CN115851058A - Anti-corrosion coating for surface of distributed photovoltaic module - Google Patents
Anti-corrosion coating for surface of distributed photovoltaic module Download PDFInfo
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- CN115851058A CN115851058A CN202211673230.5A CN202211673230A CN115851058A CN 115851058 A CN115851058 A CN 115851058A CN 202211673230 A CN202211673230 A CN 202211673230A CN 115851058 A CN115851058 A CN 115851058A
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Abstract
The invention provides an anti-corrosion coating for the surface of a distributed photovoltaic module, which comprises the following components in parts by weight: 4 parts of polytetrafluoroethylene and 2-6 parts of graphene loaded TiO 2 50-70 parts of base resin, 10-15 parts of multifunctional auxiliary agent, 5-15 parts of curing agent, 5-20 parts of adhesion promoter and 1-3 parts of flatting agent. Fluorine is introduced by adding polytetrafluoroethylene, and the fluorine has the structural characteristics of maximum electronegativity, small atomic radius, short length of formed C-F bond, large bond energy, protection of F atom and perfluoro group on a main chain and the like, so that the ultraviolet radiation resistance and the anti-ultraviolet radiation resistance are realizedChemical corrosion, stain resistance, water resistance and the like; loading graphene with TiO 2 The functional filler is added into the coating, and the salt spray resistance experiment result shows that the coating achieves the photoinduced cathode protection effect on the metal matrix, and after the salt spray resistance test, the metal is only slightly corroded.
Description
Technical Field
The invention relates to an anti-corrosion coating for the surface of a distributed photovoltaic module.
Background
The distributed photovoltaic power generation refers in particular to a photovoltaic power generation facility which is built and operated near a user site, is self-supplied by a user side, is on line with redundant electric quantity, and is characterized by balance adjustment in a power distribution system. The distributed photovoltaic power generation follows the principles of local conditions, cleanness, high efficiency, scattered layout and near utilization, fully utilizes local solar energy resources, and replaces and reduces fossil energy consumption.
The distributed photovoltaic power generation refers in particular to a distributed power generation system which adopts photovoltaic components and directly converts solar energy into electric energy. The working environment of the solar power generation system is complex, and severe environments such as high temperature, high humidity, salt mist, ammonia gas, strong wind and sand and the like have strict requirements on the reliability and environmental adaptability of the system. With the increasingly wide application of photovoltaic modules, the photovoltaic modules installed in coastal areas and high saline-alkali areas are extremely easy to be corroded by salt fog, the service lives of auxiliary materials of the components such as frames, junction boxes, glass and the like are seriously influenced, and special seaside climatic conditions put forward higher requirements on the reliability of the photovoltaic modules. Install farm, the more agricultural area of animal husbandry, especially the farm of raising the livestock easily produces the ammonia of high concentration, and in high ammonia environment, photovoltaic module suffers the probability greatly increased that corrodes easily. There is therefore a need to improve the corrosion protection of photovoltaic modules.
Disclosure of Invention
In order to improve the anti-corrosion performance of the distributed photovoltaic module, the anti-corrosion coating for the surface of the distributed photovoltaic module is provided, and the specific scheme is as follows:
the surface anti-corrosion coating for the distributed photovoltaic module is characterized by comprising the following components in parts by weight:
4 parts of polytetrafluoroethylene and 2-6 parts of graphene loaded TiO 2 50-70 parts of base resin, 10-15 parts of multifunctional auxiliary agent, 5-15 parts of curing agent, 5-20 parts of adhesion promoter and 1-3 parts of flatting agent.
Further, the graphene loaded TiO 2 The preparation method comprises the following steps:
s1: carrying out ultrasonic oxidation on graphite to obtain graphene oxide;
s2: reducing graphene oxide to graphene;
s3: adding TiO into the mixture 2 Adsorbing the graphene on the graphene, and performing aging treatment;
s4: aging and roasting to finally form the graphene loaded TiO 2 。
Further, the base resin comprises 34-45% of acrylic resin, 20-40% of polyurethane and 5-8% of silica sol.
Further, the curing agent comprises 30-55% of diethylaminopropylamine, 12-25% of aminoacetyl and 30-40% of ethylene glycol.
Further, the multifunctional auxiliary agent is AMP-95.
Further, the roasting temperature in S4 is 200-230 ℃.
An erosion-resistant coating for a surface of a distributed photovoltaic module, comprising the steps of:
s1: mixing the base resin, the multifunctional assistant, the curing agent, the adhesion promoter and the flatting agent, and uniformly stirring;
s2: adding polytetrafluoroethylene into the material prepared in the step S1, and uniformly stirring again;
s3: adding graphene loaded TiO into the material prepared by S2 2 。
Has the beneficial effects that:
(1) The invention provides an anti-corrosion coating for the surface of a distributed photovoltaic module, which is prepared by adding polytetrafluoroethylene and graphene-loaded TiO into a coating component 2 Fluorine is introduced by adding polytetrafluoroethylene, and the fluorine has the structural characteristics of ultraviolet radiation resistance, chemical corrosion resistance, contamination resistance, water resistance and the like due to the structural characteristics of the largest electronegativity, small atomic radius, short length of formed C-F bonds, large bond energy, protection of F atoms and perfluoro groups on a main chain and the like; loading graphene with TiO 2 The functional filler is added into the coating, and the salt spray resistance experiment result shows that the coating achieves the photoinduced cathode protection effect on the metal matrix, and after the salt spray resistance test, the metal is only slightly corroded.
(2) The invention provides an anti-corrosion coating for the surface of a distributed photovoltaic module, which is characterized in that the anti-corrosion coating is coated on the surface of the photovoltaic module, the electrode potential of the anti-corrosion coating is lower than that of a protected metal, so that the anti-corrosion coating is gradually corroded as an anode and the photovoltaic module as a cathode is protected.
Detailed Description
For the purpose of enhancing understanding of the present invention, the present invention will be further described in detail with reference to the following examples, which are provided for illustration only and are not to be construed as limiting the scope of the present invention.
Example 1
A method for preparing an anti-erosion coating for the surface of a distributed photovoltaic module, comprising the steps of:
step 1, preparing raw materials: 55 parts of base resin, 12 parts of multifunctional auxiliary agent, 10 parts of curing agent, 15 parts of adhesion promoter and 2 parts of flatting agent;
step 2: adding 55 parts of base resin, 12 parts of multifunctional auxiliary agent, 10 parts of curing agent, 15 parts of adhesion promoter and 2 parts of flatting agent into a reaction container, and uniformly mixing to prepare a mixed material 1;
and step 3: and coating the mixed material on a photovoltaic module sample plate for standing.
Example 2
A method for preparing an anti-erosion coating for the surface of a distributed photovoltaic module, comprising the steps of:
step 1, preparing raw materials: 4 parts of polytetrafluoroethylene, 55 parts of base resin, 12 parts of multifunctional auxiliary agent, 7 parts of curing agent, 12 parts of adhesion promoter and 2 parts of flatting agent.
And 2, step: adding 4 parts of polytetrafluoroethylene, 55 parts of base resin, 12 parts of multifunctional auxiliary agent, 7 parts of curing agent, 12 parts of adhesion promoter and 2 parts of flatting agent into a reaction container, and uniformly mixing to prepare a mixed material 2;
and step 3: and coating the mixed material 2 on a photovoltaic module sample plate and standing.
Example 3
A method for preparing an anti-erosion coating for the surface of a distributed photovoltaic module, comprising the steps of:
step 1, preparationPreparing graphene loaded TiO 2 : carrying out ultrasonic oxidation on graphite to obtain graphene oxide; reducing graphene oxide to graphene; adding TiO into the mixture 2 Adsorbing the graphene on the graphene, and performing aging treatment; aging and roasting at 220 ℃ to finally form the graphene loaded TiO 2 ；
Step 2, preparing raw materials: 4 parts of polytetrafluoroethylene and 5 parts of graphene-loaded TiO 2 60 parts of base resin, 12 parts of multifunctional assistant, 7 parts of curing agent, 15 parts of adhesion promoter and 2 parts of flatting agent;
and step 3: loading 4 parts of polytetrafluoroethylene and 5 parts of graphene with TiO 2 60 parts of base resin, 12 parts of multifunctional assistant, 7 parts of curing agent, 15 parts of adhesion promoter and 2 parts of flatting agent are added into a reaction container and mixed uniformly to prepare a mixed material 3;
and 4, step 4: and coating the mixed material 3 on a photovoltaic module sample plate for standing.
Example 4
A preparation method of an anti-corrosion coating for the surface of a distributed photovoltaic module comprises the following steps:
step 1, preparing graphene loaded TiO 2 : carrying out ultrasonic oxidation on graphite to obtain graphene oxide; reducing graphene oxide to graphene; adding TiO into the mixture 2 Adsorbing the graphene on the graphene, and performing aging treatment; aging and roasting at 220 ℃ to finally form the graphene loaded TiO 2 ；
Step 2, preparing raw materials: 4 parts of polytetrafluoroethylene and 4 parts of graphene-loaded TiO 2 55 parts of base resin, 12 parts of multifunctional auxiliary agent, 7 parts of curing agent, 8 parts of adhesion promoter and 2 parts of flatting agent;
and 3, step 3: loading 4 parts of polytetrafluoroethylene and 4 parts of graphene with TiO 2 55 parts of base resin, 12 parts of multifunctional assistant, 7 parts of curing agent, 8 parts of adhesion promoter and 2 parts of flatting agent are added into a reaction container and mixed uniformly to prepare a mixed material 4;
and 4, step 4: and coating the mixed material 4 on a photovoltaic module sample plate for standing.
Example 5
A method for preparing an anti-erosion coating for the surface of a distributed photovoltaic module, comprising the steps of:
step 1, preparing graphene loaded TiO 2 : carrying out ultrasonic oxidation on graphite to obtain graphene oxide; reducing graphene oxide to graphene; adding TiO into the mixture 2 Adsorbing the graphene on the graphene, and performing aging treatment; aging and roasting at 220 ℃ to finally form the graphene loaded TiO 2 ；
Step 2, preparing raw materials: 4 parts of polytetrafluoroethylene and 4 parts of graphene-loaded TiO 2 60 parts of base resin, 13 parts of multifunctional assistant, 8 parts of curing agent, 9 parts of adhesion promoter and 2 parts of flatting agent;
and step 3: loading 4 parts of polytetrafluoroethylene and 4 parts of graphene with TiO 2 60 parts of base resin, 13 parts of multifunctional assistant, 8 parts of curing agent, 9 parts of adhesion promoter and 2 parts of flatting agent are added into a reaction container and mixed uniformly to prepare a mixed material 5;
and 4, step 4: and coating the mixed material 5 on a photovoltaic module sample plate for standing.
Photovoltaic modules coated with coatings according to examples 1 to 5
According to the detection results, the polytetrafluoroethylene and the graphene-supported TiO are added into the coating formula 2 And the corrosion resistance of the photovoltaic module is greatly enhanced.
As a further improvement, the above-mentioned is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The surface anti-corrosion coating for the distributed photovoltaic module is characterized by comprising the following components in parts by weight:
4 parts of polytetrafluoroethyleneEthylene, 2-6 parts of graphene loaded TiO 2 50-70 parts of base resin, 10-15 parts of multifunctional auxiliary agent, 5-15 parts of curing agent, 5-20 parts of adhesion promoter and 1-3 parts of flatting agent.
2. The surface erosion resistant coating for a distributed photovoltaic module of claim 1, wherein said graphene-supported TiO is 2 The preparation method comprises the following steps:
s1: carrying out ultrasonic oxidation on graphite to obtain graphene oxide;
s2: reducing graphene oxide to graphene;
s3: adding TiO into the mixture 2 Adsorbing the graphene on the graphene, and performing aging treatment;
s4: aging and roasting to finally form the graphene loaded TiO 2 。
3. The surface anti-corrosion coating for the distributed photovoltaic module according to claim 1, wherein the base resin comprises 34-45% of acrylic resin, 20-40% of polyurethane and 5-8% of silica sol.
4. The surface erosion prevention coating for the distributed photovoltaic module of claim 1, wherein the curing agent comprises 30-55% diethylaminopropylamine, 12-25% aminoacetyl, and 30-40% ethylene glycol.
5. The surface anti-erosion coating for a distributed photovoltaic module of claim 1, wherein said multifunctional additive is AMP-95.
6. The surface anti-erosion coating for the distributed photovoltaic module according to claim 2, wherein the baking temperature in S4 is 200 to 230 ℃.
7. An anti-erosion coating for surfaces of distributed photovoltaic modules according to claims 1 to 6, comprising the following steps:
s1: mixing the base resin, the multifunctional assistant, the curing agent, the adhesion promoter and the flatting agent, and uniformly stirring;
s2: adding polytetrafluoroethylene into the material prepared in the step S1, and uniformly stirring again;
s3: adding graphene loaded TiO into the material prepared by S2 2 。
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| CN202211673230.5A CN115851058A (en) | 2022-12-26 | 2022-12-26 | Anti-corrosion coating for surface of distributed photovoltaic module |
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2022
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