CN102030976A - PC-ASA alloy material and preparation method thereof - Google Patents
PC-ASA alloy material and preparation method thereof Download PDFInfo
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- CN102030976A CN102030976A CN201010576688XA CN201010576688A CN102030976A CN 102030976 A CN102030976 A CN 102030976A CN 201010576688X A CN201010576688X A CN 201010576688XA CN 201010576688 A CN201010576688 A CN 201010576688A CN 102030976 A CN102030976 A CN 102030976A
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- 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
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- 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
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- 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
- B29C2948/9258—Velocity
- B29C2948/9259—Angular velocity
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- 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
- B29C2948/92885—Screw or gear
Abstract
The invention discloses a polycarbonate (PC)-acrylonitrile-styrene-acrylate (ASA) alloy material and a preparation method thereof. The alloy material comprises the following components in part by weight: 25 to 80 parts of PC, 3 to 18 parts of ASA terpolymer, 5 to 25 parts of organosilicon-polycarbonate block copolymer and 1 to 10 parts of acrylonitrile-styrene copolymer. In the PC-ASA alloy material, the PC and the ASA serve as a resin matrix; by adding the organosilicon-polycarbonate block copolymer, the internal stress of the resin matrix is effectively reduced, and the toughness of the PC-ASA alloy material is improved; the acrylonitrile-styrene copolymer effectively makes molecules of each component interact; therefore, the components are mutually combined to form the PC-ASA alloy material with a stable structure. The preparation method of the PC-ASA alloy material is simple, easily controlled, low in cost and suitable for industrial production.
Description
Technical field
The present invention relates to the modified plastics field, particularly a kind of PC-ASA alloy material and preparation method thereof.
Background technology
The most basic requirements of outdoor goods such as air conditioner housing, grass-remover, fiber cable cross connection box are to support weather and the bad working environment that is subjected to drastic change.It will have waterproof airsetting knot, waterproof and dustproof, insect-pest and the plague of rats, characteristics that the shock resistance damage capability is strong.Therefore, the casing outside requires than higher aspects such as waterproof, protection against the tide, dustproof, anticollision infringement, the insect-pest plagues of rats; Its inboard requires very high to temperature, humidity control.Traditional metal cabinet because its poor performance aspect waterproof airsetting knot is eliminated gradually, becomes the trend place in this field to mould Dai Gangyi.
Polycarbonate (PC) resin height is heat-resisting, light stability is good, dimensional stability good, and main drawback is a difficult forming, and product prepared therefrom easily produces stress and ftractures.Therefore, usually and acrylonitrile-butadiene-styrene copolymer (ABS) resin alloy, not only can promote the toughness of PC material, improve processing characteristics, the PC-ABS alloy mechanical performance of making is good, and environmental stress cracking resistance is good, easily processing, but weathering resistance is relatively poor.Data shows that the rubber phase in the ABS resin contains carbon-carbon double bond, and the ionic dissociation energy that its pair key faces a last hydrogen is 163kJ-mol, is scaled wavelength below 700nm; And acrylonitrile-styrene-acrylic ester terpolymer (ASA) resin is because carbon-carbon double bonds not, and the ionic dissociation energy of hydrogen is 376kJ-mol on the main chain, and promptly wavelength is below 300nm.The energy of sun power substantially all is distributed in more than the 290nm, be difficult to the ASA resin is played solarization, therefore be significantly increased than PC-ABS aspect weather-proof and the ageing-resistant performance by its PC-ASA alloy of making, and keeping machinery, calorifics, electricity and the processing characteristics etc. of PC-ABS excellence.
Though existing P C-ABS alloy has as above-mentioned advantage, also exist some stronger as the internal stress of PC-ABS alloy, cause its toughness relatively poor, simultaneously also relatively poor etc. the deficiency of its weathering resistance, ageing resistance.Along with the continuous development of association area, PC-ABS alloy Application Areas is more and more wider, and the existing deficiency of PC-ABS alloy is restricting it and using and promote.Therefore, the deficiency as above-mentioned of PC-ABS alloy is to continue the difficult problem that remains to be improved.
Summary of the invention
The purpose of the embodiment of the invention is to overcome the above-mentioned deficiency of prior art, provides a kind of toughness strong, constitutionally stable PC-ASA alloy material.
And, the preparation method of above-mentioned PC-ASA alloy material.
In order to realize the foregoing invention purpose, technical scheme of the present invention is as follows:
A kind of PC-ASA alloy material comprises the component of following parts by weight:
25～80 parts of polycarbonate, 3～18 parts of acrylonitrile-styrene-acrylic ester terpolymers, 5～25 parts of organosilicon-polycarbonate block copolymers, 1～10 part of acrylonitritrile-styrene resin.
And a kind of PC-ASA alloy material preparation method comprises the steps:
By above-mentioned PC-ASA alloy material prescription each component is mixed, form mixture;
With described mixture extruding pelletization, obtain described PC-ASA alloy material.
Above-mentioned PC-ASA alloy material is a resin matrix with polycarbonate and acrylonitrile-styrene-acrylic ester terpolymer, by adding organosilicon-polycarbonate block copolymer, effectively reduce the internal stress of resin matrix, increased the toughness of PC-ASA alloy material; Acrylonitritrile-styrene resin makes effectively that each component is intermolecular has an effect, thereby makes each component interosculate, and forms constitutionally stable PC-ASA alloy material.This PC-ASA alloy material preparation method operation is simple, easily control, and cost is low, is fit to suitability for industrialized production.
Description of drawings
Fig. 1 is embodiment of the invention PC-ASA alloy material preparation method's a schematic flow sheet.
Embodiment
In order to make the technical problem to be solved in the present invention, technical scheme and beneficial effect clearer,, the present invention is further elaborated below in conjunction with embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
The embodiment of the invention provides a kind of toughness, weathering resistance, PC-ASA alloy material that ageing resistance is strong.This PC-ASA alloy material comprises the component of following parts by weight:
25～80 parts of polycarbonate (PC), 3～18 parts of acrylonitrile-styrene-acrylic ester terpolymers (ASA), 5～25 parts of organosilicon-polycarbonate block copolymers, 1～10 part of acrylonitritrile-styrene resin.
Above-mentioned PC-ASA alloy material is a resin matrix with polycarbonate and acrylonitrile-styrene-acrylic ester terpolymer, by adding organosilicon-polycarbonate block copolymer, effectively reduce the internal stress of resin matrix, increased the toughness of PC-ASA alloy material; Acrylonitritrile-styrene resin makes effectively that each component is intermolecular has an effect, thereby makes each component interosculate, and forms constitutionally stable PC-ASA alloy material.This PC-ASA alloy material preparation method operation is simple, easily control, and cost is low, is fit to suitability for industrialized production.
Particularly, above-mentioned polycarbonate preferred molten index M I (300 ℃ 1.2KG) are the polycarbonate of 3～15g/10min.More preferably melting index MI (300 ℃ 1.2KG) are the polycarbonate of 4～8g/10min.The polycarbonate component of this preferred melt flow rate (MFR) scope can improve the toughness of PC-ASA alloy material effectively.This polycarbonate component influences PC-ASA alloy material flexible to be stated shown in the table 2 as follows.
Aforesaid propylene nitrile-cinnamic acrylic ester terpolymer (ASA) can be this area ASA commonly used.As being acrylonitrile-styrene-acrylic ester terpolymer by Korea S's brocade lake bright sun Plastics Company manufacturer product XC-180 by name.
(300 ℃ of above-mentioned organosilicons-polycarbonate block copolymer preferred molten index M I, 1.2KG) be organosilicon-polycarbonate block copolymer of 1～10g/10min, more preferably melting index MI (300 ℃ 1.2KG) are organosilicon-polycarbonate block copolymer of 2～6g/10min.The organosilicon of this preferred melt flow rate (MFR) scope-polycarbonate block copolymer component can improve the shock strength of PC-ASA alloy material effectively, further improves PC-ASA alloy material toughness.It influences PC-ASA alloy material flexible states shown in the table 2 as follows.This organosilicon-polycarbonate block copolymer claims polydimethylsiloxane-polycarbonate block copolymer again, is by α, and the polydimethylsiloxane that two ends are the dihydroxyphenyl propane group is made in ω-dichloro-polydimethylsiloxane and dihydroxyphenyl propane condensation; Then, add the dihydroxyphenyl propane photoreactive gas again and carry out copolycondensation, obtain organosilicon-polycarbonate block copolymer.Contain polydimethylsiloxane and polycarbonate structure in its molecular chain,, reduced the softening temperature and the melting viscosity of pure polycarbonate (PC), improved impelling strength and pyrolysis temperature range because of the introducing of dimethyl siloxane chain link.
(300 ℃ of aforesaid propylene nitrile-styrol copolymer (SAN) preferred molten index M I, 1.2KG) be 3～5g/10min acrylonitritrile-styrene resin, wherein, to be preferably vinyl cyanide segment content be 27～29% acrylonitritrile-styrene resin to acrylonitritrile-styrene resin.This acrylonitritrile-styrene resin component is used as compatilizer in the present invention, and the existence of this component makes that each component is intermolecular to have an effect, thereby makes each component interosculate, and forms constitutionally stable PC-ASA alloy material.Wherein vinyl cyanide segment content is that this acrylonitritrile-styrene resin of 27～29% helps more that each component is intermolecular has an effect, thereby makes each component interosculate more firmly with stable, thereby makes that PC-ASA alloy material structure is more stable.
Further, the embodiment of the invention also can comprise the recipe ingredient of following parts by weight except the recipe ingredient that comprises above-mentioned parts by weight:
5～25 parts of fire retardants, stablizer, oxidation inhibitor are 0.1～3 part altogether, 0.1～3 part of UV light absorber.
Particularly, the existence of above-mentioned flame retardant compositions makes the PC-ASA alloy material possessing outside the above-mentioned good characteristic, also has good flame retardant property.Wherein, this fire retardant is preferably the Halogen phosphorus flame retardant.This fire retardant hangs down cigarette, low toxicity, environmental protection, makes PC-ASA alloy material safety, and low toxicity, environmental protection.Certainly, also can adopt other fire retardant of this area to substitute, as inorganic combustion inhibitor, halogenated flame retardant etc.
The existence of above-mentioned antioxidant component makes the PC-ASA alloy material possessing outside the above-mentioned good characteristic, also has good antioxygen property, further strengthens the stability of PC-ASA alloy material.Wherein, this oxidation inhibitor preferably includes main anti-oxidant and auxiliary antioxidant, and the quality optimization of this main anti-oxidant and auxiliary antioxidant is 1: 2.Wherein, main anti-oxidant is preferably β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid octadecanol ester, and its molecular weight is 530.86g/mol, trade(brand)name IRGANOX1076; Auxiliary antioxidant is preferably three (2, the 4-di-tert-butyl-phenyl) phosphorous acid ester, and molecular weight is 646.9g/mol, trade(brand)name IRGANOX168, and Switzerland Ciba company produces.Like this, by primary antioxidant and auxiliary antioxidant and other component actings in conjunction, improved the antioxidant property of PC-ASA alloy material effectively.
The existence of above-mentioned UV light absorber component makes the PC-ASA alloy material possess outside the above-mentioned good characteristic, has also further strengthened weathering resistance, the ageing resistance of alloy material.Wherein, this UV light absorber is preferably benzotriazole compound, as one or more of UV234, UV944, UV327.
The existence of stabilizer component helps reducing PC-ASA alloy material surface tension, prevents effects such as light, thermolysis or oxygenolysis.Can be Pb stabilizer, as lead sulfate tribasic, dibasic lead stearate, or metallic soap class stablizer, as Zinic stearas (ZnSt), lead stearate (PbSt) etc., certainly, can use the stablizer of the other types of this area to substitute.
Certainly, embodiment of the invention PC-ASA alloy material can also can also comprise other auxiliary agent according to concrete needs.As in processing aid, releasing agent, the tinting material one or more.
The present invention also provides above-mentioned PC-ASA alloy material preparation method, and its technical process as shown in Figure 1.This method comprises the steps:
S1: by above-mentioned PC-ASA alloy material prescription each component is mixed, form mixture;
S2:, obtain described PC-ASA alloy material with the mixture extruding pelletization.
Above-mentioned PC-ASA alloy material preparation method is mixed in proportion each component, handles to obtain product through extruding pelletization.Operation is simple, easily control, and cost is low, is fit to suitability for industrialized production.
Particularly, in the above-mentioned PC-ASA alloy material preparation method S1 step, by prescription each component is mixed, hybrid mode can be put into each component mixing machine and carry out thorough mixing, and mixing time is preferably 20～30min, makes each component mix.
In the above-mentioned PC-ASA alloy material preparation method S2 step, the mixture extruding pelletization preferably adopts the twin screw extruder extruding pelletization, is CTE-35 (L/D=48) twin screw extruder as the model of producing by Nanjing Ke Ya company.Because in the S1 step in the prescription about the PC-ASA alloy material, comprise organosilicon-polycarbonate block copolymer, contain the dimethylsilane chain link in this multipolymer, effectively reduced the softening temperature and the melting viscosity of PC component, thereby effectively reduced PC-ASA alloy material extrusion temperature.In extruding pelletization, mixture is preferably 140～160 ℃ in a district at the spout of this twin screw extruder respectively to the temperature of each section of die head, 190～210 ℃ in two districts, 190～210 ℃ in three districts, 210～230 ℃ in four districts, 210～230 ℃ in five districts, 220～240 ℃ in six districts, 220～240 ℃ in seven districts, 210～230 ℃ in eight districts, 230～240 ℃ of heads, the rotating speed of described twin screw extruder screw rod are 250～300 rev/mins.Under this preferred processing condition, can make between each component to interact, thus the PC-ASA alloy material of formation stable performance.
Now prescription and the preparation method with concrete PC-ASA alloy material is example, and the present invention is further elaborated.
Embodiment 1
The prescription of PC-ASA alloy material sees Table 1.Wherein, PC is the common PC powder of MI:9～12g/10min, ASA is Korea S's brocade lake bright sun Plastics Company manufacturer product XC-180 by name, the MI of organosilicon-polycarbonate block copolymer is: 2～6g/10min, oxidation inhibitor is β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid octadecanol ester of 0.1 part and three (2, the 4-di-tert-butyl-phenyl) phosphorous acid ester of 0.2 part, stablizer is ZnSt, and UV light absorber is UV944.
Its preparation method is as follows:
S11. the prescription of pressing in the table 1 mixes each component, forms uniform mixture;
S12. with the spout feeding of mixture, adopt the screw extrusion press extruding pelletization, obtain described PC-ASA alloy material from screw extrusion press, mixture is preferably 140 ℃ in a district at the spout of this twin screw extruder respectively to the temperature of each section of die head, 190 ℃ in two districts, 190 ℃ in three districts, 230 ℃ in four districts, 230 ℃ in five districts, 240 ℃ in six districts, 240 ℃ in seven districts, 230 ℃ in eight districts, 240 ℃ of heads, the rotating speed of described twin screw extruder screw rod are 250 rev/mins.
Embodiment 2
The prescription of PC-ASA alloy material sees Table 1.Wherein, ASA is Korea S's brocade lake bright sun Plastics Company manufacturer product XC-180 by name, oxidation inhibitor is 0.1 part β-(3, the 5-di-tert-butyl-hydroxy phenyl) three (2 of propionic acid octadecanol ester and 0.2 part, the 4-di-tert-butyl-phenyl) phosphorous acid ester, stablizer is ZnSt, and UV light absorber is UV944.
Its preparation method such as embodiment 1.
Embodiment 1 to embodiment 8 sees Table 1, and accordingly the correlated performance by the PC-ASA alloy material of embodiment 1～8 preparation sees Table 2.
Embodiment 9
The component of the parts by weight of PC-ASA alloy material is: MI is 25 parts of the polycarbonate (PC) of 4～8g/10min, 3 parts of acrylonitrile-styrene-acrylic ester terpolymers (ASA), 25 parts of organosilicon-polycarbonate block copolymers, 10 parts of acrylonitritrile-styrene resins.
Its preparation method is as follows:
S11. by above-mentioned prescription each component is mixed, form uniform mixture;
S12. with the spout feeding of mixture, adopt the screw extrusion press extruding pelletization, obtain described PC-ASA alloy material from screw extrusion press, in, mixture is preferably 160 ℃ in a district respectively, 210 ℃ in two districts at the spout of this twin screw extruder to the temperature of each section of die head, 210 ℃ in three districts, 210 ℃ in four districts, 210 ℃ in five districts, 220 ℃ in six districts, 220 ℃ in seven districts, 210 ℃ in eight districts, 230 ℃ of heads, the rotating speed of described twin screw extruder screw rod are 250～300 rev/mins.The PC-ASA alloy material performance of PC-ASA alloy material performance similar embodiment 4 preparations of these embodiment 9 preparations.
Embodiment 10
The component of the parts by weight of PC-ASA alloy material is: MI is 80 parts of the carbonic ethers (PC) of 4～8g/10min, 18 parts of acrylonitrile-styrene-acrylic ester terpolymers (ASA), 5 parts of organosilicon-polycarbonate block copolymers, 1 part of acrylonitritrile-styrene resin.
Its preparation method is as follows:
S11. by above-mentioned prescription each component is mixed, form uniform mixture;
140～160 ℃ in one district, 190～210 ℃ in two districts, 190～210 ℃ in three districts, 210～230 ℃ in four districts, 210～230 ℃ in five districts, 220～240 ℃ in six districts, 220～240 ℃ in seven districts, 210～230 ℃ in eight districts, 230～240 ℃ of heads, the rotating speed of described twin screw extruder screw rod are 250～300 rev/mins
S12. with the spout feeding of mixture, adopt the screw extrusion press extruding pelletization, obtain described PC-ASA alloy material from screw extrusion press, mixture is preferably 150 ℃ in a district at the spout of this twin screw extruder respectively to the temperature of each section of die head, 200 ℃ in two districts, 200 ℃ in three districts, 220 ℃ in four districts, 220 ℃ in five districts, 230 ℃ in six districts, 230 ℃ in seven districts, 220 ℃ in eight districts, 235 ℃ of heads, the rotating speed of described twin screw extruder screw rod are 280 rev/mins.The PC-ASA alloy material performance of PC-ASA alloy material performance similar embodiment 4 preparations of these embodiment 10 preparations.
The prescription of table 1 embodiment 1 to embodiment 8
The prescription correlated performance of table 2 embodiment 1～8
By last table 1 and table 2 as can be known, when the Halogen phosphorus flame retardant that uses reach 10 parts and more than, PC-ASA alloy material flame retardant properties can reach the V-0 rank.Above-mentioned 8 prescriptions are with the prepared alloy material over-all properties optimum of the prescription of embodiment 4.Keeping under the certain situation of oxidation inhibitor, stablizer, UV light absorber and other processing aid adding proportion, the toughness of material depends primarily on the MI value and the adding proportion of common PC powder, organosilicon-polycarbonate block copolymer.Comparative example 4 draws with embodiment 5, embodiment 6 experimental results, under the certain situation of common PC powder MI value, selection is than low melt index (organosilicon-polycarbonate block copolymer of 2～6g/10min), and when reaching certain addition (about 7 parts or more than), can give PC-ASA alloy material impact property preferably; Simultaneously, comparative example 4, embodiment 5, embodiment 6 find that with embodiment 1, embodiment 2, embodiment 3 experimental results common PC powder will be because the difference of viscosity also will directly have influence on the toughness of alloy material; The impact property of PC-ASA alloy under the high and low temperature condition then further guaranteed in the use of ASA resin.Do not contain organosilicon-Copolycarbonate in embodiment 8 experiment, by with the contrast of embodiment 1 to embodiment 7 experiment, toughness indexs such as its impact property obviously descend.This phenomenon further specifies: a large amount of silicon-oxygen key that organosilicon-Copolycarbonate uses the back to be produced can improve the impelling strength of material, makes the PC-ASA alloy more full of elasticity and become tough and tensile.
For most of engineering plastics, shock strength is that variation was maximum during weathering test detected, decline is the most tangible.Therefore, the PC-ASA alloy material that relates to of the embodiment of the invention selects for use shock strength as test index heat-resisting, ageing-resistant performance.PC-ASA alloy material exemplar is placed on place in 90 ℃ the baking oven and carries out the socle girder test with notched test piece after 2000 hours and find, when the ASA addition reaches 10 parts and when above, because the mechanical properties decrease that thermal ageing caused is slower, and meet the requirement of material mechanical performance conservation rate 〉=85% behind the artificial acceleration anti-aging test, it ascribes heat-resisting, the ageing-resistant performance role of ASA resin for alloy material to.
Weathering resistance aspect, the embodiment of the invention mainly are to observe the variation of material color by the fluorescent ultraviolet lamp irradiation experiment of 10 circulations (240 hours).By experimental result as can be known, aberration Δ E is relevant with the content of ASA resin.In ultraviolet (UV) aging test, 10 parts ASA addition makes in alloy material colour-change Δ E＜1, especially embodiment 4 prescriptions in embodiment 1 to embodiment 6 prescription, aberration Δ E ≈ 0.5, and material possesses stronger ultra-violet radiation resisting ability.
Because in the related PC-ASA alloy preparation process of the embodiment of the invention, select components such as appropriate PC powder, ASA resin, organosilicon-polycarbonate block copolymer, fire retardant, make the PC-ASA alloy material possess good toughness, ageing-resistant, weather-proof and flame retardant properties.Therefore, this PC-ASA alloy material be widely used in communication use fiber cable cross connection box, air conditioner housing, outdoor goods such as grass-remover, automobile external spare.
The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. PC-ASA alloy material comprises the recipe ingredient of following parts by weight:
25～80 parts of polycarbonate, 3～18 parts of acrylonitrile-styrene-acrylic ester terpolymers, 5～25 parts of organosilicon-polycarbonate block copolymers, 1～10 part of acrylonitritrile-styrene resin.
2. PC-ASA alloy material according to claim 1 is characterized in that: under 300 ℃ and 1.2Kg condition, described polycarbonate melt index M I is 3～15g/10min.
3. PC-ASA alloy material according to claim 1 is characterized in that: under 300 ℃ and 1.2Kg condition, described polycarbonate melt index M I is 4～8g/10min.
4. PC-ASA alloy material according to claim 1 is characterized in that: under 300 ℃ and 1.2Kg condition, described organosilicon-polycarbonate block copolymer melting index MI is 1～10g/10min.
5. PC-ASA alloy material according to claim 1 is characterized in that: under 300 ℃ and 1.2Kg condition, described organosilicon-polycarbonate block copolymer melting index MI is 2～6g/10min.
6. PC-ASA alloy material according to claim 1 is characterized in that: under 300 ℃ and 1.2Kg condition, described acrylonitritrile-styrene resin melting index MI is 3～5g/10min; Vinyl cyanide segment content in the described acrylonitritrile-styrene resin is 27～29%.
7. PC-ASA alloy material according to claim 1 is characterized in that: the recipe ingredient that also comprises following parts by weight:
5～25 parts of fire retardants, stablizer, oxidation inhibitor are 0.1～3 part altogether, 0.1～3 part of UV light absorber.
8. PC-ASA alloy material according to claim 1 is characterized in that: described fire retardant is the Halogen phosphorus flame retardant; Described oxidation inhibitor comprises main anti-oxidant and auxiliary antioxidant.
9. a PC-ASA alloy material preparation method comprises the steps:
By the arbitrary described PC-ASA alloy material prescription of claim 1～8 each component is mixed, form mixture;
With described mixture extruding pelletization, obtain described PC-ASA alloy material.
10. PC-ASA alloy material preparation method according to claim 9, it is characterized in that: described mixture extruding pelletization is to adopt the twin screw extruder extruding pelletization, described mixture is respectively in the spout of the described twin screw extruder temperature to each section of die head: 140～160 ℃ in a district, 190～210 ℃ in two districts, 190～210 ℃ in three districts, 210～230 ℃ in four districts, 210～230 ℃ in five districts, 220～240 ℃ in six districts, 220～240 ℃ in seven districts, 210～230 ℃ in eight districts, 230～240 ℃ of heads, the rotating speed of described twin screw extruder screw rod are 250～300 rev/mins.
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| CN103408912A (en) * | 2013-08-09 | 2013-11-27 | 深圳市科聚新材料有限公司 | PC/ASA alloy and preparation method thereof |
| CN103483795A (en) * | 2013-09-04 | 2014-01-01 | 深圳市兴盛迪新材料有限公司 | PC/ASA (polycarbonate/acrylonitrile-styrene-acrylate) composition with improved hardness and cold resistance |
| CN103724962A (en) * | 2013-12-03 | 2014-04-16 | 深圳市兴盛迪新材料有限公司 | Weather-proof anti-aging copolymer alloy of polycarbonate and acrylonitrile-phenethylene-acrylate and manufacturing method of copolymer alloy |
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| CN112646341A (en) * | 2020-11-27 | 2021-04-13 | 张家港大塚化学有限公司 | Preparation process of halogen-free flame-retardant, antistatic, high-wear-resistance and high-strength PC/ASA alloy |
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