 10 parts of cosolvent.
Using the method for scraper roller coating by the anti-scraping coating aqueous dispersion of the environmentally friendly resistance and fingerprint resistance of above-mentioned preparation in two-way drawing Polypropylene stretched film (BOPP) surface;Preliminary drying is carried out to being applied to the coating after BOPP, preliminary drying temperature is 70 DEG C, time 60s; Coating after preliminary drying surface drying is cured, curing temperature is 50 DEG C, time 2d, forms environmentally friendly resistance and fingerprint resistance preventing from scraping film.
Embodiment 2
Under the mixing speed of 800~1000rpm, by following mass fraction, each component sequentially adds, resistance to produced environment friendly The anti-scraping coating aqueous dispersion of fingerprint:70 parts of aqueous polyurethane dispersion, 15 parts of organosilicon-modified acrylic emulsion, pH adjusting agent 0.3 part, 0.8 part of moistening flatting agent, 0.4 part of antifoaming agent, 2.5 parts of curing agent, 6 parts of cosolvent.
Using the method for scraper roller coating by the anti-scraping coating aqueous dispersion of the environmentally friendly resistance and fingerprint resistance of above-mentioned preparation in two-way drawing Stretched polyester film (BOPET) surface;Preliminary drying is carried out to being applied to the coating after BOPET, preliminary drying temperature is 110 DEG C, and the time is 40s;Coating after preliminary drying surface drying is cured, curing temperature is 60 DEG C, time 1d, forms environmentally friendly resistance and fingerprint resistance preventing from scraping film.
Embodiment 3
Under the mixing speed of 700~800rpm, by following mass fraction, each component sequentially adds, resistance to produced environment friendly The anti-scraping coating aqueous dispersion of fingerprint:75 parts of aqueous polyurethane dispersion, 15 parts of organosilicon-modified acrylic emulsion, pH adjusting agent 0.4 part, 0.9 part of moistening flatting agent, 0.8 part of antifoaming agent, 2.7 parts of curing agent, 6 parts of cosolvent.
Using the method for scraper roller coating by the anti-scraping coating aqueous dispersion of the environmentally friendly resistance and fingerprint resistance of above-mentioned preparation in two-way drawing Stretched polyester film (BOPET) surface;Preliminary drying is carried out to being applied to the coating after BOPET, preliminary drying temperature is 100 DEG C, and the time is 50s;Coating after preliminary drying surface drying is cured, curing temperature is 45 DEG C, time 2d, forms environmentally friendly resistance and fingerprint resistance preventing from scraping film.
Test
The anti-scraping coating of environmentally friendly resistance and fingerprint resistance of embodiment 1-3 is tested for the property, test result is as shown in table 1.
The performance test results of the anti-scraping coating of environmentally friendly resistance and fingerprint resistance of 1 embodiment 1-3 of table
Test event Standard Embodiment 1 Embodiment 2 Embodiment 3
Viscosity (mPas) - 380 365 385
Solid content (%) GB/T 1725 31 30 30
pH GB/T 8325 8.0 8.5 8.0
The environmentally friendly resistance and fingerprint resistance preventing from scraping film of embodiment 1-3 is tested for the property, test result is as shown in table 2.
The performance test results of the environmentally friendly resistance and fingerprint resistance preventing from scraping film of 2 embodiment 1-3 of table
Test event Standard Embodiment 1 Embodiment 2 Embodiment 3
Light transmittance (%) GB/T2410 90.0 90.5 90.1
Mist degree (%) GB/T2410 85.0 86.1 85.1
Glossiness (60 °) GB/T8807 1.9 2.0 1.7
Scratch resistant property (secondary/1000g) - 1000 1000 1000
Wherein, scratch resistant property, which is tested, is specially:It, will with self-locking band using ZJ-339 type rubber alcohol abrasion-resistant testing machines Four layers of non-dust cloth are fixed on one section of a diameter of 10mm of friction hammer, with the speed of about 30mm/s in scratch resistant film surface the same area Linear reciprocation friction, and be primary back and forth with one, rub 1000 later preventing from scraping film tables under 1000g weights pressure Face only has slight glossiness variation, and (60 °, glossiness changes<0.5), and after being placed at room temperature for 5h scratch completely disappears, and illustrates this Coating prepared by invention has excellent scratch resistant property.
Other performance test of the present invention is carried out according to country or professional standard.From the test result in table as it can be seen that this hair Bright environmentally friendly resistance and fingerprint resistance preventing from scraping film also has good permeability (light transmittance is more than 90%) and good matte effect (under 60 ° Glossiness < 2.5).
In addition, the environmentally friendly resistance and fingerprint resistance preventing from scraping film to embodiment 1 carries out anti-finger printing test, fingerprint liquid is pressed on finger Film surface, and visual evaluation is done, test result is as shown in Figure 2.Wherein, A is state of the fingerprint in common dumb light film surface, and B is Fingerprint is in the state of the film surface of the embodiment of the present invention 1, it is seen then that compared to normal film, stays in the film surface of the embodiment of the present invention 1 Fingerprint trace it is very shallow, illustrate that the coating for preparing of the present invention has good anti-finger printing.
Relative to the prior art, the invention has the advantages that:(1) present invention incorporates low surface energy polymerics Chemical anti-pollution effect and the physics anti-pollution effect of micro/nano level concaveconvex structure, while coating good print is kept, make it With excellent anti-finger printing and scratch resistant property.(2) the present invention overcomes surface roughness cause coating permeability problem, really The printed matter protected after packaging fitting has no blind spot loss, and color rendition degree is good, while matte effect, good anti-finger printing and excellent Scratch resistant property make coating high-grade packages printing coatings art have certain application prospect.(3) coating of the invention has water Property, floride-free, VOC free discharge, no any peculiar smell generates, it is environmentally protective the advantages of.(4) coating of the invention meet traditional roller coating, The ripe industrialization process such as spraying, blade coating, application method is simple and practicable, and the coating of the present invention can be used for PP, PET, PVC, More kinds of film substrates of PC, are respectively provided with good adhesion, applicability is wide on all kinds of base materials.
Embodiment described above only expresses the several embodiments of the present invention, and description 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 those of ordinary skill in the art are come It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention Range.

Claims (10)

1. a kind of anti-scraping coating of environmental protection resistance and fingerprint resistance, it is characterised in that:Include following component by mass percentage:Aqueous polyurethane 5~90%, organosilicon-modified acrylic 5~90%, pH adjusting agent 0.1~1%, moistening flatting agent 0.1~0.8%, antifoaming agent 0.1~1%, curing agent 1~5%, cosolvent 1~40%.
2. the anti-scraping coating of environmental protection resistance and fingerprint resistance according to claim 1, it is characterised in that:Poly- ammonia in the aqueous polyurethane Ester microsphere grain size is 700nm~10 μm.
3. the anti-scraping coating of environmental protection resistance and fingerprint resistance according to claim 1, it is characterised in that:The aqueous polyurethane is poly- carbonic acid The one or two of ester type polyurethane or polyester polyurethane.
4. the anti-scraping coating of environmental protection resistance and fingerprint resistance according to claim 1, it is characterised in that:The organosilicon-modified acrylic 10 DEG C of 10 DEG C of minimum film formation temperature <, glass transition temperature <.
5. the anti-scraping coating of environmental protection resistance and fingerprint resistance according to claim 1, it is characterised in that:The organosilicon-modified acrylic is Organic-silicon-modified self-crosslinking acrylic.
6. the anti-scraping coating of environmental protection resistance and fingerprint resistance according to claim 1, it is characterised in that:In the organosilicon-modified acrylic Organosilicon modifier for siliceous vinyl compound, including vinyl alkyl trichlorosilane, vinyl alkyl methoxyl group silicon Alkane, vinyl alkyl Ethoxysilane, vinyl alkyl npropoxysilane, one kind in vinyl alkyl polysiloxanes or several Kind.
7. according to any anti-scraping coatings of environmentally friendly resistance and fingerprint resistance of claim 1-6, it is characterised in that:The pH adjusting agent is ammonia Water, triethylamine, triethanolamine, N, it is one or more in N- dimethylethanolamines, AMP-95.
8. according to any anti-scraping coatings of environmentally friendly resistance and fingerprint resistance of claim 1-6, it is characterised in that:The moistening flatting agent is One or both of organosilicon compound, acetylenic glycols ethoxy compound;The antifoaming agent is organosilicon compound, alkynes One or both of diol ethoxylate chemical combination object.
9. according to any anti-scraping coatings of environmentally friendly resistance and fingerprint resistance of claim 1-6, it is characterised in that:The curing agent is pair Carboxyl, hydroxyl, ketone carbonyl chemically reactive compound, including isocyanate compound, adipic dihydrazide, aziridine It closes one or more in object, carbodiimide compound;The cosolvent includes ethyl alcohol, ethylene glycol, isopropanol, N- methyl pyrroles Pyrrolidone, N- ethyl pyrrolidones, butyl glycol ether, butyl, propandiol butyl ether acetate, diethylene glycol ether, It is one or more in diethylene glycol ether acetate.
10. a kind of application method of the anti-scraping coating of environmental protection resistance and fingerprint resistance, it is characterised in that:Include the following steps:
S1:Each component is mixed according to claim 1-6 any mass percents, is configured to coating aqueous dispersion;
S2:By the coating aqueous dispersion to base material;
S3:To being applied to the coating after base material into the preliminary drying that trip temperature is 60~110 DEG C, the time is 40s~5min;
S4:Into trip temperature it is 45~130 DEG C to pre-baked coating, the time is the curing of 1h~5d, so as to obtain the resistance to finger of environmental protection Line preventing from scraping film.
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CN112011076B (en) * 2020-08-10 2022-09-30 江门市玛斯特包装有限公司 Packaging bag with rough surface and preparation method thereof
CN116622285A (en) * 2023-05-16 2023-08-22 湖南松井新材料股份有限公司 Water-based UV hand feeling coating and preparation method and application thereof
CN116622285B (en) * 2023-05-16 2024-07-19 湖南松井新材料股份有限公司 Water-based UV hand feeling coating and preparation method and application thereof

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