CN113801359B - Chemical floor anticorrosion composite film and preparation process thereof - Google Patents
Chemical floor anticorrosion composite film and preparation process thereof Download PDFInfo
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- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
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- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
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- C08J2483/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen, or carbon only; Derivatives of such polymers
- C08J2483/04—Polysiloxanes
- C08J2483/08—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen, and oxygen
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Abstract
The invention discloses a preparation process of a chemical floor anticorrosion composite film, which comprises the following steps: the surface pretreatment method comprises the following steps of (1) pretreating the surface of a polyester film which is a polyethylene terephthalate film to obtain a polyethylene terephthalate film with the pretreated surface; the fluorine-silicon nano coating solution is coated on the polyethylene glycol terephthalate film to form a fluorine-silicon nano coating. The fluorine-silicon nano coating in the chemical floor anticorrosion composite film obviously improves the aging resistance, wear resistance and other performances of the composite film, and the composite of the polyester film and the fluorine-silicon nano coating improves the aging resistance, super-strong chemical corrosion resistance and other performances of the composite film, so that the chemical floor anticorrosion composite film is endowed with anticorrosion and weather resistance, and long-term protection of a base layer is realized.
Description
Technical Field
The invention relates to the technical field of chemical floor, in particular to a chemical floor anticorrosion composite film and a preparation process thereof.
Background
The terrace is a part of a bottom room, which is contacted with a soil layer, bears the load of the bottom room, and has certain strength and rigidity, and has the performances of moisture resistance, water resistance, heat preservation and wear resistance. The terrace generally uses specific material and technology to carry out construction treatment and demonstrate certain decorative and functional ground to original ground, and terrace material kind is very much, including concrete seal curing agent terrace material, epoxy self-leveling terrace material, carborundum wear-resisting terrace material, antistatic terrace material, epoxy antiskid terrace material, polyurea resin terrace material etc.. The terrace material is connected with the bottom room and the soil layer, and needs to ensure certain strength because of bearing the load of the bottom workshop, and also needs to have the performances of moisture resistance, acid and alkali resistance, impact resistance and wear resistance.
In some production workshops for chemicals and organic reagents, acidic substances and alkaline substances are used as production raw materials, and due to strong corrosivity of the substances, if the acid resistance and the alkali resistance of the floor surface material are poor, the floor surface material can be damaged to a certain extent, and the performance of the floor surface material is influenced. Through coating the coating on the surface of the floor material, a double-layer composite structure is formed, so that the floor surface material has good acid and alkali resistance and aging resistance, and a product with more superior performance can be provided.
Disclosure of Invention
An object of the present invention is to solve at least the above problems and/or disadvantages and to provide at least the advantages described hereinafter.
To achieve these objects and other advantages in accordance with the present invention, there is provided a process for preparing a chemical grade level anticorrosion composite film, comprising:
the polyester film is a polyethylene terephthalate film, and the surface of the polyethylene terephthalate film is pretreated, wherein the pretreatment process comprises the following steps: placing the polyethylene terephthalate film in a low-temperature plasma treatment instrument for treatment for 60-120 s, then soaking the polyethylene terephthalate film in a surface treatment agent for 30-60 min, taking out the polyethylene terephthalate film, and naturally airing the polyethylene terephthalate film to obtain a polyethylene terephthalate film with a pretreated surface;
and the fluorine-silicon nano coating solution is coated on the polyethylene glycol terephthalate film to form a fluorine-silicon nano coating.
Preferably, pressure ultrasound is applied in the soaking process, and the pressure of the pressure ultrasound is 1.5-3 MPa; the ultrasonic frequency is 55-65 KHz, and the ultrasonic power is 300-500W.
Preferably, the atmosphere of the low-temperature plasma processor is CF 4 (ii) a The frequency of the low-temperature plasma processor is 30-65 KHz, the power is 80-100W, and the pressure of the atmosphere is 15-35 Pa;
the surface treating agent is prepared by mixing the following raw materials in parts by weight: 10 to 15 portions of polyurethane resin, 10 to 20 portions of fluoroalkyl silane, 1.5 to 3 portions of 1-ethyl-3-methylimidazol lactic acid, 35 to 50 portions of absolute ethyl alcohol and 50 to 60 portions of acetone.
Preferably, the preparation method of the fluorine-silicon nano coating comprises the following steps: adding 30-50 parts of benzotrifluoride, 80-100 parts of nano-silicon solution, 20-30 parts of vinyl polysiloxane, 15-25 parts of glyceryl tristearate and 10-15 parts of polyoxypropylene glycerol ether into 150-180 parts of fluorosilicone resin by weight parts, heating to 45-55 ℃, uniformly stirring to obtain fluorosilicone nano-coating solution, and coating the fluorosilicone nano-coating solution on a polytetrafluoroethylene film to form a fluorosilicone nano-coating.
Preferably, the preparation method of the nano silicon solution comprises the following steps: adding nano silicon into the treatment solution for soaking, centrifuging, drying, adding the dried material into N-methyl pyrrolidone, and performing ultrasonic dispersion to obtain a nano silicon solution; the mass ratio of the dried material to the N-methyl pyrrolidone is 1:1-2.5.
Preferably, pressure ultrasound is applied in the soaking process, and the pressure ultrasound is applied in the soaking process, wherein the pressure of the pressure ultrasound is 1-2 MPa; the ultrasonic frequency is 35-45 KHz, and the ultrasonic power is 300-500W.
Preferably, the treatment fluid is prepared by mixing the following raw materials in parts by weight: 6 to 8 parts of perfluorodecyl trimethoxy silane, 1.5 to 3 parts of octyl phenol polyoxyethylene ether and 30 to 50 parts of isopropanol.
The invention also provides the chemical floor anticorrosive composite film prepared by the preparation process.
The invention at least comprises the following beneficial effects: the fluorine-silicon nano coating in the chemical floor anticorrosion composite film obviously improves the aging resistance, wear resistance and other performances of the composite film, and the composite of the polyester film and the fluorine-silicon nano coating improves the aging resistance, super-strong chemical corrosion resistance and other performances of the composite film, so that the chemical floor anticorrosion composite film is endowed with anticorrosion and weather resistance, and long-term protection of a base layer is realized.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
The specific implementation mode is as follows:
the present invention is further described in detail below with reference to examples so that those skilled in the art can practice the invention with reference to the description.
It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
Example 1:
a preparation method of a chemical floor anticorrosion composite film comprises the following steps:
the polyester film is a polyethylene terephthalate film, and the surface of the polyethylene terephthalate film is pretreated, wherein the pretreatment process comprises the following steps: placing the polyethylene terephthalate film in a low-temperature plasma treatment instrument for treatment for 120s, then soaking in a surface treatment agent for 45min, taking out and naturally drying to obtain a polyethylene terephthalate film with a pretreated surface; applying pressure ultrasound in the soaking process, wherein the pressure of the pressure ultrasound is 1.5MPa; the ultrasonic frequency is 55KHz, and the ultrasonic power is 300W; the atmosphere of the low-temperature plasma processor is CF 4 (ii) a The frequency of the low-temperature plasma processor is 35KHz, the power is 80W, and the pressure of the atmosphere is 20Pa; the surface treating agent is prepared by mixing the following raw materials: 10kg of a polyurethane resin, 15kg of a fluoroalkyl silane, 1.5kg of 1-ethyl-3-methylimidazolyl lactic acid, 35kg of absolute ethanol, and 55kg of acetone;
and the fluorine-silicon nano coating solution is coated on the polyethylene glycol terephthalate film to form a fluorine-silicon nano coating.
The preparation method of the fluorine-silicon nano coating comprises the following steps: adding 4.5kg of benzotrifluoride, 8kg of nano-silicon solution, 2.5kg of vinyl polysiloxane, 2kg of glyceryl tristearate and 1.5kg of polyoxypropylene glycerol ether into 15kg of fluorosilicone resin, heating to 55 ℃, uniformly stirring to obtain a fluorosilicone nano-coating solution, and coating the fluorosilicone nano-coating solution on a polytetrafluoroethylene film to form the fluorosilicone nano-coating.
The preparation method of the nano silicon solution comprises the following steps: adding 1kg of nano silicon into 10kg of treatment liquid for soaking, centrifuging, drying, adding the dried material into N-methyl pyrrolidone, and performing ultrasonic dispersion to obtain a nano silicon solution; the mass ratio of the dried material to the N-methyl pyrrolidone is 1:1; applying pressure ultrasound in the soaking process, wherein the pressure of the pressure ultrasound is 1MPa; the ultrasonic frequency is 35KHz, the ultrasonic power is 300W, and the treatment fluid is prepared by mixing the following raw materials: 6kg of perfluorodecyltrimethoxysilane, 1.5kg of octylphenol polyoxyethylene ether and 30kg of isopropanol.
Example 2:
a preparation method of a chemical floor anticorrosion composite film comprises the following steps:
the polyester film is a polyethylene terephthalate film, and the surface of the polyethylene terephthalate film is pretreated, wherein the pretreatment process comprises the following steps: placing the polyethylene terephthalate film in a low-temperature plasma treatment instrument for treating for 60s, then soaking in a surface treatment agent for 60min, taking out and naturally drying to obtain a polyethylene terephthalate film with a pretreated surface; applying pressure ultrasound in the soaking process, wherein the pressure of the pressure ultrasound is 2MPa; the ultrasonic frequency is 65KHz, and the ultrasonic power is 300W; the atmosphere of the low-temperature plasma treatment instrument is CF 4 (ii) a The frequency of the low-temperature plasma processor is 35KHz, the power is 80W, and the pressure of the atmosphere is 25Pa; the surface treating agent is prepared by mixing the following raw materials: 15kg of polyurethane resin, 10kg of fluoroalkyl silane, 2kg of 1-ethyl-3-methylimidazolium lactic acid, 45kg of absolute ethyl alcohol and 60kg of acetone;
and the fluorine-silicon nano coating solution is coated on the polyethylene glycol terephthalate film to form a fluorine-silicon nano coating.
The preparation method of the fluorine-silicon nano coating comprises the following steps: adding 5kg of benzotrifluoride, 8kg of nano-silicon solution, 3kg of vinyl polysiloxane, 2.5kg of glyceryl tristearate and 1kg of polyoxypropylene glycerol ether into 17kg of fluorosilicone resin, heating to 55 ℃, uniformly stirring to obtain a fluorosilicone nano-coating solution, and coating the fluorosilicone nano-coating solution on a polytetrafluoroethylene film to form a fluorosilicone nano-coating.
The preparation method of the nano-silicon solution comprises the following steps: adding 1kg of nano silicon into 10kg of treatment liquid for soaking, centrifuging, drying, adding the dried material into N-methyl pyrrolidone, and performing ultrasonic dispersion to obtain a nano silicon solution; the mass ratio of the dried material to the N-methyl pyrrolidone is 1:1; applying pressure ultrasound in the soaking process, wherein the pressure of the pressure ultrasound is 2MPa; the ultrasonic frequency is 35KHz, the ultrasonic power is 300W, and the treatment fluid is prepared by mixing the following raw materials: 6kg of perfluorodecyltrimethoxysilane, 1.5kg of octylphenol polyoxyethylene ether and 30kg of isopropanol.
Comparative example 1:
a preparation method of a chemical floor anticorrosion composite film comprises the following steps:
a polyester film which is a polyethylene terephthalate film;
and the fluorine-silicon nano coating solution is coated on the polyethylene glycol terephthalate film to form a fluorine-silicon nano coating.
The preparation method of the fluorine-silicon nano coating comprises the following steps: adding 5kg of benzotrifluoride, 8kg of nano-silicon solution, 3kg of vinyl polysiloxane, 2.5kg of glyceryl tristearate and 1kg of polyoxypropylene glycerol ether into 17kg of fluorosilicone resin, heating to 55 ℃, uniformly stirring to obtain a fluorosilicone nano-coating solution, and coating the fluorosilicone nano-coating solution on a polytetrafluoroethylene film to form a fluorosilicone nano-coating.
The preparation method of the nano silicon solution comprises the following steps: adding 1kg of nano silicon into 10kg of treatment liquid for soaking, centrifuging, drying, adding the dried material into N-methyl pyrrolidone, and performing ultrasonic dispersion to obtain a nano silicon solution; the mass ratio of the dried material to the N-methyl pyrrolidone is 1:1; applying pressurized ultrasound in the soaking process, and applying pressurized ultrasound in the soaking process, wherein the pressure of the pressurized ultrasound is 2MPa; the ultrasonic frequency is 35KHz, the ultrasonic power is 300W, and the treatment fluid is prepared by mixing the following raw materials: 6kg of perfluorodecyltrimethoxysilane, 1.5kg of octylphenol polyoxyethylene ether and 30kg of isopropanol.
Comparative example 2:
a preparation method of a chemical floor anticorrosion composite film comprises the following steps:
a polyester film which is a polyethylene terephthalate film, and the surface of which is pre-treatedThe pretreatment process comprises the following steps: placing the polyethylene terephthalate film in a low-temperature plasma treatment instrument for treating for 60s, then soaking in a surface treatment agent for 60min, taking out and naturally drying to obtain a polyethylene terephthalate film with a pretreated surface; applying pressure ultrasound in the soaking process, wherein the pressure of the pressure ultrasound is 2MPa; the ultrasonic frequency is 65KHz, and the ultrasonic power is 300W; the atmosphere of the low-temperature plasma processor is CF 4 (ii) a The frequency of the low-temperature plasma processor is 35KHz, the power is 80W, and the pressure of the atmosphere is 25Pa; the surface treating agent is prepared by mixing the following raw materials: 15kg of polyurethane resin, 10kg of fluoroalkyl silane, 2kg of 1-ethyl-3-methylimidazolium lactic acid, 45kg of absolute ethyl alcohol and 60kg of acetone;
and the fluorine-silicon nano coating solution is coated on the polyethylene glycol terephthalate film to form a fluorine-silicon nano coating.
The preparation method of the fluorine-silicon nano coating comprises the following steps: adding 5kg of benzotrifluoride, 8kg of nano-silicon solution, 3kg of vinyl polysiloxane, 2.5kg of glyceryl tristearate and 1kg of polyoxypropylene glycerol ether into 17kg of fluorosilicone resin, heating to 55 ℃, uniformly stirring to obtain a fluorosilicone nano-coating solution, and coating the fluorosilicone nano-coating solution on a polytetrafluoroethylene film to form a fluorosilicone nano-coating.
The preparation method of the nano silicon solution comprises the following steps: adding nano silicon into N-methyl pyrrolidone, and performing ultrasonic dispersion to obtain a nano silicon solution; the mass ratio of the dried material to the N-methyl pyrrolidone is 1:1.
The aging resistance test was performed on the composite membranes prepared in examples 1 to 2 and comparative examples 1 to 2, and the degree and amount of damage were evaluated on a numerical scale of 0 to 5 with reference to test standards of GB/T1865-2009 and GB/T1766-2008, with 0 representing no damage and 5 representing severe damage. Each example was tested 5 times under the same conditions; the results are shown in Table 1;
the composite membranes prepared in the 1-2 and comparative examples 1-3 are subjected to related tests according to GB/T22374-2008 standard, and the test results are shown in Table 1;
TABLE 1
While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable to various fields of endeavor for which the invention may be embodied with additional modifications as would be readily apparent to those skilled in the art, and the invention is therefore not limited to the details given herein and to the examples shown and described without departing from the generic concept as defined by the claims and their equivalents.
Claims (4)
1. A preparation technology of a chemical floor anticorrosion composite film is characterized by comprising the following steps:
the polyester film is a polyethylene terephthalate film, and the surface of the polyethylene terephthalate film is pretreated, wherein the pretreatment process comprises the following steps: placing the polyethylene terephthalate film in a low-temperature plasma treatment instrument for treatment for 60-120 s, then soaking the polyethylene terephthalate film in a surface treatment agent for 30-60 min, taking out the polyethylene terephthalate film and naturally airing the polyethylene terephthalate film to obtain a polyethylene terephthalate film with a pretreated surface;
the fluorine-silicon nano coating solution is coated on the polyethylene glycol terephthalate film to form a fluorine-silicon nano coating;
wherein the atmosphere of the low-temperature plasma processor is CF 4; the frequency of the low-temperature plasma processor is 30-65 KHz, the power is 80-100W, and the pressure of the atmosphere is 15-35 Pa;
the surface treating agent is prepared by mixing the following raw materials in parts by weight: 10 to 15 parts of polyurethane resin, 10 to 20 parts of fluoroalkyl silane, 1.5 to 3 parts of 1-ethyl-3-methylimidazol lactic acid, 35 to 50 parts of absolute ethyl alcohol and 50 to 60 parts of acetone;
the preparation method of the fluorine-silicon nano coating comprises the following steps: adding 30-50 parts of benzotrifluoride, 80-100 parts of nano-silicon solution, 20-30 parts of vinyl polysiloxane, 15-25 parts of glyceryl tristearate and 10-15 parts of polyoxypropylene glycerol ether into 150-180 parts of fluorosilicone resin by weight parts, heating to 45-55 ℃, uniformly stirring to obtain fluorosilicone nano-coating solution, and coating the fluorosilicone nano-coating solution on a polytetrafluoroethylene film to form a fluorosilicone nano-coating;
the preparation method of the nano silicon solution comprises the following steps: adding nano silicon into the treatment solution for soaking, centrifuging, drying, adding the dried material into N-methyl pyrrolidone, and performing ultrasonic dispersion to obtain a nano silicon solution; the mass ratio of the dried material to the N-methyl pyrrolidone is 1:1-2.5;
the treatment fluid is prepared by mixing the following raw materials in parts by weight: 6 to 8 parts of perfluorodecyl trimethoxy silane, 1.5 to 3 parts of octyl phenol polyoxyethylene ether and 30 to 50 parts of isopropanol.
2. The preparation process of the chemical engineering terrace anticorrosive composite film according to claim 1, characterized in that pressurized ultrasound is applied in the process of soaking the polyethylene terephthalate film, and the pressure of the pressurized ultrasound is 1.5-3 MPa; the ultrasonic frequency is 55-65 KHz, and the ultrasonic power is 300-500W.
3. The preparation process of the chemical engineering terrace anticorrosive composite film according to claim 1, characterized in that pressurized ultrasound is applied in the process of soaking nano silicon, and the pressure of the pressurized ultrasound is 1-2 MPa; the ultrasonic frequency is 35-45 KHz, and the ultrasonic power is 300-500W.
4. A chemical industry terrace anticorrosive composite film prepared by the preparation process according to any one of claims 1 to 3.
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Effective date of registration: 20230629 Address after: No. 210, Zone 1, No. 8, Tongqu Street, Huayuan Street, Kecheng District, Quzhou, Zhejiang Province 324000 Patentee after: Quzhou Trumpchi Waterproof and Anticorrosion Engineering Technology Co.,Ltd. Address before: 324022 Da Zhou Zhen Shi Zi Shan Cun Bai Xi Keng, Qujiang District, Quzhou City, Zhejiang Province Patentee before: QUZHOU WENTIAN CHEMICALS CO.,LTD. |