CN102850753A - Preparation method of halogen-free flame-retardant glass fiber reinforced polycarbonate alloy material - Google Patents
Preparation method of halogen-free flame-retardant glass fiber reinforced polycarbonate alloy material Download PDFInfo
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- CN102850753A CN102850753A CN2012103533210A CN201210353321A CN102850753A CN 102850753 A CN102850753 A CN 102850753A CN 2012103533210 A CN2012103533210 A CN 2012103533210A CN 201210353321 A CN201210353321 A CN 201210353321A CN 102850753 A CN102850753 A CN 102850753A
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Abstract
Belonging to the technical field of high polymer material preparation, the invention relates to a preparation method of a halogen-free flame-retardant glass fiber reinforced polycarbonate alloy material. The method includes: placing weighed 40-60 parts of polycarbonate resin into a drying machine to dry it, then weighing 11-16 parts of a flexibilizer, 5-8 parts of a rubber component, 4-6 parts of a compatilizer, 0.2-0.5 part of an antioxidant, 2-5 parts of superfine calcium carbonate, 15-24 parts of a composite phosphate, 3-5 parts of a metal oxide, 7-11 parts of glass fiber, and 0.4-0.7 part of a lubricating agent, and putting them into a high-speed mixer to conduct mixing, then transferring the mixture to a twin-screw extruder to carry out melt extrusion, controlling the first zone of the twin-screw extruder at 262DEG C, the second zone at 267DEG C, the third zone at 272DEG C, the fourth zone at 277DEG C, the fifth zone at 282DEG C, the sixth zone at 287DEG C, the seventh zone at 292DEG C, the eighth zone at 290DEG C and the ninth zone at 290DEG C, and subjecting the material from a die to water tank cooling and pelletizing so as to obtain the halogen-free flame-retardant glass fiber reinforced polycarbonate alloy material, which has a high modulus and high rigidity, and is suitable for production of high precision-requiring automobile parts.
Description
Technical field
The invention belongs to field of polymer material preparing technology, be specifically related to a kind of preparation method of glass fiber reinforced polycarbonate alloy material of halogen-free flameproof.
Background technology
In recent years, polycarbonate alloy class material obtained to use widely and was used in a large number automobile component and office equipment.Yet after long-time use, polycarbonate material exists size poor rigidity, shortcoming that linear expansivity is large, in order to improve the polycarbonate material rigidity, uses glass fibre to mix with polycarbonate.Can significantly improve in this way the modulus of polycarbonate article, and the goods working accuracy.
In addition, the polycarbonate material flame retardant resistance shortcoming in the prior art is necessary to carry out modification, so that it satisfies fire-retardant requirement.CN101041738A discloses a kind of fire-retardant polycarbonate alloy material, has used brominated fire retardant, during this based flame retardant burning, produces thick smoke, and produces again toxic gas simultaneously, has a strong impact on safety.Therefore, the polycarbonate alloy material of preparation Halogen can be subject to the industry favor undoubtedly.
Summary of the invention
Task of the present invention provides a kind of preparation method of glass fiber reinforced polycarbonate alloy material of halogen-free flameproof, and the polycarbonate alloy material that is obtained by the method has that the coefficient of expansion is low, high-modulus and not halogen-containing and embodied Environmental Safety.
Task of the present invention is finished like this, a kind of preparation method of glass fiber reinforced polycarbonate alloy material of halogen-free flameproof, it is 40 ~ 60 parts of input dryers of polycarbonate resin that will take by weighing by weight first, at 120 ℃ of lower oven dry 180min, then in company with 11 ~ 16 parts of the toughner that takes by weighing by weight, 5 ~ 8 parts of rubber components, 4 ~ 6 parts of compatilizers, 0.2 ~ 0.5 part in oxidation inhibitor, 2 ~ 5 parts of calcium carbonate superfine powders, 15 ~ 24 parts of composite phosphates, 3 ~ 5 parts of metal oxides, mix 11min in 7 ~ 11 parts in glass fibre and 0.4 ~ 0.7 part of input high-speed mixer of lubricant, then being transferred to twin screw extruder melt extrudes, the temperature in one district to nine district of twin screw extruder is controlled to be: 262 ℃ of district's temperature, 267 ℃ of two district's temperature, 272 ℃ of three district's temperature, 277 ℃ of four district's temperature, 282 ℃ of five district's temperature, 287 ℃ of six district's temperature, 292 ℃ of seven district's temperature, 290 ℃ of 290 ℃ of He Jiu districts of eight district's temperature temperature, come from the material of mouthful mould through the tank cooling, obtain the glass fiber reinforced polycarbonate alloy material of halogen-free flameproof after the pelletizing.
In a specific embodiment of the present invention, described polycarbonate resin is the bisphenol A polycarbonate resin.
In another specific embodiment of the present invention, described toughner is acrylonitrile-butadiene-styrene copolymer.
In another specific embodiment of the present invention, described rubber component is SIS/SEBS, and wherein olefin(e) centent is 71%.
In another specific embodiment of the present invention, described compatilizer is the styrene-ethylene-butadiene-styrene of maleic anhydride graft, and its percentage of grafting is 0.8%.
Also have in the specific embodiment of the present invention, described oxidation inhibitor is composite antioxidant 215.
More of the present invention and in specific embodiment, described calcium carbonate superfine powder is surface treated activated Calcium carbonate.
In of the present invention and then specific embodiment, described composite phosphate is that 70% ammonium polyphosphate and mass percent are the mixture that 30% trimeric cyanamide urate forms by mass percent; Described metal oxide is antimonous oxide.
Of the present invention again more and in specific embodiment, described glass fibre is length 3mm alkali free glass fibre.
In again of the present invention and then specific embodiment, described lubricant is two stearic amides.
Glass fiber reinforced polycarbonate alloy material by the halogen-free flameproof of the inventive method preparation has anti-high-modulus, and higher rigidity is fit to the higher automobile component of production accuracy requirement.Flexural strength 120 ~ 140MPa, modulus in flexure 3500 ~ 4200MPa, elongation at break 7 ~ 15%, notched Izod impact strength 11 ~ 16KJ/m
2, under-40 ℃, 130～140 ℃ of heat-drawn wires, flame retardant resistance reach V-0 (UL-94-1.6mm).
Embodiment
Embodiment 1:
40 parts of input dryers of the bisphenol A polycarbonate resin that will take by weighing by weight first, at 120 ℃ of lower oven dry 180min, then in company with 16 parts of the acrylonitrile-butadiene-styrene copolymers that takes by weighing by weight, olefin(e) centent is 6 parts of 71% SIS/SEBSs, maleic anhydride graft, and percentage of grafting is 4 parts of styrene-ethylene-butadiene-styrenes of 0.8%, 215 0.5 parts of composite antioxidants, 2 parts of surface treated activated Calcium carbonates, be that 70% ammonium polyphosphate and mass percent are 18 parts of the mixtures that form of 30% trimeric cyanamide urate by mass percent, 5 parts of antimonous oxides, length is to mix 11min in 7 parts of the alkali free glass fibres of 3mm and two 0.4 part of input high-speed mixer of stearic amide, then being transferred to twin screw extruder melt extrudes, the temperature in one district to nine district of twin screw extruder is controlled to be: 262 ℃ of district's temperature, 267 ℃ of two district's temperature, 272 ℃ of three district's temperature, 277 ℃ of four district's temperature, 282 ℃ of five district's temperature, 287 ℃ of six district's temperature, 292 ℃ of seven district's temperature, 290 ℃ of 290 ℃ of He Jiu districts of eight district's temperature temperature, come from the material of mouthful mould through the tank cooling, obtain the glass fiber reinforced polycarbonate alloy material of halogen-free flameproof after the pelletizing.
Embodiment 2:
60 parts of input dryers of the bisphenol A polycarbonate resin that will take by weighing by weight first, at 120 ℃ of lower oven dry 180min, then in company with 11 parts of the acrylonitrile-butadiene-styrene copolymers that takes by weighing by weight, olefin(e) centent is 8 parts of 71% SIS/SEBSs, maleic anhydride graft, and percentage of grafting is 6 parts of styrene-ethylene-butadiene-styrenes of 0.8%, 215 0.2 parts of composite antioxidants, 5 parts of surface treated activated Calcium carbonates, be that 70% ammonium polyphosphate and mass percent are 15 parts of the mixtures that form of 30% trimeric cyanamide urate by mass percent, 3 parts of antimonous oxides, length is to mix 11min in 11 parts of the alkali free glass fibres of 3mm and two 0.5 part of input high-speed mixer of stearic amide, then be transferred to twin screw extruder and melt extrude, all the other are all with the description to embodiment 1.
Embodiment 3:
45 parts of input dryers of the bisphenol A polycarbonate resin that will take by weighing by weight first, at 120 ℃ of lower oven dry 180min, then in company with 13 parts of the acrylonitrile-butadiene-styrene copolymers that takes by weighing by weight, olefin(e) centent is 5 parts of 71% SIS/SEBSs, maleic anhydride graft, and percentage of grafting is 5 parts of styrene-ethylene-butadiene-styrenes of 0.8%, 215 0.4 parts of composite antioxidants, 3 parts of surface treated activated Calcium carbonates, be that 70% ammonium polyphosphate and mass percent are 24 parts of the mixtures that form of 30% trimeric cyanamide urate by mass percent, 4 parts of antimonous oxides, length is to mix 11min in 8 parts of the alkali free glass fibres of 3mm and two 0.7 part of input high-speed mixer of stearic amide, then be transferred to twin screw extruder and melt extrude, all the other are all with the description to embodiment 1.
Embodiment 4:
55 parts of input dryers of the bisphenol A polycarbonate resin that will take by weighing by weight first, at 120 ℃ of lower oven dry 180min, be 71% 7 parts of SIS/SEBSs, maleic anhydride graft in company with 14 parts of the acrylonitrile-butadiene-styrene copolymers, the olefin(e) centent that take by weighing by weight then, and percentage of grafting is styrene-ethylene-butadiene-styrene 5 of 0.8%.5 parts, 215 0.3 parts of composite antioxidants, 4 parts of surface treated activated Calcium carbonates, be that 70% ammonium polyphosphate and mass percent are 21 parts of mixtures, the antimonous oxide 4 that 30% trimeric cyanamide urate forms by mass percent.5 parts, length are to mix 11min in 10 parts of the alkali free glass fibres of 3mm and 0.6 part of input high-speed mixer of two stearic amide, then are transferred to twin screw extruder and melt extrude, and all the other are all with the description to embodiment 1.
The glass fiber reinforced polycarbonate alloy material of the halogen-free flameproof that is obtained by above-described embodiment 1 to 4 has the technical indicator shown in the following table after tested:
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | |
| Flexural strength MPa | 122 | 128 | 135 | 138 |
| Modulus in flexure MPa | 3550 | 3820 | 4050 | 4150 |
| Elongation at break % | 8 | 10 | 13 | 15 |
| Notched Izod impact strength KJ/m 2 | 11.5 | 13.4 | 14.6 | 15.5 |
| Heat-drawn wire ℃ | 130 | 133 | 135 | 138 |
| Flame retardant resistance (UL-94-1.6mm) | V-0 | V-0 | V-0 | V-0 |
Claims (10)
1.
A kind of preparation method of glass fiber reinforced polycarbonate alloy material of halogen-free flameproof, it is characterized in that it is 40 ~ 60 parts of input dryers of polycarbonate resin that will take by weighing by weight first, at 120 ℃ of lower oven dry 180min, then in company with 11 ~ 16 parts of the toughner that takes by weighing by weight, 5 ~ 8 parts of rubber components, 4 ~ 6 parts of compatilizers, 0.2 ~ 0.5 part in oxidation inhibitor, 2 ~ 5 parts of calcium carbonate superfine powders, 15 ~ 24 parts of composite phosphates, 3 ~ 5 parts of metal oxides, mix 11min in 7 ~ 11 parts in glass fibre and 0.4 ~ 0.7 part of input high-speed mixer of lubricant, then being transferred to twin screw extruder melt extrudes, the temperature in one district to nine district of twin screw extruder is controlled to be: 262 ℃ of district's temperature, 267 ℃ of two district's temperature, 272 ℃ of three district's temperature, 277 ℃ of four district's temperature, 282 ℃ of five district's temperature, 287 ℃ of six district's temperature, 292 ℃ of seven district's temperature, 290 ℃ of 290 ℃ of He Jiu districts of eight district's temperature temperature, come from the material of mouthful mould through the tank cooling, obtain the glass fiber reinforced polycarbonate alloy material of halogen-free flameproof after the pelletizing.
2.
The preparation method of the glass fiber reinforced polycarbonate alloy material of halogen-free flameproof according to claim 1 is characterized in that described polycarbonate resin is the bisphenol A polycarbonate resin.
3.
The preparation method of the glass fiber reinforced polycarbonate alloy material of halogen-free flameproof according to claim 1 is characterized in that described toughner is acrylonitrile-butadiene-styrene copolymer.
4.
The preparation method of the glass fiber reinforced polycarbonate alloy material of halogen-free flameproof according to claim 1 is characterized in that described rubber component is SIS/SEBS, and wherein olefin(e) centent is 71%.
5.
The preparation method of the glass fiber reinforced polycarbonate alloy material of halogen-free flameproof according to claim 1 in another specific embodiment of the present invention, it is characterized in that described compatilizer is the styrene-ethylene-butadiene-styrene of maleic anhydride graft, its percentage of grafting is 0.8%.
6.
The preparation method of the glass fiber reinforced polycarbonate alloy material of halogen-free flameproof according to claim 1 is characterized in that described oxidation inhibitor is composite antioxidant 215.
7.
The preparation method of the glass fiber reinforced polycarbonate alloy material of halogen-free flameproof according to claim 1 is characterized in that described calcium carbonate superfine powder is surface treated activated Calcium carbonate.
8.
The preparation method of the glass fiber reinforced polycarbonate alloy material of halogen-free flameproof according to claim 1 is characterized in that described composite phosphate is that 70% ammonium polyphosphate and mass percent are the mixture that 30% trimeric cyanamide urate forms by mass percent; Described metal oxide is antimonous oxide.
9.
The preparation method of the glass fiber reinforced polycarbonate alloy material of halogen-free flameproof according to claim 1 is characterized in that described glass fibre is length 3mm alkali free glass fibre.
10.
The preparation method of the glass fiber reinforced polycarbonate alloy material of halogen-free flameproof according to claim 1 is characterized in that described lubricant is two stearic amides
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| CN2012103533210A CN102850753A (en) | 2012-09-21 | 2012-09-21 | Preparation method of halogen-free flame-retardant glass fiber reinforced polycarbonate alloy material |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104031371A (en) * | 2013-03-04 | 2014-09-10 | 苏州宇度医疗器械有限责任公司 | Preparation method for halogen-free flame-retardant glass fiber-reinforced polycarbonate alloy material |
| CN116478524A (en) * | 2023-04-28 | 2023-07-25 | 金发科技股份有限公司 | Polycarbonate composition and preparation method and application thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101343407A (en) * | 2008-08-22 | 2009-01-14 | 常熟东南塑料有限公司 | Halogen-free flame-proof unsaturated polyester molding compound |
| CN102649872A (en) * | 2011-02-23 | 2012-08-29 | 苏州汉扬精密电子有限公司 | Modified PC (Poly Carbonate)/ABS (Acrylonitrile Butadiene Styrene) alloy |
-
2012
- 2012-09-21 CN CN2012103533210A patent/CN102850753A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101343407A (en) * | 2008-08-22 | 2009-01-14 | 常熟东南塑料有限公司 | Halogen-free flame-proof unsaturated polyester molding compound |
| CN102649872A (en) * | 2011-02-23 | 2012-08-29 | 苏州汉扬精密电子有限公司 | Modified PC (Poly Carbonate)/ABS (Acrylonitrile Butadiene Styrene) alloy |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104031371A (en) * | 2013-03-04 | 2014-09-10 | 苏州宇度医疗器械有限责任公司 | Preparation method for halogen-free flame-retardant glass fiber-reinforced polycarbonate alloy material |
| CN116478524A (en) * | 2023-04-28 | 2023-07-25 | 金发科技股份有限公司 | Polycarbonate composition and preparation method and application thereof |
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Application publication date: 20130102 |