WO2015141953A1 - 자동차 배터리용 방수 테이프 및 그 제조방법 - Google Patents
자동차 배터리용 방수 테이프 및 그 제조방법 Download PDFInfo
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- WO2015141953A1 WO2015141953A1 PCT/KR2015/001824 KR2015001824W WO2015141953A1 WO 2015141953 A1 WO2015141953 A1 WO 2015141953A1 KR 2015001824 W KR2015001824 W KR 2015001824W WO 2015141953 A1 WO2015141953 A1 WO 2015141953A1
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- waterproof tape
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/29—Laminated material
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
- H01M50/24—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/22—Expanded, porous or hollow particles
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2203/00—Applications of adhesives in processes or use of adhesives in the form of films or foils
- C09J2203/33—Applications of adhesives in processes or use of adhesives in the form of films or foils for batteries or fuel cells
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/40—Additional features of adhesives in the form of films or foils characterized by the presence of essential components
- C09J2301/41—Additional features of adhesives in the form of films or foils characterized by the presence of essential components additives as essential feature of the carrier layer
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2433/00—Presence of (meth)acrylic polymer
- C09J2433/006—Presence of (meth)acrylic polymer in the substrate
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Definitions
- the present invention relates to a waterproof tape for a car battery and a method of manufacturing the same, and more particularly, to effectively prevent the ingress of water from a close gap on a part of a car battery assembly even with a thin thickness, and to have excellent impact resistance to damage caused by external impact.
- the present invention relates to a waterproof tape for a car battery and a method of manufacturing the same.
- every vehicle includes an ignition to start the engine, as well as a number of necessary devices for its operation, most of which are powered by electricity. Accordingly, the vehicle is provided with a generator for supplying necessary power to devices that use electricity as a power source, and since the generator is driven by an engine, a battery for supplying operating power to the starting ignition device is provided. Also necessarily provided together.
- the battery is connected to not only the ignition device but also various electric devices so that each electric device can be operated as needed even when the engine is not started. In contrast, the battery is charged by the generator during engine start.
- Such a battery is generally installed in an engine room in which various devices are collected. Since the front and bottom surfaces of the vehicle are formed to communicate with the outside for heat dissipation and cooling, special attention is required to waterproof the battery. Accordingly, the battery is mounted to be located above the so-called dosing line, which is the water level from the ground that does not interfere with the running of the vehicle even when water is accumulated in the driving path as in the rainy season, and can block rainwater penetrating from the top. Waterproofing is achieved.
- the battery when the flooded part of the vehicle crosses over the wire line due to a heavy rain or the like, for example, the battery may be soaked with water, thereby shortening the life of the battery and causing a fatal adverse effect on the vehicle operation.
- the military truck is a serious problem due to the flooding of the battery due to frequent underwater operation such as Doha ( ⁇ ) city.
- the battery is installed in the interior of the vehicle. In this case, the waterproofing of the battery can be achieved, but the harmful gas generated during the chemical reaction of the battery causes the passengers' dissatisfaction.
- the waterproof tape which provided the adhesive layer in the base material is used according to various objectives, such as joining and fixing a part in a battery. It is also known to use a foam as a substrate, for example, in order to improve the adhesion with the adherend in the conventional waterproof tape.
- the waterproof tape may have a function of impact resistance and shock absorption in addition to basic roles such as adhesion and waterproofing. That is, while preventing water from infiltrating between the adherends, the tape can absorb the impact force without damaging the impact force applied to the adherend, thereby preventing damage to the adherend.
- the foaming agent which is the base of the tape, may have some of these impact resistance and shock absorbing functions.
- the width of the tape is narrow or thin, the impact resistance and shock absorbing functions are not sufficiently realized.
- Patent Document 1 Japanese Laid-Open Patent No. 2001-152111
- Patent Document 2 Domestic Publication No. 2002-0014120
- the present invention has been made in view of the above-described conventional problems, and in order to maximize the watertightness of a car battery, it exhibits excellent adhesion and adhesion and impact resistance with an adherend even at a thin thickness, and a gap existing at an interface between the member and the adhesive layer.
- the main object of the present invention is to provide a waterproof tape for a car battery and a method of manufacturing the same having a level of waterproofness that can be effectively covered.
- Waterproofing tape for a car battery according to the present invention and a manufacturing method thereof a double-sided tape comprising a base material layer and an adhesive layer having a filler layer on one surface, the filler layer includes an impact filler having an acrylic binder and a plurality of hollow fine particles
- the hollow fine particles made of a thermoplastic material containing 15 to 40 parts by weight of monomer with respect to 100 parts by weight in total, includes a first coating film having a hollow part.
- the hollow fine particles 50 to 80 parts by weight of calcium carbonate (calcium carbonate), based on 100 parts by weight of the total, further comprises a second coating film disposed around the first coating film It may include.
- the filler layer may comprise an impact filler of 5 to 60 parts by weight based on 100 parts by weight of the acrylic binder.
- the monomer of the first coating film 15 to 40 parts by weight of acrylonitrile, phosphate methacrylate and alkali stripper based on 100 parts by weight of the hollow particulates It may be a copolymer including at least one of polyester acrylate (Alkali strippable polyester acrylate).
- the base layer is colored in black
- the black colorant may comprise at least one or more of carbon black or iron sulfide.
- the filler layer is colored in black
- the black colorant may include at least one or more of carbon black or iron sulfide.
- a method of manufacturing a waterproof tape by forming an adhesive layer on at least one surface of the substrate layer, wherein the substrate layer has an impact resistance having an acrylic binder and a plurality of hollow fine particles on one surface
- the liquid hydrocarbon in the step of preparing the hydrogen dispersion, is 1 to 10 parts by weight of 2-methylbutane and 1 to 10 parts by weight of 2-methylpropane with respect to 100 parts by weight of the total hollow particles It may include.
- the dispersant in the step of providing the hydrogen dispersion, may be a surfactant.
- the monomer in the preparing of the particulate crystals, may be a copolymer of 15 to 40 parts by weight of acrylonitrile and other acrylics based on 100 parts by weight of the total hollow particles.
- the step of preparing the undeveloped microspare, the undeveloped microspare may be heated at 170 to 190 °C.
- the step of forming the second coating film, the expanded micro spare and the calcium carbonate is put into the reactor to inject air at a temperature of 130 to 150 °C to float inside the reactor step; And forming a second coating film while the calcium carbonate is embedded in an outer wall of the first coating film of the developed micro spare. It may include.
- the base layer is colored in black
- the black colorant may comprise at least one or more of carbon black or iron sulfide.
- the filler layer is colored in black, and the black colorant may include at least one or more of carbon black or iron sulfide.
- the waterproof tape for an automobile battery according to an embodiment of the present invention exhibits excellent adhesion with an adherend even with a thin thickness, thereby effectively preventing the ingress of water from the adhesion gap on the parts of the automobile battery assembly, and has a wide width of the tape. Even if the burr or the thickness is thin, the impact resistance is excellent, thereby providing the effect of preventing damage caused by external impact.
- FIG. 1 is a side cross-sectional view showing a waterproof tape according to an embodiment of the present invention.
- Figure 2 is a graph showing the comparison of the adhesion test results of Examples and Comparative Examples of the present invention.
- Figure 3 is a graph showing a comparison of the impact resistance test results of Examples and Comparative Examples of the present invention.
- FIG. 4 is a flowchart illustrating a method of manufacturing a waterproof tape according to an embodiment of the present invention.
- FIG. 5 is a flowchart illustrating a method of manufacturing an impact resistant filler of a filler layer in a waterproof tape according to an exemplary embodiment of the present invention.
- FIG. 6 is a schematic view schematically illustrating a reactor for forming a second coating film on a microspare developed according to an embodiment of the present invention.
- FIG. 1 is a side cross-sectional view showing a waterproof tape according to an embodiment of the present invention.
- the waterproof tape 100 has a configuration in which an adhesive layer is provided on at least one surface of a base film 10 having a filler layer 20.
- the first and second adhesive layers 30 and 40 are respectively illustrated on both surfaces of the substrate layer 10, but the adhesive layer may be formed on the top surface or the substrate layer of the filler layer 20 if necessary. 10) can be formed only in the lower portion.
- the waterproof tape 100 may be formed to have a thickness of, for example, 10 to 300 ⁇ m so as to easily secure adhesion to the adherend.
- a thickness of the tape 100 it is easy to apply in assembling the vehicle battery assembly, and it is possible to improve adhesion and realize a good waterproof function.
- the base layer 10 is a layer serving as the base of the tape 100, and is used for fixing electronic and mechanical parts in an automobile battery assembly, and thus, preferably made of polyethylene terephthalate (hereinafter referred to as PET).
- PET polyethylene terephthalate
- the present invention is not limited thereto.
- the base layer 10 may be manufactured by applying graphite or a conductive fabric having excellent heat resistance and thermal conductivity in order to add heat dissipation and conductive functions.
- a primer applied to the base layer 10 may be, for example, a urethane-based, etc., but the present invention is not limited thereto.
- the PET has the advantage of ensuring the workability that can be easily reassembled after removing the tape in the event of a defect due to the process assembly error on the adhesive layer side if necessary.
- the thickness of the substrate layer 10 may be, for example, 20 to 40 ⁇ m.
- the thickness of the base layer 10 may be about 23 ⁇ m, and when the total thickness of the tape 100 exceeds 250 ⁇ m, for example, the total thickness When the thickness of the substrate layer 10 is about 300 ⁇ m, the thickness may be about 38 ⁇ m.
- the thickness of the base layer 10 is less than 20 ⁇ m may cause a problem that the heat resistance of the tape 100 is reduced and the fabric shrinks, if the thickness of the base layer 10 exceeds 40 ⁇ m filler layer ( 20), since the first and second adhesive layers 30 and 40 should be formed relatively thin, a problem may occur that the impact resistance and the adhesiveness of the tape 100 are lowered.
- the thickness of the base material layer of the tape of this invention is not necessarily limited to said numerical value.
- the base layer 10 when the tape 100 is used for light shielding, the base layer 10 may be colored black. When the tape 100 is used for light reflection, the base layer 10 may be colored white. As described above, when the base layer 10 is colored, adhesion to the first and second adhesive layers 30 and 40 disposed on the top and bottom surfaces of the base layer 10 may be improved.
- the black colorant may include at least one of carbon black or iron sulfide, which may implement black.
- the carbon black may be a urethane-based resin as a binder.
- the urethane-based resin has properties of stable physical properties and excellent adhesion to the acrylic adhesive layer.
- the black colorant may be prepared by mixing some of the various materials according to color and physical properties if necessary, and the black colorant of the present invention is not limited to the above-mentioned characteristic components or contents.
- the filler layer 20 is formed on the upper surface of the base layer 10.
- the thickness of the filler layer 20 depends on the total thickness of the tape 100, and may be, for example, 60 to 80 ⁇ m.
- the surface of the filler layer 20 may be colored black if necessary.
- the black colorant may include at least one of carbon black or iron sulfide.
- the filler layer 20 includes PE Since the form is not used, this problem does not occur.
- the filler layer 20 may be formed by applying a paste including an acrylic binder and an impact resistant filler to an upper surface of the base layer 10.
- the acrylic binder may be made of acrylonitrile, for example, but the present invention is not limited thereto.
- the filler layer 20 may further include additives such as a cross linker and a tackifer if necessary.
- the additive may be added in an amount of 0.1 to 30 parts by weight based on 100 parts by weight of the acrylic binder, but the present invention is not limited thereto.
- the filler layer 20 may be changed in impact resistance and density according to the content of the impact resistant filler contained in the acrylic binder.
- the impact resistant filler may include 5 to 60 parts by weight based on 100 parts by weight of the acrylic binder.
- the impact filler is an impurity
- the amount exceeds 60 parts by weight with respect to 100 parts by weight of the acrylic binder the bonding of the acrylic binder becomes weak, so that the paste may be cracked and the coating may not be performed.
- the content of the impact filler is less than 5 parts by weight based on 100 parts by weight of the acrylic binder, a problem may occur in that impact resistance and repulsion resistance are reduced.
- the impact resistant filler includes a plurality of low-density hollow fine particles 21.
- the hollow fine particles 21 may have a proper cushioning feeling and provide excellent impact resistance. Therefore, even if a certain level of vibration or shock is applied to the car battery, the vibration or impact force can be absorbed to prevent damage to the adherend.
- the hollow particles 21 are fine particles having a hollow portion formed therein and may be manufactured in various forms in various ways. Preferred embodiments are described below.
- the hollow fine particles 21 may include a liquid hydrocarbon and a first coating film having a hollow portion disposed on the outer surface of the liquid hydrocarbon with a nucleating agent.
- the liquid hydrocarbon serves to form the first coating film and is then removed in a polymerization process to be described later.
- the liquid hydrocarbon includes, for example, 1 to 10 parts by weight of 2-methyl butane and 1 to 10 parts by weight of 2-methyl propane based on 100 parts by weight of the hollow fine particles 21. can do.
- the internal expansion is insufficient during the production of the hollow fine particles 21 may cause a problem that the impact resistance of the hollow fine particles 21 is lowered.
- the content of the 2-methylbutane exceeds 10 parts by weight, the hollow particles 21 are over-expanded when the hollow particles 21 are not formed in a uniform form, the uniformity is lowered and overall physical properties may decrease. .
- the content of the 2-methyl propane is less than 1 part by weight, the internal expansion is insufficient when manufacturing the hollow fine particles 21 may cause a problem that the impact resistance of the hollow fine particles 21 is lowered.
- the content of the 2-methylpropane exceeds 10 parts by weight, the hollow particles 21 are over-expanded when the hollow particles 21 are not formed in a uniform form, the uniformity is lowered and overall physical properties may decrease. .
- the first coating layer may include a thermoplastic material including a monomer.
- the thermoplastic material may include 15 to 40 parts by weight based on 100 parts by weight of the total hollow particles 21, the thermoplastic material may include a copolymer of acrylonitrile and other acrylics, However, the thermoplastic material of the present invention is not limited thereto.
- the other acrylics may include phosphate methacrylate, alkali strippable polyester acrylate, and the like.
- thermoplastic material when the content of the thermoplastic material is less than 15 parts by weight, a problem may occur that the coating is not smoothly performed due to the influence on the crosslinking density. In addition, when the content of the thermoplastic material exceeds 40 parts by weight may affect the content of the impact filler to reduce the impact resistance and reliability may occur.
- the first coating film provides elasticity and restoring force to the tape 100, and provides impact resistance to provide resistance to mechanical warping. For example, even if a load of about 0.7 MPa is repeatedly applied to the tape 100, damage does not occur due to the elasticity and the restoring force of the first coating layer.
- the hollow fine particles 21 may further include a second coating film disposed around the first coating film if necessary.
- the second coating layer may include 50 to 80 parts by weight of calcium carbonate based on 100 parts by weight of the hollow fine particles 21.
- the second coating film may provide an effect of further improving the impact resistance of the hollow fine particles 21 by improving the scattering property of the liquid hydrocarbon and improving the dispersibility in the resin of the first coating film.
- the second coating film may increase the specific gravity of the hollow fine particles 21 while preventing the hollow particles 21 from agglomerating in the impact resistant filler and may serve to improve the mixing property.
- the workability when the content of the calcium carbonate is less than 50 parts by weight, the workability may be reduced due to the scattering of the impact filler, and when the content of the calcium carbonate is more than 80 parts by weight, the impact resistance may be lowered. have.
- the diameter of the hollow particles 21 of the present embodiment may be 10 to 50 ⁇ m, of which the internal through holes occupied by the liquid hydrocarbon in the process of manufacturing the hollow particles 21 occupy more than 95%, the first and The thickness of the second coating film may be 1 ⁇ m or less as a whole. This is because the diameter of the hollow fine particles 21 can ensure the uniformity of the product within the above range to finely adjust the roughness to ensure the step compensation of the product and the stability of the adhesive force, the present invention is not limited thereto.
- the filler layer 20 uses hollow particles 21 having a uniform diameter as described above, since the overall roughness is good and it is expanded like a sponge, the filler layer 20 can be filled well even in the non-uniform roughness of the injection molding, thereby ensuring adhesion and reliability. .
- the first and second adhesive layers 30 and 40 are formed on the upper surface of the filler layer 20 and the lower surface of the base layer 10, respectively.
- the first and second adhesive layers 30 and 40 may be preferably formed of an acrylic pressure-sensitive adhesive, but the present invention is not limited thereto.
- the first and second adhesive layers 30 and 40 may adjust the contents of e-EHA, CHMA, and nBA in order to realize excellent waterproofness, adhesive force, and reliability during polymerization of the acrylic adhesive.
- the first and second adhesive layers 30 and 40 may have different adhesive strengths to the adherend.
- the first adhesive layer 30 may be formed to have a different thickness such that the first adhesive layer 30 may be formed to be about 10 ⁇ m thicker than the second adhesive layer 40 formed between the base layer 10 and the release layer 50. can do.
- the adhesive strength increases, so that the thickness of the first or second adhesive layers 30 and 40 increases, as well as a constant buffering property of the adhesive layer itself. Can provide. If the thickness of the first or second pressure-sensitive adhesive layer (30, 40) is too thin, the adhesiveness is lowered, if the thickness of the first or second pressure-sensitive adhesive layer (30, 40) is too thick will affect the punching die during punching Can be.
- first and second adhesive layers 30 and 40 may further control the softness of the first and second adhesive layers 30 and 40 by adjusting the crosslinking density to further improve impact resistance and provide a step compensation effect according to the laminated structure.
- the crosslinking density can be adjusted by adjusting the type and content of the curing agent.
- a release layer 50 may be formed on the bottom surface of the second adhesive layer 40.
- the release layer 50 is to prevent foreign matters from getting stuck or broken when storing or transporting the finished tape 100.
- the release layer 50 may be a product in which a PE film is bonded to paper and silicon is released on the outer surface of the PE film, but the present invention is not limited thereto. Since acryl and silicone are not bonded to each other and thus are acrylic adhesives, a release film-treated silicone may be used.
- the release layer 50 may be a product that release-treated the silicone in glassine, PET products.
- the thickness of the paper may be 70 to 80 ⁇ m
- the thickness of the PE film may be used in each of 30 to 40 ⁇ m on both sides.
- the release treatment of the silicon may be coated with a thin film of 1 ⁇ m or less.
- the difference between the release force and the transfer rate of the release layer 50 may occur according to the type of silicon used, and in general, the release layer 50 uses a transfer rate of 90% or more.
- the transition rate indicates a value at which the silicon crosses to the acrylic side, and the lower the change rate, the smaller the change in physical properties.
- Comparative Example 1 is a double-sided tape having an acrylic-foam structure having a total thickness of 200 ⁇ m
- Comparative Examples 2 to 4 are double-sided tapes of a product having a PE (polyethylene) -foam structure, each having a total thickness of 250 / 200/200 ⁇ m
- Examples 1 to 3 are double-sided tapes having a filler layer and having a total thickness of 200/250/300 ⁇ m, respectively.
- Example 1 the thicknesses of the first and second adhesive layers were 60 ⁇ m, and the thickness of the filler layer was 60 ⁇ m, and in Example 2, the thickness of the first and second adhesive layers was 70 ⁇ m. In addition, the thickness of the filler layer was 70 ⁇ m. In Example 3, the thickness of the first and second adhesive layers was 90 ⁇ m, and the thickness of the filler layer was 80 ⁇ m. In Examples 1 to 3, the content of the impact filler in the filler layer was 35 parts by weight based on 100 parts by weight of the acrylic binder.
- Examples 1 to 3 will be collectively described as 'Examples' when necessary, such as characteristics not related to the total thickness.
- Adhesion test also known as ASTM D 3330 test, attached to the SUS plate, PC plate, and glass, the double-sided tapes of Comparative Examples and Examples were attached by reciprocating once with a 2 kg rubber pressing roller at a speed of 300 mm / min. After leaving at room temperature for a minute, the force (gf / 25mm) was measured when the double-sided tape peeled from the adherend.
- the upper and lower surfaces of the measurement results similarly have Examples 1 to 3 having a similar or relatively high force value compared to Comparative Examples 1 to 4. Therefore, it can be seen that the double-sided tape having the filler layer of the present embodiment has a similar or better adhesion than the double-sided tape having the acrylic foam or the PE foam (Comparative Examples 1 to 4).
- an adhesive should be additionally used to reduce such a difference in adhesiveness, and the use of such adhesive prevents rework of separating and reassembling the double-sided tape from the adherend if necessary, as well as raising the cost and manufacturing. This can lead to a number of problems such as complicating the process.
- Impact resistance test is a measure of the restoring force according to the pressure applied to the product.
- the thickness change according to the pressure applied to the product is smaller than that of the comparative examples, and the compression rate according to the pressure applied to the product may be confirmed to be low.
- the unit of compression thickness is ⁇ ⁇
- the unit of compression rate is%.
- Conventional products using PE-foam in impact resistance experiments used only Comparative Examples 2 and 3.
- the impact-resistant filler composed of hollow particles of the filler layer serves as a spring to improve impact resistance with high elasticity and high-density properties, and it can be seen that it has a fast recovery force when pressure is applied.
- the embodiments can be expected to improve the impact resistance more than 300% on average in the comparative examples. Therefore, the embodiments have a compression ratio of about 50% compared to the comparative examples, and have excellent repulsion resistance so that the impact on the ITO sensor can be suppressed even if the thickness is not increased. For example, even if manufactured to a thickness of 200 to 250 ⁇ m it can be seen that the equivalent or more impact resistance can be implemented.
- the impact resistance of the tape may cause a significant difference in the waterproofness of the adherend due to the crack or lifting. That is, in the case of a tape made of the same thickness, the tape of the comparative example and the embodiment is significantly different in impact resistance.
- IP IP_Ingress Protection rating
- the first number x is divided into 0 ⁇ 6 class for dustproof function
- the second number is divided into 0 ⁇ 9K class for waterproof function. The higher the number, the better the performance.
- the tape according to the embodiments of the present invention tends to extrude the air present at the bonding interface by concentrating the pressure at the bonding portion by the filler layer, even when joining rigid bodies, water does not create a gap in which water penetrates. Excellent adhesion can be achieved, thereby improving the water resistance.
- the step compensation is superior to the comparative example in the thickness direction of the tape by the filler layer, which can provide a great advantage in waterproof.
- the conventional waterproof tape is made into a hole by putting a foaming agent in the PE resin during manufacture, it is a so-called open cell (open cell) structure having a cushioning feeling by this hole.
- This has a problem that the thickness variation is 20 to 30 ⁇ m large and the surface is not uniform.
- the waterproof tape 100 does not use such PE-foam and has a so-called closed cell structure using an impact filler layer. Therefore, in the present embodiment, since the thickness is controlled by the coating compared to the double-sided tape having a conventional open cell structure, it can have a uniform thickness as a whole, and the filler layer is formed by the coating process, it is easy to control the thickness is excellent It can have productivity and wetting. In the case of conventional PE-foam, it is difficult to have a uniform thickness scattering value.
- the tensile strength of the adhesive layer and the filler layer is about 2 kgf / mm 2, and may have physical properties of 30 kgf / mm 2 or less, depending on the tensile strength of the base layer PET.
- the waterproof tape of the present embodiment can easily adhere to the adherend, can effectively prevent the ingress of water from the adhesion gap, and has excellent waterproofness. Therefore, not only can it be thinned, but also it can be effectively used for the assembly of the automotive battery assembly which requires strict watertightness.
- FIG. 4 is a flowchart illustrating a method of manufacturing a waterproof tape according to an embodiment of the present invention.
- the substrate layer 10 is prepared (S1).
- the base layer 10 may be colored in black if necessary.
- the black colorant may be used at least one of carbon black or iron sulfide.
- the carbon black or iron sulfide is preferably used well mixed to prevent a portion of the base layer 10 is agglomerated and colored.
- the carbon black or iron sulfide is preferably stirred sufficiently at 300 rpm or less for 10 to 30 minutes in order not to affect uniform stirring and physical properties, but the present invention is not limited thereto.
- a paste including an impact filler having an acrylic binder and a plurality of hollow fine particles 21 is coated on the top surface of the base layer 10 to form a filler layer 20 (S2).
- the impact resistant filler may include 5 to 60 parts by weight based on 100 parts by weight of the acrylic binder.
- an additive including 0.1 to 30 parts by weight of a crosslinking agent may be further included.
- the filler layer 20 may be colored black if necessary.
- FIG. 5 is a flowchart illustrating a method of manufacturing an impact resistant filler of a filler layer in a waterproof tape according to an exemplary embodiment of the present invention.
- an embodiment of a method of manufacturing hollow fine particles is as follows.
- liquid hydrocarbon 2 to 20 parts by weight of liquid hydrocarbon and a dispersant are added to 0.1 to 1 parts by weight of water based on 100 parts by weight of the total fine particles 1.
- the liquid hydrocarbon may include, for example, 1 to 10 parts by weight of 2-methylbutane and 1 to 10 parts by weight of 2-methylpropane.
- the dispersant may also be an appropriate amount of surfactant. Thereafter, using the surfactant to disperse the liquid hydrocarbon that is not mixed in water to a predetermined size to prepare a hydrogen dispersion (S21).
- additives such as a crosslinking agent may be further added.
- Size limitation of the additive can be adjusted to specific gravity. When the filler layer 20 has a larger size of the filler and the pore layer of the hollow fine particles becomes larger, the specific gravity is lowered. When the size of the filler is smaller than the reference, the size of the hollow layer of the hollow fine particle becomes smaller and the specific gravity becomes larger.
- thermoplastic material including a monomer is introduced into the dispersed liquid hydrocarbon solution, and a first coating film having a band shape is formed to surround the liquid hydrocarbon by using the dispersed liquid hydrocarbon as a nucleating agent to prepare particulate crystals. S22).
- the monomer may include a copolymer of acrylonitrile and other acrylics of 15 to 40 parts by weight based on 100 parts by weight of the total hollow particles.
- the fine particle crystals on which the first coating layer is formed are polymerized (S23).
- the polymerization may be performed by adding 0.1 to 5.0 parts by weight of a polymerization initiator in the liquid hydrocarbon, and heating the particulate crystals for 10 to 60 minutes at 140 to 150 ° C. to remove the hydrocarbons, thereby unexpanded micro spares. to provide a microsphere (S24).
- the polymerization may be carried out through a method of separating the first coating film with a specific gravity difference in the liquid hydrocarbon, if necessary.
- the undeveloped microspheres are heated, for example, for 10 to 60 minutes to expand the diameter of the first coating film, thereby expanding microspheres having an expanded volume compared to the initially provided undeveloped microspares.
- the undeveloped microspare may be heated at, for example, 110 to 190 ° C, more preferably, 130 to 170 ° C, but the present invention is not limited thereto. If the heating temperature is less than 110 °C may not have enough expansion of the micro spare may have a problem that the resilience and chemical stability of the hollow fine particles is reduced. In addition, when the heating temperature exceeds 190 °C may be a problem that it is difficult to implement the characteristics of the product due to the low repulsion resistance and weak chemical resistance and storage stability (storage stability).
- the polymerization is performed to remove the liquid hydrocarbon and then expand to form a pore layer, and to form a micro spare having a hollow portion and an expanded volume to have an expanded micro spare. It is to prepare a filler.
- a second coating film including 50 to 80 parts by weight of calcium carbonate based on 100 parts by weight of the total hollow particles may be further disposed around the first coating film of the developed micro spare (S26).
- the second coating layer is, for example, the powder of the reactor 200 through the expanded micro spares M and calcium carbonate C through, for example, injection portions 221 and 224 in the form of piping.
- the second coating layer is, for example, the powder of the reactor 200 through the expanded micro spares M and calcium carbonate C through, for example, injection portions 221 and 224 in the form of piping.
- the hot air of about 130 to 150 °C through the air supply unit 251 to the developed micro spare (M) and the calcium carbonate (C) in the body 210 of the reactor 200 Allow it to float.
- the calcium carbonate (C) is bumped into the periphery of the first coating film of the developed micro spare (M) to proceed to form a second coating film.
- the supply speed of the air injected into the body 210 of the reactor 200 is such that the developed micro spare (M) and the calcium carbonate (C) is properly floated inside the body 210 of the reactor 200 It can be adjusted to flow.
- a rotating shaft 231 having a propeller 231a may be installed in the main body 210 so that the received air, the developed micro spare and calcium carbonate are circulated, and the formation of the second coating layer proceeds more smoothly.
- the temperature of the air is a temperature for making the state of the first coating film soft, so that the calcium carbonate is easily embedded in the circumference thereof, but the temperature of the air is not limited thereto.
- a discharge part 241 having a valve 241a may be provided at a lower end of the main body 210 to discharge the micro spare having the second coating layer formed thereon.
- the second coating film is for suppressing aggregation and scattering of the developed microspare. And, if necessary, by comparing the amount of the thermoplastic material and the amount and weight of the plurality of the final hollow particles added previously, the density can be measured so that the density is always kept constant.
- the filler is light in the curing process and floats up to fly away.
- the filler layer 20 has a uniform size of scattering can be confirmed by extracting a random sample and measuring specific gravity.
- the filler layer 20 includes a large amount of the filler, the weight of the sample is lighter than the titration reference sample, and the inclusion of the small amount is heavier than the weight of the titration sample.
- the liquid hydrocarbon inside the filler layer may fly away at a high temperature, and there may be a risk that the fine particles of the pore layer are scattered.
- By improving the dispersibility of the first coating film of the micro spare may serve to prevent the scattering of the hollow fine particles 21 and provide an effect of improving the impact resistance of the hollow fine particles 21.
- the second coating layer may increase the specific gravity of the hollow fine particles 21 while preventing the hollow fine particles 21 from agglomerating in the impact resistant filler, and may serve to improve the mixing property.
- the second coating film may be made of 50 to 80 parts by weight of calcium carbonate (calcium carbonate) based on 100 parts by weight of the hollow fine particles 21.
- calcium carbonate calcium carbonate
- the workability may be reduced due to the scattering of the impact filler, and when the content of the calcium carbonate is more than 80 parts by weight, the impact resistance may be lowered. have.
- first and second adhesive layers 30 and 40 are formed on the upper surface of the filler layer 20 and the lower surface of the base layer 10, respectively (S3).
- the release layer 50 is formed on the lower surface of the second adhesive layer 40 (S4) to complete the waterproof tape.
Abstract
Description
Claims (15)
- 일면에 필러층을 가지는 기재층 및 점착층을 포함하는 자동차 배터리용 방수 테이프로서,상기 필러층은 아크릴 바인더 및 복수의 중공미립자를 가지는 내충격 필러를 포함하고,상기 중공미립자는, 전체 100중량부에 대하여, 15 내지 40중량부의 단량체를 포함하는 열가소성 소재로 이루어지며 중공부를 갖는 제1 코팅막을 포함하는 자동차 배터리용 방수 테이프.
- 제1항에 있어서, 상기 중공미립자는, 전체 100 중량부에 대하여, 50 내지 80중량부의 탄산칼슘(calcium carbonate)을 포함하며, 상기 제1 코팅막의 둘레에 배치된 제2 코팅막을 더 포함하는 자동차 배터리용 방수 테이프.
- 제1항에 있어서, 상기 필러층은 상기 아크릴 바인더 100중량부에 대하여 5 내지 60 중량부의 내충격 필러를 포함하는 자동차 배터리용 방수 테이프.
- 제1항에 있어서, 상기 제1 코팅막의 단량체는, 상기 중공미립자 100중량부에 대하여, 15 내지 40중량부의 아크릴로니트릴(acrylonitrile)과 메타크리레이트 인산염(Phosphate methacrylate) 및 알칼리 스트리퍼블 폴리에스터 아크릴레이트(Alkali strippable polyester acrylate) 중 적어도 하나를 포함하는 공중합체(copolymer)인 자동차 배터리용 방수 테이프.
- 제1항에 있어서, 상기 기재층은 흑색으로 착색되며, 상기 흑색 착색제는 카본블랙 또는 황화철 중 적어도 하나 이상을 포함하는 자동차 배터리용 방수 테이프.
- 제1항에 있어서, 상기 필러층은 흑색으로 착색되며, 상기 흑색 착색제는 카본블랙 또는 황화철 중 적어도 하나 이상을 포함하는 자동차 배터리용 방수 테이프.
- 기재층의 적어도 일면에 점착층을 형성하여 자동차 배터리용 방수 테이프를 제조하는 방법에 있어서,상기 기재층은 일면에 아크릴 바인더 및 복수의 중공미립자를 가지는 내충격 필러를 포함하는 페이스트를 도포하여 필러층을 형성하되,상기 중공미립자는,전체 100중량부에 대하여, 물에 2 내지 20 중량부의 액상탄화수소 및 분산제를 투입하여 수소분산체를 마련하는 단계;상기 수소분산체에 중공미립자 전체 100중량부에 대하여 15 내지 40중량부의 단량체를 투입하여 탄화수소 둘레에 제1 코팅막을 형성하여 미립자 결정체를 마련하는 단계;상기 미립자 결정체를 가열하여 상기 탄화수소를 제거하여 미전개된 마이크로스페어(unexpanded microsphere)를 형성하는 단계; 및상기 미전개된 마이크로스페어를 가열하여 상기 제1 코팅막이 팽창되도록 하여 전개된 마이크로스페어(expanded microsphere)를 마련하는 단계; 에 의해 제조되는 자동차 배터리용 방수 테이프의 제조방법.
- 제7항에 있어서, 상기 중공미립자는, 상기 전개된 마이크로스페어의 상기 제1 코팅막 둘레에 중공미립자 전체 100중량부에 대하여 50 내지 80중량부의 탄산칼슘으로 제2 코팅막을 형성하는 단계를 더 포함하여 제조되는 자동차 배터리용 방수 테이프의 제조방법.
- 제7항에 있어서, 상기 수소분산체를 마련하는 단계에서,상기 액상탄화수소는 중공미립자 전체 100중량부에 대하여 1 내지 10중량부의 2-메틸부탄과 1 내지 10중량부의 2-메틸프로판을 포함하는 자동차 배터리용 방수 테이프의 제조방법.
- 제7항에 있어서, 상기 수소분산체를 마련하는 단계에서, 상기 분산제는 계면활성제인 자동차 배터리용 방수 테이프의 제조방법.
- 제7항에 있어서, 상기 미립자 결정체를 마련하는 단계에서,상기 단량체는 중공미립자 전체 100중량부에 대하여 15 내지 40중량부의 아크로니트릴 및 기타 아크릴의 공중합체인 자동차 배터리용 방수 테이프의 제조방법.
- 제7항에 있어서, 상기 전개된 마이크로스페어를 마련하는 단계는, 상기 미전개된 마이크로스페어를 170 내지 190℃에서 가열하는 자동차 배터리용 방수 테이프의 제조방법.
- 제7항에 있어서, 상기 제2 코팅막을 형성하는 단계는,상기 전개된 마이크로스페어와 상기 탄산칼슘을 반응기에 넣고 130 내지 150℃의 온도에서 공기를 주입하여 상기 반응기 내부에 떠다니게 하는 단계; 및상기 전개된 마이크로스페어의 상기 제1 코팅막의 외벽에 상기 탄산칼슘들이 박히면서 제2 코팅막을 형성하는 단계; 를 포함하는 자동차 배터리용 방수 테이프의 제조방법.
- 제7항에 있어서, 상기 기재층을 흑색으로 착색하며, 상기 흑색 착색제는 카본블랙 또는 황화철 중 적어도 하나 이상을 포함하는 자동차 배터리용 방수 테이프의 제조방법.
- 제7항에 있어서, 상기 필러층을 흑색으로 착색하며, 상기 흑색 착색제는 카본블랙 또는 황화철 중 적어도 하나 이상을 포함하는 자동차 배터리용 방수 테이프의 제조방법.
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US15/127,343 US10293366B2 (en) | 2014-03-18 | 2015-02-25 | Waterproof tape for automobile battery and manufacturing method thereof |
CN201580014263.0A CN106133089B (zh) | 2014-03-18 | 2015-02-25 | 汽车蓄电池用防水胶带及其制备方法 |
JP2017500776A JP2017517617A (ja) | 2014-03-18 | 2015-02-25 | 自動車バッテリー用防水テープ及びその製造方法 |
US16/050,645 US20180333745A1 (en) | 2014-03-18 | 2018-07-31 | Waterproof tape having improved adhesion and manufacturing method thereof |
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KR10-2014-0031801 | 2014-03-18 | ||
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US16/050,645 Division US20180333745A1 (en) | 2014-03-18 | 2018-07-31 | Waterproof tape having improved adhesion and manufacturing method thereof |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109906258A (zh) * | 2016-10-27 | 2019-06-18 | 株式会社Lg化学 | 聚合物泡沫粘合带和包括其的压敏型触摸面板 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR0177491B1 (ko) * | 1990-03-08 | 1999-05-15 | 프랭클린 피치 | 건조 마이크로스피어의 제조 방법 및 마이크로스피어 제품 |
KR20030023416A (ko) * | 2001-09-13 | 2003-03-19 | (주)해은켐텍 | 에멀전형 점착제층을 포함하는 가열박리형 발포시트 |
KR20080072664A (ko) * | 2005-10-20 | 2008-08-06 | 마쓰모토유시세이야쿠 가부시키가이샤 | 열팽창성 미소구 및 그 제조방법 |
KR20130092112A (ko) * | 2012-02-10 | 2013-08-20 | (주)앤디포스 | 내충격성이 우수한 터치스크린 패널용 양면테이프 |
JP2013244592A (ja) * | 2012-05-24 | 2013-12-09 | Shin-Ei Grinding Wheels Mfg Co Ltd | 可撓性エポキシスポンジ砥石 |
-
2015
- 2015-02-25 WO PCT/KR2015/001824 patent/WO2015141953A1/ko active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR0177491B1 (ko) * | 1990-03-08 | 1999-05-15 | 프랭클린 피치 | 건조 마이크로스피어의 제조 방법 및 마이크로스피어 제품 |
KR20030023416A (ko) * | 2001-09-13 | 2003-03-19 | (주)해은켐텍 | 에멀전형 점착제층을 포함하는 가열박리형 발포시트 |
KR20080072664A (ko) * | 2005-10-20 | 2008-08-06 | 마쓰모토유시세이야쿠 가부시키가이샤 | 열팽창성 미소구 및 그 제조방법 |
KR20130092112A (ko) * | 2012-02-10 | 2013-08-20 | (주)앤디포스 | 내충격성이 우수한 터치스크린 패널용 양면테이프 |
JP2013244592A (ja) * | 2012-05-24 | 2013-12-09 | Shin-Ei Grinding Wheels Mfg Co Ltd | 可撓性エポキシスポンジ砥石 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109906258A (zh) * | 2016-10-27 | 2019-06-18 | 株式会社Lg化学 | 聚合物泡沫粘合带和包括其的压敏型触摸面板 |
CN109906258B (zh) * | 2016-10-27 | 2021-08-10 | 株式会社Lg化学 | 聚合物泡沫粘合带和包括其的压敏型触摸面板 |
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