CN111320865A - High-temperature-resistant color master batch and preparation method thereof - Google Patents
High-temperature-resistant color master batch and preparation method thereof Download PDFInfo
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- CN111320865A CN111320865A CN201811523121.9A CN201811523121A CN111320865A CN 111320865 A CN111320865 A CN 111320865A CN 201811523121 A CN201811523121 A CN 201811523121A CN 111320865 A CN111320865 A CN 111320865A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/22—Compounding polymers with additives, e.g. colouring using masterbatch techniques
- C08J3/226—Compounding polymers with additives, e.g. colouring using masterbatch techniques using a polymer as a carrier
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2377/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers
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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
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/02—Organic and inorganic 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2265—Oxides; Hydroxides of metals of iron
- C08K2003/2272—Ferric oxide (Fe2O3)
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
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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
- C08K5/16—Nitrogen-containing compounds
- C08K5/20—Carboxylic acid amides
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Abstract
The invention discloses a high-temperature resistant color master batch and a preparation method thereof, wherein the high-temperature resistant color master batch comprises the following main components in parts by weight: 2-5 parts of iron oxide red, 2-8 parts of antioxidant, 70-100 parts of nylon, 0.5-3.5 parts of titanium dioxide, 1.1-4.1 parts of carbon black and 0.1-1.9 parts of pigment; the method comprises the following steps: 1) proportioning raw materials according to the weight portion of the color master batch; 2) putting the raw materials proportioned in the step 1) into a uniform stirrer for stirring at the stirring temperature of 80-110 ℃ for 5-10 min; 3) putting the uniformly stirred mixture obtained in the step 2) into a double-screw extruder for melting, blending and granulating; in conclusion, the color master batch provided by the invention has the advantages of high temperature resistance, no color change and no deformation.
Description
Technical Field
The invention relates to the field of materials, in particular to a high-temperature-resistant color master batch and a preparation method thereof.
Background
The color master batch is a novel high-molecular composite coloring material prepared by well dispersing a colorant, a carrier resin and various auxiliary agents with high proportion. The colorant is the basic component of the color master batch, and the content is generally between 20 and 80 percent. The white master batch usually adopts titanium dioxide, barium sulfate, lithopone, zinc sulfide, calcium carbonate and the like as coloring agents, the black master batch adopts carbon black as a coloring agent, and the color master batch adopts azo pigment, phthalocyanine pigment, quinacridone pigment, iron oxide red, metal powder, pearl powder, dye and the like as coloring agents. The resin is a carrier of the color master batch, has the properties of softening by heating and hardening by cooling, and has the characteristics of no chemical reaction and the like. The resin is subjected to processes such as melting and shearing, so that the colorant is uniformly distributed in the resin. In order to ensure the compatibility of the carrier with the plastic to be colored, the same resin as the plastic to be colored is generally selected as the carrier, which facilitates better dispersion of the colorant. The dispersing agent belongs to an auxiliary agent and can promote the coloring agent to be uniformly dispersed in the resin and not to be agglomerated. The dispersing agent commonly used at present is polyethylene low molecular wax, stearate, glycol and the like. According to the requirements of the application and performance of the product, other various auxiliary agents such as antistatic agent, antioxidant, brightener, light stabilizer, foaming agent, antibacterial agent, delustering agent, flame retardant and the like are added in the preparation process of the color master batch, so that the plastic product is endowed with special functions.
The color master batch is more and more widely applied in industrial production, and people have higher and higher requirements on the functionality of the color master batch. Environmental pressures and new demands for downstream synthetic resins are driving technological advances in the color masterbatch industry. The color master batch industry mainly using small-scale enterprises must adopt a research and development mode of enterprise union and industrial chain cooperation, improve the production process, promote the clean production level, and develop a new process and a new formula aiming at the new requirements of downstream high-quality plastic and chemical fiber products.
Chinese patent publication No. CN 102070820, a high temperature resistant polyethylene color master batch and a preparation method thereof, and discloses a high temperature resistant polyethylene color master batch and a preparation method thereof. The high-temperature resistant polyethylene color master batch comprises 20-30% of matrix resin, 3-5% of nano montmorillonite, 7-15% of dispersing agent, 0.3-1% of crosslinking inhibitor, 0.5-2% of polysiloxane organic silicon surfactant, 1-3% of antioxidant, 1-3% of light stabilizer and 20-70% of pigment; the crosslinking inhibitor is dimethyl sulfoxide, dimethylamine or dimethylformamide; the dispersing agent is low molecular polyethylene wax or a compound of ethylene-vinyl acetate wax and fluorine-containing polymer. After the PE-RT is doped in proportion, PE-RT pipelines with various colors can be manufactured, and the mechanical property of the PE-RT pipe is improved without being reduced.
However, although the color master batch of the prior art is also proposed to have the function of high temperature resistance, the high temperature resistance effect of the color master batch of the prior art needs to be further improved.
Disclosure of Invention
Aiming at the technical problems, the invention provides the color master batch which has high temperature resistance and does not change color or deform.
The invention provides a high-temperature-resistant color master batch, which is characterized by comprising the following main components in parts by weight: 2-5 parts of iron oxide red, 2-8 parts of antioxidant, 70-100 parts of nylon, 0.5-3.5 parts of titanium dioxide, 1.1-4.1 parts of carbon black and 0.1-1.9 parts of pigment.
Preferably, the pigment comprises nickel titanium yellow.
Preferably, the weight ratio of the nickel titanium yellow to the iron oxide red to the antioxidant is 0.9-1: 2.5-2.7: 3.9-4.1.
Preferably, the antioxidant comprises one or a combination of two of basf 1098 and B911.
Through long-term research and a large number of tests, the color master batch disclosed by the invention can still keep the original color and appearance at a high temperature for a long time, and analysis reasons may be that iron oxide, an antioxidant, carbon black and the like in the formula of the color master batch are mutually cooperated, so that a good high-temperature resistant effect can still be achieved under the condition of low content; particularly, the product effect is more obvious when the pigment is nickel titanium yellow, and the analysis possibly shows that the nickel titanium yellow has the characteristics of high heat resistance, light resistance, weather resistance and the like, and when the nickel titanium yellow is used as the pigment, the color of the nickel titanium yellow is not faded at high temperature, and the high-temperature resistance effects of iron oxide, antioxidant, carbon black and the like can be further promoted.
In another aspect of the present invention, a preparation method of a high temperature resistant color master batch is provided, which comprises the following steps:
1) proportioning the raw materials according to the weight portion of the color master batch provided by the invention;
2) putting the raw materials proportioned in the step 1) into a uniform stirrer for stirring at the stirring temperature of 80-110 ℃ for 5-10 min;
3) putting the uniformly stirred mixture obtained in the step 2) into a double-screw extruder for melt blending granulation.
Preferably, the twin-screw extruder has 9 sections, and the temperature ranges of the sections are respectively as follows: 215-225 ℃, 225-235 ℃, 245-255 ℃, 250-260 ℃, 255-265 ℃, 250-260 ℃, 245-255 ℃ and 245-255 ℃.
Because the formula of the color master batch is greatly different from the prior art, the manufacturing process of the color master batch is greatly improved, particularly the traditional double-screw extruder is changed from 3-7 sections to 9 sections, and the corresponding temperature of each section is also changed from the traditional 3-7 sections to 9 sections. The reason for the analysis is probably that the formula and the proportion of the color master batch are changed, so that more time is needed in the double-screw extrusion process and the qualified rate of the color master batch is ensured by more temperature gradients.
Compared with the prior art, the technical scheme of the invention has the following advantages: the invention provides a formula and a proportion of a novel color master batch, the color master batch has the advantages of stronger and long-term high temperature resistance, and the invention also provides a manufacturing method of the color master batch.
Detailed Description
The conception, the specific structure, and the technical effects produced by the present invention will be further described below to fully understand the objects, the features, and the effects of the present invention.
Example 1
1. The raw materials of the masterbatch 1 are shown in the following table:
the manufacturing process of the color master batch comprises the following steps:
1) the raw materials in the proportion in the table are put into a uniform stirrer to be stirred, the stirring temperature is 80 ℃, and the stirring time is 10 min;
2) and putting the uniformly stirred mixture into a double-screw extruder for melt blending granulation. The double-screw extruder has 11 sections in total, and the temperature ranges of the sections are respectively as follows: 215 ℃, 225 ℃, 245 ℃, 250 ℃, 255 ℃, 256 ℃, 250 ℃, 245 ℃ and 247 ℃.
Example 2
1. The raw materials of the masterbatch 2 are shown in the following table:
2. the manufacturing process of the color master batch comprises the following steps:
1) putting the raw materials in the ratio in the table above into a uniform stirrer for stirring at 90 ℃ for 8 min;
2) and putting the uniformly stirred mixture into a double-screw extruder for melt blending granulation. The double-screw extruder has 11 sections in total, and the temperature ranges of the sections are respectively as follows: 220 deg.C, 230 deg.C, 250 deg.C, 255 deg.C, 260 deg.C, 255 deg.C, 250 deg.C, 255 deg.C.
Example 3
1. The raw materials of the color master batch 3 are shown in the following table
2. The manufacturing process of the color master batch comprises the following steps:
1) the raw materials in the proportion in the table are put into a uniform stirrer to be stirred, the stirring temperature is 100 ℃, and the stirring time is 5 min;
2) and putting the uniformly stirred mixture into a double-screw extruder for melt blending granulation. The double-screw extruder has 11 sections in total, and the temperature ranges of the sections are respectively as follows: 225 deg.C, 235 deg.C, 255 deg.C, 260 deg.C, 265 deg.C, 260 deg.C, 250 deg.C, 255 deg.C, 250 deg.C.
Example 4
The color master batches of the embodiment 1, the embodiment 2 and the embodiment 3, the color master batch 1, the color master batch 2 and the color master batch 3 are adopted to manufacture the electric appliance connectors which are named as the connector 1, the connector 2 and the connector 3 respectively, and the shapes and the sizes of the three connectors are completely consistent.
The following tests were carried out for the connector 1, the connector 2, and the connector 3:
1) the connector 1, the connector 2 and the connector 3 are perforated, and the hole diameters of the connector 1, the connector 2 and the connector 3 are kept the same.
2) The aperture of the connector 1, the aperture of the connector 2 and the aperture of the connector 3 are respectively marked as R1, R2 and R3, and the difference between any two of R1, R2 and R3 is not more than 0.1 cm.
3) 3 500g iron balls are suspended through the holes of connector 1, connector 2, and connector 3.
4) And placing the connector 1, the connector 2 and the connector 3 in an environment of 120 ℃ for 1 hour.
5) The aperture diameters of connector 1, connector 2, and connector 3 were measured again and designated as R4, R5, and R6, respectively.
The results of the above-mentioned iron ball suspension test are shown in the following table:
| aperture before test (R) | Aperture after test (R) | Aperture difference (△ R) | |
| Connector 1 | R1＝1.50cm | R4＝1.51cm | 0.01cm |
| Connector 2 | R2＝1.50cm | R5＝1.50cm | 0 |
| Connector 3 | R3＝1.55 | R6＝1.57cm | 0.02cm |
According to the table, the connector 1, the connector 2 and the connector 3 made of the color master batch 1, the color master batch 2 and the color master batch 3 are only changed in shape of 0-0.02cm under the conditions of lasting for 1 hour at 120 ℃ and loading of 500g of iron ball, and therefore the color master batch has good plasticity at high temperature.
Example 5
The following experiments were carried out on masterbatch 1, masterbatch 2, masterbatch 3:
1) the color tones of the color master batch 1, the color master batch 2 and the color master batch 3 are recorded as CT1, CT2 and CT3 respectively, and the difference between the CT1, the CT2 and the CT3 is not more than 0.1.
2) And placing the color master batch 1, the color master batch 2 and the color master batch 3 in a steam environment at 100 ℃ for 10 hours.
3) And detecting the color tones of the color master batch 1, the color master batch 2 and the color master batch 3 again, wherein the color tones are CT4, CT5 and CT6 respectively.
The results of the above tests are given in the following table:
| color tone before test (CT) | Color tone after test (CT) | Hue difference (△ CT) | |
| Connector 1 | CT1＝-16.1 | CT4＝-16.5 | 0.4 |
| Connector 2 | CT2＝-16.0 | CT5＝-16.2 | 0.2 |
| Connector 3 | CT3＝-16.2 | CT6＝-16.8 | 0.6 |
According to the table, the color difference change of the color master batch 1, the color master batch 2 and the color master batch 3 is 0.2-0.6 after 10 hours in the steam environment at 100 ℃. Therefore, the color master batch has good performance of keeping color tone under high-temperature and high-humidity environment.
Example 6
The following experiments were carried out on masterbatch 1, masterbatch 2, masterbatch 3: the master batch 1, the master batch 2 and the master batch 3 are used for injection molding, the temperature is set to be 60-320 ℃, and the color of the product is consistent. The color master batch of the invention is used for injection molding, and has no color difference under the condition that the temperature is as high as 320 ℃.
In conclusion, the color master batch can still keep the appearance and color of the product almost unchanged under the conditions of high temperature, high humidity and load, and the color master batch can really realize long-term high temperature resistance.
The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.
Claims (6)
1. The high-temperature-resistant color master batch is characterized by comprising the following main components in parts by weight:
2-5 parts of iron oxide red, 2-8 parts of antioxidant, 70-100 parts of nylon, 0.5-3.5 parts of titanium dioxide, 1.1-4.1 parts of carbon black and 0.1-1.9 parts of pigment.
2. The high temperature resistant color masterbatch of claim 1 wherein the pigment comprises nickel titanium yellow.
3. The high-temperature-resistant color master batch of claim 2, wherein the weight ratio of the nickel titanium yellow to the iron oxide red to the antioxidant is 0.9-1: 2.5-2.7: 3.9-4.1.
4. The high temperature resistant color masterbatch according to claim 1 wherein the antioxidant comprises one or a combination of basf 1098 and basf B911.
5. The process for preparing a high temperature resistant color masterbatch according to any one of claims 1 to 4, comprising the steps of:
1) proportioning the raw materials according to the weight portion of claim 1;
2) putting the raw materials proportioned in the step 1) into a uniform stirrer for stirring at the stirring temperature of 80-110 ℃ for 5-10 min;
3) putting the uniformly stirred mixture obtained in the step 2) into a double-screw extruder for melt blending granulation.
6. The method of claim 5, wherein the twin screw extruder has a total of 9 stages, and the temperature ranges in each stage are: 215-225 ℃, 225-235 ℃, 245-255 ℃, 250-260 ℃, 255-265 ℃, 250-260 ℃, 245-255 ℃ and 245-255 ℃.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811523121.9A CN111320865A (en) | 2018-12-13 | 2018-12-13 | High-temperature-resistant color master batch and preparation method thereof |
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| CN201811523121.9A CN111320865A (en) | 2018-12-13 | 2018-12-13 | High-temperature-resistant color master batch and preparation method thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0042627A1 (en) * | 1980-06-25 | 1981-12-30 | Elkem Metals Company | Improved color pigment for use in the production of thermoplastic articles |
| CN105218839A (en) * | 2015-10-23 | 2016-01-06 | 揭东巴黎万株纱华纺织有限公司 | A kind of Masterbatch preparation technology |
| CN106715147A (en) * | 2014-07-18 | 2017-05-24 | 卡罗来纳色彩公司 | Process and composition for well-dispersed, highly loaded color masterbatch |
| CN108929539A (en) * | 2017-05-25 | 2018-12-04 | 合肥杰事杰新材料股份有限公司 | A kind of bright glass fiber reinforced nylon 6 material and preparation method thereof |
-
2018
- 2018-12-13 CN CN201811523121.9A patent/CN111320865A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0042627A1 (en) * | 1980-06-25 | 1981-12-30 | Elkem Metals Company | Improved color pigment for use in the production of thermoplastic articles |
| CN106715147A (en) * | 2014-07-18 | 2017-05-24 | 卡罗来纳色彩公司 | Process and composition for well-dispersed, highly loaded color masterbatch |
| CN105218839A (en) * | 2015-10-23 | 2016-01-06 | 揭东巴黎万株纱华纺织有限公司 | A kind of Masterbatch preparation technology |
| CN108929539A (en) * | 2017-05-25 | 2018-12-04 | 合肥杰事杰新材料股份有限公司 | A kind of bright glass fiber reinforced nylon 6 material and preparation method thereof |
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Application publication date: 20200623 |
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