CN105461864A - Preparation of polycarbonate photodiffusion agent - Google Patents
Preparation of polycarbonate photodiffusion agent Download PDFInfo
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- CN105461864A CN105461864A CN201510943464.0A CN201510943464A CN105461864A CN 105461864 A CN105461864 A CN 105461864A CN 201510943464 A CN201510943464 A CN 201510943464A CN 105461864 A CN105461864 A CN 105461864A
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- polycarbonate
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- light diffusing
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F283/00—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G
- C08F283/02—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polycarbonates or saturated polyesters
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Graft Or Block Polymers (AREA)
- Optical Elements Other Than Lenses (AREA)
Abstract
The invention provides preparation of a polycarbonate photodiffusion agent. In a reaction kettle, pure water and polymerization inhibitor, a certain amount of emulsifier, initiator, polycarbonate, glycidyl methacrylate and vinyl versatate are added and heated to a reaction temperature, and after the reaction is over, centrifugation and drying are performed to obtain the product.
Description
Technical field
The present invention relates to a kind of light diffusing agent, particularly a kind of preparation of polycarbonate light diffusing agent.
Background technology
Photodiffusion material is used widely at illuminating industry especially field of LED illumination.Tradition photodiffusion material has the inorganic of different refractivity or organic diffusion particle mainly through adding in transparent plastics base-material, comprises SiO
2, TiO
2, CaCO
3, BaSO
4with the inorganic particles such as glass microballon, and the organic polymer microparticles such as polymethylmethacrylate, polystyrene, silicone resin, reach the object improving material mist degree, convert point, line source to line, area source.
CN104109384 relates to a kind of polycarbonate light diffusing agent, and its raw material comprises polysiloxane particle, light scattering agent 1, light scattering agent 2, the compatilizer of freezing and pulverizing.The present invention adopts the method for cryogenic freezing and ultrasonic grinding, and commercially available polysiloxane particle is converted into the broken polysiloxane particle of low-temperature fine powder, it is added in polycarbonate material, and polycarbonate material can be made to obtain outstanding atomizing effect; The broken polysiloxane particle of low-temperature fine powder of the present invention also overcomes existing polyurethane acroleic acid class light diffusing agent to the impact of polycarbonate material performance simultaneously, enables the performance such as shock resistance, processing heat stability that the light diffusing polycarbonate material obtained by the present invention keeps outstanding.
CN1102863756 relates to a kind of polycarbonate compositions, belongs to technical field of polymer materials.It is made up of the raw material of following parts by weight: polycarbonate resin 90 ~ 110 parts; Polyester copolymer 5 ~ 10; Organosilicon auxiliary agent 0.2 ~ 0.5 part; Scattering core auxiliary agent 0.5 ~ 6 part; 0.02 ~ 0.3 part, oxidation inhibitor; Lubricant 0.3 ~ 0.7 part.There is excellent light diffusing energy and high transmittance, there is the flame retardant properties of standing out from one's fellows simultaneously.
The light diffusing agent of existing known technology disperses bad in the base, has agglomeration.Need to carry out surface treatment to ensure to be uniformly dispersed, to improve light dispersiveness.
Summary of the invention
For the deficiencies in the prior art, the invention provides a kind of preparation of polycarbonate light diffusing agent.
In a kettle., squeeze into pure water, stopper, add a certain amount of emulsifying agent, initiator, polycarbonate, glycidyl methacrylate, tertiary ethylene carbonate, allyloxy trimethyl silane, is warming up to temperature of reaction, and question response terminates, centrifugal, dry.Namely this patent product is obtained.
The invention provides a kind of preparation of polycarbonate light diffusing agent, obtained by following steps:
The preparation of step 1. aqueous phase
By weight, add 1000 parts of water in a kettle., 0.5-2 part emulsifying agent (preferably 1 part), stirs;
The preparation of step 2. oil phase
By weight, by 100 parts of polycarbonate powders, 0.5-3 part glycidyl methacrylate, 0.5-3 part tertiary ethylene carbonate, 0.1-1 part allyloxy trimethyl silane mixes, then adds 0.05-0.5 part initiator, stirs;
Step 3. polyreaction
Being added in step 1 to be equipped with by the oil-phase solution prepared prepares in the reactor of aqueous phase, passes into, and then from 70-100 DEG C of reaction 8-20h, reaction terminates rear centrifugal, and drying obtains product.
Described emulsifying agent comprises anionic emulsifier, is any one in chain alkyl type anionic emulsifier, Perfluorocaprylic Acid sylvite or the ammonium salts such as ammonium lauryl sulfate, Sodium dodecylbenzene sulfonate, cetyl benzenesulfonic acid sodium, B-53, Voranol EP 2001 sodium sulfate and paraffin sulfonate and the pungent sulfonate sodium of perfluor alkane or ammonium salt.Preferred ammonium lauryl sulfate.
The preferred Potassium Persulphate of described initiator, ammonium persulphate.
Described glycidyl methacrylate, tertiary ethylene carbonate, allyloxy trimethyl silane, polycarbonate resin lipoid microsphere is commercially available prod.
Beneficial effect of the present invention:
Existing light diffusing agent disperses bad in the base, has agglomeration.Need to carry out surface treatment to ensure to be uniformly dispersed, to improve light dispersiveness.Light diffusing particles through surface aggregate modification does not have dispersion inequality, and the shortcomings such as reunion, transmittance is higher.
Embodiment
Following examples are only further illustrate the present invention, are not restriction the scope of protection of the invention.
The invention provides a kind of preparation of polycarbonate light diffusing agent, obtained by following steps:
Embodiment 1
The preparation of step 1. aqueous phase
Add 1000Kg water in 2000L autoclave, 1Kg ammonium lauryl sulfate, stirs.
The preparation of step 2. oil phase
In 200L reactor, by 100Kg polycarbonate (Japanese Supreme Being people, L-1250WP type, 100 order powders), 1Kg tertiary ethylene carbonate, 1Kg glycidyl methacrylate, 0.5Kg allyloxy trimethyl silane, then add 0.08Kg Potassium Persulphate initiator, stir.
Step 3. polyreaction
Being added in step 1 to be equipped with by the oil-phase solution prepared prepares in the reactor of aqueous phase, and then from 90 DEG C of reaction 14h, reaction terminates rear centrifugal, and drying obtains product.Be numbered SX-1.
Embodiment 2
The preparation of step 1. aqueous phase
Add 1000Kg water in 2000L autoclave, 0.5Kg ammonium lauryl sulfate, stirs.
The preparation of step 2. oil phase
In 200L reactor, by 100Kg polycarbonate (Japanese Supreme Being people, L-1250WP type, 200 order powders), 0.5Kg tertiary ethylene carbonate, 0.5Kg glycidyl methacrylate, 0.1Kg allyloxy trimethyl silane, monomer mixes, then adds 0.05Kg Potassium Persulphate initiator, stirs.
Step 3. polyreaction
Being added in step 1 to be equipped with by the oil-phase solution prepared prepares in the reactor of aqueous phase, and then from 70 DEG C of reaction 20h, reaction terminates rear centrifugal, and drying obtains product.Be numbered SX-2.
Embodiment 3
The preparation of step 1. aqueous phase
Add 1000Kg water in 2000L autoclave, 2Kg cetyl benzenesulfonic acid sodium, stirs.
The preparation of step 2. oil phase
In 200L reactor, by 100Kg polycarbonate (Japanese Supreme Being people, L-1250WP type, 100 order powders), 3Kg tertiary ethylene carbonate, 3Kg glycidyl methacrylate, 1Kg allyloxy trimethyl silane, monomer mixes, then adds 0.5Kg ammonium persulfate initiator, stirs.
Step 3. polyreaction
Being added in step 1 to be equipped with by the oil-phase solution prepared prepares in the reactor of aqueous phase, and then from 100 DEG C of reaction 10h, reaction terminates rear centrifugal, and drying obtains product.Be numbered SX-3.
Comparative example 1
Only adopt polycarbonate to be one-component, production code member is SX-4.
Embodiment 4
Light diffusing particles 1 part obtained in embodiment 1-3 and comparative example 1,0.3 part, oxidation inhibitor, carry out pre-dispersed with diffusant, after adding polymethylmethacrylate 100 parts, transfer in low speed mixer and stir, mix rear twin screw extruder melt blending, granulation, finally by injection moulding machine injection moulding light diffusing sheet.
Optic test
Use transmittance/mist degree tester (EEL57D, Shanghai precision instrument company limited), test by GB/T2410-2008.
| Sample number into spectrum | Transmittance % |
| SX-1 | 82 |
| SX-2 | 80 |
| SX-3 | 87 |
| SX-4 | 69 |
Visible, because SX-4 is without surface treatment, disperse uneven in PC plate, cause transmittance low.Light diffusing particles through surface aggregate modification does not then have dispersion inequality, and the shortcomings such as reunion, transmittance is higher.
Claims (1)
1. a preparation for polycarbonate light diffusing agent, is characterized in that comprising the following steps:
The preparation of step 1. aqueous phase
By weight, add 1000 parts of water in a kettle., 0.5-2 part emulsifying agent (preferably 1 part), stirs;
Described emulsifying agent comprises ammonium lauryl sulfate, Sodium dodecylbenzene sulfonate, cetyl benzenesulfonic acid sodium, B-53, Voranol EP 2001 sodium sulfate and paraffin sulfonate, Perfluorocaprylic Acid sylvite or ammonium salt and the pungent sulfonate of perfluor alkane.
The preparation of step 2. oil phase
By weight, by 100 parts of polycarbonate powders, 0.5-3 part glycidyl methacrylate, 0.5-3 part tertiary ethylene carbonate, 0.1-1 part allyloxy trimethyl silane mixes, then adds 0.05-0.5 part initiator, stirs;
Step 3. polyreaction
Being added in step 1 to be equipped with by the oil-phase solution prepared prepares in the reactor of aqueous phase, passes into, and then from 70-100 DEG C of reaction 8-20h, reaction terminates rear centrifugal, and drying obtains product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510943464.0A CN105461864A (en) | 2015-12-18 | 2015-12-18 | Preparation of polycarbonate photodiffusion agent |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510943464.0A CN105461864A (en) | 2015-12-18 | 2015-12-18 | Preparation of polycarbonate photodiffusion agent |
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| CN105461864A true CN105461864A (en) | 2016-04-06 |
Family
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| CN201510943464.0A Withdrawn CN105461864A (en) | 2015-12-18 | 2015-12-18 | Preparation of polycarbonate photodiffusion agent |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114395238A (en) * | 2021-12-29 | 2022-04-26 | 浙江普利特新材料有限公司 | Special light-diffusion PC bulb material for improving laser marking effect and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101824238A (en) * | 2009-12-09 | 2010-09-08 | 广州市创至峰塑料制品科技有限公司 | Surface treatment method for powder composition of optical diffusion plastic |
| CN102099400A (en) * | 2008-05-21 | 2011-06-15 | 东丽株式会社 | Method for producing polymer fine particle |
| CN105131197A (en) * | 2015-09-24 | 2015-12-09 | 浙江衢州万能达科技有限公司 | Preparation method of polycarbonate photodiffusion material |
-
2015
- 2015-12-18 CN CN201510943464.0A patent/CN105461864A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102099400A (en) * | 2008-05-21 | 2011-06-15 | 东丽株式会社 | Method for producing polymer fine particle |
| CN101824238A (en) * | 2009-12-09 | 2010-09-08 | 广州市创至峰塑料制品科技有限公司 | Surface treatment method for powder composition of optical diffusion plastic |
| CN105131197A (en) * | 2015-09-24 | 2015-12-09 | 浙江衢州万能达科技有限公司 | Preparation method of polycarbonate photodiffusion material |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114395238A (en) * | 2021-12-29 | 2022-04-26 | 浙江普利特新材料有限公司 | Special light-diffusion PC bulb material for improving laser marking effect and preparation method thereof |
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Address after: 432000 Xiaogan province hi tech Zone, the sound of the village of Southern District convenience Road, building No. five, building 91, No. Applicant after: Wang Jinming Address before: 432000 Hubei city of Xiaogan province high tech Zone Danyang District Community Lisi mall two Room 201 Applicant before: Wang Jinming |
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Address after: 432000 Hubei city of Xiaogan Province Office of the Danyang high tech Zone Lisi District 11 building a commercial street Applicant after: Wang Jinming Address before: 432000 Xiaogan province hi tech Zone, the sound of the village of Southern District convenience Road, building No. five, building 91, No. Applicant before: Wang Jinming |
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Address after: 322000 Zhejiang province Yiwu City Binwang zipper Street 5 District No. 3 room 602 Applicant after: Wang Jinming Address before: 432000 Hubei city of Xiaogan Province Office of the Danyang high tech Zone Lisi District 11 building a commercial street Applicant before: Wang Jinming |
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Application publication date: 20160406 |