CN110903623A - 30% mineral-reinforced electroplated PC/ABS alloy material and preparation method thereof - Google Patents
30% mineral-reinforced electroplated PC/ABS alloy material and preparation method thereof Download PDFInfo
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- C—CHEMISTRY; METALLURGY
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
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- C08J2369/00—Characterised by the use of polycarbonates; Derivatives of polycarbonates
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- C08J2425/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Derivatives of such polymers
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- C08J2435/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical, and containing at least one other carboxyl radical in the molecule, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Derivatives of such polymers
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- C08J2455/00—Characterised by the use of homopolymers or copolymers, obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in groups C08J2423/00 - C08J2453/00
- C08J2455/02—Acrylonitrile-Butadiene-Styrene [ABS] polymers
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- C08K7/00—Use of ingredients characterised by shape
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Abstract
The invention discloses a 30% mineral reinforced electroplated PC/ABS alloy material, which comprises the following components in percentage by weight: PC resin, ABS resin, an internal stress improver, modified mineral fiber, a toughening agent, a compatilizer, a lubricant and an antioxidant. The preparation method comprises the steps of sequentially placing main materials of PC, ABS resin, an internal stress improver and a lubricant into a mixing roll to be mixed for 4-8 minutes to obtain a mixed material; then adding a toughening agent, a compatilizer and an antioxidant into the mixed material, and mixing for 6-10 minutes; and adding the obtained mixed material into a main feeding port of a double-screw extruder, adding modified mineral fibers into a side feeding port, finally extruding in the double-screw extruder, and performing water cooling and granulation. The obtained PC/ABS alloy material has small residual internal stress, excellent physical property, good electroplating property and low preparation cost, and is suitable for industrial production.
Description
Technical Field
The invention relates to the technical field of engineering plastic alloy material preparation, in particular to a 30% mineral reinforced electroplated PC/ABS alloy material and a preparation method thereof.
Background
Polycarbonate (hereinafter referred to as PC) is a high molecular polymer containing a carbonate group in its molecular chain, and has rigidity, high transparency, high toughness, heat resistance, and creep resistance, as well as excellent dimensional stability, but has somewhat poor flow processability. Acrylonitrile-butadiene-styrene copolymer (hereinafter referred to as ABS) is a thermoplastic polymer material structure with high strength, good toughness and easy processing and molding, but the acrylonitrile-butadiene-styrene copolymer has flammability, poor environmental resistance and low thermal deformation temperature, and the application of the acrylonitrile-butadiene-styrene copolymer is limited.
The inherent deficiencies of PC and ABS affect applications within the industry. The PC/ABS alloy material is thermoplastic plastic formed by mixing and processing PC resin and ABS resin according to a certain proportion, combines the excellent performances of the two materials, integrates the moldability of the ABS material and the mechanical property and impact property of the PC, can realize the advantage complementation of the two materials, and can be widely applied to the fields of furniture and household appliances, outdoor products, communication equipment, electronic industry and the like.
The mineral reinforced electroplating PC/ABS has higher performance requirements, and the performance influence is mainly on the compatibility with PC resin and ABS resin and the internal stress control. The PC/ABS alloy material is mainly applied to interior and exterior trimming parts of automobiles, high-end household appliances and electronic and electric products, can ensure sufficient mechanical performance after being electroplated, has better electroplating adaptability, and can not cause the shedding of an electroplating layer due to the residual stress in plastics. Meanwhile, better fusion of the PC resin and the ABS resin is also a difficult problem, and the use of various compatilizers can ensure that the PC resin and the ABS resin are better fused, cannot be synergistically improved with mechanical properties, and even part of physical properties are reduced. Therefore, it is important to ensure that the two main materials are better fused with resin, reduce the internal stress of the plastic and simultaneously consider the physical properties to be kept in a reasonable range.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: overcomes the technical defects and provides a 30 percent mineral reinforced electroplated PC/ABS alloy material.
The technical scheme adopted by the invention is as follows: a30% mineral reinforced electroplating PC/ABS alloy material is characterized in that: the PC/ABS alloy material comprises the following components in percentage by weight: 40-60% of PC resin, 10-20% of ABS resin, 2-5% of internal stress improver, 28-32% of modified mineral fiber, 2-6% of toughener, 2-5% of compatilizer, 3-5% of lubricant and 2-4% of antioxidant.
Wherein the melt index (300 ℃, 1.2kg) of the PC resin is 12-42 g/10min, and the melt index (300 ℃, 1.2kg) of the ABS resin is 10-20 g/10 min.
Preferably, the 30% mineral reinforced electroplating PC/ABS alloy material is characterized in that: the internal stress improver is PE or PS.
Preferably, the 30% mineral reinforced electroplating PC/ABS alloy material is characterized in that: the modified mineral fiber is one or more of surface modified talcum powder, calcium carbonate or calcium sulfate.
Preferably, the 30% mineral reinforced electroplating PC/ABS alloy material is characterized in that: the toughening agent is EMA.
Preferably, the 30% mineral reinforced electroplating PC/ABS alloy material is characterized in that: the compatilizer is SMA-700.
Preferably, the 30% mineral reinforced electroplating PC/ABS alloy material is characterized in that: the lubricant is paraffin oil.
Preferably, the 30% mineral reinforced electroplating PC/ABS alloy material is characterized in that: the antioxidant is one or more of 1010, 1098 and 1076.
The invention also aims to provide a high-cost-performance 30% mineral-reinforced electroplated PC/ABS alloy material production method, which comprises the following steps:
(1) sequentially placing the main materials of PC resin and ABS resin, the internal stress improver and the lubricant in a mixing roll according to the required mass fraction, and mixing for 4-8 minutes to obtain a mixed material;
(2) sequentially adding a toughening agent, a compatilizer and an antioxidant into the mixed material obtained in the step (1) and continuously mixing for 6-10 minutes;
(3) adding the mixed material obtained in the step (2) into a main feeding port of a co-rotating double-screw extruder, adding modified mineral fibers into a side feeding port, finally extruding in the double-screw extruder, and carrying out water cooling and granulation.
Preferably, the co-rotating twin-screw extruder is divided into 9 sections, and the set temperatures are respectively as follows: 180-190 ℃ in the 1 st section, 190-200 ℃ in the 2 nd section, 220-230 ℃ in the 3 rd section, 225-235 ℃ in the 4 th section, 230-240 ℃ in the 5 th section, 230-240 ℃ in the 6 th section, 240 ℃ in the 7 th section, 230-.
After the technical scheme is adopted, compared with the prior art, the 30% mineral reinforced electroplated PC/ABS alloy material with high cost performance has the following advantages: firstly, the obtained PC/ABS alloy material for the automobile has small residual internal stress, excellent physical properties and good electroplating performance; secondly, the raw materials are easy to obtain, the cost is greatly reduced, and the method is suitable for large-scale production; the alloy material is subjected to electroplating treatment after injection molding and is used for automobile outer door handles.
Detailed Description
The present invention will be further described with reference to the following embodiments.
Example 1: a30% mineral reinforced electroplating PC/ABS alloy material comprises the following components in percentage by weight: 45% of PC resin, 12% of ABS resin, 3% of internal stress improver PS, 30% of modified mineral fiber surface modified calcium carbonate, 2% of flexibilizer EMA, 3% of compatilizer SMA-700, 3% of lubricant paraffin oil and 2% of antioxidant 1098 and 1076 (the compounding ratio is 1: 1). Wherein the melt index (300 ℃ C., 1.2kg) of the PC resin was 20g/10min, and the melt index (300 ℃ C., 1.2kg) of the ABS resin was 10g/10 min.
Sequentially placing the main materials of PC resin and ABS resin, the internal stress improver and the lubricant in the formula into a mixing roll according to the required mass fraction, and mixing for 5 minutes to obtain a mixed material; then, sequentially adding EMA, SMA-70, 1098 and 1076 (the compound ratio is 1:1) into the mixture obtained previously, and continuously mixing for 6 minutes; and adding the obtained mixed material into a main feeding port of a co-rotating double-screw extruder, and adding modified mineral fibers into a side feeding port. The co-rotating twin-screw extruder is divided into 9 sections, and the set temperatures are respectively as follows: 190 ℃ in the 1 st section, 195 ℃ in the 2 nd section, 220 ℃ in the 3 rd section, 230 ℃ in the 4 th section, 235 ℃ in the 5 th section, 2305 ℃ in the 6 th section, 2405 ℃ in the 7 th section, 240 ℃ in the 8 th section and 240 ℃ in the 9 th section, wherein the 235 ℃ in the machine head section, the main feeding rotating speed of the co-rotating double-screw extruder is 20HZ, the side feeding rotating speed is 8HZ, the exhaust vacuum degree is less than 0.05MPA, and the rotating speed of the main machine is 400 RPM. Finally extruding in a double-screw extruder, cooling by water and granulating. And taking the material, manufacturing a sample strip according to a performance detection test method, and testing the performance.
Example 2: a30% mineral reinforced electroplating PC/ABS alloy material comprises the following components in percentage by weight: 40% of PC resin, 15% of ABS resin, 2% of an internal stress improver PS, 32% of modified mineral fiber surface-modified calcium carbonate, 2% of a flexibilizer EMA, 3% of a compatilizer SMA-700, 3% of a lubricant paraffin oil and 3% of an antioxidant 1098. Wherein the melt index (300 ℃ C., 1.2kg) of the PC resin was 40g/10min, and the melt index (300 ℃ C., 1.2kg) of the ABS resin was 10g/10 min.
Sequentially placing the main materials of PC resin and ABS resin, the internal stress improver and the lubricant in the formula in a mixing roll according to the required mass fraction, and mixing for 6 minutes to obtain a mixed material; then, sequentially adding EMA, SMA-70, 1098 and 1076 (the compound ratio is 1:1) into the obtained mixture, and continuously mixing for 10 minutes; and adding the obtained mixed material into a main feeding port of a co-rotating double-screw extruder, and adding modified mineral fibers into a side feeding port. The co-rotating twin-screw extruder is divided into 9 sections, and the set temperatures are respectively as follows: 190 ℃ in the 1 st section, 195 ℃ in the 2 nd section, 220 ℃ in the 3 rd section, 230 ℃ in the 4 th section, 235 ℃ in the 5 th section, 2305 ℃ in the 6 th section, 2405 ℃ in the 7 th section, 240 ℃ in the 8 th section and 240 ℃ in the 9 th section, wherein the 235 ℃ in the machine head section, the main feeding rotating speed of the co-rotating double-screw extruder is 20HZ, the side feeding rotating speed is 8HZ, the exhaust vacuum degree is less than 0.05MPA, and the rotating speed of the main machine is 400 RPM. Finally extruding in a double-screw extruder, cooling by water and granulating. And (4) taking a proper amount of the obtained master batch, manufacturing a sample strip according to a test method of a detection standard, and testing the performance.
Example 3: a30% mineral reinforced electroplating PC/ABS alloy material comprises the following components in percentage by weight: 43 percent of PC resin, 14 percent of ABS resin, 3 percent of internal stress improver PS, 30 percent of modified mineral fiber surface modified calcium carbonate, 2 percent of flexibilizer EMA, 3 percent of compatilizer SMA-700, 3 percent of lubricant paraffin oil and 2 percent of antioxidant 1098 and 1010 (the compound ratio is 1: 1). Wherein the melt index (300 ℃ C., 1.2kg) of the PC resin was 20g/10min, and the melt index (300 ℃ C., 1.2kg) of the ABS resin was 10g/10 min.
Sequentially placing the main materials of PC resin and ABS resin, the internal stress improver and the lubricant in the formula into a mixing roll according to the required mass fraction, and mixing for 5 minutes to obtain a mixed material; then, sequentially adding EMA, SMA-70, 1098 and 1010 (the compound ratio is 1:1) into the obtained mixture, and continuously mixing for 6 minutes; and adding the obtained mixed material into a main feeding port of a co-rotating double-screw extruder, and adding modified mineral fibers into a side feeding port. The co-rotating twin-screw extruder is divided into 9 sections, and the set temperatures are respectively as follows: 190 ℃ in the 1 st section, 195 ℃ in the 2 nd section, 220 ℃ in the 3 rd section, 230 ℃ in the 4 th section, 235 ℃ in the 5 th section, 2305 ℃ in the 6 th section, 2405 ℃ in the 7 th section, 240 ℃ in the 8 th section and 240 ℃ in the 9 th section, wherein the 235 ℃ in the machine head section, the main feeding rotating speed of the co-rotating double-screw extruder is 20HZ, the side feeding rotating speed is 8HZ, the exhaust vacuum degree is less than 0.05MPA, and the rotating speed of the main machine is 400 RPM. Finally extruding in a double-screw extruder, cooling by water and granulating. And (4) taking a proper amount of the obtained master batch, manufacturing a sample strip according to a test method of a detection standard, and testing the performance.
Example 4: a30% mineral reinforced electroplating PC/ABS alloy material comprises the following components in percentage by weight: 46 percent of PC resin, 13 percent of ABS resin, 2 percent of internal stress improver PE, 29 percent of modified mineral fiber surface modified calcium carbonate, 2 percent of flexibilizer EMA, 3 percent of compatilizer SMA-700, 3 percent of lubricant paraffin oil and 2 percent of antioxidant 1098 and 1076 (the compound ratio is 1: 1). Wherein the melt index (300 ℃ C., 1.2kg) of the PC resin was 30g/10min, and the melt index (300 ℃ C., 1.2kg) of the ABS resin was 12g/10 min.
Sequentially placing the main materials of PC resin and ABS resin, the internal stress improver and the lubricant in the formula into a mixing roll according to the required mass fraction, and mixing for 5 minutes to obtain a mixed material; then, sequentially adding EMA, SMA-70, 1098 and 1010 (the compound ratio is 1:1) into the obtained mixture, and continuously mixing for 7 minutes; and adding the obtained mixed material into a main feeding port of a co-rotating double-screw extruder, and adding modified mineral fibers into a side feeding port. The co-rotating twin-screw extruder is divided into 9 sections, and the set temperatures are respectively as follows: 185 ℃ at the 1 st section, 200 ℃ at the 2 nd section, 220 ℃ at the 3 rd section, 230 ℃ at the 4 th section, 230 ℃ at the 5 th section, 230 ℃ at the 6 th section, 235 ℃ at the 7 th section, 240 ℃ at the 8 th section and 235 ℃ at the 9 th section, wherein the machine head section is 240 ℃, the main feeding rotating speed of the co-rotating double-screw extruder is 20HZ, the side feeding rotating speed is 7HZ, the exhaust vacuum degree is less than 0.05MPA, and the main machine rotating speed is 400 RPM. Finally extruding in a double-screw extruder, cooling by water and granulating. And (4) taking a proper amount of the obtained master batch, manufacturing a sample strip according to a test method of a detection standard, and testing the performance.
Table 1: summary of test results in examples
As can be seen from Table 1, the same related formula components of the invention are adopted in the examples 1, 2, 3 and 4, the tensile strength, the flexural modulus, the heat distortion temperature and other properties are excellent, the mechanical requirements of the automobile outer door handle can be met, and the wear resistance and the scratch resistance can meet the strict requirements of automobile parts.
The foregoing has described preferred embodiments of the present invention and is not to be construed as limiting the claims. The invention is not limited to the above examples, and the formulation components and preparation method thereof are allowed to vary, and all variations within the scope of the independent claims are within the scope of the present invention.
Claims (9)
1. A30% mineral reinforced electroplating PC/ABS alloy material is characterized in that: the PC/ABS alloy material comprises the following components in percentage by weight: 40-60% of PC resin, 10-20% of ABS resin, 2-5% of internal stress improver, 28-32% of modified mineral fiber, 2-6% of toughener, 2-5% of compatilizer, 3-5% of lubricant and 2-4% of antioxidant.
Wherein the melt index (300 ℃, 1.2kg) of the PC resin is 12-42 g/10min, and the melt index (300 ℃, 1.2kg) of the ABS resin is 10-20 g/10 min.
2. The 30% mineral-reinforced electroplated PC/ABS alloy material of claim 1, wherein: the internal stress improver is PE or PS.
3. The 30% mineral-reinforced electroplated PC/ABS alloy material of claim 1, wherein: the modified mineral fiber is one or more of surface modified talcum powder, calcium carbonate or calcium sulfate.
4. The 30% mineral-reinforced electroplated PC/ABS alloy material of claim 1, wherein: the toughening agent is EMA.
5. The 30% mineral-reinforced electroplated PC/ABS alloy material of claim 1, wherein: the compatilizer is SMA-700.
6. The 30% mineral-reinforced electroplated PC/ABS alloy material of claim 1, wherein: the lubricant is paraffin oil.
7. The 30% mineral-reinforced electroplated PC/ABS alloy material of claim 1, wherein: the antioxidant is one or more of 1010, 1098 and 1076.
8. A method for preparing the 30% mineral-reinforced electroplated PC/ABS alloy material according to any one of claims 1 to 7, wherein the method comprises the following steps:
(1) sequentially placing the main materials of PC resin and ABS resin, the internal stress improver and the lubricant in a mixing roll according to the required mass fraction, and mixing for 4-8 minutes to obtain a mixed material;
(2) sequentially adding a toughening agent, a compatilizer and an antioxidant into the mixed material obtained in the step (1) and continuously mixing for 6-10 minutes;
(3) adding the mixed material obtained in the step (2) into a main feeding port of a co-rotating double-screw extruder, adding modified mineral fibers into a side feeding port, finally extruding in the double-screw extruder, and carrying out water cooling and granulation.
9. The process according to claim 8, wherein the co-rotating twin-screw extruder is divided into 9 sections, and the set temperatures are respectively: 180-190 ℃ in the 1 st section, 190-200 ℃ in the 2 nd section, 220-230 ℃ in the 3 rd section, 225-235 ℃ in the 4 th section, 230-240 ℃ in the 5 th section, 230-240 ℃ in the 6 th section, 240 ℃ in the 7 th section, 230-.
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| CN115011095A (en) * | 2022-05-20 | 2022-09-06 | 南京金杉汽车工程塑料有限责任公司 | Preparation method of high-heat-resistance PC/ABS alloy |
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| CN115011095A (en) * | 2022-05-20 | 2022-09-06 | 南京金杉汽车工程塑料有限责任公司 | Preparation method of high-heat-resistance PC/ABS alloy |
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