KR102267373B1 - Construction method of anti-slip packaging materials equipped with ice or snow removal functions - Google Patents

Abstract

The present invention includes a PMMA resin, bentonite, calcium carbonate, ice-making and snow-making powder, silica sand, a colorant, and n,n-dimethyl-p-toluidine (DMPT), wherein the ice-making and snow-making powder is composed of chloride (sodium chloride and calcium chloride) and an organic compound component based on polyol in the form of microcapsules, and a surface thereof is composed of hydrophobic properties and chloride.

Description

An anti-slip packaging material composition having an ice-making and snow removal function and a construction method thereof {Construction method of anti-slip packaging materials equipped with ice or snow removal functions}

The present invention relates to an anti-slip packaging material composition having an ice-making and snow-removing function and a construction method thereof, and more particularly, by adding a powder having an ice-making and snow removal function to the packaging material to achieve a temperature of -5°C to -25°C. De-icing snow can prevent the snow falling on the road from freezing under high temperatures, provide a snow-removing function on the road when there is a small amount of snow, and prevent the black ice phenomenon caused by the freezing of moisture that occurs at dawn in winter It relates to a non-slip packaging material composition having a function and a construction method thereof.

In general, the anti-slip composition is applied to pavement surfaces such as roads, sidewalks, and bicycle roads, etc. to contribute to safety by increasing the anti-slip resistance of automobiles, bicycles, and people, and only the anti-slip resin composition is applied to the construction surface to prevent slipping. Or, it is used as an anti-slip packaging material that is constructed by spraying aggregates on the surface of the applied anti-slip resin composition.

Various materials and methods are known for this anti-slip composition.

As an example, Korean Patent Registration No. 770605 discloses a composition for an anti-slip layer for a road surface based on an epoxy resin.

In addition, Korean Patent Registration Nos. 893723 and 1889270 disclose anti-slip compositions based on polyamide resins.

In addition, Korean Patent Registration No. 1400959 discloses a flooring composition containing phytoncide, and Nos. 1451325 and 2068100 disclose a flooring composition containing methyl methacrylate (MMA) as a main component.

Among the prior art, the anti-skid material mainly made of epoxy resin has a problem that the construction surface is easily damaged when the vehicle is running due to its high hardness. Also, the anti-slip material mainly made of polyamide resin has weak waterproofness and is resistant to long-term pressure. There is a problem in that the durability is weak due to the deformation caused by methyl methacrylate (MMA) as a main material, and the hardness is somewhat high, so it is weak to damage or impact, and there is a problem in that a smell (odor) occurs especially during construction.

In addition, the existing anti-skid material seems to be anti-slip with the naked eye, but the actual anti-slip effect is reduced because the aggregate is not exposed on the surface of the anti-slip packaging material. to be.

On the other hand, in recent years, anti-skid compositions create artificial irregularities on the road surface in the section where there is a potential accident risk, and increase the driver's alertness through the friction sound and vibration of the vehicle body generated when the vehicle passes through the road surface irregularities to prevent accidents. Therefore, the development of a new anti-slip resin composition, anti-slip packaging material and construction method is required.

In addition, all current anti-slip construction methods are predominantly the PREMIX method, which pre-impregnates the resin with aggregate. In the guidelines for installation and management of road safety facilities of the Ministry of Land, Infrastructure and Transport, the minimum particle size of anti-skid aggregate is 2.83 MM and maximum 4.76 MM for the anti-skid pavement and various regulations and materials, but the PREMIX method is based on the size and weight of the aggregate. It was almost impossible to use the aggregate. And the aggregate spraying type had many problems such as resin application, difficulty in recovering non-adhesive parts after aggregate spraying, and non-adhesion and drop-off of aggregate after construction.

An anti-slip resin composition has been developed to solve the above problems, and the anti-slip resin composition according to the prior art includes a main part, a curing agent part, and a filler part, and the main part includes polyether polyol, diamine, catalyst, thickener, defoaming agent, Acrylic acid, a pigment, and a desiccant are included, the curing agent includes diisocyanate and a thickener, and the filler includes one or a mixture of two or more selected from calcium carbonate, cement fly ash, fumed silica, and crushed inorganic fibers.

Based on 100 parts by weight of the curing agent part of the prior art anti-slip resin composition, the curing agent part contains 80 to 95 parts by weight of diisocyanate and 5 to 20 parts by weight of a thickener, the polyether polyol of the main part is 50 to 80 parts by weight, and the diamine is 10 parts by weight. to 25 parts by weight, the catalyst is 6 to 10 parts by weight, the thickener is 0.8 to 1.2 parts by weight, the defoamer is 1.5 to 2.5 parts by weight, the moisture absorbent is 8 to 12 parts by weight, and the filler part is 100 to 250 parts by weight.

The background technology of the present invention is disclosed in Republic of Korea Patent Publication No. 10-2209863 (announcement on January 28, 2021, title of invention: anti-slip resin composition and anti-slip packaging material using the same).

The anti-slip packaging material according to the prior art not only inhibits the anti-slip function when snow falls in the winter at minus 5 ℃ to -25 ℃, but also decreases visibility when snow accumulates, and snow removal equipment, such as snow removal equipment, etc. A lot of damage to the non-slip pavement and the road occurs due to the impact of the anti-slip pavement, and there is a problem that the section using the non-slip pavement is mainly used for safety and dangerous areas on the road, so there is a need to improve these problems.

Therefore, there is a need to improve it.

The present invention prevents the snow falling on the road from freezing under a temperature of -5 ℃ to -25 ℃ by adding a powder having an ice-making and snow-removing function to the pavement construction material, and when a small amount of snow falls, snow removal on the road An object of the present invention is to provide an anti-slip packaging material composition and a construction method thereof, which can provide a function and have an ice-making and snow-removing function capable of preventing a black ice phenomenon caused by freezing of moisture generated at dawn in winter.

The present invention includes PMMA resin, bentonite, calcium carbonate, ice-making and snow-making powder, silica sand, a colorant, and n,n-dimethyl-p-toluidine (DMPT), wherein the ice-making and snow-making powder is a chloride ( Sodium chloride and calcium chloride) and polyol-based organic compound components in the form of microcapsules, the surface is characterized by hydrophobic properties and composed of chloride.

In addition, the composition of the present invention, 22 to 32% by weight of PMMA resin, 0.1 to 1.1% by weight of bentonite, 15 to 25% by weight of calcium carbonate, 20 to 30% by weight of ice-making powder, 19 to 29% by weight of silica sand %, and 1 to 5% by weight of a colorant, and 0.1 to 0.7% by weight of DMPT.

In addition, the ice-making powder of the present invention is characterized in that it consists of 50 to 70% by weight of chloride (sodium chloride and calcium chloride) and 30 to 50% by weight of an organic compound based on polyol.

In addition, the ice-making and snow-making powder of the present invention is characterized in that it is made in the form of a fine powder of 0.025-0.1 mm.

In addition, the present invention, (a) proceeding with the planarization work on the construction target surface, removing foreign substances; (b) adhering the retaining tape to the edge of the construction target surface, and applying a primer to the damaged area or area where the structure is located; (c) mixing a packaging material having an ice-making and snow-making powder and a curing agent and applying the mixture to the construction target surface; and (d) flattening the packaging material applied to the construction target surface, and curing the packaging material by spraying non-slip aggregate, wherein the packaging material includes: PMMA resin, bentonite, calcium carbonate, ice-making and snow-making powder; , silica sand, a colorant, and n,n-dimethyl-p-toluidine (DMPT), and the deicing and snow-making powder is a fine organic compound component based on chloride (sodium chloride and calcium chloride) and polyol. It is made in the form of a capsule, and the surface is characterized by being composed of hydrophobic properties and chloride.

The non-slip packaging material composition having an ice-making and snow-removing function according to the present invention and its construction method are prepared by mixing a PMMA resin, which is an anti-slip packaging material, into the packaging material and fine powder having an ice-making and snow removal function to prepare the non-slip packaging material composition. By paving the pavement of the invention, it is possible to provide an ice-making and snow removal effect on a road on which a non-slip pavement is installed, without mobilizing manpower and equipment, without spraying conventional snow removal agents, and without using conventional electric heat (cable). This has the advantage of providing traffic safety in winter.

1 is a photograph showing the deicing and snow removing effect of a road coated with an anti-slip pavement composition having an ice making and snow removing function according to an embodiment of the present invention.
2 is a view showing a method of constructing an anti-slip packaging material composition having an ice-making and snow-removing function according to an embodiment of the present invention.
3 is a test report of the anti-slip packaging material composition having an ice-making and snow-removing function according to an embodiment of the present invention.
4 is a test report of a non-slip packaging material composition having an ice-making and snow-removing function according to an embodiment of the present invention.

Hereinafter, an embodiment of an anti-slip packaging material composition having an ice-making and snow-removing function according to the present invention and a construction method thereof will be described with reference to the accompanying drawings.

In this process, the thickness of the lines or the size of the components shown in the drawings may be exaggerated for clarity and convenience of explanation.

In addition, the terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to intentions or customs of users and operators.

Therefore, definitions of these terms should be made based on the content throughout this specification.

1 is a photograph showing the deicing and snow removing effect of a road coated with an anti-slip pavement composition having an ice making and snow removing function according to an embodiment of the present invention, and FIG. 2 is an ice making and snow removing function according to an embodiment of the present invention. It is a view showing a method for constructing an anti-slip packaging material composition having, FIG. 3 is a test result of an anti-slip packaging material composition having an ice-making and snow-removing function according to an embodiment of the present invention, and FIG. 4 is an embodiment of the present invention It is a test report of a non-slip packaging material composition having an ice-making and snow-removing function according to

1 to 4, the anti-skid packaging material composition having an ice-making and snow-making function according to an embodiment of the present invention comprises 22 to 32 wt% of PMMA resin, 0.1 to 1.1 wt% of bentonite, and 15 to calcium carbonate 25% by weight, 20-30% by weight of ice-making and snow-making powder, 19-29% by weight of silica sand, 1-5% by weight of a colorant, and 0.1 to 0.7% by weight of DMPT.

Preferably, it comprises 27% by weight of PMMA resin, 0.6% by weight of bentonite, 20% by weight of calcium carbonate, 25% by weight of ice-removing powder, 24% by weight of silica sand, 3% by weight of colorant, and 0.4% by weight of DMPT.

Here, the PMMA resin of this embodiment is a PMMA polymer, an n-butyl acrylate (BA) monomer, a methyl methacrylate monomer, a 2-hydroxy ethyl methacrylate (2-HEMA) monomer, a methacrylic acid (MAA) monomer, and a tripropyleneglycol Contains diacrylate (TPGDA) monomer.

PMMA resin refers to a resin whose main component is methyl methacrylate monomer, and as a material widely used in human daily life, it is used for contact lenses, artificial joints, bones, etc., and is a flooring and repair material manufactured using PMMA resin. is also widely used.

PMMA resin is composed of regular binders, so there is little environmental pollution caused by unreacted substances, and no toxic gas is generated during work and fire, so it is eco-friendly and safe for the human body.

In addition, PMMA resin can work up to -30°C when used as a flooring material due to its fast drying performance, and it is suitable for road repair work as it can be passed within 1 hour after the finishing process, and the coating film is hard and durable, so it is durable. It has the advantage of long life.

In this embodiment, the PMMA polymer as described above is mixed with 2-hydroxy ethyl methacrylate (2-HEMA), which is a monofunctional monomer, methacrylic acid (MAA), and tripropyleneglycol diacrylate (TPGDA), which is a difunctional monomer. Its elasticity and tensile strength are improved.

Accordingly, the packaging material of the present embodiment can provide a packaging material that can be used in special parts such as high-speed rails subjected to high vibration or large force by improving tensile strength, and it is possible to prevent cracks from occurring in the packaging material.

The PMMA resin composition of this example is mixed with a curing accelerator consisting of n,n-dimethyl-p-toluidine (DMPT), 30-50 wt% of PMMA polymer, and 20-40 wt% of n-butyl acrylate (BA) monomer With, 10-30% by weight of methyl methacrylate monomer, 5-10% by weight of 2-hydroxy ethyl methacrylate (2-HEMA) monomer, 2-5% by weight of methacrylic acid (MAA) monomer, and tripropyleneglycol diacrylate (TPGDA) monomer 2 -5% by weight.

In addition, the PMMA resin composition of this embodiment contains 0.1 to 1.0% by weight of n,n-dimethyl-p-toluidine (DMPT), and dibenzoyl in a composition in which n,ndimethyl-p-toluidine (DMPT) is mixed. Peroxide (BPO) is made by mixing 1-2% by weight.

Looking at the manufacturing method of the high elasticity and high tensile strength PMMA resin composition according to an embodiment of the present invention configured as described above is as follows.

The method for producing a high elastic and high tensile strength PMMA resin composition according to an embodiment of the present invention comprises a PMMA polymer, an n-butylacrylate (BA) monomer, a methyl methacrylate monomer, and a 2-hydroxy ethyl methacrylate (2-HEMA) monomer. , methacrylic acid (MAA) monomer and tripropyleneglycol diacrylate (TPGDA) monomer are mixed and heated to 60~70℃, and after cooling the composition to 40~50℃, n,n-dimethyl-p-toluidine (DMPT) After cooling the composition in which n,n-dimethyl-p-toluidine (DMPT) is mixed to room temperature, mixing and curing dibenzoyl peroxide (BPO).

The heating step of this embodiment, PMMA polymer 30-50% by weight, n-butyl acrylate (BA) monomer 20-40% by weight, methyl methacrylate monomer 10-30% by weight, 2-hydroxy ethyl methacrylate ( 2-HEMA) 5 to 10% by weight of the monomer, 2 to 5% by weight of the methacrylic acid (MAA) monomer, and 2 to 5% by weight of the tripropyleneglycol diacrylate (TPGDA) monomer.

In addition, the curing accelerator mixing step of this embodiment is made by mixing with a curing accelerator comprising 0.1 to 1.0 wt% of n,n-dimethyl-p-toluidine (DMPT), and the curing agent mixing step is, dibenzoyl peroxide (BPO) 1-2% by weight is mixed.

<PMMA polymer synthesis>

With respect to 100 parts by weight of a monomer mixed with 40% by weight of methyl methacrylate acid (MAA) monomer, 59% by weight of n-butyl methacrylate (BMA) monomer, and 1% by weight of methacrylic acid (MAA) monomer, a reaction initiator AIBN (azobisisobutyronitrile) 0.2 parts by weight, 200 parts by weight of ion-exchanged water, 1 part by weight of a 5% aqueous polyvinyl alcohol solution (POVAL PVA117 by Kuraray Corporation) as a dispersant, 0.01 parts by weight of sodium hydrogen phosphate as a protective colloid, and n-dodecyl mercaptan (n-dodecyl mercaptan) (n -dodecylmercaptan) was mixed with 0.4 parts by weight, subjected to suspension polymerization at a reaction temperature of 85°C for 2 hours, and the reaction temperature was increased to 120°C to remove residual unreacted monomers, followed by further reaction for 20 minutes.

The PMMA polymer polymerized by the above operation is accommodated in a dehydrator, washed, and dried in a fluidized bed dryer for 20 hours to prepare a PMMA polymer having a weight average molecular weight of 70000, a glass transition temperature of 50° C., and an acid value of 6.0 mgKOH/g.

Example 1 and Comparative Examples 1 to 6 of the high elasticity and high tensile strength PMMA resin composition according to this example are described in Table 1, and Example 1 is a monofunctional monomer 2-hyroxy ethyl in the first step. 7% by weight of methacrylate (2-HEMA), 3% by weight of methacrylate (MMA), and 3% by weight of tripropyleneglycol diacrylate (TPGDA), which is a bifunctional monomer, were used, and Comparative Examples 1 to 3 are functional monomers. Only one is used, and Comparative Examples 4 to 6 use two functional monomers.

As described above, the tensile strength and elongation tests of Example 1 and Comparative Examples 1 to 6 were performed, and the tensile strength and elongation test was performed on 5 specimens according to "SPS-KTS.1102-1890:2017". ℃, the average value measured at 7 days of age is shown in Table 2.

As shown in Table 2, in Example 1 of the present invention, 7 wt% of 2-hydroxy ethyl methacrylate (2-HEMA) as a monofunctional monomer, 3 wt% of methacrylic acid (MAA), and tripropyleneglycol as a bifunctional monomer It was confirmed that 3% by weight of diacrylate (TPGEA) was used, and the result was excellent in tensile strength and elongation.

Comparative Examples 1 to 3, using only one functional monomer, had poor tensile strength, and Comparative Examples 4 to 6, when two functional monomers were used, the tensile strength slightly increased, but the elongation was insufficient. can be known

Accordingly, it is possible to provide the PMMA resin used in the non-slip packaging material composition having the ice-making and snow-removing function of this embodiment.

The ice-making and snow-making powder of this embodiment consists of 50 to 70% by weight of chloride (sodium chloride and calcium chloride) and 30 to 50% by weight of an organic compound based on polyol, and is made in the form of a fine powder of 0.025 to 0.1 mm. .

In addition, the ice-making and snow-making powder of this embodiment is preferably composed of 60% by weight of chloride (sodium chloride and calcium chloride) and 40% by weight of an organic compound based on polyol, as a powder in the form of microcapsules. Silver is composed of hydrophobic properties and chloride, exists in the form of fine powder of 0.075 mm, and the moisture content is maintained below 1% by weight, has a constant color and is free from foreign substances and forms a constant powder form without agglomeration.

The physical properties of the ice-making and snow-making powder of this embodiment are as shown in Table 3.

The anti-skid packaging material comprising the ice-making and snow-making powder of this embodiment is made by mixing the ice-making and snow-making powder composed in the form of microcapsules of 0.075 mm inside the anti-slip packaging material using a high elasticity, high tensile strength PMMA resin, and a certain external action It is a phenomenon in which the deicing and snowing powder is released to the outside of the pavement of the sliding paper due to the hydrophobic properties and inorganic salt of the deicing and snowing powder. It is a safe material that improves absorption, gives the effect of deicing and snow removal, and preventing the melted water from damaging the surroundings, providing the effect of deicing and snow removal.

Here, ice making means making ice (除氷) unlike ice making (製氷), and it means preventing moisture or snow remaining on the surface of the packaging material from freezing.

The anti-skid composition having an ice-making and snow-making function using the high elasticity and high tensile strength PMMA resin of this embodiment is a chemical reaction with the snow and ice on the road surface as the ice-making and snow-making powder is gradually released to the road surface due to the micro-passage and osmotic pressure phenomenon by the external environment. This prevents ice from adhering to the road surface and exhibits the effect of freezing and snow removal.

Although the temperature is below zero, when the temperature (0℃ ~ -10℃) is relatively high and there is little snow, the snow removal action proceeds immediately and the melting effect appears, and the relatively low temperature (??10℃ ~ - 20℃), if there is a lot of snow exceeding 5cm of snowfall, it will not be removed immediately and will accumulate. However, due to the hydrophobicity and chloride properties of the deicing and snow powder, the snow does not freeze, does not freeze on the road surface, and slowly melts. of this effect will appear.

As described above, the capsule-type ice-making and snow-making powder finely formed to a particle size of 0.075 mm is continuously released to the outside of the packaging material for about 6 to 8 years after the composition of the non-slip packaging material of this embodiment is constructed, and the life of the non-slip packaging material It is possible to provide an ice-making and snow-making function at the same time as this is extended.

A comparison of the physical properties of the non-slip packaging material of this embodiment and the conventional ice-making and snow-making methods is shown in Table 4.

An anti-slip packaging material having an ice-making and snow-removing function according to an embodiment of the present invention configured as described above and a construction method thereof will be described as follows.

The method for constructing an anti-skid packaging material composition having an ice-making and snow-removing function according to an embodiment of the present invention comprises the steps of flattening the construction target surface, removing foreign substances, and adhering a retaining tape to the rim of the construction target surface, The steps of applying a primer to the damaged area or the part where the structure is located, mixing the packaging material including the deicing and snow removing powder and the curing agent and applying the mixture to the construction target surface, flattening the packaging material applied to the construction target surface, and applying the coating material to the packaging material It includes the step of hardening by spraying the non-slip aggregate.

First, the packaging material composition containing the ice-making and snow-making powder made as described above is prepared and transported to the construction site, and after flattening the construction target surface and removing foreign substances, attaching the retaining tape to the rim of the construction target surface for construction Prevent the inflow of the packaging material to other parts adjacent to the target surface, mix the curing agent and the packaging material, and install it on the construction target surface.

Thereafter, the pavement is flattened so that the road surface is flattened, and an anti-slip composition such as a non-slip aggregate is additionally installed.

Thereafter, the packaging material is flattened and cured using a roller that evenly finishes the surface of the construction target surface, and the retaining tape adhered to the rim of the construction target surface is removed to complete the packaging material construction.

In this way, powder having ice and snow removal functions is added to the pavement material to prevent snow falling on the road from freezing at a temperature of -5°C to -25°C, and when a small amount of snow falls, the snow removal function on the road It is possible to provide an anti-slip packaging material composition and a construction method thereof having an ice-making and snow-removing function capable of preventing the black ice phenomenon caused by the freezing of moisture generated at dawn in winter.

Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary, and various modifications and equivalent other embodiments are possible therefrom by those of ordinary skill in the art. will understand

In addition, although the non-slip packaging material having an ice-making and snow-removing function and its construction method have been described as an example, this is only an example, and the packaging material of the present invention is also applied to other products other than the non-slip packaging material having an ice-making and snow removal function and its construction method. and its construction method may be used.

Therefore, the true technical protection scope of the present invention should be defined by the following claims.

Claims (5)

PMMA resin, bentonite, calcium carbonate, ice-making powder, silica sand, colorant, and n,n-dimethyl-p-toluidine (DMPT),
The ice-making and snow-making powder is made in the form of microcapsules with chloride (sodium chloride and calcium chloride) and an organic compound component based on polyol, and the surface is made of hydrophobic properties and chloride. An anti-slip packaging composition having a snow removal function.
According to claim 1,
The composition comprises 22 to 32% by weight of PMMA resin, 0.1 to 1.1% by weight of bentonite, 15 to 25% by weight of calcium carbonate, 20 to 30% by weight of ice-making powder, 19 to 29% by weight of silica sand, and colorant 1 Anti-slip packaging material composition having an ice-making and snow removal function, characterized in that it comprises ~5% by weight and DMPT 0.1 ~ 0.7% by weight.
According to claim 1,
The ice-making and snow-making powder is an anti-skid packaging material composition having an ice-making and snow-making function, characterized in that it consists of 50 to 70 wt% of chloride (sodium chloride and calcium chloride) and 30 to 50 wt% of an organic compound based on polyol .
According to any one of claims 1 to 3,
The anti-slip packaging material composition having an ice-making and snow-making function, characterized in that the ice-making and snow-making powder is in the form of a fine powder of 0.025-0.1 mm.
(a) performing a planarization operation on the construction target surface, and removing foreign substances;
(b) adhering the retaining tape to the rim of the construction target surface, and applying a primer to the area where the damaged area or structure is located;
(c) mixing a packaging material having an ice-making and snow-making powder and a curing agent and applying the mixture to the construction target surface; and
(d) flattening the packaging material applied to the construction target surface, and spraying non-slip aggregate on the packaging material to harden,
The packaging material includes PMMA resin, bentonite, calcium carbonate, ice-making powder, silica sand, a colorant, and n,n-dimethyl-p-toluidine (DMPT),
The ice-making and snow-making powder is made in the form of microcapsules with chloride (sodium chloride and calcium chloride) and an organic compound component based on polyol, and the surface is made of hydrophobic properties and chloride. A method of constructing an anti-slip packaging material composition having a snow removal function.

Images