CN111944303A - Special master batch for thermoplastic polyurethane elastomer rubber and preparation method thereof - Google Patents
Special master batch for thermoplastic polyurethane elastomer rubber and preparation method thereof Download PDFInfo
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- CN111944303A CN111944303A CN202010876633.4A CN202010876633A CN111944303A CN 111944303 A CN111944303 A CN 111944303A CN 202010876633 A CN202010876633 A CN 202010876633A CN 111944303 A CN111944303 A CN 111944303A
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- thermoplastic polyurethane
- polyurethane elastomer
- elastomer rubber
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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
- C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2375/04—Polyurethanes
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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
- C08J2475/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2475/04—Polyurethanes
-
- 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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- Health & Medical Sciences (AREA)
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- Processes Of Treating Macromolecular Substances (AREA)
Abstract
The invention provides a special master batch for thermoplastic polyurethane elastomer rubber and a preparation method thereof, wherein the master batch comprises the following components in parts by mass: 40-55 parts of thermoplastic polyurethane elastomer rubber, 30-50 parts of pigment carbon black and 8-18 parts of dispersing agent; the preparation method comprises the following steps: the preparation method comprises the following steps: s1, measuring and weighing raw materials; s2, mixing to 150-200 ℃ in a heating mixer; s3, placing the materials into a storage tank, stirring and cooling; s4, metering and feeding into a double-screw extruder; and S5, granulating by using a granulator to obtain a finished product. The invention solves the problems of poor crystal point dispersion and delamination of other black master batches used for TPU, and simultaneously maintains the low temperature property, wear resistance and rebound resilience of TPU. Meanwhile, for ABS plastics with tensile strength needing to be considered, the special TPU master batch can improve the tensile strength.
Description
Technical Field
The invention relates to the technical field of plastic additives, in particular to a special master batch for thermoplastic polyurethane elastomer rubber (TPU) and a preparation method thereof.
Background
The TPU serving as a novel thermoplastic polyurethane elastomer rubber has the advantages of high mechanical strength, good cold resistance, high wear resistance and the like, and is wide in market application.
However, in the prior art, the produced polyethylene black master batch has poor compatibility with TPU, and the situations of poor dispersion of crystal points and delamination are easy to occur. The compatibility of TPU with PA and ABS is good, but the production difficulty is high, and the influence on the tensile strength of ABS plastics is small. In view of the above factors, it is urgently needed to develop a special masterbatch for TPU to solve the above problems.
Disclosure of Invention
In view of the above, the invention provides a special master batch for thermoplastic polyurethane elastomer rubber and a preparation method thereof, which solve the problems of poor crystal point dispersion and delamination of other black master batches when the TPU is used, and simultaneously maintain the low temperature property, wear resistance and rebound resilience of the TPU. Meanwhile, for ABS plastics with tensile strength needing to be considered, the special TPU master batch can improve the tensile strength.
The technical scheme of the invention is as follows:
the master batch special for the thermoplastic polyurethane elastomer rubber is characterized by comprising the following components in parts by mass: 40-55 parts of thermoplastic polyurethane elastomer rubber, 30-50 parts of pigment carbon black and 8-18 parts of dispersing agent.
Further, the invention comprises the following components in parts by weight: 45-50 parts of thermoplastic polyurethane elastomer rubber, 35-45 parts of pigment carbon black and 10-15 parts of dispersing agent.
Further, the invention comprises the following components in parts by weight: thermoplastic polyurethane elastomer rubber 48, pigment carbon black 40 and dispersing agent 12.
Further, the dispersant is paraffin. In the present invention, the dispersant may be other prior art dispersants in the art.
The invention also provides a preparation method of the special master batch for the thermoplastic polyurethane elastomer rubber, which is characterized by comprising the following steps of:
s1, weighing the raw materials;
s2, mixing to 150-200 ℃ in a heating mixer;
s3, placing the materials into a storage tank, stirring and cooling;
s4, metering and feeding into a double-screw extruder;
and S5, cutting into granules by a granulator to obtain a finished product.
Further, in step S4, the processing parameters of the twin-screw extruder are: the rotation speed of the host computer is 440-.
Further, in step S4, the processing parameters of the twin-screw extruder are: the rotating speed of the host machine is 480r/min, the current is 35A, the feeding amount is 20Hz, gradient cooling is adopted, the temperature is 165-.
Further, in the step S4, a gradient temperature reduction is adopted, the temperature change is 180-170-165-and-180-170-165-and the time interval of the gradient temperature reduction is 1-10 min.
Product detection is carried out on the special master batch for the thermoplastic polyurethane elastomer rubber prepared by the invention, and the fluidity MI of the master batch is 4.0-5.0g/10 min; dispersibility: adding 3% of TPU raw material into the TPU raw material for film blowing, wherein within the range of 38cm x 38cm, the number of 0.04 mm-0.08 crystal points is less than 25, and the TPU raw material meets the first-stage film blowing standard; the blackness is 26-30; compatibility: the compatibility with TPU is very good, and no flaw or peeling is seen; the ABS is added in 2 percent for injection molding, and the tensile strength of the ABS is detected to be very close to that of blank ABS. Therefore, when the special color master batch produced by the invention is used for TPU elastomers, the special color master batch has good compatibility with TPU, has no great influence on the mechanical property of TPU, and has the comprehensive property far superior to that of black color master batch taking PE as a carrier.
The invention solves the problems of poor crystal point dispersion and delamination of other black master batches used for TPU, and simultaneously maintains the low temperature property, wear resistance and rebound resilience of TPU. Meanwhile, for ABS plastics with tensile strength needing to be considered, the special TPU master batch can improve the tensile strength.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the detailed description and specific examples, while indicating the scope of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
Example 1
The master batch special for the thermoplastic polyurethane elastomer rubber is characterized by comprising the following components in parts by mass: thermoplastic polyurethane elastomer rubber 48, pigment carbon black 40 and dispersing agent 12.
Further, the dispersant is paraffin.
Example 2
The master batch special for the thermoplastic polyurethane elastomer rubber is characterized by comprising the following components in parts by mass: thermoplastic polyurethane elastomer rubber 40, pigment carbon black 30 and dispersant 8.
Further, the dispersant is paraffin.
Example 3
The master batch special for the thermoplastic polyurethane elastomer rubber is characterized by comprising the following components in parts by mass: thermoplastic polyurethane elastomer rubber 55, pigment carbon black 50 and dispersant 18.
Further, the dispersant is paraffin.
Example 4
The master batch special for the thermoplastic polyurethane elastomer rubber comprises the following components in parts by mass: thermoplastic polyurethane elastomer rubber 45, pigment carbon black 35 and dispersant 10.
Further, the dispersant is paraffin.
Example 5
The master batch special for the thermoplastic polyurethane elastomer rubber comprises the following components in parts by mass: 50 parts of thermoplastic polyurethane elastomer rubber, 45 parts of pigment carbon black and 15 parts of dispersing agent.
Further, the dispersant is paraffin.
Example 6
The preparation method of the master batch special for the thermoplastic polyurethane elastomer rubber applied to the embodiments 1 to 5 is characterized by comprising the following steps of:
s1, weighing the raw materials;
s2, mixing to 170 ℃ in a heating mixer;
s3, placing the materials into a storage tank, stirring and cooling;
s4, metering and feeding into a double-screw extruder;
and S5, cutting into granules by a granulator to obtain a finished product.
Further, in step S4, the processing parameters of the twin-screw extruder are: the rotating speed of the host machine is 480r/min, the current is 35A, the feeding amount is 20Hz, gradient cooling is adopted, the temperature is 165-.
Further, in the step S4, a gradient temperature reduction is adopted, the temperature change is 180-170-165-and-180-and-170-165-and the time interval of the gradient temperature reduction is 3 min.
Example 7
The preparation method of the master batch special for the thermoplastic polyurethane elastomer rubber applied to the embodiments 1 to 5 is characterized by comprising the following steps of:
s1, weighing the raw materials;
s2, mixing to 160 ℃ in a heating mixer;
s3, placing the materials into a storage tank, stirring and cooling;
s4, metering and feeding into a double-screw extruder;
and S5, cutting into granules by a granulator to obtain a finished product.
Further, in step S4, the processing parameters of the twin-screw extruder are: the rotation speed of the host machine is 455r/min, the current is 32A, the feeding amount is 19Hz, gradient cooling is adopted, the temperature is 160-.
Further, in the step S4, a gradient temperature reduction is adopted, the temperature change is 185-170-165-160, and the time interval of the gradient temperature reduction is 4 min.
Example 8
The preparation method of the master batch special for the thermoplastic polyurethane elastomer rubber applied to the embodiments 1 to 5 is characterized by comprising the following steps of:
s1, weighing the raw materials;
s2, mixing to 185 ℃ in a heating mixer;
s3, placing the materials into a storage tank, stirring and cooling;
s4, metering and feeding into a double-screw extruder;
and S5, cutting into granules by a granulator to obtain a finished product.
Further, in step S4, the processing parameters of the twin-screw extruder are: the rotation speed of the main machine is 500r/min, the current is 38A, the feeding amount is 22Hz, gradient cooling is adopted, the temperature is 170-.
Further, in the step S4, a gradient temperature reduction is adopted, the temperature change is 190-.
Experimental testing
The master batches prepared in examples 1 to 5 were subjected to the following performance tests: respectively measuring the fluidity, the dispersibility, the blackness, the compatibility and the tensile strength of the composite material, and adopting a national standard method for the tensile strength; wherein, the testing method of the dispersibility is that 3 percent of TPU raw material is added into the TPU raw material for film blowing, and the number of 0.04mm to 0.08 crystal points is calculated within the range of 38cm to 38 cm; in the tensile strength test, the test was carried out with 2% addition to ABS injection molding.
The fluidity MI of the product is 4.0-5.0g/10 min; adding 3% of TPU raw material into the TPU raw material for film blowing, wherein within the range of 38cm x 38cm, the number of 0.04 mm-0.08 crystal points is less than 25, and the TPU raw material meets the first-stage film blowing standard; the blackness is 26-30; compatibility: the compatibility with TPU is very good, and no flaw or peeling is seen; the ABS with 2 percent of the total weight is added for injection molding, the tensile strength and blank ABS tensile strength are detected, and the test results are shown in the following table.
| Test results | Example 1 | Example 2 | Example 3 | Example 4 | Example 5 |
| Fluidity of the resin | 4.5g/10min | 4.2g/10min | 4.7g/10min | 4.4g/10min | 4.6g/10min |
| Dispersibility | 15 crystal points | Crystal point 23 | 21 crystal points | 18 crystal points | 20 crystal points |
| Degree of blackness | 28.5 | 26.7 | 27.2 | 28.2 | 27.9 |
| Compatibility | No defect and no peeling | No defect and no peeling | No defect and no peeling | No defect and no peeling | No defect and no peeling |
| Tensile strength | 54.46 | 54.09 | 54.35 | 53.87 | 54.28 |
| Tensile strength of blank ABS | 53.81 | 53.81 | 53.81 | 53.81 | 53.81 |
When the special color master batch produced by the invention is used for TPU elastomers, the special color master batch has good compatibility with TPU, has no great influence on the mechanical property of TPU, and has the comprehensive property far superior to that of black master batch taking PE as a carrier.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art. It should be noted that the technical features not described in detail in the present invention can be implemented by any prior art in the field.
Claims (9)
1. The master batch special for the thermoplastic polyurethane elastomer rubber is characterized by comprising the following components in parts by mass: 40-55 parts of thermoplastic polyurethane elastomer rubber, 30-50 parts of pigment carbon black and 8-18 parts of dispersing agent.
2. The master batch special for the thermoplastic polyurethane elastomer rubber according to claim 1, which is characterized by comprising the following components in parts by mass: 45-50 parts of thermoplastic polyurethane elastomer rubber, 35-45 parts of pigment carbon black and 10-15 parts of dispersing agent.
3. The master batch special for the thermoplastic polyurethane elastomer rubber according to claim 2, which is characterized by comprising the following components in parts by mass: thermoplastic polyurethane elastomer rubber 48, pigment carbon black 40 and dispersing agent 12.
4. The master batch special for thermoplastic polyurethane elastomer rubber according to any one of claims 1 to 3, wherein the dispersant is paraffin.
5. The preparation method of the special master batch for the thermoplastic polyurethane elastomer rubber as claimed in claim 4, characterized by comprising the following steps:
s1, weighing the raw materials;
s2, mixing to 150-200 ℃ in a heating mixer;
s3, placing the materials into a storage tank, stirring and cooling;
s4, metering and feeding into a double-screw extruder;
and S5, cutting into granules by a granulator to obtain a finished product.
6. The preparation method of the masterbatch special for thermoplastic polyurethane elastomer rubber according to claim 5, wherein in the step S4, the processing parameters of the twin-screw extruder are as follows: the rotation speed of the host computer is 440-.
7. The preparation method of the masterbatch special for thermoplastic polyurethane elastomer rubber according to claim 6, wherein in the step S4, the processing parameters of the twin-screw extruder are as follows: the rotating speed of the host machine is 480r/min, the current is 35A, the feeding amount is 20Hz, gradient cooling is adopted, the temperature is 165-.
8. The method for preparing the master batch special for thermoplastic polyurethane elastomer rubber as claimed in claim 7, wherein in the step S4, the temperature gradient is adopted, and the temperature change is 180-170-165-180-170-165-180-170-165-180-170-165-180-170-165.
9. The preparation method of the master batch special for thermoplastic polyurethane elastomer rubber according to any one of claims 6 to 8, wherein the time interval of gradient cooling is 1-10 min.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010876633.4A CN111944303A (en) | 2020-08-27 | 2020-08-27 | Special master batch for thermoplastic polyurethane elastomer rubber and preparation method thereof |
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| CN202010876633.4A CN111944303A (en) | 2020-08-27 | 2020-08-27 | Special master batch for thermoplastic polyurethane elastomer rubber and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113150580A (en) * | 2021-04-28 | 2021-07-23 | 科纳德高分子材料(昆山)有限公司 | Method for processing pigment carbon black into color master batch applied to chemical fiber |
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|---|---|---|---|---|
| CN103804891A (en) * | 2014-03-11 | 2014-05-21 | 北京化工大学 | Thermoplastic polyurethane blue master batch and preparation method thereof |
| CN108410159A (en) * | 2018-03-23 | 2018-08-17 | 广州市聚丽颜料塑胶工业有限公司 | A kind of TPU Masterbatch and preparation method thereof |
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- 2020-08-27 CN CN202010876633.4A patent/CN111944303A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103804891A (en) * | 2014-03-11 | 2014-05-21 | 北京化工大学 | Thermoplastic polyurethane blue master batch and preparation method thereof |
| CN108410159A (en) * | 2018-03-23 | 2018-08-17 | 广州市聚丽颜料塑胶工业有限公司 | A kind of TPU Masterbatch and preparation method thereof |
Non-Patent Citations (2)
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113150580A (en) * | 2021-04-28 | 2021-07-23 | 科纳德高分子材料(昆山)有限公司 | Method for processing pigment carbon black into color master batch applied to chemical fiber |
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Application publication date: 20201117 |
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