CN105315642B - A kind of polycarbonate compositions and preparation method thereof - Google Patents
A kind of polycarbonate compositions and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a kind of polycarbonate compositions, by weight, including consisting of：A, 44 parts 85 parts of makrolon；B, 8 parts 50 parts of modified rubber graft polymers；C, 5 parts 25 parts of fire retardant；Wherein, the percentage by weight sum of tri- kinds of components of a, b, c is 100wt%.During the graft polymers for the modified rubber that the present invention is pre-processed from the phenol type substances methanol solution of the use 0.001wt% 1wt% of addition certain content in polycarbonate compositions formula, obtained polycarbonate compositions have excellent low-temperature flexibility and high gloss, are particularly suitable for use in the occasion that use environment requires higher；The wherein structural formula of phenol type substances such as formula（1）：Formula（1）Wherein R1And R5Represent the hydrogen-based in addition to the group that is obstructed, alkyl, alkoxy, hydroxyl, carboxyl or carbonyl, ester group, R2, R3, R4Represent the substituent of hydrogen atoms, preferably hydrogen atom.
Description
Technical field
The present invention relates to engineering plastics technical field, more particularly to a kind of polycarbonate compositions and preparation method thereof.
Background technology
Polycarbonate has compared with characteristics such as high-impact and heat resistances, to improve its processing characteristics and to notch shock
Sensitive shortcoming, may be typically added conventional graft polymers, such as ABS, MBS, particularly using PC and ABS as primary raw material
PC/ABS alloys are a kind of important engineering plastics, can integrate both premium properties, accomplish physical property and processing characteristics
It is improved, is usually used in electronic apparatus shell and office material.Conventional at present makrolon and based on ABS toughening modifyings
Polycarbonate compositions can meet conventional toughness reguirements, it is impossible to meet the requirement of low-temperature flexibility；Currently in order to obtain compared with
High low-temperature flexibility, most of patents are all the copolymer for adding siliceous class, such as patent CN103958573；But, in injection system
When part, due to the limitation of mobility, often glossiness is inadequate, produces defect, if from the silicones of low molecule amount, though
Mobility so can be somewhat improved, but low-temperature flexibility can incur loss again.
Up to the present, the rubber pre-processed on the phenol type substances methanol solution added with 0.001wt%-1wt% changes
The graft polymers of property is had not been reported with the influence for improving the low-temperature flexibility and glossiness of the polycarbonate compositions.
The present inventor pass through many experiments surprisingly it has been found that, from adding certain content in being formulated in polycarbonate compositions
Use 0.001wt%-1wt% the pretreatment of phenol type substances methanol solution modified rubber graft polymers when, what is obtained is poly-
Carbonate composition has excellent low-temperature flexibility and high gloss, is particularly suitable for use in the occasion that use environment requires higher.
The content of the invention
In order to overcome the shortcoming and deficiency of prior art, have excellent low temperature tough it is an object of the invention to provide a kind of
The polycarbonate compositions of property and high gloss.
Another object of the present invention is to provide the preparation method of above-mentioned polycarbonate compositions.
The present invention is achieved by the following technical solutions：
A kind of polycarbonate compositions, by weight, including consisting of：
A, 44 parts -85 parts of makrolon；
B, 8 parts -50 parts of modified rubber graft polymers；
C, 5 parts -25 parts of fire retardant；
Wherein, the percentage by weight sum of tri- kinds of components of a, b, c is 100wt%.
Preferably, a kind of polycarbonate compositions, by weight percentage, including consisting of：
A, 55 parts -80 parts of makrolon；
B, 8 parts -50 parts of modified rubber graft polymers；
C, 5 parts -20 parts of fire retardant；
Wherein, the percentage by weight sum of tri- kinds of components of a, b, c is 100wt%,
The graft polymers of the modified rubber is made up of one or more mixtures in component I and/or component II：
Component I：The graft polymerization of the modified rubber pre-processed with 0.001wt%-1wt% phenol type substances methanol solution
Thing；
Component II：Do not make the graft polymers of modified rubber pre-processed；
The wherein structural formula of phenol type substances such as formula（1）：
Formula（1）
Wherein R1And R5Represent the hydrogen-based in addition to the group that is obstructed, alkyl, alkoxy, hydroxyl, carboxyl or carbonyl, ester
Base, R2, R3, R4Represent the substituent of hydrogen atoms, preferably hydrogen atom.
It is highly preferred that a kind of polycarbonate compositions, by weight percentage, including consisting of：
A, 55 parts -80 parts of makrolon；
B, 10 parts -40 parts of modified rubber graft polymers；
C, 5 parts -20 parts of fire retardant；
Wherein, the percentage by weight sum of tri- kinds of components of a, b, c is 100wt%,
The graft polymers of the modified rubber is made up of one or more mixtures in component I and/or component II：
Component I：The graft polymerization of the modified rubber pre-processed with 0.001wt%-1wt% phenol type substances methanol solution
Thing；
Component II：Do not make the graft polymers of modified rubber pre-processed；
The wherein structural formula of phenol type substances such as formula（1）：
Formula（1）
Wherein R1And R5Represent the hydrogen-based in addition to the group that is obstructed, alkyl, alkoxy, hydroxyl, carboxyl or carbonyl, ester
Base, R2, R3, R4Represent the substituent of hydrogen atoms, preferably hydrogen atom.
In the graft polymers of the modified rubber, component I accounts for the percentage of the graft polymers gross weight of modified rubber
For 30wt%-50wt%；The percentage that component II accounts for the graft polymers gross weight of modified rubber is 50wt%-70wt%.
Wherein, the method for testing of the content of phenol type substances：, will after polycarbonate compositions with electronic balance weighing 2g
Sample is put into 120 DEG C of preset temperature and the constant temperature oven of temperature stable homogeneous after 2h, is put into soxhlet type apparatus and is carried out first
Alcohol is extracted, and extraction temperature is 85 DEG C, and the time is 48h, and extract is placed into after constant temperature, and 20ul is extracted out by screen pack, with
10ml/min flow velocity, by mobile phase（Methanol:Pure water=90:10）It will be divided in the adsorption column of extract sample introduction to C18
From and it is quantitative, set up after standard curve, can passed through by the standard liquid for setting up 1ppm, 5ppm, 10ppm and 20ppm
The specific delivery time of standard specimen and calculation by extrapolation draw the content of phenol type substances.
In the graft polymers of the modified rubber, component I glass transition temperature<10℃.
The method of testing of glass transition temperature：By the graft polymers of modified rubber（About 10 milligrams）It is put into a crucible
It is interior, use differential scanning calorimeter（DSC-2C, PerKin Elmer companies manufacture）Make DSC curve, temperature is with 5 DEG C/min heating
Speed rises to preset temperature from room temperature, and mobile phase is protected for nitrogen stream, and glass transition temperature is to start rise on DSC curve
Temperature.
Wherein, the graft polymers of the modified rubber is selected from mass polymerization, emulsion polymerization, bulk-suspension polymerization
The one or more of the graft polymers of modified rubber prepared by method.
Mass polymerization：Including colloidal sol, prepolymerization, polymerization, five steps of devolatilization and granulation：By rubber solution in ethylbenzene and
In styrene, add monomer according to formula ratio and be made into material liquid, the material liquid prepared is inputted in pre-polymerization axe and carries out prepolymerization,
In polymerization process, grafting rubbers monomer, while monomer copolymerization, is separated from solution, formation is dispersed in material liquid continuous
Discontinuous phase in phase, after with enough monomer polymerizations, the copolymer of discontinuous phase becomes continuous phase, the rubber of grafting
Form discontinuous phase to be dispersed in continuous copolymer phase, complete phase in version, eventually pass further polymerization, vacuum outgas is squeezed
Go out, cooling and pelletizing obtain end article；
Bulk-suspension polymerization method：According to formula regulation rubber and monomer solution, and polymerization regulator and freedom are added simultaneously
Base initiator, by monomer mixture in 80 DEG C of -120 DEG C of progress polymerisation in bulks, is stirred continuously in polymerization process, and by deionized water
It is added to suspending agent in mixture, is disperseed mixture, is then carried out suspension polymerisation using free radical catalyst, obtain
By cohesion after certain degree of polymerization, filter, washing, granulation obtains product after being dehydrated and drying.
Emulsion polymerization：Rubber is by the way that in initiator, deionized water, emulsifying agent and crosslinking agent, polymerization temperature is controlled 50
DEG C -80 DEG C, monomer mixture is added to elastomer latex and is grafted, is finally washed, granulation is made after being dehydrated and drying
Product.
Wherein, the graft polymers of the modified rubber, by weight, selected from including grafting as follows b.1 on b.2
Polymer：
B.1,5 parts -95 parts of mixture b.1.1 and b.1.2：
B.1.1,50 parts -95 parts of styrene, styrene derivative such as α-methylstyrene, to benzyl styrene, two
Vinylstyrene, methacrylic acid C1-C8- Arrcostabs, acrylic acid C1-C8- Arrcostabs, dimethyl siloxane, phenyl silica
The one or more of alkane, many alkylsiloxanes；
B.1.2,5 parts -50 parts of acrylonitrile, methacrylonitrile, methacrylic acid C1-C8- Arrcostabs, acrylic acid C1-C8-
The one or more of Arrcostab；
B.2,5 parts -95 parts contain polybutadiene, polyisoprene, styrene butadiene random copolymer and block copolymerization
Thing, acrylonitrile-butadiene random copolymer and block copolymer, polybutadiene and polyisoprene copolymers, ethene and a- alkene
Hydrocarbon copolymer, ethene and a- unsaturated carboxylic acids ester copolymer, ethylene-propylene-non-conjugated diene terpolymer, acryloyl rubber
The one or more of glue, organopolysiloxane elastomer.
Preferably, the graft polymers of the modified rubber is selected from acrylonitritrile-styrene resin AS, acrylic nitrile-butadiene two
Alkene-phenylethene grafted copolymer ABS, methyl methacrylate-nitrile-butadiene-styrene copolymer MABS, acrylonitrile-benzene
Ethylene-propylene acid ter-polymer ASA, one kind in MBS graft copolymer MBS or
It is several；Preferably acrylonitrile-butadiene-phenylethene grafted copolymer ABS；Wherein, the preferred 0.1um-0.5um of MBS particle diameter, this
Body the polymerization preferred 0.1um-2um of ABS particle diameters, the preferred 0.05um-0.2um of emulsion polymerization ABS particle diameters.
Wherein, the makrolon is selected from aromatic copolycarbonate, fatty poly-ester carbonate, the poly- carbon of aromatic-aliphatic
One or more in acid esters, branching polycarbonate, siloxane copolycarbonate, preferably aromatic copolycarbonate；
Preferably, the aromatic copolycarbonate is viscosity average molecular weigh 13000-40000 aromatic copolycarbonate, preferably
For viscosity average molecular weigh 16000-28000 aromatic copolycarbonate.When viscosity average molecular weigh within the above range, mechanical strength is good
And excellent mouldability can be kept.Wherein, viscosity average molecular weigh is to be by using dichloromethane in test temperature as solvent
What 25 DEG C of solution viscosity was calculated.
The preparation method of above-mentioned makrolon can be made by interfacial polymerization and ester-interchange method, and can be in process
The content of middle control terminal hydroxy group.
Wherein, the fire retardant is selected from halogenated flame retardant or halogen-free flame retardants, preferably halogen-free flame retardants；The halogen system is fire-retardant
Agent be selected from brominated Polystyrene, brominated polyphenylether, brominated bisphenol a type epoxy resin, brominated styrene-copolymer-maleic anhydride,
Brominated epoxy resin, bromination phenoxy resin, deca-BDE, decabromodiphenyl, brominated polycarbonate, the cyclopentadecane of perbromo- three
Or the one or more of brominated aromatic cross-linked polymer, preferably brominated Polystyrene；The halogen-free flame retardants is selected from nitrogenous
One or more in fire retardant, phosphonium flame retardant or nitrogenous and phosphorus fire retardant, preferably phosphonium flame retardant.
Preferably, the phosphonium flame retardant is selected from Triphenyl phosphate, lindol, tricresyl phosphate base diphenyl
Ester, tricresyl phosphate dimethylbenzene base ester, tricresyl phosphate (2,4,6- trimethylphenyls) ester, tricresyl phosphate (2,4- di-tert-butyl-phenyls) ester, phosphorus
It is sour three (2,6- di-tert-butyl-phenyls) esters, resorcinol double (diphenyl phoshates), hydroquinones double (diphenyl phoshates), double
Phenol A- double (diphenyl phoshates), resorcinol double (2,6- di-tert-butyl-phenyls phosphates), double (the 2,6- dimethyl of hydroquinones
Phenyl phosphate ester) one or more.
The polycarbonate compositions, can also include 0-10 parts of other auxiliary agents, and other auxiliary agents are selected from stabilizer, resistance
Fire synergist, anti-dripping agent, lubricant, releasing agent, plasticizer, filler, the one or more of colouring agent.
Suitable stabilizer includes organic phosphite, such as triphenyl phosphite, and phosphorous acid three-（2,6- 3,5-dimethylphenyls）
Ester, phosphorous acid three-nonyl phenylester, dimethylbenene phosphonate, trimethyl phosphate etc., organic phosphite, the unitary of alkylation
The butylation reaction production of the alkylation reaction product of phenol or polyhydric phenols, polyhydric phenols and diene, paracresol or bicyclopentadiene
Thing, the hydroquinones of alkylation, hydroxylated thiodiphenvl ethers, alkylidene-bis-phenol, benzyl compounds, polyalcohol esters, benzene
And triazole type, one or more kinds of combinations of benzophenone.
Suitable plasticizer is phthalic acid ester.
Suitable releasing agent includes metallic stearic salt, allcyl stearate class, stearic acid pentaerythritol esters, stone
Wax, lignite wax etc..
Suitable colouring agent includes various pigment, dyestuff.
The preparation method of above-mentioned polycarbonate compositions, comprises the following steps：
1）Phenol type substances and methanol are made into the phenol type substances methanol solution of 0.001wt%-1wt% mass concentrations；Its
The structural formula of middle phenol type substances such as formula（1）：
Formula（1）
Wherein R1And R5Represent the hydrogen-based in addition to the group that is obstructed, alkyl, alkoxy, hydroxyl, carboxyl or carbonyl, ester
Base, R2, R3, R4Represent the substituent of hydrogen atoms, preferably hydrogen atom；
2）The graft polymers of the phenol type substances methanol solution of 0.001wt%-1wt% mass concentrations and modified rubber is existed
Blended under agitation in high mixer, obtains component I；
3）Component I is added in extruder by feeding scale and merged simultaneously with component II, aromatic copolycarbonate, fire retardant
Pelletizing is extruded, the polycarbonate compositions are obtained.
Wherein, the step 2）The rotating speed of middle blended under agitation is 280 revs/min -320 revs/min；Preferably 300 revs/min.
The polycarbonate compositions of the present invention can be used for outdoor and indoor application field, such as all kinds and size
Case member, household electrical appliance such as television set, printer, modem shells, display casing etc., or the vapour used out of doors
Car part, the shell or lid of building field, and electrical appliance shell and frame.
The present invention compared with prior art, has the advantages that：
Phenol of the present invention from the use 0.001wt%-1wt% of addition certain content in polycarbonate compositions formula
During the graft polymers of the modified rubber of material methanol solution pretreatment, obtained polycarbonate compositions have excellent low temperature
Toughness and high gloss, are particularly suitable for use in the occasion that use environment requires higher.
Embodiment
The present invention is further illustrated below by embodiment, following examples are the present invention preferably embodiment party
Formula, but embodiments of the present invention are not limited by following embodiments.
The testing standard or method of each performance：
The method of testing of the content of phenol type substances：After polycarbonate compositions with electronic balance weighing 2g, by sample
It is put into 120 DEG C of preset temperature and the constant temperature oven of temperature stable homogeneous after 2h, is put into soxhlet type apparatus progress methanol and takes out
Carry, extraction temperature is 85 DEG C, and the time is 48h, and extract is placed into after constant temperature, 20ul is extracted out by screen pack, with 10ml/
Min flow velocity, by mobile phase（Methanol:Pure water=90:10）To be separated in the adsorption column of extract sample introduction to C18 with
And it is quantitative, set up by the standard liquid for setting up 1ppm, 5ppm, 10ppm and 20ppm after standard curve, standard specimen can be passed through
The specific delivery time and calculation by extrapolation draw the contents of phenol type substances.
The method of testing of low-temperature flexibility：Use D256,51BF, -40 DEG C of ASTM and 3.2mm thickness measure notched izods
Impact strength represents low-temperature flexibility with the relative different percentage of 23 DEG C and 3.2mm thickness, and numerical value is higher, and its low-temperature flexibility is got over
It is good.This evaluation method eliminates the influence of initial performance difference.
The test mode of glossiness：ASTM D2457, at least 60 glossiness of 60 ° of measurements, the glossiness less than 60
Product standard requirement is not met then, and at least 80 glossiness of 80 ° of measurements, the glossiness of product of the invention can be higher than
90. glossiness.
The makrolon used in the present invention：
Component a -1：PC 1300-10（South Korea LG）；
Component a -2：PC 1225 （Japanese Supreme Being people）；
The graft polymers of the modified rubber used in the present invention：
Component b-1：Component I：0.001wt%-1wt% phenol type substances methanol solution is prepared, rotating speed is added it to and sets
It is set to 300 revs/min of the graft polymers added with modified rubber（The Taiwan of ABS 757 is very beautiful）In high mixer, mixing time is 30
Minute, the graft polymers of the modified rubber pre-processed；
Component b-2：Component II：The Taiwan of ABS 757 is very beautiful；
The phenol type substances that the present invention is used：
Phenol：（Shanghai TCI）；
P-methyl phenol class material：（Aladdin）；
Dimethyl benzene phenols material：（Aladdin）；
The fire retardant used in the present invention：
Component c：BDP, bisphenol-A-bis- (diphenyl phoshate)（Ai Dike）；
The other auxiliary agents used in the present invention：
Component d-1：AO168（Three [2.4- di-tert-butyl-phenyls] phosphite esters）As stabilizer,（BASF）；
Component d-2：PETS（Pentaerythritol stearate）As lubricant,（Dragon is husky in the U.S.）；
Component d-3：PTFE（Polytetrafluoroethylene (PTFE)）As anti-dripping agent,（Guangzhou entropy energy）.
Embodiment 1-12 and comparative example 1-8：The preparation of polycarbonate compositions
Phenol type substances and methanol are made into the phenol type substances methanol solution of 0.001wt%-1wt% mass concentrations；Will
The phenol type substances methanol solution of 0.00wt1%-1wt% mass concentrations and the graft polymers of modified rubber are stirred in high mixer
Blending, obtains component I；Component I is added in extruder and component II, aromatic copolycarbonate, fire retardant by feeding scale
Merge and extrude pelletizing, obtain the polycarbonate compositions；Wherein, the rotating speed of blended under agitation is 300 revs/min；To above-mentioned poly-
Low-temperature flexibility, the glossiness of carbonate composition are tested, and data are shown in Table 1.
The embodiment 1-12 of table 1 and comparative example 1-8 specific proportioning（Parts by weight）And its test performance result
Continued 1
It is undesirable that "-" represents glossiness；
The present invention that relatively can be seen that of embodiment and comparative example from table 1 is selected in polycarbonate compositions formula
Add the graft polymers of the modified rubber of the use 0.001wt%-1wt% of certain content phenol type substances methanol solution pretreatment
When, obtained polycarbonate compositions have excellent low-temperature flexibility and high gloss, are particularly suitable for use in use environment and require ratio
Higher occasion.
Claims (23)
1. a kind of polycarbonate compositions, by weight, including consisting of：
A, 55 parts -80 parts of makrolon；
B, 8 parts -50 parts of modified rubber graft polymers；
C, 5 parts -20 parts of fire retardant；
Wherein, the percentage by weight sum of tri- kinds of components of a, b, c is 100wt%,
The graft polymers of the modified rubber is made up of two kinds of mixtures in component I and component II：
Component I：The graft polymers of the modified rubber pre-processed with 0.001wt%-1wt% phenol type substances methanol solution；
Component II：Do not make the graft polymers of modified rubber pre-processed；
The wherein structural formula of phenol type substances such as formula（1）：
Formula（1）
Wherein R1And R5The hydrogen-based in addition to the group that is obstructed, alkyl, alkoxy, hydroxyl, carboxyl, carbonyl or ester group are represented,
R2, R3, R4Represent the substituent of hydrogen atoms；
In the graft polymers of the modified rubber, the percentage that component I accounts for the graft polymers gross weight of modified rubber is
30wt%-50wt%；The percentage that component II accounts for the graft polymers gross weight of modified rubber is 50wt%-70wt%；
The graft polymers of the modified rubber, by weight, selected from including graft polymers as follows b.1 on b.2：
B.1,5 parts -95 parts of mixture b.1.1 and b.1.2：
B.1.1,50 parts -95 parts of styrene, α-methylstyrene, to benzyl styrene, divinylstyrene, methyl-prop
Olefin(e) acid C1-C8- Arrcostabs, acrylic acid C1-C8- Arrcostabs, phenyl siloxane, the one or more of many alkylsiloxanes；
B.1.2,5 parts -50 parts of acrylonitrile, methacrylonitrile, methacrylic acid C1-C8- Arrcostabs, acrylic acid C1-C8- alkyl
The one or more of ester；
B.2,5 parts -95 parts containing polybutadiene, polyisoprene, styrene butadiene random copolymer and block copolymer,
Acrylonitrile-butadiene random copolymer and block copolymer, polybutadiene and polyisoprene copolymers, ethene and a- alkene are common
Polymers, ethene and a- unsaturated carboxylic acids ester copolymer, ethylene-propylene-non-conjugated diene terpolymer, acryloyl rubber, have
The one or more of organic siloxane rubber.
2. polycarbonate compositions according to claim 1, it is characterised in that the R2, R3, R4For hydrogen atom.
3. polycarbonate compositions according to claim 1, by weight, including consisting of：
A, 55 parts -80 parts of makrolon；
B, 10 parts -40 parts of modified rubber graft polymers；
C, 5 parts -20 parts of fire retardant；
Wherein, the percentage by weight sum of tri- kinds of components of a, b, c is 100wt%.
4. polycarbonate compositions according to claim 1, it is characterised in that the graft polymers of the modified rubber
In, component I glass transition temperature<10℃.
5. the polycarbonate compositions according to claim any one of 1-3, it is characterised in that the grafting of the modified rubber
Polymer is selected from the one of the graft polymers of modified rubber prepared by mass polymerization, emulsion polymerization, bulk-suspension polymerization method
Plant or several.
6. polycarbonate compositions according to claim 4, it is characterised in that the graft polymers choosing of the modified rubber
One kind or several of the graft polymers of the modified rubber prepared from mass polymerization, emulsion polymerization, bulk-suspension polymerization method
Kind.
7. polycarbonate compositions according to claim 1, it is characterised in that many alkylsiloxanes are dimethyl-silicon
Oxygen alkane.
8. polycarbonate compositions according to claim 1, it is characterised in that the graft polymers choosing of the modified rubber
From acrylonitrile-butadiene-phenylethene grafted copolymer ABS, MABS
MABS, acrylonitrile-styrene-acrylic ternary copolymer ASA, MBS graft copolymer
One or more in MBS.
9. polycarbonate compositions according to claim 8, it is characterised in that the graft polymers of the modified rubber is
Acrylonitrile-butadiene-phenylethene grafted copolymer ABS.
10. polycarbonate compositions according to claim 8, it is characterised in that the particle diameter 0.1um-0.5um of the MBS,
Mass polymerization ABS particle diameter 0.1um-2um, emulsion polymerization ABS particle diameters 0.05um-0.2um.
11. the polycarbonate compositions according to claim 1 or 3, it is characterised in that the makrolon is selected from aromatic series
One or more in makrolon, fatty poly-ester carbonate, aromatic-aliphatic makrolon, branching polycarbonate；It is described
Aromatic copolycarbonate is viscosity average molecular weigh 13000-40000 aromatic copolycarbonate.
12. polycarbonate compositions according to claim 11, it is characterised in that the makrolon is fragrant adoption carbon
Acid esters.
13. polycarbonate compositions according to claim 11, it is characterised in that the aromatic copolycarbonate is viscous equal
Molecular weight 16000-28000 aromatic copolycarbonate.
14. the polycarbonate compositions according to claim 1 or 3, it is characterised in that it is fire-retardant that the fire retardant is selected from halogen system
Agent or halogen-free flame retardants；The halogenated flame retardant is selected from brominated Polystyrene, brominated polyphenylether, brominated styrene-maleic anhydride
Copolymer, brominated epoxy resin, bromination phenoxy resin, deca-BDE, decabromodiphenyl, brominated polycarbonate, perbromo- three
The one or more of cyclopentadecane or brominated aromatic cross-linked polymer；The halogen-free flame retardants is selected from nitrogenous flame ratardant, phosphorous
One or more in fire retardant.
15. polycarbonate compositions according to claim 14, it is characterised in that the brominated epoxy resin is that bromination is double
Phenol A type epoxy resin.
16. polycarbonate compositions according to claim 14, it is characterised in that the fire retardant is halogen-free flame retardants.
17. polycarbonate compositions according to claim 14, it is characterised in that the halogenated flame retardant is brominated polyphenylene
Ethene.
18. polycarbonate compositions according to claim 16, it is characterised in that the halogen-free flame retardants is phosphor-containing flame-proof
Agent.
19. polycarbonate compositions according to claim 18, it is characterised in that the phosphonium flame retardant is selected from tricresyl phosphate
Phenylester, lindol, tricresyl phosphate base diphenyl, tricresyl phosphate dimethylbenzene base ester, tricresyl phosphate (2,4,6- trimethyls
Phenyl) ester, tricresyl phosphate (2,4- di-tert-butyl-phenyls) ester, tricresyl phosphate (2,6- di-tert-butyl-phenyls) ester, the double (phosphoric acid of resorcinol
Diphenyl), hydroquinones double (diphenyl phoshate), bisphenol-A-bis- (diphenyl phoshate), the double (uncles of 2,6- bis- of resorcinol
Butyl phenyl phosphate), the one or more of hydroquinones double (2,6- dimethylphenylphosphates).
20. the polycarbonate compositions according to claim 1 or 3, it is characterised in that also helped including 0-10 parts other
Agent, other auxiliary agents are selected from stabilizer, retardant synergist, anti-dripping agent, lubricant, plasticizer, filler, one kind of colouring agent
Or it is several.
21. a kind of preparation method of polycarbonate compositions as described in claim any one of 1-20, it is characterised in that including
Following steps：
1）Phenol type substances and methanol are made into the phenol type substances methanol solution of 0.001wt%-1wt% mass concentrations；
2）The graft polymers of the phenol type substances methanol solution of 0.001wt%-1wt% mass concentrations and modified rubber is mixed in height
Blended under agitation in machine, obtains component I；
3）Component I is added in extruder by feeding scale pelletizing is merged and extruded with component II, makrolon, fire retardant,
Obtain the polycarbonate compositions.
22. the preparation method of polycarbonate compositions according to claim 21, it is characterised in that the step 2）In stir
The rotating speed for mixing blending is 280 revs/min -320 revs/min.
23. the preparation method of polycarbonate compositions according to claim 22, it is characterised in that the step 2）In stir
The rotating speed for mixing blending is 300 revs/min.
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| CN103160103A (en) * | 2011-12-16 | 2013-06-19 | 合肥杰事杰新材料股份有限公司 | Low-temperature good toughness modified polycarbonate and preparation method thereof |
| CN104262924A (en) * | 2014-09-02 | 2015-01-07 | 金发科技股份有限公司 | Flame-retardant aromatic polycarbonate composition with low precipitate and favorable appearance |
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