CN113292899A - Acid-resistant paint coated on surface of 304 stainless steel cutter and preparation method thereof - Google Patents
Acid-resistant paint coated on surface of 304 stainless steel cutter and preparation method thereof Download PDFInfo
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- CN113292899A CN113292899A CN202110443791.5A CN202110443791A CN113292899A CN 113292899 A CN113292899 A CN 113292899A CN 202110443791 A CN202110443791 A CN 202110443791A CN 113292899 A CN113292899 A CN 113292899A
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- epoxy resin
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D161/00—Coating compositions based on condensation polymers of aldehydes or ketones; Coating compositions based on derivatives of such polymers
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- 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
-
- 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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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
The application relates to the field of coatings, and particularly discloses an acid-resistant coating coated on the surface of a 304 stainless steel cutter and a preparation method thereof. The acid-resistant coating comprises a component A and a component B, wherein the component A comprises modified epoxy resin, an auxiliary agent and an inorganic pigment and filler, and the component B comprises a tertiary amine curing agent and an auxiliary agent B; the preparation method comprises the following steps: respectively preparing the component A and the component B, then weighing the component A and the component B according to the proportion, and uniformly mixing to obtain the acid-resistant coating. The acid-resistant coating can be used for coating on the surface of a cutter so as to improve the acid resistance of the cutter.
Description
Technical Field
The application relates to the field of coatings, in particular to an acid-resistant coating coated on the surface of a 304 stainless steel cutter and a preparation method thereof.
Background
304 stainless steel is a common material in stainless steel, has a density of 7.93g/cm and is also known as 18/8 stainless steel in the industry. The high temperature resistant 800 ℃, has the characteristics of good processing performance and high toughness, and is widely used in industry, furniture decoration industry and food medical industry.
However, when the 304 stainless steel knife is used for cutting acidic substances such as tomatoes, onions, pineapples and the like, the acid reacts with iron contained in the knife, thereby causing the knife to be corroded.
Disclosure of Invention
In order to solve the problem that a cutter is easy to corrode when cutting acidic substances, the application provides an acid-resistant paint coated on the surface of a 304 stainless steel cutter and a preparation method thereof.
In a first aspect, the application provides an acid-resistant paint coated on the surface of a 304 stainless steel cutter, which adopts the following technical scheme:
an acid-resistant coating coated on the surface of a 304 stainless steel cutter mainly comprises a component A and a component B, wherein the mass ratio of the component A to the component B is (17-18): (2-3), wherein the component A comprises the following components in parts by mass: 30-40% of modified epoxy resin, 1-3% of auxiliary agent and 65-75% of inorganic pigment and filler; the component B is a tertiary amine curing agent.
By adopting the technical scheme, the acid-resistant coating is coated on the surface of the 304 stainless steel cutter, so that iron in the cutter is not easy to react with acid when the cutter coated with the coating cuts acidic substances, and the cutter is not easy to corrode.
Epoxy resins are reactive, strongly cohesive, wetting, adhesive and alkali resistant. However, the acid resistance of the epoxy resin is weak, and the acid resistance of the modified epoxy resin obtained by modifying the epoxy resin with the furfuryl alcohol resin is greatly improved compared with that of the epoxy resin before modification.
This is because when furfuryl alcohol resin modifies epoxy resin, dehydration condensation of hydroxyl groups and ring-opening addition reaction of epoxy groups occur, and a C-O-C bond is formed, so that the acid resistance of the modified epoxy resin is stronger than that of the epoxy resin before modification.
Preferably, the mass ratio of the furfuryl alcohol resin to the epoxy resin is (1-3): 1.
by adopting the technical scheme, when the mass ratio of the furfuryl alcohol resin to the epoxy resin is (1-3): within the range of 1, the furfuryl alcohol resin has a good effect of modifying the epoxy resin so as to improve the acid resistance of the modified epoxy resin.
Preferably, the epoxy resin is one or a mixture of two of epoxy resin E-44 and epoxy resin E-51.
By adopting the technical scheme, the epoxy resin E-51 has small molecular weight, is easy to generate crosslinking during reaction and is not beneficial to modification.
When the epoxy resin consists of the epoxy resin E-44 and the epoxy resin E-51, the furfuryl alcohol resin has better modification effect on the epoxy resin.
Preferably, the epoxy resin is a mixture of epoxy resin E-44 and epoxy resin E-51, and the mass ratio of the epoxy resin E-44 to the epoxy resin E-51 is (1-3): 2.
By adopting the technical scheme, the mass ratio of the epoxy resin E-44 to the epoxy resin E-51 is (1-3): when the amount is within 2, the furfuryl alcohol resin has the best effect of modifying the epoxy resin.
If the content of the epoxy resin E-51 is too large, crosslinking tends to occur during the reaction, which is disadvantageous in modification.
Preferably, the auxiliary agent is one or a mixture of more than two of a dispersing agent, a defoaming agent, a base material wetting agent and a rheological auxiliary agent.
By adopting the technical scheme, the addition of the auxiliary agents is beneficial to uniformly distributing the inorganic pigment and filler in an epoxy resin system, so that the raw materials are uniformly distributed, and the prepared coating has balanced performance.
Preferably, the inorganic pigment and filler is one or a mixture of more than two of barite powder, talcum powder, titanium dioxide, corundum powder, quartz sand and zinc oxide.
By adopting the technical scheme, the addition of the inorganic pigment and filler can increase the adhesive force, and when the coating is cured into a film, the volume shrinkage is often accompanied, the internal stress is generated, and the adhesive force of the coating is influenced. After the inorganic pigment and filler are added, the shrinkage can be reduced, and the adhesive force can be increased. Meanwhile, the addition of the inorganic pigment and filler can increase the volume of the coating and greatly reduce the cost.
Wherein, the titanium dioxide has very strong tinting strength and covering power, and has the advantages of light resistance, heat resistance, dilute acid resistance, alkali resistance and the like. The titanium dioxide is matched with alumina, zinc oxide and the like for use, and the light resistance of the titanium dioxide can be improved.
The talcum powder can improve the rheological property of the paint, such as reducing the pigment sinking, preventing the paint from sagging, improving the brushing property and absorbing the stretching stress. The addition of the talcum powder can avoid the occurrence of cracks and gaps after the coating is cured, thereby increasing the durability of the coating.
The quartz sand has the advantages of good chemical stability, low price, good brushing property, good weather resistance and the like.
Preferably, the tertiary amine curing agent is one of 2, 4, 6-tris (dimethylaminomethyl) phenol, N-dimethylbenzylamine and triethanolamine.
By adopting the technical scheme, the modified epoxy resin forms a cross-linking network mainly composed of ether bonds by the tertiary amine in the tertiary amine curing agent through an anion ring-opening polymerization mechanism, so that the flexibility of the chain segment is better, and the impact resistance is also better.
The tertiary amine curing agent can also be used as an accelerator for the modified epoxy resin, so that the curing speed of the modified epoxy resin is improved.
In a second aspect, the application provides a preparation method of an acid-resistant coating coated on the surface of a 304 stainless steel cutter, which adopts the following technical scheme:
a preparation method of an acid-resistant paint coated on the surface of a 304 stainless steel cutter comprises the following steps:
s1 preparation of component A
a1, weighing the modified epoxy resin and the auxiliary agent according to the proportion, and uniformly mixing to obtain a mixture 1;
2, adding inorganic pigment and filler into the mixture 1 according to the proportion, dispersing uniformly and grinding until the fineness is within the range of 40-50 μm to obtain a component A for later use;
s2 preparation of component B
Uniformly mixing a tertiary amine curing agent and an auxiliary agent B to obtain a component B for later use;
s3 preparation of coating
Weighing the component A and the component B according to the proportion, and uniformly mixing to obtain the acid-resistant paint.
In summary, the present application has the following beneficial effects:
1. because the acid-resistant coating is prepared by adopting the modified epoxy resin system, the furfuryl alcohol resin modifies the epoxy resin, so that the modified epoxy resin has good acid resistance, the prepared acid-resistant coating has good acid resistance, and a cutter coated with the acid-resistant coating is not easy to corrode;
2. the mass ratio of the epoxy resin E-44 to the epoxy resin E-51 is preferably (1-3): 2, and within the range, the furfuryl alcohol resin has the best modification effect on the epoxy resin;
3. the method can be prepared through a simple mixing process, the preparation process is simple, the component A and the component B can be independently prepared for standby application, and the component A and the component B only need to be mixed in proportion when the acid-resistant coating needs to be prepared.
Detailed Description
The present application will be described in further detail with reference to examples.
The furfuryl alcohol resin, epoxy resin E-44, and epoxy resin E-51, which are all commercially available herein.
The auxiliaries in this application, including dispersants, defoamers, substrate wetting agents and rheology auxiliaries, are all commercially available.
In the application, the inorganic pigment and filler is preferably barite powder, talcum powder, titanium dioxide, corundum powder, quartz sand and zinc oxide, and is commercially available.
The tertiary amine-based curing agents herein, preferably 2, 4, 6-tris (dimethylaminomethyl) phenol, N-dimethylbenzylamine and triethanolamine, are commercially available.
Preparation example of modified epoxy resin
The modified epoxy resin is modified by furfuryl alcohol resin, and the mass ratio of the furfuryl alcohol resin to the epoxy resin is (1-3): 1.
the epoxy resin is one or a mixture of two of epoxy resin E-44 and epoxy resin E-51.
The epoxy resin is preferably a mixture of epoxy resin E-44 and epoxy resin E-51 in a mass ratio of (1-3): 2.
Preparation example 1
The preparation process of the modified epoxy resin comprises the following preparation steps:
step one, weighing epoxy resin E-44 and epoxy resin E-51 according to the mass ratio of 1:1, and uniformly mixing to obtain epoxy resin for later use;
and step two, weighing the furfuryl alcohol resin and the epoxy resin according to the mass ratio of 1:1, uniformly mixing, and then reacting for 5 hours at 120 ℃ to obtain the modified epoxy resin.
Preparation example 2
The preparation process of the modified epoxy resin in the preparation example is the same as that of the preparation example 1, except that in the step one, the mass ratio of the epoxy resin E-44 to the epoxy resin E-51 is 3: 2.
preparation example 3
The preparation process of the modified epoxy resin in this preparation example is the same as that of preparation example 1, except that in step one, the epoxy resin is only epoxy resin E-44.
Preparation example 4
The preparation process of the modified epoxy resin in this preparation example is the same as that of preparation example 1, except that in step one, the epoxy resin is only epoxy resin E-51.
Preparation example 5
The preparation process of the modified epoxy resin in the preparation example is the same as that of the preparation example 1, except that in the step two, the ratio of the furfuryl alcohol resin to the epoxy resin is 2: 1.
Preparation example 6
The preparation process of the modified epoxy resin in the preparation example is the same as that of the preparation example 1, except that in the step two, the ratio of the furfuryl alcohol resin to the epoxy resin is 3: 1.
Comparative preparation example 1
The preparation process of the modified epoxy resin in this comparative preparation example was the same as that of preparation example 1 except that in step two, the ratio of furfuryl alcohol resin to epoxy resin was 4: 1.
Examples
An acid-resistant coating coated on the surface of a 304 stainless steel cutter mainly comprises a component A and a component B, wherein the mass ratio of the component A to the component B is (17-18): (2-3), wherein the component A comprises the following components in percentage by mass: 30-40% of any one of the modified epoxy resin in preparation examples 1-6, 1-3% of an auxiliary agent and 65-75% of an inorganic pigment and filler; the component B is a tertiary amine curing agent, and the modified epoxy resin is modified by furfuryl alcohol resin.
The auxiliary agent comprises a dispersing agent, a defoaming agent, a base material wetting agent and a rheological auxiliary agent.
The inorganic pigment and filler is one or a mixture of more than two of barite powder, talcum powder, titanium pigment, corundum powder, quartz sand and zinc oxide.
Talcum powder, titanium dioxide and quartz sand are preferably adopted in the application.
A preparation method of an acid-resistant paint coated on the surface of a 304 stainless steel cutter comprises the following steps:
s1 preparation of component A
a1, weighing any one of the modified epoxy resin and the auxiliary agent in the preparation examples 1-6 in proportion, and uniformly mixing to obtain a mixture 1;
2, adding inorganic pigment and filler into the mixture 1 according to the proportion, dispersing uniformly and grinding until the fineness is within the range of 40-50 μm to obtain a component A for later use;
s2 preparation of component B
Uniformly mixing a tertiary amine curing agent and an auxiliary agent B to obtain a component B for later use;
s3 preparation of coating
Weighing the component A and the component B according to the proportion, and uniformly mixing to obtain the acid-resistant paint.
Example 1
A preparation method of an acid-resistant paint coated on the surface of a 304 stainless steel cutter comprises the following steps:
s1 preparation of component A
a1, weighing the modified epoxy resin prepared in the preparation example 1 and the auxiliary agent in proportion, and uniformly mixing to obtain a mixture 1;
2, adding inorganic pigment and filler into the mixture 1 according to the proportion, dispersing uniformly and grinding until the fineness is within the range of 40-50 μm to obtain a component A for later use;
s2 preparation of component B
Uniformly mixing a tertiary amine curing agent and an auxiliary agent B to obtain a component B for later use;
s3 preparation of coating
Weighing the component A and the component B according to the mass ratio of 17:3, and uniformly mixing to obtain the acid-resistant paint.
Examples 2 to 3
The acid-resistant paints of examples 2-3 were prepared in the same manner as in example 1, except that the components and the amounts thereof were different in the acid-resistant paints, as shown in Table 1.
TABLE 1 acid-resistant coating compositions and amounts thereof for examples 1-3
Example 4
The acid-resistant paint in this application was prepared in the same manner as in example 1 except that the mass ratio of the a component to the B component in S3 was 18: 2.
Example 5
The acid-resistant paint in this example was prepared in the same manner as in example 1 except that the modified epoxy resin obtained in preparation example 2 was used as the modified epoxy resin.
Example 6
The acid-resistant paint in this example was prepared in the same manner as in example 1 except that the modified epoxy resin obtained in preparation example 3 was used as the modified epoxy resin.
Example 7
The acid-resistant paint in this example was prepared in the same manner as in example 1 except that the modified epoxy resin obtained in preparation example 4 was used as the modified epoxy resin.
Example 8
The acid-resistant paint in this example was prepared in the same manner as in example 1 except that the modified epoxy resin obtained in preparation example 5 was used as the modified epoxy resin.
Example 9
The acid-resistant paint in this example was prepared in the same manner as in example 1 except that the modified epoxy resin obtained in preparation example 6 was used as the modified epoxy resin.
Comparative example
Comparative example 1
The acid-resistant paint in this comparative example was prepared in the same manner as in example 1 except that the modified epoxy resin obtained in comparative example 1 was used as the modified epoxy resin.
Comparative example 2
The acid-resistant paint in this comparative example was prepared in the same manner as in example 1 except that the epoxy resin was not modified with furfuryl alcohol resin.
Test method
Acid resistance: coating an acid-resistant paint on tinplate, drying, soaking in a dilute sulfuric acid solution in a thermostat at 50 ℃ for 3d, observing the damage degree of the soaked coating, and classifying the damage grade into one to four grades, wherein the four grades have the worst acid resistance;
adhesion force: the test was carried out according to GB/T1720-1979 "paint adhesion determination"; the adhesion ratings were classified into one to seven grades, with seven grades having the worst adhesion.
TABLE 2 test results of examples 1-5
As can be seen by combining examples 1-3 and Table 2, the acid-resistant coating prepared by the method has good acid resistance, and the coating formed by the coating has good adhesion and can be used in an acid environment for a long time.
Combining example 1 and example 4 and table 2, it can be seen that the mass ratio of the a component to the B component in example 4 is 18:2, and the mass ratio of the a component to the B component in example 1 is 17:3, the acid resistance and the adhesion have no obvious change, which shows that the mass ratio of the component A to the component B is (17-18): and (2-3), the prepared acid-resistant coating has good acid resistance and adhesive force.
By combining example 1 and example 5 and table 2, it can be seen that example 5 selects the modified epoxy resin prepared in preparation example 2, wherein the mass ratio of the epoxy resin E-44 to the epoxy resin E-51 is 3: 2, compared with the mass ratio of the epoxy resin E-44 to the epoxy resin E-51 in the example 1, the mass ratio is 1:1, the acid resistance of the paint has no obvious change, and the adhesive force is reduced to some extent.
By combining example 1 and example 6 and table 2, it can be seen that example 6 selects the modified epoxy resin prepared in preparation example 3, wherein the epoxy resin is only epoxy resin E-44, compared with example 1 in which the mass ratio of epoxy resin E-44 to epoxy resin E-51 is 1:1, the adhesive force is not obviously changed, and the acid resistance is reduced.
By combining example 1 and example 7 and table 2, it can be seen that example 7 selects the modified epoxy resin prepared in preparation example 4, wherein the epoxy resin is only epoxy resin E-51, and compared with example 1, the mass ratio of epoxy resin E-44 to epoxy resin E-51 is 1:1, the adhesive force and the acid resistance are obviously reduced.
The reason for this may be: the epoxy resin E-51 has a small molecular weight, and is easily crosslinked during reaction, which is not favorable for modification.
Combining example 1 with examples 8-9 and table 2, it can be seen that the ratio of furfuryl alcohol resin to epoxy resin is 2:1 in example 8, as compared to 1 in example 1:1, the adhesive force and the acid resistance of the paint have no obvious change.
The ratio of furfuryl alcohol resin to epoxy resin in example 9 was 3:1, compared to 1 for example 1:1, the adhesive force and the acid resistance of the paint have no obvious change.
Combining example 1 and comparative example 1 and table 2, it can be seen that the ratio of furfuryl alcohol resin to epoxy resin in comparative example 1 is 4:1, compared to 1 in example 1:1, the adhesive force and the acid resistance of the paint are reduced, and the adhesive force is obviously reduced.
It can be seen from the combination of example 1 and comparative example 2 and table 2 that the epoxy resin in comparative example 2 is not modified with furfuryl alcohol resin, and the adhesion and acid resistance are greatly reduced compared to the epoxy resin modified with furfuryl alcohol resin in example 1.
The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.
Claims (8)
1. The acid-resistant coating coated on the surface of a 304 stainless steel cutter is characterized by mainly comprising a component A and a component B, wherein the mass ratio of the component A to the component B is (17-18): (2-3), wherein the component A comprises the following components in parts by mass: 30-40% of modified epoxy resin, 1-3% of auxiliary agent and 65-75% of inorganic pigment and filler; the component B is a tertiary amine curing agent, and the modified epoxy resin is modified by furfuryl alcohol resin.
2. The acid-resistant coating applied to the surface of the 304 stainless steel cutter according to claim 1, wherein: the mass ratio of the furfuryl alcohol resin to the epoxy resin is (1-3): 1.
3. the acid-resistant coating applied to the surface of the 304 stainless steel tool according to claim 1 or 2, wherein: the epoxy resin is one or a mixture of two of epoxy resin E-44 and epoxy resin E-51.
4. The acid-resistant coating applied to the surface of the 304 stainless steel cutter according to claim 3, wherein: the epoxy resin is a mixture of epoxy resin E-44 and epoxy resin E-51, and the mass ratio of the epoxy resin E-44 to the epoxy resin E-51 is (1-3): 2.
5. The acid-resistant coating applied to the surface of the 304 stainless steel cutter according to claim 1, wherein: the auxiliary agent is one or a mixture of more than two of a dispersing agent, a defoaming agent, a base material wetting agent and a rheological auxiliary agent.
6. The acid-resistant coating applied to the surface of the 304 stainless steel cutter according to claim 1, wherein: the inorganic pigment filler is one or a mixture of more than two of barite powder, talcum powder, titanium dioxide, corundum powder, quartz sand and zinc oxide.
7. The acid-resistant coating applied to the surface of the 304 stainless steel cutter according to claim 1, wherein: the tertiary amine curing agent is one of 2, 4, 6-tri (dimethylaminomethyl) phenol, N-dimethylbenzylamine and triethanolamine.
8. The method for preparing an acid-resistant paint applied to the surface of a 304 stainless steel cutter as claimed in any one of claims 1 to 7, comprising the steps of:
s1 preparation of component A
a1, weighing the modified epoxy resin and the auxiliary agent according to the proportion, and uniformly mixing to obtain a mixture 1;
2, adding inorganic pigment and filler into the mixture 1 according to the proportion, dispersing uniformly and grinding until the fineness is within the range of 40-50 μm to obtain a component A for later use;
s2 preparation of component B
Uniformly mixing a tertiary amine curing agent and an auxiliary agent B to obtain a component B for later use;
s3 preparation of coating
Weighing the component A and the component B according to the proportion, and uniformly mixing to obtain the acid-resistant paint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110443791.5A CN113292899A (en) | 2021-04-23 | 2021-04-23 | Acid-resistant paint coated on surface of 304 stainless steel cutter and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110443791.5A CN113292899A (en) | 2021-04-23 | 2021-04-23 | Acid-resistant paint coated on surface of 304 stainless steel cutter and preparation method thereof |
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| Publication Number | Publication Date |
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| CN113292899A true CN113292899A (en) | 2021-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110443791.5A Pending CN113292899A (en) | 2021-04-23 | 2021-04-23 | Acid-resistant paint coated on surface of 304 stainless steel cutter and preparation method thereof |
Country Status (1)
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| CN (1) | CN113292899A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6065073A (en) * | 1983-09-20 | 1985-04-13 | Dainippon Toryo Co Ltd | Long-period rustproof coating composition |
-
2021
- 2021-04-23 CN CN202110443791.5A patent/CN113292899A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6065073A (en) * | 1983-09-20 | 1985-04-13 | Dainippon Toryo Co Ltd | Long-period rustproof coating composition |
Non-Patent Citations (4)
| Title |
|---|
| S MOHAJERI等: "Epoxy matrix toughness improvement", 《HIGH PERFORMANCE POLYMERS》 * |
| 何卫东等: "《高分子化学实验 第2版》", 30 September 2012, 中国科学技术大学出版社 * |
| 佚名: "《化工设备防腐蚀涂层》", 30 June 1972, 上海人民出版社 * |
| 秦国治等: "《石油化工厂设备检修手册 第四分册 防腐蚀工程》", 31 August 1996, 中国石化出版社 * |
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Application publication date: 20210824 |
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