阅读说明：本技术 一种风机叶片用抗腐蚀涂料及其制备方法 (Anti-corrosion coating for fan blade and preparation method thereof ) 是由 王俊鹏 岳峰 于 2021-06-22 设计创作，主要内容包括：本发明涉及涂料技术领域,具体为一种风机叶片用抗腐蚀涂料及其制备方法,包括以下重量份原料：环氧乳液70-80份、纳米填料6-9份、改性蛭石8-12份、羧甲基纤维素1-2份、丙二醇丁醚2-3份、固化剂5-10份、纳米纤维素6-12份、去离子水30-40份；本发明通过加入改性蛭石、纳米纤维素和纳米填料,改性蛭石的层间距变大,其表面-界面呈疏水性,有利于改性蛭石及其上的纳米填料与环氧乳液基体吸附结合；纳米纤维素表面具有大量的亲水基-羟基,可以与溶剂去离子水吸附结合,同时,纳米纤维素和改性蛭石在强烈的搅拌下,纳米纤维素部分穿插至改性蛭石的层间,有利于二者的连结,继而提高了涂料的稳定性,可形成较为致密的涂层,具有良好的耐腐蚀性。(The invention relates to the technical field of coatings, in particular to an anticorrosive coating for fan blades and a preparation method thereof, wherein the anticorrosive coating comprises the following raw materials in parts by weight: 70-80 parts of epoxy emulsion, 6-9 parts of nano filler, 8-12 parts of modified vermiculite, 1-2 parts of carboxymethyl cellulose, 2-3 parts of propylene glycol butyl ether, 5-10 parts of curing agent, 6-12 parts of nano cellulose and 30-40 parts of deionized water; according to the invention, by adding the modified vermiculite, the nanocellulose and the nanofiller, the interlayer spacing of the modified vermiculite is increased, the surface-interface of the modified vermiculite is hydrophobic, and the modified vermiculite and the nanofiller thereon are favorably adsorbed and combined with the epoxy emulsion matrix; the surface of the nano-cellulose is provided with a large number of hydrophilic groups-hydroxyl groups which can be absorbed and combined with solvent deionized water, meanwhile, under the strong stirring of the nano-cellulose and the modified vermiculite, the nano-cellulose is partially inserted between layers of the modified vermiculite, so that the nano-cellulose and the modified vermiculite are favorably connected, the stability of the coating is improved, a compact coating can be formed, and the coating has good corrosion resistance.)

1. The corrosion-resistant coating for the fan blade is characterized by comprising the following raw materials in parts by weight: 70-80 parts of epoxy emulsion, 6-9 parts of nano filler, 8-12 parts of modified vermiculite, 1-2 parts of carboxymethyl cellulose, 2-3 parts of propylene glycol butyl ether, 5-10 parts of curing agent, 6-12 parts of nano cellulose and 30-40 parts of deionized water.

2. The anti-corrosion coating for the fan blade as claimed in claim 1, wherein the coating comprises 75 parts of epoxy emulsion, 8 parts of nano filler, 10 parts of modified vermiculite, 1.5 parts of carboxymethyl cellulose, 2.5 parts of butyl propylene glycol ether, 8 parts of curing agent, 10 parts of nano cellulose and 35 parts of deionized water.

3. The anti-corrosion coating for the fan blade as claimed in claim 1, wherein the nano filler comprises nano titanium dioxide and nano calcium carbonate, and the mass ratio of the nano titanium dioxide to the nano calcium carbonate is 1: 1.

4. the anti-corrosion coating for the fan blade as claimed in claim 1, wherein the curing agent is one or more of aliphatic amine, aromatic amine and ethylenediamine.

5. The anti-corrosion coating for the fan blade as claimed in claim 1, wherein the modified vermiculite is prepared by the following method:

s1: putting vermiculite in a muffle furnace, calcining for 2-5min at the temperature of 500-;

s2: and uniformly dispersing cetyl trimethyl ammonium bromide and intermediate vermiculite in distilled water, stirring for 0.8-1.5h, filtering and drying to obtain the modified vermiculite.

6. The anti-corrosion coating for the fan blade according to claim 5, wherein the mass ratio of the vermiculite to the sodium chloride solution is 1: (60-80), wherein the mass concentration of the sodium chloride solution is 1 mol/L.

7. The preparation method of the anticorrosive paint for the fan blade according to any one of claims 1 to 6, characterized by comprising the following steps:

(1) putting deionized water, modified vermiculite and nano filler into a stirrer, and stirring at the rotating speed of 800-;

(2) putting the epoxy emulsion, the carboxymethyl fiber, the propylene glycol butyl ether and the nano-cellulose into an electric heating stirrer, and uniformly stirring to obtain a mixture B;

(3) and (3) putting the mixture A and the curing agent into an electric heating stirrer to be mixed with the mixture B, and uniformly stirring to obtain the anti-corrosion coating.

8. The preparation method of the anti-corrosion coating for the fan blade as claimed in claim 7, wherein in the step (2), the mixture B is obtained by stirring at a rotating speed of 1300-1500r/min at 35-45 ℃ for 25-30 min.

Technical Field

The invention relates to the technical field of coatings, in particular to an anti-corrosion coating for a fan blade and a preparation method thereof.

Background

The fan blade is one of the core components of the wind driven generator, accounts for about 15% -20% of the total cost of the fan, and the design quality of the fan blade is directly related to the performance and benefit of the fan. The fan blade is required to have high requirements, not only light weight, but also high strength, corrosion resistance and fatigue resistance, and in order to protect the fan blade better, the surface of the fan blade is often sprayed with an anti-corrosion coating to improve the corrosion resistance.

The dispersion stability of the water-based anti-corrosion coating for the fan blade in the prior art is poor, so that the anti-corrosion property is poor, and the fan blade cannot be well protected. Therefore, we propose an anticorrosive coating for fan blades and a preparation method thereof to solve the above problems.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides an anticorrosive coating for fan blades and a preparation method thereof, so as to overcome the problems mentioned in the background art.

In order to achieve the above purpose, the technical scheme of the invention is realized by the following technical scheme: an anticorrosive coating for fan blades comprises the following raw materials in parts by weight: 70-80 parts of epoxy emulsion, 6-9 parts of nano filler, 8-12 parts of modified vermiculite, 1-2 parts of carboxymethyl cellulose, 2-3 parts of propylene glycol butyl ether, 5-10 parts of curing agent, 6-12 parts of nano cellulose and 30-40 parts of deionized water.

Preferably, 75 parts of epoxy emulsion, 8 parts of nano filler, 10 parts of modified vermiculite, 1.5 parts of carboxymethyl cellulose, 2.5 parts of propylene glycol butyl ether, 8 parts of curing agent, 10 parts of nano cellulose and 35 parts of deionized water.

Preferably, the nano filler comprises nano titanium dioxide and nano calcium carbonate, and the mass ratio of the nano titanium dioxide to the nano calcium carbonate is 1: 1.

preferably, the curing agent is one or more of aliphatic amine, aromatic amine and ethylenediamine.

Preferably, the preparation method of the modified vermiculite comprises the following steps: s1: putting vermiculite in a muffle furnace, calcining for 2-5min at the temperature of 500-; s2: and uniformly dispersing cetyl trimethyl ammonium bromide and intermediate vermiculite in distilled water, stirring for 0.8-1.5h, filtering and drying to obtain the modified vermiculite.

Preferably, the mass ratio of the vermiculite to the sodium chloride solution is 1: (60-80), wherein the mass concentration of the sodium chloride solution is 1 mol/L.

The invention also provides a preparation method of the anticorrosive coating for the fan blade, which comprises the following steps:

(1) putting deionized water, modified vermiculite and nano filler into a stirrer, and stirring at the rotating speed of 800-;

(2) putting the epoxy emulsion, the carboxymethyl fiber, the propylene glycol butyl ether and the nano-cellulose into an electric heating stirrer, and uniformly stirring to obtain a mixture B;

(3) and (3) putting the mixture A and the curing agent into an electric heating stirrer to be mixed with the mixture B, and uniformly stirring to obtain the anti-corrosion coating.

Preferably, in the step (2), the mixture B is obtained by stirring at the rotating speed of 1300-1500r/min at the temperature of 35-45 ℃ for 25-30 min.

The invention has the beneficial effects that:

according to the invention, by adding the modified vermiculite, the nanocellulose and the nanofiller, the modified vermiculite has good adsorbability, the nanofiller is uniformly adsorbed, the agglomeration of the nanofiller is avoided, the interlayer spacing of the modified vermiculite is increased, the surface-interface of the modified vermiculite is hydrophobic, and the modified vermiculite and the nanofiller thereon are favorably adsorbed and combined with the epoxy emulsion matrix; the surface of the nano-cellulose is provided with a large number of hydrophilic groups-hydroxyl groups which can be adsorbed and combined with solvent deionized water, the nano-cellulose is also cross-linked to form a stable three-dimensional network structure due to strong hydrogen bond combination effect, meanwhile, under strong stirring, the nano-cellulose and the modified vermiculite are partially inserted into the layers of the modified vermiculite, so that the nano-cellulose and the modified vermiculite are favorably connected, the combination of the epoxy emulsion, the modified vermiculite, the nano-filler, the nano-cellulose and the deionized water is further improved, the obtained coating is good in stability, can form a compact coating and has good corrosion resistance;

the invention is characterized in that vermiculite is calcined and sodium chloride solution and sixteen ingredients are utilizedThe calcined vermiculite is modified by the alkyl trimethyl ammonium bromide, so that the interlayer spacing of the vermiculite is increased, the penetration of the nano-cellulose is facilitated, and meanwhile, NH is utilized₄ ⁺The intercalation treatment of the vermiculite makes the surface-interface of the vermiculite particles hydrophobic, which is beneficial to the adsorption combination of the vermiculite and the epoxy emulsion.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described below in conjunction with the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

An anticorrosive coating for fan blades comprises the following raw materials in parts by weight: 70 parts of epoxy emulsion, 6 parts of nano filler, 8 parts of modified vermiculite, 1 part of carboxymethyl cellulose, 2 parts of propylene glycol butyl ether, 5 parts of curing agent, 6 parts of nano cellulose and 30 parts of deionized water.

The nano filler comprises nano titanium dioxide and nano calcium carbonate, and the mass ratio of the nano titanium dioxide to the nano calcium carbonate is 1: 1; the curing agent is aliphatic amine.

The preparation method of the modified vermiculite comprises the following steps:

s1: putting vermiculite in a muffle furnace, calcining for 2min at 500 ℃, then putting the calcined vermiculite in a sodium chloride solution, and stirring for 0.5h at the rotating speed of 300r/min to obtain an intermediate vermiculite;

s2: and uniformly dispersing cetyl trimethyl ammonium bromide and the intermediate vermiculite in distilled water, stirring for 0.8h, filtering and drying to obtain the modified vermiculite.

The mass ratio of the vermiculite to the sodium chloride solution is 1: and 60, the mass concentration of the sodium chloride solution is 1 mol/L.

The preparation method of the anticorrosive coating for the fan blade comprises the following steps:

(1) putting deionized water, modified vermiculite and nano filler into a stirrer, and stirring at the rotating speed of 800r/min for 25min to obtain a mixture A;

(2) putting the epoxy emulsion, the carboxymethyl fiber, the propylene glycol butyl ether and the nano-cellulose into an electric heating stirrer, and stirring at the rotating speed of 1300r/min for 25min at the temperature of 35 ℃ to obtain a mixture B;

(3) and (3) putting the mixture A and the curing agent into an electric heating stirrer to be mixed with the mixture B, and uniformly stirring to obtain the anti-corrosion coating.

Example 2

An anticorrosive coating for fan blades comprises the following raw materials in parts by weight: 72 parts of epoxy emulsion, 7 parts of nano filler, 9 parts of modified vermiculite, 1 part of carboxymethyl cellulose, 2 parts of propylene glycol butyl ether, 6 parts of curing agent, 8 parts of nano cellulose and 32 parts of deionized water.

The nano filler comprises nano titanium dioxide and nano calcium carbonate, and the mass ratio of the nano titanium dioxide to the nano calcium carbonate is 1: 1; the curing agent is aromatic amine.

The preparation method of the modified vermiculite comprises the following steps:

s1: putting vermiculite in a muffle furnace, calcining for 3min at 550 ℃, then putting the calcined vermiculite in a sodium chloride solution, and stirring for 0.5h at the rotating speed of 400r/min to obtain an intermediate vermiculite;

s2: and uniformly dispersing cetyl trimethyl ammonium bromide and intermediate vermiculite in distilled water, stirring for 1h, filtering and drying to obtain the modified vermiculite.

The mass ratio of the vermiculite to the sodium chloride solution is 1: 70, the mass concentration of the sodium chloride solution is 1 mol/L.

The preparation method of the anticorrosive coating for the fan blade comprises the following steps:

(1) putting deionized water, modified vermiculite and nano filler into a stirrer, and stirring at the rotating speed of 1000r/min for 30min to obtain a mixture A;

(2) putting the epoxy emulsion, the carboxymethyl fiber, the propylene glycol butyl ether and the nano-cellulose into an electric heating stirrer, and stirring at the rotating speed of 1300r/min for 25min at the temperature of 35 ℃ to obtain a mixture B;

(3) and (3) putting the mixture A and the curing agent into an electric heating stirrer to be mixed with the mixture B, and uniformly stirring to obtain the anti-corrosion coating.

Example 3

An anticorrosive coating for fan blades comprises the following raw materials in parts by weight: 75 parts of epoxy emulsion, 8 parts of nano filler, 10 parts of modified vermiculite, 1.5 parts of carboxymethyl cellulose, 2.5 parts of propylene glycol butyl ether, 8 parts of curing agent, 10 parts of nano fiber and 35 parts of deionized water.

The nano filler comprises nano titanium dioxide and nano calcium carbonate, and the mass ratio of the nano titanium dioxide to the nano calcium carbonate is 1: 1; the curing agent is aliphatic amine.

The preparation method of the modified vermiculite comprises the following steps:

s1: putting vermiculite in a muffle furnace, calcining for 3min at 550 ℃, then putting the calcined vermiculite in a sodium chloride solution, and stirring for 0.8h at the rotating speed of 400r/min to obtain an intermediate vermiculite;

s2: and uniformly dispersing cetyl trimethyl ammonium bromide and intermediate vermiculite in distilled water, stirring for 1h, filtering and drying to obtain the modified vermiculite.

The mass ratio of the vermiculite to the sodium chloride solution is 1: 70, the mass concentration of the sodium chloride solution is 1 mol/L.

The preparation method of the anticorrosive coating for the fan blade comprises the following steps:

(1) putting deionized water, modified vermiculite and nano filler into a stirrer, and stirring at the rotating speed of 1000r/min for 30min to obtain a mixture A;

(2) putting the epoxy emulsion, the carboxymethyl fiber, the propylene glycol butyl ether and the nano-cellulose into an electric heating stirrer, and stirring at the rotating speed of 1300r/min for 28min at 40 ℃ to obtain a mixture B;

(3) and (3) putting the mixture A and the curing agent into an electric heating stirrer to be mixed with the mixture B, and uniformly stirring to obtain the anti-corrosion coating.

Example 4

An anticorrosive coating for fan blades comprises the following raw materials in parts by weight: 78 parts of epoxy emulsion, 8 parts of nano filler, 11 parts of modified vermiculite, 2 parts of carboxymethyl cellulose, 3 parts of propylene glycol butyl ether, 9 parts of curing agent, 11 parts of nano cellulose and 36 parts of deionized water.

The nano filler comprises nano titanium dioxide and nano calcium carbonate, and the mass ratio of the nano titanium dioxide to the nano calcium carbonate is 1: 1; the curing agent is aliphatic amine.

The preparation method of the modified vermiculite comprises the following steps:

s1: putting vermiculite in a muffle furnace, calcining for 3min at 550 ℃, then putting the calcined vermiculite in a sodium chloride solution, and stirring for 0.8h at the rotating speed of 400r/min to obtain an intermediate vermiculite;

s2: and uniformly dispersing cetyl trimethyl ammonium bromide and intermediate vermiculite in distilled water, stirring for 1h, filtering and drying to obtain the modified vermiculite.

The mass ratio of the vermiculite to the sodium chloride solution is 1: 70, the mass concentration of the sodium chloride solution is 1 mol/L.

The preparation method of the anticorrosive coating for the fan blade comprises the following steps:

(1) putting deionized water, modified vermiculite and nano filler into a stirrer, and stirring at the rotating speed of 1000r/min for 30min to obtain a mixture A;

(2) putting the epoxy emulsion, the carboxymethyl fiber, the propylene glycol butyl ether and the nano-cellulose into an electric heating stirrer, and stirring at the rotating speed of 1300r/min for 28min at 40 ℃ to obtain a mixture B;

(3) and (3) putting the mixture A and the curing agent into an electric heating stirrer to be mixed with the mixture B, and uniformly stirring to obtain the anti-corrosion coating.

Example 5

An anticorrosive coating for fan blades comprises the following raw materials in parts by weight: 80 parts of epoxy emulsion, 9 parts of nano filler, 12 parts of modified vermiculite, 2 parts of carboxymethyl cellulose, 3 parts of propylene glycol butyl ether, 10 parts of curing agent, 12 parts of nano cellulose and 40 parts of deionized water.

The nano filler comprises nano titanium dioxide and nano calcium carbonate, and the mass ratio of the nano titanium dioxide to the nano calcium carbonate is 1: 1; the curing agent is ethylenediamine.

The preparation method of the modified vermiculite comprises the following steps:

s1: putting vermiculite in a muffle furnace, calcining for 5min at 600 ℃, then putting the calcined vermiculite in a sodium chloride solution, and stirring for 1h at the rotating speed of 500r/min to obtain an intermediate vermiculite;

s2: and uniformly dispersing cetyl trimethyl ammonium bromide and intermediate vermiculite in distilled water, stirring for 1.5h, filtering and drying to obtain the modified vermiculite.

The mass ratio of the vermiculite to the sodium chloride solution is 1: and 80, the mass concentration of the sodium chloride solution is 1 mol/L.

The preparation method of the anticorrosive coating for the fan blade comprises the following steps:

(1) putting deionized water, modified vermiculite and nano filler into a stirrer, and stirring at the rotating speed of 1200r/min for 35min to obtain a mixture A;

(2) putting the epoxy emulsion, the carboxymethyl fiber, the propylene glycol butyl ether and the nano-cellulose into an electric heating stirrer, and stirring at the rotating speed of 1500r/min for 30min at the temperature of 45 ℃ to obtain a mixture B;

(3) and (3) putting the mixture A and the curing agent into an electric heating stirrer to be mixed with the mixture B, and uniformly stirring to obtain the anti-corrosion coating.

Performance detection

The test method comprises the following steps: the anti-corrosion coatings of examples 1-5 were sprayed on the surfaces of 5 steel products, respectively, and tested according to GB/T1720-. Specific detection results are shown in table 1.

TABLE 1 Performance test

Group of	Salt spray resistance/1200 h	Corrosion resistance/1200 h
			Example 1	Qualified	No rust
Example 2	Qualified	No rust
			Example 3	Qualified	No rust
Example 4	Qualified	No rust
			Example 5	Qualified	No rust

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.