CN103176227B - Light diffusion plate and manufacturing method thereof - Google Patents
Light diffusion plate and manufacturing method thereof Download PDFInfo
- Publication number
- CN103176227B CN103176227B CN201310098990.2A CN201310098990A CN103176227B CN 103176227 B CN103176227 B CN 103176227B CN 201310098990 A CN201310098990 A CN 201310098990A CN 103176227 B CN103176227 B CN 103176227B
- Authority
- CN
- China
- Prior art keywords
- light diffusing
- light
- diffusing sheet
- agent
- maphposs
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000009792 diffusion process Methods 0.000 title abstract description 14
- 238000004519 manufacturing process Methods 0.000 title abstract description 6
- 239000004793 Polystyrene Substances 0.000 claims abstract description 12
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims abstract description 11
- 239000004926 polymethyl methacrylate Substances 0.000 claims abstract description 11
- 229920002223 polystyrene Polymers 0.000 claims abstract description 9
- 239000000203 mixture Substances 0.000 claims abstract description 7
- 239000003795 chemical substances by application Substances 0.000 claims description 29
- 238000002360 preparation method Methods 0.000 claims description 8
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 7
- 230000000977 initiatory effect Effects 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- -1 methacryloxypropyl phenyl Chemical group 0.000 claims description 4
- 239000000178 monomer Substances 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 3
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 claims description 2
- OZAIFHULBGXAKX-VAWYXSNFSA-N AIBN Substances N#CC(C)(C)\N=N\C(C)(C)C#N OZAIFHULBGXAKX-VAWYXSNFSA-N 0.000 claims description 2
- 238000002834 transmittance Methods 0.000 abstract description 4
- 239000002270 dispersing agent Substances 0.000 abstract 2
- 239000000463 material Substances 0.000 description 8
- 230000003287 optical effect Effects 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 5
- 239000003595 mist Substances 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 230000007423 decrease Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N monobenzene Natural products C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000149 argon plasma sintering Methods 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 239000003063 flame retardant Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 235000021419 vinegar Nutrition 0.000 description 2
- 239000000052 vinegar Substances 0.000 description 2
- 235000003283 Pachira macrocarpa Nutrition 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical group C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 1
- 241001083492 Trapa Species 0.000 description 1
- 235000014364 Trapa natans Nutrition 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000000805 composite resin Substances 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000009396 hybridization Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 235000009165 saligot Nutrition 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Landscapes
- Optical Elements Other Than Lenses (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to a light diffusion plate and a manufacturing method thereof. The light diffusion plate comprises the following components in percentage by weight: 90%-99.99% of polymethyl polymethyl methacrylate and 0.01%-10.0% of light dispersing agent. The light dispersing agent is a co-mixture of polystyrene (Pst) and methyl propene acyloxy propyl phenyl cage-shaped oligomeric silsesquioxane (MAPhPOSS). The light diffusion plate manufactured by the manufacturing method disclosed by the invention is balanced in light transmittance and haze, so that the impact resistance is greatly improved. Moreover, the light diffusion plate is good in dimension stability, good in uniformity and easy to machine.
Description
Technical field
Traditional fluorescent lamp lamp source due to power consumption comparatively large, so operating cost is higher.Light diffusing sheet energy fully scattering LED lamp source, after using LED lamp source and light diffusing sheet instead, can save the expense of more than 80%, meet the requirement of contemporary society's low-carbon environment-friendly.Light diffusing sheet utilizes transmitted light constantly to reflect between chemical particle and resin, reflects and scattering, and while covering light emitting source and dazzling light source, light source can be made to give out evenly, soft, light attractive in appearance, reaches the opaque comfortable effect of printing opacity.It is characterized by and there is sufficient light transmission and light diffusing, be used for improving the uniformity coefficient of back light by the light scattering of sheet material, thus obtain a kind of novel optical material of uniform surface optical illumination.
The technology that oneself has, [the CN1402083A such as Lin Junyu, diffuser plate and manufacture method thereof] disclosed in diffuser plate, be form the diffuser plate of two-layer composite by transparency carrier (such as acrylic plate, poly-carbonic acid vinegar PC plate or glass etc.) and liquid state diffusion film through polyreaction combination by coating.Do not possess due to said substrate or seldom possess light diffusion, and only carry out once light diffusion by diffusion barrier, add due to its take be coated with cloth production process, the depth of parallelism of the flatness on diffusion barrier surface and diffusion barrier and substrate is all poor, light diffusion effect is undesirable, and causes the aetiolation of diffuser plate and life-span decline also not to have effective counter-measure to ultraviolet.Dou Xiaoming [CN201859228U, a kind of light diffusing sheet] diffuser plate aspect up and down all introduces layers of prisms, lens jacket is used as optical structure layers, utilize the refraction of light, principle of reflection makes diffuser plate have better light transmission, decrease the reflection loss of light, but have employed and account for the production cost that the highest prismatic lens of cost ratio substantially increases light diffusing sheet.[the CN101493536A such as Wang Wenxian, light diffusing sheet and preparation method thereof] for reducing the use of prism thin slice, the side surface heat of light diffusing sheet extrude there is multiple fine protrusions and be covered with light-collecting thin layer increasing optical efficiency, copy water chestnut mirror structure and obtain the one-body molded optical scattering structure of the prism both with prism thin slice and light diffusing sheet function.After but the surface of light diffusing sheet adds prism structure, the fine structure on light diffusing sheet surface (as, prism structure) easilier in subsequent process, be subject to the metals such as operating personnel, dust or framework or hard material institute's scratch and damage product, and then cause the fraction defective of Integral back optical module to promote.In addition, the diffusion structure with surface structure often only can promote screening capacity, for the limited efficacy increasing front face brightness.Not so, its light extraction efficiency is then limited.[the CN102219989A such as Hao Yuanzeng, a kind of LED lamp poly-carbonic acid vinegar resin composite materials of fire-retardant light diffusion and preparation method thereof] for improving the range of application of product, the organic silicon fibre retardant adding 2%-5% in light diffusing sheet is to improve the anti-flammability of light diffusing sheet and to overcome single diffusant and be difficult to reach by inorganic and organic light diffusing agent is composite the shortcoming that mist degree and transmittance balance.General light diffusing agent joins in PC or PMMA, between light scattering agent and matrix, compatibility is bad, when sample is hit, scatterer particle comes off from matrix, there is brittle fracture in sample, thus causing notch impact strength to decline, during processing light diffusing sheet, light diffusing sheet impact strength decreased even has influence on use (especially large area light diffusing sheet).Therefore produce a kind of have excellent light expand the light diffusing sheet penetrating performance have excellent mechanical property concurrently simultaneously and processing characteristics very important.
Summary of the invention
The invention provides a kind of acrylic light diffusing sheet.It is low that described light diffusing sheet can be good at solving existing light diffusing sheet optical performance, the imbalance of light transmission rate and mist degree, and due to the problem such as the bad light diffusing sheet impact strength decreased caused of compatibility of base material and light diffusing agent, the light diffusing sheet of preparation has good dimensional stability and thermal stability, easily processes.
Object of the present invention is achieved through the following technical solutions:
Described a kind of acrylic light diffusing sheet, is characterized in that the composition of this light dispersion plate and mass ratio are:
PMMA 90～99.99
Light diffusing agent 0.01 ~ 10
Described light diffusing agent is the blend of methacryloxypropyl phenyl polyhedral oligomeric silsesquioxane (MAPhPOSS) and polystyrene (PSt), and wherein MAPhPOSS accounts for 5% ~ 15% of light diffusing agent total amount.
Light diffusing agent mixing 0.01 ~ 10 mass parts, preferably 0.05 ~ 8 mass parts, more preferably 0.1 ~ 3 mass parts that the present invention is used.The combined amount of light diffusing agent more than 0.01 mass parts, then manifests light diffusing, and brightness is risen.Combined amount is below 10 mass parts, then light diffusing is not superfluous, and brightness does not decline.
The preparation method of described PMMA light diffusing sheet is:
By monomer M MA 90 DEG C of prepolymerization 10 ~ 40min in a kettle., cool stand-by; The potpourri of light diffusing agent PSt and MAPhPOSS and initiating agent are added stirring and dissolving in prepolymer, adds in mould after mixing, after 50 ~ 80 DEG C of water-bath 2 ~ 4h, take out, high-temperature baking 2 ~ 4h, the demoulding, obtain PMMA light diffusing sheet.
Described initiating agent is azoisobutyronitrile AIBN.
The advantage of this light diffusing sheet is mainly reflected in:
MAPhPOSS is as a kind of novel nanometer organic/inorganic hybridization material, add in light diffusing agent the advantage having inorganic light diffusing agent and organic light diffusing agent concurrently to, and MAPhPOSS with multiple benzene radicals and esters of acrylic acid group make MAPhPOSS become the two-phase physical crosslinking point of a similar cross-linked network, with PS and PMMA base material, there is good compatibility simultaneously, the dispersiveness of PS in PMMA is made to promote significantly, the dispersion of the light diffusing sheet had good uniformity can be obtained, transmitance and the mist degree of light diffusing sheet are balanced, shock resistance gets a promotion simultaneously.The siloxane structure of the cage modle that POSS monomer is introduced and multiple benzene radicals can increase the fire-retardant of light diffusing sheet, and the basic usability such as thermal stability, the light diffusing sheet of preparation has good dimensional stability, and homogeneity is good, easily processes.In addition, with MAPhPOSS and polystyrene blend for light diffusing agent, when also solving traditional PS t microballoon as light diffusing agent, styrene monomer addition is very few, does not have shaded effect, and addition too much can produce to be separated and produce the problem of dark fringe.
Accompanying drawing explanation
Fig. 1 is the light diffusing sheet schematic diagram of high transmission rate and haze in the embodiment of the present invention.
Fig. 2 be light diffusing agent addition very few time light diffusing sheet schematic diagram.
Fig. 3 be add preferred amounts light diffusing agent but MAPhPOSS account for light diffusing agent composition very few time produce the light diffusing sheet schematic diagram be separated.
Embodiment
Object of the present invention, advantage and disadvantage, makes an explanation the non-limitative illustration by preferred embodiment below.These embodiments are only the prominent examples of application technical solution of the present invention, allly take equivalent replacement or equivalent transformation and the technical scheme that formed, all drop within the scope of protection of present invention.
The preparation of 1.PMMA light diffusing sheet:
By monomer M MA 90 DEG C of prepolymerization 30min in a kettle., cool stand-by; The potpourri of light diffusing agent PSt and MAPhPOSS and initiating agent are added stirring and dissolving in prepolymer, adds in mould after mixing, after 80 DEG C of water-bath 4h, take out, 100 DEG C of high-temperature baking 4h, the demoulding, obtains PMMA light diffusing sheet.
In formula, each component can regulate by following percentage by weight:
2. performance test:
Transmittance test and mist degree test adopt transmittance mist degree analyzer (being produced by Shanghai Precision Scientific Apparatus Co., Ltd) according to standards of American society of test materials ASTM D1003-61 (1997), detect the light transmission of light diffusing sheet obtained in light diffusing sheet embodiment 1-6 and light diffusing, test sample plate thickness is 2mm.Shown in test result sees the following form.
Claims (3)
1. an acrylic light diffusing sheet, is characterized in that the composition of this light diffusing sheet and mass ratio are:
PMMA 90～99.99；
Light diffusing agent 0.01 ~ 10;
Described light diffusing agent is the blend of methacryloxypropyl phenyl polyhedral oligomeric silsesquioxane (MAPhPOSS) and polystyrene (PSt), and wherein MAPhPOSS accounts for 5% ~ 15% of light diffusing agent total amount.
2. a kind of acrylic light diffusing sheet according to claim 1, is characterized in that described light diffusing agent blending ratio is 0.1 ~ 3 mass parts.
3. the preparation method of PMMA light diffusing sheet according to claim 1, is characterized in that step is as follows:
By monomer M MA 90 DEG C of prepolymerization 10 ~ 40min in a kettle., cool stand-by; The potpourri of light diffusing agent PSt and MAPhPOSS and initiating agent are added stirring and dissolving in prepolymer, add after mixing in mould, after 50 ~ 80 DEG C of water-bath 2 ~ 4h, take out, high-temperature baking 2 ~ 4h, the demoulding, obtains acrylic light diffusing sheet, and described initiating agent is azoisobutyronitrile AIBN.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310098990.2A CN103176227B (en) | 2013-03-26 | 2013-03-26 | Light diffusion plate and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310098990.2A CN103176227B (en) | 2013-03-26 | 2013-03-26 | Light diffusion plate and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103176227A CN103176227A (en) | 2013-06-26 |
| CN103176227B true CN103176227B (en) | 2015-04-01 |
Family
ID=48636206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310098990.2A Expired - Fee Related CN103176227B (en) | 2013-03-26 | 2013-03-26 | Light diffusion plate and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103176227B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103709571B (en) * | 2013-12-20 | 2016-07-06 | 上海日之升新技术发展有限公司 | A kind of light diffusional modification PMMA material and preparation method thereof |
| CN104371208B (en) * | 2014-12-05 | 2017-04-19 | 成都领航科技股份有限公司 | Master batch of high-transmittance and high-masking diffusion plate, method for manufacturing master batch and method for manufacturing diffusion plate |
| CN105153615A (en) * | 2015-10-09 | 2015-12-16 | 吴洲 | Matte and frosted polymethyl methacrylate (PMMA) transparent material |
| CN107914437A (en) * | 2017-11-24 | 2018-04-17 | 江苏瑞博光电科技有限公司 | A kind of bilayer LED desk lamp lampshade composite material |
| CN114933794B (en) * | 2022-06-20 | 2023-11-03 | 深圳市康显科技有限公司 | High-permeability high-fog type light diffusion sheet and preparation method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102183804B (en) * | 2011-03-11 | 2013-03-13 | 北京化工大学 | Multi-layer variable combined diffusion plate |
| CN102585085B (en) * | 2011-12-29 | 2014-04-02 | 广州科苑新型材料有限公司 | Polymethacrylate copolymer and photodiffusion section bar prepared by adopting same as raw material |
-
2013
- 2013-03-26 CN CN201310098990.2A patent/CN103176227B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN103176227A (en) | 2013-06-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103176227B (en) | Light diffusion plate and manufacturing method thereof | |
| TWI343501B (en) | ||
| CN103193915B (en) | A kind of light diffusing agent and PMMA light diffusing sheet and preparation method thereof | |
| JP2013517602A (en) | Lighting device with viscoelastic light guide | |
| CN1934468A (en) | Circularly polarizing plate, optical film and image display | |
| CN102134383A (en) | Light scattering polycarbonate composition for light emitting diode (LED) lighting and use thereof | |
| CN1794016A (en) | Hard-coated antiglare film and method of manufacturing the same | |
| CN1790060A (en) | Hard-coated film and method of manufacturing the same | |
| CN105445830A (en) | Brightness enhancement film, backlight module and liquid crystal display device | |
| CN1934490A (en) | Optical film and liquid crystal display device | |
| CN102702713A (en) | Light scattering polycarbonate composite and light scattering materials (such as films, sheets, plates) prepared from light scattering polycarbonate composite | |
| CN105377970A (en) | Wavelength dispersion adjustment agent, resin composition, and method for adjusting wavelength dispersion of resin | |
| TW201111435A (en) | Acrylic film for punching, plane light source apparatus, and fabricating method of optical element | |
| CN103193914A (en) | Optical diffusion agent for acrylic optical diffusion board and preparation method of optical diffusion board | |
| TW202340432A (en) | A liquid crystal film and preparation method and application thereof | |
| TWI408044B (en) | Multi-functional polyester films and a method for manufacturing the same | |
| CN103293576A (en) | Diffusion plate with functions of light collection, light diffusion and light reflection | |
| JP7124050B2 (en) | Resin composition and dope for film production by solution casting method | |
| JP5230011B2 (en) | Transparent plastic substrate | |
| CN102096127B (en) | Three-layer composite type anti-scrape high-performance optical diffusion film and preparation method thereof | |
| JP6060106B2 (en) | Brightness improving film, polarizing plate, and image display device | |
| TW201007217A (en) | Resin composition and light diffusion plate with thermal resistance and impact resistance | |
| TWI529203B (en) | Polysiloxane core-shell microspheres and preparation method thereof | |
| CN1330982C (en) | Excellent light transmission diffusibility synthetic resin formed product | |
| CN106279549A (en) | A kind of Multifunction light diffusing agent and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150401 |