KR101917997B1 - Apparatus for injecting glass fiber - Google Patents

Abstract

The present invention relates to a glass fiber mixing injection apparatus. The glass fiber mixing injection apparatus according to the present invention comprises: a waterproof injection part injecting waterproof materials; and a glass fiber ejection part formed within a predetermined distance from the waterproof injection part, pulverizing a tubular glass fiber glass fiber and ejecting the pulverized glass fiber according to whether the waterproof injection part operates or not so that the pulverized glass fiber is impregnated in the waterproof materials during a waterproof injecting process by the waterproof injection part, thereby injecting the glass fiber-impregnated waterproof materials to a target structure at a time.

Description

[0001] APPARATUS FOR INJECTING GLASS FIBER [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a glass fiber mixed jetting apparatus, and more particularly, to a glass fiber mixed jetting apparatus for jetting a waterproof coating film impregnated with glass fiber onto a target object.

Waterproofing works are inevitably carried out on structures that are frequently exposed to moisture such as rooftops, basements, tunnels, bridges, etc. of buildings, and cracks and aging are a concern.

Conventional waterproofing methods include asphalt-based waterproofing, cement liquid waterproofing, sheet waterproofing and film waterproofing. Especially, recently, the injection method using the rubber asphalt waterproofing material has been carried out which is superior in workability, work stability, and maintenance than the conventional rubber asphalt coating film waterproofing method. The sheet laminate waterproof coating film using such an injection device is formed by first coating a waterproofing material using a spray gun, laminating a sheet on the waterproofing material that has been coated first, and secondarily applying a waterproofing material on the sheet.

However, since the waterproof coating film is formed by a three-step process, the work is not easy, and the floating of the sheet applied on the first waterproof surface is likely to occur, and the joint portion where the sheet and the sheet overlap The impregnation with the waterproofing material is incomplete and the defect of the coating film frequently occurs.

Further, since the conventional general waterproofing method is mostly performed by hand, there is a problem that the completeness of the waterproofing process is different according to the skill of the constructor.

Korean Patent No. 10-0742824 Korean Patent No. 10-1245490

One aspect of the present invention provides a glass fiber mixed jetting apparatus that injects a waterproofing material impregnated with glass fiber into a target structure by only one injection, and dynamically controls the jetting angle and the jetting amount of the waterproofing material and the glass fiber in the jetting process.

 The technical problem of the present invention is not limited to the technical problems mentioned above, and other technical problems which are not mentioned can be understood by those skilled in the art from the following description.

The glass fiber mixed spraying apparatus according to an embodiment of the present invention includes a waterproofing material spraying unit for spraying a waterproofing material and a waterproofing material spraying unit for spraying the waterproofing material such that the waterproofing material is impregnated with the glass fiber pulverized in the waterproofing material spraying process, And a glass fiber spouting part formed within the distance for crushing the tubular glass fiber and ejecting the ground glass fiber according to whether the waterproof spray part operates or not.

And estimating a first region that is a region where the waterproofing material is sprayed by the waterproofing material spraying portion and estimating a second region that is a region in which the glass fiber pulverized by the glass fiber spraying portion is sprayed, And a control unit for controlling an injection angle or an injection amount of at least one of the waterproof material spraying unit and the glass fiber spraying unit so that the second area is matched.

The glass fiber mixed jetting apparatus generates a three-dimensional model of a jetting target object to be formed with a waterproof coating material, which is a waterproof material impregnated with the ground glass fiber, and forms a three-dimensional model uniformly on the three-dimensional model based on the jetting angle and the jetting amount of the jetting material jetting section. A control unit for controlling at least one of a three-axis attitude of the glass fiber mixed injector, an injection angle of the waterproof material injection unit, and an injection angle of the glass fiber injection unit according to the set injection path, Wherein the glass fiber mixing injecting apparatus further comprises a grip portion for gripping the glass fiber mixed jetting device by a user, the grip portion being formed of a plastic composition, wherein the plastic composition is composed of 100 parts by weight of the high-density polyethylene resin, 130 parts by weight of talc, 170 to 190 parts by weight of talc and 1 to 10 parts by weight of germanium powder And wherein the plastic composition further comprises 15 to 25 parts, each part by weight of 2 to 7 parts by weight for the glass fiber-reinforced plastics and glue to 100 parts by weight of a polypropylene resin.

According to one aspect of the present invention, when the waterproofing material is sprayed, the ground glass fibers are jetted together, so that the waterproofing material impregnated with the glass fiber can be sprayed onto the target structure by only one injection, and depending on the shape of the target structure, It is set automatically, and it is possible to dynamically control the injection angle and injection amount of the waterproof material and the glass fiber during the injection process.

1 and 2 are views showing a schematic configuration of a waterproof coating film spraying apparatus according to the present invention.
FIG. 3 and FIG. 4 are views showing a specific structure of a glass fiber mixed jetting apparatus according to an embodiment of the present invention.

The following detailed description of the invention refers to the accompanying drawings, which illustrate, by way of illustration, specific embodiments in which the invention may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the invention. It should be understood that the various embodiments of the present invention are different, but need not be mutually exclusive. For example, certain features, structures, and characteristics described herein may be implemented in other embodiments without departing from the spirit and scope of the invention in connection with an embodiment. It is also to be understood that the position or arrangement of the individual components within each disclosed embodiment may be varied without departing from the spirit and scope of the invention. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the present invention is to be limited only by the appended claims, along with the full scope of equivalents to which such claims are entitled, if properly explained. In the drawings, like reference numerals refer to the same or similar functions throughout the several views.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the drawings.

1 is a view showing a schematic configuration of a waterproof coating film spraying apparatus 1 provided with a glass fiber mixed spraying apparatus 100 according to the present invention.

The glass fiber mixed spraying apparatus 100 according to the present invention can spray the waterproof material supplied from the waterproof material storage tank 200 in a mist form. At this time, the glass fiber mixed spraying apparatus 100 can impregnate the glass fiber in the spraying process of the waterproof material, and spray the waterproof material mixed with the glass fiber to the target structure.

For this purpose, the glass fiber mixed jetting apparatus 100 can receive tubular glass fibers from the glass fiber storage tank 300. The glass fiber mixed jetting apparatus 100 may pulverize the supplied tubular glass fibers so as to jet the glass fibers in a fine particle state in the jetting process of the waterproofing material.

In addition, the glass fiber mixed jetting apparatus 100 can supply the compressed air from the compressor 400 and inject the waterproofing material and the glass fiber into the target structure. As shown in FIG. 2, the compressor 400 includes a moving means 450 such as a wheel, so that the mobility of the glass fiber mixed injector 100 connected to the compressor 400 can be assured.

The glass fiber mixing injector 100 may be connected to the compressor 400 via a driving arm 50. The driving arm 50 may be provided in the form of a joint having a degree of freedom of three degrees of freedom or more, The three-axis rotation and the three-dimensional posture of the robot can be freely set.

As described above, the waterproof coating film spraying apparatus 1 can form the waterproof coating film on the target structure by using the glass fiber mixed spraying apparatus 100 according to the present invention. At this time, in order to improve the hardness and waterproofness of the waterproof coating film, the glass fiber mixed jetting device 100 may blow the finely ground glass fiber together during the spraying of the waterproof material so that the waterproof material is impregnated with the glass fiber. In addition, the glass fiber mixed spraying apparatus 100 may be provided with an automatic spray function for uniformly distributing the waterproof coating to the target structure. Hereinafter, the specific configuration and functions of the glass fiber mixed jetting apparatus 100 will be described in detail.

FIGS. 2 and 3 are views showing a specific configuration of a glass fiber mixed jetting apparatus 100 according to an embodiment of the present invention.

Specifically, the glass fiber mixed jetting apparatus 100 according to an embodiment of the present invention includes a waterproofing material jetting unit 110 and a glass fiber jetting unit 120.

The waterproofing material spraying unit 110 can receive the waterproofing material from the waterproofing material storage tank 200. The waterproofing material spraying unit 110 can spray the waterproofing material using compressed air supplied from the compressor 400.

The waterproofing material spraying unit 110 may include a means for adjusting the angle of spraying of the waterproofing material and a means for controlling the spraying amount of the waterproofing material.

The glass fiber spouting unit 120 can blow out the glass fiber supplied from the glass fiber storage tank 300. The glass fiber spouting part 120 includes a crushing part 121 for crushing the tubular glass fiber supplied from the glass fiber storage tank 300, an injection part 122 for injecting the crushed glass fiber, And an adjusting unit 123 for adjusting the angle and the injection amount.

The crushing unit 121 may crush the tubular glass fibers supplied from the glass fiber storage tank 300 to a predetermined particle size or less. The crushing section 121 may be composed of a blade for cutting the glass fiber into microparticles, a motor for providing rotational force to the blade, and the like. The crushing unit 121 is not limited to the above-described configuration, and may further include various configurations for crushing the glass fiber finely.

The spouting portion 122 can blow out the ground glass fiber by the crushing portion 121. The jetting part 122 may be connected to the crushing part 121 to be supplied with the crushed glass fiber from the crushing part 121. The sprayer 122 is preferably disposed within a predetermined distance from the waterproofing sprayer 110 so that the waterproofing material and the ground glass fiber are mixed and injected in the waterproofing material spraying process by the waterproofing sprayer 110.

The adjusting unit 123 can adjust the spraying angle of the spraying unit 122 and the spraying amount of the glass islands to be sprayed. As described above, the spraying unit 122 is disposed within a predetermined distance from the waterproofing material spraying unit 110, and the sprayed water is sprayed onto the waterproofing material spraying unit 110 so that the ground glass fiber is impregnated into the spraying area of the waterproofing material. The adjusting part 123 can adjust the spraying angle of the spraying part 122.

In addition, the glass fiber mixed injection apparatus 100 includes a handle 130 for gripping the glass fiber mixed injection apparatus 100 by a user and a handle 130 for gripping the glass fiber spraying unit 120, The control unit 123 may further include an operation unit (not shown) for controlling the injection angle and the injection amount.

In some other embodiments, the glass fiber mixed jetting apparatus 100 according to the present invention may further include a control unit (not shown).

The control unit (not shown) may control the waterproofing material spraying unit 110 and the regulating unit 123 of the glass fiber spraying unit 120 to automatically control the spraying angle and the spraying amount of the waterproofing material and the ground glass fiber. Specifically, the control unit (not shown) can estimate the first region where the waterproofing material is sprayed based on the information about the spray angle and the spraying amount of the waterproof spraying unit 110. At the same time, the control unit (not shown) can estimate the second region where the pulverized glass fiber is ejected based on the information on the injection angle and the injection amount of the jetting unit 122 set by the control unit 123.

The control unit (not shown) generates a three-dimensional virtual space, and generates a three-dimensional virtual space in which the first region and the second region estimated on the three-dimensional space are formed at the same position, The angle can be set dynamically. Therefore, the glass fiber mixed jetting apparatus 100 according to the present invention has an effect of preventing the amount of glass fiber impregnation originally set by the user from being inoperable

In some other embodiments, the controller (not shown) may automatically control the drive arm 50 connected to the glass fiber mixed jetting apparatus 100 according to the structure of the target structure. That is, the control unit (not shown) automatically sets the moving path of the glass fiber mixed jetting apparatus 100 so that the waterproof coating film can be uniformly set on the target structure to be formed with the waterproof coating film, The driving arm 50 can be controlled so as to spray the waterproof material impregnated with the glass fiber while moving along the movement path.

For this purpose, the glass fiber mixed jetting apparatus 100 according to another embodiment of the present invention further includes at least one sensor unit (not shown) for sensing a target structure and providing information on the target structure to a control unit . The sensor unit (not shown) may include at least one of a camera for photographing a target structure for forming a waterproof coating film, and a proximity sensor for measuring a distance to the target structure. The sensor unit (not shown) is preferably arranged to sense the front region of the glass fiber mixed spraying apparatus.

The control unit (not shown) can generate (model) a virtual three-dimensional model of the injection target object based on the sensing information of the target structure measured by the sensor unit (not shown). The control unit (not shown) can set an injection path for uniformly forming a waterproof coating on the three-dimensional model, based on the information about the spraying angle and the spraying amount of the currently set waterproof material and the glass fiber. Here, the injection path may be defined as a path in which the glass fiber mixed injector 100 moves while maintaining a certain distance from the curvature of the surface of the target structure in order to completely form the waterproof coating on the surface of the target structure. The control unit (not shown) may set a spray path so that the waterproof coating film is not overlapped and sprayed based on the information about the spray angle and the spray amount of the waterproof material and the glass fiber.

Then, the controller (not shown) may control the driving arm 50 to move the glass fiber mixed injector 100 according to the set injection path. In this process, the control unit (not shown) adjusts the three-axis attitude of the glass fiber mixed injector 100, the spray angle of the waterproof sprayer 110, or the spray angle of the waterproof sprayer 110 according to the current position of the glass fiber mixed spraying apparatus 100 on the spray path So that at least one of the ejection angles of the glass fiber spouting portions can be controlled to be variable. In particular, the control unit (not shown) may control the injection angle and the injection amount to vary according to whether the area of the target structure corresponding to the current position of the injection path is planar or curved. Accordingly, the glass fiber mixed spraying apparatus 100 ejects the waterproof material along the automated path, and the waterproof coating film of the constant quality can be always formed.

The waterproof coating film spraying apparatus 1 according to the present invention is provided with a part that can be damaged by an external force such as friction or impact, for example, a grip part of the glass fiber mixed spraying apparatus 100, a moving part of the compressor 400 And the like can be formed from the plastic composition according to the present invention.

The plastic composition according to one embodiment of the present invention includes polypropylene resin, high density polyethylene resin (HDPE), talc and germanium powder. Accordingly, the waterproof coating film spraying apparatus 1 according to the present invention can improve the mechanical properties such as heat resistance, durability and the like in the fixing process of forming the waterproof coating on the target structure, and the twisting phenomenon can be improved.

Polypropylene resin is a thermoplastic resin which is obtained by polymerization of propylene and is known as an environmentally friendly material which is inexpensive in performance and does not have a risk of being in contact with the contents of foods or cosmetics. The polypropylene resin is excellent in chemical resistance, mechanical properties , And excellent in thermal properties. The polypropylene may use at least one selected from a propylene homopolymer, a random copolymer and a block copolymer, but a homopolymer and a random copolymer are mixed in a weight ratio of 3: 2 to improve mechanical properties .

High-density polyethylene (HDPE) resin is a synthetic resin produced by polymerizing ethylene, and has excellent flowability, rigidity, impact resistance, electrical insulation, moldability, and cold resistance. The high-density polyethylene resin may be mixed with the above-mentioned polypropylene resin to improve the moldability by reinforcing the tensile force in the production of the plastic sheet or the product, and a variety of known products may be used.

The talc improves the mechanical properties such as the strength and heat resistance of the plastic composition, and it is preferable to use a talc powder having a particle size of 150 to 200 mesh for mixing with polypropylene resin or the like. The talc may be used in admixture with other filler components, and may preferably be mixed with the dolomite powder at a weight ratio of 1: 1 to contribute to improvement of the durability of the plastic composition.

Germanium is a silvery white metal, which has the effect of promoting metabolism by emitting a large amount of far infrared rays and anions which are beneficial to the human body. Also, due to its semiconducting nature, germanium has a function of increasing the vitality of germanium ions (outer electrons) when they come into contact with the skin. When entering the body, it is released out of the body within 20 ~ 30 hours with various harmful substances, so there is no poisoning or side effects at all. Particularly, when the particles of inorganic germanium come into contact with human skin, semiconductor properties are introduced into the skin tissue by the osmotic action of the outer electron. It has been found that germanium, which penetrates into capillaries in subcutaneous tissues, moves electrons in the blood vessels through the blood vessel walls, performs blood purification, normalizes blood, and discharges excess electron flow to relieve pain. The germanium can be used in the form of powder. It is preferable that the germanium ore is finely cut to 3 cm or less and then the cut germanium ore is pulverized to a particle size of 80 to 100 mesh.

In one embodiment, the plastic composition preferably comprises 110 to 130 parts by weight of high density polyethylene resin, 170 to 190 parts by weight of talc, and 1 to 10 parts by weight of germanium powder per 100 parts by weight of the polypropylene resin. When the plastic sheet is produced by using the plastic composition, it is important to control the specific gravity of the plastic composition in order to eliminate the twisting phenomenon. The specific gravity is preferably 1.02 to 1.10, more preferably 1.03 to 1.05. That is, when the content of the high-density polyethylene resin is less than 110 parts by weight or the talc is less than 170 parts by weight based on 100 parts by weight of the polypropylene resin, mechanical properties such as durability and the like are limited. Is more than 130 parts by weight or the talc is more than 190 parts by weight, there is a possibility that the specific gravity of the plastic composition is increased and the moldability may be deteriorated. If the amount of the germanium powder is less than 1 part by weight with respect to 100 parts by weight of the polypropylene resin, far infrared rays emission effect due to germanium is difficult to manifest. If the amount is more than 10 parts by weight, .

In one embodiment, the plastic composition described above may comprise glass fiber reinforced plastic to enhance impact resistance. Fiberglass Reinforced Plastic (FRP) is a material made mainly of glass-based minerals and a combination of glass-based minerals with aromatic nylon fibers and thermosetting resins. The glass-based mineral may be at least one selected from the group consisting of silica sand, limestone, feldspar, and soda ash, but is not limited thereto. As the thermosetting resin, various known thermosetting resins can be used, and preferably, a polyester or an epoxy resin can be used. Glass fiber reinforced plastics can be produced by mixing materials such as glass-based minerals and putting them in a melting furnace. Each air layer sealed between the glass fibers functions as a heat insulating layer, so that it is excellent in nonflammability, sound absorption properties and workability. It is also stronger than iron, lighter than aluminum, and does not rust. Also, it is excellent in nonflammability and is not deformed by heat and is easy to be processed. At this time, it is preferable to add glue to improve the mixing property with glass fiber reinforced plastic (pellet type) and PVC. Glue is a substance that solidifies the liquid of organs such as animal's skin, intestines, bones, etc., and can solve the problems such as the release of environmental hormones while improving the binding force of each component. The glass fiber reinforced plastic and the glue are preferably contained in an amount of 15 to 25 parts by weight and 2 to 7 parts by weight based on 100 parts by weight of the polypropylene resin. If the amount is less than the above range, the impact resistance strengthening and embossing may be deteriorated, and if it exceeds the above range, a cracking phenomenon may occur during production of the product, which is uneconomical.

In one embodiment, the cork powder may be included in the handle of the glass fiber mixing injector 100 or in the moving means of the compressor 400 using the plastic composition to improve the elasticity of the wheels. The cork powder can be prepared by removing the shell of oak oak and then crushing it. For the cork powder to be mixed with polypropylene resin or the like, it is preferable to use fine pulverized particles which are sieved through a mesh of 400 mesh or more. The cork powder is preferably contained in an amount of 5 to 10 parts by weight based on 100 parts by weight of the polypropylene resin. When the cork powder is less than 5 parts by weight, the degree of improvement of the elasticity is insignificant. When the cork powder is more than 10 parts by weight, voids formed in the inside of the product during manufacture may be increased and durability may be weakened.

In addition, sucrose (C12H22O11) powder may be further added to improve the mixing property of the cork powder and other ingredients. The sucrose not only smoothes the pores formed between the cork powder, but also tends to become viscous during the mixing process with the PVC, so that it can catch the molecules that cause the problem of bad odor, which can contribute to solving the problem of bad odor. The sucrose is preferably a powder that has been passed through a 500-mesh net, and is preferably contained in an amount of 1 to 4 parts by weight based on 100 parts by weight of the polypropylene resin. When sucrose is less than 1 part by weight, the effect expressed by sucrose is insignificant. When the amount of sucrose is more than 4 parts by weight, it is not only economical but also may weaken the mechanical properties of the product.

In one embodiment, the plastic composition may comprise a white powder. Potassium alum (potassium aluminum sulfate, AlK (SO4) 2 12H2O) can be used for alum, and it can be obtained from natural alum. Concretely, it can be produced by dissolving alunculus in water and filtering it, then breaking it, and cooling it if irregularly shaped crystals are formed. It is preferable that the alum is contained in an amount of 2 to 5 parts by weight based on 100 parts by weight of the polypropylene resin. When the content of alum is less than 2 parts by weight, the effect by alum is insignificant, and when it is more than 5 parts by weight, it is uneconomical.

In one embodiment, the present invention may include Boehmite (AlO (OH) 2) to improve antibacterial properties. Boehmite can be any of γ-boehmite, α-boehmite and pseudo-boehmite. Of these, γ-boehmite excellent in crystallinity and excellent in thermal stability and chemical stability, structurally neutral, and excellent in antibacterial property is preferably used. The γ-boehmite can be prepared by supercritical synthesis of only water (pure water) and aluminum (Al). The boehmite is preferably contained in an amount of 3 to 8 parts by weight based on 100 parts by weight of the polypropylene resin. If the content of boehmite is less than 3 parts by weight, it is difficult to exhibit an antimicrobial effect to be achieved. If the content is more than 8 parts by weight, there is a fear that mixing property with other components is impaired.

Hereinafter, the structure and effects of the present invention will be described in more detail with reference to specific examples and comparative examples. However, this embodiment is intended to explain the present invention more specifically, and the scope of the present invention is not limited to these embodiments.

[Example 1]

180 kg of polypropylene resin, 200 kg of high density polyethylene resin (HDPE), 310 kg of talc and 15 kg of germanium powder were mixed to prepare a plastic composition.

[Example 2]

And 36 kg of glass fiber reinforced plastic and 9 kg of glue were further mixed to prepare a plastic composition.

[Example 3]

9 kg of cork powder, 5 kg of sucrose powder, 5 kg of white powder, and 9 kg of gamma-boehmite were further mixed to prepare a plastic composition.

[Comparative Example]

Was prepared in the same manner as in Example 1, except for talc, and this was used as a comparative example.

[Experimental Example 1: Evaluation of impact resistance]

A specimen (20 cm * 30 cm, thickness 20 mm) was prepared using the plastic compositions of the examples and comparative examples. A weight of 3 kg was dropped at a height of 2 m and the degree of breakage of each specimen was measured. .

[Table 1]

As can be seen from the above Table 1, it was found that the embodiments including talc are superior in impact resistance to the comparative examples which do not include talc. In particular, in Examples 2 and 3 containing glass fiber reinforced plastics, the best results were obtained.

[Experimental Example 2: Evaluation of heat resistance]

The specimen of Experimental Example 1 was heated for 3 hours in a hot air circulating heating furnace maintained at 80 ° C, and yellowing degree was visually observed. The results are shown in Table 2 below.

[Table 2]

As can be seen from the above Table 2, in the Examples, yellowing portions were hardly observed unlike the Comparative Examples. As a result, it was found that the heat resistance of the example was very excellent as compared with the comparative example.

[Experimental Example 3: Evaluation of antimicrobial activity]

The antibacterial activity test (JIS Z 2801) was carried out for Example 1, Example 3 and Comparative Example. Aspergillus niger ATCC 9642 (fungus) was used as the test strain and the antibacterial activity (antibacterial activity value) was evaluated and shown in Table 3 below.

[Table 3]

The antimicrobial activity value refers to a value obtained by evaluating the degree of antimicrobial activity by comparing the number of strains cultured for a certain period of time. When the value is 1 or more, 90% or more of the strains are present, 2 or more are 99% , More than 99.99% of the strain is over 4, and more than 5 is more than 99.999% of the strain is killed.

As can be seen from the above Table 3, it was predicted that the antibacterial activity of Example 3 including gamma-boehmite was much better than those of other cases.

On the other hand, the waterproofing material sprayed by the waterproofing material spraying unit 110 may include a sealant composition.

The adhesive composition according to one embodiment of the present invention is an adhesive composition comprising a base and a curing agent, wherein the base is composed of 30 to 90 parts by weight of an ethylene vinyl acetate (EVA) resin, 1 to 30 parts by weight of polyvinyl alcohol (PVA) 10 to 30 parts by weight of water, 5 to 30 parts by weight of calcium carbonate, 0.1 to 1 part by weight of a surfactant and 1 to 20 parts by weight of a thixotropic agent, and the curing agent includes an isocyanate compound. The present invention relates to a water-soluble two-component adhesive composition comprising a subject and a curing agent, which can be applied and cured to produce an adhesive sheet or an adhesive, and is excellent in physical properties such as adhesiveness and heat resistance, Inorganic board such as wood board or magnesium board, and PVC sheet.

The subject basically comprises an ethylene vinyl acetate (EVA) resin, polyvinyl alcohol (PVA), water, calcium carbonate, a surfactant and a thixotropic agent, the ethylene vinyl acetate resin being the main component of the subject, The strength of the adhesive sheet or the adhesive can be kept constant. Conventionally, an epoxy resin is used as a main component of an adhesive sheet or an adhesive. However, in the case of an adhesive sheet or an adhesive using an epoxy resin, volatile organic compounds such as benzene toluene are released to adversely affect the environment and human body. However, the present invention has solved the problems such as environmental problems by excluding the epoxy resin.

Polyvinyl alcohol (PVA) plays a role in improving the heat resistance, water resistance and adhesiveness of an adhesive sheet or adhesive to be produced. The polyvinyl alcohol is preferably contained in an amount of 1 to 30 parts by weight based on 30 to 90 parts by weight of the ethylene vinyl acetate resin. When the amount of the polyvinyl alcohol is less than 1 part by weight, it is difficult to improve the heat resistance or the like, and when it exceeds 30 parts by weight, the relative content of ethylene vinyl acetate is decreased, so that the cohesive force of the adhesive sheet or the adhesive may be weakened. In addition, when the present invention is used in an ondol floor or the like, antimony oxide and zirconium oxide may be used together with polyvinyl alcohol in order to supplement the functionality of polyvinyl alcohol. Antimony oxide and zirconium oxide may enhance the heat resistance of the adhesive sheet or adhesive to be produced, and they are preferably contained in an amount of 5 to 10 parts by weight based on 30 to 90 parts by weight of the ethylene vinyl acetate resin. Below this range, the effect of improving the heat resistance is insignificant, and when it exceeds the above range, it is not economical.

Water is used as the solvent of the subject. Unlike conventional adhesive sheets or adhesives, the present invention has the effect of solving environmental pollution problems because volatile organic solvents are not used. The water is preferably contained in an amount of 10 to 30 parts by weight based on 30 to 90 parts by weight of the ethylene vinyl acetate resin. If the amount of water is less than 10 parts by weight, the ethylene vinyl acetate resin or the like can not be effectively dissolved, and if it exceeds 30 parts by weight, the water may become too thin to lower the strength of the adhesive sheet or the adhesive.

Calcium carbonate controls the viscosity of the adhesive composition and reduces shrinkage during curing. The calcium carbonate is preferably contained in an amount of 5 to 30 parts by weight based on 30 to 90 parts by weight of the ethylene vinyl acetate (EVA) resin. When the amount of calcium carbonate is less than 5 parts by weight, sufficient shrinkage does not occur during curing, and the hardness of the adhesive sheet or adhesive may become poor. When the amount exceeds 30 parts by weight, the viscosity may become too tight and productivity may be deteriorated. In addition, the present invention may use various materials such as wormwoods and clays to replace calcium carbonate. For example, dolomite and / or talc may be used. At this time, it is preferable to mix dolomite and talc in a weight ratio of 1: 1 in order to improve mechanical properties. It is also preferable that the powder has a particle size of 150 to 200 mesh. When the powder is used to have a particle size of 150 to 200 mesh, it is mixed with other components such as ethylene vinyl acetate resin Can be improved.

The surfactant is used to reduce the surface tension when mixing the adhesive composition and to improve the application property. The surfactant is preferably contained in an amount of 0.1 to 1 part by weight based on 30 to 90 parts by weight of the ethylene vinyl acetate resin. As the surfactant, known nonionic surfactants and anionic surfactants can be used, but in order to effectively reduce the surface tension, it is preferable to use a gemini type sulfonic acid type surfactant containing an alkyl chain of 8 to 14 carbon atoms.

The thixotropic agent is to prevent the adhesive composition from flowing down by suppressing the separation phenomenon between the subject and the curing agent when the adhesive composition is applied to the adhesive sheet or the adhesive, and various known various substances such as silica, acryl copolymer and the like But it is preferable to use a clay. Clay is an aggregate of fine hydrated silicate minerals. It refers to a material that is mixed with water in an appropriate amount to produce plasticity when kneaded, rigidity when dried, and sintered when baked at high temperature. Specifically, at least one powder selected from the group consisting of kaolinite, fumed silica and bentonite may be used, but in order to obtain the best effect, it is preferable to use a mixture of fumed silica and bentonite in a weight ratio of 1: 1. The thixotropic agent is preferably contained in an amount of 1 to 20 parts by weight based on 30 to 90 parts by weight of the ethylene vinyl acetate resin. If the thixotropic imparting agent is less than 1 part by weight, the flowability can not be controlled sufficiently, and if the thixotropic imparting agent is more than 20 parts by weight, the flowability is excessively vanished and the productivity may be lowered.

In addition, the subject may further include sodium silicate to improve the adhesive strength of the adhesive sheet or adhesive to be produced. Unlike conventional adhesives, sodium silicate does not cause pollution and is environmentally friendly and has excellent adhesion. The sodium silicate is preferably contained in an amount of 3 to 7 parts by weight based on 30 to 90 parts by weight of the ethylene vinyl acetate resin based on the solid content. When the amount of sodium silicate is less than 3 parts by weight, the degree of improvement of the adhesion performance is insignificant. When the amount is more than 7 parts by weight, miscibility with other components may be deteriorated.

The subject may further include molybdenum disulfide to improve the abrasion resistance of the adhesive sheet or adhesive to be produced. Molybdenum disulphide (MoS2) is found in thin veins in minerals and is mined and used as a lubricant. Molybdenum disulfide (MoS2) has inherent properties of a hexagonal crystal structure in which shear is likely to occur, such as graphite, but the lubricating action is superior to that of graphite. The molybdenum disulfide is preferably contained in an amount of 1 to 5 parts by weight based on 30 to 90 parts by weight of the ethylene vinyl acetate resin based on the solid content. When the amount of the molybdenum disulfide is less than 1 part by weight, the abrasion resistance can not be improved effectively, and when it exceeds 5 parts by weight, the adhesion strength may be deteriorated. At this time, copper powder may be mixed with molybdenum disulfide.

The subject may further include a flame retardant agent to improve the flame retardancy of the adhesive sheet or adhesive to be produced. The flame retardant is preferably contained in an amount of 1 to 5 parts by weight based on 100 parts by weight of the ethylene vinyl acetate resin. When the amount of the flame retardant is less than 1 part by weight, the degree of improvement of the flame retardancy is insignificant. When the amount is more than 5 parts by weight, the flame retardant agent is not only economical but also has poor compatibility with other components. The flame retardant may be a white powder. Potassium alum (potassium aluminum sulfate, AlK (SO4) 2 12H2O) can be used for alum, and it can be obtained from natural alum. Concretely, it can be produced by dissolving alunculus in water and filtering it, then breaking it, and cooling it if irregularly shaped crystals are formed.

In addition, the subject may further include aluminum hydroxide to improve the antimicrobial properties of the adhesive sheet or adhesive to be produced. It is preferable to use boehmite (AlOH (OH)) as the aluminum hydroxide. Boehmite can be any of γ-boehmite, α-boehmite and pseudo-boehmite. Of these, γ-boehmite excellent in crystallinity and excellent in thermal stability and chemical stability, structurally neutral, and excellent in antibacterial property is preferably used. The γ-boehmite can be prepared by supercritical synthesis of only water (pure water) and aluminum (Al). The aluminum hydroxide is preferably contained in an amount of 5 to 10 parts by weight based on 30 to 90 parts by weight of ethylene vinyl acetate. If the content of aluminum hydroxide is less than 5 parts by weight, it is difficult to exhibit the antimicrobial effect to be achieved. If the content is more than 10 parts by weight, the compatibility with other components may be impaired.

As the curing agent, those containing an isocyanate compound can be used. The isocyanate compound has excellent solubility in water, and the curing agent can be uniformly mixed on the subject to maintain proper viscosity and hardness, thereby shortening the curing time and prolonging the pot life when mixing the curing agent and the curing agent, . The isocyanate compound is preferably a compound containing two or more isocyanate groups in one molecule, and is preferably a compound containing at least two isocyanate groups in a molecule, such as toluene-diisocyanate (TDI), hydrogenated TDI, trimethyl propane- Triisocyanate (TTI), diphenylmethane-4,4-diisocyanoate (MDI), hydrogenated MDI, or hexamethylene-diisocyanate (HDI) Is preferably used. The curing agent is preferably contained in an amount of 1 to 20 parts by weight based on 100 parts by weight of the subject.

The above-mentioned adhesive sheet or adhesive is prepared by preparing a water-soluble two-component adhesive composition by mixing a subject and a curing agent, and then applying and curing the adhesive composition to a work site. If necessary, And may further include a dispersant, an antifoaming agent, an antiseptic agent, a thickener, and the like within the range not impairing the object of the present invention, and may further include a coloring component to realize various colors of the adhesive sheet or adhesive to be produced have.

Hereinafter, the structure and effects of the present invention will be described in more detail with reference to specific examples and comparative examples. However, this embodiment is intended to explain the present invention more specifically, and the scope of the present invention is not limited to these embodiments.

[Example 1]

80 parts by weight of ethylene vinyl acetate, 20 parts by weight of polyvinyl alcohol, 25 parts by weight of water, 10 parts by weight of calcium carbonate, 1 part by weight of a surfactant and 5 parts by weight of a thixotropic agent were mixed to prepare a subject. Toluene-diisocyanate and 25 parts by weight of a curing agent containing toluene-diisocyanate (TDI) were mixed and cured to prepare an adhesive sheet or an adhesive.

At this time, a gemini surfactant having 8 carbon atoms was used as a surfactant. The overall process of synthesis of the surfactant started with the reaction of diamine with 1-bromoalkane. 0.1 mole of N, N, N ', N'-tetramethyl-1,3-diaminopropane (N, N', N'- -bromooctane) was added to 300 g of acetonitrile and stirred for 30 minutes. The solution was refluxed at 353 K for 12 hours, and then the acetonitrile solvent was removed using a rotary evaporator. 500 g of diethylether was added to the resulting product to recrystallize the product. After filtering, it was washed with 500 g of diethyl ether and unreacted impurities were removed. The product thus obtained was treated in a 323 K vacuum oven for 12 hours to remove residual solvent to prepare a gemini surfactant.

[Example 2]

Except that 5 parts by weight of atomium oxide and 5 parts by weight of zirconium oxide were further added in the form of powder in the same manner as in Example 1,

[Example 3]

Except that 5 parts by weight of sodium silicate, 3 parts by weight of molybdenum disulfide, 3 parts by weight of alumina and 8 parts by weight of? -Behohexite were further added in powder form to the subject, and this was prepared in the same manner as in Example 3 Respectively.

[Comparative Example]

A comparative epoxy epoxy flooring adhesive (SEP-4300, manufactured by Samchang Chemical Co., Ltd.) was used as a comparative example.

[Experimental Example 1: Adhesion Test]

An adhesive strength test (KS F 4715) was conducted for Examples and Comparative Examples, and the results are summarized in Table 4 below.

[Table 4]

The adhesion strength of LH construction was 0.8 N / mm < 2 > or more, and both the examples and the comparative examples satisfied the acceptance criteria. However, it was found that the bonding strengths of the examples were superior to those of the comparative examples.

[Experimental Example 2: Evaluation of heat resistance]

The adhesive sheets or adhesives of Examples and Comparative Examples were heated for 8 hours in a hot-air circulating heating furnace maintained at 80 캜, and the yellowing degree was visually observed. The results are shown in Table 5 below.

[Table 5]

As can be seen from the above Table 5, in the Examples, yellowing portions were hardly observed unlike the Comparative Examples. As a result, it was found that the heat resistance of the example was very excellent as compared with the comparative example.

[Experimental Example 3: Evaluation of antimicrobial activity]

The adhesive compositions of Example 3 and Comparative Examples were subjected to an antibacterial activity test (JIS Z 2801). Aspergillus niger ATCC 9642 (fungus) was used as a test strain and the antibacterial activity (antibacterial activity value) was evaluated and shown in Table 6 below.

[Table 6]

The antimicrobial activity value refers to a value obtained by evaluating the degree of antimicrobial activity by comparing the number of strains cultured for a certain period of time. When the value is 1 or more, 90% or more of the strains are present, 2 or more are 99% , More than 99.99% of the strain is over 4, and more than 5 is more than 99.999% of the strain is killed.

As can be seen from the above Table 6, it was found that the antibacterial activity of Example 3 including gamma-boehmite was much better than that of Comparative Example.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined in the appended claims. It will be possible.

100: Glass fiber mixed jetting device
110: Waterproofing sprayer
120: Glass fiber spout

Claims (2)

A waterproofing spraying part for spraying the waterproofing material; And
The waterproofing material is sprayed on the waterproofing material by spraying the waterproofing material so that the waterproofing material is impregnated with the glass fiber, the waterproofing material is formed within a predetermined distance from the spraying part and pulverizes the tubular fiberglass, And a glass fiber ejecting portion for ejecting the glass fiber,
Dimensional model for a spray target object to be formed with a waterproof coating material, which is a waterproof material impregnated with glass fiberglass impregnated therein, and a spray path for uniformly forming a waterproof coating film on the three-dimensional model based on an injection angle and an injection amount of the waterproof material sprayer And a control unit for controlling at least one of a three-axis attitude of the glass fiber mixed injector, an injection angle of the waterproof material injection unit, and an injection angle of the glass fiber injection unit according to the set injection path,
The glass fiber mixed jetting apparatus further comprises a grip portion for gripping the glass fiber mixed jetting apparatus by a user,
Wherein the handle is formed of a plastic composition,
Wherein the plastic composition comprises 110 to 130 parts by weight of high-density polyethylene resin, 170 to 190 parts by weight of talc and 1 to 10 parts by weight of germanium powder per 100 parts by weight of polypropylene resin,
Wherein the plastic composition further comprises 15 to 25 parts by weight and 2 to 7 parts by weight of the glass fiber reinforced plastic and the glue with respect to 100 parts by weight of the polypropylene resin.

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