CN112029175A - Nano calcium carbonate plastic master batch - Google Patents
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- CN112029175A CN112029175A CN202010955343.9A CN202010955343A CN112029175A CN 112029175 A CN112029175 A CN 112029175A CN 202010955343 A CN202010955343 A CN 202010955343A CN 112029175 A CN112029175 A CN 112029175A
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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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- C08J2323/02—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
- C08J2323/10—Homopolymers or copolymers of propene
- C08J2323/12—Polypropene
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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
- C08J2423/06—Polyethene
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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
- C08J2423/10—Homopolymers or copolymers of propene
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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
- C08J2423/26—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers modified by chemical after-treatment
- C08J2423/30—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers modified by chemical after-treatment by oxidation
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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
- C08K13/02—Organic and inorganic ingredients
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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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
- C08K5/098—Metal salts of carboxylic acids
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- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/13—Phenols; Phenolates
- C08K5/134—Phenols containing ester groups
- C08K5/1345—Carboxylic esters of phenolcarboxylic acids
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- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/34—Heterocyclic compounds having nitrogen in the ring
- C08K5/3412—Heterocyclic compounds having nitrogen in the ring having one nitrogen atom in the ring
- C08K5/3432—Six-membered rings
- C08K5/3435—Piperidines
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Abstract
The invention relates to the technical field of plastics, in particular to a nano calcium carbonate plastic master batch which is prepared from the following raw materials in parts by weight: 20-80 parts of nano calcium carbonate; 5-10 parts of carrier resin polypropylene; 10-20 parts of metallocene polyethylene; 10-20 parts of carbon black; 1-5 parts of a conductive synergist; 1-5 parts of a light stabilizer; 1-3 parts of an ultraviolet absorbent; and 5-15 parts of an auxiliary agent. Wherein, the carrier resin polypropylene is one or a mixture of two of homopolymerization type polypropylene or copolymerization type polypropylene; the auxiliary agent is prepared from an amphiphilic coupling agent, oxidized polyethylene wax and calcium stearate in a mass ratio of 3: 1: 1, preparing; the light stabilizer is 2,2,6, 6-tetramethyl-4-piperidine stearate; the ultraviolet absorbent is 3, 5-di-tert-butyl-4-hydroxyl-benzoic acid hexadecyl ester; the particle size of the carbon black is 20 nm. The invention realizes low migration and low precipitation of calcium carbonate plastic master batches by the matching use of the nano calcium carbonate, the carbon black, the conductive and conductive synergist, the light stabilizer, the ultraviolet absorbent and the like.
Description
Technical Field
The invention relates to the technical field of plastics, in particular to a nano calcium carbonate plastic master batch.
Background
The pearlized film is prepared by mixing polypropylene resin as raw material, calcium carbonate and pearlescent pigment, and stretching in two directions. Because of the mechanical foaming method, the specific gravity of the pearlized film is only about 0.7, and the specific gravity of the PP is about 0.9, so that flexible packaging enterprises are willing to select the pearlized film, and the pearlized film is low in price, good in decoration and excellent in performance. The BOPP pearlized film/CPP, BOPP pearlized film/PE and the like with a common composite structure have certain pearlized effect, and are often used for packaging cold drinks such as: ice cream, heat seal labels, confections, cookies, flavored snack packages, and the like.
In the production process of the existing pearlized film, plastic master batches used as raw materials of the pearlized film often have certain migration and precipitation risks, and the performance of the pearlized film is influenced, so that if the plastic master batches with low migration and precipitation risks can be provided, the pearlized film is particularly important in the production process of the pearlized film; in view of the above, the invention provides a nano calcium carbonate plastic master batch, which is used for solving the problem that the plastic master batch is easy to migrate and separate out.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provide the nano calcium carbonate plastic master batch.
The invention is realized by the following technical scheme:
a nano calcium carbonate plastic master batch is composed of the following raw materials in parts by weight:
20-80 parts of nano calcium carbonate
5-10 parts of carrier resin polypropylene
10-20 parts of metallocene polyethylene
10-20 parts of carbon black
1-5 parts of conductive synergist
1-5 parts of light stabilizer
1-3 parts of ultraviolet absorbent
5-15 parts of auxiliary agent
Wherein, the carrier resin polypropylene is one or a mixture of two of homopolymerization type polypropylene or copolymerization type polypropylene; the auxiliary agent is prepared from an amphiphilic coupling agent, oxidized polyethylene wax and calcium stearate in a mass ratio of 3: 1: 1, preparing; the light stabilizer is 2,2,6, 6-tetramethyl-4-piperidine stearate; the ultraviolet absorbent is 3, 5-di-tert-butyl-4-hydroxyl-benzoic acid hexadecyl ester; the particle size of the carbon black is 20 nm.
The molecular formula of the light stabilizer is as follows:
the molecular formula of the ultraviolet absorbent is:
the invention selects the nano calcium carbonate as the inorganic powder for preparing the master batch, thereby not only reducing the production cost, but also being beneficial to improving the mechanical property of a filling system and well playing the reinforcing role.
The carrier resin selected by the invention is mainly metallocene polyethylene, one or a mixture of two of homo-polypropylene or co-polypropylene is added in an auxiliary way for matching use, and the auxiliary agent is prepared by mixing an amphiphilic coupling agent with the functions of dispersing internal and external lubrication, oxidized polyethylene wax and calcium stearate.
The nano carbon black is added into the plastic master batch, so that the improvement of the performance of the plastic master batch is obviously influenced, the carbon black has high-efficiency conductive effect, and the surface resistance value of a polymer in the plastic master batch can be reduced to 10 by matching with the conductive synergist4-109So that the high molecular quality inspection of the carrier resin such as polypropylene, metallocene polyethylene and the like has good compatibility, and the product has good compatibilityThe prepared nano calcium carbonate plastic master batch is not easy to migrate and separate out;
meanwhile, the ultraviolet absorbent is a hindered phenol ultraviolet absorbent, a molecular chain segment of the ultraviolet absorbent is provided with a C16H33 polyolefin carbon chain, the molecular structural formula of the ultraviolet absorbent is very similar to that of a light stabilizer, and the ultraviolet absorbent and the light stabilizer have good synergistic effect when used together. The ultraviolet absorbent can effectively increase the compatibility of the light stabilizer and the polypropylene resin, reduce the processing viscosity and reduce the precipitation of the product;
further, the preferable weight fractions of the raw materials in the invention are:
40 parts of nano calcium carbonate
Carrier resin polypropylene 7 parts
Metallocene polyethylene 13 parts
15 portions of carbon black
3 parts of conductive synergist
Light stabilizer 3 parts
2 portions of ultraviolet absorbent
And 8 parts of an auxiliary agent.
The particle size of the nano calcium carbonate is not less than 15000 meshes.
The preparation method of the nano calcium carbonate plastic master batch comprises the following steps:
1) respectively weighing nano calcium carbonate, carrier resin polypropylene, metallocene polyethylene, carbon black, a light stabilizer, an ultraviolet absorbent and an auxiliary agent according to a ratio for later use;
2) adding 30 weight percent of auxiliary agent and nano calcium carbonate into a high-speed mixer together, firstly mixing for 3-5min under the condition of the rotation speed of 500-1000r/min, then mixing for 3-5min under the condition of the rotation speed of 1500-2500r/min, then conveying the mixture from the high-speed mixer into a co-rotating twin-screw extruder from a main feeder, simultaneously mixing metallocene polyethylene, carbon black, light stabilizer and ultraviolet absorbent and conveying the mixture into the co-rotating twin-screw extruder, controlling the heating temperature of a charging barrel of the co-rotating twin-screw extruder at 165-185 ℃, controlling the heating temperature of a die head to be 10 ℃ higher than the heating temperature of the charging barrel, and finally extruding and granulating the mixture into flaky plastic master batch.
Specifically, the nano calcium carbonate plastic master batch is used for manufacturing a pearlized film, and the preparation of the low-migration and low-precipitation calcium carbonate master batch is realized by matching and using the nano calcium carbonate, the carbon black, the conductive and conductive synergist, the light stabilizer, the ultraviolet absorbent and the like.
Has the advantages that: the proportioning range and preparation parameters of the raw materials of the nano calcium carbonate plastic master batch are obtained by a large amount of theoretical analysis and repeated experiments. The invention has the advantages that the low migration and low precipitation of the calcium carbonate plastic master batch are realized by the matching use of the nano calcium carbonate, the carbon black, the conductive and conductive synergist, the light stabilizer, the ultraviolet absorbent and the like.
Detailed Description
Example 1: each portion is 1kg
A nano calcium carbonate plastic master batch is composed of the following raw materials in parts by weight:
40kg of nano calcium carbonate
Carrier resin Polypropylene 7kg
13kg of metallocene polyethylene
15kg of carbon black
3kg of conductive synergist
Light stabilizer 3kg
Ultraviolet absorber 2kg
And 8kg of auxiliary agent.
Wherein the carrier resin is homopolymerized polypropylene; the auxiliary agent is prepared from an amphiphilic coupling agent, oxidized polyethylene wax and calcium stearate in a mass ratio of 3: 1: 1, mixing and preparing.
The preparation method of the nano calcium carbonate plastic master batch comprises the following steps:
1) respectively weighing nano calcium carbonate, carrier resin polypropylene, metallocene polyethylene, carbon black, a light stabilizer, an ultraviolet absorbent and an auxiliary agent according to a ratio for later use;
2) adding 30 weight percent of auxiliary agent and nano calcium carbonate into a high-speed mixer together, firstly mixing for 3-5min under the condition of the rotation speed of 500-1000r/min, then mixing for 3-5min under the condition of the rotation speed of 1500-2500r/min, then conveying the mixture from the high-speed mixer into a co-rotating twin-screw extruder from a main feeder, simultaneously mixing metallocene polyethylene, carbon black, light stabilizer and ultraviolet absorbent and conveying the mixture into the co-rotating twin-screw extruder, controlling the heating temperature of a charging barrel of the co-rotating twin-screw extruder at 165-185 ℃, controlling the heating temperature of a die head to be 10 ℃ higher than the heating temperature of the charging barrel, and finally extruding and granulating the mixture into flaky plastic master batch.
Example 2: each portion is 1g
A nano calcium carbonate plastic master batch is composed of the following raw materials in parts by weight:
nano calcium carbonate 80g
Carrier resin Polypropylene 10g
Metallocene polyethylene 20g
Carbon Black 20g
Conductive synergist 5g
Light stabilizer 5g
Ultraviolet absorber 3g
Auxiliary agent 15g
Wherein the carrier resin is homopolymerized polypropylene; the auxiliary agent is prepared from an amphiphilic coupling agent, oxidized polyethylene wax and calcium stearate in a mass ratio of 3: 1: 1, mixing and preparing.
The preparation method of the nano calcium carbonate plastic master batch comprises the following steps:
1) respectively weighing nano calcium carbonate, carrier resin polypropylene, metallocene polyethylene, carbon black, a light stabilizer, an ultraviolet absorbent and an auxiliary agent according to a ratio for later use;
2) adding 30 weight percent of auxiliary agent and nano calcium carbonate into a high-speed mixer together, firstly mixing for 3-5min under the condition of the rotation speed of 500-1000r/min, then mixing for 3-5min under the condition of the rotation speed of 1500-2500r/min, then conveying the mixture from the high-speed mixer into a co-rotating twin-screw extruder from a main feeder, simultaneously mixing metallocene polyethylene, carbon black, light stabilizer and ultraviolet absorbent and conveying the mixture into the co-rotating twin-screw extruder, controlling the heating temperature of a charging barrel of the co-rotating twin-screw extruder at 165-185 ℃, controlling the heating temperature of a die head to be 10 ℃ higher than the heating temperature of the charging barrel, and finally extruding and granulating the mixture into flaky plastic master batch.
Control group 1 (existing conventional nano calcium carbonate plastic master batch): each portion is 1kg
A nano calcium carbonate plastic master batch is composed of the following raw materials in parts by weight:
40kg of nano calcium carbonate
Micron calcium carbonate 60kg
13kg of metallocene polyethylene
Carrier resin Polypropylene 7kg
Auxiliary agent 8kg
Wherein the carrier resin is homopolymerized polypropylene; the auxiliary agent is prepared from an amphiphilic coupling agent, oxidized polyethylene wax and calcium stearate in a mass ratio of 3: 1: 1, mixing and preparing.
The preparation method of the master batch comprises the following steps:
1) respectively weighing nano calcium carbonate, micron calcium carbonate, metallocene polyethylene, carrier resin and auxiliary agent according to the proportion for later use;
2) adding 31 percent of the total weight of the auxiliary agent and the nano calcium carbonate into a high-speed mixer, mixing for 4min at the rotating speed of 1000r/min, then mixing for 3min at the rotating speed of 2300r/min, then conveying the mixture discharged from the high-speed mixer into a co-rotating double-screw extruder from a main feeder, simultaneously mixing the metallocene polyethylene and the carrier resin, conveying the mixture into the co-rotating double-screw extruder from a side feeder, controlling the heating temperature of a charging barrel of the co-rotating double-screw extruder at 185 ℃, controlling the heating temperature of a die head at 195 ℃, and finally extruding and granulating to obtain a flaky semi-finished product;
3) adding the micron calcium carbonate and the rest of the auxiliary agents into a high-speed mixer, mixing for 5min under the condition of the rotating speed of 800r/min, then mixing for 10min under the condition of the rotating speed of 1500r/min, then respectively conveying the mixture discharged from the high-speed mixer and the semi-finished product obtained in the step 2) into a co-rotating double-screw extruder from a main feeder and a side feeder, controlling the heating temperature of a charging barrel of the co-rotating double-screw extruder at 185 ℃, controlling the heating temperature of a die head at 195 ℃, and finally extruding and granulating to obtain the finished product.
Control group 2 (existing conventional nano calcium carbonate plastic master batch): each portion is 1g
A nano calcium carbonate plastic master batch is composed of the following raw materials in parts by weight:
nano calcium carbonate 80g
Micron calcium carbonate 60g
Metallocene polyethylene 20g
Carrier resin Polypropylene 10g
Auxiliary agent 15g
Wherein the carrier resin is homopolymerized polypropylene; the auxiliary agent is prepared from an amphiphilic coupling agent, oxidized polyethylene wax and calcium stearate in a mass ratio of 3: 1: 1, mixing and preparing.
The preparation method of the master batch comprises the following steps:
1) respectively weighing nano calcium carbonate, micron calcium carbonate, metallocene polyethylene, carrier resin and auxiliary agent according to the proportion for later use;
2) adding 31 percent of the total weight of the auxiliary agent and the nano calcium carbonate into a high-speed mixer, mixing for 4min at the rotating speed of 1000r/min, then mixing for 3min at the rotating speed of 2300r/min, then conveying the mixture discharged from the high-speed mixer into a co-rotating double-screw extruder from a main feeder, simultaneously mixing the metallocene polyethylene and the carrier resin, conveying the mixture into the co-rotating double-screw extruder from a side feeder, controlling the heating temperature of a charging barrel of the co-rotating double-screw extruder at 185 ℃, controlling the heating temperature of a die head at 195 ℃, and finally extruding and granulating to obtain a flaky semi-finished product;
3) adding the micron calcium carbonate and the rest of the auxiliary agents into a high-speed mixer, mixing for 5min under the condition of the rotating speed of 800r/min, then mixing for 10min under the condition of the rotating speed of 1500r/min, then respectively conveying the mixture discharged from the high-speed mixer and the semi-finished product obtained in the step 2) into a co-rotating double-screw extruder from a main feeder and a side feeder, controlling the heating temperature of a charging barrel of the co-rotating double-screw extruder at 185 ℃, controlling the heating temperature of a die head at 195 ℃, and finally extruding and granulating to obtain the finished product.
Through four groups of experiments, the final related results are as follows:
| sample (I) | Change in appearance |
| a | The granules are dry, have no agglomeration and no precipitation |
| b | The granules are dry, have no agglomeration and no precipitation |
| c | Sticky particles with obvious precipitation |
| d | Sticky particles with obvious precipitation |
The following conclusions can be drawn from the above-described embodiments:
compared with the conventional nano calcium carbonate plastic master batch in the prior art, the nano calcium carbonate plastic master batch realizes low migration and low precipitation of the calcium carbonate plastic master batch by the matched use of the nano calcium carbonate, the carbon black, the conductive and conductive synergist, the light stabilizer, the ultraviolet absorbent and the like, and has obvious effect.
Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes and modifications can be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (5)
1. The nano calcium carbonate plastic master batch is characterized by comprising the following raw materials in parts by weight:
20-80 parts of nano calcium carbonate
5-10 parts of carrier resin polypropylene
10-20 parts of metallocene polyethylene
10-20 parts of carbon black
1-5 parts of conductive synergist
1-5 parts of light stabilizer
1-3 parts of ultraviolet absorbent
5-15 parts of auxiliary agent
Wherein, the carrier resin polypropylene is one or a mixture of two of homopolymerization type polypropylene or copolymerization type polypropylene; the auxiliary agent is prepared from an amphiphilic coupling agent, oxidized polyethylene wax and calcium stearate in a mass ratio of 3: 1: 1, preparing; the light stabilizer is 2,2,6, 6-tetramethyl-4-piperidine stearate; the ultraviolet absorbent is 3, 5-di-tert-butyl-4-hydroxyl-benzoic acid hexadecyl ester; the particle size of the carbon black is 20 nm.
2. The nano calcium carbonate plastic master batch according to claim 1, which is prepared from the following raw materials in parts by weight:
40 parts of nano calcium carbonate
Carrier resin polypropylene 7 parts
Metallocene polyethylene 13 parts
15 portions of carbon black
3 parts of conductive synergist
Light stabilizer 3 parts
2 portions of ultraviolet absorbent
And 8 parts of an auxiliary agent.
3. The nano calcium carbonate plastic masterbatch according to claim 1 or 2, characterized in that: the grain size of the nano calcium carbonate is more than or equal to 15000 meshes.
4. The plastic masterbatch of nano calcium carbonate according to claim 1 or 2, wherein the preparation method comprises the following steps:
1) respectively weighing nano calcium carbonate, carrier resin polypropylene, metallocene polyethylene, carbon black, a light stabilizer, an ultraviolet absorbent and an auxiliary agent according to a ratio for later use;
2) adding 30 weight percent of auxiliary agent and nano calcium carbonate into a high-speed mixer together, firstly mixing for 3-5min under the condition of the rotation speed of 500-1000r/min, then mixing for 3-5min under the condition of the rotation speed of 1500-2500r/min, then conveying the mixture from the high-speed mixer into a co-rotating twin-screw extruder from a main feeder, simultaneously mixing metallocene polyethylene, carbon black, light stabilizer and ultraviolet absorbent and conveying the mixture into the co-rotating twin-screw extruder, controlling the heating temperature of a charging barrel of the co-rotating twin-screw extruder at 165-185 ℃, controlling the heating temperature of a die head to be 10 ℃ higher than the heating temperature of the charging barrel, and finally extruding and granulating the mixture into flaky plastic master batch.
5. The nano calcium carbonate plastic masterbatch according to claim 1 or 2, characterized in that: the nano calcium carbonate plastic master batch is used for manufacturing a pearlized film.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112694760A (en) * | 2020-12-22 | 2021-04-23 | 马瑞蕾 | Nano calcium carbonate plastic master batch |
| CN112778628A (en) * | 2020-12-25 | 2021-05-11 | 上海日之升科技有限公司 | Outdoor aging-resistant environment-friendly flame-retardant polypropylene composite material and preparation method thereof |
| CN114456506A (en) * | 2022-03-11 | 2022-05-10 | 吴章舟 | Modifier for plastics and preparation method thereof |
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| CN103571019A (en) * | 2013-11-19 | 2014-02-12 | 芮城新泰纳米材料有限公司 | Nanometer calcium carbonate composite concentrated master batch and preparation method thereof |
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2020
- 2020-09-11 CN CN202010955343.9A patent/CN112029175A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103571019A (en) * | 2013-11-19 | 2014-02-12 | 芮城新泰纳米材料有限公司 | Nanometer calcium carbonate composite concentrated master batch and preparation method thereof |
Non-Patent Citations (1)
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| 赵素芬，吕艳娜著: "《软包装生产技术》", 31 July 2012 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112694760A (en) * | 2020-12-22 | 2021-04-23 | 马瑞蕾 | Nano calcium carbonate plastic master batch |
| CN112778628A (en) * | 2020-12-25 | 2021-05-11 | 上海日之升科技有限公司 | Outdoor aging-resistant environment-friendly flame-retardant polypropylene composite material and preparation method thereof |
| CN112778628B (en) * | 2020-12-25 | 2023-04-21 | 上海日之升科技有限公司 | Outdoor aging-resistant environment-friendly flame-retardant polypropylene composite material and preparation method thereof |
| CN114456506A (en) * | 2022-03-11 | 2022-05-10 | 吴章舟 | Modifier for plastics and preparation method thereof |
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Application publication date: 20201204 |