CN116925515A - High-fluidity high-toughness PC/ABS alloy and preparation method thereof - Google Patents
High-fluidity high-toughness PC/ABS alloy and preparation method thereof Download PDFInfo
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- 229920007019 PC/ABS Polymers 0.000 title claims abstract description 28
- 239000000956 alloy Substances 0.000 title claims abstract description 23
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 19
- 238000002360 preparation method Methods 0.000 title abstract description 12
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 claims abstract description 15
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 12
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 10
- 239000000047 product Substances 0.000 claims abstract description 9
- 239000004609 Impact Modifier Substances 0.000 claims abstract description 8
- 229920005989 resin Polymers 0.000 claims abstract description 8
- 239000011347 resin Substances 0.000 claims abstract description 8
- 238000002156 mixing Methods 0.000 claims abstract description 5
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 30
- 239000002245 particle Substances 0.000 claims description 27
- 239000000178 monomer Substances 0.000 claims description 22
- 239000000203 mixture Substances 0.000 claims description 13
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 8
- 239000002270 dispersing agent Substances 0.000 claims description 8
- 239000003999 initiator Substances 0.000 claims description 8
- 125000000864 peroxy group Chemical group O(O*)* 0.000 claims description 8
- 239000000843 powder Substances 0.000 claims description 8
- 239000004094 surface-active agent Substances 0.000 claims description 8
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 claims description 6
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims description 6
- 239000000725 suspension Substances 0.000 claims description 6
- 239000004342 Benzoyl peroxide Substances 0.000 claims description 5
- 235000019400 benzoyl peroxide Nutrition 0.000 claims description 5
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical group C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 claims description 4
- YNQLUTRBYVCPMQ-UHFFFAOYSA-N Ethylbenzene Chemical compound CCC1=CC=CC=C1 YNQLUTRBYVCPMQ-UHFFFAOYSA-N 0.000 claims description 4
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 claims description 4
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 4
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Natural products CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 4
- 239000012043 crude product Substances 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 4
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 4
- 238000005406 washing Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 239000003607 modifier Substances 0.000 claims description 3
- WFUGQJXVXHBTEM-UHFFFAOYSA-N 2-hydroperoxy-2-(2-hydroperoxybutan-2-ylperoxy)butane Chemical compound CCC(C)(OO)OOC(C)(CC)OO WFUGQJXVXHBTEM-UHFFFAOYSA-N 0.000 claims description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical group C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 2
- 239000007900 aqueous suspension Substances 0.000 claims description 2
- CADZRPOVAQTAME-UHFFFAOYSA-L calcium;hydroxy phosphate Chemical compound [Ca+2].OOP([O-])([O-])=O CADZRPOVAQTAME-UHFFFAOYSA-L 0.000 claims description 2
- 239000011258 core-shell material Substances 0.000 claims description 2
- 239000000839 emulsion Substances 0.000 claims description 2
- 125000005395 methacrylic acid group Chemical group 0.000 claims description 2
- 229920002239 polyacrylonitrile Polymers 0.000 claims description 2
- 239000002994 raw material Substances 0.000 claims description 2
- 239000011734 sodium Substances 0.000 claims description 2
- 229910052708 sodium Inorganic materials 0.000 claims description 2
- 238000010557 suspension polymerization reaction Methods 0.000 claims description 2
- 125000003944 tolyl group Chemical group 0.000 claims description 2
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 claims 1
- 239000004417 polycarbonate Substances 0.000 abstract description 11
- 239000000463 material Substances 0.000 abstract description 10
- 229920000515 polycarbonate Polymers 0.000 abstract description 9
- 239000012745 toughening agent Substances 0.000 abstract description 8
- 238000005452 bending Methods 0.000 abstract description 3
- 239000003292 glue Substances 0.000 abstract description 2
- 238000009776 industrial production Methods 0.000 abstract description 2
- 239000012467 final product Substances 0.000 abstract 1
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 13
- 230000000052 comparative effect Effects 0.000 description 7
- 239000000155 melt Substances 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000012776 electronic material Substances 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000009828 non-uniform distribution Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 150000008301 phosphite esters Chemical class 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- GJBRNHKUVLOCEB-UHFFFAOYSA-N tert-butyl benzenecarboperoxoate Chemical compound CC(C)(C)OOC(=O)C1=CC=CC=C1 GJBRNHKUVLOCEB-UHFFFAOYSA-N 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L69/00—Compositions of polycarbonates; Compositions of derivatives of polycarbonates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/08—Polymer mixtures characterised by other features containing additives to improve the compatibility between two polymers
Abstract
The invention discloses a high-fluidity high-toughness PC/ABS alloy and a preparation method thereof; the alloy comprises the following components: 60-80 parts of PC resin; 20-40 parts of ABS resin; 0.3-0.6 part of antioxidant; 3-6 parts of compatibilized impact modifier. The preparation method comprises the following steps: mixing PC, ABS, compatibilizer anti-impact modifier and antioxidant to obtain premix, and extruding and granulating to obtain the final product. The invention adopts the polycarbonate with large weight average molecular weight, thereby ensuring the tensile strength and the bending strength of the alloy material; the adoption of the toughening agent with high glue content ensures the notch impact strength of the alloy material, and the proper shell structure increases the compatibility of PC/ABS. The preparation method is simple, convenient and feasible, and is easy for industrial production; the product prepared by the method can be widely applied to the fields of materials with high strength and toughness, high flow requirements and the like, and has very wide application prospect and industrial value.
Description
Technical Field
The invention belongs to the technical field of polymer modification, and particularly relates to a high-fluidity high-toughness PC/ABS alloy and a preparation method thereof.
Background
With the development of industries such as automobiles and electronic materials, products are required to be thinned, lightened and production efficiency is improved, and high polymer materials are required to have mechanical properties such as high strength and better processing fluidity. Polycarbonate (PC) is a thermoplastic engineering plastic with excellent physical and mechanical properties, has excellent dimensional stability and wide use temperature range, and has excellent transparency and flame retardance. However, the polycarbonate has the defects of difficult processing and forming due to high rigidity of a molecular chain, high notch sensitivity, high melt viscosity, easy stress cracking of large-sized workpieces, and the like, and limits the application range to a certain extent. Blending with ABS resin and MBS resin by modifying technique. Although the addition of ABS improves the flowability of the composition, the improvement is limited and it is difficult to meet the requirements of thinning for flowability of the material. Although the addition of MBS toughening agents improves notched impact sensitivity, the flowability is reduced more.
The literature or other patents also mention that PC/ABS fluidity is improved by adding various lubricants, but the lubricants are generally lower aliphatic hydrocarbons or low molecular weight silicone oils, and the physical lubrication effect is achieved by doping low-melting-point substances into high polymers, so that the improvement effect is not obvious by adding few low-molecular substances, and the mechanical properties are greatly reduced.
The melt flow rate (MI value) of the domestic common high-end PC/ABS material is generally below 18g/10min (260 ℃ and 5 kg), so that poor flow is easily caused, injection molding production is difficult, and the production defective rate is high. Therefore, there is a need in the art for further improvements in the processing flowability of high strength and toughness PC/ABS.
Disclosure of Invention
The invention aims to solve the technical problem of low processing fluidity of high-strength and high-toughness PC/ABS alloy in the prior art, and provides a high-fluidity high-strength and high-toughness PC/ABS alloy and a preparation method thereof, which can obviously improve the fluidity of the material without sacrificing the mechanical property of the material.
In order to achieve the above purpose, the technical scheme of the invention is realized as follows:
the invention provides a high-fluidity high-toughness PC/ABS alloy, which comprises the following raw materials in parts by weight:
the compatibilization impact resistant modifier is rubber particles grafted with acrylic monomers, and the grafting content of the acrylic monomers is 0.5-1.5wt%.
As an embodiment of the present invention, the weight average molecular weight of the PC resin is 30000 to 60000.
As one embodiment of the present invention, the ABS resin is selected from emulsion ABS or bulk ABS.
As one embodiment of the invention, the antioxidant is selected from a primary antioxidant or a combination of the primary antioxidant and phosphite ester auxiliary antioxidants.
As an embodiment of the present invention, the rubber particle grafted acrylic monomer is prepared by a method comprising the steps of: carrying out high-temperature reaction on rubber particle powder, acrylic monomers, a surfactant, a peroxy initiator, a suspension dispersing agent and water suspension polymerization for 3-6 hours to obtain a crude product; filtering, washing and drying to obtain the product.
As an embodiment of the present invention, the rubber particles are core-shell structured tougheners with butadiene as the core, styrene and acrylonitrile polymers as the shell, or methyl methacrylate and styrene as the shell.
As an embodiment of the present invention, the rubber particles have a particle size of 100 to 400 μm. The particle size is too large, the contact surface area is small, and the reaction efficiency is low; thus selecting 100-400 microns.
As one embodiment of the present invention, the butadiene core content in the rubber particles is 60wt% to 75wt% in order to maintain toughening efficiency.
As an embodiment of the present invention, the acrylic monomer is an acrylic monomer or a methacrylic monomer.
As an embodiment of the present invention, the surfactant is selected from toluene, ethylbenzene, methyl methacrylate, methyl acrylate monomers.
As one embodiment of the invention, the peroxy-based initiator is selected from benzoyl peroxide, t-butyl benzoyl peroxide, methyl ethyl ketone peroxide.
As an embodiment of the present invention, the suspending dispersant is selected from sodium alkylbenzenesulfonate, polyvinyl alcohol, calcium hydroxy phosphate.
As one embodiment of the present invention, the mass ratio of the total amount of the rubber particle powder, the acrylic monomer, the surfactant, the peroxy-based initiator, the suspending dispersant and the water is 1:1-3. The mass ratio of the rubber particle powder, the acrylic monomer, the surfactant, the peroxy initiator and the suspension dispersant is 100:0.5-2.0:0.5-5:0.1-0.5:0.8-3.
The invention also relates to a preparation method of the high-fluidity high-toughness PC/ABS alloy, which comprises the following steps: mixing PC, ABS, compatibilizer anti-impact modifier and antioxidant in a high-speed mixer for 2-10 minutes to obtain premix; and (3) putting the premix into a double-screw extruder, and extruding and granulating to obtain the finished product.
As one embodiment of the present invention, the extrusion process of the twin-screw extruder is as follows: the temperature of the feeding section is 220-250 ℃, the temperature of the plasticizing section is 240-260 ℃, the temperature of the homogenizing section is 240-260 ℃, and the rotating speed of the screw is 300-600rpm.
Compared with the prior art, the invention has the following beneficial effects:
1) The polycarbonate adopted by the invention has large weight average molecular weight, and ensures the tensile strength and the bending strength of the alloy material; the adoption of the toughening agent with high glue content ensures the notch impact strength of the alloy material, and the compatibility of PC/ABS is improved by a proper shell structure;
2) According to the invention, the suspension grafting method is adopted to synthesize the rubber particle grafted acrylic acid, so that the acrylic acid is promoted to be uniformly distributed on the surface of the rubber particle, the problem of nonuniform distribution caused by incompatibility of the acrylic acid and the matrix resin is solved, and on the one hand, the grafted acrylic acid introduces carboxyl functional groups on the surface of the rubber particle, so that weak charge acting force is formed between the surface of the rubber and the polycarbonate matrix resin, and the fluidity is promoted.
3) The preparation method is simple, convenient and feasible, and is easy for industrial production; the product prepared by the method can be widely applied to the fields of materials with high strength and toughness, high flow requirements and the like, and has very wide application prospect and industrial value.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. It should be noted that variations and modifications could be made by those skilled in the art without departing from the inventive concept. These are all within the scope of the present invention.
The preparation method comprises the following steps:
the first step: preparation of compatibilizing and impact modifier M05 (rubber particles grafted with acrylic acid, acrylic acid grafting ratio 0.5 wt%): suspension-polymerizing rubber particle powder KANE ACE M-732 (100 parts), methacrylic acid monomer (0.5 parts), methyl methacrylate (2 parts), benzoyl peroxide (0.3 parts), polyvinyl alcohol (2 parts) and water (300 parts) at high temperature for 3-6 hours to obtain a crude product; filtering, washing and drying to obtain the product.
And a second step of: preparation of compatibilizing and impact modifier M15 (rubber particles grafted with acrylic acid, acrylic acid grafting ratio 1.5 wt%): suspension-polymerizing rubber particle powder KANE ACE M-732 (100 parts), methacrylic acid monomer (1.5 parts), methyl methacrylate (1 part), benzoyl peroxide (0.4 part), polyvinyl alcohol (2 parts) and water (300 parts) at high temperature for 3-6 hours to obtain a crude product; filtering, washing and drying to obtain the product.
And a third step of: PC resin, ABS resin, compatibilization anti-impact modifier M05 (rubber particles grafted with acrylic acid, acrylic acid grafting ratio is 0.5 wt%) and compatibilization anti-impact modifier M15 (rubber particles grafted with acrylic acid, acrylic acid grafting ratio is 1.5 wt%); mixing antioxidant (168/1010) in a high-speed mixer for 2-10 min to obtain premix, placing the premix into a double screw extruder, and extruding and granulating. The extrusion process adopting the homodromous double-screw extruder in the scheme comprises the following steps: the temperature of the feeding section is 220-250 ℃, the temperature of the plasticizing section is 240-260 ℃, the temperature of the homogenizing section is 240-260 ℃, and the rotating speed of the screw is 300-600rpm.
The compositions and proportions of the PC/ABS resin blends of comparative examples 1 to 3 and examples 1 to 4 are shown in Table 1.
Table 1, comparative examples 1 to 3 and examples 1 to 4 in terms of formulation proportions (in parts by weight)
Examples 1 to 4, comparative examples 1 to 3, described above, were carried out with respect to their physical and mechanical properties according to the following criteria: tensile strength: ASTM D638, flexural strength ASTM D790; flexural modulus ASTM D790; notched impact properties: ASTM D256; melt index ASTM D1238, performance test results are shown in table 2:
table 2, flowability and mechanical properties of examples and comparative examples are compared
The results in table 2 show that: comparative example 1 is a blank, and although the melt index is 19.4 and the flowability is also acceptable, the mechanical properties of the composite material are poor, especially the 1/4 notched impact strength. The PC/ABS material is characterized by notch sensitivity and is characterized by relatively poor 1/4 notch impact, so that the 1/4 notch impact is very important for the PC/ABS material. The main reason for the poor overall performance of comparative example 1 is that although PC and ABS materials can macroscopically granulate the riblets, the microscopically dispersed ABS phase is an unstable phase, and the PC/ABS materials are subjected to secondary shearing during injection molding, resulting in poor overall performance.
The results of comparative examples 2-3 show that MBS has compatibilization and toughening effects on PC/ABS after adding the MBS toughening agent, but the melt indexes are 12.5,9.3 respectively, which is a very normal result. The inner core of the toughening agent is of a micro-crosslinking structure, so that the flowability of the toughening agent is reduced after the toughening agent is added, and the flowability is reduced more and more along with the increase of the addition amount of the toughening agent.
The results of examples 1-4 show that after the M05 and M15 rubber grafted acrylic compatibilizing and toughening modifiers are added, the mechanical properties including tensile strength, bending strength and impact strength are all kept very good, and particularly the 1/4 notch impact strength is kept above 450 j/M. The melt indexes are respectively above 20g/10 min. As the amount of M05 added increases, impact properties decrease somewhat, but melt index continues to increase. Comparison of M05 and M15 shows that the acrylic acid grafting rate is a little higher, and the fluidity improvement amplitude is larger.
The foregoing describes specific embodiments of the present invention. It is to be understood that the invention is not limited to the particular embodiments described above, and that various changes and modifications may be made by one skilled in the art within the scope of the claims without affecting the spirit of the invention.
Claims (10)
1. The high-fluidity high-toughness PC/ABS alloy composition is characterized by comprising the following raw materials in parts by weight:
the compatibilization impact resistant modifier is rubber particles grafted with acrylic monomers, and the grafting content of the acrylic monomers is 0.5-1.5wt%.
2. The high flow high strength and toughness PC/ABS alloy composition according to claim 1 wherein the PC resin has a weight average molecular weight of 30000-60000.
3. The high flow high strength and toughness PC/ABS alloy composition according to claim 1 wherein the ABS resin is selected from emulsion ABS or bulk ABS.
4. The high flow high strength and toughness PC/ABS alloy composition according to claim 1 wherein the antioxidant is selected from the group consisting of a primary antioxidant and a phosphite secondary antioxidant.
5. The high flow high strength and toughness PC/ABS alloy composition according to claim 1 wherein the rubber particle grafted acrylic monomer is prepared by a process comprising the steps of: carrying out high-temperature reaction on rubber particle powder, acrylic monomers, a surfactant, a peroxy initiator, a suspension dispersing agent and water suspension polymerization for 3-6 hours to obtain a crude product; filtering, washing and drying to obtain the product.
6. The high flow high strength and toughness PC/ABS alloy composition according to claim 5 wherein the rubber particles are core-shell structured tougheners with butadiene as the core, styrene and acrylonitrile polymer as the shell or methyl methacrylate and styrene as the shell, and the particle size is 100-400 microns, and the content of butadiene core in the rubber particles is 60-75 wt%.
7. The high flow high strength and toughness PC/ABS alloy composition according to claim 5 wherein the acrylic monomer is an acrylic monomer or a methacrylic monomer.
8. The high flow high strength and toughness PC/ABS alloy composition according to claim 5 wherein the surfactant is selected from toluene, ethylbenzene, methyl methacrylate, methyl acrylate monomers; the peroxy initiator is selected from benzoyl peroxide, benzoyl peroxide tert-butyl ester and methyl ethyl ketone peroxide; the suspension dispersant is selected from sodium alkylbenzenesulfonate, polyvinyl alcohol and calcium hydroxy phosphate.
9. The high flow high strength and toughness PC/ABS alloy composition according to claim 5, wherein the mass ratio of the total amount of rubber particle powder, acrylic monomer, surfactant, peroxy initiator, suspending dispersant and water is 1:1-3; the mass ratio of the rubber particle powder, the acrylic monomer, the surfactant, the peroxy initiator and the suspension dispersant is 100:0.5-2.0:0.5-5:0.1-0.5:0.8-3.
10. A method for preparing a high flow high strength and toughness PC/ABS alloy according to any one of claims 1 to 9, said method comprising the steps of: mixing PC, ABS, compatibilizer anti-impact modifier and antioxidant in a high-speed mixer for 2-10 minutes to obtain premix; and (3) putting the premix into a double-screw extruder, and extruding and granulating to obtain the finished product.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310784208.6A CN116925515A (en) | 2023-06-29 | 2023-06-29 | High-fluidity high-toughness PC/ABS alloy and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310784208.6A CN116925515A (en) | 2023-06-29 | 2023-06-29 | High-fluidity high-toughness PC/ABS alloy and preparation method thereof |
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| CN202310784208.6A Pending CN116925515A (en) | 2023-06-29 | 2023-06-29 | High-fluidity high-toughness PC/ABS alloy and preparation method thereof |
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| Country | Link |
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