KR20220132803A - A composition of anti-corrosion and moisture absorbent and production of anti-corrosion and moisture absorbent manufacturing thereof - Google Patents

Abstract

The present invention relates to an anti-rust and moisture-proof composition and an anti-rust and moisture-proof product manufactured therefrom. Unlike a conventional anti-rust agent or a conventional moisture-absorbing agent, the anti-rust and moisture-proof composition according to the present invention comprises both a vaporizable anti-rust agent and a moisture-absorbing component. In addition, with the moisture-absorbing agent, an organic moisture-absorbing agent and an inorganic moisture-absorbing agent are dualized. Therefore, durability of a gel formed after moisture absorption is enhanced, and liquefaction and development of deliquescence may be prevented. Accrodingly, leakage of a deliquescent solution of the inorganic moisture-absorbing agent is prevented, and rust prevention is greatly improved. The anti-rust and moisture-proof composition according to the present invention has excellent stability even after the moisture absorption. Therefore, generation of contamination, rusting, and so on due to phase separation, gelation, transition, and so on can be effectively prevented. The anti-rust and moisture-proof composition may be used as a humidity regulator or an anti-rust agent, inside a container, when transporting ferrous or non-ferrous metals.

Description

A composition of anti-corrosion and moisture absorbent and production of anti-corrosion and moisture absorbent manufacturing thereof

The present invention relates to a rust-preventing and moisture-proof composition and a rust-proof and moisture-proof product prepared therefrom, and more particularly, includes a vaporizable rust preventive agent and a moisture absorption component, but strengthens the durability of the gel formed after moisture absorption to prevent liquefaction and deliquescent expression, and to prevent rust It relates to a rust-proof and moisture-proof composition capable of increasing

As industries using various metal processing and metal materials develop, problems with corrosion of metal products continue to occur, and losses in the metal industry are also greatly increased. Therefore, in order to prevent corrosion of metals during transportation or storage for a certain period of time, treatment with a desiccant is essential.

The conventionally used desiccant is effective for short-term moisture absorption and rust prevention, but has a limitation in its performance when stored, transported and stored under long-term and high-temperature conditions. There was a problem that caused

In general, under the conditions of 40°C and 90% RH, the moisture absorption of silica gel is 30 to 35%, quicklime (CaO) is 30%, and clay is around 30%, and calcium chloride has a moisture absorption rate of 150 to 160%, which is very excellent. However, unlike the previous materials, it releases moisture that has absorbed moisture again and becomes a liquid, causing a side effect of causing corrosion.

Accordingly, a technology that simultaneously imparts a vaporization and rust prevention function to a desiccant (Korean Patent No. 0838747) has been recently developed. Since there is still a possibility of reversing moisture release after excessive moisture absorption, research to compensate for these problems is continuing.

Republic of Korea Patent No. 10-1276753 (June 20, 2013)

The present invention has been devised to solve the above disadvantages, and specifically, includes a vaporizable rust preventive agent and a moisture absorption component, but strengthens the durability of the gel formed after moisture absorption to prevent liquefaction and deliquescent expression and enhance rust prevention And it aims to provide a moisture-proof composition and a rust-proof and moisture-proof product prepared therefrom.

The present invention relates to a rust-proof and moisture-proof composition and a rust-proof and moisture-proof product prepared therefrom.

One aspect of the present invention is any one selected from polyvinyl alcohol, polyacrylamide-based, polyacrylamide copolymer, cross-linked polyethylene oxide, cross-linked carboxymethyl cellulose, ethylene-maleic anhydride copolymer, and styrene-maleic anhydride copolymer or a plurality of organic desiccants; any one or a plurality of inorganic moisture absorbents selected from metal oxides, metal phosphates and metal carbonates; and any one selected from triethylamine, hexamethylamine, hexamethylenetetramine, ethanolamine, dimethylethanolamine, benzotriazole, tolytriazole, trimethyltetrahydroxypyrazole, sodium benzoate and ammonium benzoate; It relates to a rust-preventive and moisture-proof composition comprising a plurality of vaporizable rust preventive agents.

In the present invention, the rust-preventive and moisture-proof composition comprises 60 to 80% by weight of an organic desiccant, 10 to 30% by weight of an inorganic desiccant, and 1 to 10% by weight of a vaporizable rust preventive agent.

In addition, the organic desiccant is preferably a polyacrylamide-sodium acrylate copolymer, and the inorganic desiccant is any one or more selected from sodium hydrogen carbonate, sodium carbonate, potassium oxide, potassium phosphate and sodium phosphate, and the vaporizable rust preventive agent is hexadecimal. It is characterized in that methylenetetramine and benzotriazole are mixed in a ratio of 1 to 2: 0.1 to 1 by weight.

In addition, the anti-rust and moisture-proof composition is a filler, thickener, hydration heat reducing agent, anti-caking agent, catalyst, surface-active additive, emulsifier, reaction retardant, pigment, dye, flame retardant, anti-aging agent, phase change material, scorch inhibitor , It is characterized in that it comprises any one or a plurality of additives selected from a plasticizer and an antibacterial agent.

Another aspect of the present invention relates to a rust-proof and moisture-proof product comprising the anti-rust and moisture-proof composition according to the above, wherein the anti-rust and moisture-proof product is a breathable non-woven fabric layer with any one selected from polyolefin, polyester, polyamide and polyacrylic; It is characterized in that a plurality of film layers of a polymer material are accommodated in a packaging material having a structure in which at least one layer is stacked.

The rust-preventive and moisture-proof composition according to the present invention includes both a vaporizable rust preventive agent and a moisture absorbent component differently from a conventional rust preventive agent or desiccant, but by dualizing it into an organic desiccant and an inorganic desiccant as a desiccant. The expression can be prevented, and through this, the deliquescent solution of the inorganic desiccant is prevented from leaking and has the effect of greatly increasing the rust prevention property.

The anti-rust and moisture-proof composition according to the present invention has excellent stability even after moisture absorption, and can effectively prevent contamination and rust occurrence due to phase separation, gelation, transition, etc. It can be used as a rust inhibitor.

Hereinafter, by way of Examples and Comparative Examples, the rust-preventive and moisture-proof composition according to the present invention and the rust-proof and moisture-proof product prepared therefrom will be described in more detail. However, the embodiments introduced below are provided as examples so that the spirit of the present invention can be sufficiently conveyed to those skilled in the art.

Therefore, the present invention is not limited to the embodiments presented below and may be embodied in other forms, and the embodiments presented below are only described to clarify the spirit of the present invention, and the present invention is not limited thereto.

At this time, unless there are other definitions in the technical terms and scientific terms used, it has the meaning commonly understood by those of ordinary skill in the technical field to which this invention belongs, and in the following description, it may unnecessarily obscure the subject matter of the present invention. Descriptions of possible known functions and configurations will be omitted.

Also, the singular forms used in the specification and appended claims may also be intended to include the plural forms unless the context specifically dictates otherwise.

The anti-rust and moisture-proof composition according to the present invention and the anti-rust and moisture-proof product prepared therefrom may be prepared including an organic desiccant, an inorganic desiccant and a vaporizable rust preventive agent.

In the present invention, the organic desiccant absorbs moisture in the air by assisting the inorganic desiccant, absorbs water and swells and gels. It is possible to suppress the release of the inorganic desiccant solution.

As the organic desiccant, for example, polyvinyl alcohol, polyacrylamide copolymer, cross-linked polyethylene oxide, cross-linked carboxymethyl cellulose, ethylene-maleic anhydride copolymer, styrene-maleic anhydride copolymer, or polyacrylamide-acrylic acid metal salt. polyacrylamide, etc., in addition to methylcellulose, hydroxyethylcellulose, casein, sodium caseinate, ammonium caseinate, polyvinyl alcohol, polyvinylpyrrolidone, guar gum, xanthan gum, gum arabic, gatti gum, locust Bean gum, damma gum, gellan gum, rosin gum, karaya gum, copal gum, tara gum, tamarind gum, tragacanth gum, unmodified starch, modified starch, polyN-vinylacetamide, tetrafluoroethylene-polyfluoride Propylene copolymer, tetrafluoroethylene-polyfluoroalkylvinyl ether copolymer, polyvinyl fluoride, polyvinylidene fluoride, styrene-butadiene copolymer, polyvinylpyridine, vinylpyridine-methyl methacrylate copolymer, etc. may be included, and these may be used alone or in combination of two or more.

In the present invention, the organic desiccant is more preferably a polyacrylamide type. The acrylamide-based, in particular, polyacrylamide-acrylic acid metal salt is not soluble in water due to sufficient mutual binding properties, but can absorb a very large amount of water while maintaining hydrophilicity and can expand accordingly. It is possible to inhibit the dissolution of the resulting corrosion.

The organic desiccant preferably maintains a particle size within a specific range. This is because, when the organic desiccant is gelled according to the moisture absorption of the composition, the dissolution time is delayed and the solubility is deteriorated as agglomeration between particles occurs, which adversely affects the formation of the gel. In particular, the organic desiccant acts as a factor to increase thixotropy and pseudoplasticity in the presence of moisture when mixed with the inorganic desiccant, and the viscosity increases in the absence of an external force to hold moisture. Such thixotropy and pseudoplasticity can be determined by the specific surface area of the thickener.

Specifically, the organic desiccant preferably has a particle size of 150 μm or less, more preferably 100 to 150 μm. When the particle size of the organic desiccant exceeds 150 μm, the gel stability after moisture absorption may be greatly reduced due to a decrease in specific surface area and may adversely affect long-term moisture absorption.

The organic desiccant is preferably included in an amount of 60 to 80% by weight, more preferably 70 to 75% by weight, based on 100% by weight of the total composition. When the organic desiccant is added below the above range, the deliquescent inhibitory effect of the inorganic desiccant may be reduced due to a decrease in moisture absorption and insufficient gel formation. This can go down.

In the present invention, the inorganic desiccant absorbs moisture in the atmosphere based on high deliquescent properties, and in some cases, it also has the effect of improving rust prevention properties.

The inorganic desiccant is not limited to a type as long as it is commonly used as a desiccant or the like in the art, and may mainly include any one or a plurality of metal oxides, metal phosphates, and metal carbonates.

Examples of the metal oxide include any one or a plurality selected from calcium oxide, barium oxide, magnesium oxide, strontium oxide, sodium oxide and potassium oxide, and these may be used alone or in combination of two or more.

More preferably, magnesium oxide may be included as the metal oxide in the present invention. The magnesium oxide forms a needle-shaped hydration product to absorb other inorganic absorbents liquefied initially to maintain a solid shape, and is preferable because it exhibits excellent hygroscopicity even after long-term use.

The metal phosphate basically expresses hygroscopicity, and when combined with other components, it can effectively suppress the expansion caused by moisture absorption, and it has excellent humidity control performance even under high humidity conditions and can maintain moisture absorption performance for a long time. have an advantage

The metal phosphate may include, for example, potassium phosphate and sodium phosphate, and among them, sodium phosphate is preferably used. Specifically, the sodium phosphate may be divided into monosodium phosphate, disodium phosphate, and trisodium phosphate, and in the present invention, all of them may be included, and the present invention relates to this It is not limited.

In the present invention, since the metal carbonate is basically a material derived from sodium hydroxide with strong deliquescent properties, it is lower than the above-described metal oxide or metal phosphate, but also has hygroscopicity and deliquescent properties, and when mixed with the organic desiccant, it is used to develop deliquescent properties. It is possible to express high moisture absorption while minimizing liquefaction.

Examples of the metal carbonate include alkali metal carbonates such as lithium carbonate, sodium carbonate, potassium carbonate, and rubidium carbonate; alkaline earth metal carbonates such as beryllium carbonate, calcium carbonate and strontium carbonate; and the like, and among them, it is preferable to use sodium carbonate because it is possible to minimize corrosiveness due to low deliquescent properties and to ensure high hygroscopicity.

The inorganic moisture absorbent is preferably added in an amount of 10 to 30% by weight, more preferably 17 to 22% by weight, based on 100% by weight of the total composition. When the inorganic desiccant is added below the above range, the hygroscopicity of the entire composition may decrease, and if it is added above the above range, the deliquescent property may excessively increase and a liquefied corrosion product may be released.

In the present invention, the vaporizable rust preventive agent is a material capable of protecting a metal placed in a corrosive environment, and has an effect of preventing the formation of a compound mainly comprising a hydroxide or an oxide on the metal surface.

Among rust inhibitors with these properties, vaporizable rust inhibitors have sublimation at room temperature and as they diffuse into the air, they adsorb to the metal surface to form a fine film. It serves to prevent corrosion by inhibiting the progress of

The vaporizing rust preventive agent as described above is capable of preventing rust even to areas where rust preventive liquid or antirust oil is difficult to penetrate because the rust preventive particles vaporize and diffuse into the air. Therefore, it has the advantage of reducing the cost of the rust prevention process and preventing environmental pollution.

The vaporization rust preventive agent may be divided into ferrous metals and multipurpose ferrous and nonferrous metals according to the material of the rust prevention target. Among them, the rust inhibitor for iron is characterized by containing nitrogen, and examples thereof include amines such as triethylamine, hexamethylamine, hexamethylenetetramine, ethanolamine, and dimethylethanolamine. Dicyclohexylamine nitrite), DIPAN (Diisopropyl amine nitrite), CHC (Cyclohexyamine cyclohexyl carbonate), etc. may be included, and among these, hexamethylenetetramine has excellent compatibility with other ingredients, and It is preferable because it can act as an auxiliary rust preventive agent to prevent corrosion by suppressing deliquescent properties.

In addition, the iron and non-ferrous rust inhibitors are mainly imine benzoate series, and in addition to pyrazole, imidazole, benzimidazole and mercapto benzothiazole series. Examples of these may include benzotriazole, tolytriazole, trimethyltetrahydroxypyrazole, sodium benzoate and ammonium benzoate, among which the use of benzotriazole is strongly non-ferrous. It is preferable because the corrosion inhibitory effect can be expressed.

In the present invention, the vaporizing rust preventive agent preferably includes both the iron rust preventive agent and the iron and non-ferrous rust preventive agent described above, but in this case, the mixing ratio is not limited, but mixing in a weight ratio of 1 to 2: 0.1 to 1 is suitable for both ferrous and non-ferrous rust preventive properties. It is preferable that it can be given.

In addition, it is preferable that the vaporization rust inhibitor comprises 1 to 10% by weight, more preferably 5 to 8% by weight, based on 100% by weight of the total composition. When the vaporizable rust preventive agent is added below the above range, it is difficult for the composition to express rust prevention properties.

The anti-rust and moisture-proof composition according to the present invention may further include various additives as necessary in addition to the above components. Examples of such additives include mineral oils, dispersants, fillers, thickeners, thickening aids, heat of hydration reducing agents, anti-caking agents, catalysts, surface-active additives, emulsifiers, reaction retardants, pigments, dyes, flame retardants, antioxidants, phase change materials, scorch There are scorch inhibitors, plasticizers and antibacterial agents, and these may be added alone or in a mixture of two or more. The amount of addition may also be freely adjusted within a range that does not impair the purpose of the present invention.

In addition, it is preferable that the vaporizing rust preventive agent further comprises one or a plurality of heating particles so that the rust preventive agent has vaporization property even at a low temperature.

When the heating particles are mixed with a rust preventive agent and the like to form a composition, it generates heat under certain conditions to maintain the temperature around the rust preventive agent at a certain level or higher, thereby preventing the vaporization of the rust preventive agent from decreasing due to the temperature drop.

Specifically, the heating particles are made of a material capable of emitting heat of absorption in a moisture absorption situation, and preferably include an acrylate-based polymer whose surface is modified with a hydrophilic group.

In more detail, the acrylate polymer makes the molecule hydrophilic through modification and at the same time, it is a high-exchange, and because of its high hygroscopicity, it is possible to further increase the moisture absorption rate of the rust-preventing and moisture-proof composition. The vaporization property of the rust inhibitor can be maintained by raising the ambient temperature.

The acrylate polymer is a polymer containing at least a certain amount of acrylonitrile, and the acrylonitrile and methyl (meth) acrylate, ethyl (meth) acrylate, butyl (meth) acrylate, dimethylaminoethyl (meth) acrylate, It may be copolymerized with monomers such as diethylaminoethyl (meth)acrylate, methallyl sulfonic acid, and p-styrene sulfonic acid.

The method of making the acrylate polymer hydrophilic includes a method commonly applied in the art, and preferably a method of cross-linking and introducing a hydrazine-based compound.

Examples of the hydrazine-based compound include hydrazine hydrate, hydrazine sulfate, hydrazine hydrochloride, hydrazine bromate, and hydrazine carbonate. In addition, compounds having a plurality of amino groups such as ethylenediamine, guanidine sulfate, guanidine hydrochloride, guanidine phosphate, and melamine are used. for example.

The method of modifying the acrylate polymer is not limited in the present invention, and for example, a method of immersing the acrylate polymer in a fine particle state in the hydrazine compound solution may be used. At this time, the solution has a concentration of 5 to 70% by weight, a temperature of 50 to 150° C., and it is preferable to proceed by immersion for about 1 to 10 hours.

The acrylate polymer is preferably included in an amount of 1 to 5% by weight based on 100% by weight of the total composition. When the acrylate polymer is added below the above range, the vaporization property of the rust inhibitor is not noticeable due to the lack of heat of hydration.

The anti-rust and moisture-proof composition according to the present invention is not limited to the manufacturing method. For example, the rust-preventive and moisture-proof composition may include: a) mixing an organic desiccant, an inorganic desiccant, and a vaporizable rust preventive; b) grinding the mixed mixture as above; c) mixing an additive including mineral oil and the like into the mixture of step b); and d) processing the mixture of step c) into spherical particles.

In this case, the mixing of step a) is preferably performed under the conditions of 10 to 100 rpm using a conventional stirrer, and the step b) is preferably pulverized to a size of 10 to 200 mesh using a pulverizer. .

In addition, in the additive, fumed silica is added as a dispersant in order to improve dispersibility and processability, and it is preferable to include paraffin wax or petroleum oil as mineral oil. In particular, it is preferable to include fumed silica having heat-resistant properties as a dispersant in order to uniformly distribute the vaporizable rust preventive component in the desiccant component.

In step d), it is preferable to process in the form of beads or pellets, and in this case, a general granulator may be used.

The present invention relates to a rust-proof and moisture-proof product comprising the anti-rust and moisture-proof composition prepared as described above, wherein the anti-rust and moisture-proof product does not leak moisture-absorbed deliquescent solution, and is a soft packaging material that does not easily rupture or burst even if punctured by a sharp object It is characterized in that the moisture absorbent composition is accommodated therein.

In more detail, the flexible packaging material is a multi-layered sheet laminated form, wherein the sheet is a film or non-woven fabric having a porosity, and each may include a film or non-woven fabric using a polymer as a raw material, specifically, a polymer material in the breathable non-woven fabric layer of the film layer may have a structure in which at least one layer is laminated.

In the present invention, the breathable non-woven fabric layer is a portion corresponding to the outer layer of the entire flexible packaging material, and has a structure in which a multi-layered non-woven fabric and a film are sequentially stacked so as to have air permeability and secure tensile strength, rupture strength, etc. It may have a structure.

Specifically, the air permeable nonwoven layer preferably secures air permeability and mechanical properties that do not rupture despite external impact or expansion of the internal composition by locating the air permeable film between the nonwoven fabric and the nonwoven fabric on the inner and outer layers.

The material of the non-woven fabric layer is preferably a polymer fiber having excellent mechanical properties, such as polyethylene or polyethylene terephthalate, and the film includes a material having mechanical properties and chemical stability, such as polyethylene or polypropylene, for example. good night.

In the present invention, the breathable non-woven fabric layer does not limit the basis weight or moisture permeability, but the basis weight is 75 to 80 g/m2, and the moisture permeability is 5,500 to 6,500 g/m2·24hr. Even if water is absorbed, water does not leak out of the surface of the nonwoven fabric layer, and excellent tensile strength can be secured.

The film layer is provided to prevent moisture absorbed moisture from leaking through the nonwoven fabric layer, and is preferably made of a chemically stable material that does not damage the material by the moisture absorption composition.

In addition, the film layer has a structure in which two or more layers of films are laminated so that the flexible packaging material does not rupture even when the moisture absorbent composition therein expands, but is preferably provided to be thicker than the nonwoven fabric layer.

Specifically, the film layer has a structure in which two layers of films are laminated, and the material of the film layer includes a polymer material such as polypropylene, high-density polyethylene, high-density polyethylene, low-density polyethylene, low-density polyethylene, and polyethylene terephthalate. Preferably, among them, polyethylene terephthalate and polyethylene are preferably laminated.

Although the thickness of the flexible packaging material is not limited, the thickness ratio of the nonwoven fabric layer and the film layer is preferably 1:3 to 5. The reason that the thickness of the film layer is thicker as described above is that the tensile strength of the film is relatively higher than that of the nonwoven fabric, so it is possible to maintain the mechanical properties of the flexible packaging material even in external or internal impact, and to withstand chemical deterioration caused by the moisture absorption component. Because.

Hereinafter, the present invention will be described in more detail with reference to Examples and Comparative Examples. However, the following Examples and Comparative Examples are only examples for explaining the present invention in more detail, and the present invention is not limited to the following Examples and Comparative Examples.

The physical properties of the specimens prepared in the following Examples and Comparative Examples were measured as follows.

(sample)

The specifications of the samples used in Examples and Comparative Examples are shown in Table 1 below.

[Table 1]

(rust prevention)

First, AISI 1010 steel having a size of 89×51×0.5 mm was prepared as a specimen, and the surface of the specimen was ultrasonically cleaned, immersed in acetone, and dried. After drying, the specimen was put into a thermo-hygrostat. Then, 5 g of each of the samples prepared in the following Examples and Comparative Examples were weighed and added to the specimen, and then the temperature and humidity were adjusted to evaluate the rust prevention properties. At this time, the temperature and humidity conditions are as follows.

Step 1: Maintain for 3 hours at 25℃, RH 95%

Step 2: Raise the temperature from 25°C to 55°C in 1 hour and 30 minutes

Step 3: Maintain for 4 hours and 30 minutes at 55℃, RH 95%

Step 4: Lower the temperature from 55°C to 25°C in 1 hour and 30 minutes

Step 5: Maintain for 1 hour and 30 minutes at 25℃, RH 95%

After sequentially passing steps 1 to 5 as 1 cycle, the specimen was maintained for 14 days (28 cycles), washed with water and methanol, and dried. Then, the surface of the specimen was scanned under the condition of 300 dpi using the V700PHOTO model of EPSON, and the area of rust occurrence was calculated using the Scion Image program. The rust prevention degree was calculated by the method of (rust occurrence area/test piece area) × 100, and the average value of three test pieces was used.

(moisture absorption rate)

Moisture absorption was measured after exposing the specimen to 50±2℃ and 95±5% relative humidity conditions using a thermo-hygrostat for 20 days. did.

(gel stability)

After exposure for 20 days in a thermo-hygrostat at 50° C. and 95% relative humidity, phase separation, gelation, and contamination resistance (contamination or transfer of external packaging materials) of the contents of the specimens were visually evaluated. In this case, if there was no change in the above items, it was indicated by ○, and if there was some change, it was indicated by ×.

(Examples 1 to 9 and Comparative Examples 1 to 2)

Samples were prepared in the composition ratio of Table 2 below. Then, a soft packaging material (PET nonwoven fabric layer-PP breathable film layer-PET film layer, 150㎛ thickness, basis weight 78.1g/m2, moisture permeability 6,012g/m2·24hr) having a length and width of 100 mm, respectively, was prepared in the form of a bag. , each of the specimens was accommodated inside the packaging material and sealed.

In addition, separately from this, when no rust inhibitor was included as a control (Comparative Example 1, MgCl ₂ 65% by weight, CaCl ₂ 10% by weight, MgO 5% by weight, starch 8% by weight) and the conventional rust inhibitor (Comparative Example 2, carboxymethylcellulose) 66% by weight, 20% by weight of benzoic acid powder (SB-P), 5% by weight of dibutylhydroxytoluene (DHT), 5% by weight of ammonium benzoate, 4% by weight of vermiculite) were prepared and the experiment was conducted under the same conditions. , the physical properties of each sample were measured and described in the table below.

[Table 2]

[Table 3]

As shown in Table 3, the moisture-proof and rust-preventive composition prepared according to the present invention exhibits much superior moisture absorption, gel stability, and rust prevention compared to conventional commercial products (Comparative Examples 1 and 2). Specifically, Example 1 in which each component, an organic desiccant and an inorganic desiccant, and two types of rust preventives, was added in an appropriate ratio and Example 9, in which a part of the organic desiccant was substituted with heat-generating particles in Example 1, shows the best physical properties. .

On the other hand, it can be seen that Examples 2 to 8 in which the addition amount of each composition was out of the appropriate amount showed a decrease in moisture absorption, rust preventive property, gel stability, etc. compared to Examples 1 and 9, and as in Comparative Examples 1 and 2, a rust preventive agent or moisture absorbent When not added, either hygroscopicity or rust-preventing properties were expressed, and in both cases, it can be seen that the gel stability is greatly reduced.

In the above, preferred embodiments of the present invention have been described, but the scope of the present invention is not limited to the specific embodiments as described above, and those of ordinary skill in the art are appropriate within the scope described in the claims of the present invention. it will be possible to change

Claims (8)

Any one or a plurality of organic moisture absorbents selected from polyvinyl alcohol, polyacrylamide-based, polyacrylamide copolymer, cross-linked polyethylene oxide, cross-linked carboxymethyl cellulose, ethylene-maleic anhydride copolymer, and styrene-maleic anhydride copolymer;
any one or a plurality of inorganic moisture absorbents selected from metal oxides, metal phosphates and metal carbonates; and
Any one or more selected from triethylamine, hexamethylamine, hexamethylenetetramine, ethanolamine, dimethylethanolamine, benzotriazole, tolytriazole, trimethyltetrahydroxypyrazole, sodium benzoate and ammonium benzoate of vaporizing rust inhibitor;
Anti-rust and moisture-proof composition comprising a.
The method of claim 1,
The rust-preventive and moisture-proof composition comprises 60 to 80% by weight of an organic desiccant, 10 to 30% by weight of an inorganic desiccant, and 1 to 10% by weight of a vaporizable rust preventive composition.
The method of claim 1,
The organic desiccant is a polyacrylamide-sodium acrylate copolymer, characterized in that the rust and moisture-proof composition.
The method of claim 1,
The inorganic desiccant is any one or more selected from sodium hydrogen carbonate, sodium carbonate, potassium oxide, potassium phosphate and sodium phosphate.
The method of claim 1,
The vaporization rust preventive agent is hexamethylenetetramine and benzotriazole 1 to 2: Anti-rust and moisture-proof composition, characterized in that a mixture of 0.1 to 1 weight ratio.
The method of claim 1,
The anti-rust and moisture-proof composition is a filler, a thickening agent, a hydration heat reducing agent, an anti-caking agent, a catalyst, a surface-active additive, an emulsifier, a reaction retarder, a pigment, a dye, a flame retardant, an anti-aging agent, a phase change material, a scorch inhibitor, Anti-rust and moisture-proof composition comprising any one or a plurality of additives selected from plasticizers and antibacterial agents.
An anti-rust and moisture-proof product comprising the anti-rust and moisture-proof composition according to any one of claims 1 to 6.
8. The method of claim 7,
The anti-rust and moisture-proof product is a breathable non-woven fabric layer, characterized in that it is accommodated in a packaging material having a structure in which any one or a plurality of polymer film layers selected from polyolefin, polyester, polyamide and polyacrylic are stacked in at least one layer. and moisture-proof products.