CN103396732A - PVC (polyvinyl chloride) elastic mirror anti-scraping agent and process for preparing elastic mirror anti-scraping PVC film by applying PVC elastic mirror anti-scraping agent - Google Patents
PVC (polyvinyl chloride) elastic mirror anti-scraping agent and process for preparing elastic mirror anti-scraping PVC film by applying PVC elastic mirror anti-scraping agent Download PDFInfo
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Abstract
The invention relates to the technical field of PVC (polyvinyl chloride) films, and in particular relates to a PVC elastic mirror anti-scraping agent and a process for preparing an elastic mirror anti-scraping PVC film by applying the PVC elastic mirror anti-scraping agent. The process for preparing the elastic mirror anti-scraping PVC film comprises the following process steps of: taking a PVC film as a base film; uniformly mixing and stirring UV (ultraviolet) polyurethane or UV polyester, a quick-drying organic solvent and a slow-drying organic solvent in parts by weight to prepare an anti-scraping agent; putting the anti-scraping agent into a coating trough of a coating machine; uniformly coating the anti-scraping agent on the surface of the PVC film by utilizing a mesh roller to form an anti-scraping coating; baking the anti-scraping coating coated PVC film; performing photocuring radiation on the baked PVC film by the ultraviolet ray of a UV lamp to prepare the PVC elastic mirror anti-scraping film finished product. The PVC elastic mirror anti-scraping film is excellent in anti-scraping effect, high in tensile strength and good in elasticity, and is hard to burst when being molded or blistered; and the preparation method is simple in process and high in production efficiency.
Description
Technical field
The present invention relates to PVC thin film technique field, relate in particular to a kind of PVC elasticity minute surface scratch resistance agent and apply the technique that it prepares the anti-scratch PVC film of elasticity minute surface.
Background technology
At present; the PVC film obtains widespread use as a kind of synthetic materials; sunken in order to prevent from colliding, press, wipe the damage of the effect of various mechanical forces such as drawing to article; the PVC film is applied in the products such as home decoration, household electrical appliances, furniture, automotive trim mostly as a kind of protective membrane; therefore the PVC film need possess enough anti-scratch property; can tackle the wearing and tearing in various wipings, slight impact and the materials processing application process in daily life, otherwise its work-ing life is extremely short.Yet, the scratch resistance poor-performing of the not surface treated PVC film of tradition, the PVC film that has coating to process has appearred on the market, it has improved the scrath resistance of PVC film to a certain extent, yet its tensile strength is lower, and elasticity is poor, easy explosion when moulding or plastic uptake, and surface brightness is low, is difficult to satisfy the demands of consumers.
Summary of the invention
The object of the invention is to for the deficiencies in the prior art, and the PVC elasticity minute surface that a kind of tensile strength is high, luminance brightness is high scratch resistance agent is provided.
Another object of the present invention is to provide a kind of PVC of application elasticity minute surface scratch resistance agent to prepare the technique of the anti-scratch PVC film of elasticity minute surface for the deficiencies in the prior art.
The present invention is achieved through the following technical solutions.
A kind of PVC elasticity minute surface scratch resistance agent, it is comprised of the raw material of following weight part:
UV urethane or UV polyester 30-50 part
Quick-dry type organic solvent 20-40 part
Slow curing type organic solvent 20-30 part.
UV urethane is polyurethane(s), it is the general designation that contains the macromolecular cpd of repetition carbamate groups on main chain, it is to be formed by organic diisocyanate or polyisocyanates and dihydroxyl or polyol addition polymerization, it is a kind of reactive prepolymer, can utilize UV-light (UV) or visible light to be cured, glue-line after solidifying has the two advantage of polyacrylic ester and urethane concurrently, the snappiness that urethane is namely arranged, wear resistance, strong adhesion, the weathering resistance that resistance to deterioration and high-tear strength and polyacrylic ester are good and excellent many-sided overall merits such as chemical property, owing to can adopting UV to solidify or visible-light curing, aspect minimizing topsoil and the saving energy, excellent effect is being arranged all, can meet extensive, the needs of high-speed and continuous production, the demand for development that meets present environment-friendly type adhesives.
Wherein, the model that described UV urethane is permanent light is 7600 urethane acrylate, outward appearance: water white transparency viscous fluid, viscosity (mpa.s): 62000-75000(25 ℃), solid content: 100%, functionality: 6, color and luster (Fe-Co) :≤1, nco value (mgKOH/g): 0.The 7600-urethane acrylate is six functionality resins, high reaction activity, low viscosity, solidified coating has excellent solvent resistance, resistance to marring and wear resisting property, hardness is high, suitably flexible, anti-xanthochromia, have excellent weather resistance, to PVC, PC, ABS, PMMA, PET(surface treatment), the multiple plastic rubber substrate such as TAC has good adhesion property.
UV urethane is that the model of Shenzhen Sa Bisi is the urethane acrylate of SM-16, its functionality: 2, viscosity: 8000-16000cps, second-order transition temperature: 80 ℃, non-volatile minute:>99%, SM-16 has outstanding sticking power, the characteristics such as solidification rate is fast, has wear-resisting, anti-scratch performance strong, and is detachable, and the good brightness of filming, anti-xanthochromia, film is hard and tough not easy to crack.
UV urethane is the urethane acrylate of J512-2 for the model of Jiang Gao's chemical industry, its functionality: 2, and viscosity: 8000-15000cps, nco value (mgKOH/g) :≤0.2.The J512-2 curing speed is fast, gloss is splendid, anti-xanthochromia is good, levelling is good, hardness is high, scratch resistance, sticking power is good, snappiness is good.
UV urethane is the urethane acrylate of UV-214 for for nation, solidifying the model of learning, the UV-214 appearance transparent, and solid content is: 50 ± 1%, the sticking power excellence, corrodibility is little, and levelling property is good, fullness ratio is good, and glossiness is good, wear resistance and snappiness excellence.
The UV polyester is polyester acrylate (PEA), and the characteristics such as polyester acrylate (PEA) has that viscosity is low, flexible, lighter color, price are low, be widely used as the UV tackiness agent, the toughner of UV printing ink and other UV coating.
The model that described UV polyester is permanent light is 5360 polyester acrylate, outward appearance: colourless or micro-yellow transparent liquid, viscosity (mpa.s): 30000-45000(25 ℃), functionality: 3, color and luster (Fe-Co): the glossiness of≤1,5360-polyester acrylate is high, fullness ratio good, sticking power is good, snappiness is good.
The UV polyester is that the model of Shenzhen Sa Bisi is the polyester acrylate of PAR-500, functionality: 2.5, viscosity: 1500-3000 cps, non-volatile: greater than 99%, PAR-500 is a kind of functional oligopolymer of high cross-linking efficiency of low acid number, have good one-tenth film hardness and toughness balance, outstanding pigment, dyestuff affinity and spraying application, and low-shrinkage, chemical-resistant is good.
The UV polyester is the polyester acrylate of A126-2 for the model of Jiang Gao's chemical industry, and its outward appearance is colourless or light yellow transparent thick liquid, functionality: 2, and viscosity: 2000-3000 cps, the A126-2 snappiness is good, sticking power is splendid, can promote the levelling of resin.
Wherein, a kind of in the described quick-dry type organic solvent mixture that is ethyl ester, butanone, Virahol, butanone and Virahol.
The chemical formula of ethyl ester is: C
3H
6O
2, relative density (water=1): 1.026g/cm3, boiling point: 180.8 ℃, fusing point :-45 ℃, flash-point: 84 ℃, point of ignition: 295 ℃, ethyl ester is colourless or micro-yellow transparent liquid, and fruit fragrance is arranged, and is soluble in water, can be miscible in most organic solvents.
The molecular formula of butanone is CH
3CH
2COCH
3, claiming again methylethylketone, methyl ethyl ketone, 2-butanone, general factory is called MEK.The butanone colourless transparent liquid, relative density: (d204) 0.805, zero pour :-86 ℃, boiling point: 79.6 ℃, refractive index (n15D): 1.3814, flash-point: 1.1 ℃, butanone has similar acetone smell, and is volatile, can be miscible with ethanol, ether, benzene, chloroform, oils, be dissolved in 4 parts of water, can form azeotropic mixture (moisture 11.3%) with water, 73.4 ℃ of azeotropic points (containing butanone 88.7%).Butanone is mainly as solvent, and as for coatings industry and various kinds of resin solvent, its advantage is that solvability is strong, and volatility is lower than acetone, belongs to the mid-boiling point ketones solvent.
The another name of Virahol is dimethylcarbinol or 2-propyl alcohol, in industry, also does: IPA.Its chemical formula: C
3H
8O, molecular weight: 60.07.Virahol is n-propyl alcohol CH
3-CH
2-CH
2The isomers of OH, it is the water white transparency volatile liquid, the smell like ethanol and acetone mixture is arranged, density: 0.78505(Water=1), boiling point: 82.5 ° of C(180.5 °F), fusing point :-88.5 ° of C(-127.3 °F), stagnation point: 235 ° of C(455 °F), spontaneous ignition temperature: 425 ℃, flash-point: 12 ℃ (closed-cup), vapour density: 2.07(air Air=1), 20 ° of C of vapour pressure: 4.4kPa(@), specific refractory power: 1.3776.Most organic solvents such as Virahol can be water-soluble, pure, ether, benzene, chloroform, can be miscible with water, alcohol, ether, and can form azeotrope with water.
Wherein, described slow curing type organic solvent is butyl ester or toluene.
Butyl ester is the abbreviation of butylacetate or N-BUTYL ACETATE, chemical formula: C
6H
12O
2, relative molecular weight or nucleidic mass: 111.16, density: 0.871, fusing point (℃) :-99, boiling point (℃): 118, flash-point (℃): 30, the 18(enclosed), specific refractory power: 1.3907(19 ℃), be colourless transparent liquid, the fruital smell is arranged, can be miscible with alcohol, ketone, ether and common organic solvents, be insoluble in water, because of its low water content, therefore can be used as solvent and the thinner of UV urethane.
Toluene is organic compound, belongs to aromatic hydrocarbon, and molecular formula is C
6H
5CH
3, being at normal temperatures liquid, colourless, inflammable, its boiling point is 110.8 ℃, and zero pour is-95 ℃, and density is 0.866 gram per centimeter
3, toluene is water-soluble (0.52 g/l) hardly, but can and dithiocarbonic anhydride, alcohol, ether is miscible with arbitrary proportion, in chloroform, acetone and other organic solvents commonly used of great majority, good solvability is also arranged, and is industrial good solvent.
Preferably, a kind of PVC elasticity minute surface scratch resistance agent, it is comprised of the raw material of following weight part:
UV urethane 30-45 part
Ethyl ester 25-40 part
Butyl ester 22-30 part.
Preferred, a kind of PVC elasticity minute surface scratch resistance agent, it is comprised of the raw material of following weight part:
UV polyester 35-50 part
Butanone 20-35 part
Butyl ester 20-28 part.
Another is preferred, a kind of PVC elasticity minute surface scratch resistance agent, and it is comprised of the raw material of following weight part:
UV polyester 35-45 part
Virahol 25-35 part
Toluene 24-28 part.
Another is preferred, a kind of PVC elasticity minute surface scratch resistance agent, and it is comprised of the raw material of following weight part:
UV polyester 35-40 part
Butanone 10-20 part
Virahol 10-20 part
Toluene 24-26 part.
Preferably, a kind of PVC elasticity minute surface scratch resistance agent, it is comprised of the raw material of following weight part:
UV urethane 40-45 part
Butanone 10-20 part
Virahol 10-20 part
Toluene 25-30 part.
The preparation method of the anti-scratch film of above-mentioned PVC elasticity minute surface comprises following processing step:
A, get basement membrane, described basement membrane is the PVC film.
B, by UV urethane or UV polyester, quick-dry type organic solvent, slow curing type organic solvent mixing and stirring by weight, be modulated into scratch resistance agent.
C, the scratch resistance agent that modulates in step b is dropped in the coating chute of coating machine.
D, in coating chute, select and be carved with the net roller that is woven into reticulate pattern by netting twine, the coating direction that makes the net roller is coated with described PVC film with respect to the feedstock direction of PVC film, forms anti-scratch coating; During coating, the bottom of net roller is immersed in the scratch resistance agent oil plant, guarantees to be evenly equipped with the scratch resistance agent oil plant in the reticulate pattern of net roller, and net roller coat cloth direction is opposite with the feedstock direction of PVC film, be conducive to the scratch resistance agent oil plant on the net roller evenly is applied on the PVC film, Painting effect is good.Preferably, the net roller is the round roller that is carved with rhombus or hexagonal reticulate pattern, the distribution density of the reticulate pattern on this round roller is 130～300 orders, the surface covered of net roller is 20～50m/min, guarantee that the anti-scratch coating glue spread that is coated with is moderate on the PVC film, be coated with good evenness, be conducive to improve the quality of the anti-film of PVC elasticity minute surface.
E, the PVC film that will be coated with anti-scratch coating are transported on drying unit and carry out drying and processing, after anti-scratch coated and dried, are the anti-scratch film of PVC elasticity minute surface, make the PVC film work in-process that load has the anti-scratch film of PVC elasticity minute surface;
F, the PVC film work in-process of handling well in step e are carried out to the photocuring irradiation with the ultraviolet ray of UV lamp, make the anti-scratch PVC finished film of elasticity minute surface.
Wherein, described step e is specially: the PVC film that will be coated with anti-scratch coating is transported on drying unit and carries out drying and processing, drying unit comprises the drying tunnel that three joints are communicated with successively, the temperature of three joint drying tunnels is followed successively by 60～80 ℃, 90～110 ℃, 110～130 ℃, and the time of drying and processing is 8-20s; The temperature of the first to the 3rd joint drying tunnel rises gradually, and the lower temperature of first segment drying tunnel employing is conducive to improve the levelling property of scratch resistance agent material loading, guarantees the homogeneity of the anti-scratch coating on the PVC film; The temperature of the second to the 3rd joint drying tunnel raises gradually, be conducive to anti-scratch coating is dried rapidly, guarantee that anti-scratch coating can the steady surface that is fixed on the PVC film firmly, improve the quality of the anti-scratch film of PVC elasticity minute surface of the present invention, simultaneously can improve working (machining) efficiency, reduce costs.
Wherein, in described step f, the ultraviolet intensity of UV lamp is 280-350 mj/cm
2, the UV lamp ultraviolet irradiation time is 1-3s.The uviolizing of UV lamp can be carried out drying by the UV coating in anti-scratch coating, guarantee final product quality, and the ultraviolet intensity of UV lamp is large, and the ultraviolet irradiation time only needs 1-3s by the oven dry of PVC film work in-process, greatly to enhance productivity.
Wherein, in described step b, the viscosity of scratch resistance agent is 30～50cps, and the modest viscosity of scratch resistance agent guarantees that the glue spread of the anti-scratch coating on the PVC film in the process of coating is moderate, the coating good evenness; In described steps d, the thickness of anti-scratch coating is 2～6 μ m, and the thickness of anti-scratch coating is thick, is beneficial to the raising surface brightness.
Beneficial effect of the present invention is: PVC elasticity minute surface scratch resistance agent of the present invention has adopted UV urethane or UV polyester and quick-dry type organic solvent, slow curing type organic solvent mixes, the anti-scratch effect of the anti-scratch PVC film of the elasticity minute surface of making is splendid, snappiness is splendid, scrath resistance is strong, tensile strength is high, good springiness, when moulding or plastic uptake, be difficult for explosion, and the glossiness of UV urethane or UV polyester is high, high with its anti-scratch PVC film light of elasticity minute surface brightness of making, the effect that minute surface is arranged, can play good decorative effect, can satisfy the demands of consumers.
The preparation method of the anti-scratch PVC film of elasticity minute surface of the present invention, adopt the method for anti-scratch coating that directly is coated with on the PVC basement membrane, preparation technology is simple, and adopt UV lamp ultraviolet ray antagonism scraping coating to carry out photocuring, production efficiency is high, required production unit is few, can reduce costs, and is conducive to generally apply.
Embodiment
The present invention is further illustrated below in conjunction with embodiment.
Embodiment 1.
A kind of PVC elasticity minute surface scratch resistance agent of the present embodiment comprises following processing step:
A, get basement membrane, described basement membrane is the PVC film;
B, by 50 parts of UV urethane, 30 parts of ethyl esters, 20 parts of butyl ester mixing and stirring, be modulated into scratch resistance agent, the viscosity of scratch resistance agent is 50cps;
C, the scratch resistance agent that modulates in step b is dropped in the coating chute of coating machine;
D, in coating chute, select and be carved with the net roller that is woven into 300 order reticulate patterns by netting twine, the coating direction that makes the net roller is coated with described PVC film with respect to the feedstock direction of PVC film, the surface covered of net roller is 50m/min, forms anti-scratch coating, and the thickness of anti-scratch coating is 2 μ m;
E, the PVC film that will be coated with anti-scratch coating are transported on drying unit and carry out drying and processing, after anti-scratch coated and dried, are the anti-scratch film of PVC elasticity minute surface, make the PVC film work in-process that load has the anti-scratch film of PVC elasticity minute surface; Drying unit comprises the drying tunnel that three joints are communicated with successively, and the temperature of three joint drying tunnels is followed successively by 80 ℃, 110 ℃, 130 ℃, and the time of drying and processing is 8s;
F, the PVC film work in-process of handling well in step e are carried out to the photocuring irradiation with the ultraviolet ray of UV lamp, the ultraviolet intensity of UV lamp is 350 mj/cm
2, the UV lamp ultraviolet irradiation time is 1s, makes the anti-scratch PVC finished film of elasticity minute surface.
Embodiment 2.
A kind of PVC elasticity minute surface scratch resistance agent of the present embodiment comprises following processing step:
A, get basement membrane, described basement membrane is the PVC film;
B, by 45 parts of UV polyester, 25 parts of Virahols, 28 parts of toluene mixing and stirring, be modulated into scratch resistance agent, the viscosity of scratch resistance agent is 46cps;
C, the scratch resistance agent that modulates in step b is dropped in the coating chute of coating machine;
D, in coating chute, select and be carved with the net roller that is woven into 250 order reticulate patterns by netting twine, the coating direction that makes the net roller is coated with described PVC film with respect to the feedstock direction of PVC film, the surface covered of net roller is 40m/min, forms anti-scratch coating, and the thickness of anti-scratch coating is 3 μ m;
E, the PVC film that will be coated with anti-scratch coating are transported on drying unit and carry out drying and processing, after anti-scratch coated and dried, are the anti-scratch film of PVC elasticity minute surface, make the PVC film work in-process that load has the anti-scratch film of PVC elasticity minute surface; Drying unit comprises the drying tunnel that three joints are communicated with successively, and the temperature of three joint drying tunnels is followed successively by 75 ℃, 105 ℃, 125 ℃, and the time of drying and processing is 12s;
F, the PVC film work in-process of handling well in step e are carried out to the photocuring irradiation with the ultraviolet ray of UV lamp, the ultraviolet intensity of UV lamp is 330 mj/cm
2, the UV lamp ultraviolet irradiation time is 1.5s, makes the anti-scratch PVC finished film of elasticity minute surface.
Embodiment 3.
A kind of PVC elasticity minute surface scratch resistance agent of the present embodiment comprises following processing step:
A, get basement membrane, described basement membrane is the PVC film;
B, by 35 parts of UV polyester, 10 parts of butanone, 10 parts of Virahols, 25 parts of toluene mixing and stirring, be modulated into scratch resistance agent, the viscosity of scratch resistance agent is 42cps;
C, the scratch resistance agent that modulates in step b is dropped in the coating chute of coating machine;
D, in coating chute, select and be carved with the net roller that is woven into 200 order reticulate patterns by netting twine, the coating direction that makes the net roller is coated with described PVC film with respect to the feedstock direction of PVC film, the surface covered of net roller is 35m/min, forms anti-scratch coating, and the thickness of anti-scratch coating is 4 μ m;
E, the PVC film that will be coated with anti-scratch coating are transported on drying unit and carry out drying and processing, after anti-scratch coated and dried, are the anti-scratch film of PVC elasticity minute surface, make the PVC film work in-process that load has the anti-scratch film of PVC elasticity minute surface; Drying unit comprises the drying tunnel that three joints are communicated with successively, and the temperature of three joint drying tunnels is followed successively by 70 ℃, 100 ℃, 120 ℃, and the time of drying and processing is 14s;
F, the PVC film work in-process of handling well in step e are carried out to the photocuring irradiation with the ultraviolet ray of UV lamp, the ultraviolet intensity of UV lamp is 315 mj/cm
2, the UV lamp ultraviolet irradiation time is 2s, makes the anti-scratch PVC finished film of elasticity minute surface.
Embodiment 4.
A kind of PVC elasticity minute surface scratch resistance agent of the present embodiment comprises following processing step:
A, get basement membrane, described basement membrane is the PVC film;
B, by 40 parts of UV urethane, 30 parts of butanone, 25 parts of toluene mixing and stirring, be modulated into scratch resistance agent, the viscosity of scratch resistance agent is 36cps;
C, the scratch resistance agent that modulates in step b is dropped in the coating chute of coating machine;
D, in coating chute, select and be carved with the net roller that is woven into 160 order reticulate patterns by netting twine, the coating direction that makes the net roller is coated with described PVC film with respect to the feedstock direction of PVC film, the surface covered of net roller is 30m/min, forms anti-scratch coating, and the thickness of anti-scratch coating is 5 μ m;
E, the PVC film that will be coated with anti-scratch coating are transported on drying unit and carry out drying and processing, after anti-scratch coated and dried, are the anti-scratch film of PVC elasticity minute surface, make the PVC film work in-process that load has the anti-scratch film of PVC elasticity minute surface; Drying unit comprises the drying tunnel that three joints are communicated with successively, and the temperature of three joint drying tunnels is followed successively by 65 ℃, 95 ℃, 115 ℃, and the time of drying and processing is 16s;
F, the PVC film work in-process of handling well in step e are carried out to the photocuring irradiation with the ultraviolet ray of UV lamp, the ultraviolet intensity of UV lamp is 300 mj/cm
2, the UV lamp ultraviolet irradiation time is 2.5s, makes the anti-scratch PVC finished film of elasticity minute surface.
Embodiment 5.
A kind of PVC elasticity minute surface scratch resistance agent of the present embodiment comprises following processing step:
A, get basement membrane, described basement membrane is the PVC film;
B, by 40 parts of UV urethane, 15 parts of butanone, 15 parts of Virahols, 30 parts of toluene mixing and stirring, be modulated into scratch resistance agent, the viscosity of scratch resistance agent is 30cps;
C, the scratch resistance agent that modulates in step b is dropped in the coating chute of coating machine;
D, in coating chute, select and be carved with the net roller that is woven into 130 order reticulate patterns by netting twine, the coating direction that makes the net roller is coated with described PVC film with respect to the feedstock direction of PVC film, the surface covered of net roller is 20m/min, forms anti-scratch coating, and the thickness of anti-scratch coating is 6 μ m;
E, the PVC film that will be coated with anti-scratch coating are transported on drying unit and carry out drying and processing, after anti-scratch coated and dried, are the anti-scratch film of PVC elasticity minute surface, make the PVC film work in-process that load has the anti-scratch film of PVC elasticity minute surface; Drying unit comprises the drying tunnel that three joints are communicated with successively, and the temperature of three joint drying tunnels is followed successively by 60 ℃, 90 ℃, 110 ℃, and the time of drying and processing is 20s;
F, the PVC film work in-process of handling well in step e are carried out to the photocuring irradiation with the ultraviolet ray of UV lamp, the ultraviolet intensity of UV lamp is 280 mj/cm
2, the UV lamp ultraviolet irradiation time is 3s, makes the anti-scratch PVC finished film of elasticity minute surface.
Properties test index such as the table 1 of the anti-scratch film of PVC elasticity minute surface that embodiment 1 ~ embodiment 5 makes.
Table 1.
| Interventions Requested | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 |
| Surface hardness | 2H | 2H | 2H | 2H | 2H |
| Glossiness | 99 | 100 | 99 | 99 | 100 |
| Moulding or plastic uptake unit elongation | Without be full of cracks | Without be full of cracks | Without be full of cracks | Without be full of cracks | Without be full of cracks |
| Tensile strength (vertical/horizontal stroke) Mpa | 165.2/370.5 | 170.3/376.2 | 174.1/377.8 | 178.4/380.8 | 180.5/381.6 |
From the properties test index of embodiment 1 ~ embodiment 6, can find out, the anti-scratch film of PVC elasticity minute surface that the present invention makes is attached on the PVC film, make the tensile strength of PVC film can reach 165.2～180.5/370.5～381.6, greatly improve its elasticity, and at the temperature of 130 ℃, when the degree of depth is the die surface plastic uptake of 2cm without be full of cracks, when plastics sucking moulding or plastic uptake, be difficult for explosion, and surface hardness can reach the 2H level, surface hardness is large, scrath resistance is strong, glossiness is increased to 99～100 by original 92, has advantages of Gao Guang.
Finally should be noted that; above embodiment is only in order to illustrate technical scheme of the present invention; but not limiting the scope of the invention; although with reference to preferred embodiment, the present invention has been done to explain; those of ordinary skill in the art is to be understood that; can modify or be equal to replacement technical scheme of the present invention, and not break away from essence and the scope of technical solution of the present invention.
Claims (10)
1. PVC elasticity minute surface scratch resistance agent, it is characterized in that: it is comprised of the raw material of following weight part:
UV urethane or UV polyester 30-50 part
Quick-dry type organic solvent 20-40 part
Slow curing type organic solvent 20-30 part;
Wherein, the described UV urethane model that is permanent light is that the model of 7600 urethane acrylate, Shenzhen Sa Bisi is that the model of the urethane acrylate of SM-16, Jiang Gao's chemical industry is that a kind of in the urethane acrylate that the model of learning is UV-214 solidified in urethane acrylate, the nation of J512-2;
The model that described UV polyester is permanent light is that the model of 5360 polyester acrylate, Shenzhen Sa Bisi is that the model of the polyester acrylate of PAR-500, Jiang Gao's chemical industry is a kind of in the polyester acrylate of A126-2;
Wherein, a kind of in the described quick-dry type organic solvent mixture that is ethyl ester, butanone, Virahol, butanone and Virahol;
Wherein, described slow curing type organic solvent is butyl ester or toluene.
2. a kind of PVC elasticity minute surface scratch resistance agent according to claim 1, it is characterized in that: it is comprised of the raw material of following weight part:
UV urethane 30-45 part
Ethyl ester 25-40 part
Butyl ester 22-30 part.
3. a kind of PVC elasticity minute surface scratch resistance agent according to claim 1, it is characterized in that: it is comprised of the raw material of following weight part:
UV polyester 35-50 part
Butanone 20-35 part
Butyl ester 20-28 part.
4. a kind of PVC elasticity minute surface scratch resistance agent according to claim 1, it is characterized in that: it is comprised of the raw material of following weight part:
UV polyester 35-45 part
Virahol 25-35 part
Toluene 24-28 part.
5. a kind of PVC elasticity minute surface scratch resistance agent according to claim 1, it is characterized in that: it is comprised of the raw material of following weight part:
UV polyester 35-40 part
Butanone 10-20 part
Virahol 10-20 part
Toluene 24-26 part.
6. a kind of PVC elasticity minute surface scratch resistance agent according to claim 1, it is characterized in that: it is comprised of the raw material of following weight part:
UV urethane 40-45 part
Butanone 10-20 part
Virahol 10-20 part
Toluene 25-30 part.
7. application rights requires the described a kind of PVC elasticity minute surface scratch resistance agent of 1 ~ 6 any one to prepare the technique of the anti-scratch PVC film of elasticity minute surface, and it is characterized in that: it comprises following processing step:
A, get basement membrane, described basement membrane is the PVC film;
B, by UV urethane or UV polyester, quick-dry type organic solvent, slow curing type organic solvent mixing and stirring by weight, be modulated into scratch resistance agent;
C, the scratch resistance agent that modulates in step b is dropped in the coating chute of coating machine;
D, in coating chute, select and be carved with the net roller that is woven into reticulate pattern by netting twine, the coating direction that makes the net roller is coated with described PVC film with respect to the feedstock direction of PVC film, forms anti-scratch coating;
E, the PVC film that will be coated with anti-scratch coating are transported on drying unit and carry out drying and processing, after anti-scratch coated and dried, are the anti-scratch film of PVC elasticity minute surface, make the PVC film work in-process that load has the anti-scratch film of PVC elasticity minute surface;
F, the PVC film work in-process of handling well in step e are carried out to the photocuring irradiation with the ultraviolet ray of UV lamp, make the anti-scratch PVC finished film of elasticity minute surface.
8. the preparation method of a kind of PVC elasticity minute surface scratch resistance agent according to claim 7, it is characterized in that: in described step f, the ultraviolet intensity of UV lamp is 280-350mj/cm
2, the UV lamp ultraviolet irradiation time is 1-3s.
9. the preparation method of a kind of PVC elasticity minute surface scratch resistance agent according to claim 7, it is characterized in that: in described step b, the viscosity of scratch resistance agent is 30～50cps; In described steps d, the thickness of anti-scratch coating is 2～6 μ m.
10. the preparation method of a kind of PVC elasticity minute surface scratch resistance agent according to claim 7, it is characterized in that: described step e is specially: the PVC film that will be coated with anti-scratch coating is transported on drying unit and carries out drying and processing, drying unit comprises the drying tunnel that three joints are communicated with successively, the temperature of three joint drying tunnels is followed successively by 60～80 ℃, 90～110 ℃, 110～130 ℃, and the time of drying and processing is 8-20s.
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| CN112916358A (en) * | 2021-01-18 | 2021-06-08 | 广东天进新材料有限公司 | Low-odor UV (ultraviolet) highlight plastic-absorbing film and preparation method thereof |
| CN113337201A (en) * | 2021-06-30 | 2021-09-03 | 湖南松井新材料股份有限公司 | Primer and preparation method and application thereof |
| CN115418153A (en) * | 2022-08-15 | 2022-12-02 | 福州展辰新材料有限公司 | UV LED curing coating and preparation method thereof |
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Effective date of registration: 20151118 Address after: 523000, Guangdong, Dongguan Province, Dongguan Town, Hunan Province, Deng Ting photoelectric film technology Co., Ltd. Patentee after: Dongguan Guoding Optical Membrane Technology Co., Ltd. Address before: Four, building 01, building 523000, new building, science and technology Avenue, new base community, Nancheng District, Guangdong, Dongguan Patentee before: Dongguan Steel Wire Optoelectronic Technology Co., Ltd. |