CN103965559B - Production method of PS (Polystyrene) diffusion plates of backlight source of display screen and LED (Light-Emitting Diode) panel light - Google Patents
Production method of PS (Polystyrene) diffusion plates of backlight source of display screen and LED (Light-Emitting Diode) panel light Download PDFInfo
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- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
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- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
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Abstract
The invention discloses a production method of PS diffusion plates of a backlight source of a display screen and an LED panel light. The production method comprises a material preparation step, an optical master batch preparation step, an extrusion molding step, a stress relieving step and a trimming step. Through the process, the optical performances of the diffusion plates are changed internally so that chemical polymers which are inside the diffusion plates and different in refractive index can be dispersed uniformly, rather than being changed from the surface. The production method disclosed by the invention is simple in process, easy to implement and low in production cost, and the produced diffusion plates have extremely good optical performances.
Description
Technical field
The present invention relates to the technical field of producing of diffuser plate, especially relate to the PS diffuser plate production method of straight-down negative display backlight source and LED flat lamp.
Background technology
In prior art, the diffuser plate be used in display backlight source is a translucent methacrylate sheet, light source generally uses LED light bar, the diffuser plate being used in straight-down negative display backlight source and LED flat lamp needs to have good optical property, comprise the dispersing property to light, reflect performance and wear transmission performance, prior art goes out sags and crests or concave point striped on a surface of diffuser plate or two surface working, it is for improving the dispersing property of diffuser plate to light, the light that LED light bar point source of light is launched can homogenizing after being launched by diffuser plate, this technology improves the dispersing property of diffuser plate to light by changing the configuration of surface of diffuser plate, although it has certain dissemination, but, it can form a kind of optical effect of atomization on the surface of diffuser plate, considerably reduce refraction performance and the light transmission of diffuser plate, this is necessary to be improved.
Summary of the invention
For the deficiency that prior art exists, the object of this invention is to provide a kind of diffuser plate being used in straight-down negative display backlight source and LED flat lamp of improvement of production process, its technique is simple, easy to implement, production cost is low, and the diffuser plate produced has fabulous optical property.
To achieve these goals, the technical solution adopted in the present invention is:
The PS diffuser plate production method of display backlight source and LED flat lamp, comprises the following steps:
Prepare this material step, select PS plastic grain as this material;
Make optics master batch step, the component of optics master batch comprises by weight: 40 ~ 90 parts of these material choosing out from 100 parts of these material and 10 ~ 60 parts of light transmission plastics, and light transmission plastics comprise the light transmission plastics that at least one light refractive index is different from the light refractive index of this material; Manufacturing optics master batch by dropping into dual-screw pelletizer after the mixing of the component uniform stirring of optics master batch, making gross weight than the optics master batch being 100 parts;
Manufacture in the process of optics master batch the mixture adding in following component one or more at dual-screw pelletizer, the optics master batch made has several different specific refraction,
Extrusion moulding step, chooses 100 parts of these material by weight, chooses 1 ~ 10 part and makes the produced optics master batch of optics master batch step, put in extrusion shaping machine, mold diffuser plate sheet material by extrusion shaping machine after being uniformly mixed;
Finished product.
In further technical scheme, described making optics master batch step, the light transmission plastics making optics master batch comprise one or more mixture of organosilicon microballoon, PMMA microsphere, MS microballoon, PP microballoon, PMMA plastic grain, PP plastic grain, PE plastic grain and MS plastic grain.
In further technical scheme, make optics master batch step, dual-screw pelletizer is divided between intake zone by granulation process, melting interval, mixing interval, between discharge zone, the temperature in each interval of dual-screw pelletizer is 170 degree to 270 degree, pressure is 1Mpa to 4.5Mpa, the master batch made has different specific refractions, allows the chemical polymerization thing of its different refractivity be uniformly dispersed, and makes LED point light source have many specific refractory poweres to launch uniform area source by this diffuser plate;
Extrusion moulding step, extrusion shaping machine is divided between intake zone by moulding process, melting interval, mixing interval, between discharge zone, the temperature in each interval of extrusion shaping machine is 170 degree to 270 degree, and pressure is 1Mpa to 4.5Mpa;
Eliminate stress step, and equipment heating installation after extrusion equipment, heats diffuser plate sheet material, eliminates the stress of diffuser plate sheet material;
Cutting step, cuts into the diffuser plate of economical size by diffuser plate sheet material;
Finished product.
In optimal technical scheme, prepare this material step, select 100 parts of PS plastic grains as this material by weight;
Make optics master batch step, optics master batch is mixed by the component of following two kinds of weight ratios and forms,
60 parts of these material choosing out from 100 parts of these material,
One in 40 parts of organosilicon microballoons, PMMA microsphere, MS microballoon or PP microballoons;
Drop into dual-screw pelletizer after uniform stirring mixing and manufacture optics master batch, make gross weight than the optics master batch being 100 parts;
Manufacture at dual-screw pelletizer in the process of optics master batch and at least add 0.001 ~ 0.05 part of lubrication dispersing agent.
In another optimal technical scheme, prepare this material step, select 100 parts of PS plastic grains as this material by weight;
Make optics master batch step, optics master batch is mixed by the component of following two kinds of weight ratios and forms,
80 parts of these material choosing out from 100 parts of these material,
One in 20 parts of organosilicon microballoons, PMMA microsphere, MS microballoon or PP microballoons;
Drop into dual-screw pelletizer after uniform stirring mixing and manufacture optics master batch, make gross weight than the optics master batch being 100 parts;
Manufacture at dual-screw pelletizer in the process of optics master batch and at least add 0.001 ~ 0.05 part of lubrication dispersing agent.
In another optimal technical scheme, prepare this material step, select 100 parts of PS plastic grains as this material by weight;
Make optics master batch step, optics master batch is mixed by the component of following two kinds of weight ratios and forms,
40 ~ 90 parts of these material choosing out from 100 parts of these material,
One in 10 ~ 60 parts of organosilicon microballoons, PMMA microsphere, MS microballoon, PP microballoon, PMMA plastic grain, PP plastic grain, PE plastic grain and MS plastic grains;
Drop into dual-screw pelletizer after uniform stirring mixing and manufacture optics master batch, make gross weight than the optics master batch being 100 parts;
Manufacture in the process of optics master batch the mixture adding in following component one or more at dual-screw pelletizer, the optics master batch made has several different specific refraction,
In another optimal technical scheme, prepare this material step, select 100 parts of PS plastic grains as this material by weight;
Make optics master batch step, optics master batch is mixed by the component of following two kinds of weight ratios and forms,
40 ~ 60 parts of these material choosing out from 100 parts of these material,
One in 40 ~ 60 parts of organosilicon microballoons, PMMA microsphere, MS microballoon, PP microballoon, PMMA plastic grain, PP plastic grain, PE plastic grain and MS plastic grains;
Drop into dual-screw pelletizer after uniform stirring mixing and manufacture optics master batch, make gross weight than the optics master batch being 100 parts.
In another optimal technical scheme, prepare this material step, select 100 parts of PS plastic grains as this material by weight;
Make optics master batch step, optics master batch is mixed by the component of following two kinds of weight ratios and forms,
61 ~ 90 parts of these material choosing out from 100 parts of these material,
One in 10 ~ 39 parts of organosilicon microballoons, PMMA microsphere, MS microballoon, PP microballoon, PMMA plastic grain, PP plastic grain, PE plastic grain and MS plastic grains;
Drop into dual-screw pelletizer after uniform stirring mixing and manufacture optics master batch, make gross weight than the optics master batch being 100 parts.
In another optimal technical scheme, prepare this material step, select 100 parts of PS plastic grains as this material by weight;
Make optics master batch step, optics master batch comprises two or more component mixing following by weight,
40 ~ 90 parts of these material choosing out from 100 parts of these material,
Two or more mixture in organosilicon microballoon, PMMA microsphere, MS microballoon, PP microballoon, PMMA plastic grain, PP plastic grain, PE plastic grain and MS plastic grain, gross weight ratio is 10 ~ 60 parts,
Drop into dual-screw pelletizer after uniform stirring mixing and manufacture optics master batch, make gross weight than the optics master batch being 100 parts.
In another optimal technical scheme, prepare this material step, select 100 parts of PS plastic grains as this material by weight;
Make optics master batch step, optics master batch is mixed by the component of following three kinds of weight ratios and forms,
60 parts of these material choosing out from 100 parts of these material,
One in 20 parts of PP plastic grains, PE plastic grain or MS plastic grains,
One in 20 parts of organosilicon microballoons, PMMA microsphere, MS microballoon or PP microballoons,
Drop into dual-screw pelletizer after uniform stirring mixing and manufacture optics master batch, make gross weight than the optics master batch being 100 parts;
Manufacture at dual-screw pelletizer in the process of optics master batch and at least add 0.001 ~ 0.05 part of lubrication dispersing agent.
After adopting said structure, the present invention is compared to the prior art advantageously: the present invention improves the production technique of the diffuser plate being used in straight-down negative display backlight source and LED flat lamp, changed the optical property of diffuser plate from diffuser plate inside by this technique, the chemical polymerization thing allowing its inside have different refractivity is uniformly dispersed, but not change from surface, present invention process is simple, easy to implement, production cost is low, and the diffuser plate produced has fabulous optical property.
Embodiment
The following stated is only preferred embodiment of the present invention, does not therefore limit protection scope of the present invention.
Embodiment one
The PS diffuser plate production method of display backlight source and LED flat lamp, comprises the following steps:
Prepare this material step, select PS plastic grain as this material;
Make optics master batch step, the component of optics master batch comprises by weight:
40 ~ 90 parts of these material choosing out from 100 parts of these material and 10 ~ 60 parts of light transmission plastics, light transmission plastics comprise the light transmission plastics that at least one light refractive index is different from the light refractive index of this material, wherein, the light transmission plastics making optics master batch comprise one or more mixture of organosilicon microballoon, PMMA microsphere, MS microballoon, PP microballoon, PMMA plastic grain, PP plastic grain, PE plastic grain and MS plastic grain;
Manufacturing optics master batch by dropping into dual-screw pelletizer after the mixing of the component uniform stirring of optics master batch, making gross weight than the optics master batch being 100 parts;
Dual-screw pelletizer is divided between intake zone by granulation process, melting interval, mixing interval, between discharge zone, the temperature in each interval of dual-screw pelletizer is 170 degree to 270 degree, pressure is 1Mpa to 4.5Mpa, the master batch made has different specific refractions, allow the chemical polymerization thing of its different refractivity be uniformly dispersed, and make LED point light source have many specific refractory poweres to launch uniform area source by this diffuser plate;
Manufacture in the process of optics master batch the mixture adding in following component one or more at dual-screw pelletizer, the optics master batch made has several different specific refraction,
Wherein, the gross weight manufacturing the said components, this material and the light transmission plastics that add in the process of optics master batch at dual-screw pelletizer is 100 parts; Or the gross weight of this material and light transmission plastics is 100 parts, manufacture the component of the above-mentioned weight ratio added in addition in the process of optics master batch at dual-screw pelletizer.
Extrusion moulding step, chooses 100 parts of these material by weight, chooses 1 ~ 10 part and makes the produced optics master batch of optics master batch step, put in extrusion shaping machine, mold diffuser plate sheet material by extrusion shaping machine after being uniformly mixed; Extrusion shaping machine is divided between intake zone by moulding process, melting interval, mixing interval, between discharge zone, the temperature in each interval of extrusion shaping machine is 170 degree to 270 degree, and pressure is 1Mpa to 4.5Mpa; Do not need to add lubrication dispersing agent, toughner, ultraviolet light absorption agent and fluorescent bleaches again, the adjustment of this processing step in extrusion moulding step, the transmittance of diffuser plate can be improved further.
Eliminate stress step, and equipment heating installation after extrusion equipment, heats diffuser plate sheet material, eliminates the stress of diffuser plate sheet material;
Cutting step, cuts into the diffuser plate of economical size by diffuser plate sheet material;
Finished product.
Embodiment two
Key step, the technique of the present embodiment are identical with embodiment one, repeat no more here, and its difference is selection and the corresponding proportion of component:
Prepare this material step, select 100 parts of PS plastic grains as this material by weight;
Make optics master batch step, optics master batch is mixed by the component of following two kinds of weight ratios and forms,
60 parts of these material choosing out from 100 parts of these material,
40 parts of organosilicon microballoons;
Drop into dual-screw pelletizer after uniform stirring mixing and manufacture optics master batch, make gross weight than the optics master batch being 100 parts;
Manufacture at dual-screw pelletizer in the process of optics master batch and at least add 0.001 ~ 0.05 part of lubrication dispersing agent.
Embodiment three
Key step, the technique of the present embodiment are identical with embodiment one, repeat no more here, and its difference is selection and the corresponding proportion of component:
Prepare this material step, select 100 parts of PS plastic grains as this material by weight;
Make optics master batch step, optics master batch is mixed by the component of following two kinds of weight ratios and forms,
60 parts of these material choosing out from 100 parts of these material,
40 parts of PMMA microsphere;
Drop into dual-screw pelletizer after uniform stirring mixing and manufacture optics master batch, make gross weight than the optics master batch being 100 parts;
Manufacture at dual-screw pelletizer in the process of optics master batch and at least add 0.001 ~ 0.05 part of lubrication dispersing agent.
Embodiment four
Key step, the technique of the present embodiment are identical with embodiment one, repeat no more here, and its difference is selection and the corresponding proportion of component:
Prepare this material step, select 100 parts of PS plastic grains as this material by weight;
Make optics master batch step, optics master batch is mixed by the component of following two kinds of weight ratios and forms,
60 parts of these material choosing out from 100 parts of these material,
40 parts of MS microballoons;
Drop into dual-screw pelletizer after uniform stirring mixing and manufacture optics master batch, make gross weight than the optics master batch being 100 parts;
Manufacture at dual-screw pelletizer in the process of optics master batch and at least add 0.001 ~ 0.05 part of lubrication dispersing agent.
Embodiment five
Key step, the technique of the present embodiment are identical with embodiment one, repeat no more here, and its difference is selection and the corresponding proportion of component:
Prepare this material step, select 100 parts of PS plastic grains as this material by weight;
Make optics master batch step, optics master batch is mixed by the component of following two kinds of weight ratios and forms,
60 parts of these material choosing out from 100 parts of these material,
One in 40 parts of PP microballoons;
Drop into dual-screw pelletizer after uniform stirring mixing and manufacture optics master batch, make gross weight than the optics master batch being 100 parts;
Manufacture at dual-screw pelletizer in the process of optics master batch and at least add 0.001 ~ 0.05 part of lubrication dispersing agent.
Embodiment six
Key step, the technique of the present embodiment are identical with embodiment one, repeat no more here, and its difference is selection and the corresponding proportion of component:
Prepare this material step, select 100 parts of PS plastic grains as this material by weight;
Make optics master batch step, optics master batch is mixed by the component of following two kinds of weight ratios and forms,
80 parts of these material choosing out from 100 parts of these material,
20 parts of organosilicon microballoons;
Drop into dual-screw pelletizer after uniform stirring mixing and manufacture optics master batch, make gross weight than the optics master batch being 100 parts;
Manufacture at dual-screw pelletizer in the process of optics master batch and at least add 0.001 ~ 0.05 part of lubrication dispersing agent.
Embodiment seven
Key step, the technique of the present embodiment are identical with embodiment one, repeat no more here, and its difference is selection and the corresponding proportion of component:
Prepare this material step, select 100 parts of PS plastic grains as this material by weight;
Make optics master batch step, optics master batch is mixed by the component of following two kinds of weight ratios and forms,
80 parts of these material choosing out from 100 parts of these material,
20 parts of PMMA microsphere;
Drop into dual-screw pelletizer after uniform stirring mixing and manufacture optics master batch, make gross weight than the optics master batch being 100 parts;
Manufacture at dual-screw pelletizer in the process of optics master batch and at least add 0.001 ~ 0.05 part of lubrication dispersing agent.
Embodiment eight
Key step, the technique of the present embodiment are identical with embodiment one, repeat no more here, and its difference is selection and the corresponding proportion of component:
Prepare this material step, select 100 parts of PS plastic grains as this material by weight;
Make optics master batch step, optics master batch is mixed by the component of following two kinds of weight ratios and forms,
60 parts of these material choosing out from 100 parts of these material,
40 parts of PMMA plastic grains;
Drop into dual-screw pelletizer after uniform stirring mixing and manufacture optics master batch, make gross weight than the optics master batch being 100 parts;
Manufacture at dual-screw pelletizer in the process of optics master batch and at least add 0.001 ~ 0.05 part of lubrication dispersing agent and 0.001 ~ 0.05 part of toughner.
Embodiment nine
Key step, the technique of the present embodiment are identical with embodiment one, repeat no more here, and its difference is selection and the corresponding proportion of component:
Prepare this material step, select 100 parts of PS plastic grains as this material by weight;
Make optics master batch step, optics master batch is mixed by the component of following two kinds of weight ratios and forms,
60 parts of these material choosing out from 100 parts of these material,
40 parts of PP plastic grains;
Drop into dual-screw pelletizer after uniform stirring mixing and manufacture optics master batch, make gross weight than the optics master batch being 100 parts;
Manufacture at dual-screw pelletizer in the process of optics master batch and at least add 0.001 ~ 0.05 part of lubrication dispersing agent and 0.001 ~ 0.05 part of toughner.
Embodiment ten
Key step, the technique of the present embodiment are identical with embodiment one, repeat no more here, and its difference is selection and the corresponding proportion of component:
Prepare this material step, select 100 parts of PS plastic grains as this material by weight;
Make optics master batch step, optics master batch is mixed by the component of following two kinds of weight ratios and forms,
80 parts of these material choosing out from 100 parts of these material,
One in 20 parts of machine MS microballoons or PP microballoon;
Drop into dual-screw pelletizer after uniform stirring mixing and manufacture optics master batch, make gross weight than the optics master batch being 100 parts;
Manufacture at dual-screw pelletizer in the process of optics master batch and at least add 0.001 ~ 0.05 part of lubrication dispersing agent.
Embodiment 11
Key step, the technique of the present embodiment are identical with embodiment one, repeat no more here, and its difference is selection and the corresponding proportion of component:
Prepare this material step, select 100 parts of PS plastic grains as this material by weight;
Make optics master batch step, optics master batch is mixed by the component of following two kinds of weight ratios and forms,
40 ~ 90 parts of these material choosing out from 100 parts of these material,
One in 10 ~ 60 parts of organosilicon microballoons, PMMA microsphere, MS microballoon, PP microballoon, PMMA plastic grain, PP plastic grain, PE plastic grain and MS plastic grains;
Drop into dual-screw pelletizer after uniform stirring mixing and manufacture optics master batch, make gross weight than the optics master batch being 100 parts;
Manufacture in the process of optics master batch the mixture adding in following component one or more at dual-screw pelletizer, the optics master batch made has several different specific refraction,
Embodiment 12
Key step, the technique of the present embodiment are identical with embodiment one, repeat no more here, and its difference is selection and the corresponding proportion of component:
Prepare this material step, select 100 parts of PS plastic grains as this material by weight;
Make optics master batch step, optics master batch is mixed by the component of following two kinds of weight ratios and forms,
40 ~ 60 parts of these material choosing out from 100 parts of these material,
One in 40 ~ 60 parts of organosilicon microballoons, PMMA microsphere, MS microballoon, PP microballoon, PMMA plastic grain, PP plastic grain, PE plastic grain and MS plastic grains;
Drop into dual-screw pelletizer after uniform stirring mixing and manufacture optics master batch, make gross weight than the optics master batch being 100 parts.
Embodiment 13
Key step, the technique of the present embodiment are identical with embodiment one, repeat no more here, and its difference is selection and the corresponding proportion of component:
Prepare this material step, select 100 parts of PS plastic grains as this material by weight;
Make optics master batch step, optics master batch is mixed by the component of following two kinds of weight ratios and forms,
61 ~ 90 parts of these material choosing out from 100 parts of these material,
One in 10 ~ 39 parts of organosilicon microballoons, PMMA microsphere, MS microballoon, PP microballoon, PMMA plastic grain, PP plastic grain, PE plastic grain and MS plastic grains;
Drop into dual-screw pelletizer after uniform stirring mixing and manufacture optics master batch, make gross weight than the optics master batch being 100 parts.
Embodiment 14
Key step, the technique of the present embodiment are identical with embodiment one, repeat no more here, and its difference is selection and the corresponding proportion of component:
Prepare this material step, select 100 parts of PS plastic grains as this material by weight;
Make optics master batch step, optics master batch comprises two or more component mixing following by weight,
40 ~ 90 parts of these material choosing out from 100 parts of these material,
Organosilicon microballoon, PMMA microsphere, MS microballoon, PP microballoon, in two or more mixture, gross weight ratio is 10 ~ 60 parts,
The optics master batch that dual-screw pelletizer causes 100 parts is dropped into after uniform stirring mixing,
Manufacture at dual-screw pelletizer in the process of optics master batch and at least add 0.001 ~ 0.05 part of lubrication dispersing agent.
Embodiment 15
Key step, the technique of the present embodiment are identical with embodiment one, repeat no more here, and its difference is selection and the corresponding proportion of component:
Prepare this material step, select 100 parts of PS plastic grains as this material by weight;
Make optics master batch step, optics master batch comprises two or more component mixing following by weight,
40 ~ 90 parts of these material choosing out from 100 parts of these material,
Two or more mixture in PMMA plastic grain, PP plastic grain, PE plastic grain and MS plastic grain, gross weight ratio is 10 ~ 60 parts,
The optics master batch that dual-screw pelletizer causes 100 parts is dropped into after uniform stirring mixing,
Manufacture at dual-screw pelletizer in the process of optics master batch and at least add 0.001 ~ 0.05 part of toughner, 0.0001 ~ 0.005 part of fluorescent bleaches and 0.001 ~ 0.05 part of lubrication dispersing agent.
Embodiment 16
Key step, the technique of the present embodiment are identical with embodiment one, repeat no more here, and its difference is selection and the corresponding proportion of component:
Prepare this material step, select 100 parts of PS plastic grains as this material by weight;
Make optics master batch step, optics master batch is mixed by the component of following three kinds of weight ratios and forms,
60 parts of these material choosing out from 100 parts of these material,
20 parts of PP plastic grains,
20 parts of organosilicon microballoons,
The optics master batch that dual-screw pelletizer causes 100 parts is dropped into after uniform stirring mixing,
Manufacture at dual-screw pelletizer in the process of optics master batch and at least add 0.001 ~ 0.05 part of lubrication dispersing agent.
Embodiment 17
Key step, the technique of the present embodiment are identical with embodiment one, repeat no more here, and its difference is selection and the corresponding proportion of component:
Prepare this material step, select 100 parts of PS plastic grains as this material by weight;
Make optics master batch step, optics master batch is mixed by the component of following three kinds of weight ratios and forms,
60 parts of these material choosing out from 100 parts of these material,
20 parts of PP plastic grains,
20 parts have PMMA microsphere,
The optics master batch that dual-screw pelletizer causes 100 parts is dropped into after uniform stirring mixing,
Manufacture at dual-screw pelletizer in the process of optics master batch and at least add 0.001 ~ 0.05 part of lubrication dispersing agent.
Embodiment 18
Key step, the technique of the present embodiment are identical with embodiment one, repeat no more here, and its difference is selection and the corresponding proportion of component:
Prepare this material step, select 100 parts of PS plastic grains as this material by weight;
Make optics master batch step, optics master batch is mixed by the component of following three kinds of weight ratios and forms,
60 parts of these material choosing out from 100 parts of these material,
20 parts of PP plastic grains,
20 parts of MS microballoons or PP microballoon,
The optics master batch that dual-screw pelletizer causes 100 parts is dropped into after uniform stirring mixing,
Manufacture at dual-screw pelletizer in the process of optics master batch and at least add 0.001 ~ 0.05 part of lubrication dispersing agent.
Embodiment 19
Key step, the technique of the present embodiment are identical with embodiment one, repeat no more here, and its difference is selection and the corresponding proportion of component:
Prepare this material step, select 100 parts of PS plastic grains as this material by weight;
Make optics master batch step, optics master batch is mixed by the component of following three kinds of weight ratios and forms,
60 parts of these material choosing out from 100 parts of these material,
20 parts of PE plastic grains or MS plastic grain,
One in 20 parts of organosilicon microballoons, PMMA microsphere, MS microballoon or PP microballoons,
The optics master batch that dual-screw pelletizer causes 100 parts is dropped into after uniform stirring mixing,
Manufacture at dual-screw pelletizer in the process of optics master batch and at least add 0.001 ~ 0.05 part of lubrication dispersing agent.
Above content is only preferred embodiment of the present invention, and for those of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, this description should not be construed as limitation of the present invention.
Claims (4)
1. the PS diffuser plate production method of display backlight source and LED flat lamp, is characterized in that: comprise the following steps:
Prepare this material step, select 100 parts of PS plastic grains as this material by weight;
Make optics master batch step, the component of optics master batch comprises by weight: 40 ~ 90 parts of these material choosing out from 100 parts of these material and 10 ~ 60 parts of light transmission plastics, and light transmission plastics comprise the light transmission plastics that at least one light refractive index is different from the light refractive index of this material; Optics master batch is manufactured by dropping into dual-screw pelletizer after the mixing of the component uniform stirring of optics master batch, make gross weight than the optics master batch being 100 parts, described light transmission plastics comprise one or more mixture of organosilicon microballoon, PMMA microsphere, PP microballoon, PMMA plastic grain, PP plastic grain or PE plastic grain;
Manufacture at dual-screw pelletizer in the process of optics master batch and add 0.001-0.05 part lubrication dispersing agent,
Wherein, dual-screw pelletizer is divided between intake zone, between melting zone by granulation process, mixing interval, between discharge zone, the temperature in each interval of dual-screw pelletizer is 170 degree to 270 degree, pressure is 1MPa to 4.5MPa, the master batch made has different specific refractions, allow the chemical polymerization thing of its different refractivity be uniformly dispersed, and make LED point light source have many specific refractory poweres to launch uniform area source by this diffuser plate;
Extrusion moulding step, chooses 100 parts of these material by weight, chooses 1 ~ 10 part and makes the produced optics master batch of optics master batch step, put in extrusion shaping machine, mold diffuser plate sheet material by extrusion shaping machine after being uniformly mixed; Wherein, extrusion shaping machine is divided between intake zone, between melting zone by moulding process, mixing interval, between discharge zone, the temperature in each interval of extrusion shaping machine is 170 degree to 270 degree, and pressure is 1MPa to 4.5MPa;
Eliminate stress step, and equipment heating installation after extrusion equipment, heats diffuser plate sheet material, eliminates the stress of diffuser plate sheet material;
Cutting step, cuts into the diffuser plate of economical size by diffuser plate sheet material;
Finished product.
2. the PS diffuser plate production method of display backlight source according to claim 1 and LED flat lamp, is characterized in that:
Prepare this material step, select 100 parts of PS plastic grains as this material by weight;
Make optics master batch step, optics master batch is mixed by the component of following two kinds of weight ratios and forms,
60 parts of these material choosing out from 100 parts of these material,
One in 40 parts of organosilicon microballoons, PMMA microsphere or PP microballoons;
Drop into dual-screw pelletizer after uniform stirring mixing and manufacture optics master batch, make gross weight than the optics master batch being 100 parts;
Manufacture at dual-screw pelletizer in the process of optics master batch and at least add 0.001 ~ 0.05 part of lubrication dispersing agent.
3. the PS diffuser plate production method of display backlight source according to claim 1 and LED flat lamp, is characterized in that:
Prepare this material step, select 100 parts of PS plastic grains as this material by weight;
Make optics master batch step, optics master batch is mixed by the component of following two kinds of weight ratios and forms,
80 parts of these material choosing out from 100 parts of these material,
One in 20 parts of organosilicon microballoons, PMMA microsphere or PP microballoons;
Drop into dual-screw pelletizer after uniform stirring mixing and manufacture optics master batch, make gross weight than the optics master batch being 100 parts;
Manufacture at dual-screw pelletizer in the process of optics master batch and at least add 0.001 ~ 0.05 part of lubrication dispersing agent.
4. the PS diffuser plate production method of display backlight source according to claim 1 and LED flat lamp, is characterized in that:
Prepare this material step, select 100 parts of PS plastic grains as this material by weight;
Make optics master batch step, optics master batch is mixed by the component of following three kinds of weight ratios and forms,
60 parts of these material choosing out from 100 parts of these material,
One in 20 parts of PP plastic grains or PE plastic grain,
One in 20 parts of organosilicon microballoons, PMMA microsphere or PP microballoons,
Drop into dual-screw pelletizer after uniform stirring mixing and manufacture optics master batch, make gross weight than the optics master batch being 100 parts;
Manufacture at dual-screw pelletizer in the process of optics master batch and at least add 0.001 ~ 0.05 part of lubrication dispersing agent.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410217684.0A CN103965559B (en) | 2014-05-22 | 2014-05-22 | Production method of PS (Polystyrene) diffusion plates of backlight source of display screen and LED (Light-Emitting Diode) panel light |
| PCT/CN2015/079160 WO2015176629A1 (en) | 2014-05-22 | 2015-05-18 | Method for producing ps diffusion plate for display screen backlight source and led panel light |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410217684.0A CN103965559B (en) | 2014-05-22 | 2014-05-22 | Production method of PS (Polystyrene) diffusion plates of backlight source of display screen and LED (Light-Emitting Diode) panel light |
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| Publication Number | Publication Date |
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| CN103965559A CN103965559A (en) | 2014-08-06 |
| CN103965559B true CN103965559B (en) | 2015-05-20 |
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| CN103965559B (en) * | 2014-05-22 | 2015-05-20 | 东莞市鑫聚光电科技有限公司 | Production method of PS (Polystyrene) diffusion plates of backlight source of display screen and LED (Light-Emitting Diode) panel light |
| CN104610677A (en) * | 2015-02-04 | 2015-05-13 | 李满林 | Production method of PS diffusion plate and PS diffusion plate |
| 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 |
| CN105820441A (en) * | 2016-05-17 | 2016-08-03 | 东莞市鑫聚光电科技股份有限公司 | High-gamut light diffuser and production process thereof |
| CN108638618A (en) * | 2018-04-16 | 2018-10-12 | 江苏恒隆通新材料科技有限公司 | A kind of expansion type diffuser plate and preparation method thereof |
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| JP3669299B2 (en) * | 2001-07-12 | 2005-07-06 | 住友化学株式会社 | Methyl methacrylate resin composition and molded article thereof |
| CN1704813A (en) * | 2004-05-31 | 2005-12-07 | 颖台科技股份有限公司 | Diffuser of direct type backlight module and method for making same |
| JP2009063998A (en) * | 2007-08-09 | 2009-03-26 | Sumitomo Chemical Co Ltd | Light diffuser plate |
| KR101159538B1 (en) * | 2009-06-17 | 2012-06-25 | 케이와 인코포레이티드 | Semi-transparent reflective sheet and backlight unit using the same |
| CN102786690B (en) * | 2012-06-13 | 2014-05-07 | 华南理工大学 | Light scattering microsphere containing benzoate polysilsesquioxane, and preparation method and application thereof |
| CN103965559B (en) * | 2014-05-22 | 2015-05-20 | 东莞市鑫聚光电科技有限公司 | Production method of PS (Polystyrene) diffusion plates of backlight source of display screen and LED (Light-Emitting Diode) panel light |
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| CN103965559A (en) | 2014-08-06 |
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Address after: Tangxia Town, Guangdong city of Dongguan province 523000 Qing Lake Phoenix Road No. 98 Patentee after: DONGGUAN XINJU OPTOELECTRONICS TECHNOLOGY CO., LTD. Address before: Tangxia Town, Guangdong city of Dongguan province 523000 Qing Lake Phoenix Road No. 98 Patentee before: Dongguan Xinju Optical-Electrical Technology Co., Ltd. |
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