CN105440627A - Polycarbonate flame-retardant material with high light transmittance and preparation method thereof - Google Patents
Polycarbonate flame-retardant material with high light transmittance and preparation method thereof Download PDFInfo
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- CN105440627A CN105440627A CN201510918048.5A CN201510918048A CN105440627A CN 105440627 A CN105440627 A CN 105440627A CN 201510918048 A CN201510918048 A CN 201510918048A CN 105440627 A CN105440627 A CN 105440627A
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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
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- 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
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- 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
- C08J2369/00—Characterised by the use of polycarbonates; Derivatives of polycarbonates
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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
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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Abstract
The invention discloses a polycarbonate flame-retardant material with high light transmittance and a preparation method thereof. The polycarbonate flame-retardant material with high light transmittance is prepared from 40 to 70 parts of PC resin, 30 to 60 parts of transparent flame-retardant master batch, 0.2 to 1 part of an anti-oxidant and 0.5 to 1 part of a lubricant through mixing, extrusion and granulation. According to the invention, the transparent flame-retardant master batch is used to replace traditional fire retardant powder, so the prepared polycarbonate material has high light transmittance and excellent flame retardation performance and light transmittance and flame resistance are balanced; moreover, product shaping difficulty is reduced, beauty and safety of a product are improved; and the polycarbonate flame-retardant material has good rigidity and toughness and meets market demands.
Description
Technical field
The present invention relates to technical field of macromolecules, be specifically related to a kind of high-transmittance Polycarbonate flame retardant material and preparation method thereof.
Background technology
Along with the raising of quality of life, human consumer has higher requirement in outward appearance and safety and environmental protection to plastics.But, cause the case of fire too numerous to mention because the plastic casing of interior articles is on fire in life.Especially at present various countries have formulated harsher technological standard to the thermotolerance of electronic product material and flame retardant resistance.Meanwhile, in order to meet the application demand of the different occasion of material, as the pursuit to high-transmittance outward appearance, excellent shock strength, material supplier must develop according to the requirement of client the material that high-transmittance and practicality take into account.
Polycarbonate (PC) is a kind of armorphous thermoplastic resin of high comprehensive performance, has excellent electrical insulating property, extensibility, dimensional stability, and has higher intensity, thermotolerance and winter hardiness; Also have from putting out, the advantage such as nontoxic, easy coloring.But PC forming materials is difficult, flame retardant resistance does not reach the V0 rank of UL standard, poor fluidity, and flame retardant resistance and transparency can not get both.So polycarbonate starting material can not be directly used in electronic product, have to pass through special modification ability electronic product outward appearance more personalized, use safer and environment is not polluted.At present, people mostly use PC starting material material or sacrifice PC material transparent, make it meet the requirement of product simple function.The advantage of PC material is not brought into play like this, the inferior position of PC is not evaded yet.
At present, market has occurred a lot of schemes solving PC Flame Retardancy and transparency coexistence problems, but could not stably, effectively address this problem all the time, still existence or fire-retardant stability are not, or the PC material of poor transparency.
Summary of the invention
The object of the present invention is to provide a kind of high-transmittance Polycarbonate flame retardant material and preparation method thereof, while there is high-transmittance, there is excellent flame retardant resistance, make transparence and flame retardant resistance aspect reach balance.
For achieving the above object, present invention employs following technical scheme: a kind of high-transmittance Polycarbonate flame retardant material, is prepared from by following raw materials in parts by weight:
Polycarbonate 40-70 part;
Transparent flame-retarding master batch 30-60 part;
Oxidation inhibitor 0.2-1 part;
Lubricant 0.5-1 part;
Described transparent flame-retarding master batch is by fire retardant 20 parts, polycarbonate 80 parts, 0.2 part, oxidation inhibitor and lubricant 0.2 part is blended forms.
Further scheme, described fire retardant is organic phosphorus flame retardant or organic sulfonate based flame retardant.
Further scheme, described organic phosphorus flame retardant is dihydroxyphenyl propane-bis-(diphenyl phosphoester); Described organic sulfonate based flame retardant is at least one in potassium phenylsulphonyl benzene sulfonate, perfluorobutyl potassium, not halogen-containing aromatic sulphonate.
Described polycarbonate is aromatic copolycarbonate.
Described lubricant is at least one in polyethylene wax, stearate, montanin wax, pentaerythritol stearate.Wherein the kind of stearate is more, mainly refers to sodium stearate, Magnesium Stearate, calcium stearate, lead stearate, aluminum stearate, cadmium stearate, iron stearate, potassium stearate.
Described oxidation inhibitor is at least one in Hinered phenols antioxidant, monothioester kind antioxidant, phosphite ester kind antioxidant.
Described Hinered phenols antioxidant is β-positive octadecanol ester of (3,5-di-tert-butyl-hydroxy phenyl) propionic acid;
Monothioester kind antioxidant is the two lauryl (abbreviation anti-oxidant DLTP) of thio-2 acid;
Phosphite ester kind antioxidant is three (2,4-bis-trimethylphenylmethane base) phosphorous acid ester (abbreviation irgasfos 168).
Another goal of the invention of the present invention is to provide the preparation method of above-mentioned high-transmittance Polycarbonate flame retardant material, comprises the following steps:
(1) transparent flame-retarding master batch is prepared:
Polycarbonate, oxidation inhibitor, lubricant are added mixing machine high speed mixing 5-10 minute, then mixture is dropped in parallel double-screw extruder, simultaneously, fire retardant is added at the side spout of forcing machine by liquor pump, melting mixing under nitrogen protection, extrude finally by twin screw extruder, granulating and forming, obtained transparent flame-retarding master batch;
(2) the transparent flame-retarding master batch 30-60 part that will obtain in step (1), polycarbonate 40-70 part, oxidation inhibitor 0.2-1 part, lubricant 0.5-1 part; add the mixing of mixing machine high speed together after 5-10 minute; mixture is dropped in parallel double-screw extruder; melting mixing under nitrogen protection, through extruding, tie rod, pelletizing, homogenizing obtain high-transmittance Polycarbonate flame retardant material.
Further scheme, in described step (1), the barrel zone temperature of forcing machine is 210-240 DEG C; In described step (2), the barrel zone temperature of forcing machine is 240-260 DEG C.
The screw speed of described parallel double-screw extruder is 400-600r/min, vacuum tightness is-0.04-0.1MPa.
The high-transmittance Polycarbonate flame retardant material adopting technique scheme to prepare possesses following advantage:
1, adopt transparent flame-retarding master batch to replace traditional fire-retardant powder in the present invention, make the polycarbonate material obtained have high-transmittance and excellent flame retardant properties, reduce formed product difficulty, improve appearance looks elegant degree and the security of product;
2, the high-transmittance Polycarbonate flame retardant material prepared of the present invention is according to conventional sense standard detection, its molding shrinkage can adjust at 0.2-0.7% according to the practical situation of mold shrinkage, improve the degree of freedom of die design exploitation, reduce the risk that mold shrinkage deviation is brought; Its notched Izod impact strength is greater than 45J/m, modulus in flexure is greater than 2500MPa, demonstrates good rigidity and toughness;
3, the high-transmittance Polycarbonate flame retardant material prepared in the present invention, the raw material used is easy to get and can be directly used in suitability for industrialized production.
Embodiment
For better understanding the present invention, below in conjunction with specific embodiment, the present invention is further described.
Transparent flame-retarding master batch A is by aromatic copolycarbonate 80 parts, dihydroxyphenyl propane-bis-(diphenyl phosphoester) 20 parts, 0.2 part, oxidation inhibitor and lubricant 0.2 part is blended forms.
Transparent flame-retarding mother particle B is by aromatic copolycarbonate 99 parts, potassium phenylsulphonyl benzene sulfonate 1 part, 0.2 part, oxidation inhibitor and lubricant 0.2 part is blended forms.
embodiment 1
High-transmittance Polycarbonate flame retardant material in the present embodiment is made up of by weight following raw materials according:
| aromatic copolycarbonate | 60 parts; |
| transparent flame-retarding master batch A | 40 parts; |
| antioxidant 1076 | 0.1 part; |
| anti-oxidant DLTP | 0.2 part; |
| irgasfos 168 | 0.2 part; |
| lubricant PETS | 0.5 part. |
Concrete preparation method comprises the following steps:
(1) by 60 parts of aromatic copolycarbonates, 40 parts of transparent flame-retarding master batch A, 0.1 part of antioxidant 1076 (β-(3,5-di-tert-butyl-hydroxy phenyl) the positive octadecanol ester of propionic acid), 0.2 part of irgasfos 168 (three (2,4-di-t-butyl) phenyl-phosphite), 0.2 part of anti-oxidant DLTP (the two lauryl of thio-2 acid) and 0.5 part of lubricant PETS(pentaerythritol stearate), add the mixing machine high speed being connected with nitrogen protection and mix 2 minutes;
(2) under nitrogen protection, (1) mixture is dropped into melting in parallel double-screw extruder, through extruding, granulation, obtained high-transmittance Polycarbonate flame retardant material; Wherein the barrel zone temperature of forcing machine is 240-260 DEG C, and screw speed is 400r/min, and melt pressure is 1.5MPa, and vacuum tightness is-0.04MPa, i.e. obtained high-transmittance Polycarbonate flame retardant material.
embodiment 2
High-transmittance Polycarbonate flame retardant material in the present embodiment is made up of by weight following raw materials according:
| aromatic copolycarbonate | 70 parts; |
| transparent flame-retarding mother particle B | 30 parts; |
| antioxidant 1076 | 0.1 part; |
| irgasfos 168 | 0.2 part; |
| calcium stearate | 0.5 part. |
Concrete preparation method comprises the following steps:
(1) by 70 parts of aromatic copolycarbonates, 30 parts of transparent flame-retarding mother particle B, 0.1 part of antioxidant 1076 (β-(3,5-di-tert-butyl-hydroxy phenyl) the positive octadecanol ester of propionic acid), 0.2 part of irgasfos 168 (three (2,4-di-t-butyl) phenyl-phosphite) and 0.5 part of calcium stearate, add the mixing machine high speed being connected with nitrogen protection and mix 2 minutes;
(2) under nitrogen protection, (1) mixture is dropped into melting in parallel double-screw extruder, through extruding, granulation, obtained high-transmittance Polycarbonate flame retardant material; Wherein the barrel zone temperature of forcing machine is 240-260 DEG C, and screw speed is 400r/min, and melt pressure is 1.5MPa, and vacuum tightness is-0.04MPa, i.e. obtained high-transmittance Polycarbonate flame retardant material.
embodiment 3
High-transmittance Polycarbonate flame retardant material in the present embodiment is made up of by weight following raw materials according:
| aromatic copolycarbonate | 40 parts; |
| transparent flame-retarding master batch A | 60 parts; |
| antioxidant 1076 | 0.5 part; |
| anti-oxidant DLTP | 0.2 part; |
| irgasfos 168 | 0.3 part; |
| lubricant PETS | 0.5 part; |
| montanin wax | 0.5 part. |
Concrete preparation method comprises the following steps:
(1) by 40 parts of aromatic copolycarbonates, 60 parts of transparent flame-retarding master batch A, 0.5 part of antioxidant 1076 (β-(3,5-di-tert-butyl-hydroxy phenyl) the positive octadecanol ester of propionic acid), 0.3 part of irgasfos 168 (three (2,4-di-t-butyl) phenyl-phosphite), 0.2 part of anti-oxidant DLTP (the two lauryl of thio-2 acid), 0.5 part of lubricant PETS(pentaerythritol stearate), add the mixing machine high speed being connected with nitrogen protection and mix 2 minutes;
(2) under nitrogen protection, (1) mixture is dropped into melting in parallel double-screw extruder, through extruding, granulation, obtained high-transmittance Polycarbonate flame retardant material; Wherein the barrel zone temperature of forcing machine is 240-260 DEG C, and screw speed is 400r/min, and melt pressure is 1.5MPa, and vacuum tightness is-0.04MPa, i.e. obtained high-transmittance Polycarbonate flame retardant material.
embodiment 4
High-transmittance Polycarbonate flame retardant material in the present embodiment is made up of by weight following raw materials according:
| aromatic copolycarbonate | 50 parts; |
| transparent flame-retarding master batch A | 40 parts; |
| transparent flame-retarding mother particle B | 10 parts; |
| irgasfos 168 | 0.2 part; |
| lubricant PETS | 0.5 part. |
Concrete preparation method comprises the following steps:
(1) by 50 parts of aromatic copolycarbonates, 40 parts of transparent flame-retarding master batch A, 10 parts of transparent flame-retarding mother particle B, 0.2 part of irgasfos 168 (three (2,4-di-t-butyl) phenyl-phosphite) and 0.5 part of lubricant PETS(pentaerythritol stearate), add the mixing machine high speed being connected with nitrogen protection and mix 2 minutes;
(2) under nitrogen protection, (1) mixture is dropped into melting in parallel double-screw extruder, through extruding, granulation, obtained high-transmittance Polycarbonate flame retardant material; Wherein the barrel zone temperature of forcing machine is 240-260 DEG C, screw rod the best for rotating speed be 600r/min, melt pressure is 1.5MPa, and optimal vacuum pressure is-0.1MPa, namely obtain high-transmittance Polycarbonate flame retardant material.
As at functional agents such as adding ultraviolet absorbers, photostabilizer, static inhibitor, tinting material of preparing in component of the present invention, make matrix material have individual features and also protect by the present invention.
Select clear polycarbonate (PC) as a comparison case.According to correlation detection standard, the high-transmittance Polycarbonate flame retardant material obtained to specific embodiment 1-4 is tested, main test physical index is as follows: tensile strength, elongation at break, flexural strength, modulus in flexure, Izod notched impact are strong, density, shrinking percentage and transmittance, its examination criteria and detected result as shown in table 1:
Table 1: the main physical index of material
As known from Table 1, the tensile strength of high-transmittance Polycarbonate flame retardant material prepared of the present invention and flexural strength are all higher than clear polycarbonate in comparative example; When transmittance is identical, Flame Retardancy prepared by the present invention can be better than the flame retardant properties of comparative example clear polycarbonate greatly.
Described embodiment is not limited only to protection scope of the present invention, all modify based on basic thought of the present invention or change all belong to protection scope of the present invention.
Claims (10)
1. a high-transmittance Polycarbonate flame retardant material, is characterized in that: be prepared from by following raw materials in parts by weight:
Polycarbonate 40-70 part;
Transparent flame-retarding master batch 30-60 part;
Oxidation inhibitor 0.2-1 part;
Lubricant 0.5-1 part;
Described transparent flame-retarding master batch forms by following raw materials according is blended by weight:
Fire retardant 20 parts, polycarbonate 80 parts, 0.2 part, oxidation inhibitor and lubricant 0.2 part.
2. high-transmittance Polycarbonate flame retardant material according to claim 1, is characterized in that: described fire retardant is organic phosphorus flame retardant or organic sulfonate based flame retardant.
3. high-transmittance Polycarbonate flame retardant material according to claim 2, is characterized in that: described organic phosphorus flame retardant is dihydroxyphenyl propane-bis-(diphenyl phosphoester); Described organic sulfonate based flame retardant is at least one in potassium phenylsulphonyl benzene sulfonate, perfluorobutyl potassium, not halogen-containing aromatic sulphonate.
4. high-transmittance Polycarbonate flame retardant material according to claim 1, is characterized in that: described polycarbonate is aromatic copolycarbonate.
5. high-transmittance Polycarbonate flame retardant material according to claim 1, is characterized in that: described lubricant is at least one in polyethylene wax, stearate, montanin wax, pentaerythritol stearate.
6. high-transmittance Polycarbonate flame retardant material according to claim 1, is characterized in that: described oxidation inhibitor is at least one in Hinered phenols antioxidant, monothioester kind antioxidant, phosphite ester kind antioxidant.
7. high-transmittance Polycarbonate flame retardant material according to claim 5, is characterized in that: described Hinered phenols antioxidant is β-positive ten caprylates of (3,5 di-tert-butyl-hydroxy phenyl) propionic acid;
Monothioester kind antioxidant is the two lauryl of thio-2 acid;
Phosphite ester kind antioxidant is three (2,4-bis-trimethylphenylmethane base) phosphorous acid ester.
8. prepare a method for the high-transmittance Polycarbonate flame retardant material as described in any one of claim 1-6, it is characterized in that: comprise the following steps:
(1) transparent flame-retarding master batch is prepared:
Polycarbonate, oxidation inhibitor, lubricant are added mixing machine high speed mixing 5-10 minute, then mixture is dropped in parallel double-screw extruder, simultaneously, fire retardant is added at the side spout of forcing machine by liquor pump, melting mixing under nitrogen protection, extrude finally by twin screw extruder, granulating and forming, obtained transparent flame-retarding master batch;
(2) the transparent flame-retarding master batch 30-60 part that will obtain in step (1), polycarbonate 40-70 part, oxidation inhibitor 0.2-1 part, lubricant 0.5-1 part; add the mixing of mixing machine high speed together after 5-10 minute; mixture is dropped in parallel double-screw extruder; melting mixing under nitrogen protection, through extruding, tie rod, pelletizing, homogenizing obtain high-transmittance Polycarbonate flame retardant material.
9. preparation method according to claim 7, is characterized in that: in described step (1), the barrel zone temperature of forcing machine is 210-240 DEG C; In described step (2), the barrel zone temperature of forcing machine is 240-260 DEG C.
10. preparation method according to claim 7, is characterized in that: the screw speed of described parallel double-screw extruder is 400-600r/min, vacuum tightness is-0.04-0.1MPa.
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Cited By (8)
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| CN106751677A (en) * | 2016-12-25 | 2017-05-31 | 合肥会通新材料有限公司 | A kind of fire-retardant miberal powder filled polycarbonate material of superhigh tenacity and preparation method thereof |
| CN108117735A (en) * | 2018-01-17 | 2018-06-05 | 北京濮源新材料技术研究院(普通合伙) | High-performance halogen-free flame retardant makrolon material and preparation method thereof |
| CN108219427A (en) * | 2018-01-17 | 2018-06-29 | 北京濮源新材料技术研究院(普通合伙) | Biological grade transparent flame-retardant polycarbonate compound and preparation method thereof |
| CN109082093A (en) * | 2018-06-21 | 2018-12-25 | 北京濮源新材料技术研究院(普通合伙) | Abrasion-resistant clear flame-retardant polycarbonate material and preparation method thereof |
| CN109438865A (en) * | 2018-10-24 | 2019-03-08 | 海信容声(广东)冰箱有限公司 | A kind of transparent modified resin, lampshade and preparation method thereof |
| CN109572117A (en) * | 2018-12-06 | 2019-04-05 | 嘉兴领科材料技术有限公司 | A kind of flame-retarding high performance light composite board and preparation method thereof for aviation interior trim |
| CN110330779A (en) * | 2019-08-02 | 2019-10-15 | 横店集团得邦工程塑料有限公司 | A kind of permanent high light transmission fire retardant PC composition material and preparation method thereof |
| CN113527859A (en) * | 2021-08-20 | 2021-10-22 | 四川泸天化创新研究院有限公司 | Chemical-resistant polycarbonate and preparation method thereof |
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| CN106751677A (en) * | 2016-12-25 | 2017-05-31 | 合肥会通新材料有限公司 | A kind of fire-retardant miberal powder filled polycarbonate material of superhigh tenacity and preparation method thereof |
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| CN109438865A (en) * | 2018-10-24 | 2019-03-08 | 海信容声(广东)冰箱有限公司 | A kind of transparent modified resin, lampshade and preparation method thereof |
| CN109572117A (en) * | 2018-12-06 | 2019-04-05 | 嘉兴领科材料技术有限公司 | A kind of flame-retarding high performance light composite board and preparation method thereof for aviation interior trim |
| CN110330779A (en) * | 2019-08-02 | 2019-10-15 | 横店集团得邦工程塑料有限公司 | A kind of permanent high light transmission fire retardant PC composition material and preparation method thereof |
| CN113527859A (en) * | 2021-08-20 | 2021-10-22 | 四川泸天化创新研究院有限公司 | Chemical-resistant polycarbonate and preparation method thereof |
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Application publication date: 20160330 |