CN108178909A - A kind of road lighting LED lamp cover composite material and preparation method thereof - Google Patents
A kind of road lighting LED lamp cover composite material and preparation method thereof Download PDFInfo
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- CN108178909A CN108178909A CN201810122144.2A CN201810122144A CN108178909A CN 108178909 A CN108178909 A CN 108178909A CN 201810122144 A CN201810122144 A CN 201810122144A CN 108178909 A CN108178909 A CN 108178909A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/06—Unsaturated polyesters
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/36—Sulfur-, selenium-, or tellurium-containing compounds
- C08K5/41—Compounds containing sulfur bound to oxygen
- C08K5/42—Sulfonic acids; Derivatives thereof
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- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08L2201/10—Transparent films; Clear coatings; Transparent materials
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- C08L2205/00—Polymer mixtures characterised by other features
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- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/18—Spheres
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING 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
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
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Abstract
The invention discloses a kind of road lighting LED lamp cover composite materials and preparation method thereof, are related to high molecular material and lighting technical field, which includes following raw material by weight：Modified poly ester, polystyrene superfine powder, nano silicon dioxide, nano-aluminium oxide, polypropylene fibre, organic silicon resin ball-shaped micro powder, dodecyl sodium sulfate, hindered amine light stabilizer, coupling agent, antioxidant, dispersant, fire retardant and ultra-violet absorber.Preparation method is by made from the operations such as the mixing to raw material and extrusion.The road lighting of present invention LED lamp cover composite material preparation process simplicity, it is of low cost, there is excellent mechanical performance and high total light transmittance, improve its practicability in road lighting, market application foreground is wide.
Description
Technical field
The present invention relates to high molecular materials and lighting technical field, and in particular to a kind of road lighting LED lamp cover is compound
Material and preparation method thereof.
Background technology
With the development of the times, the continuous quickening of modernization construction paces, people’s lives level is continuously improved, to road
Illumination and lighting engineering demand are also gradually increased.But in LED road lamp shade in the prior art, still use traditional glass more
Cover, and after more and more using the energy such as solar panel, wind energy or accumulator as power supply mechanism with LED street lamp, it is right
It will seem particularly necessary in the propulsion of LED street lamp energy utilization degree and lampshade mechanical performance.
Based on the above, develop a kind of LED road lamp shade of high comprehensive performance is highly desirable with composite material.
Invention content
For problems of the prior art, the present invention provides a kind of road lighting LED lamp cover composite material and
Preparation method, this kind of composite material preparation process simplicity is of low cost, and having excellent mechanical performance and height, light is saturating entirely
Rate is crossed, improves its practicability in road lighting, market application foreground is wide.
In order to achieve the above object, the present invention is achieved through the following technical solutions：
A kind of road lighting LED lamp cover composite material, including following raw material by weight：Modified poly ester 60-80
Part, 15-25 parts of polystyrene superfine powder, 10-20 parts of nano silicon dioxide, 5-15 parts of nano-aluminium oxide, polypropylene fibre
6-10 parts, 2-4 parts of organic silicon resin ball-shaped micro powder, 1-3 parts of dodecyl sodium sulfate, 1-2 parts of hindered amine light stabilizer, coupling agent
0.6-1 parts of 1-3 parts, 1-2 parts of antioxidant, 1-2 parts of dispersant, 0.8-1.2 parts of fire retardant and ultra-violet absorber；
Above-mentioned modified poly ester is made by following steps：In 500 liters of reaction kettles add in 20kg terephthalic acid (TPA),
The acrylic acid of 20kg, the ethylene glycol of 20kg, the methylcellulose of 20kg and 10kg bipentaerythrite, polymerization catalyst is acetic acid
Antimony, dosage 200-400g；It is beaten later, nitrogen is replaced 3-5 times, esterification is carried out at 220-240 DEG C, until reaching esterification
Rate is 94-98%, obtains esterification material；Then, it for 240-260 DEG C and vacuumizes in temperature and carries out prepolymerization reaction 2-
3h obtains prepolymer, and preshrunk reaction present invention pressure is gradually evacuated down to 600Pa, rate of pressure reduction 800pa/ from atmospheric pressure
min；Finally, the polymerization processing 2-3h under the reaction pressure of 120-160Pa and 240-260 DEG C of reaction temperature, water cooling slice obtain
To modified poly ester.
Further, above-mentioned composite material includes following raw material by weight：70 parts of modified poly ester, polystyrene surpass
20 parts of fine powder, 15 parts of nano silicon dioxide, 10 parts of nano-aluminium oxide, 8 parts of polypropylene fibre, organic silicon resin ball-shaped micro powder
3 parts, 2 parts of dodecyl sodium sulfate, 1.5 parts of hindered amine light stabilizer, 2 parts of coupling agent, 1.5 parts of antioxidant, 1.5 parts of dispersant,
0.8 part of 1 part of fire retardant and ultra-violet absorber.
Further, above-mentioned modified poly ester is made by following steps：In 500 liters of reaction kettles add in 20kg to benzene
Dioctyl phthalate, the acrylic acid of 20kg, the ethylene glycol of 20kg, the methylcellulose of 20kg and 10kg bipentaerythrite, it is polymerization catalyzed
Agent is antimony acetate, dosage 300g；It is beaten later, nitrogen is replaced 4 times, esterification is carried out at 230 DEG C, until reaching esterification yield
It is 96%, obtains esterification material；Then, in the case that temperature for 250 DEG C and vacuumize carry out prepolymerization reaction 2.5h obtain it is pre-
Polymers, preshrunk reaction present invention pressure are gradually evacuated down to 600Pa, rate of pressure reduction 800pa/min from atmospheric pressure；Finally,
The polymerization processing 2.5h under the reaction pressure of 140Pa and 250 DEG C of reaction temperature, water cooling slice obtain modified poly ester.
Preferably, above-mentioned coupling agent is using γ-glycidyl ether oxygen propyl trimethoxy silicane, three second of γ-aminopropyl
One kind in oxysilane or N- β-(aminoethyl)-γ-aminopropyltriethoxy dimethoxysilane.
Preferably, above-mentioned antioxidant using three (2,4- di-tert-butyl-phenyl) phosphite esters, β-(3,5- di-t-butyls-
4- hydroxy phenyls) in the positive octadecanol ester of propionic acid or four [β-(3,5- di-tert-butyl-hydroxy phenyls) propionic acid] pentaerythritol esters
One kind.
Preferably, above-mentioned dispersant is using one kind in polyacrylamide, guar gum or polyethoxy alkylphenol.
Preferably, above-mentioned fire retardant is using in tert-butylation aryl phosphate ester, diphenyl phosphoester or melamine
In one kind.
Preferably, above-mentioned ultra-violet absorber is using 2,4,6- tri- (2,4- dihydroxy phenyl) -1,3,5-triazines, 2 (2-
Dihydroxy benzenes -5- benzyls) benzotriazole or 2, one kind in 4 dihydroxy benaophenonels.
A kind of above-mentioned road lighting preparation method of LED lamp cover composite material, follows the steps below：
(1) raw material is weighed by the weight；
(2) it will be stirred in feedstock transportation to high-speed mixer, it is following to operate：
1. modified poly ester and polystyrene superfine powder are delivered in high-speed mixer and are stirred 1.5-2.5h, mixing temperature
Spend is 75-85 DEG C；
2. add in nano silicon dioxide, nano-aluminium oxide, polypropylene fibre, organic silicon resin ball-shaped micro powder and 12
Continue to be stirred 2-3h in sodium alkyl sulfonate to high-speed mixer, mixing temperature is 80-90 DEG C；
Continue to be stirred 2-3h 3. adding in surplus stock to high-speed mixer, mixing temperature is 85-95 DEG C, obtains object
Material；
(3) material is finally delivered to extruding pelletization in twin-screw extrusion equipment；
The running parameter of the twin-screw extrusion equipment is as follows：
Extrusion temperature：One area's temperature is 170~180 DEG C, and two area's temperature are 185~195 DEG C, and three area's temperature are 200~215
DEG C, four area's temperature are 215~225 DEG C, five 225~240 DEG C of areas, 220~230 DEG C of head；
It finds time：4-6min；
Screw speed：180~220r/min；
Extrusion pressure：12~16Mpa.
The present invention has following advantageous effect：
(1) LED lamp cover composite material raw material sources of the invention are extensive, of low cost, and preparation process is easy, are made with it
LED lamp cover excellent size stability, it is light-weight, be unlikely to deform, ensure that long-term effectively engaged with LED substrate it is smooth
Degree, raw material is environmentally protective, nontoxic, without discharge, pollution-free, and utilization rate is high, suitable for scale of mass production；
(2) LED lamp cover composite material machinery of the invention is had excellent performance, and has shock resistance good and yield strength height
The characteristics of, and this kind of material is fire-retardant, high temperature resistant, corrosion-resistant, ageing-resistant, substantially increases the service life of lampshade product, widens
Its application range, has higher safety and reliability, and market application foreground is wide；
(3) the modified poly ester transparency employed in raw material of the present invention is high, and material compatibility is good, and comprehensive performance is superior, protects
It has demonstrate,proved the homodisperse of the fillers such as itself and nano silicon dioxide and auxiliary agent and has mixed, further improved production efficiency；
(4) LED lamp cover composite material of the invention can be realized has better substrate performance, full light on optical properties
Transmitance is high, and light irradiated area is big, and overcomes LED lamp cover in the prior art and the defects of reunion, halation, blackening occur, carries
Its high practicability in road lighting.
Specific embodiment
The specific embodiment of the present invention is further described with reference to embodiment, following embodiment is only used for more
Technical scheme of the present invention is clearly demonstrated, and is not intended to limit the protection scope of the present invention and limits the scope of the invention.
In the present invention it is raw materials used choose it is as shown in table 1 below：
Table 1
The following table 2 is the material composition of LED lamp cover composite material in example 1 below -3：
Table 2
Embodiment 1
Modified poly ester is made by following steps in raw material：In 500 liters of reaction kettles add in 20kg terephthalic acid (TPA),
The acrylic acid of 20kg, the ethylene glycol of 20kg, the methylcellulose of 20kg and 10kg bipentaerythrite, polymerization catalyst is acetic acid
Antimony, dosage 200g；It being beaten later, nitrogen is replaced 3 times, and esterification is carried out at 220 DEG C, until it is 94% to reach esterification yield,
Obtain esterification material；Then, prepolymer, preshrunk are obtained with progress prepolymerization reaction 2h is vacuumized for 240 DEG C in temperature
Reaction present invention pressure is gradually evacuated down to 600Pa, rate of pressure reduction 800pa/min from atmospheric pressure；Finally, 120Pa's
Polymerization processing 2h under reaction pressure and 240 DEG C of reaction temperature, water cooling slice obtain modified poly ester.
Coupling agent uses γ-glycidyl ether oxygen propyl trimethoxy silicane；β-(3,5- di-tert-butyl-hydroxy phenyls)
The positive octadecanol ester of propionic acid；Dispersant uses polyacrylamide；Fire retardant uses diphenyl phosphoester；Ultra-violet absorber uses
2,4,6- tri- (2,4- dihydroxy phenyl) -1,3,5-triazines.
A kind of road lighting preparation method of LED lamp cover composite material, follows the steps below：
(1) above-mentioned raw materials are delivered in high-speed mixer and are stirred processing, concrete operations flow is as follows：
1. modified poly ester and polystyrene superfine powder to be delivered in high-speed mixer and be stirred 1.5h, mixing temperature is
75℃；
2. add in nano silicon dioxide, nano-aluminium oxide, polypropylene fibre, organic silicon resin ball-shaped micro powder and 12
Continue to be stirred 2h in sodium alkyl sulfonate to high-speed mixer, mixing temperature is 80 DEG C；
Continue to be stirred 2h 3. adding in surplus stock to high-speed mixer, mixing temperature is 85 DEG C, obtains material；
(2) material is delivered to extruding pelletization in twin-screw extrusion equipment；
The running parameter of above-mentioned twin-screw extrusion equipment is as follows：
Extrusion temperature：One area's temperature is 170 DEG C, and two area's temperature are 185 DEG C, and three area's temperature are 200 DEG C, and four area's temperature are
215 DEG C, five 225 DEG C of areas, 220 DEG C of head；
It finds time：4min；
Screw speed：180r/min；
Extrusion pressure：12Mpa.
Embodiment 2
Modified poly ester is made by following steps in raw material：In 500 liters of reaction kettles add in 20kg terephthalic acid (TPA),
The acrylic acid of 20kg, the ethylene glycol of 20kg, the methylcellulose of 20kg and 10kg bipentaerythrite, polymerization catalyst is acetic acid
Antimony, dosage 300g；It being beaten later, nitrogen is replaced 4 times, and esterification is carried out at 230 DEG C, until it is 96% to reach esterification yield,
Obtain esterification material；Then, prepolymer is obtained with progress prepolymerization reaction 2.5h is vacuumized for 250 DEG C in temperature, in advance
Contracting reaction present invention pressure is gradually evacuated down to 600Pa, rate of pressure reduction 800pa/min from atmospheric pressure；Finally, in 140Pa
Reaction pressure and 250 DEG C of reaction temperature under polymerization processing 2.5h, water cooling slice, obtain modified poly ester.
Coupling agent uses gamma-aminopropyl-triethoxy-silane；Antioxidant uses three (2,4- di-tert-butyl-phenyls) phosphorous acid
Ester；Dispersant uses guar gum；Fire retardant uses tert-butylation aryl phosphate ester；Ultra-violet absorber uses 2 (2- dihydroxy
Benzene -5- benzyls) benzotriazole.
A kind of road lighting preparation method of LED lamp cover composite material, follows the steps below：
(1) above-mentioned raw materials are delivered in high-speed mixer and are stirred processing, concrete operations flow is as follows：
1. modified poly ester and polystyrene superfine powder are delivered in high-speed mixer and are stirred 2h, mixing temperature 80
℃；
2. add in nano silicon dioxide, nano-aluminium oxide, polypropylene fibre, organic silicon resin ball-shaped micro powder and 12
Continue to be stirred 2.5h in sodium alkyl sulfonate to high-speed mixer, mixing temperature is 85 DEG C；
Continue to be stirred 2-3h 3. adding in surplus stock to high-speed mixer, mixing temperature is 90 DEG C, obtains material；
(2) material is delivered to extruding pelletization in twin-screw extrusion equipment；
The running parameter of above-mentioned twin-screw extrusion equipment is as follows：
Extrusion temperature：One area's temperature is 175 DEG C, and two area's temperature are 190 DEG C, and three area's temperature are 210 DEG C, and four area's temperature are
220 DEG C, five 230 DEG C of areas, 225 DEG C of head；
It finds time：5min；
Screw speed：200r/min；
Extrusion pressure：14Mpa.
Embodiment 3
Modified poly ester is made by following steps in raw material：In 500 liters of reaction kettles add in 20kg terephthalic acid (TPA),
The acrylic acid of 20kg, the ethylene glycol of 20kg, the methylcellulose of 20kg and 10kg bipentaerythrite, polymerization catalyst is acetic acid
Antimony, dosage 400g；It being beaten later, nitrogen is replaced 5 times, and esterification is carried out at 240 DEG C, until it is 98% to reach esterification yield,
Obtain esterification material；Then, prepolymer, preshrunk are obtained with progress prepolymerization reaction 3h is vacuumized for 260 DEG C in temperature
Reaction present invention pressure is gradually evacuated down to 600Pa, rate of pressure reduction 800pa/min from atmospheric pressure；Finally, 160Pa's
Polymerization processing 3h under reaction pressure and 260 DEG C of reaction temperature, water cooling slice obtain modified poly ester.
Coupling agent uses N- β-(aminoethyl)-γ-aminopropyltriethoxy dimethoxysilane；Antioxidant uses four [β-(3,5-
Di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester；Dispersant uses polyethoxy alkylphenol；Fire retardant uses melamine
Amine；Ultra-violet absorber uses 2,4 dihydroxy benaophenonels.
A kind of road lighting preparation method of LED lamp cover composite material, follows the steps below：
(1) above-mentioned raw materials are delivered in high-speed mixer and are stirred processing, concrete operations flow is as follows：
1. modified poly ester and polystyrene superfine powder to be delivered in high-speed mixer and be stirred 2.5h, mixing temperature is
85℃；
2. add in nano silicon dioxide, nano-aluminium oxide, polypropylene fibre, organic silicon resin ball-shaped micro powder and 12
Continue to be stirred 3h in sodium alkyl sulfonate to high-speed mixer, mixing temperature is 90 DEG C；
Continue to be stirred 3h 3. adding in surplus stock to high-speed mixer, mixing temperature is 95 DEG C, obtains material；
(2) material is delivered to extruding pelletization in twin-screw extrusion equipment；
The running parameter of above-mentioned twin-screw extrusion equipment is as follows：
Extrusion temperature：One area's temperature is 180 DEG C, and two area's temperature are 195 DEG C, and three area's temperature are 215 DEG C, and four area's temperature are
225 DEG C, five 240 DEG C of areas, 230 DEG C of head；
It finds time：6min；
Screw speed：220r/min；
Extrusion pressure：16Mpa.
Application Example
The experiment lampshade examined is fabricated for LED lamp cover composite material using road lighting made from above-described embodiment 1-3
(wall thickness 1mm), successively labeled as experiment lampshade 1, experiment lampshade 2 and experiment lampshade 3；It is applied to the street lamp that height is 6 meters
On (high-pressure sodium lamp), its optical property of experimental record and lampshade mechanical performance common compare lampshade (material are sub- with previous
Gram force) it is compared, specific experiment result parameter see the table below shown in 3；
Table 3：
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, although with reference to aforementioned reality
Example is applied the present invention is described in detail, it for those skilled in the art, still can be to aforementioned each implementation
Technical solution recorded in example modifies or carries out equivalent replacement to which part technical characteristic.All essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention god.
Claims (9)
1. a kind of road lighting LED lamp cover composite material, which is characterized in that including following raw material by weight：It is modified
60-80 parts of polyester, 10-20 parts of nano silicon dioxide, 5-15 parts of nano-aluminium oxide, gathers at 15-25 parts of polystyrene superfine powder
6-10 parts of tacryl, 2-4 parts of organic silicon resin ball-shaped micro powder, 1-3 parts of dodecyl sodium sulfate, hindered amine light stabilizer 1-2
Part, 1-3 parts of coupling agent, 1-2 parts of antioxidant, 1-2 parts of dispersant, 0.8-1.2 parts of fire retardant and 0.6-1 parts of ultra-violet absorber；
The modified poly ester is made by following steps：Added in 500 liters of reaction kettles the terephthalic acid (TPA) of 20kg, 20kg third
Olefin(e) acid, the ethylene glycol of 20kg, the methylcellulose of 20kg and 10kg bipentaerythrite, polymerization catalyst is antimony acetate, dosage
For 200-400g；It is beaten later, nitrogen is replaced 3-5 times, and esterification is carried out at 220-240 DEG C, until reaching esterification yield for 94-
98%, obtain esterification material；Then, it is obtained in temperature for 240-260 DEG C with progress prepolymerization reaction 2-3h is vacuumized
Prepolymer, preshrunk reaction present invention pressure are gradually evacuated down to 600Pa, rate of pressure reduction 800pa/min from atmospheric pressure；Most
Afterwards, the polymerization processing 2-3h under the reaction pressure of 120-160Pa and 240-260 DEG C of reaction temperature, water cooling slice are modified
Polyester.
2. a kind of road lighting LED lamp cover composite material according to claim 1, which is characterized in that including pressing below
The raw material of parts by weight meter：70 parts of modified poly ester, 20 parts of polystyrene superfine powder, 15 part, nanometer three of nano silicon dioxide oxidation two
10 parts of aluminium, 8 parts of polypropylene fibre, 3 parts of organic silicon resin ball-shaped micro powder, 2 parts of dodecyl sodium sulfate, hindered amine light stabilizer
0.8 part of 1.5 parts, 2 parts of coupling agent, 1.5 parts of antioxidant, 1.5 parts of dispersant, 1 part of fire retardant and ultra-violet absorber.
3. a kind of road lighting LED lamp cover composite material according to claim 1, which is characterized in that the modification gathers
Ester is made by following steps：The second of the terephthalic acid (TPA) of 20kg, the acrylic acid of 20kg, 20kg are added in 500 liters of reaction kettles
The bipentaerythrite of glycol, the methylcellulose of 20kg and 10kg, polymerization catalyst are antimony acetate, dosage 300g；It beats later
Slurry, nitrogen are replaced 4 times, and esterification is carried out at 230 DEG C, until it is 96% to reach esterification yield, obtain esterification material；Then, exist
Temperature carries out prepolymerization reaction 2.5h for 250 DEG C and in the case of vacuumizing and obtains prepolymer, preshrunk react present invention pressure from
Atmospheric pressure is gradually evacuated down to 600Pa, rate of pressure reduction 800pa/min；Finally, in the anti-of the reaction pressure of 140Pa and 250 DEG C
Polymerization processing 2.5h at a temperature of answering, water cooling slice obtain modified poly ester.
A kind of 4. road lighting LED lamp cover composite material according to claim 1, which is characterized in that the coupling agent
For γ-glycidyl ether oxygen propyl trimethoxy silicane, gamma-aminopropyl-triethoxy-silane or N- β-(aminoethyl)-γ-ammonia third
One kind in ylmethyl dimethoxysilane.
A kind of 5. road lighting LED lamp cover composite material according to claim 1, which is characterized in that the antioxidant
For three (2,4- di-tert-butyl-phenyls) phosphite esters, β-positive octadecanol ester of (3,5- di-tert-butyl-hydroxy phenyls) propionic acid or
One kind in four [β-(3,5- di-tert-butyl-hydroxy phenyls) propionic acid] pentaerythritol esters.
A kind of 6. road lighting LED lamp cover composite material according to claim 1, which is characterized in that the dispersant
For one kind in polyacrylamide, guar gum or polyethoxy alkylphenol.
A kind of 7. road lighting LED lamp cover composite material according to claim 1, which is characterized in that the fire retardant
For one kind in tert-butylation aryl phosphate ester, diphenyl phosphoester or melamine.
A kind of 8. road lighting LED lamp cover composite material according to claim 1, which is characterized in that the ultraviolet light
Absorbent be 2,4,6- tri- (2,4- dihydroxy phenyl) -1,3,5-triazines, 2 (2- dihydroxy benzenes -5- benzyls) benzotriazole or
One kind in 2,4 dihydroxy benaophenonels.
9. a kind of preparation method of road lighting according to any one of claims 1 to 8 LED lamp cover composite material,
It is characterized in that, includes the following steps：
(1) raw material is weighed by the weight；
(2) it will be stirred in feedstock transportation to high-speed mixer, it is following to operate：
1. modified poly ester and polystyrene superfine powder to be delivered in high-speed mixer and be stirred 1.5-2.5h, mixing temperature is
75-85℃；
2. add in nano silicon dioxide, nano-aluminium oxide, polypropylene fibre, organic silicon resin ball-shaped micro powder and dodecyl
Continue to be stirred 2-3h in sodium sulfonate to high-speed mixer, mixing temperature is 80-90 DEG C；
Continue to be stirred 2-3h 3. adding in surplus stock to high-speed mixer, mixing temperature is 85-95 DEG C, obtains material；
(3) material is finally delivered to extruding pelletization in twin-screw extrusion equipment；
The running parameter of the twin-screw extrusion equipment is as follows：
Extrusion temperature：One area's temperature is 170~180 DEG C, and two area's temperature are 185~195 DEG C, and three area's temperature are 200~215 DEG C,
Four area's temperature are 215~225 DEG C, five 225~240 DEG C of areas, 220~230 DEG C of head；
It finds time：4-6min；
Screw speed：180~220r/min；
Extrusion pressure：12~16Mpa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810122144.2A CN108178909A (en) | 2018-02-07 | 2018-02-07 | A kind of road lighting LED lamp cover composite material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810122144.2A CN108178909A (en) | 2018-02-07 | 2018-02-07 | A kind of road lighting LED lamp cover composite material and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109265959A (en) * | 2018-09-21 | 2019-01-25 | 正安县欧尚电器有限公司 | A kind of plastic lamp shade |
| CN109595498A (en) * | 2019-01-23 | 2019-04-09 | 温州鸿达建设有限公司 | A kind of street illumination LED street lamp |
| WO2020126984A1 (en) | 2018-12-20 | 2020-06-25 | Lanxess Deutschland Gmbh | Polyester compositions |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101967272A (en) * | 2010-05-19 | 2011-02-09 | 四川东材科技集团股份有限公司 | Method for preparing polyester film for solar cell backsheet film |
| CN106751185A (en) * | 2016-12-12 | 2017-05-31 | 天长市康宁塑胶科技有限公司 | A kind of flame-retardant modified plastic material of high impact properties |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101967272A (en) * | 2010-05-19 | 2011-02-09 | 四川东材科技集团股份有限公司 | Method for preparing polyester film for solar cell backsheet film |
| CN106751185A (en) * | 2016-12-12 | 2017-05-31 | 天长市康宁塑胶科技有限公司 | A kind of flame-retardant modified plastic material of high impact properties |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109265959A (en) * | 2018-09-21 | 2019-01-25 | 正安县欧尚电器有限公司 | A kind of plastic lamp shade |
| WO2020126984A1 (en) | 2018-12-20 | 2020-06-25 | Lanxess Deutschland Gmbh | Polyester compositions |
| CN109595498A (en) * | 2019-01-23 | 2019-04-09 | 温州鸿达建设有限公司 | A kind of street illumination LED street lamp |
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