CN101205358B - Polycarbonate composition having high light reflectivity and uses thereof - Google Patents
Polycarbonate composition having high light reflectivity and uses thereof Download PDFInfo
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- CN101205358B CN101205358B CN2007101641101A CN200710164110A CN101205358B CN 101205358 B CN101205358 B CN 101205358B CN 2007101641101 A CN2007101641101 A CN 2007101641101A CN 200710164110 A CN200710164110 A CN 200710164110A CN 101205358 B CN101205358 B CN 101205358B
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Abstract
The invention provides a polycarbonate combination with high light reflectivity, which comprises 63 to 90 shares of polycarbonate (PC), 3 to 6 shares of bromide polycarbonate, 2 to 5 shares of Acrylic Acid Core-Shell Copolymer, 5 to 25 shares of TiO2, 0.1 to 0.3 share of antioxidant, 0.2 to 0.4 share of lubricant and 0.3 to 0.5 share PTFE fine powder. The combination has the advantages of anti-flaming, high light reflectivity, high temperature resistant, easy modeling and good opacity and can be used for producing the spare parts for electronic electric appliances such as the LED display, the LCD display, etc.
Description
Technical field
The present invention relates to a kind of polycarbonate composition having high light reflectivity and uses thereof, belong to the high polymer alloy field.
Background technology
Polycarbonate, especially dihydroxyphenyl propane class polycarbonate has outstanding impelling strength, excellent electric insulation, broad use temperature scope, product size is stable, is a kind of good comprehensive properties engineering plastics.Though the polycarbonate over-all properties is better, its some defective is as being easy to stress cracking, and to the breach sensitivity, wear resistance is not good enough and the relatively poor grade of processing fluidity all need be improved.
Though at present existing many different enhancings, polycarbonate material such as fire-retardant, but still can not satisfy the specific demand of optoelectronic areas, such as some part requirement material of light-emitting diode display and LCE indicating meter have fire-retardant, high light reflective, high temperature resistant, ink adhesion is high, dimensional stability good and characteristics such as machine-shaping easily, but existing used material is all inapplicable, need further to improve the performance of material, to satisfy the requirement of product.
Summary of the invention
The object of the present invention is to provide a kind of polycarbonate composition having high light reflectivity, characteristics such as that said composition has is fire-retardant, high light reflectivity rate, high temperature resistant, easy-formation, resistance photosensitiveness are good are used for the production of electronic apparatus component such as light-emitting diode display, LCD display.
A further object of the present invention is to provide a kind of purposes of polycarbonate composition having high light reflectivity.
In order to realize the object of the invention, a kind of polycarbonate composition having high light reflectivity of the present invention comprises 63～90 parts of polycarbonate (PC), contains 3～6 parts of bromination polycarbonate, 2～5 parts of the core-shell copolymerized things of vinylformic acid (IM), TiO
25～25 parts, 0.1～0.3 part in oxidation inhibitor, 0.2～0.4 part of lubricant, 0.3～0.5 part of PTFE micro mist.
Preferably, 70～90 parts of polycarbonate contain 4～6 parts of bromination polycarbonate, 3～5 parts of the core-shell copolymerized things of vinylformic acid (IM), TiO
210～25 parts, oxidation inhibitor O.1～0.3 part, 0.2～0.4 part of lubricant, 0.3～0.5 part of PTFE micro mist.
Be more preferably, 80～90 parts of polycarbonate contain 4～6 parts of bromination polycarbonate, 3～5 parts of the core-shell copolymerized things of vinylformic acid (IM), TiO
215～25 parts, 0.1～0.3 part in oxidation inhibitor, 0.2～0.4 part of lubricant, 0.3～0.5 part of PTFE micro mist.
Described part is weight part, can be this areas such as kilogram, gram, ton, jin weight unit commonly used.
Wherein, the melting index of polycarbonate is 10～15g/10min (1.2kg/300 a ℃), and as external BAYER, all there is production in GE, Supreme Being people company such as change into.
The melting index that contains the bromination polycarbonate is 10～15g/10min, brominated amount 52-58%.Wherein halogen can play fire retardation.
The core-shell copolymerized thing of vinylformic acid (IM) can improve material impact intensity.
The particle diameter 5-10 micron of PTFE micro mist can improve the product flame retardant properties.
For light, thermal stability and the processing stability that improves product, add some oxidation inhibitor at composition, oxidation inhibitor can be selected oxidation inhibitor such as organic Hinered phenols, amine, phosphorous acid esters, thioesters class, can be one or more mixing, blending ratio is 1～2: 1～2 or 1～2: 1～2: 1～2; Hinered phenols can be four [β-(3,5-di-t-butyl-4-hydroxyl-phenyl) propionic acid] pentaerythritol ester (abbreviation antioxidant 1010), β-(4-hydroxyl-3, the 5-di-tert-butyl-phenyl) the positive octadecanol ester of propionic acid (abbreviation antioxidant 1076), N, N '-, 6-is two bases two (3,5-two (1,1 dimethyl ethyl)-4-hydroxybenzene propionyl (being called for short oxidation inhibitor 1098), 3,5-two (1,1 dimethyl ethyl)-and 4-hydroxy phenylpropionic acid 2-(3,5-two (1,1 dimethyl ethyl)-4-hydroxy phenyl)-1-oxopropyl) hydrazides (being called for short oxidation inhibitor MD1024), 1,3,5-trimethylammonium-2,4,6-three (3, the 5-di-tert-butyl-4-hydroxyl benzyl) benzene (abbreviation antioxidant 330), 4,4 '-thiobis (the 6-tertiary butyl-3-methylphenol) (abbreviation antioxidant 300) etc., amine should be on-contaminated Ursol D system, as N-phenylaniline and 2,2, the reaction product of 4-2,4,4-Trimethyl-1-pentene; Phosphorous acid esters can be triphenyl phosphite (TPP), three-(nonyl phenyl) phosphorous acid ester (TNPP), three (2, the 4-di-tert-butyl-phenyl) phosphorous acid ester (being called for short oxidation inhibitor 168), tetramethylolmethane diphosphite two (18) alcohol ester (being called for short oxidation inhibitor 619), tetramethylolmethane diphosphite two (2,4-di-tert-butyl phenyl) ester (be called for short oxidation inhibitor 626) etc., the thioesters class can be Tyox B DLTP or thio-2 acid two (18) ester DSTP etc.
For the ease of processing modified finishing smoothly, just be convenient to extruding of twin screw, can in composition, add lubricant, described lubricant is selected stearic acid stearyl ester class or oxidized polyolefin waxes for use, stearic acid stearyl ester class is stearic acid pentaerythritol ester or montanate, oxidized polyolefin waxes is PE wax or PP wax, preferably stearic acid stearyl ester class.
Polycarbonate composition having high light reflectivity of the present invention can be selected twin screw extruder or have the single screw extrusion machine of static mixer, is preferably twin screw extruder, and general processing temperature scope can be controlled between 250～280 ℃.
Polycarbonate composition having high light reflectivity of the present invention is used for the production of electronic apparatus component such as light-emitting diode display, LCD display.
Polycarbonate composition having high light reflectivity of the present invention screens various components, select for the suitable PC of said composition, contain bromination polycarbonate, the core-shell copolymerized thing of vinylformic acid, oxidation inhibitor, lubricant etc., brought into play the advantage of PC effectively, have characteristics such as fire-retardant, high light reflectivity rate, high temperature resistant, easy-formation, resistance photosensitiveness be good, be used for the production of electronic apparatus component such as light-emitting diode display, LCD display.
Every excellent performance of polycarbonate composition having high light reflectivity of the present invention, tensile yield strength 50～60MPa, flexural strength 75～85MPa, modulus in flexure 2300～2500MPa, 23 ℃ of Izod notched Izod impact strength, 30～50KJ/m2,120 ℃ of bakings are out of shape 5 grades, flame retardant resistance VO, 1.0-3.2mm, luminous reflectance factor is more than 95%.(employing iso standard).
Embodiment
Following embodiment further describes the present invention, but described embodiment only is used to illustrate the present invention rather than restriction the present invention.
Embodiment 1
The composition component of present embodiment is: 63 kilograms of polycarbonate (PC) contain 5 kilograms of bromination polycarbonate, 5 kilograms of the core-shell copolymerized things of vinylformic acid (IM), TiO
215 kilograms, 0.2 kilogram of antioxidant 1010,0.2 kilogram of lubricant stearic acid pentaerythritol ester, 0.3 kilogram of PTFE micro mist.
Wherein the polycarbonate melt index is 12g/10min, and BAYER company produces, and containing bromination polycarbonate melt index is 15g/10min, brominated amount 55%, and U.S. big lake company produces, and the core-shell copolymerized thing of vinylformic acid (IM) U.S. Romo Co.,Ltd produces, TiO
2E.I.Du Pont Company produces, 5 microns of PTFE grain size of micropowder, and E.I.Du Pont Company produces, and oxidation inhibitor is Switzerland vapour Bagong department, and lubricant is produced for ICI company.
Above-mentioned each component is mixed, carry out extruding pelletization with twin screw extruder then, processing temperature is: 260 ℃ (fluxing zone).
Embodiment 2
The composition component of present embodiment is: 90 kilograms of polycarbonate (PC) contain 3 kilograms of bromination polycarbonate, 2 kilograms of the core-shell copolymerized things of vinylformic acid (IM), TiO
210 kilograms, 168 0.1 kilograms in oxidation inhibitor, 0.3 kilogram in lubricant PE wax, 0.5 kilogram of PTFE micro mist.
Wherein the polycarbonate melt index is 15g/10min, and GE company produces, and containing bromination polycarbonate melt index is 12g/10min, brominated amount 58%, and Japanese Supreme Being people chemical company produces, and the core-shell copolymerized thing of vinylformic acid (IM) Mitsubishi chemical company produces, TiO
2E.I.Du Pont Company produces, 8 microns of PTFE grain size of micropowder, and E.I.Du Pont Company produces, and oxidation inhibitor is Switzerland vapour Bagong department, and lubricant is produced for ICI company.
Above-mentioned each component is mixed, carry out extruding pelletization with twin screw extruder then, processing temperature is: 250 ℃ (fluxing zone).
Embodiment 3
The composition component of present embodiment is: 80 kilograms of polycarbonate (PC) contain 4 kilograms of bromination polycarbonate, 3 kilograms of the core-shell copolymerized things of vinylformic acid (IM), TiO
25 kilograms, 0.3 kilogram of antioxidant 300,0.4 kilogram of lubricant montanate, 0.4 kilogram of PTFE micro mist.
Above-mentioned each component is mixed, carry out extruding pelletization with twin screw extruder then, processing temperature is: 270 ℃ (fluxing zone).
Embodiment 4
With embodiment 1, different is that each component is: 70 kilograms of polycarbonate (PC) contain 6 kilograms of bromination polycarbonate, 4 kilograms of the core-shell copolymerized things of vinylformic acid (IM), TiO
225 kilograms, 0.2 kilogram of antioxidant 1010,1680.15 kilograms, 0.2 kilogram in PP wax, 0.3 kilogram of PTFE micro mist.
The performance test results of each composition of embodiment 1-10 is as follows:
| Test value | Tensile yield strength | Tensile break strength | Flexural strength | Modulus in flexure | Shock strength | 120 ℃ of baking distortion | Light reflective | Flame retardant resistance VO. |
| MPa | MPa | MPa | MPa | KJ/m2 | The 1-5 level, 5 grades best | The 1-5 level, 5 grades best | ||
| ISO?527 | ISO?527 | ISO?178 | ISO?178 | ISO?178 | mm | |||
| Embodiment 1 | 55 | 60 | 85 | 2200 | 55 | 5 | 5 | 1.5 |
| Embodiment 2 | 60 | 65 | 90 | 2600 | 45 | 5 | 5 | 3.0 |
| Embodiment 3 | 62 | 65 | 90 | 2500 | 46 | 5 | 4 | 3.2 |
| Embodiment 4 | 58 | 60 | 85 | 2600 | 40 | 5 | 5 | 1.5 |
More than the described composition of each embodiment all can be used for the production of electronic apparatus component such as light-emitting diode display, LCD display.
Although the present invention has been done detailed explanation and quoted some specific exampless as proof, for a person skilled in the art, only otherwise leave the spirit and scope of the present invention, it is obvious doing various variations or correction.
Claims (4)
1. a polycarbonate composition having high light reflectivity is characterized in that, by 63～90 parts of polycarbonate, contains 3～6 parts of bromination polycarbonate, 2～5 parts of the core-shell copolymerized things of vinylformic acid, TiO
25～25 parts, 0.1～0.3 part in oxidation inhibitor, 0.2～0.4 part of lubricant and 0.3～0.5 part of composition of PTFE micro mist; The melting index of described polycarbonate under 300 ℃, 1.2kg is 10～15g/10min; The melting index that contains the bromination polycarbonate is 10～15g/10min, brominated amount 52～58%; 5～10 microns of the particle diameters of PTFE micro mist, described oxidation inhibitor are one or more mixing in organic Hinered phenols, amine, phosphorous acid esters, the thioesters kind antioxidant, and described lubricant is stearic acid pentaerythritol ester or montanate; The employing iso standard detects, and the luminous reflectance factor of described polycarbonate compositions is more than 95%, tensile yield strength 50～60MPa, flexural strength 75～85MPa, modulus in flexure 2300～2500MPa, 23 ℃ of Izod notched Izod impact strength, 30～50KJ/m
2, 120 ℃ of bakings are out of shape 5 grades, flame retardant resistance V0,1.0-3.2mm.
2. polycarbonate compositions according to claim 1 is characterized in that, by 70～90 parts of polycarbonate, contains 4～6 parts of bromination polycarbonate, 3～5 parts of the core-shell copolymerized things of vinylformic acid, TiO
210～25 parts, 0.1～0.3 part in oxidation inhibitor, 0.2～0.4 part of lubricant and 0.3～0.5 part of composition of PTFE micro mist.
3. polycarbonate compositions according to claim 1 and 2 is characterized in that, by 80～90 parts of polycarbonate, contains 4～6 parts of bromination polycarbonate, 3～5 parts of the core-shell copolymerized things of vinylformic acid, TiO
215～25 parts, 0.1～0.3 part in oxidation inhibitor, 0.2～0.4 part of lubricant and 0.3～0.5 part of composition of PTFE micro mist.
4. the application of each described polycarbonate compositions in producing light-emitting diode display, LCD display electronic apparatus component in the claim 1～3.
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| CN2007101641101A CN101205358B (en) | 2007-09-30 | 2007-09-30 | Polycarbonate composition having high light reflectivity and uses thereof |
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| CN101205358B true CN101205358B (en) | 2011-04-27 |
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Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101875767B (en) * | 2009-11-23 | 2012-06-13 | 深圳市科聚新材料有限公司 | High gloss special composite material for meter case and preparation method thereof |
| CN101955644A (en) * | 2010-10-14 | 2011-01-26 | 苏州市科创聚合物有限公司 | Halogen-containing flame-retardant transparent polycarbonate material for preventing stress crack |
| US9290618B2 (en) | 2011-08-05 | 2016-03-22 | Sabic Global Technologies B.V. | Polycarbonate compositions having enhanced optical properties, methods of making and articles comprising the polycarbonate compositions |
| US8962117B2 (en) | 2011-10-27 | 2015-02-24 | Sabic Global Technologies B.V. | Process for producing bisphenol A with reduced sulfur content, polycarbonate made from the bisphenol A, and containers formed from the polycarbonate |
| WO2013116697A1 (en) | 2012-02-03 | 2013-08-08 | Sabic Innovative Plastics Ip B.V. | Light emitting diode device and method for production thereof containing conversion material chemistry |
| WO2013130606A2 (en) | 2012-02-29 | 2013-09-06 | Sabic Innovative Plastics Ip B.V. | Polycarbonate made from low sulfur bisphenol a and containing converions material chemistry, and articles made therefrom |
| WO2013130610A1 (en) | 2012-02-29 | 2013-09-06 | Sabic Innovative Plastics Ip B.V. | Polycarbonate compositions containing conversions material chemistry and having enhanced optical properties, methods of making and articles comprising the same |
| US9346949B2 (en) | 2013-02-12 | 2016-05-24 | Sabic Global Technologies B.V. | High reflectance polycarbonate |
| KR101961312B1 (en) | 2012-10-25 | 2019-03-22 | 사빅 글로벌 테크놀러지스 비.브이. | Light emitting diode devices, method of manufacture, uses thereof |
| WO2014186548A1 (en) | 2013-05-16 | 2014-11-20 | Sabic Innovative Plastics Ip B.V. | Branched polycarbonate compositions having conversion material chemistry and articles thereof |
| EP3004234B1 (en) | 2013-05-29 | 2021-08-18 | SABIC Global Technologies B.V. | Illuminating devices with color stable thermoplastic light-transmitting articles |
| EP3004233B1 (en) | 2013-05-29 | 2018-02-14 | SABIC Global Technologies B.V. | Color stable thermoplastic composition |
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Address after: 528322 Guangdong Province, Foshan city Shunde District Leliu Street office Du Village even Fuan Industrial District No. 2-2 six Patentee after: Guangdong Ruineng New Material Co., Ltd. Address before: 528322 Guangdong Province, Foshan city Shunde District Leliu Town Fuan Industrial Zone No. 28 Patentee before: Foshan Shunde District Ruineng Technology Co., Ltd. |