CN112940397A - Hydrophobic additive, hydrophobic composite material, preparation method and application thereof - Google Patents
Hydrophobic additive, hydrophobic composite material, preparation method and application thereof Download PDFInfo
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- CN112940397A CN112940397A CN202110385383.9A CN202110385383A CN112940397A CN 112940397 A CN112940397 A CN 112940397A CN 202110385383 A CN202110385383 A CN 202110385383A CN 112940397 A CN112940397 A CN 112940397A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
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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
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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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
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
Abstract
The invention provides a hydrophobic additive, a hydrophobic composite material, a preparation method and an application thereof, wherein the hydrophobic additive comprises 70-98 parts of an additive body and 2-30 parts of a hydrophobic additive, the additive body is polypropylene and/or polyethylene, and the hydrophobic additive is one or more of calcium stearate, zinc stearate, erucamide, oleamide and stearamide; the hydrophobic composite material consists of 85-98 parts of a composite material body, 1-15 parts of a functional additive and 1-15 parts of a hydrophobic additive, wherein the composite material body is polypropylene, and the functional additive is one or more of calcium carbonate, talcum powder and barium sulfate. The contact angle of the hydrophobic composite material prepared by the hydrophobic additive is more than or equal to 120 degrees, and the volume error of the plastic product which is prepared by injection molding of the hydrophobic composite material and used for volume functions such as measurement, absorption, transfer and the like is greatly reduced.
Description
Technical Field
The invention relates to the technical field of special functional polymer materials and preparation thereof, and more particularly relates to a hydrophobic additive, a hydrophobic composite material, and a preparation method and application thereof.
Background
Polypropylene (PP) is thermoplastic synthetic resin with excellent performance, is colorless semitransparent thermoplastic light general-purpose plastic, has the characteristics of excellent chemical resistance, heat resistance, electric insulation, high strength, high wear resistance, excellent processability and the like, simultaneously has the excellent characteristics of light weight, low cost, simple and convenient processing and the like, and is rapidly and widely applied to various fields of machinery, automobiles, electronic and electric appliances, buildings, textiles, medicines, packaging, agriculture, forestry, fishery, food industry and the like.
In recent years, polypropylene resin materials are gradually replacing wooden materials and metal materials and are widely used in many fields.
However, polypropylene resin materials have poor impact resistance at low temperatures, large heat distortion at high temperatures, poor surface decoration, and have a large gap between their properties in terms of hydrophobicity and hydrophilicity and the demands of practical applications. Therefore, how to modify polypropylene materials to meet the practical application requirements of polypropylene in special environments is a key technical problem to be solved in the research of polypropylene resin materials.
Disclosure of Invention
The invention aims to provide a hydrophobic additive, a hydrophobic composite material, and a preparation method and application thereof.
The invention adopts the following technical scheme:
a hydrophobic additive is composed of additive body 70-98 parts and hydrophobic additive 2-30 parts.
Specifically, in the above technical solution, the additive body is polypropylene and/or polyethylene.
Specifically, in the above technical solution, the hydrophobic additive is one or more of calcium stearate, zinc stearate, erucamide, oleamide, and stearamide.
Further, in the above technical solution, the additive body is a mixture of polypropylene and polyethylene.
Preferably, in the above technical solution, the additive body is a mixture of additives in a mass ratio of 0.95-1.48: 1 of a mixture of polypropylene and polyethylene.
In detail, by mixing polypropylene and polyethylene in a certain proportion, the hardness can be improved, the melting point can be reduced, and the polypropylene and polyethylene have better low-temperature performance and transparency.
Further, in the above technical solution, the hydrophobic additive is a mixture of erucamide and oleamide.
Preferably, in the above technical solution, the hydrophobic additive is a mixture of a hydrophobic additive and a hydrophobic additive in a mass ratio of 0.85-1.18: 1 erucamide and oleamide.
In detail, through mixing erucamide and oleamide according to the proportion, the mixture can be used as an anti-bonding agent, a release agent, a lubricant and an antistatic agent, the oleamide can also effectively improve the injection molding and release effects of the polypropylene-polyethylene material, the surface of the prepared finished product is smoother, and the erucamide can also effectively improve the surface property of the polypropylene-polyethylene material.
In a preferred embodiment of the present invention, the hydrophobic additive comprises the following raw materials in parts by weight:
still further, the present invention also provides a preparation method of the above hydrophobic additive, specifically comprising:
weighing and preparing the required raw materials according to the mass ratio, uniformly mixing the raw materials in a high-speed mixer, discharging, stirring and mixing for 5-15min at the temperature of 80-140 ℃, and finally granulating at the temperature of 120-170 ℃.
In detail, in the above technical scheme, the mixing time of the raw materials in the high-speed mixer is 3-5 min.
In detail, in the above technical scheme, the granulation is carried out by using a twin-screw granulator.
The invention also provides a hydrophobic composite material, which consists of 85-98 parts of a composite material body, 1-15 parts of a functional additive and 1-15 parts of the hydrophobic additive.
Specifically, in the above technical scheme, the composite material body is polypropylene, and the functional additive is one or more of calcium carbonate, talc powder and barium sulfate.
Further, in the above technical scheme, the functional additive is a mixture of calcium carbonate and talc powder.
Preferably, in the above technical solution, the functional additive is a mixture of functional additives in a mass ratio of 1: 1.28-1.64 calcium carbonate and talc.
In a preferred embodiment of the present invention, the hydrophobic composite material comprises the following raw materials in parts by weight:
specifically, in the technical scheme, the hydrophobic additive is prepared from the following raw materials in parts by weight:
in one embodiment of the invention, the hydrophobic composite material is prepared from the following raw materials in parts by weight:
specifically, in the technical scheme, the hydrophobic additive is prepared from the following raw materials in parts by weight:
still further, the invention also provides a preparation method of the hydrophobic composite material, which specifically comprises the following steps:
weighing and preparing the required raw materials according to the mass ratio, uniformly mixing the raw materials in a high-speed mixer, discharging, stirring and mixing for 5-15min at the temperature of 80-140 ℃, and finally granulating at the temperature of 120-170 ℃.
The invention also provides the application of the hydrophobic composite material in preparing volume functional products.
Compared with the prior art, the invention has the beneficial effects that:
1. the contact angle of the hydrophobic composite material prepared by the hydrophobic additive provided by the invention is more than or equal to 120 degrees;
2. the volume error of the plastic product with the volume functions of measurement, absorption, transfer and the like, which is prepared by injection molding of the hydrophobic composite material provided by the invention, is greatly reduced, and the volume error of a 1000ul pipette tip is within 2%;
3. the preparation method of the hydrophobic composite material provided by the invention is simple, the conditions are easy to control, the product performance is excellent and easy to control, and the actual application prospect is wide.
Detailed Description
The present invention is further described in detail below with reference to specific examples so that those skilled in the art can more clearly understand the present invention.
The following examples are given for the purpose of illustration only and are not intended to limit the scope of the invention.
All other embodiments obtained by a person skilled in the art based on the specific embodiments of the present invention without any inventive step are within the scope of the present invention.
In the examples of the present invention, all the raw material components are commercially available products well known to those skilled in the art unless otherwise specified.
In the examples of the present invention, unless otherwise specified, all technical means used are conventional means well known to those skilled in the art.
Example 1
The embodiment of the invention provides a preparation method of a hydrophobic composite material.
1. Composition of raw materials
Wherein:
the hydrophobic additive is prepared from the following raw materials in parts by weight:
the preparation method of the hydrophobic additive comprises the following steps:
weighing the raw materials in a mass ratio, uniformly mixing in a high-speed mixer, discharging, stirring and mixing at 120 ℃ for 9min, and finally granulating at 160 ℃.
2. Preparation method
Weighing and preparing the required raw materials according to the mass ratio, uniformly mixing the raw materials in a high-speed mixer, discharging, stirring and mixing the raw materials for 9min at the temperature of 120 ℃, and finally granulating the raw materials at the temperature of 150 ℃ to obtain the feed.
Example 2
The embodiment of the invention provides a preparation method of a hydrophobic composite material.
1. Composition of raw materials
The composition is prepared from the following raw materials in parts by weight:
wherein:
the hydrophobic additive is prepared from the following raw materials in parts by weight:
weighing and preparing the required raw materials according to the mass ratio, uniformly mixing the raw materials in a high-speed mixer, discharging, stirring and mixing the raw materials for 15min at the temperature of 90 ℃, and finally granulating the raw materials at the temperature of 125 ℃ to obtain the feed.
2. Preparation method
Weighing and preparing the required raw materials according to the mass ratio, uniformly mixing the raw materials in a high-speed mixer, discharging, stirring and mixing the raw materials for 6min at the temperature of 140 ℃, and finally granulating the raw materials at the temperature of 170 ℃ to obtain the feed.
Example 3
The embodiment of the invention provides a preparation method of a hydrophobic composite material.
1. Composition of raw materials
Wherein:
the hydrophobic additive is prepared from the following raw materials in parts by weight:
the preparation method of the hydrophobic additive comprises the following steps:
weighing and preparing the required raw materials according to the mass ratio, uniformly mixing the raw materials in a high-speed mixer, discharging, stirring and mixing the raw materials for 6min at the temperature of 140 ℃, and finally granulating the raw materials at the temperature of 170 ℃ to obtain the feed.
2. Preparation method
Weighing and preparing the required raw materials according to the mass ratio, uniformly mixing the raw materials in a high-speed mixer, discharging, stirring and mixing the raw materials for 15min at the temperature of 90 ℃, and finally granulating the raw materials at the temperature of 120 ℃ to obtain the feed.
Comparative example 1
The invention provides a preparation method of a hydrophobic composite material.
1. Composition of raw materials
Wherein:
the hydrophobic additive is prepared from the following raw materials in parts by weight:
90 parts of polypropylene
10 parts of magnesium stearate;
the preparation method of the hydrophobic additive comprises the following steps:
weighing the raw materials in a mass ratio, uniformly mixing in a high-speed mixer, discharging, stirring and mixing at 120 ℃ for 9min, and finally granulating at 160 ℃.
2. Preparation method
Weighing and preparing the required raw materials according to the mass ratio, uniformly mixing the raw materials in a high-speed mixer, discharging, stirring and mixing the raw materials for 9min at the temperature of 120 ℃, and finally granulating the raw materials at the temperature of 150 ℃ to obtain the feed.
The contact angles of the hydrophobic composites prepared in examples and comparative examples were respectively tested, wherein the contact angles of the hydrophobic composites prepared in examples 1 to 3 were 124.6 °, 128.5 ° and 121.3 °, respectively, and the contact angle of the hydrophobic composite prepared in comparative example 1 was 112.8 °.
Method for measuring error of experimental example
Preparing gun heads with different specifications by using the hydrophobic composite materials prepared in the examples 1-3 and the comparative example 1 respectively, selecting commercially available gun heads, weighing the gun heads respectively, sucking a quantitative toluidine blue saturated solution by using a liquid transfer gun, extruding the toluidine blue saturated solution, taking down the gun heads, weighing the sucked gun heads, calculating and measuring errors, performing five parallel tests on the measurement processes after the gun heads are prepared by using the different hydrophobic composite materials, and averaging the results as shown in the following table 1.
TABLE 1 measurement error measurement of gun tips
The results in table 1 are analyzed, and it can be seen that the contact angle of the hydrophobic composite material prepared from the hydrophobic additive provided in the embodiment of the present invention is not less than 120 °, and the volume error of the plastic product for volume functions such as measurement, absorption, transfer, etc. prepared by injection molding using the hydrophobic composite material is greatly reduced, and the volume error is significantly lower than that of the conventional gun head in the market.
It should be noted that the above embodiments are only for further illustration and description of the technical solutions of the present invention, and are not further limitations of the technical solutions of the present invention, and the modifications made by those skilled in the art without outstanding substantive features and significant advances are all within the protection scope of the present invention.
Claims (10)
1. A hydrophobic additive, characterized in that,
consists of 70-98 parts of additive body and 2-30 parts of hydrophobic additive;
the additive body is polypropylene and/or polyethylene, and the hydrophobic additive is one or more of calcium stearate, zinc stearate, erucamide, oleamide and stearamide.
2. Hydrophobic additive according to claim 1,
the additive body is a mixture of polypropylene and polyethylene, and the mass ratio of the polypropylene to the polyethylene is preferably 0.95-1.48: 1 of a mixture of polypropylene and polyethylene;
and/or the hydrophobic additive is a mixture of erucamide and oleamide, and the mass ratio of the erucamide to the oleamide is preferably 0.85-1.18: 1 erucamide and oleamide.
3. Hydrophobic additive according to claim 1 or 2,
the feed comprises the following raw materials in parts by weight:
4. a process for the preparation of a hydrophobic additive according to any of the claims 1-3,
comprises weighing the required raw materials according to the mass ratio, uniformly mixing in a high-speed mixer, discharging, stirring and mixing at 80-140 ℃ for 5-15min, and finally granulating at 120-170 ℃.
5. A hydrophobic composite, characterized in that,
consists of 85-98 parts of composite material body, 1-15 parts of functional additive and 1-15 parts of hydrophobic additive according to any one of claims 1-3;
the composite material body is polypropylene, and the functional additive is one or more of calcium carbonate, talcum powder and barium sulfate.
6. The hydrophobic composite of claim 5,
the functional additive is a mixture of calcium carbonate and talcum powder, and preferably the mass ratio is 1: 1.28-1.64 calcium carbonate and talc.
7. The hydrophobic composite according to claim 5 or 6,
the feed comprises the following raw materials in parts by weight:
wherein:
the hydrophobic additive is prepared from the following raw materials in parts by weight:
8. the hydrophobic composite of claim 7,
the composition is prepared from the following raw materials in parts by weight:
wherein:
the hydrophobic additive is prepared from the following raw materials in parts by weight:
9. a method of preparing a hydrophobic composite according to any of claims 5 to 8,
comprises weighing the required raw materials according to the mass ratio, uniformly mixing in a high-speed mixer, discharging, stirring and mixing at 80-140 ℃ for 5-15min, and finally granulating at 120-170 ℃.
10. Use of the hydrophobic composite of any one of claims 5 to 8 in the manufacture of a volumetrically functional article.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110385383.9A CN112940397A (en) | 2021-04-09 | 2021-04-09 | Hydrophobic additive, hydrophobic composite material, preparation method and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110385383.9A CN112940397A (en) | 2021-04-09 | 2021-04-09 | Hydrophobic additive, hydrophobic composite material, preparation method and application thereof |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4124441A1 (en) * | 1991-07-20 | 1993-01-21 | Zentralinstitut Fuer Anorganis | Polymer-modified glass fibre reinforced cement-concrete composite - comprising organic polyacrylate-based polymer, glass fibres, hydrophobic additive, cement-bonded matrix and additive |
| CN101469094A (en) * | 2007-12-28 | 2009-07-01 | 上海普利特复合材料股份有限公司 | Novel low odor polypropylene composite material and preparation thereof |
| CN104117396A (en) * | 2013-04-26 | 2014-10-29 | 中国科学院化学研究所 | Super-hydrophobic pipette gun head and preparation method thereof |
| CN207345183U (en) * | 2017-09-11 | 2018-05-11 | 新纶复合材料科技（常州）有限公司 | A kind of outer layer has the aluminum-plastic composite membrane of super hydrophobic functional |
| CN109749101A (en) * | 2019-02-12 | 2019-05-14 | 优矿塑新材料科技(芜湖)有限公司 | A kind of hydrophobic type polyethylene master batch and its application on plastic greenhouse film |
| CN112441593A (en) * | 2020-12-15 | 2021-03-05 | 山东海螺型材有限责任公司 | Preparation method of surface hydrophobic modified anhydrous nano zinc borate |
-
2021
- 2021-04-09 CN CN202110385383.9A patent/CN112940397A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4124441A1 (en) * | 1991-07-20 | 1993-01-21 | Zentralinstitut Fuer Anorganis | Polymer-modified glass fibre reinforced cement-concrete composite - comprising organic polyacrylate-based polymer, glass fibres, hydrophobic additive, cement-bonded matrix and additive |
| CN101469094A (en) * | 2007-12-28 | 2009-07-01 | 上海普利特复合材料股份有限公司 | Novel low odor polypropylene composite material and preparation thereof |
| CN104117396A (en) * | 2013-04-26 | 2014-10-29 | 中国科学院化学研究所 | Super-hydrophobic pipette gun head and preparation method thereof |
| CN207345183U (en) * | 2017-09-11 | 2018-05-11 | 新纶复合材料科技（常州）有限公司 | A kind of outer layer has the aluminum-plastic composite membrane of super hydrophobic functional |
| CN109749101A (en) * | 2019-02-12 | 2019-05-14 | 优矿塑新材料科技(芜湖)有限公司 | A kind of hydrophobic type polyethylene master batch and its application on plastic greenhouse film |
| CN112441593A (en) * | 2020-12-15 | 2021-03-05 | 山东海螺型材有限责任公司 | Preparation method of surface hydrophobic modified anhydrous nano zinc borate |
Non-Patent Citations (1)
| Title |
|---|
| 李玉兰, 中国医药科技出版社 * |
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