Method of applying an elastic packaging material including an epu water permeable adhesive

Abstract

The present invention relates to a construction method of an elastic pavement material including an EPU (Elastic Polyurethane) water-permeable adhesive, which is an elastic pavement material constructed on a ground of a pedestrian street, a bicycle lane, a school playground, a pedestrian street, a park, a children's playground, etc., has excellent shock-absorbing performance and slip resistance, can improve the convenience of a user, prevent injury, does not separate the interface of a base concrete and the elastic pavement material, prevents rainwater or moisture generated on a base surface, thereby effectively draining and draining water, and makes the water permeability and the water permeability of the base fall from the flow interface of the base, thereby smoothly discharging air from the base. A construction method of an elastic pavement material excellent in durability in forming and maintaining strength.

Description

Technical Field

[0001] This invention relates to a method for constructing resilient pavement materials, including EPU (elastic polyurethane) permeable adhesive. This resilient pavement material is applied to pedestrian streets, bike paths, school sports fields, parks, children's playgrounds, and other surfaces. It offers excellent shock absorption and anti-slip properties, improving user convenience and preventing injuries. The interface between the base concrete and the resilient pavement material remains intact, preventing rainwater or moisture from the base surface from effectively draining and facilitating drainage. This allows the permeability and fluidity of the base to detach from the flow interface, enabling smooth airflow from the base. This invention also relates to a method for constructing a durable resilient pavement material that forms and maintains strength. Background Technology

[0002] Generally speaking, walkways or bicycle paths, school sports fields, pedestrian streets, parks, children's playgrounds, etc., are built to improve the convenience of residents or students, enhance their health, and provide children with play space. During construction, most of them are formed by laying cement sidewalk blocks on the ground or by paving concrete and asphalt concrete on the ground.

[0003] While traditional walkways, bike paths, school sports fields, pedestrian streets, parks, and children's playgrounds constructed with concrete and asphalt concrete have advantages such as good durability and ease of construction, they also pose a problem where users can suffer serious injuries from accidental falls or even minor collisions.

[0004] To address the aforementioned issues and prevent harm to the body, many flexible packaging materials have recently been used.

[0005] This elastic packaging material modulates the impact when walking or landing, along with its elastic deformation, giving the foot a cushioning effect upon landing. This reduces the burden transmitted to the body, making it safer for activities and play.

[0006] These flexible packaging materials can be categorized into types such as flexible rubber, flexible epoxy, and flexible PVC, depending on the material of the flooring.

[0007] Among them, flexible packaging materials such as polyurethane chips, EPDM chips, or recycled rubber chips are commonly used recently.

[0008] Similarly, elastic packaging materials using rubber chips are installed by laying the rubber chips in place, while other methods involve molding products into mats of specified dimensions and then connecting them together.

[0009] In particular, to ensure economic efficiency, waste tires are shredded into rubber chips of a certain size and mixed with silica sand and adhesive in a certain proportion to form packaging materials with a certain length and width. Then, adhesive is sprayed onto the surface of the asphalt or concrete packaging, and the formed packaging materials are wrapped on the adhesive to improve user safety.

[0010] However, the installation of the above-mentioned elastic paving materials needs to be carried out on an asphalt or concrete base. After construction, the paving materials are severely damaged, resulting in unsightly problems such as waste rubber sheets falling off and polluting the surrounding area.

[0011] In addition, traditional elastic packaging materials are made of impermeable materials, so rainwater can remain on them when it rains, causing them to deteriorate. If moisture or gas is generated on the concrete base of the elastic packaging material, it is difficult for it to escape upwards, causing the elastic packaging material to lift or fall off. Summary of the Invention

[0012] The problem that the invention aims to solve

[0013] This invention was developed to solve the problems of the aforementioned traditional technologies. The purpose of this invention is to provide an elastic paving material for use on pedestrian streets, bicycle paths, school sports fields, parks, children's playgrounds, and other ground surfaces. This material possesses excellent shock absorption and anti-slip properties, improving user convenience and preventing injuries. It does not separate from the interface between the base concrete and the elastic paving material. By preventing rainwater or moisture from the base surface and ensuring permeability, it allows for smooth flow and drainage of the base material, thus forming a solid air interface and maintaining adhesion and permeability to the base, thereby improving the flow and permeability of the base. The invention also aims to provide a construction method for a durable elastic paving material.

[0014] Methods for solving problems

[0015] To accomplish the above-mentioned tasks, the present invention is as follows:

[0016] The first stage involves spraying the fuse onto the foundation concrete.

[0017] The second stage involves laying SBR (Styrene Butadiene Rubber) tire rubber chips on the lower fuse line of the above-mentioned spraying.

[0018] The third stage involves spraying EPU (elastic polyurethane) permeable adhesive onto the aforementioned laid SBR (Styrene Butadiene Rubber) tire rubber chips; and

[0019] The fourth stage involves laying EPDM (Ethylene-Propylene Diene Monomer) colored rubber chips onto the aforementioned coated EPU (Elastic Polyurethane) permeable adhesive; providing a method for constructing elastic packaging materials, including EPU (Elastic Polyurethane) permeable adhesive.

[0020] In one example of the present invention,

[0021] The above-mentioned EPU (elastic polyurethane) water-permeable adhesive

[0022] The first component of the resin consists of 30-50 parts by weight of polyol, 5-30 parts by weight of isocyanate compound, 1-30 parts by weight of amine compound, 0.1-5.0 parts by weight of chain extender, 4-10 parts by weight of solvent and 1-30 parts by weight of additive components;

[0023] The second component of the resin is composed of 20-35 parts by weight of olefin resin, 30-40 parts by weight of thermoplastic elastic resin, 10-20 parts by weight of formulated oil, 10-30 parts by weight of mineral filler and 1-10 parts by weight of antioxidant; characterized by its composition.

[0024] In another embodiment of the present invention, the aforementioned thermoplastic elastic resin is characterized by being selected from one or more of SBS block copolymers (styrene-butadiene-styrene block corporation), SEBS block copolymers (styrene-ethylene-butadiene-styrene block corporation), TPV (Thermoplastic Vulcanizate), or olefin block copolymers (olefin).

[0025] Furthermore, in one embodiment of the invention, the aforementioned mineral filler is characterized by any one or a mixture of two or more of calcium carbonate, tartar, silica gel, macca, clay, fluorite, and bentosite.

[0026] In another embodiment of the present invention, the additive is characterized by selecting one or more of a plasticizer, an antioxidant, and a curing catalyst.

[0027] In another embodiment of the invention, after laying the EPDM (Ethylene-Propylene Diene Monomer) carrageenan chip, a fifth step is performed by spraying the EPU (Elastic Polyurethane) water-permeable adhesive onto its surface; this step is characterized by including more components.

[0028] Invention Effects

[0029] According to the present invention, an elastic packaging material, including an EPU (elastic polyurethane tubing) permeable adhesive, is formed on a base concrete. It has the property of elastic deformation while regulating impact, so that the foot has the property of cushioning impact when landing, thereby reducing the burden of impact transmitted to the body and realizing safe activities and games.

[0030] Furthermore, the elastic packaging materials specified in this invention, including EPU (elastic polyurethane) water-permeable adhesive, result in less damage to the packaging materials after construction and less delamination of the rubber chip, which can reduce pollution of the surrounding environment.

[0031] Furthermore, the elastic packaging material specified in this invention, including the elastic packaging material containing EPU (elastic polyurethane) water-permeable adhesive, is composed of water permeability. When it rains, rainwater will not remain on the elastic packaging material, which can prevent the elastic packaging material from deteriorating. If moisture or gas is generated on the base concrete surface of the elastic packaging material, it can be easily discharged upwards, which can solve the problem of the elastic packaging material floating out or falling off. Attached Figure Description

[0032] Figure 1 A method for constructing a resilient packaging material, including an EPU permeable adhesive, according to a first embodiment of the present invention is outlined.

[0033] Figure 2 The second embodiment of the present invention provides drawings that schematically illustrate a method for constructing elastic packaging materials, including EPU permeable adhesive.

[0034] Figure 3 The third embodiment of the present invention provides drawings that schematically illustrate a method for constructing elastic packaging materials, including EPU permeable adhesive.

[0035] Figure 4 This is a drawing that outlines a construction method for an elastic packaging material, including an EPU permeable adhesive, according to a fourth embodiment of the present invention. Detailed Implementation

[0036] The present invention will now be described in detail through ideal embodiments.

[0037] first, Figure 1 A method for constructing a resilient packaging material, including an EPU permeable adhesive, according to a first embodiment of the present invention is outlined.

[0038] As shown in the figure, the construction method of the elastic packaging material according to the present invention includes:

[0039] The first stage involves spraying the lower conductor (20) onto the foundation concrete (10);

[0040] The second stage involves laying SBR (Styrene Butadiene Rubber) tire rubber chips (30) on the lower fuse line of the above-mentioned spraying;

[0041] The third stage involves spraying EPU (elastic polyurethane) permeable adhesive (40) onto the aforementioned laid SBR (Styrene Butadiene Rubber) tire rubber chips; and

[0042] The fourth stage involves laying EPDM (Ethylene-Propylene Diene Monomer) colored rubber chips (50) on the above-applied EPU (Elastic Polyurethane) permeable adhesive (40).

[0043] In this invention, the aforementioned foundation concrete (10) can be concrete, or it can be other asphalt or other base surfaces of different hardness.

[0044] In this invention, a lower conductor (20) can be laid on the aforementioned foundation concrete (10), but the lower conductor can be omitted in some cases.

[0045] In this invention, SBR (Styrene Butadiene Rubber) tire rubber chips (30) are laid on top of the lower conductor base (20).

[0046] In this invention, the SBR (Styrene Butadiene Rubber) tire rubber chip (30) is coated with EPU (Elastic Polyurethane) permeable adhesive (40). The function of the EPU (Elastic Polyurethane) permeable adhesive (40) is to enable it to exert a strong adhesion to the concrete layer. Due to its permeability, rainwater from the upper part is not retained but discharged downwards, and internal moisture is released to the outside.

[0047] In this invention, an EPDM (Ethylene-Propylene Diene Monomer) carrageenan chip (50) is laid on the above-mentioned EPU (Elastic Polyurethane) water-permeable adhesive (40).

[0048] Figure 2 The second embodiment of the present invention provides drawings that schematically illustrate a method for constructing elastic packaging materials, including EPU permeable adhesive.

[0049] As shown in the figure, after constructing the elastic packaging material including EPU permeable adhesive according to the first embodiment, the above-mentioned EPDM (Ethylene-Propylene Diene Monomer) colored rubber chip (50) is laid, and the above-mentioned EPU permeable adhesive (40) is sprayed on top of it.

[0050] In this way, after the upper EPDM carbamate chip is laid, an EPU permeable adhesive (40) according to the invention is also included on top, which can further enhance durability.

[0051] Figure 3 The third embodiment of the present invention provides drawings that schematically illustrate a method for constructing elastic packaging materials, including EPU permeable adhesive.

[0052] As shown in the figure, in order to enhance the durability of the existing elastic packaging material rubber core, a coating application can be performed on the existing elastic packaging material rubber core.

[0053] The bottom layer is the existing elastic packaging material rubber chip (70), on which the EPU water-permeable adhesive (40) specified in this invention is sprayed, and then the SBR (Stylene Butadiene Rubber) tire rubber chip (30) is sprayed, and then the EPDM (Ethylene-Propylene Diene Monomer) colored rubber chip (50) can be sprayed on top.

[0054] Figure 4 This is a drawing that outlines a construction method for an elastic packaging material, including an EPU permeable adhesive, according to a fourth embodiment of the present invention.

[0055] As shown in the figure, in order to enhance the durability of existing elastic packaging material rubber chips, EPDM (Ethylene-Propylene Diene Monomer) colored rubber chip (50) and EPU water-permeable adhesive (40) specified in this invention are sprayed onto the existing elastic packaging material rubber chip (70) once every 2 to 3 years. This can improve the durability of the elastic packaging material and enable continuous maintenance.

[0056] The following details the EPU (elastic polyurethane tubing) permeable adhesive (40) used in this invention.

[0057] In this invention, the above-mentioned EPU (elastic polyurethane) permeable adhesive comprises a first resin component consisting of 30-50 parts by weight of polyol, 5-30 parts by weight of isocyanate compound, 1-30 parts by weight of amine compound, 0.1-5.0 parts by weight of chain extender, 4-10 parts by weight of solvent and 1-30 parts by weight of additive component; and a second resin component consisting of 20-35 parts by weight of olefin resin, 30-40 parts by weight of thermoplastic elastic resin, 10-20 parts by weight of formulation oil, 10-30 parts by weight of mineral filler and 1-10 parts by weight of antioxidant; and is composed of [the following components].

[0058] In this invention, among the substances constituting the first component of the resin, the polyol can be at least a compound having two or more hydroxyl groups, such as polyether polyol, polyester polyol, etc. Specifically, the polyether polyol can be polyethylene glycol, polypropylene glycol, polytetramethyl methacrylate, polymethyl methacrylate, etc. Furthermore, the polyether polyol can be urea-modified polyol, polyurethane-modified polyol, amine-modified polyol, etc.

[0059] The aforementioned polyol components can improve the physical properties and durability of polyurethane resin, thereby enhancing its hardness, wear resistance, tensile strength, elasticity, and shock absorption.

[0060] The isocyanate compound of the present invention is an isocyanate prepolymer, which may include isocyanate-terminated prepolymers, specifically isocyanate-terminated prepolymers prepared from aliphatic diisocyanates, aromatic diisocyanates, polyetheramines, etc.

[0061] Using aromatic diisocyanates (such as methyl diphenyl diisocyanate) instead of aliphatic diisocyanates as the aforementioned isocyanate compounds can reduce yellowing and obtain polyurethanes with excellent tensile strength and adhesion.

[0062] Therefore, it is best to properly control the proportion of each component. If too much aromatic diisocyanate is added, the effect of slowing down yellowing may be negligible. If too much aliphatic diisocyanate is added, yellowing will be reduced, but tensile strength and adhesion will be reduced.

[0063] In this invention, the aforementioned aliphatic diisocyanate can be any one or more selected from the group consisting of tetramethyl diisocyanate, pentamethyl diisocyanate, and hexamethyl diisocyanate, and the aforementioned aromatic diisocyanate can be one or more selected from the group consisting of dimethyl diphenyl diisocyanate (MDI) and trimethyl diisocyanate (TDI). By using them as isocyanate compounds, the strength and durability of polyurethane materials can be improved.

[0064] It is worth mentioning that the aforementioned MDI component has high tolerance to high temperature and high humidity. While improving the durability and mechanical properties of polyurethane materials, it also enhances the physical properties of elastic packaging materials, such as elasticity and abrasion resistance.

[0065] Furthermore, the aforementioned amine compounds react with isocyanate compounds to form urea compounds, and polyimides and polyimide-containing mixtures can be used.

[0066] The aforementioned chain-extending agents can be diamine compounds such as diethyltoluene diamine.

[0067] Toluene can be used as a solvent for the first component of the above-mentioned resin. These solvents serve to adjust the viscosity of the polyurethane adhesive or facilitate the mixing of components, and also to regulate the curing speed.

[0068] The first component of the resin described in this invention is the additive component, which may include plasticizers, antioxidants, curing catalysts, etc.

[0069] The aforementioned plasticizer improves the softness and elasticity of polyurethane adhesives. As an environmentally friendly component, it can be a substance commonly used in the field of this invention, and the specific substance is not particularly limited.

[0070] The function of the aforementioned antioxidant is to improve the durability of polyurethane adhesives, prevent oxidation caused by ultraviolet light, oxygen in the air, external heat, etc., extend the life of elastic packaging materials, and maintain performance. Substances commonly used in the field of this invention can be used, and specific substances are not particularly limited.

[0071] The aforementioned curing catalyst plays a role in regulating the curing rate during the polyurethane reaction, providing an appropriate curing time, and ensuring uniform curing of the packaging.

[0072] This can optimize the physical properties of polyurethane adhesives, such as strength or elasticity. Substances commonly used in the art to which this invention pertains can be used, and specific substances are not particularly limited.

[0073] Next, the second component of the resin in this invention includes 20 to 35 parts by weight of olefin resin, 30 to 40 parts by weight of thermoplastic elastic resin, 10 to 20 parts by weight of formulation oil, 10 to 30 parts by weight of mineral filler and 1 to 10 parts by weight of antioxidant.

[0074] The aforementioned olefin resins are mainly components that impart durability and morphological stability to elastic packaging materials. If they are commonly used or announced, their types are not subject to much restriction. However, considering commercial water resistance and moldability, it is best to select one or more polystyrene or polypropylene resins.

[0075] Specifically, in this invention, the olefin resin can be polypropylene alone or a mixture of polypropylene and polyethylene.

[0076] The aforementioned polyethylene may be a mixture of LLDPE (Linear Low Density Polyethylene), HDPE (High Density Polyethylene), and HDPE-G-MAH (high density graft maleicanhydride), but is not limited thereto.

[0077] In this invention, the aforementioned thermoplastic elastomer (TPE) is a physically cross-linked elastomer, also known as thermoplastic rubber. Thermoplastic elastomers are mainly block copolymers composed of soft segments of a rubber component and hard segments of a resin component. At room temperature, they behave similarly to rubber, but upon heating, the resin component softens, exhibiting plasticity. Considering factors such as commercial accessibility, moldability, adhesion properties, and impact absorption properties, the aforementioned thermoplastic elastomer can be composed of one or more selected from SBS block copolymers (styrene-butadiene-styrene block corporation), SEBS block copolymers (styrene-ethylene-butadiene-styrene block corporation), TPV (Thermoplastic Vulcanizate), or olefin block copolymers.

[0078] In this invention, the formulated oil has good compatibility and processability with natural or synthetic rubber, good dispersibility and lubricant affinity as a formulation, and has a rapid softening effect, resulting in uniform rubber molding and quality during molding.

[0079] In addition, it increases the rubber's moisture resistance and aging resistance, imparts adhesion, and improves its physical properties such as tensile strength, elasticity, elongation, and abrasion resistance. Types include paraffin-based, naphthalene-based, and aromatic-based compounds.

[0080] In this invention, the mineral filler is preferably any one or a mixture of two or more of calcium carbonate, decarburized silica, silica gel, macca, clay, Flyash, and Bento stone, and is a filler material added to increase the amount of elastic packaging material, reinforce it, improve its molding processability, etc.

[0081] In this invention, the antioxidants mentioned above can be phenyl-β-naphthylamine or N,N'-di-β-phenylenediamine, so that they can be used stably for a long time at high temperatures.

[0082] In this invention, the silicone in the second component of the resin may be further included in the range of 0.1 to 5.0 by weight.

[0083] At this point, the surface of the aforementioned silica aerogel can be treated with reducing water to allow hydrogen ions to be adsorbed on the surface and in the pores of the silica aerogel.

[0084] At this point, the pretreatment of the silicone can be performed using the following method. That is,

[0085] (a) By supplying an electrolyte mixture to the electrolysis module, the potential is recognized in the form of a constant current to obtain the first stage of reduced water;

[0086] (b) Based on the reduced water obtained above, add silica gel for the second stage of wetting and dispersion;

[0087] (c) The liquid obtained above is filtered to remove impurities generated during solvent replacement and electrolysis, diluted, and then subjected to a third stage of ultrasonic treatment; and

[0088] (d) The fourth stage of drying the liquid obtained in (c) above; carried out by the included process.

[0089] The electrolyte mixture is supplied to the cathode of the electrolysis module at a rate of 100 to 800 ml / min, and the potential is permitted in the form of a current of 3 to 30 V (2 to 10 A) to prepare reduced water.

[0090] Reduced water produced by this process is best used with an ORP (oxidation-reduction potential) below -500mV.

[0091] Next, the reduced water obtained above is used for surface treatment of the silica gel.

[0092] Specifically, the reduced water prepared above is stirred with a homogenizer (3000-10000 RPM) or an agitator, and then silica gel is slowly added to the reduced water at a weight ratio of 100 to 1-20 to wet and disperse it once.

[0093] Next, the matured liquid is filtered to remove impurities generated during solvent replacement and electrolysis before being reused.

[0094] Next, the liquid obtained above is diluted to 10-30% by weight and subjected to ultrasonic treatment at 750 watts (20 kHz) for about 1 liter / 10 min.

[0095] The liquid obtained in the above process is then vacuum filtered and dried to obtain surface-pretreated silica gel. At this point, the moisture content of the silica gel is preferably 0–30% by weight.

[0096] The silica aerogel obtained through this process adsorbs hydrogen ions on its surface and in its pores, making it easy to mix with other components during the formation of elastic packaging materials, thus ensuring overall uniform performance.

[0097] The pretreated silicone rubber compound obtained above is then used. When mixing the resin compound, it is preferable to first mix the pretreated silicone rubber with the formulation oil.

[0098] In this invention, the silica gel preferably has a density of 0.003 to 0.35 g / cc, a specific surface area of ​​700 to 2000 m² / g, and a thermal conductivity of 0.012 to 0.020 W / m²K.

[0099] Furthermore, in this invention, the second component of the resin may further include zeolite powder in the range of 0.5 to 10.0 by weight.

[0100] The zeolite described above is an aluminosilicate composed of silicon, aluminum, and oxygen, and is a microporous solid material. In addition to improving the heat resistance of elastic packaging materials, the zeolite also enhances durability, prevents rainwater from accumulating at the top of the packaging material, allows water to drain downwards, and releases internal moisture or gases to the outside of the packaging material.

[0101] In this invention, the first resin component and the second resin component are mixed in a weight ratio of 100:50 to 200 to form the above-mentioned EPU (elastic polyurethane tubing) permeable adhesive. The EPU (elastic polyurethane tubing) permeable adhesive is applied to the above-mentioned SBR (Styrene Butadiene Rubber) tire rubber chip to bond it together and strengthen the adhesion to the underlying concrete base surface.

[0102] In this invention, the EPDM (Ethylene-Propylene Diene Monomer) colored rubber chip (50) laid on the above-mentioned EPU (elastic polyurethane) permeable adhesive refers to a synthetic rubber composed of ethylene, propylene and non-conjugated diene, which has good ozone resistance, heat resistance, media resistance and safety, and can achieve the advantages of a variety of patterns and colors.

[0103] The present invention has been described in detail above with reference to the drawings and embodiments. The present invention described above is not limited to the foregoing embodiments and drawings. Various substitutions, modifications, and alterations can be made without departing from the scope of the technical concept of the present invention, which will be obvious to those skilled in the art.

Claims

1. A method for constructing elastic packaging materials including EPU permeable adhesive, characterized in that, include: The first stage involves spraying the fuse onto the foundation concrete. The second stage involves laying SBR tire rubber chips on the lower fuse line of the above-mentioned spraying. The third stage involves spraying EPU permeable adhesive onto the aforementioned laid SBR tire rubber chips; and The fourth stage involves laying EPDM colored rubber chips onto the aforementioned coated EPU permeable adhesive; the construction method for elastic packaging materials.

2. The construction method of the elastic packaging material including EPU permeable adhesive according to claim 1, characterized in that, The above-mentioned EPU permeable adhesives include: The first component of the resin consists of 30-50 parts by weight of polyol, 5-30 parts by weight of isocyanate compound, 1-30 parts by weight of amine compound, 0.1-5.0 parts by weight of chain extender, 4-10 parts by weight of solvent and 1-30 parts by weight of additive components; The second component of the resin consists of 20-35 parts by weight of olefin resin, 30-40 parts by weight of thermoplastic elastic resin, 10-20 parts by weight of formulated oil, 10-30 parts by weight of mineral filler and 1-10 parts by weight of antioxidant.

3. The construction method of the elastic packaging material including EPU permeable adhesive according to claim 2, characterized in that, The above-mentioned application method for thermoplastic elastic resins includes one or more EPU permeable block copolymers selected from SBS block copolymers, SEBS block copolymers, TPV or olefin block copolymers.

4. The construction method of the elastic packaging material including EPU permeable adhesive according to claim 2, characterized in that, EPU permeable adhesives are characterized by any one or more of calcium carbonate, tarco, silica gel, macca, clay, koflite, and bentoite.

5. The construction method of the elastic packaging material including EPU permeable adhesive according to claim 2, characterized in that, Choose one or more of the plasticizer, antioxidant and curing catalyst for EPU permeable adhesive.

6. The construction method of the elastic packaging material including EPU permeable adhesive according to claim 1, characterized in that, It also includes a fifth stage, which involves spraying the above-mentioned EPU (elastic polyurethane) permeable adhesive onto the top of the EPDM colored rubber chip after it has been laid.

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