CN103064139A - Anti-scratching optical reflecting film and manufacturing method of the same - Google Patents
Anti-scratching optical reflecting film and manufacturing method of the same Download PDFInfo
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- CN103064139A CN103064139A CN201310002940XA CN201310002940A CN103064139A CN 103064139 A CN103064139 A CN 103064139A CN 201310002940X A CN201310002940X A CN 201310002940XA CN 201310002940 A CN201310002940 A CN 201310002940A CN 103064139 A CN103064139 A CN 103064139A
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Abstract
The invention relates to the technical field of optical thin films, in particular to an anti-scratching optical reflecting film and a manufacturing method of the same. The anti-scratching optical reflecting film and the manufacturing method of the same solve the problems that an existing reflecting film enables a light guide plate to be scratched easily or the reflecting film is creased or scratched easily. The reflecting film comprises a base material, wherein particles are arranged on the base material and are bonded on the base material through an adhesive layer, the particles comprise flexible particles and non-flexible particles, the flexible particles make up 40-100% of total weight of the particles, and the non-flexible particles make up 0-60% of the total weight of the particles. According to the anti-scratching optical reflecting film, scratching of the light guide plate is reduced obviously, and one side, in contact with the light guide plate, of the reflecting film is not creased or scratched easily. Furthermore, the anti-scratching optical reflecting film is simple in manufacturing method and technology, and easy to operate.
Description
Technical field
The present invention relates to optical film technology field, be specifically related to a kind of anti scuffing optical reflectance coating and preparation method thereof.
Background technology
Backlight module is as one of significant components of liquid crystal display, and it comprises diffusion barrier, a series of assemblies such as prismatic lens, light guide plate, reflectance coating and fluorescent tube.Because liquid crystal itself can't be luminous, backlight module has just played the effect of well-off brightness and the planar light source that is evenly distributed.Reflectance coating has played an effect that the light of scattering is reflected back again light guide plate here, and the reflection efficiency of reflectance coating directly affects utilization ratio and the brightness of light source.
In backlight module, what light guide plate was placed below is exactly reflectance coating, the material of light guide plate generally is PMMA or PC sheet material, the scratch resistance trace of PMMA more is better than PC, but in price, the PMMA material is more expensive than PC material, so PC sheet material is having more competitiveness in price, simultaneously light guide plate also thins down, and this will ask reflectance coating to reduce scratch to light guide plate in assembling and transportation as far as possible.
In the prior art, reflectance coating roughly has two kinds, and a kind of is metallic reflective coating, and a kind of is the white plastic reflectance coating.And the white plastic reflectance coating is used more extensive owing to the advantage on price, weight, the pliability.Present white plastic reflectance coating on the market is to add titania in PET, in unidirectional or biaxial orientation process, forms cavity, and light reflects in cavity, thereby improves reflectivity.But the material of this white plastic reflectance coating is soft, in use easily produces folding line, scratch.
Therefore, we need a kind of reflectance coating, and its scratch to light guide plate is reduced, and also reduce the scratch of reflectance coating self simultaneously.
Summary of the invention
Easily produce the defective of folding line or scratch in order to solve the existing easy scratch light guide plate of reflectance coating or reflectance coating self, the invention provides a kind of anti scuffing optical reflectance coating and preparation method thereof.Reflectance coating provided by the invention obviously reduces the scratch of light guide plate, and the one side that the while reflectance coating contacts with light guide plate also is difficult for producing folding line or scratch, and its preparation method technique is simple, easy operating.
In order to solve the problems of the technologies described above, the present invention adopts following technical proposals:
The invention provides a kind of anti scuffing optical reflectance coating, described reflectance coating comprises base material, is provided with particle on the described base material, and described particle is bonded on the described base material by adhesive layer; Described particle comprises flexible particle and inflexibility particle, and wherein, flexible particle accounts for the 40-100% of particle gross weight, and the inflexibility particle accounts for the 0-60% of particle gross weight.
The dried thickness of described adhesive layer is 1-25 μ m, and the thickness of described substrate layer is 50-250 μ m.Described particle and adhesive layer form protective finish.
Described particle is bonded in the surface of described base material by adhesive.Described flexible particle refers to that particle when being subject to the external force extruding, deformation can occur; Described inflexibility particle refers to particle when being subject to the external force extruding, and the deformation that deformation or generation can not occur is less.
Further, the particle diameter of described flexible particle is 1-30 μ m, and the particle diameter of described inflexibility particle is 0.1-10 μ m; The dried thickness of described adhesive layer is the 1/10-8/10 of flexible particle diameter.
Preferably, the particle diameter of described flexible particle is 1-5 μ m, 5-10 μ m, and 10-20 μ m, 20-30 μ m or 5-20 μ m, the particle diameter of described inflexibility particle are 0.1-1 μ m, 0.5-3 μ m, 1-5 μ m, 3-5 μ m or 5-10 μ m.
Further, the particle diameter ratio of described flexible particle and inflexibility particle is 2-10:1.Preferably, the particle diameter ratio of described flexible particle and inflexibility particle is 2-6:1,5:1,4:1 or 3:1.
Further, described flexible particle is the nylon particle, and described inflexibility particle comprises the combination of a kind of in polymethylmethacrylate particle, poly-n-butyl methacrylate particle, polystyrene particle, silicone resin particle, TiO 2 particles, calcium carbonate particle, barium sulphate particle, the silicon dioxide granule or at least two kinds.The preferred nylon-6 of described nylon particle or nylon-66.
Further, described substrate material is polyethylene terephthalate (being called for short white PET), is added with titania and barium sulphate in the described base material.
Described adhesive is the combination of a kind of in adhesive for polyurethane, acrylate adhesive, the epoxy resin adhesive or at least two kinds.
The present invention also provides a kind of preparation method of above-mentioned anti scuffing optical reflectance coating, and described preparation method comprises the steps:
(1) preparation coating fluid: add successively adhesive, particle, ultraviolet absorber, solvent, stirred 1-3 hour;
(2) coating fluid with step (1) gained is uniformly coated on the base material, under 80-120 ℃, toasts 1-30 minute.
Solvent described in the above-mentioned steps (1) comprises a kind of or wherein at least two kinds the combination in toluene, ethyl acetate, dimethylbenzene, the butyl acetate.
Further, coating fluid comprises the adhesive of 100 weight portions, the particle of 1-35 weight portion in the described step (1).
Further, coating fluid comprises the adhesive of 100 weight portions, the particle of 1-20 weight portion in the described step (1).
Further, coating fluid comprises the adhesive of 100 weight portions in the described step (1), the particle of 3-10 weight portion, and described flexible particle accounts for the 50-100% of particle gross weight, and described inflexibility particle accounts for the 0-50% of particle gross weight.
Further, coating fluid comprises the adhesive of 100 weight portions in the described step (1), 3-4 weight portion particle, and described flexible particle accounts for the 65-80% of particle gross weight, and described inflexibility particle accounts for the 20-35% of particle gross weight.
Further, coating fluid comprises the adhesive of 100 weight portions in the described step (1), and 5 weight portion particles, described particle are flexible particle.Perhaps the middle coating fluid of described step (1) comprises the adhesive of 100 weight portions, and the particle of 10 weight portions, described particle comprise the flexible particle of 50-70%, the inflexibility particle of 30-50%.
Further, described step (1) middle-ultraviolet lamp absorbing agent (abbreviation ultraviolet absorber) accounts for the 0.01-0.05% of coating fluid general assembly (TW).
The present invention also provides a kind of anti scuffing optical reflectance coating, and described reflectance coating comprises base material, is provided with particle on the described base material, and described particle is bonded on the described base material by adhesive layer; The dried thickness of described adhesive layer is 1-25 μ m, and the thickness of described substrate layer is 50-250 μ m.Further, described particle is the nylon particle.The anti scuffing performance of this reflectance coating is better.
Further, the particle diameter of described nylon particle is 1-30 μ m.
Further, the dried thickness of described adhesive layer is 8-15 μ m, and the thickness of described substrate layer is 75-200 μ m.
Further, the dried thickness of described adhesive layer is 10-20 μ m, and the thickness of described substrate layer is 100-188 μ m.
Compared with prior art, anti scuffing optical reflectance coating provided by the invention adopts the flexible nylon particle, and when light guide plate extruding reflectance coating, certain deformation can occur the flexible particle on the reflectance coating, makes pressure that the space of buffering arranged, thereby reduces the scratch of light guide plate; Simultaneously, the protective finish on the reflectance coating, hardness is larger, and obvious scratch resistance is arranged, and reduces the scratch in assembling, transportation, use; In addition, at base material particle is set and can makes the surface more coarse, the scattering that this helps light makes brightness more even; Described substrate surface also is added with ultraviolet absorber, can absorb the ultraviolet light that fluorescent tube sends, and slows down the reflectance coating xanthochromia, the phenomenon of embrittlement.
Description of drawings
Fig. 1 is the structural representation of anti scuffing optical reflectance coating provided by the invention and light guide plate;
Fig. 2 is the schematic diagram before and after the flexible particle pressurized.
Wherein, 101 is base material, and 102 is adhesive layer, and 201 is flexible particle, and 202 is the inflexibility particle, and 104 is light guide plate.
Embodiment
As shown in Figure 1, anti scuffing optical reflectance coating provided by the invention comprises base material 101, is provided with particle on the described base material 101, and described particle is bonded on the described base material 101 by adhesive layer 102; Be light guide plate 104 on the adhesive layer 102, described particle comprises flexible particle 201 and inflexibility particle 202, and the particle diameter of flexible particle 201 is greater than inflexibility particle 202.
As shown in Figure 2, deformation can occur in flexible particle 201 when being subject to the external force extruding, and the particle diameter of flexible particle is hindered light guide plate greater than the inflexibility particle to avoid inflexibility particle top.
The used material and facility of the present invention is current material and equipment.
The preparation method of anti scuffing optical reflectance coating provided by the invention comprises the steps:
(1) preparation coating fluid: add successively adhesive, particle, ultraviolet absorber, solvent, stirred 1-3 hour;
(2) coating fluid with step (1) gained is uniformly coated on the base material, under 80-120 ℃, toasts 1-30 minute.
Prepare according to the method described above the anti scuffing optical reflectance coating, the method for testing of gained reflectance coating properties is summarized as follows:
Scratch degree: reflectance coating is packed in the backlight module, then put into the vibrations experiment that the vibratory test case carried out 2 hours, after vibrations experiments is finished, light guide plate and reflectance coating are taken out the scratch situation of the one side that contacts with light guide plate on observation light guide plate and the reflectance coating.
Vibrations experiment: vibration frequency 5-100HZ, 31 seconds times spent, 100-5HZ, 31 seconds times spent (that is: with 31 second time, vibration frequency rose to 100HZ by 5HZ, used 31 second time again, dropped to 5HZ by 100HZ).Level, vertical direction respectively shake 1 hour.
Transmittance and mist degree: measure according to being the GB/T2410-2008 standard, testing tool is NDH5000Haze Meter nephelometer/turbidimeter.
Embodiment 1
Prepare according to the method described above the anti scuffing optical reflectance coating, base materials employed is white PET, and thickness is 150 μ m, and white PET is provided with protective finish, and the used adhesive of coating is adhesive for polyurethane, and adhesive is 100 weight portions, and particle is 35 weight portions.Described particle comprises the silicon dioxide granule that accounts for particle gross weight 20%, and its particle diameter is 5 μ m; Account for the nylon particle of particle gross weight 80%, its particle diameter is 10 μ m.The dried thickness of adhesive layer is 8 μ m.
Embodiment 2
Prepare according to the method described above the anti scuffing optical reflectance coating, base materials employed is white PET, and thickness is 188 μ m, and white PET is provided with protective finish, and the used adhesive of coating is acrylate adhesive, and adhesive is 100 weight portions, and particle is 25 weight portions.Particle comprises the barium sulphate particle that accounts for particle gross weight 10%, and its particle size range is 3 μ m; Account for the TiO 2 particles of particle gross weight 10%, its particle size range is 1 μ m; Account for the nylon particle of particle gross weight 80%, its particle size range is 10 μ m.The dried thickness of adhesive layer is 6-8 μ m.
Embodiment 3
Prepare according to the method described above the anti scuffing optical reflectance coating, base materials employed is white PET, and thickness is 100 μ m, and white PET is provided with protective finish, and the used adhesive of coating is acrylate adhesive, and adhesive is 100 weight portions, and particle is 35 weight portions.Particle comprises the TiO 2 particles that accounts for particle gross weight 5%, and its particle size range is 5 μ m; Account for the PMMA(polymethylmethacrylate of particle gross weight 30%) particle, its particle size range is 10 μ m; Account for the nylon particle of particle gross weight 65%, its particle size range is 20 μ m.The dried thickness of adhesive layer is 10-16 μ m.
Embodiment 4
Prepare according to the method described above the anti scuffing optical reflectance coating, base materials employed is white PET, thickness is 50 μ m, coating fluid comprises the adhesive for polyurethane of 100 weight portions in the described step (1), the nylon particle of 1 weight portion, its particle diameter is 1-30 μ m, and the dried thickness of adhesive layer is 2-3 μ m, is 1/10 of flexible particle diameter basically.
Embodiment 5
Prepare according to the method described above the anti scuffing optical reflectance coating, base materials employed is white PET, thickness is 250 μ m, coating fluid comprises the adhesive for polyurethane of 100 weight portions in the described step (1), the particle of 20 weight portions, wherein, flexible particle is the nylon particle, particle diameter is 5-30 μ m, accounts for 40% of particle gross weight, and the inflexibility particle is the poly-n-butyl methacrylate particle, particle diameter is 0.5-3 μ m, account for 60% of particle gross weight, described nylon particle is 10:1 with the mean grain size ratio of poly-n-butyl methacrylate particle, and the dried thickness of adhesive layer is 25 μ m.
Embodiment 6
Prepare according to the method described above the anti scuffing optical reflectance coating, base materials employed is white PET, thickness is 150 μ m, coating fluid comprises the epoxy resin adhesive of 100 weight portions in the described step (1), the particle of 20 weight portions, wherein, flexible particle is the nylon-6 particle, particle diameter is 1-10 μ m, accounts for 60% of particle gross weight, and the inflexibility particle is polystyrene particle, particle diameter is 0.1-1 μ m, account for 40% of particle gross weight, the particle diameter ratio of described nylon particle and polystyrene particle is 2-10:1, and the dried thickness of adhesive layer is 8 μ m.
Scratch degree and the optical performance test data of table 1 embodiment 1-6 gained reflectance coating
Embodiment 7
Prepare according to the method described above the anti scuffing optical reflectance coating, base materials employed is white PET, be added with titania and barium sulphate in the base material, the thickness of base material is 100 μ m, coating fluid comprises the adhesive for polyurethane of 100 weight portions in the described step (1), the particle of 8 weight portions, wherein, the particle diameter of flexible particle is 1-30 μ m, accounts for 80% of particle gross weight, the inflexibility particle is the silicone resin particle, particle diameter is 0.1-5 μ m, accounts for 20% of particle gross weight, and described flexible particle is 8:1 with the mean grain size ratio of silicone resin particle, the dried thickness of adhesive layer is 15 μ m, is 6/10 of flexible particle diameter.
Embodiment 8
Prepare according to the method described above the anti scuffing optical reflectance coating, base materials employed is white PET, thickness is 75 μ m, coating fluid comprises the epoxy resin adhesive of 100 weight portions in the described step (1), the particle of 15 weight portions, wherein, flexible particle is nylon-66, and particle diameter is 10-20 μ m, accounts for 50% of particle gross weight, the inflexibility particle is TiO 2 particles and calcium carbonate particle (mass ratio is 1:1), particle diameter is 3-5 μ m, accounts for 50% of particle gross weight, and described nylon particle is 4:1 with the mean grain size ratio of inflexibility particle, the dried thickness of adhesive layer is 7-10 μ m, is 5/10 of flexible particle diameter.
Embodiment 9
Prepare according to the method described above the anti scuffing optical reflectance coating, base materials employed is white PET, thickness is 75 μ m, coating fluid comprises the adhesive for polyurethane of 100 weight portions in the described step (1), the particle of 20 weight portions, wherein, flexible particle is the nylon-6 particle, and particle diameter is 20-30 μ m, accounts for 90% of particle gross weight, the inflexibility particle is the barium sulphate particle, particle diameter is 5-10 μ m, accounts for 10% of particle gross weight, and the particle diameter ratio of described nylon particle and barium sulphate particle is 2-6:1, the dried thickness of adhesive layer is 8-10 μ m, is 3/10 of flexible particle diameter.
Embodiment 10
Prepare according to the method described above the anti scuffing optical reflectance coating, base materials employed is white PET, be added with titania and barium sulphate in the base material, the thickness of base material is 200 μ m, coating fluid comprises the adhesive for polyurethane of 100 weight portions in the described step (1), the particle of 3 weight portions, wherein, flexible particle is the nylon particle, and particle diameter is 5-30 μ m, accounts for 50% of particle gross weight, the inflexibility particle is silicone resin particle and TiO 2 particles (mass ratio is 1:1), particle diameter is 0.5-3 μ m, accounts for 50% of particle gross weight, and the dried thickness of adhesive layer is 15 μ m.
Embodiment 11
Prepare according to the method described above the anti scuffing optical reflectance coating, base materials employed is white PET, thickness is 120 μ m, coating fluid comprises the adhesive for polyurethane of 100 weight portions in the described step (1), the nylon particle of 8 weight portions, the particle diameter of particle is 1-30 μ m, and the dried thickness of adhesive layer is 12 μ m.
Embodiment 12
Prepare according to the method described above the anti scuffing optical reflectance coating, base materials employed is white PET, and thickness is 150 μ m, coating fluid comprises the acrylate adhesive of 100 weight portions in the described step (1), the particle of 10 weight portions, wherein, flexible particle is the nylon particle, particle diameter is 1-30 μ m, account for 70% of particle gross weight, the inflexibility particle is silicon dioxide granule, and particle diameter is 0.1-10 μ m, account for 30% of particle gross weight, the dried thickness of adhesive layer is 8-10 μ m.
Scratch degree and the optical performance test data of table 2 embodiment 7-12 gained reflectance coating
Embodiment 13
Prepare according to the method described above the anti scuffing optical reflectance coating, base materials employed is white PET, thickness is 100 μ m, coating fluid comprises the acrylate adhesive of 100 weight portions in the described step (1), the particle of 3 weight portions, and ultraviolet absorber, wherein, flexible particle is the nylon particle, particle diameter is 10-20 μ m, account for 70% of particle gross weight, the inflexibility particle is polymethylmethacrylate particle and TiO 2 particles (mass ratio is 1:2), and particle diameter is 1-5 μ m, account for 30% of particle gross weight, described nylon particle is 6:1 with the mean grain size ratio of inflexibility particle, and described ultraviolet absorber accounts for 0.01% of coating fluid general assembly (TW), and the dried thickness of adhesive layer is 10-12 μ m.
Embodiment 14
Prepare according to the method described above the anti scuffing optical reflectance coating, base materials employed is white PET, thickness is 188 μ m, coating fluid comprises the epoxy resin adhesive of 100 weight portions in the described step (1), the particle of 3 weight portions and ultraviolet absorber, wherein, flexible particle is the nylon particle, and particle diameter is 10-20 μ m, accounts for 65% of particle gross weight, the inflexibility particle is TiO 2 particles, particle diameter is 1-5 μ m, accounts for 35% of particle gross weight, and described nylon particle is 6:1 with the mean grain size ratio of TiO 2 particles, described ultraviolet absorber accounts for 0.05% of coating fluid general assembly (TW), and the dried thickness of adhesive layer is 10-16 μ m.
Embodiment 15
Prepare according to the method described above the anti scuffing optical reflectance coating, base materials employed is white PET, thickness is 128 μ m, coating fluid comprises the acrylate adhesive of 100 weight portions in the described step (1), the particle of 4 weight portions and ultraviolet absorber, wherein, flexible particle is the nylon particle, and particle diameter is 10-20 μ m, accounts for 80% of particle gross weight, the inflexibility particle is the polymethylmethacrylate particle, particle diameter is 1-3 μ m, accounts for 20% of particle gross weight, and described nylon particle is about 6:1 with the mean grain size ratio of polymethylmethacrylate particle, described ultraviolet absorber accounts for 0.03% of coating fluid general assembly (TW), and the dried thickness of adhesive layer is 12-15 μ m.
Embodiment 16
Prepare according to the method described above the anti scuffing optical reflectance coating, base materials employed is white PET, be added with titania and barium sulphate in the base material, the thickness of base material is 50 μ m, coating fluid comprises the epoxy resin adhesive of 100 weight portions in the described step (1), the flexible particle of 5 weight portions, and ultraviolet absorber, the particle diameter of particle is 5-20 μ m, described ultraviolet absorber accounts for 0.02% of coating fluid general assembly (TW), the dried thickness of adhesive layer is 1-2 μ m, and the dried thickness of adhesive layer is 1/10 of flexible particle diameter.
Embodiment 17
Prepare according to the method described above the anti scuffing optical reflectance coating, base materials employed is white PET, thickness is 100 μ m, coating fluid comprises the acrylate adhesive of 100 weight portions in the described step (1), the particle of 10 weight portions, and ultraviolet absorber, wherein, flexible particle is the nylon particle, particle diameter is 1-30 μ m, account for 70% of particle gross weight, the inflexibility particle is the polymethylmethacrylate particle, and particle diameter is 0.1-10 μ m, account for 30% of particle gross weight, the particle diameter ratio of described flexible particle and inflexibility particle is 10-3:1, and described ultraviolet absorber accounts for 0.04% of coating fluid general assembly (TW), and the dried average thickness of adhesive layer is 12 μ m.
Embodiment 18
Prepare according to the method described above the anti scuffing optical reflectance coating, base materials employed is white PET, thickness is 188 μ m, coating fluid comprises the adhesive for polyurethane of 100 weight portions in the described step (1), the particle of 10 weight portions, and ultraviolet absorber, wherein, flexible particle is the nylon particle, particle diameter is 1-20 μ m, account for 50% of particle gross weight, the inflexibility particle is the silicone resin particle, and particle diameter is 0.1-5 μ m, account for 50% of particle gross weight, the particle diameter ratio of described flexible particle and inflexibility particle is 2-10:1, and described ultraviolet absorber accounts for 0.03% of coating fluid general assembly (TW), and the dried thickness of adhesive layer is 10-16 μ m.
Scratch degree and the optical performance test data of table 3 embodiment 13-18 gained reflectance coating
Comparative Examples 1
The E6D6 reflectance coating that toray Co., Ltd. produces.
Comparative Examples 2
The UX188 reflectance coating that Japan Teijin Ltd produces.
Comparative Examples 3
This Comparative Examples is base materials employed to be white PET, and base material thickness is 188 μ m, and white PET is provided with protective finish, and the used adhesive of coating is acrylate adhesive, and adhesive is 100 weight portions, and particle is 30 weight portions.Particle comprises the titania that accounts for total number of particles 20%, and its particle size range is 2 μ m; Account for the PMMA(polymethylmethacrylate of total number of particles 80%) particle, its particle size range is 12 μ m, the dried thickness of adhesive layer is 11 μ m.
Do not contain flexible particle in the described protective seam, gained reflectance coating anti scuffing performance is relatively poor.
Comparative Examples 4
Prepare according to the method described above the anti scuffing optical reflectance coating, base materials employed is white PET, and thickness is 100 μ m, and protective finish is not set on the described base material.
Be not provided with protective finish in the described reflectance coating, the optical property of gained reflectance coating is close with reflectance coating provided by the invention, but the anti scuffing performance is relatively poor.
Comparative Examples 5
Prepare according to the method described above the anti scuffing optical reflectance coating, base materials employed is white PET, thickness is 250 μ m, coating fluid comprises the adhesive for polyurethane of 100 weight portions in the described step (1), the particle of 1 weight portion, wherein, flexible particle is the nylon particle, particle diameter is 5-30 μ m, account for 30% of particle gross weight, the particle diameter of poly-n-butyl methacrylate particle is 0.5-2 μ m, accounts for 70% of particle gross weight, described nylon particle is 10:1 with the mean grain size ratio of poly-n-butyl methacrylate particle, and the dried thickness of adhesive layer is 25 μ m.
The nylon particle content is excessively low in the described protective finish, and reflectance coating anti scuffing performance is relatively poor.
Comparative Examples 6
Prepare according to the method described above the anti scuffing optical reflectance coating, base materials employed is white PET, thickness is 150 μ m, coating fluid comprises the epoxy resin adhesive of 100 weight portions in the described step (1), the particle of 20 weight portions, wherein, described particle comprises PET particle and polystyrene particle, the particle diameter of described PET particle is 5-10 μ m, account for 60% of particle gross weight, the particle diameter of polystyrene particle is 1-5 μ m, accounts for 40% of particle gross weight, described PET particle is 2:1 with the mean grain size ratio of polystyrene particle, and the dried thickness of adhesive layer is 8 μ m.
Flexible particle is the PET particle in the described protective finish, and its compressive deformation ability is relatively poor, and gained reflectance coating anti scuffing performance is relatively poor.
The scratch degree of the described reflectance coating of table 4 Comparative Examples 1-6 and optical performance test data
Test result from table 1 to table 4 can draw; suitable when the particulate material in the protective finish, when addition is an amount of; whether reflectance coating is coated with protective finish; its mist degree, transmittance are without significant change; namely at reflectance coating coating one deck protective finish, can be anti-scratch, and on optical property substantially without affecting; anti scuffing optical reflectance coating provided by the invention has excellent anti scuffing performance when having better optical property.
The above is preferred embodiment of the present invention only, is not for limiting protection scope of the present invention.Every equalization that content is done according to the present invention changes and modifies, and all is encompassed in the claim of the present invention.
Claims (10)
1. an anti scuffing optical reflectance coating is characterized in that, described reflectance coating comprises base material, is provided with particle on the described base material, and described particle is bonded on the described base material by adhesive layer; Described particle comprises flexible particle and inflexibility particle, and wherein, flexible particle accounts for the 40-100% of particle gross weight, and the inflexibility particle accounts for the 0-60% of particle gross weight.
2. anti scuffing optical reflectance coating according to claim 1 is characterized in that, the particle diameter of described flexible particle is 1-30 μ m, and the particle diameter of described inflexibility particle is 0.1-10 μ m; The dried thickness of described adhesive layer is the 1/10-8/10 of flexible particle diameter.
3. anti scuffing optical reflectance coating according to claim 1 is characterized in that, the particle diameter ratio of described flexible particle and inflexibility particle is 2-10:1.
4. anti scuffing optical reflectance coating according to claim 1, it is characterized in that, described flexible particle is the nylon particle, and described inflexibility particle comprises the combination of a kind of in polymethylmethacrylate particle, poly-n-butyl methacrylate particle, polystyrene particle, silicone resin particle, TiO 2 particles, calcium carbonate particle, barium sulphate particle, the silicon dioxide granule or at least two kinds.
5. anti scuffing optical reflectance coating according to claim 1 is characterized in that, described substrate material is polyethylene terephthalate, is added with titania and barium sulphate in the described base material.
6. one of according to claim 1-5 the preparation method of described anti scuffing optical reflectance coating is characterized in that, described preparation method comprises the steps:
(1) preparation coating fluid: add successively adhesive, particle, ultraviolet absorber, solvent, stirred 1-3 hour;
(2) coating fluid with step (1) gained is uniformly coated on the base material, under 80-120 ℃, toasts 1-30 minute.
7. the preparation method of anti scuffing optical reflectance coating according to claim 6 is characterized in that, coating fluid comprises the adhesive of 100 weight portions, the particle of 1-35 weight portion in the described step (1).
8. the preparation method of anti scuffing optical reflectance coating according to claim 7, it is characterized in that, coating fluid comprises the particle of 3-10 weight portion in the described step (1), and described flexible particle accounts for the 50-100% of particle gross weight, and described inflexibility particle accounts for the 0-50% of particle gross weight.
9. the preparation method of anti scuffing optical reflectance coating according to claim 7, it is characterized in that, coating fluid comprises 3-4 weight portion particle in the described step (1), and described flexible particle accounts for the 65-80% of particle gross weight, and described inflexibility particle accounts for the 20-35% of particle gross weight.
10. the preparation method of anti scuffing optical reflectance coating according to claim 7 is characterized in that, described step (1) medium ultraviolet absorbing agent accounts for the 0.01-0.05% of coating fluid general assembly (TW).
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| CN104048207A (en) * | 2014-06-13 | 2014-09-17 | 苏州科利亚照明科技有限公司 | Lamp holder with integrated light guide plate |
| CN106772722A (en) * | 2016-12-29 | 2017-05-31 | 张家港康得新光电材料有限公司 | Diffusion barrier, backlight module and display device |
| CN106903958A (en) * | 2016-03-07 | 2017-06-30 | 宁波长阳科技股份有限公司 | One kind laminating reflectance coating and preparation method thereof |
| CN107656331A (en) * | 2017-11-10 | 2018-02-02 | 合肥合纵光电科技股份有限公司 | A kind of wear-resisting high transflector piece |
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| CN111320903A (en) * | 2018-12-13 | 2020-06-23 | 佳能化成株式会社 | Surface anti-reflective coating for atomized coating and surface anti-reflective coating |
| CN114686065A (en) * | 2020-12-28 | 2022-07-01 | 宁波激智科技股份有限公司 | Lambertian reflector plate and preparation method thereof |
| CN113621159A (en) * | 2021-08-23 | 2021-11-09 | 合肥乐凯科技产业有限公司 | Reflective film and preparation method thereof |
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