CN114163797A - Yellow polycarbonate/styrene resin alloy composition and preparation method and application thereof - Google Patents
Yellow polycarbonate/styrene resin alloy composition and preparation method and application thereof Download PDFInfo
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- CN114163797A CN114163797A CN202111210866.1A CN202111210866A CN114163797A CN 114163797 A CN114163797 A CN 114163797A CN 202111210866 A CN202111210866 A CN 202111210866A CN 114163797 A CN114163797 A CN 114163797A
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- 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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
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- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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Abstract
The invention provides a yellow polycarbonate/styrene resin alloy composition, and a preparation method and application thereof. The yellow polycarbonate/styrene resin alloy composition comprises polycarbonate resin, styrene resin, an antioxidant, a light stabilizer and yellow toner; the yellow toner comprises bismuth vanadate and azoyellow; the mass ratio of the bismuth vanadate to the azoyellow is 3.8-4.2: 1. the yellow polycarbonate/styrene resin alloy composition is compounded by adopting bismuth vanadate and azoyellow in a certain ratio to obtain yellow toner with the same coloring capacity as the quinophthalone yellow, and the prepared plastic product has strong heat resistance and weather resistance.
Description
Technical Field
The invention relates to the field of engineering plastics, and in particular relates to a yellow polycarbonate/styrene resin alloy composition as well as a preparation method and application thereof.
Background
The polycarbonate/styrene resin alloy is a high-performance alloy material, integrates the advantages of resin of each component, is widely applied to industries such as automobile industry, electronic and electric appliance industry, light industry and household appliances, electric tools and the like due to excellent comprehensive performance, and belongs to engineering plastics with wide application. However, with the development of society, not only the material properties but also the appearance such as color are required. The plastic products can be more beautiful by endowing the materials with different colors, and different purposes of the plastic products can be distinguished by different colors. Yellow is widely cited as a relatively striking color in plastic articles.
In order to obtain yellow polycarbonate or polycarbonate/styrene resin alloy materials, the quinophthalone yellow is generally adopted as a yellow toner, for example, in the prior art (CN109810410A), although the quinophthalone yellow has high yellow phase tinting strength, the quinophthalone yellow has unstable structure and poor heat resistance and weather resistance, and a chromophoric group is easy to change to cause color change; aiming at the poor heat resistance, in order to reduce the influence of high temperature on the quinophthalone yellow in production, the existing method reduces the extrusion temperature in preparation as much as possible and reduces the rotating speed of a screw, but the preparation process is close to the limit in the way, so that the production is inconvenient; aiming at poor weather resistance, the method cannot be overcome at present, even if a light stabilizer or a weather resisting agent is added into a polycarbonate/styrene resin alloy material, the weather resistance of quinophthalone yellow is not obviously improved, the yellow polycarbonate/styrene resin alloy cannot be well used for plastic products needing to be in an outdoor environment for a long time, and the application of the yellow polycarbonate/styrene resin alloy material is limited. In view of the above, the prior art discloses that other yellow phase pigments with better heat resistance and weather resistance are tried, but the tinting strength is poorer and is far lower than that of quinophthalone yellow.
Disclosure of Invention
The invention provides a yellow polycarbonate/styrene resin alloy composition for overcoming the defect of poor heat resistance and weather resistance of the yellow polycarbonate/styrene resin alloy material in the prior art, and the yellow polycarbonate/styrene resin alloy composition has better yellow tinting strength, heat resistance and weather resistance.
Another object of the present invention is to provide a method for preparing the yellow polycarbonate/styrene-based resin alloy composition.
Another object of the present invention is to provide the use of the yellow polycarbonate/styrene-based resin alloy composition.
It is another object of the present invention to provide a polycarbonate article.
In order to solve the technical problems, the invention adopts the technical scheme that:
a yellow polycarbonate/styrene resin alloy composition comprises the following components in parts by weight:
the yellow toner comprises bismuth vanadate and azoyellow; the mass ratio of the bismuth vanadate to the azoyellow is 3.8-4.2: 1.
according to research, the yellow polycarbonate/styrene resin alloy composition prepared by compounding bismuth vanadate and azoyellow with specific proportion and particle size in the polycarbonate/styrene resin alloy is used as a yellow toner of the polycarbonate resin, and has good yellow tinting strength, heat resistance and weather resistance. The mass ratio of bismuth vanadate to azoyellow is too high or too low, which is not favorable for tinting strength, heat resistance and weather resistance. Under the same addition amount, if the bismuth vanadate is singly used as yellow toner, the yellow tinting strength is poorer and is far lower than that of quinophthalone yellow; when azo yellow alone is used as the yellow toner, the color shift value a is large (i.e., more reddish).
Preferably, the yellow polycarbonate/styrene resin alloy composition comprises the following components in parts by weight:
preferably, the yellow toner of the present invention includes bismuth vanadate and azoyellow; the mass ratio of the bismuth vanadate to the azoyellow is 4: 1.
the particle sizes of bismuth vanadate and azoyellow have great influence on the coloring power, heat resistance and weather resistance. In the range of bismuth vanadate and azoyellow according to the present invention, as the mesh number of bismuth vanadate and azoyellow increases, the coloring power, heat resistance and weather resistance of the yellow toner increase, but after increasing to a certain extent, the overall coloring power, heat resistance and weather resistance decrease rather due to the difficulty in dispersion.
Preferably, the particle size of the bismuth vanadate is 300-600 meshes, and the particle size of the azoyellow is 300-600 meshes. More preferably, the particle size of the bismuth vanadate is 400-500 meshes, and the particle size of the azoyellow is 400-500 meshes.
Polycarbonate resins and styrene resins which are conventional in the art can be used in the present invention.
The polycarbonate resin is one or more of aromatic polycarbonate, aliphatic polycarbonate, branched polycarbonate, aromatic-aliphatic polycarbonate or siloxane copolycarbonate.
The production method of the polycarbonate resin (for example, aromatic polycarbonate) is not particularly limited, and can be produced by an interfacial polymerization method (phosgene method) or an ester exchange method (melt method).
The polycarbonate resin is medium-viscosity PC, and the viscosity is 8-11 Pa.s.
The viscosity of the invention is measured according to GB/T1632.5-2008.
The styrene resin is one or more of acrylonitrile-butadiene-styrene resin, acrylonitrile-acrylate-styrene resin and acrylonitrile-ethylene propylene diene monomer-styrene resin.
The antioxidant is hindered phenol antioxidant and/or phosphite antioxidant.
The light stabilizer is a benzotriazole UV absorbent.
The yellow polycarbonate/styrene resin alloy composition of the invention can be added with other auxiliary agents, and the other auxiliary agents conventional in the art can be used in the invention, including but not limited to lubricants, compatilizers and flame retardants. In the yellow polycarbonate/styrene resin alloy composition, the assistant is 0-1.5 parts by weight.
The lubricant is one or more of ester lubricant or polyethylene lubricant.
The compatilizer is a maleic anhydride compatilizer.
The flame retardant is one or more of antimony white flame retardants or antimonate.
The invention also provides a preparation method of the yellow polycarbonate/styrene resin alloy composition, which comprises the following steps: uniformly mixing all the components according to a ratio, adding the mixture into an extruder, and performing melt blending, extrusion and granulation to obtain the product; wherein the melting temperature is 220-250 ℃.
The application of the yellow polycarbonate/styrene resin alloy composition in the preparation of plastic products is also within the protection scope of the invention. More specifically, the yellow polycarbonate/styrene resin alloy composition is applied to preparing plastic products for outdoor use. The outdoor plastic products include but are not limited to camp beds and tents.
The invention also protects a polycarbonate product which is prepared from the yellow polycarbonate/styrene resin alloy composition.
Compared with the prior art, the invention has the beneficial effects that:
according to the yellow polycarbonate/styrene resin alloy composition, bismuth vanadate and azo yellow with specific proportion and particle size are compounded, so that a yellow toner with the same coloring capability as that of quinophthalone yellow can be obtained on the premise of the same dosage, and a plastic product prepared from the yellow toner has good heat resistance and weather resistance.
Detailed Description
The present invention will be further described with reference to the following embodiments. The starting materials in the examples and comparative examples are either commercially available or can be prepared by known methods. In the present specification, "part" and "%" represent "part by weight" and "% by mass", respectively, unless otherwise specified.
The manufacturers and designations of the raw materials used in the following examples and comparative examples are as follows:
1. polycarbonate resin: aromatic polycarbonate with the viscosity of 9Pa.s and the Japanese sheen, the brand PC FN2200, which is prepared by a phosgene method;
2. styrene resin: acrylonitrile-butyl acrylate-styrene resin, shanghai high bridge petrochemical company, designation ABS 8434;
3. yellow toner:
bismuth vanadate 1: the particle size is 500 meshes, Germany Haibo;
bismuth vanadate 2: the particle size is 300 meshes, Germany Haibo;
bismuth vanadate 3: the particle size is 400 meshes, Germany Haibo;
bismuth vanadate 4: the particle size is 1000 meshes, Germany Haibo;
bismuth vanadate 5: the particle size is 100 meshes, Germany Haibo;
azo yellow 1: particle size 500 mesh, Craine;
azo yellow 2: particle size of 600 mesh, Craine;
azo yellow 3: particle size 400 mesh, Craine;
azo yellow 4: particle size of 1000 mesh, Kelain;
azo yellow 5: particle size of 100 mesh, Craine;
quinophthalone yellow: m101, asian nation;
4. antioxidant: a mixture of hindered phenol antioxidants and phosphite antioxidants, SONOX 1076, Ciba;
5. light stabilizer: benzotriazole-based UV absorbers, Tinuvin 328, Ciba corporation;
6. lubricant: pentaerythritol stearate, Glycolube-P, LOZA corporation.
Examples and comparative examples
The contents (in parts by weight) of the components in the yellow polycarbonate/styrene resin alloy compositions of the examples and comparative examples are shown in tables 1 to 3.
The preparation method comprises the following steps: the dried polycarbonate resin, styrene resin, compatilizer, antioxidant, light stabilizer, yellow toner and other components are mixed according to a proportion and then added into a main barrel of a double-screw extruder (the diameter of a screw is 35mm, and the length-diameter ratio L/D is 48). Controlling the temperature of each section of the main machine cylinder (from a feed inlet to a machine head outlet) to be 220 ℃, 235 ℃, 245 ℃, 250 ℃ and 245 ℃, and controlling the rotating speed of the double screw to be 300 revolutions per minute, cooling the extruded strips by a water tank, and then cutting the extruded strips into particles to obtain the yellow polycarbonate/styrene resin alloy composition.
TABLE 1
TABLE 2
TABLE 3
Performance testing
The yellow polycarbonate/styrene resin alloy compositions prepared in the above examples and comparative examples were tested for coloring ability, heat resistance, heat retention resistance and weather resistance, and the specific test methods and conditions were as follows:
1. coloring power: the b value of the yellow polycarbonate/styrene resin alloy composition was measured by an X-rite7000A colorimeter under the same amount of the toner, and the larger the b value, the stronger the coloring power. With respect to the coloring power of the yellow toner, when the same amount of different toners is used, a higher (larger) value of b indicates a stronger coloring power of the yellow polycarbonate/styrene-based resin alloy composition compared with the yellow phase (i.e., b value) of the yellow polycarbonate/styrene-based resin alloy composition.
2. Color shift case: under the condition of the same amount of the toner, the color deviation value a of the yellow polycarbonate/styrene resin alloy composition is measured by an X-rite7000A colorimeter, the larger the color deviation value a is, the more reddish is shown, the color deviation value a is 0-1, and the yellow color phase is considered to be relatively pure.
3. Heat resistance: the obtained yellow polycarbonate/styrene resin alloy composition was dried in a forced air oven at 80 ℃ for 4 hours, and then injection-molded into a smooth color plate having a surface of 83mm 54mm 2mm and no skin mark by an injection-molding machine under conditions of a dwell time of 30 seconds at 280 ℃ and a dwell time of 30 seconds at 260 ℃. Measuring data (L, a, b) of the injection-molded color plate under a D65 light source by using an X-rite7000A colorimeter, comparing the injection-molded color plate staying at 280 ℃ for 30 seconds with the injection-molded color plate staying at 260 ℃ for 30 seconds, and calculating the difference according to the formula
The smaller the Δ E, the better the heat resistance, wherein Δ E less than 2 is good and Δ E less than 1.5 is excellent.
4. Heat retention resistance: drying the obtained yellow polycarbonate/styrene resin alloy composition in a forced air oven at 80 ℃ for 4 hours, and then performing injection molding by using an injection molding machine to obtain a smooth color plate with the size of 83mm 54mm 2mm and no skin marks on the surface, wherein the injection molding conditions are respectively that the yellow polycarbonate/styrene resin alloy composition stays at 280 ℃ for 120 secondsMeasuring data (L, a, b) of the injection-molded color plate under a D65 light source by using an X-rite7000A colorimeter and staying at 260 ℃ for 30 seconds, comparing the injection-molded color plate staying at 280 ℃ for 120 seconds with the injection-molded color plate staying at 260 ℃ for 30 seconds, and comparing the data according to the formula
The smaller the Δ E, the better the heat retention resistance, wherein Δ E less than 2 is good and Δ E less than 1.5 is excellent.
5. Weather resistance: the obtained yellow polycarbonate/styrene resin alloy composition was dried in a forced air oven at 80 ℃ for 4 hours, and then injection-molded into an injection-molded color plate having a size of 83mm × 54mm × 2mm and a smooth surface without skin marks by an injection-molding machine under the injection-molding condition of a retention time of 5 seconds at 240 ℃. The test was carried out in a UVA-340 test box as specified in GB/T16422.3 cycle 1. Drying for 8 hr and condensing for 1 hr, performing 6 cycles for 72 hr, measuring data (L, a, b) of the injection-molded color plate under D65 light source with X-rite7000A color difference meter before and after placing the injection-molded color plate in the test box, comparing color difference before and after comparison, and calculating according to formula
Δ E is calculated, and as Δ E, smaller Δ E means smaller color difference and better weather resistance, wherein Δ E less than 2 is good and Δ E less than 1.5 is excellent.
The measurement results of each example and comparative example are shown in table 4.
TABLE 4
As can be seen from the comparison between examples 1-4 and comparative examples 1-4, under the condition of the same amount of toner, the yellow coloring ability of the yellow polycarbonate/styrene resin alloy composition using the combination of bismuth vanadate and azoyellow as the yellow toner is similar to that of the yellow polycarbonate/styrene resin alloy composition using quinophthalone yellow as the yellow toner, and even better, the combination of bismuth vanadate and azoyellow is capable of effectively replacing quinophthalone yellow. And from the above test results, it can be seen that the samples obtained from the yellow polycarbonate/styrene-based resin alloy compositions of all examples have good heat resistance, heat retention resistance and weather resistance.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included.
Claims (10)
1. A yellow polycarbonate/styrene resin alloy composition is characterized by comprising the following components in parts by weight:
the yellow toner comprises bismuth vanadate and azoyellow; the mass ratio of the bismuth vanadate to the azoyellow is 3.8-4.2: 1.
2. the yellow polycarbonate/styrenic resin alloy composition of claim 1, comprising the following components in parts by weight:
3. the yellow polycarbonate/styrene-based resin alloy composition according to claim 1 or 2, wherein the bismuth vanadate has a particle size of 300 to 600 mesh, and the azo yellow has a particle size of 300 to 600 mesh.
4. The yellow polycarbonate/styrene-based resin alloy composition as claimed in claim 1, wherein the styrene-based resin is one or more of acrylonitrile-butadiene-styrene resin, acrylonitrile-acrylate-styrene resin, and acrylonitrile-ethylene propylene diene monomer-styrene resin.
5. The yellow polycarbonate/styrenic resin alloy composition of claim 1, wherein the antioxidant is a hindered phenolic antioxidant and/or a phosphite antioxidant.
6. The yellow polycarbonate/styrenic resin alloy composition of claim 1, wherein said light stabilizer is a benzotriazole-based UV absorber.
7. The yellow polycarbonate/styrene resin alloy composition of claim 1, further comprising an auxiliary agent, wherein the auxiliary agent is one or more of a lubricant, a compatilizer and a flame retardant.
8. The method for preparing the yellow polycarbonate/styrene-based resin alloy composition according to any one of claims 1 to 7, comprising the steps of: all the components are uniformly mixed according to the proportion, added into an extruder, and subjected to melt blending, extrusion and granulation.
9. Use of the yellow polycarbonate/styrene-based resin alloy composition according to any one of claims 1 to 7 for producing outdoor plastic articles.
10. A polycarbonate article comprising the yellow polycarbonate/styrene-based resin alloy composition according to any one of claims 1 to 7.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114031921A (en) * | 2021-11-29 | 2022-02-11 | 上海金发科技发展有限公司 | Green weather-proof halogen-free flame-retardant PC composition and preparation method and application thereof |
| CN116178881A (en) * | 2023-03-31 | 2023-05-30 | 金发科技股份有限公司 | High-weather-resistance yellow-background black-word laser marking ABS composite material and preparation method and application thereof |
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2021
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| US5976238A (en) * | 1996-06-17 | 1999-11-02 | Ciba Specialty Chemicals Corporation | Bismuth vanadate pigment powder mixtures |
| JP2006307165A (en) * | 2005-04-01 | 2006-11-09 | Toda Kogyo Corp | Colored resin particles, water-based dispersion containing the colored resin particles, and ink for ink-jet printing or color filter |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114031921A (en) * | 2021-11-29 | 2022-02-11 | 上海金发科技发展有限公司 | Green weather-proof halogen-free flame-retardant PC composition and preparation method and application thereof |
| CN116178881A (en) * | 2023-03-31 | 2023-05-30 | 金发科技股份有限公司 | High-weather-resistance yellow-background black-word laser marking ABS composite material and preparation method and application thereof |
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