CN102863766A - Preparation method of polymethylmethacrylate-modified polycarbonate alloy material - Google Patents

Preparation method of polymethylmethacrylate-modified polycarbonate alloy material Download PDF

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Publication number
CN102863766A
CN102863766A CN2012103534995A CN201210353499A CN102863766A CN 102863766 A CN102863766 A CN 102863766A CN 2012103534995 A CN2012103534995 A CN 2012103534995A CN 201210353499 A CN201210353499 A CN 201210353499A CN 102863766 A CN102863766 A CN 102863766A
Authority
CN
China
Prior art keywords
polymethylmethacrylate
alloy material
parts
polycarbonate alloy
polycarbonate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN2012103534995A
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Chinese (zh)
Inventor
方云祥
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Changshu Kailida Honeycomb Package Material Co Ltd
Original Assignee
Changshu Kailida Honeycomb Package Material Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Changshu Kailida Honeycomb Package Material Co Ltd filed Critical Changshu Kailida Honeycomb Package Material Co Ltd
Priority to CN2012103534995A priority Critical patent/CN102863766A/en
Publication of CN102863766A publication Critical patent/CN102863766A/en
Pending legal-status Critical Current

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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
    • B29C48/919—Thermal treatment of the stream of extruded material, e.g. cooling using a bath, e.g. extruding into an open bath to coagulate or cool 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
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
    • 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

Abstract

The invention relates to a preparation method of a polymethylmethacrylate-modified polycarbonate alloy material, belonging to the technical field of high polymer material preparation. The preparation method comprises the following steps: adding 150-170 parts of polycarbonate resin into a drying device, and drying at 120 DEG C to obtain a first dried material; adding 37.5-42.5 parts of polymethylmethacrylate into the drying device, drying at 120 DEG C to obtain a second dried material; adding the first and second dried materials into a high-speed mixer together with 9-13 parts by weight of styrene-acrylonitrile copolymer 5.5-7.2 parts by weight of ethylene-methyl acrylate copolymer, 0.4-0.9 part by weight of antioxidant and 1.2-2.4 parts by weight of lubricant, and mixing; transferring into a double screw extruder to carry out melt extrusion while controlling the extrusion temperature at 265-285 DEG C; and cooling the material from the extruder in a water tank, and granulating to obtain the polymethylmethacrylate-modified polycarbonate alloy material. The polymethylmethacrylate-modified polycarbonate alloy material has the characteristics of favorable transparency, light weight, excellent comprehensive properties and the like.

Description

The polycarbonate alloy material preparation method of polymethylmethacrylate modification
Technical field
The invention belongs to field of polymer material preparing technology, be specifically related to a kind of polycarbonate alloy material preparation method of polymethylmethacrylate modification.
Background technology
Polycarbonate has excellent mechanical property, and its heat-drawn wire is up to 120～143 ℃, and molding shrinkage is little, is used widely in fields such as automobile, electronics, electrical equipment.Polymethylmethacrylate has transmittance height, light specific gravity, the weather-proof characteristics such as good.If with polymethylmethacrylate and polycarbonate material blend, produce the alloy material that a kind of appearance transparent is good, quality is light, can expand greatly the purposes of polycarbonate, the technical scheme that the present invention will introduce below produces under this background.
Summary of the invention
Task of the present invention provides a kind of polycarbonate alloy material preparation method of polymethylmethacrylate modification, and the polycarbonate alloy material that is obtained by the method has that the transparency is good, quality light and the strong point of excellent combination property.
Task of the present invention is finished like this, a kind of polycarbonate alloy material preparation method of polymethylmethacrylate modification, it is 150 ~ 170 parts of input drying units of polycarbonate resin that will take by weighing by weight first and at 120 ℃ of dry 240min, obtain the first dried feed, with 37.5～42.5 parts of input drying installations of the polymethylmethacrylate dry 120min under 120 ℃ that take by weighing by weight, obtain the second dried feed, then with first, the second dried feed is in company with 9 ~ 13 parts of the styrene-acrylonitrile copolymers that takes by weighing by weight, 5.5 ~ 7.2 parts of ethylene-methyl acrylate copolymers, mix 10min in 0.4 ~ 0.9 part in oxidation inhibitor and 1.2 ~ 2.4 parts of input high-speed mixers of lubricant, transfer in the twin screw extruder and melt extrude, extrusion temperature is controlled to be 265-285 ℃, the material that comes from forcing machine enters the rear pelletizing of tank cooling, obtains the polycarbonate alloy material of polymethylmethacrylate modification.
In a specific embodiment of the present invention, described polycarbonate resin is bisphenol A polycarbonate.
In another specific embodiment of the present invention, described polymethylmethacrylate is universal plexiglass.
In another specific embodiment of the present invention, described styrene-acrylonitrile copolymer is vinylbenzene and process and styrene-acrylonitrile copolymer percentage of grafting 0.5% of acrylonitrile compolymer resin process maleic anhydride graft.
In another specific embodiment of the present invention, described ethylene-methyl acrylate copolymer be ethene and methyl acrylate copoly resin through maleic anhydride graft process and ethylene-methyl acrylate copolymer percentage of grafting 0.5%.
Also have in the specific embodiment of the present invention, described oxidation inhibitor is BHT.
More of the present invention and in specific embodiment, described lubricant is stearic amide.
Polycarbonate alloy material by the polymethylmethacrylate modification of the inventive method preparation has the characteristics such as the transparency is good, quality light, excellent combination property.Tensile strength 55 ~ 60MPa, elongation at break 39 ~ 51%, shock strength 33 ~ 41KJ/m 2, flexural strength 86 ~ 95 MPa.
Embodiment
Embodiment 1:
150 parts of input drying units of the bisphenol A polycarbonate that will take by weighing by weight first and at 120 ℃ of lower dry 240min, obtain the first dried feed, 42.5 parts of input drying installations of the universal plexiglass that will take by weighing by weight again and at 120 ℃ of lower dry 120min, obtain the second dried feed, then with the first dried feed and the second dried feed in company with 10 parts of that process and styrene-acrylonitrile copolymers percentage of grafting 0.5% by maleic anhydride graft that takes by weighing by weight, that process and ethylene-methyl acrylate copolymer percentage of grafting 0.5% is 7.2 parts by maleic anhydride graft, 2, mix 10min in 0.4 part of 6-di-tert-butyl methyl phenol and 1.2 parts of input high-speed mixers of stearic amide, transfer in the twin screw extruder and melt extrude, extrusion temperature is controlled to be 285 ℃, the material that comes from forcing machine enters the rear pelletizing of tank cooling, obtains the polycarbonate alloy material of polymethylmethacrylate modification.
Embodiment 2:
155 parts of input drying units of the bisphenol A polycarbonate that will take by weighing by weight first and at 120 ℃ of lower dry 240min, obtain the first dried feed, 37.5 parts of input drying installations of the universal plexiglass that will take by weighing by weight again and at 120 ℃ of lower dry 120min, obtain the second dried feed, then with the first dried feed and the second dried feed in company with 9 parts of that process and styrene-acrylonitrile copolymers percentage of grafting 0.5% by maleic anhydride graft that takes by weighing by weight, that process and ethylene-methyl acrylate copolymer percentage of grafting 0.5% is 5.5 parts by maleic anhydride graft, 2, mix 10min in 0.9 part of 6-di-tert-butyl methyl phenol and 1.4 parts of input high-speed mixers of stearic amide, transfer in the twin screw extruder and melt extrude, extrusion temperature is controlled to be 265 ℃, the material that comes from forcing machine enters the rear pelletizing of tank cooling, obtains the polycarbonate alloy material of polymethylmethacrylate modification.
Embodiment 3:
170 parts of input drying units of the bisphenol A polycarbonate that will take by weighing by weight first and at 120 ℃ of lower dry 240min, obtain the first dried feed, 39 parts of input drying installations of the universal plexiglass that will take by weighing by weight again and at 120 ℃ of lower dry 120min, obtain the second dried feed, then with the first dried feed and the second dried feed in company with 13 parts of that process and styrene-acrylonitrile copolymers percentage of grafting 0.5% by maleic anhydride graft that takes by weighing by weight, that process and ethylene-methyl acrylate copolymer percentage of grafting 0.5% is 7 parts by maleic anhydride graft, 2, mix 10min in 0.6 part of 6-di-tert-butyl methyl phenol and 1.8 parts of input high-speed mixers of stearic amide, transfer in the twin screw extruder and melt extrude, extrusion temperature is controlled to be 270 ℃, the material that comes from forcing machine enters the rear pelletizing of tank cooling, obtains the polycarbonate alloy material of polymethylmethacrylate modification.
Embodiment 4:
165 parts of input drying units of the bisphenol A polycarbonate that will take by weighing by weight first and at 120 ℃ of lower dry 240min, obtain the first dried feed, 41 parts of input drying installations of the universal plexiglass that will take by weighing by weight again and at 120 ℃ of lower dry 120min, obtain the second dried feed, then with the first dried feed and the second dried feed in company with 11 parts of that process and styrene-acrylonitrile copolymers percentage of grafting 0.5% by maleic anhydride graft that takes by weighing by weight, that process and ethylene-methyl acrylate copolymer percentage of grafting 0.5% is 6 parts by maleic anhydride graft, 2, mix 10min in 0.7 part of 6-di-tert-butyl methyl phenol and 2.4 parts of input high-speed mixers of stearic amide, transfer in the twin screw extruder and melt extrude, extrusion temperature is controlled to be 275 ℃, the material that comes from forcing machine enters the rear pelletizing of tank cooling, obtains the polycarbonate alloy material of polymethylmethacrylate modification.
Polycarbonate alloy material by the polymethylmethacrylate modification of above-described embodiment 1 to 4 gained has the technique effect shown in the following table after tested:
Test event Embodiment 1 Embodiment 2 Embodiment 3 Embodiment 4
Tensile strength MPa 55.3 57.2 58.5 59.2
Elongation at break % 39 43 47 51
Shock strength KJ/m 2 34.2 36.5 39.3 40.7
Flexural strength MPa 86 89 92 95

Claims (7)

1. A kind of polycarbonate alloy material preparation method of polymethylmethacrylate modification, it is characterized in that it is 150 ~ 170 parts of input drying units of polycarbonate resin that will take by weighing by weight first and at 120 ℃ of dry 240min, obtain the first dried feed, with 37.5～42.5 parts of input drying installations of the polymethylmethacrylate dry 120min under 120 ℃ that take by weighing by weight, obtain the second dried feed, then with first, the second dried feed is in company with 9 ~ 13 parts of the styrene-acrylonitrile copolymers that takes by weighing by weight, 5.5 ~ 7.2 parts of ethylene-methyl acrylate copolymers, mix 10min in 0.4 ~ 0.9 part in oxidation inhibitor and 1.2 ~ 2.4 parts of input high-speed mixers of lubricant, transfer in the twin screw extruder and melt extrude, extrusion temperature is controlled to be 265-285 ℃, the material that comes from forcing machine enters the rear pelletizing of tank cooling, obtains the polycarbonate alloy material of polymethylmethacrylate modification.
2. The polycarbonate alloy material preparation method of polymethylmethacrylate modification according to claim 1 is characterized in that described polycarbonate resin is bisphenol A polycarbonate.
3. The polycarbonate alloy material preparation method of polymethylmethacrylate modification according to claim 1 is characterized in that described polymethylmethacrylate is universal plexiglass.
4. The polycarbonate alloy material preparation method of polymethylmethacrylate modification according to claim 1 is characterized in that described styrene-acrylonitrile copolymer is vinylbenzene and process and styrene-acrylonitrile copolymer percentage of grafting 0.5% of acrylonitrile compolymer resin process maleic anhydride graft.
5. The polycarbonate alloy material preparation method of polymethylmethacrylate modification according to claim 1, it is characterized in that described ethylene-methyl acrylate copolymer be ethene and methyl acrylate copoly resin through maleic anhydride graft process and ethylene-methyl acrylate copolymer percentage of grafting 0.5%.
6. The polycarbonate alloy material preparation method of polymethylmethacrylate modification according to claim 1 is characterized in that described oxidation inhibitor is BHT.
7. The polycarbonate alloy material preparation method of polymethylmethacrylate modification according to claim 1 is characterized in that described lubricant is stearic amide
CN2012103534995A 2012-09-21 2012-09-21 Preparation method of polymethylmethacrylate-modified polycarbonate alloy material Pending CN102863766A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012103534995A CN102863766A (en) 2012-09-21 2012-09-21 Preparation method of polymethylmethacrylate-modified polycarbonate alloy material

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Application Number Priority Date Filing Date Title
CN2012103534995A CN102863766A (en) 2012-09-21 2012-09-21 Preparation method of polymethylmethacrylate-modified polycarbonate alloy material

Publications (1)

Publication Number Publication Date
CN102863766A true CN102863766A (en) 2013-01-09

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Citations (2)

* Cited by examiner, † Cited by third party
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
CN102311624A (en) * 2010-09-30 2012-01-11 深圳市科聚新材料有限公司 Anti-scratch polycarbonate mobile phone material and preparation method thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
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
CN102311624A (en) * 2010-09-30 2012-01-11 深圳市科聚新材料有限公司 Anti-scratch polycarbonate mobile phone material and preparation method thereof

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Application publication date: 20130109