CN111117201B - High-hardness PC (polycarbonate) photodiffusion material and preparation method thereof - Google Patents
High-hardness PC (polycarbonate) photodiffusion material and preparation method thereof Download PDFInfo
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- CN111117201B CN111117201B CN202010117304.1A CN202010117304A CN111117201B CN 111117201 B CN111117201 B CN 111117201B CN 202010117304 A CN202010117304 A CN 202010117304A CN 111117201 B CN111117201 B CN 111117201B
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- 239000000463 material Substances 0.000 title claims abstract description 53
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- 239000004417 polycarbonate Substances 0.000 title description 32
- 229920000515 polycarbonate Polymers 0.000 title description 31
- 239000000945 filler Substances 0.000 claims abstract description 41
- 239000000314 lubricant Substances 0.000 claims abstract description 29
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 28
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 28
- 239000004611 light stabiliser Substances 0.000 claims abstract description 26
- 239000012745 toughening agent Substances 0.000 claims abstract description 25
- OCKPCBLVNKHBMX-UHFFFAOYSA-N butylbenzene Chemical compound CCCCC1=CC=CC=C1 OCKPCBLVNKHBMX-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 18
- 239000011347 resin Substances 0.000 claims abstract description 18
- 229920005989 resin Polymers 0.000 claims abstract description 18
- ZCZFEIZSYJAXKS-UHFFFAOYSA-N [3-hydroxy-2,2-bis(hydroxymethyl)propyl] prop-2-enoate Chemical compound OCC(CO)(CO)COC(=O)C=C ZCZFEIZSYJAXKS-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229920012699 PC light diffusion Polymers 0.000 claims abstract description 14
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 91
- 238000002156 mixing Methods 0.000 claims description 31
- 238000009792 diffusion process Methods 0.000 claims description 25
- 239000010702 perfluoropolyether Substances 0.000 claims description 23
- 239000005543 nano-size silicon particle Substances 0.000 claims description 19
- 235000012239 silicon dioxide Nutrition 0.000 claims description 19
- 229920001577 copolymer Polymers 0.000 claims description 12
- 238000001816 cooling Methods 0.000 claims description 11
- 238000001035 drying Methods 0.000 claims description 11
- 238000002844 melting Methods 0.000 claims description 11
- 230000008018 melting Effects 0.000 claims description 11
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 10
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 10
- 230000010355 oscillation Effects 0.000 claims description 10
- 239000002245 particle Substances 0.000 claims description 10
- ISDGWTZFJKFKMO-UHFFFAOYSA-N 2-phenyl-1,3-dioxane-4,6-dione Chemical compound O1C(=O)CC(=O)OC1C1=CC=CC=C1 ISDGWTZFJKFKMO-UHFFFAOYSA-N 0.000 claims description 9
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 claims description 9
- 229920000205 poly(isobutyl methacrylate) Polymers 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 8
- 229920001296 polysiloxane Polymers 0.000 claims description 5
- 239000004793 Polystyrene Substances 0.000 claims description 4
- -1 polysiloxane Polymers 0.000 claims description 4
- 229920002223 polystyrene Polymers 0.000 claims description 4
- 239000000377 silicon dioxide Substances 0.000 claims description 4
- OZDOQMMXEACZAA-NRFIWDAESA-L (z)-4-butoxy-4-oxobut-2-enoate;dibutyltin(2+) Chemical compound CCCCOC(=O)\C=C/C(=O)O[Sn](CCCC)(CCCC)OC(=O)\C=C/C(=O)OCCCC OZDOQMMXEACZAA-NRFIWDAESA-L 0.000 claims description 3
- JYRZXGFYZMDKCS-UHFFFAOYSA-N 2-[2-(1,3-thiazol-2-yl)pyridin-3-yl]prop-2-enenitrile Chemical compound S1C(=NC=C1)C1=NC=CC=C1C(C#N)=C JYRZXGFYZMDKCS-UHFFFAOYSA-N 0.000 claims description 3
- 229920002125 Sokalan® Polymers 0.000 claims description 3
- 235000021355 Stearic acid Nutrition 0.000 claims description 3
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 3
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 3
- SSDSCDGVMJFTEQ-UHFFFAOYSA-N octadecyl 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)CCC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 SSDSCDGVMJFTEQ-UHFFFAOYSA-N 0.000 claims description 3
- 239000004584 polyacrylic acid Substances 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 239000008117 stearic acid Substances 0.000 claims description 3
- 239000004709 Chlorinated polyethylene Substances 0.000 claims description 2
- JKIJEFPNVSHHEI-UHFFFAOYSA-N Phenol, 2,4-bis(1,1-dimethylethyl)-, phosphite (3:1) Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC=C1OP(OC=1C(=CC(=CC=1)C(C)(C)C)C(C)(C)C)OC1=CC=C(C(C)(C)C)C=C1C(C)(C)C JKIJEFPNVSHHEI-UHFFFAOYSA-N 0.000 claims description 2
- 239000004698 Polyethylene Substances 0.000 claims description 2
- 239000002174 Styrene-butadiene Substances 0.000 claims description 2
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 claims description 2
- 229920000573 polyethylene Polymers 0.000 claims description 2
- 239000011115 styrene butadiene Substances 0.000 claims description 2
- 229920003048 styrene butadiene rubber Polymers 0.000 claims description 2
- 238000002834 transmittance Methods 0.000 abstract description 9
- 150000001875 compounds Chemical class 0.000 abstract description 2
- TXQVDVNAKHFQPP-UHFFFAOYSA-N [3-hydroxy-2,2-bis(hydroxymethyl)propyl] octadecanoate Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC(CO)(CO)CO TXQVDVNAKHFQPP-UHFFFAOYSA-N 0.000 description 8
- 238000012360 testing method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 239000004576 sand Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- RKISUIUJZGSLEV-UHFFFAOYSA-N n-[2-(octadecanoylamino)ethyl]octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(=O)NCCNC(=O)CCCCCCCCCCCCCCCCC RKISUIUJZGSLEV-UHFFFAOYSA-N 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000000149 argon plasma sintering Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 description 1
- 239000008116 calcium stearate Substances 0.000 description 1
- 235000013539 calcium stearate Nutrition 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- 239000004033 plastic Substances 0.000 description 1
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- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 1
Classifications
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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
- C08L69/00—Compositions of polycarbonates; Compositions of derivatives of polycarbonates
-
- 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
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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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)
- Compositions Of Macromolecular Compounds (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
The invention belongs to the field of photodiffusion materials, and discloses a high-hardness PC photodiffusion material and a preparation method thereof. The high-hardness PC light diffusion material comprises, by weight, 90-100 parts of PC, 3-10 parts of butylbenzene transparent impact-resistant resin, 5-10 parts of filler, 5-12 parts of toughening agent, 0.8-2 parts of light stabilizer, 0.8-2 parts of light diffusing agent, 0.3-1.0 part of pentaerythritol acrylate, 0.5-2 parts of lubricant and 0.5-2 parts of antioxidant. According to the high-hardness PC photodiffusion material, the components are optimized, the compound filler is added, and on the basis of ensuring that the haze is more than 90% and the light transmittance is more than 85%, the internal structure of the PC photodiffusion material is improved, so that the PC photodiffusion material has excellent mechanical property and scratch resistance, and the surface pencil hardness can reach 3H.
Description
Technical Field
The invention relates to the field of light diffusion materials, in particular to a high-hardness PC light diffusion material and a preparation method thereof.
Background
The light diffusion is realized by chemical or physical means, and the physical phenomena of refraction, reflection and scattering are generated when light encounters two media with different refractive indexes during the traveling process, so that the traveling route of the light is changed, and the effect of optical diffusion is generated by fully dispersing and coloring the incident light. The current preparation method of light diffusion materials is to add light diffusion agents into resin materials such as Polycarbonate (PC), polymethyl methacrylate and polystyrene to achieve the purpose of light scattering. The light diffusion material is widely applied to liquid crystal display and LED illumination and imaging display systems, and the main technical parameters comprise light transmittance and haze, wherein the light transmittance represents the total utilization rate of the light diffusion material to incident light, and the haze represents the degree of deviation of the incident light from the original incident direction, so that the light diffusion material can be used for representing the diffusion degree of the light diffusion material to the incident light.
The PC is widely used in the field of LED lamp shades due to excellent weather resistance, high impact resistance, excellent electrical insulation, high light transmittance and less light energy loss. However, the contradiction between high light transmittance and high haze of the light diffusion PC material is not well solved, and when the high haze is maintained, the light transmittance is usually reduced by about 20%, and the light diffusion PC material cannot simultaneously have the high light transmittance and the high haze. In addition, the hardness of the pencil on the surface of the PC material is only 2B grade, and due to the characteristics of the material, the surface is easy to scratch when being touched by hard objects such as nails and the like, so that the appearance is seriously influenced, the light diffusion effect is influenced, and the light diffusion PC material has more limitations in use.
Disclosure of Invention
The PC photodiffusion material has both high light transmittance and high haze, and has high surface hardness and scratch resistance, thereby meeting high-end requirements of the photoelectric industry.
In order to achieve the purpose of the invention, the high-hardness PC light diffusion material comprises PC, butylbenzene transparent impact-resistant resin, filler, a toughening agent, a light stabilizer, a light diffusion agent, pentaerythritol acrylate, a lubricant and an antioxidant.
Preferably, the high-hardness PC light diffusion material comprises, by weight, 90-100 parts of PC, 3-10 parts of styrene-butadiene transparent impact-resistant resin, 5-10 parts of filler, 5-12 parts of toughening agent, 0.8-2 parts of light stabilizer, 0.8-2 parts of light diffusion agent, 0.3-1.0 part of pentaerythritol acrylate, 0.5-2 parts of lubricant and 0.5-2 parts of antioxidant.
Further, the filler comprises nano silica, perfluoropolyether and modified diatomite, wherein the preparation method of the modified diatomite comprises the following steps: mixing diatomite and a silane coupling agent according to the weight ratio of 45-48: 1 in absolute ethyl alcohol, and then the mixture is subjected to ultrasonic oscillation and fully mixed.
Preferably, the mass ratio of the nano silica to the perfluoropolyether to the modified diatomite in the filler is 1-3: 1: 2-5.
The modified diatomite particles in the filler have the characteristics of large porosity, strong absorptivity, stable chemical property, wear resistance, heat resistance and the like, can greatly improve the scratch resistance of PC (polycarbonate) by being compounded with nano silicon dioxide and perfluoropolyether (surface tension and refractive index are very low, and the nano silicon dioxide and the perfluoropolyether have good lubricity), and the pentaerythritol acrylate added in the material has the characteristic of high crosslinking density, so that the flexibility and scratch resistance of the material can be further improved, and the lubricant added in the material can reduce the mutual friction among the material, a die and internal molecules of the material in the processing process, so that the processing performance of the material can be improved, and the performance of a product can be improved.
Further, the toughening agent is one or more of chlorinated polyethylene, butadiene-styrene copolymer, methacrylate-acrylate copolymer and EVA resin.
Further, the light stabilizer is one or more of benzal malonate, 2-thiazolyl-3-pyridyl acrylonitrile and dibutyl tin bis (monobutyl maleate).
Further, the light diffusing agent is one or more of polyisobutyl methacrylate, polystyrene particles, polysiloxane particles and polyacrylic acid particles.
Further, the lubricant is at least one of stearic acid type lubricant (such as pentaerythritol stearate, stearic acid, ethylene bis stearamide, calcium stearate, zinc stearate), polyethylene wax, and silicone powder.
Further, the antioxidant is one or a mixture of more of antioxidant 1010, antioxidant 168, antioxidant 1076 and antioxidant 626.
On the other hand, the invention also provides a preparation method of the high-hardness PC light diffusion material, which comprises the steps of dispersing and uniformly mixing PC, butylbenzene transparent impact-resistant resin, filler, toughening agent, light stabilizer, light diffusion agent, pentaerythritol acrylate, lubricant and antioxidant, adding the mixture through a main feeding port of a double-screw extruder, controlling the rotating speed to be 1000-1500r/min and the temperature to be 255-275 ℃, melting, mixing, extruding, cooling, granulating and drying.
According to the high-hardness PC photodiffusion material, the components are optimized, the compound filler is added, and on the basis of ensuring that the haze is more than 90% and the light transmittance is more than 85%, the internal structure of the PC photodiffusion material is improved, so that the PC photodiffusion material has excellent mechanical property and scratch resistance, and the surface pencil hardness can reach 3H.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention. It is to be understood that the following description is only illustrative of the present invention and is not to be construed as limiting the present invention.
The terms "comprises," "comprising," "includes," "including," "has," "having," "contains," "containing," or any other variation thereof, as used herein, are intended to cover a non-exclusive inclusion. For example, a composition, process, method, article, or apparatus that comprises a list of elements is not necessarily limited to only those elements but may include other elements not expressly listed or inherent to such composition, process, method, article, or apparatus.
The indefinite articles "a" and "an" preceding an element or component of the invention are not intended to limit the number requirement (i.e., the number of occurrences) of the element or component. Thus, "a" or "an" should be read to include one or at least one, and the singular form of an element or component also includes the plural unless the number clearly indicates the singular.
The technical features of the embodiments of the present invention may be combined with each other as long as they do not conflict with each other.
Example 1
According to the weight parts, 95 parts of PC, 7 parts of butylbenzene transparent impact-resistant resin, 8 parts of filler, 9 parts of toughening agent, 1.4 parts of light stabilizer, 1.5 parts of light diffusion agent, 0.7 part of pentaerythritol acrylate, 1.3 parts of lubricant and 1.5 parts of antioxidant are added through a main feeding port of a double-screw extruder, the rotating speed is controlled to be 1000-class 1500r/min, the temperature is 255-class 275 ℃, and the PC light diffusion material is prepared by melting, mixing, extruding, cooling, granulating and drying.
The filler comprises nano silicon dioxide, perfluoropolyether and modified diatomite, and the preparation method of the modified diatomite comprises the following steps: mixing diatomite and a silane coupling agent according to the weight ratio of 46: 1 in absolute ethyl alcohol, and carrying out ultrasonic oscillation and full mixing; the mass ratio of the nano silicon dioxide to the perfluoropolyether to the modified diatomite in the filler is 2: 1: 4.
the toughening agent is a methacrylate-acrylate copolymer; the light stabilizer is benzal malonate; the light diffusant is polyisobutyl methacrylate; the lubricant is pentaerythritol stearate; the antioxidant is antioxidant 1010.
Example 2
According to the weight portion, 90 portions of PC, 3 portions of butylbenzene transparent impact-resistant resin, 5 portions of filler, 5 portions of toughening agent, 0.8 portion of light stabilizer, 0.8 portion of light diffusion agent, 0.3 portion of pentaerythritol acrylate, 0.5 portion of lubricant and 0.5 portion of antioxidant are added through a main feeding port of a double-screw extruder, the rotating speed is controlled to be 1000-class 1500r/min, the temperature is 255-class 275 ℃, and the PC light diffusion material is prepared through melting, mixing, extruding, cooling, grain cutting and drying.
The filler comprises nano silicon dioxide, perfluoropolyether and modified diatomite, and the preparation method of the modified diatomite comprises the following steps: mixing diatomite and a silane coupling agent according to the weight ratio of 48: 1 in absolute ethyl alcohol, and carrying out ultrasonic oscillation and full mixing; the mass ratio of the nano silicon dioxide to the perfluoropolyether to the modified diatomite in the filler is 3: 1: 2.
the toughening agent is a butadiene-styrene copolymer; the light stabilizer is 2-thiazolyl-3-pyridyl acrylonitrile; the light diffusant is polystyrene particles; the lubricant is ethylene bis stearamide; the antioxidant is an antioxidant 1076.
Example 3
According to the weight parts, 100 parts of PC, 10 parts of butylbenzene transparent impact-resistant resin, 10 parts of filler, 12 parts of toughening agent, 2 parts of light stabilizer, 2 parts of light diffusing agent, 1.0 part of pentaerythritol acrylate, 2 parts of lubricant and 2 parts of antioxidant are added through a main feeding port of a double-screw extruder, the rotating speed is controlled to be 1000-plus-one 1500r/min, the temperature is 255-plus-one 275 ℃, and the PC light diffusing material is prepared by melting, mixing, extruding, cooling, granulating and drying.
The filler comprises nano silicon dioxide, perfluoropolyether and modified diatomite, and the preparation method of the modified diatomite comprises the following steps: mixing diatomite and a silane coupling agent according to the weight ratio of 45: 1 in absolute ethyl alcohol, and carrying out ultrasonic oscillation and full mixing; the mass ratio of the nano silicon dioxide to the perfluoropolyether to the modified diatomite in the filler is 1: 1: 5.
the toughening agent is EVA resin; the light stabilizer is dibutyltin bis (monobutyl maleate); the light diffusant is polyacrylic acid particles; the lubricant is silicone powder; the antioxidant is 626.
Example 4
According to the weight parts, 95 parts of PC, 8 parts of filler, 9 parts of flexibilizer, 1.4 parts of light stabilizer, 1.5 parts of light diffusing agent, 0.7 part of pentaerythritol acrylate, 1.3 parts of lubricant and 1.5 parts of antioxidant are added through a main feeding port of a double-screw extruder, the rotating speed is controlled to be 1000-class sand 1500r/min, the temperature is 255-class sand 275 ℃, and the PC light diffusing material is prepared by melting, mixing, extruding, cooling, granulating and drying. The filler comprises nano silicon dioxide, perfluoropolyether and modified diatomite, and the preparation method of the modified diatomite comprises the following steps: mixing diatomite and a silane coupling agent according to the weight ratio of 46: 1 in absolute ethyl alcohol, and carrying out ultrasonic oscillation and full mixing; the mass ratio of the nano silicon dioxide to the perfluoropolyether to the modified diatomite in the filler is 2: 1: 4.
the toughening agent is a methacrylate-acrylate copolymer; the light stabilizer is benzal malonate; the light diffusant is polyisobutyl methacrylate; the lubricant is pentaerythritol stearate; the antioxidant is antioxidant 1010.
Example 5
According to the weight parts, 95 parts of PC, 7 parts of butylbenzene transparent impact-resistant resin, 8 parts of filler, 9 parts of toughening agent, 1.4 parts of light stabilizer, 1.5 parts of light diffusing agent, 1.3 parts of lubricant and 1.5 parts of antioxidant are added through a main feeding port of a double-screw extruder, the rotating speed is controlled to be 1000-class sand 1500r/min, the temperature is 255-class sand 275 ℃, and the PC light diffusing material is prepared by melting, mixing, extruding, cooling, granulating and drying. The filler comprises nano silicon dioxide, perfluoropolyether and modified diatomite, and the preparation method of the modified diatomite comprises the following steps: mixing diatomite and a silane coupling agent according to the weight ratio of 46: 1 in absolute ethyl alcohol, and carrying out ultrasonic oscillation and full mixing; the mass ratio of the nano silicon dioxide to the perfluoropolyether to the modified diatomite in the filler is 2: 1: 4.
the toughening agent is a methacrylate-acrylate copolymer; the light stabilizer is benzal malonate; the light diffusant is polyisobutyl methacrylate; the lubricant is pentaerythritol stearate; the antioxidant is antioxidant 1010.
Example 6
According to the weight parts, 95 parts of PC, 7 parts of butylbenzene transparent impact-resistant resin, 2 parts of filler, 9 parts of toughening agent, 1.4 parts of light stabilizer, 1.5 parts of light diffusion agent, 0.7 part of pentaerythritol acrylate, 1.3 parts of lubricant and 1.5 parts of antioxidant are added through a main feeding port of a double-screw extruder, the rotating speed is controlled to be 1000-class 1500r/min, the temperature is 255-class 275 ℃, and the PC light diffusion material is prepared by melting, mixing, extruding, cooling, granulating and drying. The filler comprises nano silicon dioxide, perfluoropolyether and modified diatomite, and the preparation method of the modified diatomite comprises the following steps: mixing diatomite and a silane coupling agent according to the weight ratio of 46: 1 in absolute ethyl alcohol, and carrying out ultrasonic oscillation and full mixing; the mass ratio of the nano silicon dioxide to the perfluoropolyether to the modified diatomite in the filler is 2: 1: 4.
the toughening agent is a methacrylate-acrylate copolymer; the light stabilizer is benzal malonate; the light diffusant is polyisobutyl methacrylate; the lubricant is pentaerythritol stearate; the antioxidant is antioxidant 1010.
Example 7
According to the weight parts, 95 parts of PC, 7 parts of butylbenzene transparent impact-resistant resin, 8 parts of filler, 9 parts of toughening agent, 1.4 parts of light stabilizer, 1.5 parts of light diffusion agent, 0.7 part of pentaerythritol acrylate, 1.3 parts of lubricant and 1.5 parts of antioxidant are added through a main feeding port of a double-screw extruder, the rotating speed is controlled to be 1000-class 1500r/min, the temperature is 255-class 275 ℃, and the PC light diffusion material is prepared by melting, mixing, extruding, cooling, granulating and drying. The filler comprises perfluoropolyether and modified diatomite, and the preparation method of the modified diatomite comprises the following steps: mixing diatomite and a silane coupling agent according to the weight ratio of 46: 1 in absolute ethyl alcohol, and carrying out ultrasonic oscillation and full mixing; the mass ratio of the perfluoropolyether to the modified diatomite in the filler is 1: 4.
the toughening agent is a methacrylate-acrylate copolymer; the light stabilizer is benzal malonate; the light diffusant is polyisobutyl methacrylate; the lubricant is pentaerythritol stearate; the antioxidant is antioxidant 1010.
Example 8
According to the weight parts, 95 parts of PC, 7 parts of butylbenzene transparent impact-resistant resin, 8 parts of filler, 9 parts of toughening agent, 1.4 parts of light stabilizer, 1.5 parts of light diffusion agent, 0.7 part of pentaerythritol acrylate, 1.3 parts of lubricant and 1.5 parts of antioxidant are added through a main feeding port of a double-screw extruder, the rotating speed is controlled to be 1000-class 1500r/min, the temperature is 255-class 275 ℃, and the PC light diffusion material is prepared by melting, mixing, extruding, cooling, granulating and drying. Wherein the filler comprises nano silica and perfluoropolyether; the mass ratio of the nano silicon dioxide to the perfluoropolyether in the filler is 2: 4.
the toughening agent is a methacrylate-acrylate copolymer; the light stabilizer is benzal malonate; the light diffusant is polyisobutyl methacrylate; the lubricant is pentaerythritol stearate; the antioxidant is antioxidant 1010.
Example 9
According to the weight parts, 95 parts of PC, 7 parts of butylbenzene transparent impact-resistant resin, 8 parts of filler, 9 parts of toughening agent, 1.4 parts of light stabilizer, 1.5 parts of light diffusion agent, 0.7 part of pentaerythritol acrylate, 1.3 parts of lubricant and 1.5 parts of antioxidant are added through a main feeding port of a double-screw extruder, the rotating speed is controlled to be 1000-class 1500r/min, the temperature is 255-class 275 ℃, and the PC light diffusion material is prepared by melting, mixing, extruding, cooling, granulating and drying. The filler comprises nano silicon dioxide and modified diatomite, and the preparation method of the modified diatomite comprises the following steps: mixing diatomite and a silane coupling agent according to the weight ratio of 46: 1 in absolute ethyl alcohol, and carrying out ultrasonic oscillation and full mixing; the mass ratio of the nano silicon dioxide to the modified diatomite in the filler is 2: 4.
the toughening agent is a methacrylate-acrylate copolymer; the light stabilizer is benzal malonate; the light diffusant is polyisobutyl methacrylate; the lubricant is pentaerythritol stearate; the antioxidant is antioxidant 1010.
Effects of the embodiment
The PC light diffusion material obtained in each example was subjected to a performance test using the following criteria:
tensile strength: testing according to the standard of ASTM D638;
bending strength: testing according to an ASTMD790 standard;
and (3) impact performance test: measuring the impact strength of a GB/T1843-2008 plastic cantilever beam;
surface pencil hardness test: testing according to the standard of ASTM D3363;
the test results are shown in the following table.
As shown in the table, the modified diatomite particles in the filler are compounded with the nano silicon dioxide and the perfluoropolyether to greatly improve the hardness and the scratch resistance of PC, and the pentaerythritol acrylate added in the material can further improve the flexibility and the scratch resistance of the material.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (7)
1. The high-hardness PC light diffusion material is characterized by comprising, by weight, 90-100 parts of PC, 3-10 parts of butylbenzene transparent impact-resistant resin, 5-10 parts of filler, 5-12 parts of toughening agent, 0.8-2 parts of light stabilizer, 0.8-2 parts of light diffusion agent, 0.3-1.0 part of pentaerythritol acrylate, 0.5-2 parts of lubricant and 0.5-2 parts of antioxidant, wherein the filler comprises nano silicon dioxide, perfluoropolyether and modified diatomite; wherein the mass ratio of the nano-silica to the perfluoropolyether to the modified diatomite in the filler is 1-3: 1: 2-5; the preparation method of the modified diatomite comprises the following steps: mixing diatomite and a silane coupling agent according to the weight ratio of 45-48: 1 in absolute ethyl alcohol, and then the mixture is subjected to ultrasonic oscillation and fully mixed.
2. The high hardness PC photodiffusion material of claim 1, wherein the toughening agent is one or more of chlorinated polyethylene, butadiene-styrene copolymer, methacrylate-acrylate copolymer, EVA resin.
3. The high hardness PC light diffusing material according to claim 1, wherein the light stabilizer is one or more of benzylidene malonate, 2-thiazolyl-3-pyridylacrylonitrile and dibutyltin bis (monobutyl maleate).
4. The high hardness PC light diffusing material of claim 1, wherein the light diffusing agent is one or more of polyisobutyl methacrylate, polystyrene particles, polysiloxane particles, polyacrylic acid particles.
5. The high hardness PC light diffusing material of claim 1 wherein the lubricant is at least one of a stearic acid based lubricant, a polyethylene wax, and a silicone powder.
6. The high hardness PC light diffusing material according to claim 1, wherein the antioxidant is a mixture of one or more of antioxidant 1010, antioxidant 168, antioxidant 1076, and antioxidant 626.
7. The method for preparing the high-hardness PC light diffusion material as claimed in any one of claims 1 to 6, wherein the method comprises the steps of dispersing and uniformly mixing PC, transparent styrene-butadiene impact-resistant resin, filler, toughening agent, light stabilizer, light diffusion agent, pentaerythritol acrylate, lubricant and antioxidant, adding the mixture through a main feeding port of a double-screw extruder, controlling the rotating speed to be 1000-1500r/min and the temperature to be 255-275 ℃, melting, mixing, extruding, cooling, granulating and drying.
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| CN105368029A (en) * | 2010-08-27 | 2016-03-02 | 诺沃梅尔公司 | Polymer compositions and method |
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