CN104371208A - Master batch of high-transmittance and high-masking diffusion plate, method for manufacturing master batch and method for manufacturing diffusion plate - Google Patents
Master batch of high-transmittance and high-masking diffusion plate, method for manufacturing master batch and method for manufacturing diffusion plate Download PDFInfo
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Abstract
The invention discloses master batch of a high-transmittance and high-masking diffusion plate, a method for manufacturing the master batch and a method for manufacturing the diffusion plate. The master batch comprises, by weight, 100 parts of polystyrene, 10-11 parts of organic silicon resin, 0.3-0.4 part of titanium dioxide powder with the particle size of 2-5 micrometers, 0.15-0.2 part of fluorescent brighteners and 0.02-0.025 part of mineral oil. The polystyrene, the organic silicon resin, the titanium dioxide powder, the fluorescent brighteners and the mineral oil are blended with one another and then are squeezed to obtain the master batch, 6.1 parts of the master batch and 100 parts of polystyrene are blended with one another and then are squeezed to obtain mixtures, and the mixtures are further impressed and shaped to obtain the high-transmittance and high-masking diffusion plate. The master batch and the methods have the advantages that the purpose of plastically modifying the master batch mainly can be achieved by diffusion particles by the aid of auxiliary chemical raw materials for color increasing and toughening, accordingly, the diffusion plate has a diffusion function, high-masking effects further can be realized, the transmittance of the diffusion plate can reach 65+/-3%, the haze of the diffusion plate can reach 99%, and the diffusion of the diffusion plate can reach 88+/-5%; the cost of modules further can be reduced while requirements on light weights and thinness of the backlight modules are met.
Description
Technical field
Embodiments of the present invention relate to field of photovoltaic materials, and more specifically, embodiments of the present invention relate to a kind of high saturating high shielding diffuser plate masterbatch, and the preparation method of this masterbatch and utilize the method for this master batch processing diffuser plate.
Background technology
Usually, the backlight module of display unit mainly comprises light source, light guiding plate, light reflecting board, diffuser plate, brightness enhancement film.Wherein, light diffusing sheet has simultaneously to be made from the radiative brightness uniformity of illuminator, and covers the functions such as bright rays, and light diffusing sheet also plays the effect supporting other optical thin films.Light source in backlight module is generally divided into full run-down type and side light type, and full run-down type is at light sources such as bottom surface of light guide plate cold-cathode tube arranged side by side, LED; Side light type is the edge that the light source such as cold-cathode tube, LED is configured at light guiding plate, and light passes through and luminescence forward from light-guide edge.From the view point of raising backlight briliancy, full run-down type is main flow, but in recent years, because liquid-crystal display, LED television etc. are to slimming development, makes the ratio of side light type in increase.Therefore, high saturating high shielding light diffusing sheet application will be more extensive.
Polystyrene, because its good geometrical stability, thermostability, optics are through characteristic, electrical insulation characteristics and small moisture absorption tendency, are widely used in diffuser plate and make.When the polystyrene of non-modified is for making diffuser plate, because its transmittance is higher, the disability glare of the exposed LED of meeting.Current photodiffusion material, having the inorganic of different refractivity or organic diffusion particle mainly through adding in transparent plastics base-material, comprising SiO
2, TiO
2, CaCO
2, BaSO
4with the inorganic particle such as glass microballon, and the organic polymer microparticles such as polyphenylmethyl e pioic acid methyl ester (PMMA, Polymethylmethacrylate), silicone resin, reach the object improving material mist degree.
Two the key technical indexes evaluating photodiffusion material are through rate and mist degree, the mist degree of usual material and transmitance are conflicting, the light scattering ability of tradition photodiffusion material increase material takes the method increasing light diffusing agent usually, and light diffusing agent can cause the decline of transmitance to the absorption of light and covering etc.
Summary of the invention
Instant invention overcomes prior art transmitance and mist degree conflicting, mist degree improves the deficiency that then transmitance reduces, there is provided the embodiment of the preparation method of a kind of high shielding diffuser plate masterbatch and preparation method and diffuser plate, to expect to solve the problem that diffuser plate mist degree improves then transmitance reduction.
For solving above-mentioned technical problem, one embodiment of the present invention by the following technical solutions:
A kind of high saturating high shielding diffuser plate masterbatch, it comprises following component by weight:
Polystyrene 100 parts;
Silicone resin 10 ~ 11 parts;
Titanium dioxide 0.3 ~ 0.4 part;
White dyes 0.15 ~ 0.2 part;
0.02 ~ 0.025 part, mineral oil;
The particle diameter of described titanium dioxide is 2 ~ 5 microns.
Preferably, the saturating high shielding diffuser plate masterbatch of described height comprises following component by weight:
Polystyrene 100 parts;
Silicone resin 10.56 parts;
Titanium dioxide 0.36 part;
White dyes 0.18 part;
0.022 part, mineral oil;
The particle diameter of described titanium dioxide is 3 ~ 4 microns.
The kind of masterbatch and consumption have larger impact to the transmittance of diffuser plate and mist degree, and use the starting material of aforementioned proportion to prepare masterbatch, then can reach 68% by the transmitance of the diffuser plate of master batch processing, mist degree can reach 99%, and diffusibleness can reach 93%.
White dyes can adopt Stilbene-based whitening agent.To present invention employs particle diameter be the titanium dioxide of 2 ~ 5 microns is the titanium dioxide of 3 ~ 4 microns as inorganic light diffusing agent, particularly particle diameter.Just the mist degree of diffuser plate can be made to increase substantially when titanium dioxide content is lower on the one hand, but transmitance declines very little, on the other hand because the size of titanium dioxide particle diameter is more conducive to being scattered in base material, and the fragility of polystyrene raw material itself can be overcome, therefore can improve the toughness of diffuser plate.
Further technical scheme is, described titanium dioxide carries out the modified titanium after blending and modifying by silane coupling agent to its surface.Silane coupling agent can form bonding at the interface of organic filler and inorganic particulate, promote interface fusion, strengthen the property, the dispersiveness of titanium dioxide in resin and bounding force can be improved, improve processing performance and improve the performance such as machinery, electricity and weather of filled plastics (comprising polystyrene), simultaneously not loss material mechanical property again.
Described silane coupling agent can adopt in KH550 (γ-aminopropyl triethoxysilane), KH560 (γ-glycidyl ether oxygen propyl trimethoxy silicane), KH570 (γ-(methacryloxypropyl) propyl trimethoxy silicane), KH792 (N-(β-aminoethyl)-γ-aminopropyltrimethoxysilane), DL602, DL171 any one.
The method using silane coupling agent to carry out blending and modifying to titanium dioxide surface adds in high speed agitator by titanium dioxide and silane coupling agent with the ratio of 100:1.5, and namely high-speed stirring obtains modified titanium in 10 minutes.
Further technical scheme is, described mineral oil is silicone oil or whiteruss.The consistency of these two kinds of mineral oil and polystyrene is fine, and in the masterbatch course of processing, mineral oil easily moving between phase and phase at mixture, can improve processing and lubrication, and can also comparatively be evenly distributed on phase interface.
A preparation method for high shielding diffuser plate masterbatch, it comprises the following steps:
(1) by polystyrene 100 parts, silicone resin 10 ~ 11 parts, particle diameter is the titanium dioxide 0.3 ~ 0.4 part of 2 ~ 5 microns, white dyes 0.15 ~ 0.2 part, and 0.02 ~ 0.025 part, mineral oil mixes, and obtains feedstock blend; Described titanium dioxide carries out the modified titanium after blending and modifying with silane coupling agent to its surface, and described mineral oil is silicone oil (X 2-1401) or whiteruss.
(2) described raw mixture extruding pelletization in twin screw extruder is obtained high saturating high shielding diffuser plate masterbatch, described twin screw extruder each section of temperature is: district's temperature is 170 DEG C; Two district's temperature are 185 DEG C; Three district's temperature are 195 DEG C; Four district's temperature are 200 DEG C; Five district's temperature are 210 DEG C; Six district's temperature are 220 DEG C; Seven district's temperature are 210 DEG C; Die head temperature is 210 DEG C.
Preferably, the preparation method of the saturating high shielding diffuser plate masterbatch of described height comprises the following steps:
(1) by polystyrene 100 parts, silicone resin 10.56 parts, particle diameter is the titanium dioxide 0.36 part of 3 ~ 4 microns, white dyes 0.18 part, and 0.022 part, mineral oil mixes, and obtains feedstock blend;
(2) described raw mixture extruding pelletization in twin screw extruder is obtained high saturating high shielding diffuser plate masterbatch, described twin screw extruder each section of temperature is: district's temperature is 170 DEG C; Two district's temperature are 185 DEG C; Three district's temperature are 195 DEG C; Four district's temperature are 200 DEG C; Five district's temperature are 210 DEG C; Six district's temperature are 220 DEG C; Seven district's temperature are 210 DEG C; Die head temperature is 210 DEG C.
Adopt a method for the saturating high shielding diffuser plate master batch processing diffuser plate of above-mentioned height, it is characterized in that it comprises the following steps:
A, by saturating for described height high shielding diffuser plate masterbatch in drying machine with the temperature drying 30 ~ 60min of 60 DEG C;
B, extrude acquisition compound by after the two melt blending with twin screw extruder with the ratio 6.1:100 of the weight of polystyrene according to the saturating high shielding diffuser plate masterbatch of dried height, twin screw extruder each section of temperature is: district's temperature is 175 DEG C; Two district's temperature are 185 DEG C; Three district's temperature are 195 DEG C; Four district's temperature are 215 DEG C; Five district's temperature are 225 DEG C; Six district's temperature are 220 DEG C; Seven district's temperature are 215 DEG C; Die head temperature is 210 DEG C;
C, the compound imprinting moulding obtained by step B, obtain high saturating high shielding diffuser plate.
Compared with prior art, one of beneficial effect of the present invention is: the invention provides a kind of diffuser plate masterbatch, based on diffusion particle, be aided with the object that the industrial chemicals such as hyperchromic, toughness reinforcing reaches modifying plastics, while making diffuser plate have diffusion function, also have the effect of high shielding, the transmitance of diffuser plate can reach 65 ± 3%, mist degree can reach 99%, and diffusibleness can reach 88 ± 5%.And meeting backlight module gentlier, thinner requirement can also reduce module cost simultaneously.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Embodiment 1
By polystyrene 100Kg, silicone resin 10Kg, particle diameter is that the modified titanium 0.3Kg of 2 microns, white dyes 0.2Kg, mineral oil 0.025Kg (silicone oil) mix, and obtains feedstock blend; Then raw mixture extruding pelletization in twin screw extruder is obtained high saturating high shielding diffuser plate masterbatch, described twin screw extruder each section of temperature is: district's temperature is 170 DEG C; Two district's temperature are 185 DEG C; Three district's temperature are 195 DEG C; Four district's temperature are 200 DEG C; Five district's temperature are 210 DEG C; Six district's temperature are 220 DEG C; Seven district's temperature are 210 DEG C; Die head temperature is 210 DEG C.High saturating high shielding diffuser plate masterbatch in drying machine with for subsequent use after 60 DEG C of dry 30min.
Acquisition compound is extruded by after saturating for dried for 6.1Kg height high shielding diffuser plate masterbatch and 100Kg polystyrene melt blending.The equipment that blending extrusion uses is twin screw extruder, and twin screw extruder each section of temperature is: district's temperature is 175 DEG C; Two district's temperature are 185 DEG C; Three district's temperature are 195 DEG C; Four district's temperature are 215 DEG C; Five district's temperature are 225 DEG C; Six district's temperature are 220 DEG C; Seven district's temperature are 215 DEG C; Die head temperature is 210 DEG C.
By compound imprinting moulding, obtain high shielding diffuser plate.
Embodiment 2
By polystyrene 100Kg, silicone resin 11Kg, particle diameter is that the modified titanium 0.4Kg of 5 microns, white dyes 0.15Kg, mineral oil 0.02Kg (whiteruss) mix, and obtains feedstock blend; Then raw mixture extruding pelletization in twin screw extruder is obtained high saturating high shielding diffuser plate masterbatch, described twin screw extruder each section of temperature is: district's temperature is 170 DEG C; Two district's temperature are 185 DEG C; Three district's temperature are 195 DEG C; Four district's temperature are 200 DEG C; Five district's temperature are 210 DEG C; Six district's temperature are 220 DEG C; Seven district's temperature are 210 DEG C; Die head temperature is 210 DEG C.High saturating high shielding diffuser plate masterbatch in drying machine with for subsequent use after 60 DEG C of dry 60min.
Acquisition compound is extruded with twin screw extruder by after saturating for dried for 6.1Kg height high shielding diffuser plate masterbatch and 100Kg polystyrene melt blending.Twin screw extruder each section of temperature is: district's temperature is 175 DEG C; Two district's temperature are 185 DEG C; Three district's temperature are 195 DEG C; Four district's temperature are 215 DEG C; Five district's temperature are 225 DEG C; Six district's temperature are 220 DEG C; Seven district's temperature are 215 DEG C; Die head temperature is 210 DEG C.
By compound imprinting moulding, obtain high shielding diffuser plate.
Embodiment 3
By polystyrene 100Kg, silicone resin 10.56Kg, particle diameter is that the titanium dioxide 0.36Kg of 3 microns, white dyes 0.18Kg, mineral oil 0.022Kg (silicone oil) mix, and obtains feedstock blend; Then raw mixture extruding pelletization in twin screw extruder is obtained high saturating high shielding diffuser plate masterbatch, described twin screw extruder each section of temperature is: district's temperature is 170 DEG C; Two district's temperature are 185 DEG C; Three district's temperature are 195 DEG C; Four district's temperature are 200 DEG C; Five district's temperature are 210 DEG C; Six district's temperature are 220 DEG C; Seven district's temperature are 210 DEG C; Die head temperature is 210 DEG C.High saturating high shielding diffuser plate masterbatch in drying machine with for subsequent use after 60 DEG C of dry 45min.
Acquisition compound is extruded by after saturating for dried for 6.1Kg height high shielding diffuser plate masterbatch and 100Kg polystyrene melt blending.The equipment that blending extrusion uses is twin screw extruder, and forcing machine each section of temperature is: district's temperature is 175 DEG C; Two district's temperature are 185 DEG C; Three district's temperature are 195 DEG C; Four district's temperature are 215 DEG C; Five district's temperature are 225 DEG C; Six district's temperature are 220 DEG C; Seven district's temperature are 215 DEG C; Die head temperature is 210 DEG C.
By compound imprinting moulding, obtain high shielding diffuser plate.Test the transmitance of high saturating high shielding diffuser plate, mist degree and diffusibleness, testing standard is as table 1:
Table 1 diffuser plate performance test standard
| Project | Testing standard | Testing tool |
| Transmittance | JIS K7361-1 | Haze meter (CM-3600A) |
| Mist degree | JIS K7136 | |
| Homogeneity | Luminance test instrument (BM-7) |
Adopt the testing standard in table 1 and/or instrument, the transmitance recording the diffuser plate of the present embodiment is 67%, and mist degree is 99%, and diffusibleness is 90%.
Embodiment 4
By polystyrene 100Kg, silicone resin 10.56Kg, particle diameter is that the modified titanium 0.36Kg of 4 microns, white dyes 0.18Kg, mineral oil 0.022Kg (silicone oil) mix, and obtains feedstock blend; Then raw mixture extruding pelletization in twin screw extruder is obtained high saturating high shielding diffuser plate masterbatch, described twin screw extruder each section of temperature is: district's temperature is 170 DEG C; Two district's temperature are 185 DEG C; Three district's temperature are 195 DEG C; Four district's temperature are 200 DEG C; Five district's temperature are 210 DEG C; Six district's temperature are 220 DEG C; Seven district's temperature are 210 DEG C; Die head temperature is 210 DEG C.High saturating high shielding diffuser plate masterbatch in drying machine with for subsequent use after 60 DEG C of dry 45min.
Acquisition compound is extruded by after saturating for dried for 6.1Kg height high shielding diffuser plate masterbatch and 100Kg polystyrene melt blending.The equipment that blending extrusion uses is twin screw extruder, and forcing machine each section of temperature is: district's temperature is 175 DEG C; Two district's temperature are 185 DEG C; Three district's temperature are 195 DEG C; Four district's temperature are 215 DEG C; Five district's temperature are 225 DEG C; Six district's temperature are 220 DEG C; Seven district's temperature are 215 DEG C; Die head temperature is 210 DEG C.
By compound imprinting moulding, obtain high shielding diffuser plate.Adopt the transmitance of the testing standard of table 1 and the high saturating high shielding diffuser plate of instrument test, mist degree and diffusibleness, the transmitance recording the diffuser plate of the present embodiment is 68%, and mist degree is 99%, and diffusibleness is 88%.
Embodiment 5
By polystyrene 100Kg, silicone resin 10Kg, particle diameter is that the titanium dioxide 0.4Kg of 5 microns, white dyes 0.2Kg, mineral oil 0.02Kg (whiteruss) mix, and obtains feedstock blend; Then raw mixture extruding pelletization in twin screw extruder is obtained high saturating high shielding diffuser plate masterbatch, described twin screw extruder each section of temperature is: district's temperature is 170 DEG C; Two district's temperature are 185 DEG C; Three district's temperature are 195 DEG C; Four district's temperature are 200 DEG C; Five district's temperature are 210 DEG C; Six district's temperature are 220 DEG C; Seven district's temperature are 210 DEG C; Die head temperature is 210 DEG C.High saturating high shielding diffuser plate masterbatch in drying machine with for subsequent use after 60 DEG C of dry 45min.
Acquisition compound is extruded by after saturating for dried for 6.1Kg height high shielding diffuser plate masterbatch and 100Kg polystyrene melt blending.The equipment that blending extrusion uses is twin screw extruder, and forcing machine each section of temperature is: district's temperature is 175 DEG C; Two district's temperature are 185 DEG C; Three district's temperature are 195 DEG C; Four district's temperature are 215 DEG C; Five district's temperature are 225 DEG C; Six district's temperature are 220 DEG C; Seven district's temperature are 215 DEG C; Die head temperature is 210 DEG C.
By compound imprinting moulding, obtain high shielding diffuser plate.Adopt the transmitance of the testing standard of table 1 and the high saturating high shielding diffuser plate of instrument test, mist degree and diffusibleness, the transmitance recording the diffuser plate of the present embodiment is 62%, and mist degree is 99%, and diffusibleness is 83%.
Comparative example 1
By polystyrene 100Kg, silicone resin 10.56Kg, particle diameter is the titanium dioxide 0.36Kg of 0.5 micron, white dyes 0.18Kg, and mineral oil 0.022Kg mixes, and obtains feedstock blend; Then raw mixture extruding pelletization in twin screw extruder is obtained high saturating high shielding diffuser plate masterbatch, described twin screw extruder each section of temperature is: district's temperature is 170 DEG C; Two district's temperature are 185 DEG C; Three district's temperature are 195 DEG C; Four district's temperature are 200 DEG C; Five district's temperature are 210 DEG C; Six district's temperature are 220 DEG C; Seven district's temperature are 210 DEG C; Die head temperature is 210 DEG C.High saturating high shielding diffuser plate masterbatch in drying machine with for subsequent use after 60 DEG C of dry 45min.
Acquisition compound is extruded by after saturating for dried for 6.1Kg height high shielding diffuser plate masterbatch and 100Kg polystyrene melt blending.The equipment that blending extrusion uses is twin screw extruder, and forcing machine each section of temperature is: district's temperature is 175 DEG C; Two district's temperature are 185 DEG C; Three district's temperature are 195 DEG C; Four district's temperature are 215 DEG C; Five district's temperature are 225 DEG C; Six district's temperature are 220 DEG C; Seven district's temperature are 215 DEG C; Die head temperature is 210 DEG C.
By compound imprinting moulding, obtain high shielding diffuser plate.Adopt the transmitance of the testing standard of table 1 and the high saturating high shielding diffuser plate of instrument test, mist degree and diffusibleness, the transmitance recording the diffuser plate of the present embodiment is 60%, and mist degree is 90%, and diffusibleness is 80%.Titanium dioxide change of size causes the degradation of diffuser plate.
Comparative example 2
By polystyrene 95Kg, silicone resin 6Kg, particle diameter is the titanium dioxide 0.6Kg of 3 microns, and white dyes 0.1Kg mixes, and does not use mineral oil, obtains feedstock blend; Then raw mixture extruding pelletization in twin screw extruder is obtained high saturating high shielding diffuser plate masterbatch, described twin screw extruder each section of temperature is: district's temperature is 170 DEG C; Two district's temperature are 185 DEG C; Three district's temperature are 195 DEG C; Four district's temperature are 200 DEG C; Five district's temperature are 210 DEG C; Six district's temperature are 220 DEG C; Seven district's temperature are 210 DEG C; Die head temperature is 210 DEG C.High saturating high shielding diffuser plate masterbatch in drying machine with for subsequent use after 60 DEG C of dry 45min.
Acquisition compound is extruded by after saturating for dried for 6.1Kg height high shielding diffuser plate masterbatch and 100Kg polystyrene melt blending.The equipment that blending extrusion uses is twin screw extruder, and forcing machine each section of temperature is: district's temperature is 175 DEG C; Two district's temperature are 185 DEG C; Three district's temperature are 195 DEG C; Four district's temperature are 215 DEG C; Five district's temperature are 225 DEG C; Six district's temperature are 220 DEG C; Seven district's temperature are 215 DEG C; Die head temperature is 210 DEG C.
By compound imprinting moulding, obtain high shielding diffuser plate.Adopt the transmitance of the testing standard of table 1 and the high saturating high shielding diffuser plate of instrument test, mist degree and diffusibleness, the transmitance recording the diffuser plate of the present embodiment is 50%, and mist degree is 85%, and diffusibleness is 85%.Without mineral oil to titanium dioxide surface blending and modifying, the transmitance of diffuser plate and mist degree are subject to larger impact.
Comparative example 3
By polystyrene 100Kg, silicone resin 10.56Kg, particle diameter is that the modified titanium 0.36Kg of 4 microns, white dyes 0.18Kg, mineral oil 0.022Kg (silicone oil) mix, and obtains feedstock blend; Then raw mixture extruding pelletization in twin screw extruder is obtained high saturating high shielding diffuser plate masterbatch, described twin screw extruder each section of temperature is: district's temperature is 170 DEG C; Two district's temperature are 185 DEG C; Three district's temperature are 195 DEG C; Four district's temperature are 200 DEG C; Five district's temperature are 210 DEG C; Six district's temperature are 220 DEG C; Seven district's temperature are 210 DEG C; Die head temperature is 210 DEG C.High saturating high shielding diffuser plate masterbatch in drying machine with for subsequent use after 60 DEG C of dry 45min.
Acquisition compound is extruded by after saturating for dried for 10Kg height high shielding diffuser plate masterbatch and 100Kg polystyrene melt blending.The equipment that blending extrusion uses is twin screw extruder, and forcing machine each section of temperature is: district's temperature is 175 DEG C; Two district's temperature are 185 DEG C; Three district's temperature are 195 DEG C; Four district's temperature are 215 DEG C; Five district's temperature are 225 DEG C; Six district's temperature are 220 DEG C; Seven district's temperature are 215 DEG C; Die head temperature is 210 DEG C.
By compound imprinting moulding, obtain high shielding diffuser plate.Adopt the transmitance of the testing standard of table 1 and the high saturating high shielding diffuser plate of instrument test, mist degree and diffusibleness, the transmitance recording the diffuser plate of the present embodiment is 60%, and mist degree is 92%, and diffusibleness is 83%.Therefore, when high saturating high shielding diffuser plate masterbatch and polystyrene melt blending prepare diffuser plate, the mist degree of the comparison diffuser plate of the consumption of the two has considerable influence.
Although with reference to multiple explanatory embodiment of the present invention, invention has been described here, but, should be appreciated that, those skilled in the art can design a lot of other amendment and embodiment, these amendments and embodiment will drop within spirit disclosed in the present application and spirit.More particularly, in the scope of and claim open in the application, multiple modification and improvement can be carried out to the building block of subject combination layout and/or layout.Except the modification of carrying out building block and/or layout is with except improvement, to those skilled in the art, other purposes also will be obvious.
Claims (7)
1. a high shielding diffuser plate masterbatch, is characterized in that it comprises following component by weight:
Polystyrene 100 parts;
Silicone resin 10 ~ 11 parts;
Titanium dioxide 0.3 ~ 0.4 part;
White dyes 0.15 ~ 0.2 part;
0.02 ~ 0.025 part, mineral oil;
The particle diameter of described titanium dioxide is 2 ~ 5 microns.
2. the saturating high shielding diffuser plate masterbatch of height according to claim 1, is characterized in that it comprises following component by weight:
Polystyrene 100 parts;
Silicone resin 10.56 parts;
Titanium dioxide 0.36 part;
White dyes 0.18 part;
0.022 part, mineral oil;
The particle diameter of described titanium dioxide is 3 ~ 4 microns.
3. the saturating high shielding diffuser plate masterbatch of height according to claim 2, is characterized in that described titanium dioxide carries out the modified titanium after blending and modifying by silane coupling agent to its surface.
4. the saturating high shielding diffuser plate masterbatch of the height according to Claims 2 or 3, is characterized in that described mineral oil is silicone oil or whiteruss.
5. a preparation method for high shielding diffuser plate masterbatch, is characterized in that it comprises the following steps:
(1) by polystyrene 100 parts, silicone resin 10 ~ 11 parts, particle diameter is the titanium dioxide 0.3 ~ 0.4 part of 2 ~ 5 microns, white dyes 0.15 ~ 0.2 part, and 0.02 ~ 0.025 part, mineral oil mixes, and obtains feedstock blend;
(2) described raw mixture extruding pelletization in twin screw extruder is obtained high saturating high shielding diffuser plate masterbatch, described twin screw extruder each section of temperature is: district's temperature is 170 DEG C; Two district's temperature are 185 DEG C; Three district's temperature are 195 DEG C; Four district's temperature are 200 DEG C; Five district's temperature are 210 DEG C; Six district's temperature are 220 DEG C; Seven district's temperature are 210 DEG C; Die head temperature is 210 DEG C.
6. the preparation method of the saturating high shielding diffuser plate masterbatch of height according to claim 5, is characterized in that it comprises the following steps:
(1) by polystyrene 100 parts, silicone resin 10.56 parts, particle diameter is the titanium dioxide 0.36 part of 3 ~ 4 microns, white dyes 0.18 part, and 0.022 part, mineral oil mixes, and obtains feedstock blend;
(2) described raw mixture extruding pelletization in twin screw extruder is obtained high saturating high shielding diffuser plate masterbatch, described twin screw extruder each section of temperature is: district's temperature is 170 DEG C; Two district's temperature are 185 DEG C; Three district's temperature are 195 DEG C; Four district's temperature are 200 DEG C; Five district's temperature are 210 DEG C; Six district's temperature are 220 DEG C; Seven district's temperature are 210 DEG C; Die head temperature is 210 DEG C.
7. adopt a method for high saturating high shielding diffuser plate master batch processing diffuser plate described in claim 5 or 6, it is characterized in that it comprises the following steps:
A, by saturating for described height high shielding diffuser plate masterbatch in drying machine with the temperature drying 30 ~ 60min of 60 DEG C;
B, extrude acquisition compound by after the two melt blending with twin screw extruder with the ratio 6.1:100 of the weight of polystyrene according to the saturating high shielding diffuser plate masterbatch of dried height, twin screw extruder each section of temperature is: district's temperature is 175 DEG C; Two district's temperature are 185 DEG C; Three district's temperature are 195 DEG C; Four district's temperature are 215 DEG C; Five district's temperature are 225 DEG C; Six district's temperature are 220 DEG C; Seven district's temperature are 215 DEG C; Die head temperature is 210 DEG C;
C, the compound imprinting moulding obtained by step B, obtain high saturating high shielding diffuser plate.
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| CN105017646A (en) * | 2015-08-06 | 2015-11-04 | 东莞市鑫聚光电科技股份有限公司 | Formula for producing PP diffusion plates of display screen backlight source and LED panel light |
| CN105175916A (en) * | 2015-08-27 | 2015-12-23 | 常州市联丰光电科技有限公司 | Production technology for composite co-extrusion PS diffuser plate |
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| WO2016202305A1 (en) * | 2015-06-16 | 2016-12-22 | 广东瑞捷光电股份有限公司 | Masterbatch, resin composition, diffusion plate and method for preparing the diffusion plate |
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| CN107418076A (en) * | 2017-06-28 | 2017-12-01 | 常州大智光电有限公司 | Lightweight diffuser plate and its preparation technology |
| CN107434892A (en) * | 2017-06-28 | 2017-12-05 | 常州大智光电有限公司 | Diffuser plate and preparation method thereof |
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