CN113088001B - Color master batch based on nano microcapsule wrapping technology and preparation method thereof - Google Patents
Color master batch based on nano microcapsule wrapping technology and preparation method thereof Download PDFInfo
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- 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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- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
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- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/04—Homopolymers or copolymers of ethene
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
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- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/06—Pretreated ingredients and ingredients covered by the main groups C08K3/00 - C08K7/00
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- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/38—Boron-containing compounds
- C08K2003/382—Boron-containing compounds and nitrogen
- C08K2003/385—Binary compounds of nitrogen with boron
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- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/01—Use of inorganic substances as compounding ingredients characterized by their specific function
- C08K3/013—Fillers, pigments or reinforcing additives
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
- C08K5/0041—Optical brightening agents, organic pigments
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/06—Elements
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Abstract
The invention belongs to the technical field of high polymer materials, and particularly relates to a color master batch based on a nano microcapsule wrapping technology and a preparation method thereof. The invention provides a color master batch based on a nanometer microcapsule packaging technology and a preparation method thereof, aiming at the problem that the temperature sensing sensitivity of the temperature sensing color master batch in the prior art is still to be improved. According to the invention, a certain amount of heat-conducting additive is added into the polypropylene main material, so that the heat-conducting property of the prepared color master batch is improved, and the sensitivity of the microcapsule toner in the color master batch to temperature change is improved, namely the temperature sensitivity of the color master batch is improved.
Description
Technical Field
The invention belongs to the technical field of high polymer materials, and particularly relates to a color master batch based on a nano microcapsule wrapping technology and a preparation method thereof.
Background
The color master batch is a novel special colorant for high polymer materials, and is also called a pigment preparation. The color master is mainly used for plastics. Color concentrates are composed of three basic elements, a pigment or dye, a carrier and additives, and are aggregates prepared by uniformly supporting an excessive amount of pigment in a resin, and can be referred to as pigment concentrates, so that they have a higher tinctorial strength than the pigment itself. During processing, a small amount of color master batch is mixed with uncolored resin, and colored resin or products with designed pigment concentration can be obtained. In order to endow plastic products with more abundant functions, temperature-sensitive color-changing color master batches, namely color master batches capable of changing colors along with temperature change, are added with temperature-sensitive color-changing pigments prepared by an electron transfer type organic compound system, but the temperature-sensitive sensitivity of the temperature-sensitive color master batches in the prior art is still required to be improved.
For example, the chinese patent application discloses a thermochromic color masterbatch for polypropylene fiber and a preparation method thereof [ application No.: 201610144413.6], the inventive color master batch for polypropylene fiber comprises color-changing colorant, dispersant, other adjuvants, and carrier with melting point below 275 deg.C and good compatibility with polypropylene; wherein, the color-changing colorant accounts for 10-30%, the dispersant accounts for 1-15%, the other auxiliary agents account for 1-2%, and the rest is the carrier.
The invention has the advantages that the fiber has the thermochromic effect, the subsequent finishing of the textile can be carried out without great influence, and the textile can be endowed with more functions, but the problems are not solved.
Disclosure of Invention
The invention aims to solve the problems and provides a color master batch based on a nano microcapsule wrapping technology, which has high temperature sensing sensitivity.
The invention also aims to solve the problems and provide a preparation method of the color master batch based on the nano microcapsule wrapping technology, which has high temperature sensing sensitivity.
In order to achieve the purpose, the invention adopts the following technical scheme:
a temperature-sensing color-changing color master batch based on a nano microcapsule wrapping technology comprises polypropylene, a heat-conducting additive, a microcapsule toner and a nucleating agent, wherein the polypropylene, the heat-conducting additive, the microcapsule toner and the nucleating agent are mixed and then added into a double-screw extruder, and the temperature-sensing color-changing color master batch is obtained through extrusion granulation.
In the thermochromic color master batch based on the nano microcapsule wrapping technology, the heat-conducting additive comprises graphene nanofibers and aluminum oxide.
In the temperature-sensitive color-changing color master batch based on the nano microcapsule wrapping technology, the temperature-sensitive color-changing color master batch comprises, by mass, 60-80 parts of polypropylene, 15-25 parts of alumina, 5-10 parts of graphene nanofibers, 10-20 parts of microcapsule toner and 0.1-1 part of nucleating agent.
In the thermochromic color master batch based on the nano microcapsule wrapping technology, the thermochromic color master batch comprises 70 parts by mass of polypropylene, 20 parts by mass of alumina, 8 parts by mass of graphene nanofiber, 15 parts by mass of microcapsule toner and 0.5 part by mass of nucleating agent.
In the thermochromic color master batch based on the nano microcapsule wrapping technology, the nucleating agent comprises sodium benzoate.
In the thermochromic color master batch based on the nano microcapsule wrapping technology, the heat-conducting additive comprises graphene nanofibers and boron nitride.
In the thermochromic color master batch based on the nano microcapsule wrapping technology, the thermochromic color master batch further comprises 10-20 parts by mass of high-density polyethylene and 5-15 parts by mass of a compatilizer.
In the thermochromic color master batch based on the nano microcapsule wrapping technology, the thermochromic color master batch further comprises 15 parts by mass of high-density polyethylene and 10 parts by mass of a compatilizer.
In the thermochromic color master batch based on the nano microcapsule wrapping technology, the compatilizer comprises POE.
A preparation method of color master batch based on nano microcapsule wrapping technology comprises the following steps:
the method comprises the following steps: taking a plurality of weight of polypropylene, and placing the polypropylene in a forced air drying oven for forced air drying for 2-12h at 40-60 ℃ to obtain dried polypropylene;
step two: mixing high-density polyethylene, a compatilizer, a heat conduction additive, microcapsule toner, a nucleating agent and dried polypropylene in a mixer for 10-20min to obtain a premix;
step three: and adding the premix into a sectional type double-screw extruder, heating to melt and mix at 220-240 ℃, extruding and granulating after 30-60min, wherein the extrusion temperature is 230-250 ℃, the screw rotating speed is 250-350r/min, and the extruded sample strips are cooled in the air and then granulated to obtain the temperature-sensitive color-changing master batch.
Compared with the prior art, the invention has the advantages that:
1. according to the invention, a certain amount of heat-conducting additive is added into the polypropylene main material, so that the heat-conducting property of the prepared color master batch is improved, and the sensitivity of the microcapsule toner in the color master batch to temperature change is improved, namely the temperature sensitivity of the color master batch is improved.
2. The preparation process adopted by the invention is simple and reliable, convenient to operate, low in production cost and suitable for large-scale popularization and use.
Detailed Description
The present invention will be described in further detail with reference to specific embodiments.
Example 1
The embodiment provides a thermochromic color master batch based on a nano microcapsule wrapping technology, which comprises, by mass, 60 parts of polypropylene, 25 parts of alumina, 10 parts of graphene nanofiber, 20 parts of microcapsule toner, 1 part of sodium benzoate, 20 parts of high-density polyethylene and 15 parts of POE.
The microcapsule toner adopts a microcapsule technology, which is a technology of wrapping trace substances in a polymer film and is a micro-packaging technology for storing solid, liquid and gas. The microcapsule toner of the present invention may be commercially available or may be a microcapsule of the prior art, for example, a microcapsule described in the patent application having application No. 201610144413.6.
POE is POE plastic, is a thermoplastic elastomer which adopts metallocene catalyst to realize in-situ polymerization of ethylene and octene, and is characterized in that: (1) The soft chain crimp structure of octene and crystalline ethylene chain act as physical crosslinking points, which gives it both excellent toughness and good processability. (2) The POE plastic has no unsaturated double bond in the molecular structure and has excellent ageing resistance. (3) The POE plastic has narrow molecular weight distribution and good compatibility with polyolefin. (4) The good fluidity can improve the dispersion effect of the filler and simultaneously can improve the weld mark strength of the product.
Example 2
The embodiment provides a thermochromic color master batch based on a nano microcapsule wrapping technology, which comprises 80 parts by mass of polypropylene, 15 parts by mass of alumina, 5 parts by mass of graphene nanofiber, 10 parts by mass of microcapsule toner, 0.1 part by mass of sodium benzoate, 10 parts by mass of high-density polyethylene and 5 parts by mass of POE.
Example 3
The embodiment provides a thermochromic color master batch based on a nano microcapsule wrapping technology, which comprises 70 parts by mass of polypropylene, 20 parts by mass of alumina, 8 parts by mass of graphene nanofiber, 15 parts by mass of microcapsule toner, 0.5 part by mass of sodium benzoate, 15 parts by mass of high-density polyethylene and 10 parts by mass of POE.
Example 4
The embodiment provides a thermochromic color master batch based on a nano microcapsule wrapping technology, which comprises 70 parts by mass of polypropylene, 20 parts by mass of boron nitride, 8 parts by mass of graphene nanofiber, 15 parts by mass of microcapsule toner, 0.5 part by mass of sodium benzoate, 15 parts by mass of high-density polyethylene and 10 parts by mass of POE.
Example 5
The embodiment provides a preparation method of a thermochromic color master batch based on a nano microcapsule wrapping technology, which comprises the following steps:
the method comprises the following steps: taking a plurality of weight of polypropylene, and placing the polypropylene in a forced air drying oven for forced air drying for 2 hours at 40 ℃ to obtain dried polypropylene;
step two: mixing high-density polyethylene, a compatilizer, a heat conduction additive, microcapsule toner, a nucleating agent and dried polypropylene in a mixer for 10min to obtain a premix;
step three: and adding the premix into a sectional type double-screw extruder, heating, melting and mixing at 220 ℃, extruding and granulating after 30min, wherein the extrusion temperature is 230 ℃, the screw rotating speed is 250r/min, and the extruded sample strips are cooled in the air and then granulated to obtain the temperature-sensitive color-changing master batch.
Example 6
The embodiment provides a preparation method of a thermochromic color master batch based on a nano microcapsule wrapping technology, which comprises the following steps:
the method comprises the following steps: taking a plurality of weight of polypropylene, and placing the polypropylene in a forced air drying oven for forced air drying for 12 hours at the temperature of 60 ℃ to obtain dried polypropylene;
step two: mixing high-density polyethylene, a compatilizer, a heat conduction additive, microcapsule toner, a nucleating agent and dried polypropylene in a mixer for 20min to obtain a premix;
step three: and adding the premix into a sectional type double-screw extruder, heating to melt and mix at 240 ℃, extruding and granulating after 60min, wherein the extrusion temperature is 250 ℃, the screw rotating speed is 350r/min, and the extruded sample strips are cooled in the air and then granulated to obtain the temperature-sensitive color-changing master batch.
Example 7
The embodiment provides a preparation method of a thermochromic color master batch based on a nano microcapsule wrapping technology, which comprises the following steps:
the method comprises the following steps: taking a plurality of weight of polypropylene, and placing the polypropylene in a forced air drying oven for forced air drying at 50 ℃ for 7 hours to obtain dried polypropylene;
step two: mixing high-density polyethylene, a compatilizer, a heat conduction additive, microcapsule toner, a nucleating agent and dried polypropylene in a mixer for 15min to obtain a premix;
step three: and adding the premix into a sectional type double-screw extruder, heating, melting and mixing at 230 ℃, extruding and granulating after 45min, wherein the extrusion temperature is 240 ℃, the screw rotating speed is 300r/min, and the temperature-sensitive color-changing color master batch is obtained by cooling an extruded sample strip in the air and then granulating.
Comparative example 1
The comparative example provides a thermochromic color master batch which comprises, by mass, 70 parts of polypropylene, 20 parts of alumina, 15 parts of microcapsule toner, 0.5 part of sodium benzoate, 15 parts of high-density polyethylene and 10 parts of POE.
Comparative example 2
The comparative example provides a thermochromic color master batch which comprises, by mass, 70 parts of polypropylene, 8 parts of graphene nanofibers, 15 parts of microcapsule toner, 0.5 part of sodium benzoate, 15 parts of high-density polyethylene and 10 parts of POE.
Comparative example 3
The embodiment provides a thermochromic color master batch which comprises, by mass, 70 parts of polypropylene, 20 parts of alumina, 8 parts of graphene nanofibers, 15 parts of microcapsule toner and 0.5 part of sodium benzoate.
Comparative example 4
The embodiment provides a thermochromic color master batch, which comprises, by mass, 70 parts of polypropylene, 60 parts of alumina, 8 parts of graphene nanofibers, 15 parts of microcapsule toner, 0.5 part of sodium benzoate, 15 parts of high-density polyethylene and 10 parts of POE.
Comparative example 5
The embodiment provides a thermochromic color master batch, which comprises, by mass, 70 parts of polypropylene, 5 parts of alumina, 8 parts of graphene nanofibers, 15 parts of microcapsule toner, 0.5 part of sodium benzoate, 15 parts of high-density polyethylene and 10 parts of POE.
Comparative example 6
The embodiment provides a preparation method of a thermochromic color master batch, which comprises the following steps:
the method comprises the following steps: taking a plurality of weight of polypropylene, and placing the polypropylene in a forced air drying oven for forced air drying for 7 hours at 50 ℃ to obtain dried polypropylene;
step two: mixing the heat-conducting additive, the microcapsule toner, the nucleating agent and the dried polypropylene in a mixer for 15min to obtain a premix;
step three: and adding the premix into a sectional type double-screw extruder, heating at 230 ℃, melting and mixing, extruding and granulating after 45min, wherein the extrusion temperature is 240 ℃, the screw rotating speed is 300r/min, and the extruded sample strips are cooled in the air and then granulated to obtain the temperature-sensitive color-changing master batch.
Application example 1
Using the components of the thermochromic color masterbatch described in example 3, a color masterbatch 1 was prepared by the preparation method described in example 6;
a color master batch 2 was prepared by the preparation method described in example 6 using the components of the thermochromic color master batch described in example 4;
preparing a color master batch 3 by the preparation method described in example 6 from the components of the thermochromic color master batch described in comparative example 1;
using the components of the thermochromic color masterbatch described in comparative example 2, a color masterbatch 4 was prepared by the preparation method described in example 6;
preparing a color master batch 5 by using the components of the thermochromic color master batch recorded in the comparative example 3 and by using the preparation method recorded in the comparative example 6;
a color master batch 6 was prepared from the constituent components of the thermochromic color master batch described in comparative example 4 by the preparation method described in example 6;
a color master batch 7 was prepared from the constituent components of the thermochromic color master batch described in comparative example 5 by the preparation method described in example 6;
cutting the color master batches 1-7 into the same shape and size, placing the color master batches in the same experimental box, slowly heating at the heating rate of 0.5 ℃/min, observing the color change condition of the color master batches through an observation window of the experimental box, recording the initial color change temperature, and obtaining the results shown in the following table:
and (4) analyzing results: compared with the color master batch 1-5, the color master batch provided by the invention has higher temperature induction sensitivity, and achieves the expected purpose of the invention. Compared with the color master batch 1 and the color master batch 6, the graphene nanofiber is added, so that the effect of improving the heat-conducting property can be achieved to a lower extent by using the aluminum oxide, and the cost is saved.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (6)
1. A color master batch based on a nano microcapsule wrapping technology is characterized in that: the thermochromic color master batch is prepared by mixing polypropylene, a heat-conducting additive, a microcapsule toner and a nucleating agent, adding the mixture into a double-screw extruder, and carrying out extrusion granulation;
the thermally conductive additive includes graphene nanofibers and alumina;
the thermochromic color master batch comprises, by mass, 60-80 parts of polypropylene, 15-25 parts of alumina, 5-10 parts of graphene nanofibers, 10-20 parts of microcapsule toner and 0.1-1 part of nucleating agent;
the temperature-sensitive color-changing color master batch further comprises 10-20 parts by mass of high-density polyethylene and 5-15 parts by mass of compatilizer;
the compatibilizer includes POE.
2. Color masterbatch based on nano-microcapsule coating technology according to claim 1, characterized in that: the thermochromic color master batch comprises, by mass, 70 parts of polypropylene, 20 parts of alumina, 8 parts of graphene nanofibers, 15 parts of microcapsule toner and 0.5 part of nucleating agent.
3. Color masterbatch based on nano-microcapsule coating technology according to claim 1, characterized in that: the nucleating agent comprises sodium benzoate.
4. The color masterbatch based on nano microcapsule encapsulation technology according to claim 1, wherein: the thermally conductive additive includes graphene nanofibers and boron nitride.
5. The color masterbatch based on nano microcapsule encapsulation technology according to claim 1, wherein: the temperature-sensitive color-changing color master batch further comprises 15 parts by mass of high-density polyethylene and 10 parts by mass of compatilizer.
6. A process for the preparation of a masterbatch according to any one of claims 1 to 5, comprising the steps of:
the method comprises the following steps: taking a certain weight of polypropylene, and placing the polypropylene in a forced air drying oven for forced air drying at 40-60 ℃ for 2-12h to obtain dried polypropylene;
step two: mixing high-density polyethylene, a compatilizer, a heat conduction additive, microcapsule toner, a nucleating agent and dried polypropylene in a mixer for 10-20min to obtain a premix;
step three: and adding the premix into a sectional type double-screw extruder, heating to melt and mixing at 220-240 ℃, extruding and granulating after 30-60min, wherein the extrusion temperature is 230-250 ℃, the screw rotating speed is 250-350r/min, and the temperature-sensitive color-changing master batch is obtained by cooling an extruded sample strip in the air and then granulating.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105778277A (en) * | 2016-03-14 | 2016-07-20 | 浙江金彩新材料有限公司 | Thermochromic color master batch used for polypropylene fiber and preparation method of color master batch |
| CN107841049A (en) * | 2017-01-12 | 2018-03-27 | 金发科技股份有限公司 | A kind of polypropene composition of heat discoloration and its preparation method and application |
| CN109281080A (en) * | 2018-11-16 | 2019-01-29 | 江苏共创人造草坪股份有限公司 | A kind of reversible thermochromic chinampa and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105778277A (en) * | 2016-03-14 | 2016-07-20 | 浙江金彩新材料有限公司 | Thermochromic color master batch used for polypropylene fiber and preparation method of color master batch |
| CN107841049A (en) * | 2017-01-12 | 2018-03-27 | 金发科技股份有限公司 | A kind of polypropene composition of heat discoloration and its preparation method and application |
| CN109281080A (en) * | 2018-11-16 | 2019-01-29 | 江苏共创人造草坪股份有限公司 | A kind of reversible thermochromic chinampa and preparation method thereof |
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