CN112341781A - High-elongation sprayed PC/PBT alloy material and preparation method thereof - Google Patents
High-elongation sprayed PC/PBT alloy material and preparation method thereof Download PDFInfo
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- 239000000956 alloy Substances 0.000 title claims abstract description 60
- 229920006778 PC/PBT Polymers 0.000 title claims abstract description 54
- 238000002360 preparation method Methods 0.000 title abstract description 13
- 239000011347 resin Substances 0.000 claims abstract description 56
- 229920005989 resin Polymers 0.000 claims abstract description 56
- 239000012745 toughening agent Substances 0.000 claims abstract description 35
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 24
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 24
- 150000002148 esters Chemical group 0.000 claims abstract description 22
- 239000000314 lubricant Substances 0.000 claims abstract description 20
- 239000003112 inhibitor Substances 0.000 claims abstract description 19
- 239000007921 spray Substances 0.000 claims abstract description 14
- 229920000297 Rayon Polymers 0.000 claims abstract description 7
- KUDUQBURMYMBIJ-UHFFFAOYSA-N 2-prop-2-enoyloxyethyl prop-2-enoate Chemical compound C=CC(=O)OCCOC(=O)C=C KUDUQBURMYMBIJ-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229920000058 polyacrylate Polymers 0.000 claims abstract description 4
- 239000004417 polycarbonate Substances 0.000 claims description 41
- 229920001707 polybutylene terephthalate Polymers 0.000 claims description 36
- 238000005507 spraying Methods 0.000 claims description 29
- 238000000034 method Methods 0.000 claims description 14
- 238000002156 mixing Methods 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 9
- -1 polybutylene terephthalate Polymers 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 6
- 238000002844 melting Methods 0.000 claims description 6
- 230000008018 melting Effects 0.000 claims description 6
- 239000004593 Epoxy Substances 0.000 claims description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 4
- 125000000524 functional group Chemical group 0.000 claims description 4
- 229910052710 silicon Inorganic materials 0.000 claims description 4
- 239000010703 silicon Substances 0.000 claims description 4
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 3
- 235000019820 disodium diphosphate Nutrition 0.000 claims description 3
- GYQBBRRVRKFJRG-UHFFFAOYSA-L disodium pyrophosphate Chemical group [Na+].[Na+].OP([O-])(=O)OP(O)([O-])=O GYQBBRRVRKFJRG-UHFFFAOYSA-L 0.000 claims description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 2
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims description 2
- 229920000402 bisphenol A polycarbonate polymer Polymers 0.000 claims description 2
- 239000011258 core-shell material Substances 0.000 claims description 2
- VOZRXNHHFUQHIL-UHFFFAOYSA-N glycidyl methacrylate Chemical compound CC(=C)C(=O)OCC1CO1 VOZRXNHHFUQHIL-UHFFFAOYSA-N 0.000 claims description 2
- 238000005453 pelletization Methods 0.000 claims description 2
- 150000008301 phosphite esters Chemical class 0.000 claims description 2
- 229910045601 alloy Inorganic materials 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 6
- 239000004840 adhesive resin Substances 0.000 abstract description 4
- 229920006223 adhesive resin Polymers 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 abstract description 2
- 125000003700 epoxy group Chemical group 0.000 abstract description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 abstract description 2
- 229920006124 polyolefin elastomer Polymers 0.000 abstract description 2
- 229920001897 terpolymer Polymers 0.000 abstract description 2
- 229920000515 polycarbonate Polymers 0.000 description 37
- 239000003973 paint Substances 0.000 description 12
- 230000000052 comparative effect Effects 0.000 description 6
- 238000001746 injection moulding Methods 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000002861 polymer material Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229920004142 LEXAN™ Polymers 0.000 description 1
- 239000004418 Lexan Substances 0.000 description 1
- TXQVDVNAKHFQPP-UHFFFAOYSA-N [3-hydroxy-2,2-bis(hydroxymethyl)propyl] octadecanoate Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC(CO)(CO)CO TXQVDVNAKHFQPP-UHFFFAOYSA-N 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000002178 crystalline material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000007592 spray painting technique Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000000007 visual effect Effects 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
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
-
- 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
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/53—Core-shell polymer
Abstract
The invention provides a high-elongation sprayed PC/PBT alloy material and a preparation method thereof, wherein the alloy material is prepared from the following components in parts by weight: 50-70 parts of viscose resin and 10-30 parts of branched PC resin in the PC; 25-40 parts of adhesive resin in PBT, 1-5 parts of reactive toughening agent, 1-6 parts of toughening agent, 0.1-0.5 part of ester exchange inhibitor, 0.1-0.5 part of antioxidant and 0.1-0.5 part of lubricant. The high-elongation spray PC/PBT alloy material disclosed by the invention adopts medium-viscosity PC resin, branched PC resin and medium-viscosity PBT resin as main materials, the toughness of the alloy is provided through polyolefin rubber of a terpolymer of reactive flexibilizer ethylene-acrylate, the compatibility of polyacrylate with PC and PBT is improved, the compatibility is improved through the reaction of epoxy groups and PBT end groups (carboxyl or hydroxyl), and the purposes of compatibilization and toughening of the PC/PBT alloy are further realized.
Description
Technical Field
The invention belongs to the technical field of high polymer materials, and particularly relates to a high-elongation spraying PCPBT alloy material and a preparation method thereof.
Background
Polycarbonate (PC) has the advantages of high heat resistance, good transparency, high gloss, good toughness and the like, but has poor fluidity and is difficult to form; the product is sensitive to the notch and is easy to generate stress cracking; is not solvent resistant. Polybutylene terephthalate (PBT) is also a common engineering plastic and has the advantages of high strength, fatigue resistance, small creep, good solvent resistance and the like. The PC/PBT alloy not only keeps the characteristics of chemical resistance, high temperature resistance, easy forming and the like of a crystalline material PBT, but also has the toughness and dimensional stability of an amorphous material PC, so that the PC/PBT alloy is widely used for energy absorption modules of household appliances and automobile accessories.
In order to obtain a good visual effect and meet the requirements of long-term weather resistance, scratch resistance and the like, the automobile exterior product is usually required to be sprayed, the surface of a high polymer material is corroded to a certain extent by spraying, and the elongation at break of the conventional PC/PBT alloy material is obviously reduced after spraying.
Common PC/PBT alloy materials mainly use CL100 based on Saber and KU2 based on Bayer and are influenced by epidemic situations, and the two materials have certain influence on domestic supply and have higher cost.
Disclosure of Invention
In view of the above, the invention aims to overcome the defects in the prior art and provides a high-elongation spraying PC/PBT alloy material and a preparation method thereof.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a high-elongation spraying PC/PBT alloy material is prepared from the following components in parts by weight:
preferably, the alloy material is prepared from the following components in parts by weight:
further, the PC resin is a medium-viscosity bisphenol A polycarbonate.
Further, the branched PC resin has a branching degree of 0.1 to 1.0 mol%.
Further, the PBT resin is medium-viscosity polybutylene terephthalate; the viscosity of the medium-viscosity polybutylene terephthalate is 0.9-1.1.
Further, the reactive toughening agent is an ethylene-acrylate terpolymer containing an epoxy functional group, and the epoxy functional group is Glycidyl Methacrylate (GMA).
Further, the toughening agent is an organic silicon type toughening agent with a core-shell structure, wherein the core is organic silicon/acrylate, and the shell is methyl methacrylate.
Further, the ester exchange inhibitor is disodium dihydrogen pyrophosphate.
Further, the antioxidant is a mixture of a hindered phenol antioxidant and a phosphite ester antioxidant; the lubricant is an ester lubricant.
The preparation method of the high-elongation spraying PC/PBT alloy material comprises the following steps:
(1) mixing the branched PC resin, the PBT resin, the reactive toughening agent, the ester exchange inhibitor, the antioxidant and the lubricant in a high-speed mixer for 2-3 minutes to obtain a premix;
(2) conveying the premix to a discharge hopper of a double-screw extruder, and mixing the premix with the viscose resin in the PC;
(3) and (3) melting, plasticizing and fully dispersing the mixture obtained in the step (2) in a double-screw extruder, extruding through a die of a machine head, drawing, cooling, pelletizing and homogenizing to obtain the high-elongation spraying PC/PBT alloy material.
Further, the process conditions of the twin-screw extruder in the step (3) are as follows: the temperature of the first zone is 140-;
the breaking elongation of the high-elongation sprayed PC/PBT alloy material is more than 30 percent after spraying. Is higher than the conventional PC/PBT alloy material, and can be used in the industries of automobiles and household appliances.
Compared with the prior art, the invention has the following advantages:
the high-elongation spraying PC/PBT alloy material disclosed by the invention adopts medium-viscosity PC resin, branched PC resin and medium-viscosity PBT resin as main materials, the toughness of the alloy is provided by polyolefin rubber of a terpolymer of reactive flexibilizer ethylene-acrylate, the compatibility of polyacrylate with PC and PBT is improved, the compatibility is improved by the reaction of epoxy groups and PBT end groups (carboxyl or hydroxyl), and the purposes of compatibilization and toughening of the PC/PBT alloy are further realized; the ester exchange inhibitor reduces ester exchange reaction in the extrusion and injection molding processes; when a product is injection-molded, the branched PC resin and the PBT resin form a compact PC-PBT copolymer network structure under the introduction condition of the reactive toughening agent, and the network structure improves the ductility of the paint and reduces excessive corrosion of a solvent in the paint to the surface of a base material in the paint spraying process, so that the retention rate of the elongation at break of the PC/PBT alloy material after spraying is improved.
The high-elongation sprayed PC/PBT alloy material disclosed by the invention can reduce the corrosion of paint on PC/PBT alloy products on the premise of ensuring paint performances such as paint adhesion and the like.
Detailed Description
Unless defined otherwise, technical terms used in the following examples have the same meanings as commonly understood by one of ordinary skill in the art to which the present invention belongs. The test reagents used in the following examples, unless otherwise specified, are all conventional biochemical reagents; the experimental methods are conventional methods unless otherwise specified.
The present invention will be described in detail with reference to examples.
The manufacturer of the middle sticky PC resin in the embodiment of the invention is Taiwan light-emitting, and the brand PC A2200;
the manufacturer of the branched PC resin in the embodiment of the invention is Sabic, and is called LEXAN BFL 2000;
the manufacturer of the PBT resin in the embodiment of the invention is Nantong star, and the trademark PBT 1100A;
the manufacturer of the reactive toughener in the embodiment of the invention is Shenyang Ketong plastic science and technology company, and the brand is KT-22;
the manufacturer of the toughening agent in the embodiment of the invention is Japanese Brillouin, brand MR-01;
the manufacturer of the ester exchange inhibitor in the embodiment of the invention is disodium dihydrogen pyrophosphate, and the manufacturer is Mitsui;
the antioxidant in the embodiment of the invention is a mixture of hindered phenol antioxidant and phosphite antioxidant, which is produced and provided by Ciba company;
the lubricant in the embodiment of the invention is pentaerythritol stearate which is produced and provided by LOZA company and is sold as GLYCOLUBE-P.
Example 1
A high-elongation spraying PC/PBT alloy material is prepared from the following components in parts by weight: 40.6 parts of PC resin, 10 parts of branched PC resin, 40 parts of PBT resin, 3 parts of reactive toughening agent, 5 parts of toughening agent, 0.5 part of ester exchange inhibitor, 0.3 part of antioxidant and 0.3 part of lubricant.
The preparation method of the high-elongation spraying PC/PBT alloy material comprises the following steps:
(1) mixing the branched PC resin, the PBT resin, the reactive toughening agent, the ester exchange inhibitor, the antioxidant and the lubricant in a high-speed mixer for 2-3 minutes to obtain a premix;
(2) conveying the premix to a discharge hopper of a double-screw extruder, and mixing the premix with the viscose resin in the PC;
(3) melting, plasticizing and fully dispersing the mixture obtained in the step (2) in a double-screw extruder, extruding through a die of a machine head, drawing, cooling, granulating and homogenizing to obtain the high-elongation spraying PC/PBT alloy material; the process conditions of the twin-screw extruder in the step (3) are as follows: the temperature of the first zone is 140-.
Example 2
A high-elongation spraying PC/PBT alloy material is prepared from the following components in parts by weight: 30.7 parts of PC resin, 20 parts of branched PC resin, 40 parts of PBT resin, 3 parts of reactive toughening agent, 5 parts of toughening agent, 0.5 part of ester exchange inhibitor, 0.3 part of antioxidant and 0.3 part of lubricant.
The preparation method of the high-elongation spray PC/PBT alloy material is the same as that of the embodiment 1.
Example 3
A high-elongation spraying PC/PBT alloy material is prepared from the following components in parts by weight: 35.7 parts of PC resin, 20 parts of branched PC resin, 35 parts of PBT resin, 3 parts of reactive toughening agent, 5 parts of toughening agent, 0.5 part of ester exchange inhibitor, 0.3 part of antioxidant and 0.3 part of lubricant.
The preparation method of the high-elongation spray PC/PBT alloy material is the same as that of the embodiment 1.
Example 4
A high-elongation spraying PC/PBT alloy material is prepared from the following components in parts by weight: 30.7 parts of PC resin, 30 parts of branched PC resin, 30 parts of PBT resin, 3 parts of reactive toughening agent, 5 parts of toughening agent, 0.5 part of ester exchange inhibitor, 0.3 part of antioxidant and 0.3 part of lubricant.
The preparation method of the high-elongation spray PC/PBT alloy material is the same as that of the embodiment 1.
Example 5
A high-elongation spraying PC/PBT alloy material is prepared from the following components in parts by weight: 45.7 parts of PC resin, 20 parts of branched PC resin, 25 parts of PBT resin, 3 parts of reactive toughening agent, 5 parts of toughening agent, 0.5 part of ester exchange inhibitor, 0.3 part of antioxidant and 0.3 part of lubricant. The process steps refer to example 1.
The preparation method of the high-elongation spray PC/PBT alloy material is the same as that of the embodiment 1.
Comparative example 1
The PC/PBT alloy material is prepared from the following components in parts by weight: 55.9 parts of PC (polycarbonate) middle adhesive resin, 35 parts of PBT (polybutylene terephthalate) resin, 3 parts of reactive toughening agent, 5 parts of toughening agent, 0.5 part of ester exchange inhibitor, 0.3 part of antioxidant and 0.3 part of lubricant.
The preparation method of the PC/PBT alloy material comprises the following steps:
(1) mixing PBT resin, a reactive toughening agent, a toughening agent, an ester exchange inhibitor, an antioxidant and a lubricant in a high-speed mixer for 2-3 minutes to obtain a premix;
(2) conveying the premix to a discharge hopper of a double-screw extruder, and mixing the premix with the viscose resin in the PC;
(3) melting, plasticizing and fully dispersing the mixture obtained in the step (2) in a double-screw extruder, extruding through a die of a machine head, drawing, cooling, granulating and homogenizing to obtain the high-elongation spraying PC/PBT alloy material; the process conditions of the twin-screw extruder in the step (3) are as follows: the temperature of the first zone is 140-.
Comparative example 2
The PC/PBT alloy material is prepared from the following components in parts by weight: 58.7 parts of PC (polycarbonate) middle adhesive resin, 35 parts of PBT (polybutylene terephthalate) resin, 5 parts of reactive toughener, 5 parts of toughener, 0.5 part of ester exchange inhibitor, 0.3 part of antioxidant and 0.3 part of lubricant.
The preparation method of the PC/PBT alloy material comprises the following steps:
(1) mixing PBT resin, a reactive toughening agent, a toughening agent, an ester exchange inhibitor, an antioxidant and a lubricant in a high-speed mixer for 2-3 minutes to obtain a premix;
(2) conveying the premix to a discharge hopper of a double-screw extruder, and mixing the premix with the viscose resin in the PC;
(3) melting, plasticizing and fully dispersing the mixture obtained in the step (2) in a double-screw extruder, extruding through a die of a machine head, drawing, cooling, granulating and homogenizing to obtain the high-elongation spraying PC/PBT alloy material; the process conditions of the twin-screw extruder in the step (3) are as follows: the temperature of the first zone is 140-.
Comparative example 3
The PC/PBT alloy material is prepared from the following components in parts by weight: 38.9 parts of PC middle adhesive resin, 20 parts of branched PC resin, 35 parts of PBT resin, 5 parts of toughening agent, 0.5 part of ester exchange inhibitor, 0.3 part of antioxidant and 0.3 part of lubricant.
(1) Mixing the branched PC resin, the PBT resin, the toughening agent, the ester exchange inhibitor, the antioxidant and the lubricant in a high-speed mixer for 2-3 minutes to obtain a premix;
(2) conveying the premix to a discharge hopper of a double-screw extruder, and mixing the premix with the viscose resin in the PC;
(3) melting, plasticizing and fully dispersing the mixture obtained in the step (2) in a double-screw extruder, extruding through a die of a machine head, drawing, cooling, granulating and homogenizing to obtain the high-elongation spraying PC/PBT alloy material; the process conditions of the twin-screw extruder in the step (3) are as follows: the temperature of the first zone is 140-.
Performance evaluation method and performance standard
Drying the products prepared in the examples 1-5 and the comparative examples 1-3 in a forced air oven at 100 ℃ for 4 hours, and then performing injection molding by using a plastic injection molding machine to obtain a standard sample plate with the thickness of 200mm multiplied by 140mm multiplied by 3mm, wherein the injection molding temperature is 260 ℃; spraying paint on the sample plate, selecting standard paint of Wal Ward for the paint, and adopting a three-spraying and one-drying process; cutting the sample plate without paint spraying and the sample plate after paint spraying into sample strips with standard length and width by a sample cutting machine according to the standard size; the specimens were tested for performance after being left at 23 ℃ for at least 24 hours at 50% relative humidity.
The product performance test method comprises the following steps:
tensile strength and elongation at break according to ISO 527, sample bar specification 5A, length 75mm, thickness 3mm, gauge length 20mm, tensile rate 50 mm/min;
the bending strength and the bending modulus are tested according to ISO 178 standard, the length is 80mm, the width is 10mm, the thickness is 3mm, and the bending rate is 2 mm/min;
the Charpy notch impact strength is tested according to the ISO 179 standard, the length is 80mm, the width is 10mm, the thickness is 3mm, and the notch type is A type;
the thermal deformation temperature is tested according to the ISO 75 standard, and the load is 0.45 MPa;
adhesion, tested according to ISO 2409 standard.
The results of the performance tests on each sample are shown in table 1.
Table 1 results of performance testing
Note: the adhesion value is 0-5, the grade 0 is the best, the grade 5 is the worst, and the grade is not acceptable to be more than or equal to 2.
As can be seen from table 2: compared with the comparative example, the PC/PBT alloy material prepared by the invention has a network structure formed by the reaction of the reactive toughening agent, the PBT resin and the macromolecules of the branched PC resin in the extrusion processing process, and the elongation at break after spraying is more than 40 percent and is far higher than that of the comparative example material, so that the prepared PC/PBT alloy material has excellent comprehensive performance.
By combining the data, the higher the PBT content is, the elongation at break is gradually reduced; the PBT content is too low, the solvent resistance is poor, and paint biting phenomenon is easy to occur in spray painting; in the invention, the embodiment 4 has optimal data, and the proportion of PC and PBT reaches balance, which is the core data of the invention.
The high-elongation PC/PBT alloy material prepared by the invention can be applied to the fields of automobiles, household appliances and the like, in particular to energy absorption modules such as air inlet grids of high-grade automobiles and the like.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A high-elongation spraying PC/PBT alloy material is characterized in that: the alloy material is prepared from the following components in parts by weight:
2. the high elongation spray coated PC/PBT alloy material of claim 1, wherein: the PC resin is middle-viscosity bisphenol A polycarbonate.
3. The high elongation spray coated PC/PBT alloy material of claim 1, wherein: the branching degree of the branched PC resin is 0.1-1.0 mol%.
4. The high elongation spray coated PC/PBT alloy material of claim 1, wherein: the PBT resin is medium-viscosity polybutylene terephthalate; the viscosity of the medium-viscosity polybutylene terephthalate is 0.9-1.1.
5. The high elongation spray coated PC/PBT alloy material of claim 1, wherein: the reactive toughening agent is an ethylene-acrylate terpolymer containing an epoxy functional group, and the epoxy functional group is glycidyl methacrylate.
6. The high elongation spray coated PC/PBT alloy material of claim 1, wherein: the toughening agent is an organic silicon type toughening agent with a core-shell structure, wherein the core is organic silicon/acrylate, and the shell is methyl methacrylate.
7. The high elongation spray coated PC/PBT alloy material of claim 1, wherein: the ester exchange inhibitor is disodium dihydrogen pyrophosphate.
8. The high elongation spray coated PC/PBT alloy material of claim 1, wherein: the antioxidant is a mixture of hindered phenol antioxidant and phosphite ester antioxidant; the lubricant is an ester lubricant.
9. The method of preparing a high elongation spray coated PC/PBT alloy material of any of claims 1-8, wherein: the method comprises the following steps:
(1) mixing the branched PC resin, the PBT resin, the reactive toughening agent, the ester exchange inhibitor, the antioxidant and the lubricant in a high-speed mixer for 2-3 minutes to obtain a premix;
(2) conveying the premix to a discharge hopper of a double-screw extruder, and mixing the premix with the viscose resin in the PC;
(3) and (3) melting, plasticizing and fully dispersing the mixture obtained in the step (2) in a double-screw extruder, extruding through a die of a machine head, drawing, cooling, pelletizing and homogenizing to obtain the high-elongation spraying PC/PBT alloy material.
10. The method for preparing the high-elongation spray-coated PC/PBT alloy material according to claim 9, wherein the method comprises the following steps: the process conditions of the twin-screw extruder in the step (3) are as follows: the temperature of the first zone is 140-;
the breaking elongation of the high-elongation sprayed PC/PBT alloy material is more than 30 percent after spraying.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114806124A (en) * | 2022-03-31 | 2022-07-29 | 金发科技股份有限公司 | Weather-resistant PC/polyester alloy material and preparation method and application thereof |
| WO2023020414A1 (en) * | 2021-08-17 | 2023-02-23 | 金发科技股份有限公司 | Green and environmentally-friendly polycarbonate alloy composition, and preparation method therefor and application thereof |
| CN114806124B (en) * | 2022-03-31 | 2024-05-14 | 金发科技股份有限公司 | Weather-resistant PC/polyester alloy material and preparation method and application thereof |
Citations (4)
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| CN105585831A (en) * | 2015-12-28 | 2016-05-18 | 中广核俊尔新材料有限公司 | Polycarbonate/polybutylene terephthalate alloy material as well as preparation method and application thereof |
| CN105820536A (en) * | 2016-04-27 | 2016-08-03 | 天津金发新材料有限公司 | High-fluidity, low-odor and shrinking percentage-adjustable flame-retardant PC/ABS composition |
| CN106674961A (en) * | 2016-12-14 | 2017-05-17 | 上海锦湖日丽塑料有限公司 | PC/PBT (Polycarbonate/Polybutylene Terephthalate) alloy material filled with high paint spraying yield talcum powder and preparation method thereof |
| CN106751683A (en) * | 2016-12-27 | 2017-05-31 | 天津金发新材料有限公司 | A kind of high fluidity, low stress PC/ABS compositions |
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| WO2023020414A1 (en) * | 2021-08-17 | 2023-02-23 | 金发科技股份有限公司 | Green and environmentally-friendly polycarbonate alloy composition, and preparation method therefor and application thereof |
| CN114806124A (en) * | 2022-03-31 | 2022-07-29 | 金发科技股份有限公司 | Weather-resistant PC/polyester alloy material and preparation method and application thereof |
| CN114806124B (en) * | 2022-03-31 | 2024-05-14 | 金发科技股份有限公司 | Weather-resistant PC/polyester alloy material and preparation method and application thereof |
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