CN109031509A - A kind of composite co-extruding plate and preparation method thereof with leaded light and diffusion function - Google Patents
A kind of composite co-extruding plate and preparation method thereof with leaded light and diffusion function Download PDFInfo
- Publication number
- CN109031509A CN109031509A CN201810953170.XA CN201810953170A CN109031509A CN 109031509 A CN109031509 A CN 109031509A CN 201810953170 A CN201810953170 A CN 201810953170A CN 109031509 A CN109031509 A CN 109031509A
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- Prior art keywords
- pmma
- guide
- light
- lighting
- diffusion
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
- G02B6/0051—Diffusing sheet or layer
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/02—Diffusing elements; Afocal elements
- G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
- G02B5/021—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures
- G02B5/0226—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures having particles on the surface
Abstract
The invention discloses a kind of with guide-lighting and diffusion function composite co-extruding plate and preparation method thereof, it is related to technical field of LED illumination.This has guide-lighting and diffusion function composite co-extruding plate, including PMMA optical waveguide layer and PMMA diffusion layer, and the composite co-extruding plate with guide-lighting and diffusion function is made of co-extrusion plate squeezing technique for the PMMA optical waveguide layer and PMMA diffusion layer.The invention also discloses the above-mentioned preparation methods with guide-lighting and diffusion function composite co-extruding plate.The present invention proposes a kind of structure that LED light area source light guide plate and diffuser plate are combined with each other, using co-extrusion plate squeezing technique, the PMMA plate co-extrusion with diffusion function PMMA plate and with light-guiding function added with light diffusing agent is squeezed out, make compound board finished product while there is guide-lighting and light diffusion function, to reduce LED area light source component, assembling procedure is reduced, production and processing efficiency is promoted, reduces LED area light source cost.
Description
Technical field
The present invention relates to technical field of LED illumination, and in particular to a kind of with guide-lighting and diffusion function composite co-extruding plate
And preparation method thereof.
Background technique
LED illumination area source has obtained popularization and use energetically, has represent photograph as a kind of novel energy-conserving light source
Following developing direction of bright lamp tool.But due to the photocurrent versus light intensity of LED light inherently, there is dazzling and irradiating angle limitations etc.
Problem.To obtain uniform, not dazzling illumination surface light source, daily LED area light source is used to be solved with flowering structure:
1. existing LED area light source structure is from top to bottom successively are as follows: diffuser plate, light guide plate, LED light bar and aluminum alloy frame,
Reflectance coating；
2. light is exported after coming out from LED lamp bead by light guide plate, pit micro-structure and reflectance coating at light guide plate back
Under collective effect, light is made uniformly to be upwardly into diffuser plate；
3. reflectance coating reflects light downward derived from light guide plate, changes its opticpath, irradiates it upwards,
Increase light source utilization rate；
4. diffuser plate is that light diffusing agent is added in transparent plastic sheet [PMMA (polymethyl methacrylate), PC etc.)],
Effect is further to spread upward light, makes the more uniform distribution of light；
But between existing LED area light source structure diffuser plate and light guide plate it is, need Nian Jie by double faced adhesive tape or adhesive
Wanting assembly crewman to carry out sequence of operations, the complex process such as gluing, contraposition, assembly influences working efficiency；And diffuser plate with lead
Because there are adhesive layers will affect light by efficiency between tabula rasa, so that LED light light utilization ratio be caused to decline.
Summary of the invention
In view of the shortcomings of the prior art, the present invention provides a kind of composite co-extruding plate with leaded light and diffusion function
And preparation method thereof.
To achieve the goals above, the present invention is to realize by the following technical solutions:
A kind of composite co-extruding plate with leaded light and diffusion function, including PMMA optical waveguide layer and PMMA diffusion layer, it is described
The transparent thin board that PMMA optical waveguide layer is squeezed out by PMMA raw material by extrusion process, the PMMA diffusion layer is by following components according to matter
It measures percentage to constitute: polymethyl methacrylate 86%~98.59%, light diffusing agent 0.01%~7%, heat stabilizer 0.1%
~1.5%, light stabilizer 0.1%~1.5%, processing aid 0.1%~1.5%, the PMMA diffusion layer is by PMMA raw material
After particle and light diffusing agent, heat stabilizer, light stabilizer and processing aid are mixed according to the above mentioned proportion uniformly, by squeezing out work
The milky thin plate that skill squeezes out；The PMMA optical waveguide layer and PMMA diffusion layer are made using co-extrusion plate squeezing technique with guide-lighting and expansion
Dissipate the composite co-extruding plate of function.
Preferably, the PMMA optical waveguide layer is with a thickness of 2.0-3.0mm.
Preferably, the PMMA diffusion layer with a thickness of 1.0-2.0mm.
Preferably, the light diffusing agent is organic nano microballon light diffusing agent；Such light diffusing agent material itself is can be with
Light transmission, it can be very good to solve the problems, such as that even light and light transmission, light loss are few；By addition light diffusing agent obtain light transmittance,
The PMMA diffusion layer of mist degree and angle of flare balance, so that LED area light source issues not dazzling, soft uniform light.
Preferably, the heat stabilizer is one of dibutyl tin laurate, thiol methyl tin, cadmium stearate or several
Kind.
Preferably, the light stabilizer is one of benzotriazole, triazines, O-hydroxyl-diphenyl ketone class or several
Kind.
Preferably, the processing aid is one or more of phthalic acid ester, aliphatic dicarboxylic acid ester, phosphate.
A kind of heretofore described preparation method with guide-lighting and diffusion function composite co-extruding plate, including following step
It is rapid:
(1) each component of PMMA diffusion layer is uniformly mixed first according to the above ratio, mixture is then put into one
Extruder heating and melting；PMMA raw particles heating and melting needed for being put into PMMA optical waveguide layer in another extruder；
(2) co-extrusion mouth mold, the PMMA diffusion layer that then will melt are set between the two extruders in step (1)
It is squeezed out together with PMMA optical waveguide layer by co-extrusion mouth mold, then cooling and shaping is carried out to sheet material by chill roll, so that being made has
Guide-lighting and diffusion function composite co-extruding plate；
(3) above-mentioned extruder heating temperature is 210 DEG C~230 DEG C, and chill-roll temperature is 25 DEG C~35 DEG C, is entirely produced
Strict temperature control in journey, to ensure that PMMA diffusion layer and PMMA optical waveguide layer are tightly combined.
Compared to the prior art, the beneficial effects of the present invention are:
The present invention proposes a kind of structure that LED light area source light guide plate and diffuser plate are combined with each other, and is squeezed using co-extrusion
The PMMA plate co-extrusion with diffusion function PMMA plate and with light-guiding function added with light diffusing agent is squeezed out, is made by plate technique
Compound board finished product has guide-lighting and light diffusion function simultaneously, to reduce LED area light source component, reduces assembling procedure, promotes life
Processing efficiency is produced, LED area light source cost is reduced.
Detailed description of the invention
The following describes the present invention in detail with reference to the accompanying drawings and specific embodiments:
Fig. 1 is LED area light source structural decomposition diagram in the prior art；
Fig. 2 is LED area light source structure sectional view in the prior art；
Fig. 3 is to have guide-lighting and diffusion function composite co-extruding plate structure sectional view in the present invention.
Description of symbols: 1- diffuser plate；2- light guide plate；201- light guide plate back pit micro-structure；3-LED lamp bar；4-
Reflectance coating；5-PMMA diffusion layer；6-PMMA optical waveguide layer.
Specific embodiment
To be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, below with reference to
Specific embodiment, the present invention is further explained.
As shown in figure 3, it illustrates a kind of composite co-extruding plate with leaded light and diffusion function of the invention, including PMMA
Optical waveguide layer 6 and PMMA diffusion layer 5, the transparent thin board that PMMA optical waveguide layer 6 is squeezed out by PMMA raw material by extrusion process, PMMA are guide-lighting
Layer 6 is with a thickness of 2.0-3.0mm, and PMMA diffusion layer 5 is made of following components according to mass percent: polymethyl methacrylate
86%~98.59%, light diffusing agent 0.01%~7%, heat stabilizer 0.1%~1.5%, light stabilizer 0.1%~1.5%,
Processing aid 0.1%~1.5%, PMMA diffusion layer 5 are by PMMA raw particles and light diffusing agent, heat stabilizer, light stabilizer
After being mixed according to the above mentioned proportion uniformly with processing aid, the milky thin plate squeezed out by extrusion process, PMMA diffusion layer 5
With a thickness of 1.0-2.0mm；The PMMA optical waveguide layer 6 is made using co-extrusion plate squeezing technique with guide-lighting and expansion with PMMA diffusion layer 5
Dissipate the composite co-extruding plate of function.
Wherein, light diffusing agent is organic nano microballon light diffusing agent；Such light diffusing agent material itself can with light transmission,
It can be very good to solve the problems, such as that even light and light transmission, light loss are few；Light transmittance, mist degree and expansion are obtained by addition light diffusing agent
The PMMA diffusion layer of angle balance is dissipated, so that LED area light source issues not dazzling, soft uniform light.
Preferably, heat stabilizer is one or more of dibutyl tin laurate, thiol methyl tin, cadmium stearate；Light
Stabilizer is one or more of benzotriazole, triazines, O-hydroxyl-diphenyl ketone class；Processing aid is phthalic acid
One or more of ester, aliphatic dicarboxylic acid ester, phosphate.
The above-mentioned preparation method with guide-lighting and diffusion function composite co-extruding plate, comprising the following steps:
(1) each component of PMMA diffusion layer 5 is uniformly mixed first according to the above ratio, mixture is then put into one
Extruder heating and melting；PMMA raw particles heating and melting needed for being put into PMMA optical waveguide layer 6 in another extruder；
(2) co-extrusion mouth mold, the PMMA diffusion layer that then will melt are set between the two extruders in step (1)
5 and PMMA optical waveguide layer 6 is squeezed out together by co-extrusion mouth mold, then carries out cooling and shaping to sheet material by chill roll, so that tool be made
There is guide-lighting and diffusion function composite co-extruding plate；
(3) above-mentioned extruder heating temperature is 210 DEG C~230 DEG C, and chill-roll temperature is 25 DEG C~35 DEG C, is entirely produced
Strict temperature control in journey, to ensure that PMMA diffusion layer 5 and PMMA optical waveguide layer 6 are tightly combined.
The present invention proposes a kind of structure that LED light area source light guide plate and diffuser plate are combined with each other, and is squeezed using co-extrusion
The PMMA plate co-extrusion with diffusion function PMMA plate and with light-guiding function added with light diffusing agent is squeezed out, is made by plate technique
Compound board finished product has guide-lighting and light diffusion function simultaneously, to reduce LED area light source component, reduces assembling procedure, promotes life
Processing efficiency is produced, LED area light source cost is reduced.
The above is only a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
Those of ordinary skill for, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (8)
1. a kind of with guide-lighting and diffusion function composite co-extruding plate, it is characterised in that: spread including PMMA optical waveguide layer and PMMA
Layer, the transparent thin board that the PMMA optical waveguide layer is squeezed out by PMMA raw material by extrusion process, the PMMA diffusion layer is by with the following group
Divide and constituted according to mass percent: polymethyl methacrylate 86%~98.59%, light diffusing agent 0.01%~7%, thermostabilization
Agent 0.1%~1.5%, light stabilizer 0.1%~1.5%, processing aid 0.1%~1.5%, the PMMA diffusion layer be by
After PMMA raw particles and light diffusing agent, heat stabilizer, light stabilizer and processing aid are mixed according to the above mentioned proportion uniformly, lead to
Cross the milky thin plate of extrusion process extrusion；The PMMA optical waveguide layer, which is made with PMMA diffusion layer of co-extrusion plate squeezing technique, to be had
Guide-lighting and diffusion function composite co-extruding plate；The side that there is guide-lighting and diffusion function composite co-extruding plate to include the following steps
Method is made:
(1) each component of PMMA diffusion layer is uniformly mixed first according to the above ratio, mixture is then put into an extrusion
Machine heating and melting；PMMA raw particles heating and melting needed for being put into PMMA optical waveguide layer in another extruder；
(2) co-extrusion mouth mold is set between the two extruders in step (1), then by the PMMA diffusion layer melted and
PMMA optical waveguide layer is squeezed out together by co-extrusion mouth mold, then carries out cooling and shaping to sheet material by chill roll, is led to be made and have
The composite co-extruding plate of light and diffusion function；
(3) above-mentioned extruder heating temperature is 210 DEG C~230 DEG C, and chill-roll temperature is 25 DEG C~35 DEG C, in entire production process
Strict temperature control, to ensure that PMMA diffusion layer and PMMA optical waveguide layer are tightly combined.
2. according to claim 1 have guide-lighting and diffusion function composite co-extruding plate, it is characterised in that: the PMMA is led
Photosphere is with a thickness of 2.0-3.0mm.
3. according to claim 1 have guide-lighting and diffusion function composite co-extruding plate, it is characterised in that: the PMMA expands
Dissipate layer with a thickness of 1.0-2.0mm.
4. according to claim 1 have guide-lighting and diffusion function composite co-extruding plate, it is characterised in that: the light diffusion
Agent is organic nano microballon light diffusing agent.
5. according to claim 1 have guide-lighting and diffusion function composite co-extruding plate, it is characterised in that: the thermostabilization
Agent is one or more of dibutyl tin laurate, thiol methyl tin, cadmium stearate.
6. according to claim 1 have guide-lighting and diffusion function composite co-extruding plate, it is characterised in that: the light is stablized
Agent is one or more of benzotriazole, triazines, O-hydroxyl-diphenyl ketone class.
7. according to claim 1 have guide-lighting and diffusion function composite co-extruding plate, it is characterised in that: the processing helps
Agent is one or more of phthalic acid ester, aliphatic dicarboxylic acid ester, phosphate.
8. a kind of preparation with guide-lighting and diffusion function composite co-extruding plate according to any one of claims 1 to 7
Method, which comprises the following steps:
(1) each component of PMMA diffusion layer is uniformly mixed first according to the above ratio, mixture is then put into an extrusion
Machine heating and melting；PMMA raw particles heating and melting needed for being put into PMMA optical waveguide layer in another extruder；
(2) co-extrusion mouth mold is set between the two extruders in step (1), then by the PMMA diffusion layer melted and
PMMA optical waveguide layer is squeezed out together by co-extrusion mouth mold, then carries out cooling and shaping to sheet material by chill roll, is led to be made and have
The composite co-extruding plate of light and diffusion function；
(3) above-mentioned extruder heating temperature is 210 DEG C~230 DEG C, and chill-roll temperature is 25 DEG C~35 DEG C, in entire production process
Strict temperature control, to ensure that PMMA diffusion layer and PMMA optical waveguide layer are tightly combined.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810953170.XA CN109031509A (en) | 2018-08-21 | 2018-08-21 | A kind of composite co-extruding plate and preparation method thereof with leaded light and diffusion function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810953170.XA CN109031509A (en) | 2018-08-21 | 2018-08-21 | A kind of composite co-extruding plate and preparation method thereof with leaded light and diffusion function |
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| CN109031509A true CN109031509A (en) | 2018-12-18 |
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| CN201810953170.XA Pending CN109031509A (en) | 2018-08-21 | 2018-08-21 | A kind of composite co-extruding plate and preparation method thereof with leaded light and diffusion function |
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Cited By (2)
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| CN115534473A (en) * | 2022-10-28 | 2022-12-30 | 江西盛汇光学科技协同创新有限公司 | Composite multilayer optical film and preparation method and application thereof |
| CN115895007A (en) * | 2022-12-17 | 2023-04-04 | 常熟卓辉光电科技股份有限公司 | Novel light guide plate and manufacturing method thereof |
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| CN115534473A (en) * | 2022-10-28 | 2022-12-30 | 江西盛汇光学科技协同创新有限公司 | Composite multilayer optical film and preparation method and application thereof |
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