CN102850758A - Preparation method of flame retardant transparent polycarbonate/polymethyl methacrylate alloy material - Google Patents
Preparation method of flame retardant transparent polycarbonate/polymethyl methacrylate alloy material Download PDFInfo
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- CN102850758A CN102850758A CN2012103534355A CN201210353435A CN102850758A CN 102850758 A CN102850758 A CN 102850758A CN 2012103534355 A CN2012103534355 A CN 2012103534355A CN 201210353435 A CN201210353435 A CN 201210353435A CN 102850758 A CN102850758 A CN 102850758A
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Abstract
Belonging to the technical field of high polymer material preparation, the invention relates to a preparation method of a flame retardant transparent polycarbonate/polymethyl methacrylate alloy material. The method consists of: first weighing 130-145 parts of polycarbonate resin and placing it into a drying box to conduct drying, then weighing 27-31 parts of polymethyl methacrylate, 8.5-11 parts of a compatilizer, 20-25 parts of phosphate ester, 0.3-0.8 part of a compounded antioxidant and 0.5-1.0 part of a lubricating agent and putting them into a high-speed mixer to carry out mixing, then transferring the mixture into a twin-screw extruder to perform melt extrusion, controlling the first zone of the twin-screw extruder at a temperature of 265DEG C, the second zone at 272DEG C, the third zone at 277DEG C, the fourth zone at 283DEG C, the fifth zone at 288DEG C, the sixth zone at 288DEG C, the seventh zone at 288DEG C and the eighth zone at 288DEG C, and subjecting the material from a die to trough cooling and pelletizing, thus obtaining the flame retardant transparent polycarbonate/polymethyl methacrylate alloy material, which has the characteristics of high light transmittance, flame retardance, high temperature resistance and the like.
Description
Technical field
The invention belongs to field of polymer material preparing technology, be specifically related to the preparation method of a kind of fire-retardant clear polycarbonate/polymethylmethacrylate alloy material.
Background technology
Polycarbonate resin has excellent performance, and its impact is than more excellent in the thermoplastic material.Up to 91 ~ 92%, weather resisteant is good to visible light transmittance rate for plexiglass, be to make the desirable material of Transparent Parts, but plexiglass thermal change type temperature is low, usually is restricted when using.Polycarbonate and polymethylmethacrylate are merged, produce a kind of alloy material of transparent, fire-retardant, great thermotolerance, can expand its application in industrial circle.The technical scheme that the present invention will introduce below produces under this background.
Summary of the invention
Task of the present invention is to provide the preparation method of a kind of fire-retardant clear polycarbonate/polymethylmethacrylate alloy material, and the material that is obtained by the method has strong point high, fire-retardant to visible light transmittance rate, great thermotolerance.
Task of the present invention is finished like this, the preparation method of a kind of fire-retardant clear polycarbonate/polymethylmethacrylate alloy material, it is the dry 110min of 130 ~ 145 parts of inputs of polycarbonate resin drying baker that will take by weighing by weight first, again with 27 ~ 31 parts of the polymethylmethacrylates that takes by weighing by weight, 8.5 ~ 11 parts of compatilizers, 20 ~ 25 parts of phosphoric acid ester, mix 4-5min in 0.3 ~ 0.8 part in composite oxidation inhibitor and 0.5 ~ 1.0 part of input high-speed mixer of lubricant, then be transferred in the twin screw extruder and melt extrude, the temperature in one district to eight district of twin screw extruder is controlled to be: 265 ℃ of district's temperature, 272 ℃ of two district's temperature, 277 ℃ of three district's temperature, 283 ℃ of four district's temperature, 288 ℃ of five district's temperature, 288 ℃ of six district's temperature, 288 ℃ of 288 ℃ of He Ba districts of seven district's temperature temperature, come from the material of mouthful mould through the tank cooling, obtain fire-retardant clear polycarbonate/polymethylmethacrylate alloy material 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, the polymethylmethacrylate that described poly-methylpropanoic acid methyl esters is general purpose grade.
In another specific embodiment of the present invention, described compatilizer is the polystyrene resin of maleic anhydride graft.
In another specific embodiment of the present invention, described phosphoric acid ester is resorcinol tetraphenyldiphosphate.
Also have in the specific embodiment of the present invention, described composite oxidation inhibitor is the mixture of four [β-(3,5-di-t-butyl-4 phenyl) propionic acid] pentaerythritol ester composition of 50% for being 50% three ［ 2.4-di-tert-butyl-phenyl ］ phosphorous acid by mass percent with mass percent.
More of the present invention and in specific embodiment, described lubricant is polyethylene wax.
Have transmittance height, fire-retardant, heatproof high by the fire-retardant clear polycarbonate of the inventive method preparation/polymethylmethacrylate alloy material.Tensile strength 53 ~ 58MPa, transmittance be greater than 90%, flame retardant resistance V-1 (1.6mm).
Embodiment
Embodiment 1:
130 parts of inputs of the bisphenol A polycarbonate resin that will take by weighing by weight first oven drying 110min, again in company with 31 parts of the polymethylmethacrylates of the general purpose grade that takes by weighing by weight, 9.5 parts of the polystyrene resins of maleic anhydride graft, 20 parts of resorcinol tetraphenyldiphosphates, mass percent respectively is three ［ 2.4-di-tert-butyl-phenyl ］ phosphorous acid and four [β-(3 of 50%, 5-di-t-butyl-4 phenyl) propionic acid] mix 4-5min in 0.8 part in the mixture of pentaerythritol ester and 0.5 part of input high-speed mixer of polyethylene wax, then be transferred in the twin screw extruder and melt extrude, the temperature in one district to eight district of twin screw extruder is controlled to be: 265 ℃ of district's temperature, 272 ℃ of two district's temperature, 277 ℃ of three district's temperature, 283 ℃ of four district's temperature, 288 ℃ of five district's temperature, 288 ℃ of six district's temperature, 288 ℃ of 288 ℃ of He Ba districts of seven district's temperature temperature, come from the material of mouthful mould through the tank cooling, obtain fire-retardant clear polycarbonate/polymethylmethacrylate alloy material after the pelletizing.
Embodiment 2:
145 parts of inputs of the bisphenol A polycarbonate resin that will take by weighing by weight first oven drying 110min, again in company with 27 parts of the polymethylmethacrylates of the general purpose grade that takes by weighing by weight, 8.5 parts of the polystyrene resins of maleic anhydride graft, 25 parts of resorcinol tetraphenyldiphosphates, mass percent respectively is three ［ 2.4-di-tert-butyl-phenyl ］ phosphorous acid and four [β-(3 of 50%, 5-di-t-butyl-4 phenyl) propionic acid] mix 4-5min in 0.5 part in the mixture of pentaerythritol ester and 1 part of input high-speed mixer of polyethylene wax, then be transferred in the twin screw extruder and melt extrude, all the other are all with the description to embodiment 1.
Embodiment 3:
135 parts of inputs of the bisphenol A polycarbonate resin that will take by weighing by weight first oven drying 110min, again in company with 28 parts of the polymethylmethacrylates of the general purpose grade that takes by weighing by weight, 11 parts of the polystyrene resins of maleic anhydride graft, 22 parts of resorcinol tetraphenyldiphosphates, mass percent respectively is three ［ 2.4-di-tert-butyl-phenyl ］ phosphorous acid and four [β-(3 of 50%, 5-di-t-butyl-4 phenyl) propionic acid] mix 4-5min in 0.3 part in the mixture of pentaerythritol ester and 0.7 part of input high-speed mixer of polyethylene wax, then be transferred in the twin screw extruder and melt extrude, all the other are all with the description to embodiment 1.
Embodiment 4:
140 parts of inputs of the bisphenol A polycarbonate resin that will take by weighing by weight first oven drying 110min, again in company with 29 parts of the polymethylmethacrylates of the general purpose grade that takes by weighing by weight, 10 parts of the polystyrene resins of maleic anhydride graft, 23 parts of resorcinol tetraphenyldiphosphates, mass percent respectively is three ［ 2.4-di-tert-butyl-phenyl ］ phosphorous acid and four [β-(3 of 50%, 5-di-t-butyl-4 phenyl) propionic acid] mix 4-5min in 0.6 part in the mixture of pentaerythritol ester and 0.9 part of input high-speed mixer of polyethylene wax, then be transferred in the twin screw extruder and melt extrude, all the other are all with the description to embodiment 1.
The fire-retardant clear polycarbonate that is obtained by above-described embodiment 1 to 4/polymethylmethacrylate alloy material has the technique effect shown in the following table after tested:
Claims (7)
1.
The preparation method of a kind of fire-retardant clear polycarbonate/polymethylmethacrylate alloy material, it is characterized in that it is the dry 110min of 130 ~ 145 parts of inputs of polycarbonate resin drying baker that will take by weighing by weight first, again with 27 ~ 31 parts of the polymethylmethacrylates that takes by weighing by weight, 8.5 ~ 11 parts of compatilizers, 20 ~ 25 parts of phosphoric acid ester, mix 4-5min in 0.3 ~ 0.8 part in composite oxidation inhibitor and 0.5 ~ 1.0 part of input high-speed mixer of lubricant, then be transferred in the twin screw extruder and melt extrude, the temperature in one district to eight district of twin screw extruder is controlled to be: 265 ℃ of district's temperature, 272 ℃ of two district's temperature, 277 ℃ of three district's temperature, 283 ℃ of four district's temperature, 288 ℃ of five district's temperature, 288 ℃ of six district's temperature, 288 ℃ of 288 ℃ of He Ba districts of seven district's temperature temperature, come from the material of mouthful mould through the tank cooling, obtain fire-retardant clear polycarbonate/polymethylmethacrylate alloy material after the pelletizing.
2.
The preparation method of fire-retardant clear polycarbonate according to claim 1/polymethylmethacrylate alloy material is characterized in that described polycarbonate resin is the bisphenol A polycarbonate resin.
3.
The preparation method of fire-retardant clear polycarbonate according to claim 1/polymethylmethacrylate alloy material is characterized in that the polymethylmethacrylate that described poly-methylpropanoic acid methyl esters is general purpose grade.
4.
The preparation method of fire-retardant clear polycarbonate according to claim 1/polymethylmethacrylate alloy material is characterized in that described compatilizer is the polystyrene resin of maleic anhydride graft.
5.
The preparation method of fire-retardant clear polycarbonate according to claim 1/polymethylmethacrylate alloy material is characterized in that described phosphoric acid ester is resorcinol tetraphenyldiphosphate.
6.
The preparation method of fire-retardant clear polycarbonate according to claim 1/polymethylmethacrylate alloy material, it is characterized in that described composite oxidation inhibitor is the mixture of four [β-(3,5-di-t-butyl-4 phenyl) propionic acid] pentaerythritol ester composition of 50% for being 50% three ［ 2.4-di-tert-butyl-phenyl ］ phosphorous acid by mass percent with mass percent.
7.
The preparation method of fire-retardant clear polycarbonate according to claim 1/polymethylmethacrylate alloy material is characterized in that described lubricant is polyethylene wax
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| CN2012103534355A CN102850758A (en) | 2012-09-21 | 2012-09-21 | Preparation method of flame retardant transparent polycarbonate/polymethyl methacrylate alloy material |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105778379A (en) * | 2016-05-12 | 2016-07-20 | 广东东华光电科技有限公司 | Flexible mirror |
| CN112625418A (en) * | 2020-12-03 | 2021-04-09 | 苏州奥美材料科技有限公司 | Low-phase-difference polycarbonate and polymethyl methacrylate composite film and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101812225A (en) * | 2010-04-01 | 2010-08-25 | 华南理工大学 | Flame retardant polycarbonate material with high surface hardness and gloss and preparation method thereof |
-
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- 2012-09-21 CN CN2012103534355A patent/CN102850758A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101812225A (en) * | 2010-04-01 | 2010-08-25 | 华南理工大学 | Flame retardant polycarbonate material with high surface hardness and gloss and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 罗明等: "阻燃高光泽PC /PMMA合金的制备与性能研究", 《塑料工业》, vol. 38, no. 10, 31 October 2010 (2010-10-31) * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105778379A (en) * | 2016-05-12 | 2016-07-20 | 广东东华光电科技有限公司 | Flexible mirror |
| CN112625418A (en) * | 2020-12-03 | 2021-04-09 | 苏州奥美材料科技有限公司 | Low-phase-difference polycarbonate and polymethyl methacrylate composite film and preparation method thereof |
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Application publication date: 20130102 |