CN101805506A - Polycarbonate resin composition for lighting tube material and preparation method thereof - Google Patents
Polycarbonate resin composition for lighting tube material and preparation method thereof Download PDFInfo
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- CN101805506A CN101805506A CN201010155248A CN201010155248A CN101805506A CN 101805506 A CN101805506 A CN 101805506A CN 201010155248 A CN201010155248 A CN 201010155248A CN 201010155248 A CN201010155248 A CN 201010155248A CN 101805506 A CN101805506 A CN 101805506A
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- polycarbonate resin
- resin composition
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- polycarbonate
- tube material
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- 239000004431 polycarbonate resin Substances 0.000 title claims abstract description 31
- 229920005668 polycarbonate resin Polymers 0.000 title claims abstract description 31
- 239000000463 material Substances 0.000 title claims abstract description 30
- 239000000203 mixture Substances 0.000 title claims abstract description 24
- 238000002360 preparation method Methods 0.000 title description 3
- 239000004417 polycarbonate Substances 0.000 claims abstract description 22
- 239000003063 flame retardant Substances 0.000 claims abstract description 16
- 229920000515 polycarbonate Polymers 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 14
- 239000003112 inhibitor Substances 0.000 claims description 13
- 230000003647 oxidation Effects 0.000 claims description 13
- 238000007254 oxidation reaction Methods 0.000 claims description 13
- 238000005453 pelletization Methods 0.000 claims description 10
- 201000009310 astigmatism Diseases 0.000 claims description 9
- ZXDDPOHVAMWLBH-UHFFFAOYSA-N 2,4-Dihydroxybenzophenone Chemical compound OC1=CC(O)=CC=C1C(=O)C1=CC=CC=C1 ZXDDPOHVAMWLBH-UHFFFAOYSA-N 0.000 claims description 8
- XOUQAVYLRNOXDO-UHFFFAOYSA-N 2-tert-butyl-5-methylphenol Chemical compound CC1=CC=C(C(C)(C)C)C(O)=C1 XOUQAVYLRNOXDO-UHFFFAOYSA-N 0.000 claims description 8
- 238000001125 extrusion Methods 0.000 claims description 8
- 239000002994 raw material Substances 0.000 claims description 8
- -1 pentaerythritol ester Chemical class 0.000 claims description 7
- 239000006096 absorbing agent Substances 0.000 claims description 6
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 claims description 6
- 238000005303 weighing Methods 0.000 claims description 4
- 239000007983 Tris buffer Substances 0.000 claims description 3
- 239000012965 benzophenone Substances 0.000 claims description 3
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 claims description 3
- 235000019260 propionic acid Nutrition 0.000 claims description 3
- 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 3
- 238000002156 mixing Methods 0.000 claims description 2
- 239000012257 stirred material Substances 0.000 claims description 2
- 238000005452 bending Methods 0.000 abstract description 16
- 230000003287 optical effect Effects 0.000 abstract description 2
- 239000003381 stabilizer Substances 0.000 abstract 2
- 230000002745 absorbent Effects 0.000 abstract 1
- 239000002250 absorbent Substances 0.000 abstract 1
- 238000007493 shaping process Methods 0.000 abstract 1
- 230000002195 synergetic effect Effects 0.000 abstract 1
- 238000002844 melting Methods 0.000 description 8
- 230000008018 melting Effects 0.000 description 8
- 239000002131 composite material Substances 0.000 description 6
- 238000011056 performance test Methods 0.000 description 6
- 238000003756 stirring Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000004224 protection Effects 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- DEIGXXQKDWULML-UHFFFAOYSA-N 1,2,5,6,9,10-hexabromocyclododecane Chemical compound BrC1CCC(Br)C(Br)CCC(Br)C(Br)CCC1Br DEIGXXQKDWULML-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N Acrylic acid Chemical compound OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000004970 Chain extender Substances 0.000 description 1
- UVAUHTUDFIJIDS-UHFFFAOYSA-N FC(C(C(C(F)(F)F)(F)F)(F)F)([K])F Chemical compound FC(C(C(C(F)(F)F)(F)F)(F)F)([K])F UVAUHTUDFIJIDS-UHFFFAOYSA-N 0.000 description 1
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 1
- 230000006750 UV protection Effects 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 125000005907 alkyl ester group Chemical group 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 239000003849 aromatic solvent Substances 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 150000008280 chlorinated hydrocarbons Chemical class 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000010525 oxidative degradation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 235000011164 potassium chloride Nutrition 0.000 description 1
- 239000001103 potassium chloride Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 1
- 150000003871 sulfonates Chemical class 0.000 description 1
- TXEYQDLBPFQVAA-UHFFFAOYSA-N tetrafluoromethane Chemical compound FC(F)(F)F TXEYQDLBPFQVAA-UHFFFAOYSA-N 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/918—Thermal treatment of the stream of extruded material, e.g. cooling characterized by differential heating or cooling
- B29C48/9185—Thermal treatment of the stream of extruded material, e.g. cooling characterized by differential heating or cooling in the direction of the stream of the material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/04—Particle-shaped
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92895—Barrel or housing
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention provides a polycarbonate resin composition for a lighting tube material, which comprises 100 parts of polycarbonate, 0.08 to 0.1 part of fire retardant, 2 to 3 parts of astigmatical stabilizer, 0.1 to 0.2 part of antioxidizer and 0.01 to 0.06 part of ultraviolet absorbent in parts by weight. The invention also provides a method for preparing polycarbonate resin by using the polycarbonate resin composition. Each component in the technical proposal has good compatibility, and the original molecular weight and the inherent viscosity of the polycarbonate can be increased and restored in the high-temperature shaping process under the synergic action of the combination of the fire retardant and the astigmatical stabilizer and the antioxidizer simultaneously; and the prepared polycarbonate resin has the advantages of high transparency, high impact strength, high bending strength, high tensile strength and good stable optical fire resistance.
Description
[technical field]
The present invention relates to polymeric material field, relate in particular to a kind of polycarbonate resin composition for lighting tube material and preparation method thereof.
[background technology]
Traditional fluorescent tube, comprise that indoor fluorescent tube all is to adopt glass to make, continuous development along with material industry, the particularly indoor fluorescent tube of present fluorescent tube all is the polycarbonate (Polycarbonate by muted color or little tool color usually, be called for short PC) as the major ingredient manufacturing, major cause is that PC has high relatively glass transformation temperature and outstanding transparency and the interior optical transmittance of visible-range.PC has excellent physical and mechanical properties as a kind of thermoplastic engineering plastic, shock-resistance excellence especially, tensile strength, flexural strength, compressive strength height; Creep properties is little, dimensional stabilizing; Have good thermotolerance and lower temperature resistance, in wide temperature range, have stable mechanical property, dimensional stability, electrical property and flame retardant resistance, can be at-60～120 ℃ of following life-time service; Because the molecular chain rigidity is big, resin melt viscosity is big; Water-intake rate is little, and shrinking percentage is little, the dimensional precision height, and dimensional stability is good, and the film ventilation property is little; Stable to light, but ultraviolet resistance not, weathering resistance is better; Oil resistant, acidproof but not anti-highly basic, oxidizing acid and amine, ketone; Be dissolved in chlorinated hydrocarbons and aromatic solvent, but easily cause hydrolysis and cracking for a long time in water, shortcoming is poor because of fatigue resistance, is easy to generate stress cracking, and good solubility-resistence is poor, and wear resistance is not good enough.
Based on the above-mentioned characteristic of PC, when it uses as the material of making the especially indoor fluorescent tube of fluorescent tube, be necessary it is carried out modification, with its transparence of further raising, dispersiveness, temperature tolerance and mechanical property.
[summary of the invention]
The purpose of this invention is to provide a kind of modified polycarbonate resin,, make it be more suitable for making the especially indoor fluorescent tube material of lamp tube material to reach its transparence of further raising, temperature tolerance and mechanical property.
To achieve the above object of the invention, the present invention proposes following technical scheme:
A kind of polycarbonate resin composition for lighting tube material is characterized in that, meter comprises following component by weight:
100 parts of polycarbonate
Astigmatism stablizer 2-3 part
Fire-retardant FR-2 025 0.08-0.1 part
Oxidation inhibitor 0.1-0.2 part
UV light absorber 0.03-0.06 part.
In the above-mentioned polycarbonate resin composition for lighting tube material, described polycarbonate is powdered, granulous or powdery and granulous miscellany.
1. in the above-mentioned polycarbonate resin composition for lighting tube material, described astigmatic stablizer be selected from Y4156 (American I nternatix company product grade),
329[Germany BASF chemical company product grade, 2-(2H-benzo azido--2-yl)-4-(1,1,3,3-tetramethyl butyl) phenol], ECCOBOND DX-20 (U.S. Ai Masenkangming company product grade), EP-3000 (Taiwan day Ya Feitepu product grade), CN-801 (multipolymer of caustic solubility vinylformic acid and alkyl ester thereof), EFKA-6225 (subordinate Ciba company of German BASF chemical company
The series product trade mark), at least a among the BYK-163 (the German Bi Ke BYK of the chemical company series product trade mark).
In the above-mentioned polycarbonate resin composition for lighting tube material, described fire retardant is to be selected from FR-1010 (hexabromocyclododecane flame retardant), FR-3690 (the sylvite fire retardant of perfluorocarbon, Sunpreme
TM, French ElfAtochem company), at least a among FR-2025 (perfluoro butyl potassium sulfonate) or the FR-KSS (Sulfonates fire retardant, U.S. SLoss company product code name).
In the above-mentioned polycarbonate resin composition for lighting tube material, described oxidation inhibitor is to be selected from 4, at least a in 4 '-thiobis (the 6-tertiary butyl-3-methylphenol), tris phosphite (2, the 4-di-tert-butyl-phenyl), four [β-(3, the 5 di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester.
In the above-mentioned polycarbonate resin composition for lighting tube material, described UV light absorber is to be selected from least a in Whitfield's ointment dihydroxyphenyl propane ester, 2-hydroxyl-4 n-octyloxies-benzophenone, 2,4 dihydroxyl benzophenone, 2-(2 '-dihydroxyl-the 3 '-tertiary butyl-5 '-the aminomethyl phenyl)-5-chlorobenzotriazole.
The present invention also provides a kind of method that adopts above-mentioned polycarbonate resin composition for lighting tube material to prepare polycarbonate resin, comprises following steps:
S1 gets the raw materials ready, and takes by weighing each component by pre-determined feed composition and weight thereof;
The S2 batch mixing is poured the material that takes by weighing among the step S1 in the stirrer into and to be stirred;
The S3 extruding pelletization places forcing machine to carry out extruding pelletization even stirred materials, and forcing machine Nei Ge district extrusion temperature is: a district 260-280 ℃, two district 270-280 ℃, three district 270-280 ℃, four district 270-300 ℃, five district 270-300 ℃.
The polycarbonate resin composition for lighting tube material that technical solution of the present invention provides, the consistency of each component is better in the prescription, the synergy of while chainextender and oxidation inhibitor, in the high temperature process moulding process, can increase and recover original molecular weight of PC and limiting viscosity, prepared PC resin transparent degree height, shock strength, bending strength and tensile strength height.
[embodiment]
Embodiment one
The set of dispense ratio of according to the form below get the raw materials ready (1 part=100 gram):
100 parts of polycarbonate
Astigmatism is stablized 2.5 parts of EP-3000
4,0.2 part of 4 '-thiobis (the 6-tertiary butyl-3-methylphenol)
0.01 part of 2,4 dihydroxyl benzophenone
0.08 part of fire retardant FR-1010
Pouring each component of getting material ready into stirrer stirs, and placing single screw extrusion machine, screw speed 42Hz is provided with temperature and is: 260 ℃ in a district, 260 ℃ in two districts, 270 ℃ in three districts, 270 ℃ in four districts, 270 ℃ in five districts, extruding pelletization promptly gets polycarbonate resin of the present invention.
The performance test results:
| Performance | Method | Unit | The result |
| Melting index | ??ASTMD1238 | ??g/10min | ??10 |
| Tensile strength | ??ASTMD638 | ??MPa | ??65 |
| Performance | Method | Unit | The result |
| Unit elongation | ??ASTMD638 | ??％ | ??192 |
| Bending strength | ??ASTMD790 | ??MPa | ??98 |
| Composite bending modulus | ??ASTMD790 | ??MPa | ??2348 |
| Notched Izod impact strength (1/8 ") | ??ASTMD256 | ??Kg·cm/cm | ??112 |
| Transparence | ??ASTMD386 | ??T | ??7.3 |
| Thermal distorsion temperature | ??ASTMD648 | ??℃ | ??135 |
Embodiment two
The set of dispense ratio of according to the form below get the raw materials ready (1 part=100 gram):
100 parts of polycarbonate
The astigmatism stablizer
329 3 parts
4,0.15 part of 4 '-thiobis (the 6-tertiary butyl-3-methylphenol)
0.06 part of 2,4 dihydroxyl benzophenone
025 0.1 parts of fire-retardant FR-2s
Pouring each component of getting material ready into stirrer stirs, and placing single screw extrusion machine, screw speed 42Hz is provided with temperature and is: 270 ℃ in a district, 270 ℃ in two districts, 280 ℃ in three districts, 280 ℃ in four districts, 280 ℃ in five districts, extruding pelletization promptly gets polycarbonate resin of the present invention.
The performance test results:
| Performance | Method | Unit | The result |
| Melting index | ??ASTMD1238 | ??g/10min | ??13 |
| Tensile strength | ??ASTMD638 | ??MPa | ??58 |
| Unit elongation | ??ASTMD638 | ??％ | ??1880 |
| Bending strength | ??ASTMD790 | ??MPa | ??91 |
| Composite bending modulus | ??ASTMD790 | ??MPa | ??2234 |
| Notched Izod impact strength (1/8 ") | ??ASTMD256 | ??Kg·cm/cm | ??102 |
| Transparence | ??ASTMD386 | ??T | ??8.7 |
| Performance | Method | Unit | The result |
| Thermal distorsion temperature | ??ASTMD648 | ??℃ | ??131 |
Embodiment three
The set of dispense ratio of according to the form below get the raw materials ready (1 part=100 gram):
100 parts of polycarbonate
2 parts of astigmatism stablizer ECCOBOND DX-20
4,0.15 part of 4 '-thiobis (the 6-tertiary butyl-3-methylphenol)
0.03 part of 2,4 dihydroxyl benzophenone
3,690 0.09 parts of fire retardant FR
Pouring each component of getting material ready into stirrer stirs, and placing single screw extrusion machine, screw speed 42Hz is provided with temperature and is: 260 ℃ in a district, 260 ℃ in two districts, 270 ℃ in three districts, 270 ℃ in four districts, 270 ℃ in five districts, extruding pelletization promptly gets polycarbonate resin of the present invention.
The performance test results:
| Performance | Method | Unit | The result |
| Melting index | ??ASTMD1238 | ??g/10min | ??11.8 |
| Tensile strength | ??ASTMD638 | ??MPa | ??68 |
| Unit elongation | ??ASTMD638 | ??％ | ??189 |
| Bending strength | ??ASTMD790 | ??MPa | ??72 |
| Composite bending modulus | ??ASTMD790 | ??MPa | ??2964 |
| Notched Izod impact strength (1/8 ") | ??ASTMD256 | ??Kg·cm/cm | ??87 |
| Transparence | ??ASTMD386 | ??T | ??9.2 |
| Thermal distorsion temperature | ??ASTMD648 | ??℃ | ??125 |
Embodiment four
The set of dispense ratio of according to the form below get the raw materials ready (1 part=100 gram):
100 parts of polycarbonate
3 parts of astigmatism stablizer EP-3000
4,0.1 part of 4 '-thiobis (the 6-tertiary butyl-3-methylphenol)
0.06 part of 2,4 dihydroxyl benzophenone
0.08 part of fire retardant FR-KSS
Pouring each component of getting material ready into stirrer stirs, and placing single screw extrusion machine, screw speed 42Hz is provided with temperature and is: 260 ℃ in a district, 260 ℃ in two districts, 270 ℃ in three districts, 270 ℃ in four districts, 270 ℃ in five districts, extruding pelletization promptly gets polycarbonate resin of the present invention.
The performance test results:
| Performance | Method | Unit | The result |
| Melting index | ??ASTMD1238 | ??g/10min | ??13 |
| Tensile strength | ??ASTMD638 | ??MPa | ??68 |
| Unit elongation | ??ASTMD638 | ??％ | ??187 |
| Bending strength | ??ASTMD790 | ??MPa | ??69 |
| Composite bending modulus | ??ASTMD790 | ??MPa | ??2776 |
| Notched Izod impact strength (1/8 ") | ??ASTMD256 | ??Kg·cm/cm | ??86 |
| Transparence | ??ASTMD386 | ??T | ??9.1 |
| Thermal distorsion temperature | ??ASTMD648 | ??℃ | ??125 |
In other optional embodiment of the present invention, oxidation inhibitor 4,4 '-thiobis (the 6-tertiary butyl-3-methylphenol) can adopt tris phosphite (2, the 4-di-tert-butyl-phenyl) or four [β-(3,5 di-tert-butyl-hydroxy phenyls) propionic acid] pentaerythritol ester substitutes, or the mixture replacing of any two or three in these three kinds of oxidation inhibitor; UV light absorber 2, the 4-dihydroxy benaophenonel can adopt Whitfield's ointment dihydroxyphenyl propane ester, 2-hydroxyl-4 n-octyloxies-benzophenone or 2-(2 '-dihydroxyl-the 3 '-tertiary butyl-5 '-aminomethyl phenyl)-5-chlorobenzotriazole to substitute, or any two kinds, three kinds or four kinds mixture replacing in these four kinds of UV light absorber; Used astigmatism is stablized machine also can select CN-801, EFKA-6225 or BYK-163 etc.
Comparative example one (not adding astigmatic stablizer)
The set of dispense ratio of according to the form below get the raw materials ready (1 part=100 gram):
100 parts of polycarbonate
4,0.2 part of 4 '-thiobis (the 6-tertiary butyl-3-methylphenol)
2,025 0.08 parts of fire retardant FR
0.02 part of 2,4 dihydroxyl benzophenone
Pouring each component of getting material ready into stirrer stirs, and placing single screw extrusion machine, screw speed 42Hz is provided with temperature and is: 260 ℃ in a district, 260 ℃ in two districts, 270 ℃ in three districts, 270 ℃ in four districts, 270 ℃ in five districts, extruding pelletization promptly gets polycarbonate resin of the present invention.
The performance test results:
| Performance | Method | Unit | The result |
| Melting index | ??ASTMD1238 | ??g/10min | ??19 |
| Tensile strength | ??ASTMD638 | ??MPa | ??54 |
| Unit elongation | ??ASTMD638 | ??％ | ??181 |
| Bending strength | ??ASTMD790 | ??MPa | ??88 |
| Composite bending modulus | ??ASTMD790 | ??MPa | ??2231 |
| Notched Izod impact strength (1/8 ") | ??ASTMD256 | ??Kg·cm/cm | ??110 |
| Transparence | ??ASTMD386 | ??T | ??8.9 |
| Thermal distorsion temperature | ??ASTMD648 | ??℃ | ??123 |
Do not add astigmatic stablizer in the prescription, the melting index of polycarbonate raises as a result, and reductions such as shock strength, bending strength and tensile strength.
Comparative example two (not adding oxidation inhibitor)
The set of dispense ratio of according to the form below get the raw materials ready (1 part=100 gram):
100 parts of polycarbonate
3 parts of astigmatism stablizer EP-3000
0.03 part of 2,4 dihydroxyl benzophenone
025 0.1 parts of fire-retardant FR-2s
Pouring each component of getting material ready into stirrer stirs, and placing single screw extrusion machine, screw speed 42Hz is provided with temperature and is: 260 ℃ in a district, 260 ℃ in two districts, 270 ℃ in three districts, 270 ℃ in four districts, 270 ℃ in five districts, extruding pelletization promptly gets polycarbonate resin of the present invention.
The performance test results:
| Performance | Method | Unit | The result |
| Melting index | ??ASTMD1238 | ??g/10min | ??11 |
| Tensile strength | ??ASTMD638 | ??MPa | ??63 |
| Unit elongation | ??ASTMD638 | ??％ | ??191 |
| Bending strength | ??ASTMD790 | ??MPa | ??98 |
| Composite bending modulus | ??ASTMD790 | ??MPa | ??2345 |
| Performance | Method | Unit | The result |
| Notched Izod impact strength (1/8 ") | ??ASTMD256 | ??Kg·cm/cm | ??115 |
| Transparence | ??ASTMD386 | ??T | ??9.6 |
| Thermal distorsion temperature | ??ASTMD648 | ??℃ | ??133 |
Compare with embodiment one to four, there is not oxidation inhibitor in the prescription, performances such as the melting index of polycarbonate and shock strength, bending strength and tensile strength are constant substantially, illustrate that the astigmatic stablizer that the present invention uses can be used as a kind of oxidation inhibitor efficiently, the effect of oxidation inhibitor only is to prevent that plastics are subjected to thermal-oxidative degradation in the screw rod the inside, and the astigmatic stablizer that the present invention uses not only can play the effect of oxidation inhibitor and plays the stable effect of astigmatism simultaneously, be general oxidation inhibitor can't than with.
The above embodiment has only expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to claim of the present invention.Should be pointed out that for the person of ordinary skill of the art without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (7)
1. a polycarbonate resin composition for lighting tube material is characterized in that, meter comprises following component by weight:
100 parts of polycarbonate
Astigmatism stablizer 2-3 part
Fire-retardant FR-2 025 0.08-0.1 part
Oxidation inhibitor 0.1-0.2 part
UV light absorber 0.03-0.06 part.
2. fluorescent tube poly carbonate resin composition according to claim 1 is characterized in that, described polycarbonate is powdered, granulous or powdery and granulous miscellany.
3. fluorescent tube poly carbonate resin composition according to claim 1 is characterized in that, described astigmatic stablizer be selected from Y4156,
329, at least a among ECCOBOND DX-20, EP-3000, CN-801, EFKA-6225 or the BYK-163.
4. polycarbonate resin composition for lighting tube material according to claim 1 is characterized in that, described fire retardant is selected from least a among FR-1010, FR-3690, FR-202525 or the FR-KSS.
5. polycarbonate resin composition for lighting tube material according to claim 1, it is characterized in that, described oxidation inhibitor is to be selected from 4,4 '-thiobis (the 6-tertiary butyl-3-methylphenol), tris phosphite (2, the 4-di-tert-butyl-phenyl), at least a in four [β-(3,5 di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester.
6. polycarbonate resin composition for lighting tube material according to claim 1, it is characterized in that, described UV light absorber is to be selected from least a in Whitfield's ointment dihydroxyphenyl propane ester, 2-hydroxyl-4 n-octyloxies-benzophenone, 2,4 dihydroxyl benzophenone, 2-(2 '-dihydroxyl-the 3 '-tertiary butyl-5 '-the aminomethyl phenyl)-5-chlorobenzotriazole.
7. adopt the described polycarbonate resin composition for lighting tube material of claim 1 to prepare the method for polycarbonate resin, comprise following steps:
S1 gets the raw materials ready, and takes by weighing each component by pre-determined feed composition and weight thereof;
The S2 batch mixing is poured the material that takes by weighing among the step S1 in the stirrer into and to be stirred;
The S3 extruding pelletization places forcing machine to carry out extruding pelletization even stirred materials, and forcing machine Nei Ge district extrusion temperature is: a district 260-280 ℃, two district 270-280 ℃, three district 270-280 ℃, four district 270-300 ℃, five district 270-300 ℃.
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| CN103059544B (en) * | 2013-01-28 | 2015-06-10 | 余姚市慧点电子科技开发有限公司 | Preparation method of high-light-transmittance polycarbonate |
| CN103059544A (en) * | 2013-01-28 | 2013-04-24 | 浙江赛日新材料科技有限公司 | Preparation method of high-light-transmittance polycarbonate |
| CN103554863A (en) * | 2013-09-29 | 2014-02-05 | 深圳市耐明光电有限公司 | LED lampshade material polycarbonate resin composition and preparation method thereof |
| CN103772940A (en) * | 2014-01-06 | 2014-05-07 | 合肥杰事杰新材料股份有限公司 | Light aging resistant photodiffusion polycarbonate composite material and preparation method thereof |
| CN103897377A (en) * | 2014-03-27 | 2014-07-02 | 广州合成材料研究院有限公司 | Anti-aging photodiffusion PC (Poly Carbonate)-based resin and preparation method thereof |
| CN103897377B (en) * | 2014-03-27 | 2015-12-30 | 广州合成材料研究院有限公司 | A kind of anti-aging light diffusion PC base resin and preparation method thereof |
| WO2017000149A1 (en) * | 2015-06-30 | 2017-01-05 | 华东理工大学 | Polycarbonate resin composition, method for manufacturing same, and molded body |
| CN109054333A (en) * | 2018-07-24 | 2018-12-21 | 苏州环亚软管塑业有限公司 | A kind of preparation method of Domestic environment-protection type flame retardant plastics hose |
| US11499010B2 (en) | 2018-08-10 | 2022-11-15 | Lg Chem, Ltd. | Polycarbonate and preparation method thereof |
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