CN115141474A - PC composite material with stable coloring and preparation method thereof - Google Patents
PC composite material with stable coloring and preparation method thereof Download PDFInfo
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- CN115141474A CN115141474A CN202110339598.7A CN202110339598A CN115141474A CN 115141474 A CN115141474 A CN 115141474A CN 202110339598 A CN202110339598 A CN 202110339598A CN 115141474 A CN115141474 A CN 115141474A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/10—Encapsulated ingredients
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/36—Sulfur-, selenium-, or tellurium-containing compounds
- C08K5/41—Compounds containing sulfur bound to oxygen
- C08K5/42—Sulfonic acids; Derivatives thereof
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
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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
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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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
- C08L2201/00—Properties
- C08L2201/10—Transparent films; Clear coatings; Transparent materials
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Abstract
The invention discloses a PC composite material with stable coloring and a preparation method thereof, wherein the PC composite material is prepared from the following components in parts by weight: 98.2-99.55 parts of PC resin, 0.05-0.2 part of modified Lisoer scarlet, 0.1-0.6 part of antioxidant and 0.3-1 part of UV stabilizer; the modified Lisol scarlet is prepared by pretreating Lisol scarlet with CTAB, and coating with nano SiO 2 Thus, the compound was obtained. The invention uses Lisoer scarlet (diphenyl-4,4' -di [ (azo-2-) -1-aminonaphthalene-4-sodium sulfonate) with bright color]) As toner, the surface of the toner is coated with nano SiO 2 The cluster can protect the heat-resistant and light-resistant stability of the organic toner on one hand and prevent the toner from agglomerating on the other hand, thereby being beneficial toThe dispersion is more uniform and the dyeing ability is better.
Description
Technical Field
The invention belongs to the field of modification of high polymer materials, and particularly relates to a PC composite material with stable coloring and a preparation method thereof.
Background
Polycarbonate materials (PC materials for short) are widely applied to the fields of automobiles, electronic and electric appliances, optical elements and the like due to the characteristics of excellent impact resistance, heat resistance, dimensional stability, good creep resistance and good transparency.
The most outstanding excellent properties of the polycarbonate are light transmittance, the light transmittance of the polycarbonate is 1mm, the thickness of the polycarbonate is up to 90%, the refractive index of the polycarbonate is high, and the polycarbonate has wide application value in the field of optical elements. Due to the expansion of application fields, transparent PC materials with various colors are needed at present, if the transparency of the materials is ensured, organic toner is added, the organic toner has the defect of poor weather resistance and aging resistance, and due to the existence of organic groups, after the materials are irradiated at high temperature, high humidity and high ultraviolet and used for a long time, the groups are easy to absorb energy and then open rings or break bonds, so that the phenomena of fading, yellowing and the like are caused, and the appearance of the products is influenced.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a PC composite material with stable coloring and a preparation method thereof, and the PC composite material with red and transparent color is prepared.
The purpose of the invention is realized by the following technical scheme:
the PC composite material with stable coloring is prepared from the following components in parts by weight:
the modified Lisol scarlet is prepared by pretreating Lisol scarlet with CTAB, and coating with nano SiO 2 Thus, the compound is obtained. Wherein the chemical structural formulas of the Lixol scarlet and the CTAB are respectively shown as a formula (1) and a formula (2).
As a preferred technical scheme, the PC resin is bisphenol A type polycarbonate resin, and the melt index of the PC resin is 3-50g/10min under the test conditions of 300 ℃ and 1.2 kg.
As a preferable technical scheme, the antioxidant is at least one of hindered phenol antioxidant and phosphite antioxidant.
Preferably, the UV stabilizer is at least one of a benzophenone-based UV stabilizer, a benzotriazole-based UV stabilizer, and a triazine-based UV stabilizer.
As a preferable technical scheme, the preparation method of the modified Lixoll scarlet comprises the following steps:
a. dispersing the Lixol scarlet and CTAB in deionized water to obtain a dispersion liquid;
b. adding ammonia water and sodium silicate solution into the dispersion, and stirring for reaction for 0.5-2h to obtain a mixture; further preferably, the mass concentration of the sodium silicate in the sodium silicate solution is 5-10%; the mass ratio of the Lixol scarlet to the CTAB to the ammonia water to the sodium silicate solution is 15-5:1-2:4-5.
c. And (3) carrying out solid-liquid separation on the mixture to obtain a solid precipitate, and washing and drying the solid precipitate in sequence to obtain the modified Lixol scarlet. Further preferably, the drying temperature is 60-80 ℃, and the drying time is 24-48h.
The preparation principle of the modified Lisol scarlet is as follows:
when dispersed in deionized water, lisolol scarlet forms ionic compounds in water and CTAB ionizes in water to give-N (CH) 3 ) 3+ Ions, anions of the ionization of Lixol scarlet and-N (CH) 3 ) 3+ Obtaining a CTAB modified Lisoer scarlet powder through ion reaction; under the action of ammonia water, sodium silicate generates a silicic acid colloid cluster, when the silicic acid colloid cluster is mixed with a CTAB modified Lixoll scarlet toner, the silicic acid colloid cluster can be coated on the surface of the toner, and a nano SiO is obtained through a subsequent drying step 2 Coated lisolor scarlet, i.e. modified lisolor scarlet.
The invention also provides a preparation method of the PC composite material, which comprises the following steps:
uniformly mixing PC resin, modified Lixol scarlet, an antioxidant and a UV stabilizer according to a ratio to obtain a mixed material, adding the mixed material into a double-screw extruder, and performing melt extrusion granulation to obtain the PC composite material. Further preferably, the processing parameters of the twin-screw extruder are as follows: the extrusion temperature is 220-260 ℃, and the screw rotating speed is 300-600rpm
Compared with the prior art, the invention has the beneficial effects that:
the invention uses Lisoer scarlet (diphenyl-4,4' -di [ (azo-2-) -1-aminonaphthalene-4-sodium sulfonate) with bright color]) As toner, the surface of the toner is coated with nano SiO 2 The cluster can protect the heat-resistant and light-resistant stability of the organic toner on one hand, and prevent the toner from agglomerating on the other hand, thereby being beneficial to more uniform dispersion and better dyeing capability.
Detailed Description
In order that the invention may be more fully understood, reference will now be made to the specific embodiments illustrated. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
The components and the amounts (parts by weight) of the PC composite materials of examples 1 to 5 were as shown in Table 1, and the components and the amounts were prepared as shown in Table 1. Premixing the raw materials in a high-speed mixer for 3-10 minutes, adding the mixture into a double-screw extruder from a main feeding port, wherein the temperature of a feeding section is 220 ℃, the temperature of a compression section is 220 ℃, the temperature of a plasticizing section is 230 ℃, the temperature of a homogenizing section is 240 ℃, the temperature of a die opening is 240 ℃, and the rotating speed of a screw is 400rpm, and performing melt extrusion granulation to obtain the PC material.
The components and characteristics referred to in the above examples are as follows:
the melt index of the PC1 is 24g/10min at 300 ℃ under the test condition of 1.2kg,
the melt index of PC2 is 15g/10min under the test conditions of 300 ℃ and 1.2kg,
the melt index of PC3 is 38g/10min under the test conditions of 300 ℃ and 1.2 kg;
antioxidant 1:2,6-tert-butyl-4-methylphenol,
and (2) antioxidant: bis (3,5-tertiary butyl-4-hydroxyphenyl) sulfide,
antioxidant 3: pentaerythrityl tetrakis [ beta- (3,5-tertiary butyl-4-hydroxyphenyl) propionate;
UV stabilizer 1: a benzophenone-type UV stabilizer UV24, a benzophenone-type UV stabilizer,
UV stabilizer 2: benzotriazole-based UV stabilizers UV326,
UV stabilizer 3: triazine UV stabilizers UV1164;
TABLE 1 Components and parts of Components added in examples 1 to 5 and comparative examples
| Example 1 | Example 2 | Example 3 | Example 4 | Example 5 | Comparative example 1 | |
| PC1 | 99.32 | 59.15 | 59 | 98.2 | ||
| PC2 | 99.28 | 40.4 | ||||
| PC3 | 40 | 99.55 | ||||
| Modified lisol scarlet | 0.08 | 0.12 | 0.15 | 0.10 | 0.05 | |
| Lixoel scarlet | 0.2 | |||||
| Antioxidant 1 | 0.2 | 0.2 | 0.1 | 0.2 | ||
| Antioxidant 2 | 0.1 | 0.3 | 0.2 | |||
| Antioxidant 3 | 0.4 | 0.2 | 0.2 | |||
| UV stabilizer 1 | 0.2 | 0.3 | 0.3 | |||
| UV stabilizer 2 | 0.1 | 0.1 | 0.2 | 0.3 | ||
| UV stabilizer 3 | 0.1 | 0.3 | 0.4 |
The modified lyocell scarlet used in examples 1-5 was prepared according to the following experimental conditions, with the following steps:
a. adding the Lixol scarlet and CTAB into deionized water at room temperature, and stirring for 0.5-2 hours to fully dissolve the mixture into the deionized water to obtain a dispersion liquid;
b. adding ammonia water and sodium silicate solution (with mass concentration of 5% -10%) into the above-mentioned aqueous solution, stirring for 0.5-2 hr;
c. and washing the precipitate, and drying in an oven at 60-80 ℃ for 24-48 hours to obtain the modified lisolor scarlet.
TABLE 2 reaction conditions and raw material amounts for modified Lisorrel Red in examples 1-5
| Example 1 | Example 2 | Example 3 | Example 4 | Example 5 | |
| Lixoll scarlet dosage/g | 15 | 15 | 15 | 15 | 15 |
| CTAB dosage/g | 4 | 3.5 | 4 | 3 | 5 |
| Amount of ammonia solution/mL | 1.5 | 2 | 1 | 1 | 2 |
| Sodium silicate solution dosage/mL | 4.5 | 4 | 4 | 4 | 5 |
| Sodium silicate solution mass concentration/%) | 8 | 6 | 7 | 5 | 10 |
| a step of stirring for a time/h | 1 | 1.2 | 1.5 | 0.5 | 2 |
| b stirring time/h | 1 | 1.2 | 1.5 | 0.5 | 2 |
| c oven temperature/. Degree.C | 70 | 75 | 65 | 60 | 80 |
| c drying time/h | 40 | 30 | 24 | 24 | 48 |
The samples from examples 1 to 5 were injection-molded into 3mm thick plaques and the change in color difference Δ E under different conditions was measured according to the following aging conditions, with the color difference being measured with a CS-10/200/210/220 colorimeter D50 illuminant.
Aging conditions of weather resistance: UVA-340 fluorescence ultraviolet is adopted, and the total ultraviolet irradiation intensity is as follows: 160 W/m 2 Total exposure of 430 kWh/m 2 ；
Aging conditions for heat resistance: standing at 85 ℃ for 500h, and detecting the heat resistance;
TABLE 3 results of performance test of PC composites prepared in examples 1 to 5 and comparative example 1
| Example 1 | Example 2 | Example 3 | Example 4 | Example 5 | Comparative example 1 | |
| Weather resistance test Delta E | 0.34 | 0.28 | 0.35 | 0.32 | 0.37 | 7.41 |
| Heat resistance test Delta E | 0.19 | 0.18 | 0.20 | 0.17 | 0.21 | 6.19 |
The results show that compared with the traditional material, the PC composite material prepared by the invention has small color difference change after aging, and the product has excellent weather resistance and heat resistance.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
Claims (9)
1. A PC composite material that is color stable, characterized by: the composition is prepared from the following components in parts by weight:
the modified Lisol scarlet is prepared by pretreating Lisol scarlet with CTAB, and coating with nano SiO 2 Thus, the compound was obtained.
2. The PC composite of claim 1, wherein: the PC resin is bisphenol A polycarbonate resin, and the melt index of the PC resin is 3-50g/10min under the test conditions of 300 ℃ and 1.2 kg.
3. The PC composite of claim 1, wherein: the antioxidant is at least one of hindered phenol antioxidant and phosphite antioxidant.
4. The PC composite of claim 1, wherein: the UV stabilizer is at least one of benzophenone UV stabilizer, benzotriazole UV stabilizer and triazine UV stabilizer.
5. The PC composite of claim 1, wherein: the preparation method of the modified Lisol scarlet comprises the following steps:
a. dispersing the Lixol scarlet and CTAB in deionized water to obtain a dispersion liquid;
b. adding ammonia water and sodium silicate solution into the dispersion, and stirring for reaction for 0.5-2h to obtain a mixture;
c. and (3) carrying out solid-liquid separation on the mixture to obtain a solid precipitate, and washing and drying the solid precipitate in sequence to obtain the modified Lixol scarlet.
6. The PC composite of claim 5, wherein: the mass concentration of the sodium silicate in the sodium silicate solution is 5-10%; the mass ratio of the Lixol scarlet to the CTAB to the ammonia water to the sodium silicate solution is 15-5:1-2:4-5.
7. The PC composite material of claim 5, wherein: the drying temperature is 60-80 ℃, and the drying time is 24-48h.
8. The method for preparing a PC composite material according to any one of claims 1 to 7, characterized in that: the method comprises the following steps:
uniformly mixing PC resin, modified Lixol scarlet, an antioxidant and a UV stabilizer according to a ratio to obtain a mixed material, adding the mixed material into a double-screw extruder, and performing melt extrusion granulation to obtain the PC composite material.
9. The method for producing according to claim 8, characterized in that: the processing parameters of the double-screw extruder are as follows: the extrusion temperature is 220-260 ℃, and the screw rotating speed is 300-600rpm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110339598.7A CN115141474A (en) | 2021-03-30 | 2021-03-30 | PC composite material with stable coloring and preparation method thereof |
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| CN202110339598.7A CN115141474A (en) | 2021-03-30 | 2021-03-30 | PC composite material with stable coloring and preparation method thereof |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105924926A (en) * | 2016-07-01 | 2016-09-07 | 东莞市海越塑化有限公司 | Anti-aging infrared-penetrable novel composite material and preparation method thereof |
| CN109082092A (en) * | 2017-06-14 | 2018-12-25 | 合肥杰事杰新材料股份有限公司 | A kind of makrolon material and preparation method thereof |
-
2021
- 2021-03-30 CN CN202110339598.7A patent/CN115141474A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105924926A (en) * | 2016-07-01 | 2016-09-07 | 东莞市海越塑化有限公司 | Anti-aging infrared-penetrable novel composite material and preparation method thereof |
| CN109082092A (en) * | 2017-06-14 | 2018-12-25 | 合肥杰事杰新材料股份有限公司 | A kind of makrolon material and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| QIANER MA ET AL.: "Modification of mechanical and color properties of polypropylene with colored nano-SiO2 prepared from diatomite", J. APPL. POLYM. SCI., pages 48328 - 9 * |
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