CN110698748A - Modified polyethylene waterproof geomembrane and preparation method thereof - Google Patents
Modified polyethylene waterproof geomembrane and preparation method thereof Download PDFInfo
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- CN110698748A CN110698748A CN201911034991.4A CN201911034991A CN110698748A CN 110698748 A CN110698748 A CN 110698748A CN 201911034991 A CN201911034991 A CN 201911034991A CN 110698748 A CN110698748 A CN 110698748A
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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
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
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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
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- 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
- C08J2323/04—Homopolymers or copolymers of ethene
- C08J2323/06—Polyethene
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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
- C08J2489/00—Characterised by the use of proteins; Derivatives thereof
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
- C08K3/042—Graphene or derivatives, e.g. graphene oxides
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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
- C08K3/34—Silicon-containing compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
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- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a modified polyethylene waterproof geomembrane which is prepared from the following raw materials in parts by weight: 40-50 parts of polyethylene, 3-5 parts of graphene, 5-10 parts of feldspar, 50-60 parts of lotus leaves, 10-15 parts of vegetable protein, 2-3 parts of compatilizer, 0.3-0.5 part of ultraviolet absorbent, 0.2-0.4 part of antioxidant, 0.1-0.2 part of auxiliary antioxidant and 1-3 parts of defoaming agent, and a preparation method of the modified polyethylene waterproof geomembrane comprises the following steps: mixing the basic materials, mixing the paste, comprehensively mixing, and then feeding into an extruder for molding. Compared with the prior art, the invention has the advantages that: the addition of the graphene and the feldspar can effectively increase the wear resistance and mechanical strength of a finished product, the addition of the ultraviolet absorbent can increase the solar irradiation strength, the addition of the lotus leaves and the vegetable protein is favorable for improving the hydrophobicity of the finished product and enhancing the waterproof performance, and the performance of the product can be ensured by extruding the mixed material by an extruder in a temperature gradient manner.
Description
Technical Field
The invention relates to the technical field of plastic film preparation, in particular to a modified polyethylene waterproof geomembrane and a preparation method thereof.
Background
Geomembrane belongs to one of products of plastic film preparation technology. Geomembranes are known as "fourth building materials" following steel, cement, wood. The geomembrane is mainly used for projects such as highway, river, lake and sea embankment revetment, water conservancy channel, culvert and the like, can prevent the damage of leakage to the foundation, can protect reservoir water and channel water from loss and loss, and can play the roles of isolation, load balancing and stability.
The geomembranes sold in the market at present are various in types and good in market application effect, but the problems of poor waterproof performance, low abrasion resistance and mechanical strength, complex production direct seeding process, high temperature required for preparation, high energy consumption and the like of the polyethylene geomembrane still exist in practical application.
Disclosure of Invention
The invention aims to overcome the technical defects and provides a modified polyethylene waterproof geomembrane which is prepared by controlling the temperature within 155 ℃ and has stronger hydrophobicity, good wear resistance and mechanical strength and a preparation method thereof.
In order to solve the technical problems, the technical scheme provided by the invention is as follows: the modified polyethylene waterproof geomembrane is prepared from the following raw materials in parts by weight: 40-50 parts of polyethylene, 3-5 parts of graphene, 5-10 parts of feldspar, 50-60 parts of lotus leaves, 10-15 parts of vegetable protein, 2-3 parts of compatilizer, 0.3-0.5 part of ultraviolet absorber, 0.2-0.4 part of antioxidant, 0.1-0.2 part of auxiliary antioxidant and 1-3 parts of defoaming agent.
The improved food is prepared from the following raw materials in parts by weight: 45 parts of polyethylene, 4 parts of graphene, 8 parts of feldspar, 55 parts of lotus leaves, 13 parts of vegetable protein, 2.5 parts of compatilizer, 0.4 part of ultraviolet absorber, 0.3 part of antioxidant, 0.15 part of auxiliary antioxidant and 2 parts of defoaming agent.
As an improvement, the mass fraction of iron in the feldspar is 0.7-0.9%.
A preparation method of a modified polyethylene waterproof geomembrane comprises the following steps:
s1, crushing and heating polyethylene, graphene and feldspar to 80-90 ℃, stirring and mixing uniformly, cooling to 40-50 ℃, adding an antioxidant and an auxiliary antioxidant, and mixing and stirring again to obtain a base material;
s2, crushing lotus leaves, putting the lotus leaves into an ethanol solution, heating and stirring the lotus leaves to 120 ℃ and then standing the lotus leaves, taking supernatant liquid, adding vegetable protein into the supernatant liquid, and fully stirring the mixture to obtain paste;
s3, fully mixing and stirring the base material, the paste, the compatilizer, the ultraviolet absorbent and the defoaming agent, and then feeding the mixture into a double-screw extruder, wherein the temperature of the extruder is increased in a gradient manner from a feeding port to a branch port;
and S4, drawing the extruded mixture sheet into a roller through a feeding machine, and performing extrusion forming through the roller to obtain the modified polyethylene geomembrane waterproof roll.
As an improvement, the temperature of the extruder comprises four gradients, namely a first-level 100 ℃, a second-level 130 ℃, a third-level 145 ℃ and a fourth-level 155 ℃.
Compared with the prior art, the invention has the advantages that: the addition of the graphene and the feldspar containing 0.7-0.9% of mass iron can effectively increase the wear resistance and mechanical strength of a finished product, the addition of the ultraviolet absorbent can increase the solar irradiation intensity, the addition of the lotus leaves and the vegetable protein is favorable for improving the hydrophobicity of the finished product and enhancing the waterproof performance, the extruder extrudes the mixed material in a temperature gradient manner, so that the component degradation caused by overhigh initial temperature of the uniformly stirred material can be prevented, the product performance is influenced, the final output temperature is controlled at 155 ℃, the height can be avoided, the energy consumption is reduced, and the equipment utilization rate is increased.
Detailed Description
Example 1
The modified polyethylene waterproof geomembrane is prepared from the following raw materials in parts by weight: 45 parts of polyethylene, 4 parts of graphene, 8 parts of feldspar, 55 parts of lotus leaves, 13 parts of vegetable protein, 2.5 parts of compatilizer, 0.4 part of ultraviolet absorber, 0.3 part of antioxidant, 0.15 part of auxiliary antioxidant and 2 parts of defoaming agent.
A preparation method of a modified polyethylene waterproof geomembrane comprises the following steps:
s1, crushing and heating polyethylene, graphene and feldspar to 85 ℃, stirring and mixing uniformly, cooling to 45 ℃, adding an antioxidant and an auxiliary antioxidant, and mixing and stirring again to obtain a base material;
s2, crushing lotus leaves, putting the lotus leaves into an ethanol solution, heating and stirring the lotus leaves to 110 ℃, standing the lotus leaves, taking supernatant, adding vegetable protein into the supernatant, and fully stirring the mixture to obtain paste;
s3, fully mixing and stirring the base material, the paste, the compatilizer, the ultraviolet absorbent and the defoaming agent, and then feeding the mixture into a double-screw extruder, wherein the temperature of the extruder is increased in a gradient manner from a feeding port to a shunting port, and the temperature gradients are respectively 100 ℃ at the first stage, 130 ℃ at the second stage, 145 ℃ at the third stage and 155 ℃ at the fourth stage;
and S4, drawing the extruded mixture sheet into a roller through a feeding machine, and performing extrusion forming through the roller to obtain the modified polyethylene geomembrane waterproof roll.
Example 2
The modified polyethylene waterproof geomembrane is prepared from the following raw materials in parts by weight: 40 parts of polyethylene, 3 parts of graphene, 5 parts of feldspar, 50 parts of lotus leaves, 10 parts of vegetable protein, 2 parts of compatilizer, 0.3 part of ultraviolet absorber, 0.2 part of antioxidant, 0.1 part of auxiliary antioxidant and 1 part of defoaming agent.
A preparation method of a modified polyethylene waterproof geomembrane comprises the following steps:
s1, crushing and heating polyethylene, graphene and feldspar to 85 ℃, stirring and mixing uniformly, cooling to 45 ℃, adding an antioxidant and an auxiliary antioxidant, and mixing and stirring again to obtain a base material;
s2, crushing lotus leaves, putting the lotus leaves into an ethanol solution, heating and stirring the lotus leaves to 110 ℃, standing the lotus leaves, taking supernatant, adding vegetable protein into the supernatant, and fully stirring the mixture to obtain paste;
s3, fully mixing and stirring the base material, the paste, the compatilizer, the ultraviolet absorbent and the defoaming agent, and then feeding the mixture into a double-screw extruder, wherein the temperature of the extruder is increased in a gradient manner from a feeding port to a shunting port, and the temperature gradients are respectively 100 ℃ at the first stage, 130 ℃ at the second stage, 145 ℃ at the third stage and 155 ℃ at the fourth stage;
and S4, drawing the extruded mixture sheet into a roller through a feeding machine, and performing extrusion forming through the roller to obtain the modified polyethylene geomembrane waterproof roll.
Example 3
The modified polyethylene waterproof geomembrane is prepared from the following raw materials in parts by weight: 50 parts of polyethylene, 5 parts of graphene, 10 parts of feldspar, 60 parts of lotus leaves, 15 parts of vegetable protein, 3 parts of compatilizer, 0.5 part of ultraviolet absorber, 0.4 part of antioxidant, 0.2 part of auxiliary antioxidant and 3 parts of defoaming agent.
A preparation method of a modified polyethylene waterproof geomembrane comprises the following steps:
s1, crushing and heating polyethylene, graphene and feldspar to 85 ℃, stirring and mixing uniformly, cooling to 45 ℃, adding an antioxidant and an auxiliary antioxidant, and mixing and stirring again to obtain a base material;
s2, crushing lotus leaves, putting the lotus leaves into an ethanol solution, heating and stirring the lotus leaves to 110 ℃, standing the lotus leaves, taking supernatant, adding vegetable protein into the supernatant, and fully stirring the mixture to obtain paste;
s3, fully mixing and stirring the base material, the paste, the compatilizer, the ultraviolet absorbent and the defoaming agent, and then feeding the mixture into a double-screw extruder, wherein the temperature of the extruder is increased in a gradient manner from a feeding port to a shunting port, and the temperature gradients are respectively 100 ℃ at the first stage, 130 ℃ at the second stage, 145 ℃ at the third stage and 155 ℃ at the fourth stage;
and S4, drawing the extruded mixture sheet into a roller through a feeding machine, and performing extrusion forming through the roller to obtain the modified polyethylene geomembrane waterproof roll.
Claims (5)
1. The modified polyethylene waterproof geomembrane is characterized by being prepared from the following raw materials in parts by weight: 40-50 parts of polyethylene, 3-5 parts of graphene, 5-10 parts of feldspar, 50-60 parts of lotus leaves, 10-15 parts of vegetable protein, 2-3 parts of compatilizer, 0.3-0.5 part of ultraviolet absorber, 0.2-0.4 part of antioxidant, 0.1-0.2 part of auxiliary antioxidant and 1-3 parts of defoaming agent.
2. The modified polyethylene waterproof geomembrane according to claim 1, which is prepared from the following raw materials in parts by weight: 45 parts of polyethylene, 4 parts of graphene, 8 parts of feldspar, 55 parts of lotus leaves, 13 parts of vegetable protein, 2.5 parts of compatilizer, 0.4 part of ultraviolet absorber, 0.3 part of antioxidant, 0.15 part of auxiliary antioxidant and 2 parts of defoaming agent.
3. The modified polyethylene waterproof geomembrane according to claim 1, wherein the mass fraction of iron in feldspar is 0.7-0.9%.
4. The preparation method of the modified polyethylene waterproof geomembrane is characterized by comprising the following steps of:
s1, crushing and heating polyethylene, graphene and feldspar to 80-90 ℃, stirring and mixing uniformly, cooling to 40-50 ℃, adding an antioxidant and an auxiliary antioxidant, and mixing and stirring again to obtain a base material;
s2, crushing lotus leaves, putting the lotus leaves into an ethanol solution, heating and stirring the lotus leaves to 120 ℃ and then standing the lotus leaves, taking supernatant liquid, adding vegetable protein into the supernatant liquid, and fully stirring the mixture to obtain paste;
s3, fully mixing and stirring the base material, the paste, the compatilizer, the ultraviolet absorbent and the defoaming agent, and then feeding the mixture into a double-screw extruder, wherein the temperature of the extruder is increased in a gradient manner from a feeding port to a branch port;
and S4, drawing the extruded mixture sheet into a roller through a feeding machine, and performing extrusion forming through the roller to obtain the modified polyethylene geomembrane waterproof roll.
5. The method of claim 4, wherein the extruder temperature comprises four gradients, namely, first 100 ℃, second 130 ℃, third 145 ℃ and fourth 155 ℃.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911034991.4A CN110698748A (en) | 2019-10-29 | 2019-10-29 | Modified polyethylene waterproof geomembrane and preparation method thereof |
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| CN201911034991.4A CN110698748A (en) | 2019-10-29 | 2019-10-29 | Modified polyethylene waterproof geomembrane and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116813998A (en) * | 2023-07-05 | 2023-09-29 | 湖南盛业土工材料制造有限公司 | Conductive composite geomembrane |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103897247A (en) * | 2014-04-01 | 2014-07-02 | 郑家玉 | Polyethylene geomembrane and production process thereof |
| CN107868318A (en) * | 2017-11-28 | 2018-04-03 | 合肥华福土工合成材料有限公司 | A kind of waterproofing geomembrane and preparation method thereof |
| CN108384136A (en) * | 2018-01-26 | 2018-08-10 | 新疆磐基实业有限公司 | Graphene geomembrane and its preparation method and application |
| CN108503930A (en) * | 2018-04-28 | 2018-09-07 | 郭舒洋 | A kind of preparation method of modified poly ethylene geomembrane |
-
2019
- 2019-10-29 CN CN201911034991.4A patent/CN110698748A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103897247A (en) * | 2014-04-01 | 2014-07-02 | 郑家玉 | Polyethylene geomembrane and production process thereof |
| CN107868318A (en) * | 2017-11-28 | 2018-04-03 | 合肥华福土工合成材料有限公司 | A kind of waterproofing geomembrane and preparation method thereof |
| CN108384136A (en) * | 2018-01-26 | 2018-08-10 | 新疆磐基实业有限公司 | Graphene geomembrane and its preparation method and application |
| CN108503930A (en) * | 2018-04-28 | 2018-09-07 | 郭舒洋 | A kind of preparation method of modified poly ethylene geomembrane |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116813998A (en) * | 2023-07-05 | 2023-09-29 | 湖南盛业土工材料制造有限公司 | Conductive composite geomembrane |
| CN116813998B (en) * | 2023-07-05 | 2024-03-22 | 湖南盛业土工材料制造有限公司 | Conductive composite geomembrane |
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