CN112063143A - Light diffusion material for increasing light emitting angle of lampshade and processing method thereof - Google Patents
Light diffusion material for increasing light emitting angle of lampshade and processing method thereof Download PDFInfo
- Publication number
- CN112063143A CN112063143A CN201910500324.4A CN201910500324A CN112063143A CN 112063143 A CN112063143 A CN 112063143A CN 201910500324 A CN201910500324 A CN 201910500324A CN 112063143 A CN112063143 A CN 112063143A
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- CN
- China
- Prior art keywords
- light
- lampshade
- increasing
- emitting angle
- polycarbonate
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- Pending
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- 239000000463 material Substances 0.000 title claims abstract description 16
- 238000009792 diffusion process Methods 0.000 title claims abstract description 12
- 238000003672 processing method Methods 0.000 title description 6
- 239000004417 polycarbonate Substances 0.000 claims abstract description 29
- 229920000515 polycarbonate Polymers 0.000 claims abstract description 20
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000012745 toughening agent Substances 0.000 claims abstract description 17
- 230000002745 absorbent Effects 0.000 claims abstract description 14
- 239000002250 absorbent Substances 0.000 claims abstract description 14
- 238000003756 stirring Methods 0.000 claims description 9
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 238000001125 extrusion Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 239000000049 pigment Substances 0.000 claims description 4
- 229920003225 polyurethane elastomer Polymers 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000005469 granulation Methods 0.000 claims description 2
- 230000003179 granulation Effects 0.000 claims description 2
- 229920001296 polysiloxane Polymers 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 2
- ABDBNWQRPYOPDF-UHFFFAOYSA-N carbonofluoridic acid Chemical compound OC(F)=O ABDBNWQRPYOPDF-UHFFFAOYSA-N 0.000 claims 1
- 230000000694 effects Effects 0.000 description 6
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 125000001153 fluoro group Chemical group F* 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L69/00—Compositions of polycarbonates; Compositions of derivatives of polycarbonates
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V3/00—Globes; Bowls; Cover glasses
- F21V3/04—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings
- F21V3/06—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material
- F21V3/062—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material the material being plastics
- F21V3/0625—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material the material being plastics the material diffusing light, e.g. translucent plastics
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a light diffusion material for increasing the light emitting angle of a lampshade, which comprises 80-95% of polycarbonate; 3% -16% of a toughening agent; 0.6 percent of light diffusant; 0.4% of ultraviolet absorbent; 1% -3% of siloxane. According to the invention, a proper amount of siloxane is added into polycarbonate, so that the light-emitting angle is increased, and the trouble of uneven light caused by directly using a PC lampshade in the past is avoided.
Description
Technical Field
The invention belongs to the technical field of processing of high polymer compositions, and particularly relates to a light diffusion material for increasing the light emitting angle of a lampshade and a processing method thereof.
Background
The lampshade of the traditional energy-saving lamp is made of PC, and the PC is colorless and transparent, heat-resistant, impact-resistant and flame-retardant at BI level, and has good mechanical properties at common use temperature. In the current production process, in order to increase the light emitting angle and soften the light of the bulb, a fluorescent powder coating is generally required to be coated on the surface of the lampshade, so that the production efficiency is greatly reduced, and the cost is increased. Therefore, a lampshade made of a novel PC material is needed at present, and the lampshade has a larger light-emitting angle, so that light can be distributed more uniformly and softly.
Disclosure of Invention
In view of the above, the technical problem to be solved by the present invention is to provide a light diffusion material for increasing the light emitting angle of a lampshade and a processing method thereof, wherein the light emitting angle is increased by adding a proper amount of siloxane into polycarbonate, thereby avoiding the trouble of uneven light generated by directly using a PC lampshade in the past.
In order to solve the technical problem, the invention discloses a light diffusion material for increasing the light emitting angle of a lampshade, which comprises 80-95% of polycarbonate; 3% -16% of a toughening agent; 0.6 percent of light diffusant; 0.4% of ultraviolet absorbent; 1% -3% of siloxane.
According to an embodiment of the present invention, the light diffusing agent is selected from silicones.
According to an embodiment of the present invention, the toughening agent is selected from a fluorine-containing carbonate polyurethane elastomer.
A processing method of a light diffusion material for increasing the light emitting angle of a lampshade comprises the following steps:
step a, providing dried polycarbonate, feeding the dried polycarbonate into a high-speed stirrer, stirring and crushing, adding a toughening agent, a light diffusing agent and an ultraviolet absorbent simultaneously, and slowly adding siloxane after stirring for 20 min;
and b, after fully stirring for 40-60 min, putting the mixture into a double-screw extruder for extrusion granulation, wherein the extrusion temperature is 300-380 ℃, and the screw rotation speed is 120-180 r/min.
And c, directly granulating the extrudate after the extrudate is cooled by water.
According to an embodiment of the present invention, 2% to 8% of pigment can be added in the step a.
Compared with the prior art, the invention can obtain the following technical effects:
by adding a proper amount of siloxane into the polycarbonate, the light-emitting angle is increased, and the trouble of uneven light generated by directly using a PC lampshade in the prior art is avoided.
Of course, it is not necessary for any one product in which the invention is practiced to achieve all of the above-described technical effects simultaneously.
Detailed Description
The following embodiments are described in detail with reference to the accompanying drawings, so that how to implement the technical features of the present invention to solve the technical problems and achieve the technical effects can be fully understood and implemented.
The invention discloses a light diffusion material for increasing the light emitting angle of a lampshade, which comprises 80-95% of polycarbonate; 3% -16% of a toughening agent; 0.6 percent of light diffusant; 0.4% of ultraviolet absorbent; 1% -3% of siloxane.
Wherein the light diffusion agent is selected from organic silicon, and the toughening agent is selected from fluorine-containing carbonate polyurethane elastomer.
Several sets of data were tested by the present invention, including example 1: 70% of polycarbonate; 26% of a toughening agent; 1% of light diffusant; 1% of ultraviolet absorbent; example 2: 80% of polycarbonate; 16% of a toughening agent; 0.6 percent of light diffusant; 0.4% of ultraviolet absorbent; 3% of siloxane; example 3: 85% of polycarbonate; 12% of a toughening agent; 0.6 percent of light diffusant; 0.4% of ultraviolet absorbent; 2% of siloxane; example 4: 88% of polycarbonate; 10% of a toughening agent; 0.6 percent of light diffusant; 0.4% of ultraviolet absorbent; 1% of siloxane; example 5: 95% of polycarbonate; 3% of a toughening agent; 0.6 percent of light diffusant; 0.4% of ultraviolet absorbent; 1% of siloxane; example 6: 90% of polycarbonate; 8.5 percent of toughening agent; 0.6 percent of light diffusant; 0.4% of ultraviolet absorbent; 0.5% of siloxane; all groups of data are uniformly made into a spherical lampshade which is matched with a 40w energy-saving lamp, and the following table is shown:
as can be seen from the table above, 80% -95% of polycarbonate is provided; 3% -16% of a toughening agent; 0.6 percent of light diffusant; 0.4% of ultraviolet absorbent; the embodiment with 1% -3% of siloxane has relatively good light-emitting angle and light pattern effect, the preferred embodiment is example 5, when the siloxane is controlled to be 1%, the light-emitting angle is the largest, and the light pattern is more uniform and soft. The siloxane can enhance the crosslinking effect, when the PC raw material is mixed, the PC material can show low-temperature flexibility, and the activity of the light diffusant is enhanced, so that the light guide is more uniform.
The invention also discloses a processing method of the light diffusion material for increasing the light emitting angle of the lampshade, which comprises the following steps:
step a, providing dried polycarbonate, feeding the dried polycarbonate into a high-speed stirrer, stirring and crushing, adding a toughening agent, a light diffusing agent and an ultraviolet absorbent simultaneously, and slowly adding siloxane after stirring for 20 min; at the moment, pigment with corresponding color can be properly added according to the color of the light source, and the control amount of the pigment is 2% -8%.
And b, after fully stirring for 40-60 min, crushing the mixture, putting the mixture into a double-screw extruder, and extruding and granulating at the extrusion temperature of 300-380 ℃ and the screw rotation speed of 120-180 r/min.
And c, cooling the extrudate by water, and cutting the extrudate into particles with the conventional particle size of about 5mm to obtain the novel injection-molded PC material. Thus, injection molding is performed by an injection molding machine.
The foregoing description shows and describes several preferred embodiments of the invention, but as aforementioned, it is to be understood that the invention is not limited to the forms disclosed herein, but is not to be construed as excluding other embodiments and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (5)
1. A light diffusion material for increasing the light emitting angle of a lampshade is characterized by comprising the following components in percentage by weight:
80% -95% of polycarbonate;
3% -16% of a toughening agent;
0.6 percent of light diffusant;
0.4% of ultraviolet absorbent;
1% -3% of siloxane.
2. The light diffusing material for increasing the light emitting angle of the lamp cover as claimed in claim 1, wherein the light diffusing agent is selected from silicones.
3. The light diffusing material for increasing the light emission angle of the light shade according to claim 1, wherein the toughening agent is selected from a fluoro-carbonate polyurethane elastomer.
4. A method for processing a light diffusion material for increasing the light emission angle of a lampshade according to claim 1, comprising the steps of:
step a, providing dried polycarbonate, feeding the dried polycarbonate into a high-speed stirrer, stirring and crushing, adding a toughening agent, a light diffusing agent and an ultraviolet absorbent simultaneously, and slowly adding siloxane after stirring for 20 min;
b, after fully stirring for 40-60 min, putting the mixture into a double-screw extruder for extrusion granulation, wherein the extrusion temperature is 300-380 ℃, and the screw rotation speed is 120-180 r/min;
and c, directly granulating the extrudate after the extrudate is cooled by water.
5. The method as claimed in claim 4, wherein 2% to 8% of pigment is added in step a.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910500324.4A CN112063143A (en) | 2019-06-11 | 2019-06-11 | Light diffusion material for increasing light emitting angle of lampshade and processing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910500324.4A CN112063143A (en) | 2019-06-11 | 2019-06-11 | Light diffusion material for increasing light emitting angle of lampshade and processing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112063143A true CN112063143A (en) | 2020-12-11 |
Family
ID=73658779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910500324.4A Pending CN112063143A (en) | 2019-06-11 | 2019-06-11 | Light diffusion material for increasing light emitting angle of lampshade and processing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112063143A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102250462A (en) * | 2011-06-08 | 2011-11-23 | 广州市聚赛龙工程塑料有限公司 | Polycarbonate composite material and preparation method thereof and method for manufacturing LED (Light Emitting Diode) lamp housing |
| CN106810842A (en) * | 2017-02-08 | 2017-06-09 | 厦门市天宇塑料工业有限公司 | A kind of weather-resistance flame-retardant can be used for light diffusion PC of outdoor lampshade and preparation method thereof |
-
2019
- 2019-06-11 CN CN201910500324.4A patent/CN112063143A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102250462A (en) * | 2011-06-08 | 2011-11-23 | 广州市聚赛龙工程塑料有限公司 | Polycarbonate composite material and preparation method thereof and method for manufacturing LED (Light Emitting Diode) lamp housing |
| CN106810842A (en) * | 2017-02-08 | 2017-06-09 | 厦门市天宇塑料工业有限公司 | A kind of weather-resistance flame-retardant can be used for light diffusion PC of outdoor lampshade and preparation method thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20201211 |