Background technology:
Ultraviolet light polymerization UV coating is with its good wear resistance, and performances such as strong erosion resistance and high rigidity have been widely used in the decorative plate protection of all kinds of electronic product casings, and energy-conservation, pollution-free.But for a long time, the technology of this product and produce market are external company and monopolize, and its price can be in any more always, has saved the development of electronic product industry to a certain extent.
Chinese patent application number: 02153925, denomination of invention: a kind of luster coating and preparation method thereof, luster coating is a raw material with oleic series, pearlescence, glitter powder and the solvent-borne type material of certainweight degree, after in lime agitator, mixing, stir at normal temperatures and make, but this invention effect is limited, only uses with external wall and uses
Chinese patent application number: 200410015203.4, a kind of ultraviolet-curing paint of patent name, its component comprises low functionality monomer, low functionality prepolymer, auxiliary agent, light trigger and mixed solvent, in component, also include the monomer of high functionality and the prepolymer of high functionality, the weight percent of this component is: low functionality monomer 1~10, high functionality monomer 5~15, low functionality prepolymer 15~35, high functionality prepolymer 30~50, auxiliary agent 0~3, light trigger 2~5, mixed solvent 15~30, but this invention cost is higher, fails to promote the use of on a large scale.
Summary of the invention:
The objective of the invention is to overcome the deficiencies in the prior art, provide a kind of and can reach national 3C electronic product standard, colory ultraviolet light polymerization UV coating.
For achieving the above object, the present invention is by the following technical solutions:
A kind of ultraviolet light polymerization UV coating, form by following raw materials by weight percent:
Aliphatic urethane acrylate: 30%~45%
Aromatic urethane acrylic acid ester: 2%~5%
Reactive thinner: 10%~20%
Light trigger: 4%~5%
Mixed solvent: 30~45%
Auxiliary agent: 0.5~2%
Wherein, described reactive thinner is a tripropylene glycol diacrylate; Described light trigger is 1-hydroxyl-ring base in the sixth of the twelve Earthly Branches phenyl ketone, 2-hydroxyl-2 methyl isophthalic acid phenyl-1 acetone, 2,4,6-trimethylbenzoyl diphenyl phosphine oxide;
Described mixed solvent comprises ketone and pure ethers, and described ketone comprises one or more of acetone, butanone, methyl-positive the eleventh of the twelve Earthly Branches base ketone, methyl-different the eleventh of the twelve Earthly Branches base ketone, and described pure ethers comprises one or both of ethylene glycol monomethyl ether, ethylene glycol ethyl ether;
Described auxiliary agent comprises flow agent, levelling control agent, wetting agent, dispersion agent, defoamer, oil-repellent, prevents after-tacking agent.
Preferably, a kind of ultraviolet light polymerization UV coating, form by following raw materials by weight percent:
Aliphatic urethane acrylate: 35%~40%
Aromatic urethane acrylic acid ester: 2%~3%
Reactive thinner: 10%~15%
Light trigger: 4%~5%
Mixed solvent: 40~45%
More excellent, a kind of ultraviolet light polymerization UV coating, form by following raw materials by weight percent:
Aliphatic urethane acrylate: 37%
Aromatic urethane acrylic acid ester 3%
Reactive thinner: 15%
Light trigger: 4%
Mixed solvent: 40%
Auxiliary agent: 1%.
According to above-mentioned prescription, the raw material of each component is put in the reactor, high-speed stirring 20 minutes filters and packages and gets final product.
Technical solution of the present invention is brought tangible beneficial effect, has good super wear resistance, and performances such as anti-scratch, weather-proof, anti-chemical and high rigidity and transparent stereo sense are a kind of energy-efficient pollution-free reaching the healthy harmless environmentfriendly products of the person.
Embodiment:
The following examples can make those skilled in the art more fully understand the present invention, but do not limit the present invention in any way.
At first, the used starting material of the present invention are as follows.
1, aliphatic urethane acrylate: inhibited from yellowing, fast light, weathering resistance is good, and viscosity is lower simultaneously, and shock-resistance is preferably arranged.Supplier and product type are as follows:
2, aromatic urethane acrylic acid ester: in the aromatic urethane acrylic acid ester molecule ammonia ester bond is arranged, can be at polymer key intermediate formation and hydrogen bond, have excellent abrasive and snappiness with such oligopolymer, has good anti-anti-property simultaneously, medicine and high-and low-temperature resistance performance, shock-resistance has sticking power preferably to base material preferably.The aromatic urethane acrylic acid ester that the present invention uses has higher physical strength and hardness and thermotolerance, and price is low to be the first-selection of UV coating.Supplier and product type are as follows:
3, tripropylene glycol diacrylate: have extremely low acid content and residual solvent levels, so solidified does not have almost solvent to overflow.Supplier and product type are as follows:
4, light trigger:
Light trigger is divided into crack type photoinitiator and hydrogen-capture-type light initiator two classes, light trigger also will use with other auxiliary components such as photosensitizers and sensitizing agent sometimes, this molecule/sensitiser absorption luminous energy that works exactly in wide solidification process is adjourned to excited state, be transferred to light trigger by energy, light trigger absorbs behind the energy by ground state transition to excited state, chemical transformation takes place, and produces active intermediate, thus initiated polymerization.Present modal light trigger has good solubility on the market in reactive thinner and oligopolymer.Supplier and product type are as follows:
5, mixed solvent comprises ketone and pure ethers, and wherein ketone comprises acetone, butanone, methyl-positive the eleventh of the twelve Earthly Branches base ketone, methyl-different the eleventh of the twelve Earthly Branches base ketone, and pure ethers comprises ethylene glycol monomethyl ether, ethylene glycol ethyl ether.
6, auxiliary agent: comprise flow agent, levelling control agent, wetting agent, dispersion agent, defoamer, oil-repellent, anti-ly after-tack agent;
The flow agent kind is more, and common have solvent based, property fiber-like, polyacrylate(s), silicone resin class and a fluorine surfactant etc.The used flow agent of the present invention mainly contains polyacrylate flow agent, agent of silicone resin advection and fluorine surfactant flow agent three major types.
The supplier and the product type of used auxiliary agent are as follows:
Embodiment 1
A kind of ultraviolet light polymerization UV coating, form by following raw materials by weight percent:
Aliphatic urethane acrylate (covering this tower sky 306) 37%
Tripropylene glycol diacrylate (ratio of greater inequality west EB1110) 15%
Fragrance urethane acrylic acid ester (ratio of greater inequality west EB205) 3%
Light trigger (Ciba 184) 4%
Acetone 20%
Ethylene glycol monomethyl ether 20%
Flow agent (Bayer BYK-3500) 0.5%
Defoamer (moral modest 2700) 0.3%
Levelling control agent (moral modest 435) 0.2%
According to above-mentioned prescription, the raw material of each component is put in the reactor, high-speed stirring 20 minutes filters and packages and gets final product.
Embodiment 2
A kind of ultraviolet light polymerization UV coating, form by following raw materials by weight percent:
Aliphatic urethane acrylate (covering this tower sky 306) 35%
Tripropylene glycol diacrylate (ratio of greater inequality west EB1110) 15%
Fragrance urethane acrylic acid ester (ratio of greater inequality west EB205) 2%
Light trigger (Ciba 184) 5%
Acetone 20%
Ethylene glycol monomethyl ether 21.5%
Flow agent (Bayer BYK-3500) 0.5%
Defoamer (moral modest 2700) 0.5%
Levelling control agent (moral modest 435) 0.5%
According to above-mentioned prescription, the raw material of each component is put in the reactor, high-speed stirring 20 minutes filters and packages and gets final product.
Above content is preferred embodiment of the present invention only, and for those of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, this description should not be construed as limitation of the present invention.