A kind of antibacterial ultraviolet is coating material solidifiedTechnical field
The present invention relates to a kind of UV-light to visible light solidifying material, it is coating material solidified to relate in particular to a kind of antibacterial ultraviolet.
Background technology
Photo-cured coating claims photoactive coating again, is the ultraviolet-curing paint that is called of the paint solidification energy with the UV-light.UV-light (UV) is coating material solidified need not to be heated, can be on inflammable grounds such as paper, plastics, leather and timber film-forming rapidly.Ultraviolet-curing paint mainly is made up of photosensitive resin, photosensitizers (light trigger) and thinner, adds some additives simultaneously, as thermo-stabilizer, adds pigment and filler during the preparation colored paint.
Photosensitive resin generally is the low-molecular-weight resin that has unsaturated link(age), as unsaturated polyester, acrylic oligomers; Photosensitizers is easily to absorb the compound that UV-light produces living radical, as benzophenone, st-yrax alkyl ether; The main effect of thinner is to reduce dope viscosity, also participates in film-forming simultaneously, is reactive thinner, as vinylbenzene, acrylate etc.
The photo-cured coating advantage is set time short (part second to several minutes), solidification value is low, volatile matter is low, is to economize the energy, resource-saving, nuisanceless, high efficiency coating new variety; Its shortcoming is that free radical type photo-cured coating solidification process is prevented by oxygen, and surface cure is bad.
Traditional paint solidification is that the method for physical dryness is removed the solvent in the macromolecular solution by heating normally, obtains the hardened paint film.It then is to utilize the energy of UV-light to cause low molecule performed polymer in the coating or oligomer and as polymerization between the monomer molecule of reactive thinner and crosslinking reaction, obtain the paint film that hardens that UV solidifies, and comes down to realize chemical seasoning by forming chemical bond.
UV coating is widely used in the various electronic products at present, especially on toy, mobile phone, computor-keyboard, therefore this electronic product requires it to possess certain antibacterial effect owing to contact frequently with human body, and therefore providing a kind of antibacterial ultraviolet coating material solidified is the technology that industry is thirsted for always.
Summary of the invention
It is coating material solidified to the invention provides a kind of antibacterial ultraviolet, adopts silver suboxide to combine with the aromatic urethane acrylate, can play good antibacterial effect.
The present invention is achieved by the following technical solutions: a kind of antibacterial ultraviolet is coating material solidified, and the component and the mass percent of described photo-cured coating are as follows
Aromatic urethane acrylate 40~60%
Crosslinked thinner 25~45%
Light trigger 2~12%
Nanometer grade silica 5~15%
Silver suboxide 0.5~1%.
Further preferably, also comprise in the described photo-cured coating:
Solvent 5~20%.
Further preferably, also comprise in the described photo-cured coating:
Flow agent 0.2~1%.
More preferably, described crosslinked thinner is selected from pentaerythritol triacrylate, tetramethylol methane tetraacrylate, tetramethylolmethane six acrylate, the neopentylglycol diacrylate one or more.
More preferably, described light trigger is selected from 2-hydroxy-2-methyl-1-phenyl-1-propyl group ketone, 2,4, in 6-trimethylbenzoyl diphenyl phosphine oxide, 1-hydroxyl-ring ethyl-phenyl ketone, benzoin dimethylether, the benzophenone one or more.
Described nanometer grade silica is meant grafted nanometer grade silica on double pentaerythritol methacrylate.
More preferably, described flow agent is selected from organic silicon modified by polyether, polyester modification organosilicon, polyacrylic ester, propylene soda acid and holds resin, polydimethylsiloxane, PSI, in the organic radical modified polyorganosiloxane one or more.
More preferably, described solvent is selected from vinyl acetic monomer, N-BUTYL ACETATE, toluene, dimethylbenzene, acetone, the butanone one or more.
Because nanometer grade silica is reunited in system easily, disperse inhomogeneously, can influence the transparency and the wear resistance of system, the grafted nanometer grade silica can well solve the transparency and the wear resistance of system on double pentaerythritol methacrylate.Adopt silver suboxide to combine, can play good antibacterial effect with the aromatic urethane acrylate.
Embodiment
Below by embodiment the present invention is further elaborated.
The light curing agent that the various embodiments described above are made is applied on the mobile phone products, test in the laboratory then, measure this patent light curing agent Chinese People's Anti-Japanese Military and Political College enterobacteria rate and reach 99.5%, the staphylococcus rate reaches 99.8%, and this patent product has very strong antibacterial effect as can be seen.Those skilled in the art will recognize that; above-mentioned embodiment is exemplary; be in order to make those skilled in the art can better understand this patent content; should not be construed as is restriction to this patent protection domain; change or modify so long as disclose spiritual any being equal to of being done, all fall into this patent protection domain according to this patent.