CN109553858A - A kind of PP diffuser plate - Google Patents
A kind of PP diffuser plate Download PDFInfo
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- CN109553858A CN109553858A CN201811484263.9A CN201811484263A CN109553858A CN 109553858 A CN109553858 A CN 109553858A CN 201811484263 A CN201811484263 A CN 201811484263A CN 109553858 A CN109553858 A CN 109553858A
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- China
- Prior art keywords
- diffuser plate
- raw material
- optical grade
- master batch
- light
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- 230000003287 optical effect Effects 0.000 claims abstract description 39
- 239000004594 Masterbatch (MB) Substances 0.000 claims abstract description 36
- 239000002994 raw material Substances 0.000 claims abstract description 34
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 31
- 239000000314 lubricant Substances 0.000 claims abstract description 25
- 238000002360 preparation method Methods 0.000 claims abstract description 24
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 23
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 23
- 239000004611 light stabiliser Substances 0.000 claims abstract description 23
- 239000006096 absorbing agent Substances 0.000 claims abstract description 20
- 238000002156 mixing Methods 0.000 claims description 22
- 238000002844 melting Methods 0.000 claims description 19
- 230000008018 melting Effects 0.000 claims description 19
- 238000001125 extrusion Methods 0.000 claims description 17
- -1 bis- tertiary amyl phenyl Chemical group 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 13
- 239000002245 particle Substances 0.000 claims description 13
- NAQMVNRVTILPCV-UHFFFAOYSA-N hexane-1,6-diamine Chemical compound NCCCCCCN NAQMVNRVTILPCV-UHFFFAOYSA-N 0.000 claims description 12
- 238000005303 weighing Methods 0.000 claims description 12
- 230000008569 process Effects 0.000 claims description 11
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 claims description 7
- 239000012964 benzotriazole Substances 0.000 claims description 7
- 238000009792 diffusion process Methods 0.000 claims description 5
- 238000010622 cold drawing Methods 0.000 claims description 4
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 4
- KGRVJHAUYBGFFP-UHFFFAOYSA-N 2,2'-Methylenebis(4-methyl-6-tert-butylphenol) Chemical compound CC(C)(C)C1=CC(C)=CC(CC=2C(=C(C=C(C)C=2)C(C)(C)C)O)=C1O KGRVJHAUYBGFFP-UHFFFAOYSA-N 0.000 claims description 3
- KZTYYGOKRVBIMI-UHFFFAOYSA-N S-phenyl benzenesulfonothioate Natural products C=1C=CC=CC=1S(=O)(=O)C1=CC=CC=C1 KZTYYGOKRVBIMI-UHFFFAOYSA-N 0.000 claims description 3
- 150000002148 esters Chemical class 0.000 claims description 3
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 2
- 235000019260 propionic acid Nutrition 0.000 claims description 2
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 claims description 2
- 238000005469 granulation Methods 0.000 claims 1
- 230000003179 granulation Effects 0.000 claims 1
- 238000005461 lubrication Methods 0.000 claims 1
- 229940124543 ultraviolet light absorber Drugs 0.000 claims 1
- 239000000463 material Substances 0.000 description 14
- 238000010348 incorporation Methods 0.000 description 10
- 239000000243 solution Substances 0.000 description 8
- 238000002834 transmittance Methods 0.000 description 8
- 238000001816 cooling Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000000155 melt Substances 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000003595 mist Substances 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 150000003851 azoles Chemical class 0.000 description 2
- 125000005605 benzo group Chemical group 0.000 description 2
- 235000013339 cereals Nutrition 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 1
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 1
- CAPNUXMLPONECZ-UHFFFAOYSA-N 3-(3,5-ditert-butyl-2-hydroxyphenyl)propanoic acid Chemical compound CC(C)(C)C1=CC(CCC(O)=O)=C(O)C(C(C)(C)C)=C1 CAPNUXMLPONECZ-UHFFFAOYSA-N 0.000 description 1
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 241000127225 Enceliopsis nudicaulis Species 0.000 description 1
- 206010054949 Metaplasia Diseases 0.000 description 1
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 1
- 239000005642 Oleic acid Substances 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 125000002252 acyl group Chemical group 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005562 fading Methods 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 150000002432 hydroperoxides Chemical class 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 1
- 230000001795 light effect Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- 230000015689 metaplastic ossification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000037361 pathway Effects 0.000 description 1
- 238000006552 photochemical reaction Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 230000027772 skotomorphogenesis Effects 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/22—Compounding polymers with additives, e.g. colouring using masterbatch techniques
- C08J3/226—Compounding polymers with additives, e.g. colouring using masterbatch techniques using a polymer as a carrier
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/02—Diffusing elements; Afocal elements
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/10—Homopolymers or copolymers of propene
- C08J2323/12—Polypropene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/10—Homopolymers or copolymers of propene
- C08J2423/12—Polypropene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2425/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Derivatives of such polymers
- C08J2425/02—Homopolymers or copolymers of hydrocarbons
- C08J2425/04—Homopolymers or copolymers of styrene
- C08J2425/06—Polystyrene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2491/00—Characterised by the use of oils, fats or waxes; Derivatives thereof
- C08J2491/06—Waxes
-
- 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
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/17—Amines; Quaternary ammonium compounds
- C08K5/18—Amines; Quaternary ammonium compounds with aromatically bound amino groups
-
- 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
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/34—Heterocyclic compounds having nitrogen in the ring
- C08K5/3412—Heterocyclic compounds having nitrogen in the ring having one nitrogen atom in the ring
- C08K5/3432—Six-membered rings
- C08K5/3435—Piperidines
-
- 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
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/34—Heterocyclic compounds having nitrogen in the ring
- C08K5/3467—Heterocyclic compounds having nitrogen in the ring having more than two nitrogen atoms in the ring
- C08K5/3472—Five-membered rings
- C08K5/3475—Five-membered rings condensed with carbocyclic rings
Landscapes
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The present invention relates to diffuser plate technical fields, more particularly it relates to a kind of PP diffuser plate and preparation method thereof.The first aspect of the invention provides a kind of PP diffuser plate, wherein preparing raw material includes optical grade PP, optics master batch, optical grade GPPS and lubricant；Wherein, the raw material for preparing of the optics master batch includes optical grade PP, organosilicon light diffusing agent, light stabilizer, ultraviolet absorbing agent, antioxidant and lubricant, and the partial size of the organosilicon light diffusing agent is 1~2 μm.
Description
Technical field
The present invention relates to diffuser plate technical fields, more particularly it relates to a kind of PP diffuser plate and preparation method thereof.
Background technique
Diffuser plate is greatly applied in direct-light-type backlight system used by LCD TV.Under normal circumstances,
Diffuser plate has the superperformances such as heat resistance, dimensional stability, mechanical strength, flame resistance, and has height light penetration, excellent
Shielding and durability, so that its light diffusion effect is reached optimum state.The prior art is on a surface of diffuser plate or two
Surface processes sags and crests or concave point striped, it sends out LED light point source of light for improving diffuser plate to the dispersion performance of light
The light of injection can homogenize after being launched by diffuser plate, and this technology is improved by changing the configuration of surface of diffuser plate
Diffuser plate is to the dispersion performance of light, although it has certain peptizaiton, it can form one kind on the surface of diffuser plate
The optical effect of atomization considerably reduces the refraction performance and light transmission of diffuser plate；The rigidity of another aspect PP diffuser plate
Poor, service life is limited, and its glass transition temperature in room temperature hereinafter, after there may be after PP diffusing plate molding
The problem of crystallization；In addition, PP diffuser plate is easier to xanthochromia during being used for a long time, seriously affect using quality.
For above-mentioned some problems, the present invention provides a kind of PP diffuser plate, with preferable mechanical strength and processing
Performance；In addition, the PP diffuser plate has suitable light transmittance and the screening performance to light source；And provided PP diffusion
Standby simple process, cost of material is lower, is suitble to industrialized production.
Summary of the invention
First aspect of the present invention provides a kind of PP diffuser plate, and preparing raw material includes optical grade PP, optics master batch, optical grade
GPPS and lubricant；Wherein, the raw material for preparing of the optics master batch includes optical grade PP, organosilicon light diffusing agent, light stabilization
Agent, ultraviolet absorbing agent, antioxidant and lubricant, the partial size of the organosilicon light diffusing agent are 1~2 μm.
As a preferred technical solution of the present invention, wherein calculate by weight, preparing raw material includes 80~150 parts
Optical grade PP, 5~10 parts of optics master batches, 1~10 part of optical grade GPPS and 0.2~1 part of lubricant.
As a preferred technical solution of the present invention, wherein calculate by weight, the raw material for preparing of optics master batch includes
70~130 parts of optical grade PP, 5~10 parts of organosilicon light diffusing agents, 0.1~0.5 part of light stabilizer, 0.01~0.1 part of ultraviolet light
Absorbent, 0.01~0.5 part of antioxidant and 0.2~1 part of lubricant.
As a preferred technical solution of the present invention, wherein light stabilizer is selected from bis- (2,2,6,6- tetramethyl -4- piperazines
Piperidinyl sebacic acid ester) and/or poly-succinic (4- hydroxyl -2,2,6,6- tetramethyl -1- piperidine ethanol) ester.
As a preferred technical solution of the present invention, wherein ultraviolet absorbing agent is selected from 2-, and (2 '-hydroxyls -5 '-are tertiary pungent
Base phenyl) benzotriazole, 2- hydroxyl -4- methoxyl group -5- diphenylsulfone ketone, 2- (bis- tertiary amyl phenyl of 2'- hydroxyl -3', 5'-)
Any one or more of combination of benzotriazole.
As a preferred technical solution of the present invention, wherein antioxidant is selected from N, and N '-is bis--(3- (3,5- di-t-butyls-
4- hydroxy phenyl) propiono) hexamethylene diamine, 2,2' methylene bis (4- methyl-6-tert-butylphenol), four (β-(the tertiary fourths of 3,5- bis-
Base -4- hydroxy phenyl) propionic acid) any one or more of combination of pentaerythritol ester.
The second aspect of the invention provides a kind of preparation method of PP diffuser plate, the preparation including optics master batch with
And two steps of the preparation of PP diffuser plate；Wherein, the preparation of optics master batch includes weighing mixing -1, raw material preheating drying -1, melting
Melt extrusion -1 and is granulated；The preparation of PP diffuser plate includes weighing mixing -2, raw material preheating dry -2 and melting extrusion -2.
As a preferred technical solution of the present invention, wherein include cold drawing process before being granulated；The partial size of its gained particle
For 0.4~3mm.
Third aspect of the present invention provides the application of the PP diffuser plate, is applied in LCD assembly.
As a preferred technical solution of the present invention, when the thickness of the PP diffuser plate is greater than 1mm, it is applied to less than 32
In very little LCD assembly.
Beneficial effects of the present invention: the PP diffuser plate containing particular optical master batch has while keeping suitable light transmittance
Good light source shielding, the PP diffuser plate also have preferable stiffening property and flatness；In addition, the specified particle diameter of optics master batch
The service performance of PP diffuser plate can be advanced optimized；Moreover, the preparation process of PP diffuser plate is simple, cost of material is lower, fits
Close industrialized production.
Specific embodiment
The first aspect of the invention provides a kind of PP diffuser plate, wherein preparing raw material includes optical grade PP, optics mother
Grain, optical grade GPPS and lubricant；Wherein, the raw material for preparing of the optics master batch includes optical grade PP, the diffusion of organosilicon light
Agent, light stabilizer, ultraviolet absorbing agent, antioxidant and lubricant, the partial size of the organosilicon light diffusing agent are 1~2 μm.
Preferably, it calculates by weight, the raw material for preparing of the PP diffuser plate includes 80~150 parts of optical grade PP, 5~10
Part optics master batch, 1~10 part of optical grade GPPS and 0.2~1 part of lubricant.
It is highly preferred that calculating by weight, the raw material for preparing of the PP diffuser plate includes 100 parts of optical grade PP, 8 parts of optics
Master batch, 6 parts of optical grade GPPS and 0.65 part of lubricant.
In one embodiment, the optical grade PP is purchased from Chen Shi plastics Co., Ltd in Yuyao City；It is right in the present invention
The purchase producer of optical grade PP is with no restrictions.
The optical grade PP has lower light transmittance, reduces the usage amount of light diffusing agent, to reduce industrial metaplasia
The cost of production.
In one embodiment, the optical grade GPPS, which is purchased from, reaches dongle 1050；The purchase of optical grade GPPS in the present invention
Buy producer with no restrictions.
In one embodiment, it calculates by weight, the raw material for preparing of the optics master batch includes 70~130 parts of optics
Grade PP, 5~10 parts of organosilicon light diffusing agents, 0.1~0.5 part of light stabilizer, 0.01~0.1 part of ultraviolet absorbing agent, 0.01~
0.5 part of antioxidant and 0.2~1 part of lubricant；Preferably, the raw material for preparing of the optics master batch includes 90~110 parts of optics
Grade PP, 7~9 parts of organosilicon light diffusing agents, 0.2~0.4 part of light stabilizer, 0.04~0.06 part of ultraviolet absorbing agent, 0.1~
0.3 part of antioxidant and 0.5~0.8 part of lubricant；It is highly preferred that the raw material for preparing of the optics master batch includes 100 parts of optics
Grade PP, 8 parts of organosilicon light diffusing agents, 0.3 part of light stabilizer, 0.05 part of ultraviolet absorbing agent, 0.25 part of antioxidant and 0.6 part
Lubricant.
Organosilicon light diffusing agent:
Organosilicon light diffusing agent belongs to the light diffusing agent of organic, is that one kind is connected with silicon oxygen bond, three-dimensional structure
This light diffusing agent sheet of polymer microballoon is added in the resin of unlike material as a kind of white powder, can be with a kind of subtle
Transparent glass sphere be uniformly dispersed in matrix, by the difference of the refractive index with different substrate materials, light source penetration into
Row refraction, changes the travelling route of light, achievees the purpose that even light and light transmission.Meets the needs of haze value and light transmittance simultaneously.
In a kind of real mode, the partial size of organosilicon light diffusing agent is 2 μm.
In one embodiment, organosilicon light diffusing agent be polysiloxanes, be purchased from Changxing, DF20A0, the present invention in not
To purchase, producer is particularly limited.
Applicants experimentally found that PP diffuser plate has preferable when the partial size of organosilicon light diffusing agent is 1~2 μm
Performance, this may be because when partial size be 1~2 μm when, particle distribution is uniform, and even light effect is preferable；And when its partial size is greater than 2
μm when, PP diffuser plate reduces the shielding of light source, this may be because when partial size is larger, in light source irradiation, machine silicon light
Diffusant is less to the change of light source exposure pathways, and anaclasis angle is smaller, and refraction number is less, and the dispersion of light, excessive effects subtract
Weak, therefore, PP diffuser plate reduces the shielding of light source；In addition, applicant also has been surprisingly found that, the stiffness of diffuser plate is reduced, is stuck up
Curvature improves, this may be that gap is biggish to answer because the organosilicon light diffusing agent of larger particles is formed in PP diffuser plate system
Power centrostigma, largely reduces the stiffening property of diffuser plate system, while reducing the irregularity degree of diffuser plate entirety.
Light stabilizer:
It can shield or absorb the energy of ultraviolet light to light stabilizer, quenching singlet oxygen and resolve into hydroperoxides non-
The functions such as active material make high molecular polymer under the radiation of light, can exclude or slow down photochemical reaction possibility, prevent or
Postpone the process of light aging, to achieve the purpose that extend high polymer product service life.
In one embodiment, the light stabilizer is selected from bis- (2,2,6,6- tetramethyl -4- piperidyl sebacic acid esters)
And/or poly-succinic (4- hydroxyl -2,2,6,6- tetramethyl -1- piperidine ethanol) ester；Preferably, the light stabilizer be it is bis- (2,
2,6,6- tetramethyl -4- piperidyl sebacic acid ester)；
The transmission of the visible light of bis- (the 2,2,6,6- tetramethyl -4- piperidyl sebacic acid esters) for wavelength in 425nm
Rate is greater than 98%；Its transmitance for wavelength in the visible light of 500nm is greater than 99%.
Ultraviolet absorbing agent:
Ultraviolet absorbing agent is a kind of light stabilizer, can absorb the ultraviolet part in sunlight and fluorescent light source, and in itself
It does not change again.Since, containing largely to the harmful ultraviolet light of colored objects, wavelength about 290-460 receives in sunray
Rice, these harmful ultraviolet lights make color molecule finally decompose colour fading by redox chemically.
In one embodiment, the ultraviolet absorbing agent is selected from 2- (2 '-hydroxyls -5 '-t-octyl phenyl) benzo three
Azoles, 2- hydroxyl -4- methoxyl group -5- diphenylsulfone ketone, in 2- (bis- tertiary amyl phenyl of 2'- hydroxyl -3', 5'-) benzotriazole
Any one or more combinations；Preferably, the ultraviolet absorbing agent is 2- (2 '-hydroxyls -5 '-t-octyl phenyl) benzo three
Azoles；
2- (2 '-hydroxyls-the 5 '-t-octyl phenyl) benzotriazole is greater than 98% for the transmitance of visible light thoroughly.
Antioxidant:
Antioxidant is a kind of chemical substance, in the presence of it is only a small amount of in polymeric system, so that it may delay or inhibit poly-
The progress of object oxidation process is closed, to prevent the aging of polymer and prolong its service life, be otherwise known as " anti-aging agent ".
In one embodiment, the antioxidant is selected from N, and N '-is bis--(3- (3,5- di-tert-butyl-hydroxy phenyl) third
Acyl group) hexamethylene diamine, 2,2' methylene bis (4- methyl-6-tert-butylphenol), four (β-(3,5- di-tert-butyl-hydroxy phenyl)
Propionic acid) any one or more of combination of pentaerythritol ester；Preferably, the antioxidant is N, N '-is bis--(3- (3,5- bis- uncles
Butyl -4- hydroxy phenyl) propiono) hexamethylene diamine.
The N, N '-be bis--(3- (3,5- di-tert-butyl-hydroxy phenyl) propiono) hexamethylene diamine for wavelength in 425nm
The transmitance 97% of visible light；Its for wavelength 500nm visible light transmitance 98%.
In one embodiment, the lubricant be selected from any one of silicone oil, fatty acid amide, oleic acid, white oil or
A variety of combinations；Preferably, the lubricant be white oil, be purchased from Fuda petrochemical industry, No. 15.
The applicant is found through experiments that the PP diffuser plate that the present invention uses has good resisting etiolation ability, in addition, Shen
It asks someone also it was unexpectedly observed that PP diffuser plate has appropriate light transmittance and the screening performance to light source, this is possible as
Under the collective effect of the molecular structure of light stabilizer, ultraviolet absorbing agent and antioxidant, PP diffuser plate is made to have preferable light
While the shielding in source, a stability of transmitance is kept；On the other hand, PP diffuser plate stiffening property with higher and compared with
Low angularity, this may be because the addition of these small molecules improves active force between molecule, meanwhile, improve
Homogeneity in process between melt, to improve the flatness and stiffening property of diffuser plate entirety.
The second aspect of the present invention provides a kind of preparation method of PP diffuser plate, preparation including optics master batch and
Two steps of preparation of PP diffuser plate.
In one embodiment, the preparation of optics master batch includes weighing mixing -1, raw material preheating drying -1, melting and squeeze
Out -1, the process being granulated.
In one embodiment, mixing velocity is 3~8m/s when weighing mixing -1, and incorporation time is 20~50min；It is excellent
Selection of land, the mixing velocity are 5~6m/s, and incorporation time is 30~40min；It is highly preferred that the mixing velocity is 5.5m/s,
Incorporation time is 35min.
In one embodiment, the temperature of raw material preheating dry -1 is 50~80 DEG C, and the time is 1~3h；Preferably, institute
The temperature for stating raw material preheating dry -1 is 65 DEG C, time 2h.
In one embodiment, the temperature of melting extrusion -1 is 150~210 DEG C.
Preferably, in one embodiment, melting extrusion -1 includes 8 stages.
It is highly preferred that in one embodiment, the temperature in 8 stages of melting extrusion -1 be followed successively by 155 DEG C, 162 DEG C,
171 DEG C, 180 DEG C, 190 DEG C, 195 DEG C, 195 DEG C and 200 DEG C.
It in one embodiment, include cold drawing process before being granulated；Preferably, cold drawing process is by the tie rod of melting extrusion
Water is cooling；It is highly preferred that the temperature of the water is 25~30 DEG C.
In one embodiment, the partial size for being granulated gained particle is 0.4~3mm；Preferably, the partial size of the particle is
1~2.5mm；It is highly preferred that the partial size of the particle is 2.1mm.
In one embodiment, the preparation of PP diffuser plate includes weighing mixing -2, raw material preheating drying -2, melting and squeeze
Out -2.
In one embodiment, mixing velocity is 3~10m/s when weighing mixing -2, and incorporation time is 20~60min；
Preferably, the mixing velocity is 5~8m/s, and incorporation time is 30~50min；It is highly preferred that the mixing velocity is 7m/s,
Incorporation time is 40min.
In one embodiment, the temperature of raw material preheating dry -2 is 60~90 DEG C, and the time is 1~3h；Preferably, institute
The temperature for stating raw material preheating dry -2 is 75 DEG C, time 2h.
In one embodiment, the temperature of melting extrusion -2 is 160~210 DEG C.
Preferably, in one embodiment, melting extrusion -2 includes 8 stages.
It is highly preferred that in one embodiment, the temperature in 8 stages of melting extrusion -2 be followed successively by 160 DEG C, 200 DEG C,
210 DEG C, 210 DEG C, 170 DEG C, 185 DEG C, 195 DEG C and 195 DEG C.
In one embodiment, -2 obtained material of melting extrusion cooling and shaping in air.
Preferably, in one embodiment, the preparation process of the PP diffuser plate are as follows:
(1) preparation of optics master batch
1. weighing mixing -1: mixing velocity 5.5m/s, incorporation time 35min according to corresponding parts by weight；
2. the raw material preheating of step 1. dry -1: temperature is 65 DEG C, time 2h；
3. 2. resulting material melts squeeze out -1 to step: the temperature in 7 stages of melting extrusion -1 is followed successively by 155 DEG C, 162
DEG C, 171 DEG C, 180 DEG C, 190 DEG C, 195 DEG C, 195 DEG C and 200 DEG C；
4. 3. gained tie rod water is cooling for step: the temperature of water is 25~30 DEG C；
5. 4. obtained material is granulated step: the partial size for being granulated gained particle is 2.1mm；
(2) preparation of PP diffuser plate
1. weighing mixing -2: mixing velocity 7m/s, incorporation time 40min according to corresponding parts by weight；
2. the raw material preheating of step 1. dry -2: temperature is 75 DEG C, time 2h；
3. 2. resulting material melts squeeze out -2 to step: the temperature in 7 stages of melting extrusion -2 is followed successively by 160 DEG C, 200
DEG C, 210 DEG C, 210 DEG C, 170 DEG C, 185 DEG C, 195 DEG C and 195 DEG C；
4. step 3. obtained material cooling and shaping in air.
By experiment it was unexpectedly observed that during preparing PP diffuser plate, the partial size of optics master batch is to diffuser plate
Performance has some influences, and when master batch partial size is 0.4~3mm, diffuser plate has good light transmittance and light source shielding, endures
Property and flatness, this may be because when master batch partial size is in range, and optics master batch can prepare the good phase of material with other
Hold, and can more fully melt during melt extrusion and homogeneous with diffuser plate System forming, and when partial size is too small, it is female
Grain is possible to adequately to melt in melting process, shows to form defect in diffuser plate, so that diffuser plate quality be made to drop
It is low；And when master batch is greater than 3mm, the dispersibility of master batch and system reduces, it is possible to which it is insufficient to there is melting, thus in diffuser plate
Surface forms defect, reduces the quality of diffuser plate.
Third aspect of the present invention provides the application of the PP diffuser plate, is applied in LCD assembly.
As a preferred technical solution of the present invention, when the thickness of the PP diffuser plate is greater than 1mm, it is applied to less than 32
In very little LCD assembly.
Organosilicon light diffusing agent containing specified particle diameter, specific antioxidant, light stabilizer and purple provided by the invention
The PP diffuser plate of ultraviolet absorbers has appropriate transmitance and light source shielding, also has preferable stiffening property and surface flat
Whole degree；And the specified particle diameter of optics master batch is conducive to further increase the service performance of PP diffuser plate in process.
Embodiment 1
The embodiment of the present invention 1 provides a kind of PP diffuser plate, calculates by weight, and preparing raw material includes 100 parts of optics
Grade PP, 8 parts of optics master batches, 6 parts of optical grade GPPS and 0.65 part of lubricant；
The lubricant is white oil；
The optics master batch includes 100 parts of optical grade PP, 8 parts of organosilicon light diffusing agents, 0.3 part of light stabilizer, 0.05 part
Ultraviolet absorbing agent, 0.25 part of antioxidant and 0.6 part of lubricant；
The light stabilizer is bis- (2,2,6,6- tetramethyl -4- piperidyl sebacic acid esters)；
The ultraviolet absorbing agent is 2- (2 '-hydroxyls -5 '-t-octyl phenyl) benzotriazole；
The antioxidant is N, N '-is bis--(3- (3,5- di-tert-butyl-hydroxy phenyl) propiono) hexamethylene diamine；
The partial size of the organosilicon light diffusing agent is 2 μm, is purchased from Changxing, DF20A0；
The PP diffuser plate the preparation method comprises the following steps:
(2) preparation of optics master batch
1. weighing mixing -1: mixing velocity 5.5m/s, incorporation time 35min according to corresponding parts by weight；
2. the raw material preheating of step 1. dry -1: temperature is 65 DEG C, time 2h；
3. 2. resulting material melts squeeze out -1 to step: the temperature in 7 stages of melting extrusion -1 is followed successively by 155 DEG C, 162
DEG C, 171 DEG C, 180 DEG C, 190 DEG C, 195 DEG C, 195 DEG C and 200 DEG C；
4. 3. gained tie rod water is cooling for step: the temperature of water is 25~30 DEG C；
5. 4. obtained material is granulated step: the partial size for being granulated the particle of gained optics master batch is 2.1mm；
(2) preparation of PP diffuser plate
1. weighing mixing -2: mixing velocity 7m/s, incorporation time 40min according to corresponding parts by weight；
2. the raw material preheating of step 1. dry -2: temperature is 75 DEG C, time 2h；
3. 2. resulting material melts squeeze out -2 to step: the temperature in 7 stages of melting extrusion -2 is followed successively by 160 DEG C, 200
DEG C, 210 DEG C, 210 DEG C, 170 DEG C, 185 DEG C, 195 DEG C and 195 DEG C；
4. step 3. obtained material cooling and shaping in air.
Embodiment 2
The embodiment of the present invention 2 provides a kind of PP diffuser plate, specific embodiment with embodiment 1, the difference is that,
It calculates by weight, the raw material for preparing of the PP diffuser plate includes 80 parts of optical grade PP, 5 parts of optics master batches, 1 part of optical grade GPPS
And 0.2 part of lubricant；
The optics master batch includes 70 parts of optical grade PP, 5 parts of organosilicon light diffusing agents, 0.1 part of light stabilizer, 0.01 part of purple
Ultraviolet absorbers, 0.01 part of antioxidant and 0.2 part of lubricant.
Embodiment 3
The embodiment of the present invention 3 provides a kind of PP diffuser plate, specific embodiment with embodiment 1, the difference is that,
It calculates by weight, the raw material for preparing of the PP diffuser plate includes 150 parts of optical grade PP, 10 parts of optics master batches, 10 parts of optical grades
GPPS and 1 part of lubricant；
The optics master batch includes 130 parts of optical grade PP, 10 parts of organosilicon light diffusing agents, 0.5 part of light stabilizer, 0.1 part
Ultraviolet absorbing agent, 0.5 part of antioxidant and 1 part of lubricant.
Embodiment 4
The embodiment of the present invention 4 provides a kind of PP diffuser plate, specific embodiment with embodiment 1, the difference is that,
The content of the optical grade GPPS is 0.
Embodiment 5
The embodiment of the present invention 5 provides a kind of PP diffuser plate, specific embodiment with embodiment 1, the difference is that,
The content of the ultraviolet absorbing agent is 0.
Embodiment 6
The embodiment of the present invention 6 provides a kind of PP diffuser plate, specific embodiment with embodiment 1, the difference is that,
The content of the light stabilizer is 0.
Embodiment 7
The embodiment of the present invention 7 provides a kind of PP diffuser plate, specific embodiment with embodiment 1, the difference is that,
The content of the antioxidant is 0.
Embodiment 8
The embodiment of the present invention 8 provides a kind of PP diffuser plate, specific embodiment with embodiment 1, the difference is that,
The partial size of the organosilicon light diffusing agent is 3 μm.
Embodiment 9
The embodiment of the present invention 9 provides a kind of PP diffuser plate, specific embodiment with embodiment 1, the difference is that,
The partial size of the particle of the optics master batch is 5mm.
Performance test
1. light transmittance: carrying out light transmittance test by WGT-S；
2. mist degree: carrying out mist degree test by NDH-5000；
3. stiffness: cutting long 30cm from Examples 1 to 9 gained PP diffuser plate, the sample of wide 1cm, at 85 DEG C, 5min is warm
After sizing, 5kg counterweight is pushed down to one end of diffuser plate, other end hangs on the side of horizontal table top, measures plate end and hangs down
The horizontal distance of straight desktop is stiffness.The horizontal distance that measurement obtains is longer, i.e., numerical value is higher, illustrates the stiffness of PP diffuser plate
Better.
4. angularity: by the light diffusing sheet of the exposure 168 hours under 85 DEG C of 95%RH atmosphere as setting between 2.5cm etc.
Every ground be arranged with 6 have 5300Cd/cm246 inches of the cold-cathode tube of luminous energy directly on lower back light unit, make picture part
It is that backlight side is assembled at the position apart from cold-cathode tube 30mm with the third laminate 103 in plumbness.In turn, exist
The interval of 1.0mm is set on the outside (side opposite with backlight side) of light diffusing sheet, is provided with diameter 5mm using at 1 point of central portion
The thickness 1.5mm glass capsulation in hole is kept.The glass of measurement at this time is at a distance from diffuser plate (initial value).Make cold cathode later
Continuous lighting is managed, measures the variation of the light diffusing sheet after 5 hours with the unit of 0.1mm using dial ga(u)ge, and is remembered
Record warpage maximum value.
1 the performance test results of table
As shown in Table 1, the PP diffusion prepared by the present invention containing light stabilizer, ultraviolet absorbing agent, antioxidant is provided with
Very high mist degree and optical stability, and have good shielding to light source；In addition, PP diffuser plate provided by the invention have compared with
High hardness and good service performance, the use quality that can have been kept in a long time.
Example above-mentioned is merely illustrative, and is used to explain the present invention some features of the method.Appended right is wanted
The range as wide as possible for being intended to require to be contemplated that is sought, and embodiments as presented herein is only according to all possible implementation
The explanation of the embodiment of the combined selection of example.Therefore, the purpose of applicant is that the attached claims are not illustrated this hair
The exemplary selectional restriction of bright feature.Some numberical ranges used also include sub- model in the claims
It encloses, the variation in these ranges should also be construed to be covered by the attached claims in the conceived case.
Claims (10)
1. a kind of PP diffuser plate, which is characterized in that preparing raw material includes optical grade PP, optics master batch, optical grade GPPS and profit
Lubrication prescription；Wherein, the raw material for preparing of the optics master batch includes optical grade PP, organosilicon light diffusing agent, light stabilizer, ultraviolet light suction
Agent, antioxidant and lubricant are received, the partial size of the organosilicon light diffusing agent is 1~2 μm.
2. PP diffuser plate according to claim 1, which is characterized in that calculate by weight, preparing raw material includes 80~150 parts
Optical grade PP, 5~10 parts of optics master batches, 1~10 part of optical grade GPPS and 0.2~1 part of lubricant.
3. PP diffuser plate according to claim 1, which is characterized in that calculate by weight, optics master batch prepares raw material packet
Include 70~130 parts of optical grade PP, 5~10 parts of organosilicon light diffusing agents, 0.1~0.5 part of light stabilizer, 0.01~0.1 part it is ultraviolet
Light absorbers, 0.01~0.5 part of antioxidant and 0.2~1 part of lubricant.
4. PP diffuser plate according to claim 1, which is characterized in that light stabilizer is selected from bis- (2,2,6,6- tetramethyl -4- piperazines
Piperidinyl sebacic acid ester) and/or poly-succinic (4- hydroxyl -2,2,6,6- tetramethyl -1- piperidine ethanol) ester.
5. PP diffuser plate according to claim 1, which is characterized in that ultraviolet absorbing agent is selected from 2-, and (2 '-hydroxyls -5 '-are tertiary pungent
Base phenyl) benzotriazole, 2- hydroxyl -4- methoxyl group -5- diphenylsulfone ketone, 2- (bis- tertiary amyl phenyl of 2'- hydroxyl -3', 5'-)
Any one or more of combination of benzotriazole.
6. PP diffuser plate according to claim 1, which is characterized in that antioxidant is selected from N, and N '-is bis--(3- (3,5- bis- tertiary fourths
Base -4- hydroxy phenyl) propiono) hexamethylene diamine, 2,2' methylene bis (4- methyl-6-tert-butylphenol), four (β-(bis- uncles of 3,5-
Butyl -4- hydroxy phenyl) propionic acid) any one or more of combination of pentaerythritol ester.
7. a kind of preparation method containing PP diffuser plate described in claim 1~6, which is characterized in that the system including optics master batch
Standby and PP diffuser plate two steps of preparation；Wherein, the preparation of optics master batch includes weighing mixing -1, raw material preheating drying -
1, melting extrusion -1 and granulation；The preparation of PP diffuser plate includes weighing mixing -2, raw material preheating dry -2 and melting extrusion -
2。
8. the preparation method of PP diffuser plate according to claim 7, which is characterized in that include cold drawing process before being granulated；Its institute
The partial size for obtaining particle is 0.4~3mm.
9. the application of PP diffuser plate according to claims 1 to 6, which is characterized in that using in LCD assembly.
10. the application of PP diffuser plate according to claim 9, which is characterized in that when the PP diffusion plate thickness is greater than 1mm,
Applied in the LCD assembly less than 32 cun.
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