CN104406141B - It is a kind of for fin of LED lamp and preparation method thereof - Google Patents

It is a kind of for fin of LED lamp and preparation method thereof Download PDF

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Publication number
CN104406141B
CN104406141B CN201410373803.1A CN201410373803A CN104406141B CN 104406141 B CN104406141 B CN 104406141B CN 201410373803 A CN201410373803 A CN 201410373803A CN 104406141 B CN104406141 B CN 104406141B
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China
Prior art keywords
parts
fin
prepared
glass fibre
raw material
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Expired - Fee Related
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CN201410373803.1A
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Chinese (zh)
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CN104406141A (en
Inventor
张岩
尹纪伟
王选廷
刘超
公绪波
葛家恒
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
Linyi Power Supply Co of State Grid Shandong Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
Linyi Power Supply Co of State Grid Shandong Electric Power Co Ltd
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Priority to CN201410373803.1A priority Critical patent/CN104406141B/en
Publication of CN104406141A publication Critical patent/CN104406141A/en
Application granted granted Critical
Publication of CN104406141B publication Critical patent/CN104406141B/en
Expired - Fee Related legal-status Critical Current
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2101/00Point-like light sources

Abstract

The invention belongs to photoelectric lighting Material Field, a kind of fin for LED lamp is disclosed, is prepared from by the raw material of following parts by weight, 20 parts of carborundum, 15 parts of magnesia, 10 parts of graphite, 7 parts of glass fibre, 7 parts of makrolon, 6 parts of polyglycolic acid, 4 parts of TDE, 4 parts of glycerin monostearate, 3 parts of vinyl chloride-vinyl acetate resin, 2 parts of aluminium triphosphate, 2 parts of antimony oxide, 2 parts of silica white.The invention also discloses the preparation method of above-mentioned fin.Heat conductivility, fire resistance and the better mechanical property of fin prepared by the present invention, wide market.

Description

It is a kind of for fin of LED lamp and preparation method thereof
Technical field
The invention belongs to photoelectric lighting Material Field, and in particular to a kind of fin for LED lamp and its Preparation method.
Background technology
LED lamp, also known as LED lamp, refer to energy printing opacity, distribution and the utensil for changing LED/light source light distribution, It is used to fixing and protect whole parts and components needed for LED/light source including all in addition to LED/light source, and be connected with power supply must The circuit annex needed.LED lamp is with the technical characterstic such as its efficient, energy-conservation, long-lived, compact, as a new generation's photograph Main force's product in bright market, and effectively pull the high speed development of environmental protection and energy-conservation industry.
Due to LED light occurrence features, its energy input only 20% in lighting device is converted into luminous energy, and remains Remaining 80% is converted into the heat energy of knot point, so as to add the temperature of inside.The increase of internal temperature makes LED illumination During lamp, especially compact design, its performance such as luminous efficiency will significantly decline, and such as use at high temperature for a long time, it will Shorten the life-span of LED illumination etc..In order to solve the above problems, it is necessary to the heat that will be produced inside LED in actual design application Amount is discharged to outside.In the prior art, used by the radiating piece with heat radiating fin structure, passed through heat transfer or thermal convection current The produced heat of LED chip is cooled down etc. effect.
There is heat transfer efficiency in the fin applied in prior art LED lamp and electrical insulation capability is poor mostly, hold Easy thermal deformation, and tensile yield strength difference and the defect such as it is easily broken off, greatly reduce the life-span of light fixture.Many research people Member is improved by exploring new material and new technology to the performance of fin, but often various performances can not get both, it is impossible to Meet and require;Prior art has made a large amount of improvement to fin material, wherein, Chinese patent CN200810121442 describes one The radiating element that expensive high heat conductive insulating plastics are manufactured by die press technology for forming is planted, the radiating element possesses preferable heat conduction Performance, but mechanical performance is barely satisfactory.
The content of the invention
The present invention is used for light-emitting diodes for the defect for overcoming the mechanical performance of prior art presence poor there is provided one kind The fin of spot tool;Present invention also offers the preparation method of fin.
The present invention is achieved by the following technical solutions:
A kind of fin for LED lamp, it is prepared from by the raw material of following parts by weight:
16-20 parts of carborundum, 12-15 parts of magnesia, 8-10 parts of graphite, 6-7 parts of glass fibre, 6-7 parts of makrolon gathers 5-6 parts of hydroxyacetic acid, 3-4 parts of TDE, 3-4 parts of glycerin monostearate, 2-3 parts of vinyl chloride-vinyl acetate resin, aluminium triphosphate 1-2 parts, 1-2 parts of antimony oxide, 1-2 parts of silica white;
Present invention also offers the preparation method of above-mentioned fin, it comprises the following steps:
1) raw material is weighed:Each raw material for standby is weighed according to parts by weight;
2) material A is prepared:Carborundum, magnesia and graphite are delivered into ball mill, it is powder more than 500 mesh to be milled to particle diameter End, then mixes powder with silica white, and 500 revs/min are stirred 10 minutes, obtain material A;Wherein, the particle diameter of silica white is 300-400 mesh, pore volume is 0.35-0.45mL/g, and specific surface area is 600-800m2/g;
3) material B is prepared:By glass fibre, makrolon, polyglycolic acid, TDE, glycerol monostearate Ester, vinyl chloride-vinyl acetate resin, aluminium triphosphate and antimony oxide, put into mixer successively, stir, and are subsequently placed in temperature For 85-90 DEG C, relative humidity is 12-16 hours in 90% hygrothermal environment, obtains material B;
4) injection molding is melted:Material A and material B are put into reactor, 1000 turns/min centrifugal mixers 10 minutes, The batch mixing stirred is discharged in double screw extruder, is expressed into after after batch mixing completely melting in injection machine, at 290-300 DEG C Lower injection molding is produced.
Wherein, a diameter of 10-20um of glass fibre, length is 50-100um.
The beneficial effect that the present invention is obtained mainly have it is following some:
The present invention adjusts compatibility amount by reasonable selection raw material, and the fin various aspects of performance of preparation is excellent, it is adaptable to The fin of LED lamp;Fin prepared by the present invention is drawn while preferable heat conductivility and insulating properties are effectively kept Stretch yield strength and elongation at break is also greatly improved;The present invention by adding carborundum, glass fibre, gathering in the composite The raw materials such as carbonic ester, antimony oxide and silica white, substantially increase heat conductivility, fire resistance and mechanical performance;This hair Bright preparation method is simple to operate, and production cost is low, is conducive to industrial application;The resistance to height of fin prepared by the present invention Warm, ageing-resistant, service life is long.
Embodiment
In order that those skilled in the art more fully understand the technical scheme in the application, have below in conjunction with the application Body embodiment, is more clearly and completely described, it is clear that described embodiment is only the application one to the present invention Divide embodiment, rather than whole embodiments.Based on the embodiment in the application, those of ordinary skill in the art are not making The every other embodiment obtained under the premise of creative work, should all belong to the scope of protection of the invention.
Embodiment 1
A kind of fin for LED lamp, it is prepared from by the raw material of following parts by weight:
16 parts of carborundum, 12 parts of magnesia, 8 parts of graphite, 6 parts of glass fibre, 6 parts of makrolon, 5 parts of polyglycolic acid, 3 parts of TDE, 3 parts of glycerin monostearate, 2 parts of vinyl chloride-vinyl acetate resin, 1 part of aluminium triphosphate, 1 part of antimony oxide, silicon 1 part of rubber powder;
The preparation method of above-mentioned fin comprises the following steps:
1) raw material is weighed:Each raw material for standby is weighed according to parts by weight;
2) material A is prepared:Carborundum, magnesia and graphite are delivered into ball mill, it is powder more than 500 mesh to be milled to particle diameter End, then mixes powder with silica white, and 500 revs/min are stirred 10 minutes, obtain material A;Wherein, the particle diameter of silica white is 300-400 mesh, pore volume is 0.35-0.45mL/g, and specific surface area is 600-800m2/g;
3) material B is prepared:By glass fibre, makrolon, polyglycolic acid, TDE, glycerol monostearate Ester, vinyl chloride-vinyl acetate resin, aluminium triphosphate and antimony oxide, put into mixer successively, stir, and are subsequently placed in temperature For 85 DEG C, relative humidity is 16 hours in 90% hygrothermal environment, obtains material B;
4) injection molding is melted:Material A and material B are put into reactor, 1000 turns/min centrifugal mixers 10 minutes, The batch mixing stirred is discharged in double screw extruder, is expressed into after after batch mixing completely melting in injection machine, in 290 DEG C of bets The type of being moulded into is produced.
Wherein, a diameter of 10um of glass fibre, length is 50um.
Embodiment 2
A kind of fin for LED lamp, it is prepared from by the raw material of following parts by weight:
20 parts of carborundum, 15 parts of magnesia, 10 parts of graphite, 7 parts of glass fibre, 7 parts of makrolon, 6 parts of polyglycolic acid, 4 parts of TDE, 4 parts of glycerin monostearate, 3 parts of vinyl chloride-vinyl acetate resin, 2 parts of aluminium triphosphate, 2 parts of antimony oxide, silicon 2 parts of rubber powder;
Present invention also offers the preparation method of above-mentioned fin, it comprises the following steps:
1) raw material is weighed:Each raw material for standby is weighed according to parts by weight;
2) material A is prepared:Carborundum, magnesia and graphite are delivered into ball mill, it is powder more than 500 mesh to be milled to particle diameter End, then mixes powder with silica white, and 500 revs/min are stirred 10 minutes, obtain material A;Wherein, the particle diameter of silica white is 300-400 mesh, pore volume is 0.35-0.45mL/g, and specific surface area is 600-800m2/g;
3) material B is prepared:By glass fibre, makrolon, polyglycolic acid, TDE, glycerol monostearate Ester, vinyl chloride-vinyl acetate resin, aluminium triphosphate and antimony oxide, put into mixer successively, stir, and are subsequently placed in temperature For 90 DEG C, relative humidity is 12 hours in 90% hygrothermal environment, obtains material B;
4) injection molding is melted:Material A and material B are put into reactor, 1000 turns/min centrifugal mixers 10 minutes, The batch mixing stirred is discharged in double screw extruder, is expressed into after after batch mixing completely melting in injection machine, in 300 DEG C of bets The type of being moulded into is produced.
Wherein, a diameter of 20um of glass fibre, length is 100um.
Embodiment 3
(the unit so that appearance and size is 50 × 20 × 8 as an example:Millimeter), fin prepared by detection embodiment 1 and embodiment 2 Performance parameter, concrete outcome is shown in Table 1:
Table 1
Exemplary description is carried out to the present invention above in conjunction with specific embodiment, it is clear that realization of the invention is not by upper The limitation of mode is stated, if the various improvement of inventive concept and technical scheme of the present invention progress are employed, or not improved general The design and technical scheme of the present invention directly applies to other occasions, within the scope of the present invention.

Claims (2)

1. a kind of fin for LED lamp, it is characterised in that the fin by following parts by weight raw material It is prepared from:
16-20 parts of carborundum, 12-15 parts of magnesia, 8-10 parts of graphite, 6-7 parts of glass fibre, 6-7 parts of makrolon, poly- hydroxyl 5-6 parts of acetic acid, 3-4 parts of TDE, 3-4 parts of glycerin monostearate, 2-3 parts of vinyl chloride-vinyl acetate resin, aluminium triphosphate 1-2 Part, 1-2 parts of antimony oxide, 1-2 parts of silica white;
The preparation method of the fin comprises the following steps:
1) raw material is weighed:Each raw material for standby is weighed according to parts by weight;
2) material A is prepared:Carborundum, magnesia and graphite are delivered into ball mill, it is powder more than 500 mesh to be milled to particle diameter, Then powder is mixed with silica white, 500 revs/min are stirred 10 minutes, obtain material A;Wherein, the particle diameter of silica white is 300- 400 mesh, pore volume is 0.35-0.45mL/g, and specific surface area is 600-800m2/g;
3) material B is prepared:By glass fibre, makrolon, polyglycolic acid, TDE, glycerin monostearate, chlorine Vinegar resin, aluminium triphosphate and antimony oxide, put into mixer successively, stir, and are subsequently placed in temperature for 85- 90 DEG C, relative humidity is 12-16 hours in 90% hygrothermal environment, obtains material B;
4) injection molding is melted:Material A and material B are put into reactor, 1000 turns/min centrifugal mixers 10 minutes will be stirred Mix uniform batch mixing to be discharged in double screw extruder, be expressed into after after batch mixing completely melting in injection machine, in 290-300 DEG C of bet The type of being moulded into is produced.
2. fin as claimed in claim 1, it is characterised in that a diameter of 10-20um of the glass fibre, length is 50-100um。
CN201410373803.1A 2014-07-31 2014-07-31 It is a kind of for fin of LED lamp and preparation method thereof Expired - Fee Related CN104406141B (en)

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CN104406141B true CN104406141B (en) 2017-07-28

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104725827A (en) * 2015-04-12 2015-06-24 芜湖市神龙新能源科技有限公司 LED lamp cooling fin convenient for cooling

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6162849A (en) * 1999-01-11 2000-12-19 Ferro Corporation Thermally conductive thermoplastic
CN103044889A (en) * 2012-12-31 2013-04-17 广东银禧科技股份有限公司 LED lamp used extrusion grade heat-conducting makrolon material and preparation method thereof
CN103524863A (en) * 2013-09-25 2014-01-22 吴江市天源塑胶有限公司 Heat-conducting wear-resistant plastic
CN103865257A (en) * 2014-03-31 2014-06-18 厦门市瑞胜发塑胶工业有限公司 Thermoplastic polyamide composition and preparation method thereof
WO2014091350A2 (en) * 2012-12-14 2014-06-19 Sabic Innovative Plastics Ip B.V. Thermally conductive flame retardant polymer compositions and uses thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6162849A (en) * 1999-01-11 2000-12-19 Ferro Corporation Thermally conductive thermoplastic
WO2014091350A2 (en) * 2012-12-14 2014-06-19 Sabic Innovative Plastics Ip B.V. Thermally conductive flame retardant polymer compositions and uses thereof
CN103044889A (en) * 2012-12-31 2013-04-17 广东银禧科技股份有限公司 LED lamp used extrusion grade heat-conducting makrolon material and preparation method thereof
CN103524863A (en) * 2013-09-25 2014-01-22 吴江市天源塑胶有限公司 Heat-conducting wear-resistant plastic
CN103865257A (en) * 2014-03-31 2014-06-18 厦门市瑞胜发塑胶工业有限公司 Thermoplastic polyamide composition and preparation method thereof

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