CN102898759A - Acrylonitrile-ethylene-styrene (AES) resin composition and preparation method thereof - Google Patents
Acrylonitrile-ethylene-styrene (AES) resin composition and preparation method thereof Download PDFInfo
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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
- B29C48/36—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
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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
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
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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
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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
- B29C2948/92895—Barrel or housing
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Abstract
The invention discloses an acrylonitrile-ethylene-styrene (AES) resin composition and a preparation method thereof. The composition comprises the following components in parts by weight: 10 to 50 parts of ethylene-propylene-diene monomer (EPDM) master batch, 50 to 90 parts of styrene-acrylonitrile (SAN) resin master batch, 0.02 to 0.2 part of initiator, 0.5 to 5 parts of co-crosslinker, and 0.3 to 1 part of antioxidant. The composition is prepared by adopting a reactive extrusion grafting method; and a compatilizer containing maleic anhydride (MAH) active functional groups, a compatilizer containing glycidyl methacrylate (GMA) active functional groups and modified EPDM and SAN resin are respectively prepared into the master batches, then other raw materials are added, the raw materials are stirred and mixed, and the mixture is extruded and granulated to form a sample. The reactive extrusion grafting method is environment-friendly, simple in equipment and convenient to operate; and the prepared composition has excellent weather resistance, low-temperature impact resistance, chemical corrosion resistance, size stability and processing performance, and can be applied to outdoor products such as building materials, sports equipment, communication equipment shells and automotive parts.
Description
Technical field
The present invention relates to resin combination and preparation method thereof, relate in particular to a kind of AES resin combination with and the preparation method of reactive extrusion.
Background technology
The AES resin is that vinyl cyanide (AN) and vinylbenzene (ST) are grafted to the multipolymer that forms on terpolymer EP rubber (EPDM) main chain.It is similar that AES resin and general ABS resin are compared basic physical properties, but owing to having adopted the terpolymer EP rubber rubber of saturability to replace the polybutadiene rubber of nonsaturation, thereby have good weathering resistance, low-temperature impact property and a chemicals-resistant corrosive nature, remedied the performance deficiency of ABS resin, can be widely used in the outdoor products such as material of construction, sports equipment, communication equipment shell, automobile component, development space is huge, is a kind of up-and-coming engineering plastics.
The state difference that the graft copolymerization of AES resin is participated in polyreaction with main polymer can be divided into aqueous suspension polymerization, emulsion polymerization, solution polymerization process, mass polymerization etc., these methods to equipment require high, three wastes treatment capacity is large, environmental pollution is serious, and percentage of grafting is on the low side.Be the Chinese invention patent application of 102127192A such as publication number, this invention relates to " a kind of method for preparing continuous bulk of AES resin; it comprises: finish dissolving with heating up in EPDM (terpolymer EP rubber) the adding solvent; with vinylbenzene; vinyl cyanide; initiator; chain-transfer agent, oxidation inhibitor, form the rubber solutions system after the mix lubricant, tower reactor through three series connection carries out graft polymerization reaction successively, the secondary vacuum volatilization is adopted in aftertreatment, by the control rubber clone, rubber content, the material feeding ratio is to make suitable injection moulding, extrude the AES resin of processing.”
Also find in the prior art retrieval, be the Chinese invention patent of CN101544727 such as publication number, this invention relates to " a kind of AES resin with high impact and preparation method thereof; this resin is the graft copolymer that the particle diameter of ethylene-propylene rubber(EPR), divinyl rubber and monoalkyl vinyl aromatic monomer and unsaturated nitrile monomer formation is bimodal distribution, and the mass ratio of described ethylene-propylene rubber(EPR) and divinyl rubber is 1: 0.05～0.25.The material that the preparation method of AES resin comprises batching, prepare carries out graft polymerization reaction and final reaction melt by devolatilization forcing machine granulation step in reactor, wherein, graft polymerization reaction refers to more than pressure 0.5MPa, under the agitation condition, make starting material experience successively four-stage and obtain reaction melt, the temperature of four-stage is followed successively by 95 ℃～105 ℃, 110 ℃～115 ℃, 120 ℃～123 ℃ and 140 ℃～150 ℃.”
Summary of the invention
The object of the invention is to overcome above-mentioned the deficiencies in the prior art, a kind of AES resin combination and preparation method thereof is provided.The present invention adopts the method for reactive extrusion, by the processing condition of control material proportion, control reactive extrusion, obtains the AES resin of a kind of environmental friendliness, excellent performance.More environmental protection of the present invention, equipment is simpler, technological operation is more convenient, percentage of grafting improves, have good weathering resistance, low-temperature impact property and chemicals-resistant corrosive nature, can be widely used in the outdoor products such as material of construction, sports equipment, communication equipment shell, automobile component.
The objective of the invention is to be achieved through the following technical solutions:
The present invention relates to a kind of AES resin combination, comprise each component of following parts by weight:
10～50 parts of EPDM master batches,
50～90 parts of SAN masterbatch resins,
0.02～0.2 part of initiator,
0.5～5 part of additional crosslinker,
0.3～1 part in oxidation inhibitor.
Preferably, described EPDM master batch comprises each component of following parts by weight:
80～90 parts of modified epdms,
10～20 parts of compatilizer A,
0.3～1 part in oxidation inhibitor.
Preferably, described modified epdm is one or more among bromination EPDM, chlorination EPDM, sulfonated epdm, cis-butenedioic anhydride EPDM, maleation EPDM and the propylene nitrilation EPDM; The weight percent content of EPDM is 88～98% in the described modified epdm.
Preferably, the described compatilizer A weight percent content that is MAH is that the weight percent content of graft copolymer, the GMA active function groups of 1～10% ethylene-propylene acid resin and maleic anhydride MAH is one or more in the graft copolymer of 1～10% ethylene-propylene acid resin and glycidyl methacrylate GMA active function groups.
Preferably, described compatilizer A is one or more in ethylene-methyl acrylate-maleic anhydride, ethylene-propylene acid butyl ester-maleic anhydride, ethylene-propylene acetoacetic ester-maleic anhydride, ethylene-methyl acrylate-glyceryl methacrylate ternary atactic copolymer, the ethylene-propylene acid butyl ester-glycidyl methacrylate ternary atactic copolymer.
Preferably, described EPDM master batch be prepare by the following method and:
(1) with 80～90 weight part modified epdms, 10～20 weight part compatilizer A, 0.3～1 weight part oxidation inhibitor is put into homogenizer and is stirred that discharging obtains mixture after 5～30 minutes;
(2) the main charging opening of described mixture from twin screw extruder added, through the twin screw extruder extruding pelletization, the barrel zone temperature of control forcing machine is 150～220 ℃, and screw speed is 100～400rpm, and extruding pelletization obtains described EPDM master batch.
Preferably, described SAN masterbatch resin comprises each component of following parts by weight:
80～90 parts of SAN resins,
10～20 parts of compatilizer B,
0.3～1 part in oxidation inhibitor.
Preferably, described SAN resin is that weight-average molecular weight is 100,000～250,000 vinyl cyanide and cinnamic graft copolymer; The weight percent content of vinyl cyanide is 28～38% in described vinyl cyanide and the cinnamic graft copolymer.
Preferably, one or more in the graft copolymer of the described compatilizer B graft copolymer that is styrene-acrylonitrile SAN resin and maleic anhydride MAH, glycidyl methacrylate GMA active function groups; Described glycidyl methacrylate GMA active function groups can with compatilizer A in glycidyl methacrylate GMA active function groups generation chemical reaction.
Preferably, described compatilizer B is one or both in styrene-acrylonitrile-maleic anhydride, the styrene-acrylonitrile-glycidyl methacrylate ternary atactic copolymer; The weight percent content of glycidyl methacrylate is 1～10% in the described ternary atactic copolymer.
Preferably, described SAN masterbatch resin be prepare by the following method and:
(1) with 80～90 weight part SAN resins, 10～20 weight part compatilizer B, 0.3～1 weight part oxidation inhibitor put into homogenizer and stir that discharging obtains mixture after 5～30 minutes;
(2) the main charging opening of mixture from twin screw extruder added, through the twin screw extruder extruding pelletization, the barrel zone temperature of control forcing machine is 180～230 ℃, and screw speed is 200～600rpm, and extruding pelletization obtains described SAN masterbatch resin.
Preferably, described initiator is dicumyl peroxide DCP, two (tert-butyl peroxide) diisopropylbenzene(DIPB) BIPB or two two or five ［ 2,5-diethyl-2,5-two (tert-butyl peroxide) hexanes ］.
Preferably, described additional crosslinker is that fusing point is 20～40 ℃ iso-cyanuric acid triallyl ester TAIC.
The invention still further relates to a kind of preparation method of aforesaid AES resin combination, comprise the steps:
(1) 10～50 weight part EPDM master batches, 50～90 weight part SAN masterbatch resins, 0.02～0.2 weight part initiator, 0.5～5 weight part additional crosslinker and 0.3～1 weight part oxidation inhibitor are put into homogenizer and are stirred 5-30min after discharging obtain mixture;
(2) the main charging opening of described mixture from twin screw extruder added, through the twin screw extruder extruding pelletization, the barrel zone temperature of control forcing machine is 150～220 ℃, and screw speed is 100～400rpm, and extruding pelletization obtains sample.
The present invention solves that the prior art equipment requirements is high, three wastes treatment capacity is large, and environmental pollution is serious, the shortcoming that percentage of grafting is on the low side.Compared with prior art, the present invention has following beneficial effect:
(1) adopt the method for reactive extrusion to substitute existing graft polymerization procedure, equipment is simple, and technology controlling and process is convenient, and the industrialization cost is low, and environment is very friendly, has avoided discharging a large amount of three wastes;
(2) select with compatilizer A and the modified epdm of MAH and GMA active function groups and make master batch, an end is compatible with matrix EPDM, and the other end active function groups and compatilizer B react.Select with compatilizer A chemical reaction can occur, have the compatilizer B of different activities functional group, an end can with the SAN resin compatible, the other end and compatilizer A react, thereby improved the consistency of SAN resin and modified epdm;
(3) select and contain two effective peroxy group DCP or PIBP can produce free radical at short notice as initiator, make the reaction of modified epdm and SAN resin generation cross-linked graft, and the adding of additional crosslinker iso-cyanuric acid triallyl ester (TAIC) can promote the cross-linked graft reaction, raises the efficiency.
To sum up, the more environmental protection of the method for reactive extrusion of the present invention, equipment is simpler, technological operation is more convenient, the AES resin combination of gained has good weathering resistance, low-temperature impact property and chemicals-resistant corrosive nature, can be widely used in the outdoor products such as material of construction, sports equipment, communication equipment shell, automobile component.
Embodiment
The present invention is described in detail below in conjunction with specific embodiment.Following examples will help those skilled in the art further to understand the present invention, but not limit in any form the present invention.Should be pointed out that to those skilled in the art, without departing from the inventive concept of the premise, can also make some distortion and improvement.These all belong to protection scope of the present invention.
Embodiment 1
The AES resin combination of the present embodiment comprises each component and parts by weight thereof as shown in table 1.Its preparation method is specific as follows:
One, preparation EPDM master batch
With 90Kg modified epdm (maleation EPDM, wherein, EPDM content is 95wt%), 10Kg compatilizer A ethylene-methyl acrylate-maleic anhydride (wherein, MAH content is 1wt%) and 0.5Kg oxidation inhibitor joins and stirs discharging after 15 minutes in the high-speed mixer, obtains mixture A.Mixture A is added from the main charging opening of twin screw extruder, and through the twin screw extruder extruding pelletization, the barrel zone temperature of control forcing machine is 150～180 ℃, and screw speed is 100～200rpm, and extruding pelletization obtains the EPDM master batch.
Two, preparation SAN masterbatch resin
(weight-average molecular weight is 100 to the 90KgSAN resin, 000～150,000, wherein, the content of vinyl cyanide is 33wt%), 10Kg compatilizer B styrene-acrylonitrile-glycidyl methacrylate (wherein, GMA content is 5wt%), 0.5Kg oxidation inhibitor are put into homogenizer and are stirred that discharging obtains mixture B after 20 minutes.Mixture B is added from the main charging opening of twin screw extruder, and through the twin screw extruder extruding pelletization, the barrel zone temperature of control forcing machine is 180～200 ℃, and screw speed is 200～350rpm, and extruding pelletization obtains the SAN masterbatch resin.
Three, preparation AES resin combination
Discharging obtained mixture C after 10KgEPDM master batch, 90KgSAN masterbatch resin, 0.05Kg initiator dicumyl peroxide, 2Kg additional crosslinker iso-cyanuric acid triallyl ester (fusing point is 20～40 ℃) and 0.5Kg oxidation inhibitor put into homogenizer and stir 20min.The main charging opening of mixture C from twin screw extruder added, and through the twin screw extruder extruding pelletization, the barrel zone temperature of control forcing machine is 150～200 ℃, and screw speed is 100～250rpm, and extruding pelletization obtains sample.
Embodiment 2～4
In order to embody preferably the characteristics of above-mentioned AES resin combination, the present invention has used embodiment 2～4, compared different EPDM master batch consumptions, different SAN masterbatch resin consumption, different additional crosslinker consumption to the impact of product performance, concrete component prescription sees table 1 for details, and step is with embodiment 1.
Embodiment 5
The AES resin combination of the present embodiment comprises each component and parts by weight thereof as shown in table 1.Its preparation method is specific as follows:
One, preparation EPDM master batch
(mass ratio is bromination EPDM, sulfonated epdm and the chlorination EPDM of 1:1:1 with the 80Kg modified epdm, wherein EPDM content is that 88wt%～92wt%), 20Kg compatilizer A(compatilizer A are: MAH content is ethylene-propylene acid butyl ester-maleic anhydride of 10wt% and ethylene-propylene acid butyl ester-glycidyl methacrylate that GMA content is 1wt%, the two mass ratio can be any ratio, be preferably 1:2 in the present embodiment) and 1Kg oxidation inhibitor join in the high-speed mixer and to stir discharging after 5 minutes, obtain mixture A.Mixture A is added from the main charging opening of twin screw extruder, and through the twin screw extruder extruding pelletization, the barrel zone temperature of control forcing machine is 180～200 ℃, and screw speed is 200～300rpm, and extruding pelletization obtains the EPDM master batch.
Two, preparation SAN masterbatch resin
(weight-average molecular weight is 150 to the 80KgSAN resin, 000～200,000, wherein, acrylonitrile content is 38wt%), 20Kg compatilizer B styrene-acrylonitrile-glycidyl methacrylate (wherein, GMA content is 10wt%), 1Kg oxidation inhibitor are put into homogenizer and are stirred that discharging obtains mixture B after 30 minutes.Mixture B is added from the main charging opening of twin screw extruder, and through the twin screw extruder extruding pelletization, the barrel zone temperature of control forcing machine is 200～230 ℃, and screw speed is 350～500rpm, and extruding pelletization obtains the SAN masterbatch resin.
Three, preparation AES resin combination
Discharging obtained mixture C after 50KgEPDM master batch, 50KgSAN masterbatch resin, 0.2Kg initiator two (tert-butyl peroxide) diisopropylbenzene(DIPB), 0.5Kg additional crosslinker iso-cyanuric acid triallyl ester (fusing point is 20～40 ℃) and 0.3Kg oxidation inhibitor put into homogenizer and stir 5min.The main charging opening of mixture C from twin screw extruder added, and through the twin screw extruder extruding pelletization, the barrel zone temperature of control forcing machine is 200～220 ℃, and screw speed is 250～400rpm, and extruding pelletization obtains sample.
Embodiment 6
The AES resin combination of the present embodiment comprises each component and parts by weight thereof as shown in table 1.Its preparation method is specific as follows:
One, preparation EPDM master batch
With 85Kg modified epdm (propylene nitrilation EPDM, wherein, EPDM content is 98wt%), 15Kg compatilizer A ethylene-methyl acrylate-glyceryl methacrylate (wherein, the content of GMA active function groups is 10wt%) and 0.3Kg oxidation inhibitor join in the high-speed mixer and to stir discharging after 30 minutes, obtain mixture A.Mixture A is added from the main charging opening of twin screw extruder, and through the twin screw extruder extruding pelletization, the barrel zone temperature of control forcing machine is 200～220 ℃, and screw speed is 300～400rpm, and extruding pelletization obtains the EPDM master batch.
Two, preparation SAN masterbatch resin
(weight-average molecular weight is 200 to the 85KgSAN resin, 000～250,000, wherein, acrylonitrile content is 28wt%), 15Kg compatilizer B(compatilizer B is: GMA content is styrene-acrylonitrile-glycidyl methacrylate and the styrene-acrylonitrile-maleic anhydride of 1wt%, and the two mass ratio can be any ratio, be 2:3 in the present embodiment), 0.3Kg oxidation inhibitor is put into homogenizer and is stirred that discharging obtains mixture B after 5 minutes.Mixture B is added from the main charging opening of twin screw extruder, and through the twin screw extruder extruding pelletization, the barrel zone temperature of control forcing machine is 200～210 ℃, and screw speed is 500～600rpm, and extruding pelletization obtains the SAN masterbatch resin.
Three, preparation AES resin combination
With 40KgEPDM master batch, 60KgSAN masterbatch resin, 0.02Kg initiator two 25 ［ 2,5-diethyl-2,5-two (tert-butyl peroxide) hexane ］, 0.5Kg additional crosslinker iso-cyanuric acid triallyl ester (fusing point is 20～40 ℃) and 1Kg oxidation inhibitor put into homogenizer and stir 30min after discharging obtain mixture C.The main charging opening of mixture C from twin screw extruder added, and through the twin screw extruder extruding pelletization, the barrel zone temperature of control forcing machine is 180～200 ℃, and screw speed is 200～300rpm, and extruding pelletization obtains sample.
Comparative Examples 1～3
In order to embody preferably the characteristics of AES resin combination of the present invention, Comparative Examples 1～3 has also been used single stage method and has been added prescription that the prescription of compatilizer, single stage method do not add compatilizer, used the prescription of emulsion method AES resin to do contrast, and concrete major ingredient prescription sees table 1 for details.
The formula table of table 1 embodiment 1～6 and Comparative Examples 1～3
Embodiment 7, performance test
For the above AES resin combination for preparing according to embodiment 1～4 and Comparative Examples 1～3, prepare test bars according to identical injecting condition, concrete physicals test item is as follows:
Tensile strength: measure tensile strength according to ASTM D 638 standards.
Normal temperature notched Izod impact strength: measure the normal temperature notched Izod impact strength according to ASTM D256 standard (1/8 " breach, 23 ℃).
Melt flow rate (MFR): (220 ℃ of temperature, load 10Kg) measures melt flow rate (MFR) according to ASTM D 1238 standards.
The performance comparison of table 2 embodiment 1～4 and Comparative Examples 1～3
Performance Ratio by table 2 can find out, the AES resin that reactive extrusion makes is with the AES resin of emulsion method preparation, has higher shock strength and better flowing property; Along with the raising of EPDM master batch consumption, the shock strength of material obviously improves, and the flowability of material reduces, and tensile strength descends; The raising of additional crosslinker consumption can cause crosslinked, and shock strength is reduced, the mobile reduction; Add compatilizer but when using single stage method, two kinds of compatilizers are not distributed to respectively in EPDM and the SAN resin, but the direct anti-chemical reaction of having given birth to does not play the effect that improves consistency, shows shock strength, tensile strength and flowability all on the low side; It is then poorer that the employing single stage method does not add the performance of compatilizer.
Above demonstration and described ultimate principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; that describes in above-described embodiment and the specification sheets just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (14)
1. an AES resin combination is characterized in that, comprises each component of following parts by weight:
10～50 parts of EPDM master batches,
50～90 parts of SAN masterbatch resins,
0.02～0.2 part of initiator,
0.5～5 part of additional crosslinker,
0.3～1 part in oxidation inhibitor.
2. AES resin combination according to claim 1 is characterized in that, described EPDM master batch comprises each component of following parts by weight:
80～90 parts of modified epdms,
10～20 parts of compatilizer A,
0.3～1 part in oxidation inhibitor.
3. AES resin combination according to claim 2 is characterized in that, described modified epdm is one or more among bromination EPDM, chlorination EPDM, sulfonated epdm, cis-butenedioic anhydride EPDM, maleation EPDM and the propylene nitrilation EPDM; The weight percent content of EPDM is 88～98% in the described modified epdm.
4. AES resin combination according to claim 2, it is characterized in that, the weight percent content that described compatilizer A is MAH is that the weight percent content of graft copolymer, the GMA active function groups of 1～10% ethylene-propylene acid resin and MAH is one or more in the graft copolymer of 1～10% ethylene-propylene acid resin and GMA active function groups.
5. AES resin combination according to claim 4, it is characterized in that, described compatilizer A is one or more in ethylene-methyl acrylate-maleic anhydride, ethylene-propylene acid butyl ester-maleic anhydride, ethylene-propylene acetoacetic ester-maleic anhydride, ethylene-methyl acrylate-glyceryl methacrylate ternary atactic copolymer, the ethylene-propylene acid butyl ester-glycidyl methacrylate ternary atactic copolymer.
6. AES resin combination according to claim 2 is characterized in that, described EPDM master batch be prepare by the following method and:
(1) with 80～90 weight part modified epdms, 10～20 weight part compatilizer A, 0.3～1 weight part oxidation inhibitor is put into homogenizer and is stirred that discharging obtains mixture after 5～30 minutes;
(2) the main charging opening of described mixture from twin screw extruder added, through the twin screw extruder extruding pelletization, the barrel zone temperature of control forcing machine is 150～220 ℃, and screw speed is 100～400rpm, and extruding pelletization obtains described EPDM master batch.
7. AES resin combination according to claim 2 is characterized in that, described SAN masterbatch resin comprises each component of following parts by weight:
80～90 parts of SAN resins,
10～20 parts of compatilizer B,
0.3～1 part in oxidation inhibitor.
8. AES resin combination according to claim 7 is characterized in that, described SAN resin is that weight-average molecular weight is 100,000～250,000 vinyl cyanide and cinnamic graft copolymer; The weight percent content of vinyl cyanide is 28～38% in described vinyl cyanide and the cinnamic graft copolymer.
9. AES resin combination according to claim 7 is characterized in that, one or more in the graft copolymer that described compatilizer B is styrene-acrylonitrile resin and MAH, the graft copolymer of GMA active function groups; Described GMA active function groups can with compatilizer A in GMA active function groups generation chemical reaction.
10. AES resin combination according to claim 9 is characterized in that, described compatilizer B is one or both in styrene-acrylonitrile-maleic anhydride, the styrene-acrylonitrile-glycidyl methacrylate ternary atactic copolymer; The weight percent content of glycidyl methacrylate is 1～10% in the described ternary atactic copolymer.
11. AES resin combination according to claim 7 is characterized in that, described SAN masterbatch resin be prepare by the following method and:
(1) with 80～90 weight part SAN resins, 10～20 weight part compatilizer B, 0.3～1 weight part oxidation inhibitor put into homogenizer and stir that discharging obtains mixture after 5～30 minutes;
(2) the main charging opening of mixture from twin screw extruder added, through the twin screw extruder extruding pelletization, the barrel zone temperature of control forcing machine is 180～230 ℃, and screw speed is 200～600rpm, and extruding pelletization obtains described SAN masterbatch resin.
12. each described AES resin combination according to claim 1～11, it is characterized in that, described initiator is dicumyl peroxide, two (tert-butyl peroxide) diisopropylbenzene(DIPB) or two two or five ［ 2,5-diethyl-2,5-two (tert-butyl peroxide) hexanes ］.
13. each described AES resin combination is characterized in that according to claim 1～11, described additional crosslinker is that fusing point is 20～40 ℃ iso-cyanuric acid triallyl ester.
14. the preparation method of an AES resin combination as claimed in claim 1 is characterized in that, comprises the steps:
(1) 10～50 weight part EPDM master batches, 50～90 weight part SAN masterbatch resins, 0.02～0.2 weight part initiator, 0.5～5 weight part additional crosslinker and 0.3～1 weight part oxidation inhibitor put into homogenizer stir 5～30min after discharging obtain mixture;
(2) the main charging opening of described mixture from twin screw extruder added, through the twin screw extruder extruding pelletization, the barrel zone temperature of control forcing machine is 150～220 ℃, and screw speed is 100～400rpm, and extruding pelletization obtains sample.
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