Showering can ultraviolet cured paint composition with high-leveling
Technical field
The present invention relates to the ultraviolet-curing paint field, relating in particular to a kind of showering can ultraviolet cured paint composition with high-leveling.
Background technology
Efficient, energy-conservation, the advantages such as suitability wide, ambient cure that ultraviolet-curing paint (UV coating) has have been widely applied to the fields such as electronics, communication, chemical industry, machinery, furniture, printing ink.For the difference of use base material, can simply UV coating be divided into: plastic basis material UV coating, metallic substance UV coating, timber UV coating, inorganic materials UV coating, paper UV coating etc.Common UV coating application technique comprises: showering, roller coat, spraying, dip-coating etc., and use by leaching coating process greatly for the UV coating of electronics, communications industry, require to have good flow leveling.
Generally speaking, UV coating is comprised of resin, monomer, light trigger, solvent, auxiliary agent etc., and wherein the viscosity of resin is larger.For leaching coating process, along with the volatilization of solvent, dope viscosity is increasing, and the flow leveling of coating is variation slowly, and this just requires coating itself to have lower viscosity in order to have preferably levelling property.
Summary of the invention
The object of the invention is to overcome the deficiency that above-mentioned prior art exists, a kind of showering high-leveling energy ultraviolet cured paint composition is provided.The present invention is by selecting suitable low viscous resin and control the viscosity that its add-on has effectively been controlled system, thereby prepares the coating composition that also has good low viscosity high-leveling when keeping conventional mechanical property.
The objective of the invention is to be achieved through the following technical solutions:
The present invention relates to a kind of showering high-leveling energy ultraviolet cured paint composition, comprise each component of following parts by weight:
4~30 parts of low viscosity acrylate resins,
70~96 parts of monomers,
3~8 parts of light triggers,
140~350 parts of solvents,
0.01~1 part of flow agent.
Preferably, each component that comprises following parts by weight:
4~20 parts of low viscosity acrylate resins,
80~96 parts of monomers,
4~6 parts of light triggers,
100~250 parts of solvents,
0.05~0.5 part of flow agent.
Viscosity was lower than the polyurethane acrylate resin of 20000cps, one or more in the polyester acrylate resin when preferably, described low viscosity acrylate resin was 25 ℃.This viscosity preferable range is 300~20000cps.
Viscosity was lower than the polyurethane acrylate resin of 7000cps, one or more in the polyester acrylate resin when preferably, described low viscosity acrylate resin was 25 ℃.This viscosity preferable range is 300~7000cps.
Preferably, described monomer is one or more in 1,6 hexanediol diacrylate, tripropylene glycol diacrylate, polyethyleneglycol diacrylate, Viscoat 295, trimethylolpropane trimethacrylate, ethoxyquin Viscoat 295, the third oxidation Viscoat 295, pentaerythritol triacrylate, tetramethylol methane tetraacrylate, ethoxyquin tetramethylol methane tetraacrylate, the third oxidation tetramethylol methane tetraacrylate, the dipentaerythritol acrylate.
Preferably, described light trigger is benzophenone, 1-hydroxyl-cyclohexyl-phenyl ketone, 2-hydroxy-2-methyl-1-phenyl-1-acetone, 2,4, one or more in 6-trimethylbenzoyl-diphenyl phosphine oxide, the isopropyl thioxanthone.
Preferably, described solvent is one or more in vinyl acetic monomer, N-BUTYL ACETATE, Virahol, propyl carbinol, ethanol, propylene glycol monomethyl ether, ethylene glycol ethyl ether, the 1-Methoxy-2-propyl acetate.
Preferably, described flow agent is one or more in organic silicon modified by polyether, polyester resin change properties of organic silicon, polydimethylsiloxane, fluorin modified crylic acid ester, the acrylate copolymer.
Compared with prior art, the present invention has following beneficial effect:
(1) selected resin viscosity is low, is convenient to coating and mixes;
(2) by viscosity and the add-on of control resin, can effectively reduce viscosity, improve the flow leveling of coating;
(3) resin that makes of the present invention also has good mechanical property when having the low viscosity high-leveling.
Embodiment
The present invention is described in detail below in conjunction with specific embodiment.Following examples will help those skilled in the art further to understand the present invention, but not limit in any form the present invention.Should be pointed out that to those skilled in the art, without departing from the inventive concept of the premise, can also make some distortion and improvement.These all belong to protection scope of the present invention.
Embodiment 1
The present embodiment relates to a kind of showering with high-leveling energy ultraviolet cured paint composition, comprises the component shown in the table 1 and parts by weight; Wherein, the polyester acrylate resin viscosity is 300cps under 25 degrees centigrade, and polyurethane acrylate resin viscosity is 70000cps under 25 degrees centigrade.
This coating is long for the front flow time on the base material of 92cm is 25 seconds at plate, and hardness is that 500g power HB is seamless.
Embodiment 2
The present embodiment relates to a kind of showering with high-leveling energy ultraviolet cured paint composition, comprises the component shown in the table 1 and parts by weight; Wherein, the polyester acrylate resin viscosity is 300cps under 25 degrees centigrade, and polyurethane acrylate resin viscosity is 20000cps under 25 degrees centigrade.
This coating is long for the front flow time on the base material of 92cm is 18 seconds at plate, and hardness is that 500g power HB is seamless.As known from compared to Example 1, reduce the viscosity of resin, levelling has been played useful effect, and can keep preferably hardness.
Embodiment 3
The present embodiment relates to a kind of showering with high-leveling energy ultraviolet cured paint composition, comprises the component shown in the table 1 and parts by weight; Wherein, the polyester acrylate resin viscosity is 300cps under 25 degrees centigrade, and polyurethane acrylate resin viscosity is 7000cps under 25 degrees centigrade.
This coating is long for the front flow time on the base material of 92cm is 14 seconds at plate, and hardness is that 500g power HB is seamless.
Embodiment 4
The present embodiment relates to a kind of showering with high-leveling energy ultraviolet cured paint composition, comprises the component shown in the table 1 and parts by weight; Wherein, the polyester acrylate resin viscosity is 300cps under 25 degrees centigrade.
This coating is long for the front flow time on the base material of 92cm is 5 seconds at plate, and hardness is that 500g power HB is seamless.
Embodiment 5
The present embodiment relates to a kind of showering with high-leveling energy ultraviolet cured paint composition, comprises the component shown in the table 1 and parts by weight; Wherein, the polyester acrylate resin viscosity is 1000cps under 25 degrees centigrade.
This coating is long for the front flow time on the base material of 92cm is 10 seconds at plate, and hardness is that 500g power HB is seamless.
Embodiment 6
The present embodiment relates to a kind of showering with high-leveling energy ultraviolet cured paint composition, comprises the component shown in the table 1 and parts by weight; Wherein, polyurethane acrylate resin viscosity is 6000cps under 25 degrees centigrade.This coating is long for the front flow time on the base material of 92cm is 15 seconds at plate, and hardness is that 500g power HB is seamless.
Each component and parts by weight thereof among table 1 embodiment 1~6
Above specific embodiments of the invention are described.It will be appreciated that, the present invention is not limited to above-mentioned specific implementations, and those skilled in the art can make various distortion or modification within the scope of the claims, and this does not affect flesh and blood of the present invention.