JP2016069673A - Anticorrosion method for steel material and adhesive gel sheet used for the method - Google Patents
Anticorrosion method for steel material and adhesive gel sheet used for the method Download PDFInfo
- Publication number
- JP2016069673A JP2016069673A JP2014198880A JP2014198880A JP2016069673A JP 2016069673 A JP2016069673 A JP 2016069673A JP 2014198880 A JP2014198880 A JP 2014198880A JP 2014198880 A JP2014198880 A JP 2014198880A JP 2016069673 A JP2016069673 A JP 2016069673A
- Authority
- JP
- Japan
- Prior art keywords
- gel sheet
- steel material
- fiber
- steel
- adhesive gel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 53
- 239000010959 steel Substances 0.000 title claims abstract description 53
- 239000000853 adhesive Substances 0.000 title claims abstract description 51
- 230000001070 adhesive effect Effects 0.000 title claims abstract description 51
- 239000000463 material Substances 0.000 title claims abstract description 50
- 238000000034 method Methods 0.000 title claims abstract description 29
- 239000000835 fiber Substances 0.000 claims description 46
- 238000003860 storage Methods 0.000 claims description 18
- 230000007797 corrosion Effects 0.000 claims description 12
- 238000005260 corrosion Methods 0.000 claims description 12
- 239000004020 conductor Substances 0.000 claims description 9
- 239000003795 chemical substances by application Substances 0.000 claims description 8
- 238000005536 corrosion prevention Methods 0.000 claims description 6
- 239000003822 epoxy resin Substances 0.000 claims description 6
- 239000004744 fabric Substances 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 229920000647 polyepoxide Polymers 0.000 claims description 6
- 239000004952 Polyamide Substances 0.000 claims description 5
- 229920002978 Vinylon Polymers 0.000 claims description 5
- 229920006231 aramid fiber Polymers 0.000 claims description 5
- 229920002647 polyamide Polymers 0.000 claims description 5
- 229920000728 polyester Polymers 0.000 claims description 5
- 229920000098 polyolefin Polymers 0.000 claims description 5
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 4
- 239000004917 carbon fiber Substances 0.000 claims description 4
- 239000003365 glass fiber Substances 0.000 claims description 4
- 239000011159 matrix material Substances 0.000 claims description 4
- 229920000642 polymer Polymers 0.000 claims description 4
- 239000004925 Acrylic resin Substances 0.000 claims description 3
- 239000004745 nonwoven fabric Substances 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 239000002759 woven fabric Substances 0.000 claims description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims 1
- 230000002787 reinforcement Effects 0.000 claims 1
- 239000011248 coating agent Substances 0.000 description 16
- 238000000576 coating method Methods 0.000 description 16
- 238000001723 curing Methods 0.000 description 11
- 238000005259 measurement Methods 0.000 description 10
- 239000000523 sample Substances 0.000 description 8
- 238000012360 testing method Methods 0.000 description 8
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000000178 monomer Substances 0.000 description 4
- 239000003973 paint Substances 0.000 description 4
- 239000004760 aramid Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 2
- 229920002799 BoPET Polymers 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 239000012298 atmosphere Substances 0.000 description 2
- -1 bisphenol A type Chemical compound 0.000 description 2
- PXKLMJQFEQBVLD-UHFFFAOYSA-N bisphenol F Chemical compound C1=CC(O)=CC=C1CC1=CC=C(O)C=C1 PXKLMJQFEQBVLD-UHFFFAOYSA-N 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 241000282320 Panthera leo Species 0.000 description 1
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 239000011162 core material Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- BXKDSDJJOVIHMX-UHFFFAOYSA-N edrophonium chloride Chemical compound [Cl-].CC[N+](C)(C)C1=CC=CC(O)=C1 BXKDSDJJOVIHMX-UHFFFAOYSA-N 0.000 description 1
- 125000003700 epoxy group Chemical group 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 239000003273 ketjen black Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910001507 metal halide Inorganic materials 0.000 description 1
- 150000005309 metal halides Chemical class 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 229920003986 novolac Polymers 0.000 description 1
- 238000000016 photochemical curing Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229920000553 poly(phenylenevinylene) Polymers 0.000 description 1
- 229920001197 polyacetylene Polymers 0.000 description 1
- 229920000767 polyaniline Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920000128 polypyrrole Polymers 0.000 description 1
- 229920000123 polythiophene Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- KCTAWXVAICEBSD-UHFFFAOYSA-N prop-2-enoyloxy prop-2-eneperoxoate Chemical compound C=CC(=O)OOOC(=O)C=C KCTAWXVAICEBSD-UHFFFAOYSA-N 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Landscapes
- Building Environments (AREA)
- Prevention Of Electric Corrosion (AREA)
Abstract
Description
本発明は、鋼材の防食方法及び該方法に使用される粘接着性ゲルシートに関する。更に詳しくは、本発明は、粘接着性ゲルシートを鋼材に粘着させ、粘接着性ゲルシートから鋼材に防食電流を流すことで簡便に鋼材の防食を可能にする鋼材の防食方法、及びこの方法に使用される粘接着ゲルシートに関する。 The present invention relates to a method for preventing corrosion of steel materials and an adhesive gel sheet used in the method. More specifically, the present invention relates to a method for preventing corrosion of a steel material, which makes it possible to easily prevent corrosion of a steel material by allowing an adhesive gel sheet to adhere to a steel material and passing an anticorrosive current from the adhesive gel sheet to the steel material, and this method. The present invention relates to an adhesive gel sheet used in the above.
近年、橋梁、プラント、鉄骨等の鋼材の腐食による経年劣化が社会問題となっている。特に、海岸や海洋構造物において、この問題は大きくなっている。
鋼材の腐食を防止する一般的な技術として、防食塗料による塗膜で鋼材を被覆する方法が知られている。しかし、この方法は、塗装不良や、ピンホールの発生、機械的な損傷により、鋼材が部分的に露出し、露出箇所から腐食が進行するという課題があった。そのため塗膜を必要以上に厚くすることで、鋼材の露出を抑えることが行われていた。しかし、厚くするために工数や材料費が増大するという課題があった。
この課題を解決する方法として、特開平１０−１２１２７４号公報（特許文献１）では、電気防食法が提案されている。特許文献１では、鋼材上に防食塗膜と導電性塗膜をこの順で形成し、鋼材と導電性塗膜間に防食電流を流すことで、鋼材の腐食を防止できるとされている。
In recent years, aged deterioration due to corrosion of steel materials such as bridges, plants and steel frames has become a social problem. In particular, this problem is increasing on the coast and offshore structures.
As a general technique for preventing corrosion of a steel material, a method of coating the steel material with a coating film made of an anticorrosive paint is known. However, this method has a problem that the steel material is partially exposed due to poor coating, occurrence of pinholes, and mechanical damage, and corrosion proceeds from the exposed portion. Therefore, the exposure of steel materials has been suppressed by making the coating film thicker than necessary. However, there is a problem that man-hours and material costs increase due to the increase in thickness.
As a method of solving this problem, Japanese Patent Application Laid-Open No. 10-121274 (Patent Document 1) proposes an anticorrosion method. In patent document 1, it is said that corrosion prevention of a steel material can be prevented by forming an anticorrosion coating film and a conductive coating film on a steel material in this order, and passing an anticorrosion current between the steel material and the conductive coating film.
特許文献１では、導電性塗膜は、導電材を含む塗料を防食塗料上に塗布及び乾燥することにより形成することを要すため、作業性が劣るという課題があった。 In Patent Document 1, since the conductive coating film needs to be formed by applying and drying a paint containing a conductive material on the anticorrosive paint, there is a problem that workability is inferior.
本発明の発明者等は、導電性オルガノゲルを含む粘接着ゲルシートを使用することにより、防食の作業性を向上できることを見い出し、本発明に至った。
かくして本発明によれば、導電性オルガノゲルを含む粘接着ゲルシートを鋼材に粘着させ、次いで、前記粘接着ゲルシートを硬化させた後、前記鋼材に前記粘接着ゲルシートの硬化膜から防食電流を流すことからなり、前記粘接着ゲルシートの硬化膜が１０7Ω／ｃｍ2以下の表面抵抗値を有することを特徴とする鋼材の防食方法が提供される。
また、本発明によれば、上記鋼材の防食方法に使用され、導電性オルガノゲルから構成されることを特徴とする鋼材の防食用粘接着ゲルシートが提供される。
The inventors of the present invention have found that the workability of anticorrosion can be improved by using an adhesive gel sheet containing a conductive organogel, and have reached the present invention.
Thus, according to the present invention, after the adhesive gel sheet containing the conductive organogel is adhered to the steel material, and then the adhesive gel sheet is cured, the steel material is subjected to an anticorrosive current from the cured film of the adhesive gel sheet. And a cured film of the adhesive gel sheet having a surface resistance value of 10 7 Ω / cm 2 or less.
Moreover, according to this invention, it is used for the said corrosion prevention method of steel materials, and is comprised from electroconductive organogel, The adhesive gel sheet for corrosion prevention of the steel materials characterized by the above-mentioned is provided.
本発明の鋼材の防食方法及び防食用粘接着ゲルシートによれば、作業者のスキルに依存せず、作業性を向上できる。
また、以下のいずれか１つ又は組み合わせによる場合、より作業性を向上できる。
（１）防食電流が、粘接着性ゲルシートの硬化膜を陽極、鋼材を陰極として、両極間に直流電流を加えることにより、鋼材に硬化膜から流される場合
（２）導電性オルガノゲルが、（１）２３℃において、１．０×１０3〜５．０×１０4Ｐａの貯蔵弾性率及び０．０１〜２の損失係数（周波数０．０１Ｈｚ時）、１．０×１０4〜１．０×１０7Ｐａの貯蔵弾性率及び０．０１〜２の損失係数（周波数１００Ｈｚ時）を有し、かつ（２）硬化前に、０．０１〜０．１５Ｎ／ｍｍ2の粘着力、硬化後に、３Ｎ／ｍｍ2以上の接着力を有する場合
（３）粘接着ゲルシートが、物理的強度を高めるための補強層を備える場合
（４）補強層が、織布、編布、不織布及び積層布からなる群の中から選ばれる１種又は２種以上の繊維基材である場合
（５）繊維基材が、天然繊維、ポリエステル繊維、ポリアミド繊維、アラミド繊維、ビニロン繊維、カーボン繊維、ガラス繊維、ポリオレフィン繊維からなる群の中から選ばれる１種又は２種以上の繊維からなる場合
（６）導電性オルガノゲルが、導電材と、（メタ）アクリレート系樹脂からなる高分子マトリックスと、液状の硬化性エポキシ系樹脂及び硬化剤とを含む場合
According to the steel material anticorrosion method and the anticorrosive adhesive gel sheet of the present invention, workability can be improved without depending on the skill of the operator.
Moreover, workability can be further improved in the case of any one or combination of the following.
(1) When the anticorrosion current is caused to flow from the cured film to the steel material by applying a direct current between the two electrodes using the cured film of the adhesive gel sheet as the anode and the steel material as the cathode, (2) the conductive organogel is ( 1) At 23 ° C., a storage elastic modulus of 1.0 × 10 3 to 5.0 × 10 4 Pa and a loss coefficient of 0.01 to 2 (at a frequency of 0.01 Hz), 1.0 × 10 4 to 1. It has a storage elastic modulus of 0 × 10 7 Pa and a loss coefficient of 0.01 to 2 (at a frequency of 100 Hz), and (2) an adhesive strength of 0.01 to 0.15 N / mm 2 and curing before curing. Later, when having an adhesive strength of 3 N / mm 2 or more (3) When the adhesive gel sheet is provided with a reinforcing layer for increasing physical strength (4) The reinforcing layer is a woven fabric, a knitted fabric, a nonwoven fabric and a laminate When it is one or two or more types of fiber bases selected from the group consisting of cloth (5) Fiber When the substrate is composed of one or more fibers selected from the group consisting of natural fibers, polyester fibers, polyamide fibers, aramid fibers, vinylon fibers, carbon fibers, glass fibers, and polyolefin fibers (6) Conductivity When the conductive organogel contains a conductive material, a polymer matrix made of a (meth) acrylate resin, a liquid curable epoxy resin and a curing agent
以下、本発明を実施するための形態を図面に基づき説明する。
図１は、鋼材の防食用粘接着ゲルシート（単に、ゲルシートともいう）を用いて鋼材を防食している状態の実施形態を示している。この防食は、例えば、次の手順で実行できる。
まず、鋼材１の防食必要部位を清浄化する。次に、防食必要部位に防食塗料を用いて塗膜２を形成する。塗膜２上に防食用粘接着ゲルシートを粘着させることで固定する。塗膜２は、必要に応じて形成できる。塗膜２を形成しない場合は、ゲルシートは直接鋼板１上に粘着される。ゲルシートは粘着により固定されているので、空気の巻き込み、シワの発生等により貼り直しの必要が生じた場合でも、容易に貼りなおすことができる。次に、ゲルシートを硬化させて接着する。次いで、ゲルシートの硬化膜３上に陽極４を設置し、陽極４と鋼板１間に電流を流すための電流流路５と電源６とを接続し、次いで硬化膜３と鋼材１間に防食電流を流すことで、防食を行い得る。電流流路５は、直接硬化膜３と接続してもよく、この場合、陽極４を設ける必要はない。
ゲルシートは、ゲル状の形態、所定の粘着力及び接着力を有していさえすれば、その構成成分は特に限定されない。
Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.
FIG. 1 shows an embodiment in a state where a steel material is anticorrosive using an adhesive gel sheet for corrosion protection of steel material (also simply referred to as a gel sheet). This anticorrosion can be performed by the following procedure, for example.
First, the site | part which needs anticorrosion of the steel material 1 is cleaned. Next, the coating film 2 is formed using an anticorrosion paint at a site requiring anticorrosion. It fixes by making the adhesive gel sheet for anticorrosion adhere on the coating film 2. FIG. The coating film 2 can be formed as needed. When the coating film 2 is not formed, the gel sheet is directly adhered onto the steel plate 1. Since the gel sheet is fixed by adhesion, it can be easily reapplied even if it is necessary to reapply due to air entrainment, generation of wrinkles, or the like. Next, the gel sheet is cured and bonded. Next, an anode 4 is set on the cured film 3 of the gel sheet, a current flow path 5 for supplying current between the anode 4 and the steel plate 1 and a power source 6 are connected, and then an anticorrosion current is applied between the cured film 3 and the steel material 1. The anticorrosion can be performed by flowing. The current flow path 5 may be directly connected to the cured film 3, and in this case, it is not necessary to provide the anode 4.
The gel sheet is not particularly limited as long as it has a gel-like form, predetermined adhesive strength and adhesive strength.
ゲルシートの厚さは、ゲルシート粘着時にシートの形状を維持し得る厚さであれば特に限定されない。例えば、０．１〜５.０ ｍｍである。
本明細書において、ゲル状の形態とは、例えば、２３℃で測定した貯蔵弾性率及び損失係数の値において、周波数０．０１Ｈｚにおける貯蔵弾性率が１．０×１０3〜５．０×１０4Ｐａ、損失係数が０．０１〜２であり、周波数１００Ｈｚにおける貯蔵弾性率が１．０×１０4〜１．０×１０7Ｐａ、損失係数が０．０１〜２の物性で表される形態が挙げられる。
The thickness of a gel sheet will not be specifically limited if it is the thickness which can maintain the shape of a sheet | seat at the time of gel sheet adhesion. For example, it is 0.1 to 5.0 mm.
In the present specification, the gel-like form means that the storage elastic modulus at a frequency of 0.01 Hz is 1.0 × 10 3 to 5.0 × 10 5 in the value of the storage elastic modulus and loss coefficient measured at 23 ° C., for example. 4 Pa, loss factor is 0.01 to 2, storage modulus at a frequency of 100 Hz is 1.0 × 10 4 to 1.0 × 10 7 Pa, loss factor is represented by physical properties of 0.01 to 2 A form is mentioned.
上記粘弾特性は、ゲルシートが鋼材又は塗膜表面の凹凸に入り込んで接着する密着性の評価であり、被着体へのゲルシートの接触面積や、ゲルシート自身の変形性を示す。また、粘弾特性は、ゲルシートの凝集力、すなわち耐破壊強さの評価値ともなる。
粘弾特性は、貯蔵弾性率と損失係数によって表すことができる。低周波数域（０．０１Ｈｚ）における粘弾特性は、低速での微小な変形過程におけるゲルシートの濡れ粘着力、クリープ挙動（塑性変形）等の指標となる。例えば、被着体に貼り付けた場合、０．０１Ｈｚにおける貯蔵弾性率が高過ぎたり、損失係数が低すぎたりすると、ゲルシートは良好な変形ができず、密着性が低下することがある。また、逆に、貯蔵弾性率が低過ぎたり、損失係数が高過ぎたりすると、ゲルシートの凝集性が低下し、形状保持性が低下することがある。
The viscoelasticity property is an evaluation of adhesion that the gel sheet enters and adheres to the unevenness of the steel material or the coating film surface, and indicates the contact area of the gel sheet to the adherend and the deformability of the gel sheet itself. The viscoelastic property is also an evaluation value of the cohesive force of the gel sheet, that is, the fracture strength.
Viscoelastic properties can be expressed by storage modulus and loss factor. The viscoelastic property in the low frequency range (0.01 Hz) is an index such as the wet adhesive force and creep behavior (plastic deformation) of the gel sheet in the minute deformation process at low speed. For example, when pasted on an adherend, if the storage elastic modulus at 0.01 Hz is too high or the loss factor is too low, the gel sheet cannot be satisfactorily deformed and adhesion may be lowered. Conversely, if the storage elastic modulus is too low or the loss factor is too high, the cohesiveness of the gel sheet may be reduced, and the shape retention may be reduced.
高周波数域（１００Ｈｚ）における粘弾特性は、高速の変形過程におけるゲルシートの被着体への追従性、剥離挙動等の指標となる。例えば、被着体に貼り付けた場合、１００Ｈｚにおける貯蔵弾性率が高過ぎたり、損失係数が低過ぎたりすると、ゲルシートが車両等の通過による振動等に追従できず剥離が生じやすくなる。また、逆に、貯蔵弾性率が低過ぎたり、損失係数が高過ぎたりすると、被着体への貼り直しがしづらいことがある。
なお、周波数０．０１Ｈｚにおける貯蔵弾性率は１．０×１０3〜５．０×１０4Ｐａ、損失係数は０．０１〜２であり、周波数１００Ｈｚにおける貯蔵弾性率は１．０×１０4〜１．０×１０7Ｐａ、損失係数は０．０１〜２であることがより好ましい。
The viscoelastic property in the high frequency range (100 Hz) is an index such as the followability of the gel sheet to the adherend and the peeling behavior in a high-speed deformation process. For example, when pasted on an adherend, if the storage elastic modulus at 100 Hz is too high or the loss coefficient is too low, the gel sheet cannot follow vibrations caused by passing through a vehicle or the like, and peeling easily occurs. Conversely, if the storage elastic modulus is too low or the loss coefficient is too high, it may be difficult to reattach the adherend.
The storage elastic modulus at a frequency of 0.01 Hz is 1.0 × 10 3 to 5.0 × 10 4 Pa, the loss coefficient is 0.01 to 2, and the storage elastic modulus at a frequency of 100 Hz is 1.0 × 10 4. It is more preferable that it is -1.0 * 10 < 7 > Pa and a loss coefficient is 0.01-2.
所定の粘着力とは、ゲルシートの鋼材又は塗膜への粘着状態を維持し得る力である。粘着力は０．０１〜０．１５Ｎ／ｍｍ2であることが好ましい。０．０１Ｎ／ｍｍ2未満の場合、被着体に対する粘着力が十分でないことがある。０．１５Ｎ／ｍｍ2より高い場合、粘着性が強すぎて作業性が低下することがある。より好ましい粘着力は、０．０５〜０．１５Ｎ／ｍｍ2である。
所定の接着力とは、ゲルシートの硬化後において、ゲルシートの鋼材又は塗膜への接着状態を維持し得る力である。接着力は、引張せん断接着強度で表すと、３Ｎ／ｍｍ2以上であることが好ましい。３Ｎ／ｍｍ2未満であると鋼材への接着性が低下し、耐荷力が不足することがある。より好ましい接着力は、５〜２０Ｎ／ｍｍ2である。
The predetermined adhesive force is a force capable of maintaining the adhesive state of the gel sheet to the steel material or the coating film. The adhesive strength is preferably 0.01 to 0.15 N / mm 2 . If it is less than 0.01 N / mm 2, the adhesive strength to the adherend may not be sufficient. When it is higher than 0.15 N / mm 2 , the adhesiveness is too strong and workability may be lowered. A more preferable adhesive force is 0.05 to 0.15 N / mm 2 .
The predetermined adhesive force is a force capable of maintaining the adhesive state of the gel sheet to the steel material or the coating film after the gel sheet is cured. The adhesive force is preferably 3 N / mm 2 or more in terms of tensile shear adhesive strength. If it is less than 3 N / mm 2 , the adhesion to the steel material may be reduced, and the load bearing capacity may be insufficient. A more preferable adhesive force is 5 to 20 N / mm 2 .
オルガノゲルは、導電材と、（メタ）アクリレート系樹脂からなる高分子マトリックスと、液状の硬化性エポキシ系樹脂及び硬化剤とを含むことが好ましい。
導電材としては、ポリアニリン、ポリピロール、ポリチオフェン、ポリ−ｐ−フェニレンビニレン、ポリアセチレン等の導電性樹脂、カーボンブラック、黄銅、アルミニウム、酸化亜鉛、グラファイト等が挙げられる。導電材は、粉末状、フレーク状、繊維状の形状を有していてもよい。導電材は、ゲルシートの硬化膜が１０7Ω／ｃｍ2以下の表面抵抗値を示すのに必要な量で含有されていることが好ましい。導電材は、例えば、ゲルシート中に５〜５０質量％含まれていること好ましい。
The organogel preferably includes a conductive material, a polymer matrix made of a (meth) acrylate resin, a liquid curable epoxy resin, and a curing agent.
Examples of the conductive material include conductive resins such as polyaniline, polypyrrole, polythiophene, poly-p-phenylene vinylene, and polyacetylene, carbon black, brass, aluminum, zinc oxide, and graphite. The conductive material may have a powdery, flaky, or fibrous shape. The conductive material is preferably contained in an amount necessary for the cured film of the gel sheet to exhibit a surface resistance value of 10 7 Ω / cm 2 or less. It is preferable that 5-50 mass% of conductive materials are contained in the gel sheet, for example.
高分子マトリックスは、例えば、（メタ）アクリレート系の単官能単量体と多官能単量体とを共重合させることで得ることができる。単量体は、エポキシ基を含んでいることが好ましい。
液状の硬化性エポキシ系樹脂は、常温（約２３℃±２℃）で液体の樹脂である。例えば、ビスフェノールＡ型、ビスフェノールＦ型、ノボラック樹脂型等のエポキシ樹脂が挙げられる。
The polymer matrix can be obtained, for example, by copolymerizing a (meth) acrylate monofunctional monomer and a polyfunctional monomer. It is preferable that the monomer contains an epoxy group.
The liquid curable epoxy resin is a resin that is liquid at room temperature (about 23 ° C. ± 2 ° C.). For example, epoxy resins such as bisphenol A type, bisphenol F type, and novolak resin type can be used.
硬化剤は、特に限定されず、熱又は光硬化剤を使用できる。熱硬化剤を使用する場合は、ゲルシートの硬化は加熱により、光硬化剤を使用する場合は、ゲルシートの硬化は光の照射により行われる。ゲルシートへの熱又は光の付与は、コンクリート構造物へのゲルシートの粘着後に行ってもよく、粘着前に行ってもよい。
ゲルシートは、連続繊維シートを備えていていてもよい。連続繊維シートを備えることで、ゲルシートの物理的強度を高めることができる。
連続繊維シートは、例えば、織布、編布、不織布及び積層布からなる群の中から選ばれる１種又は２種以上の繊維基材からなるシートとすることができる。また、繊維基材は、天然繊維、ポリエステル繊維、ポリアミド繊維、アラミド繊維、ビニロン繊維、カーボン繊維、ガラス繊維、ポリオレフィン繊維からなる群の中から選ばれる１種又は２種以上の繊維からなっていてもよい。これらの中でも、ポリエステル繊維、ポリアミド繊維、アラミド繊維、ビニロン繊維、及びポリオレフィン繊維は、軽くて強度に優れることから好ましい。
The curing agent is not particularly limited, and a heat or light curing agent can be used. When a thermosetting agent is used, the gel sheet is cured by heating, and when a photocuring agent is used, the gel sheet is cured by light irradiation. Application of heat or light to the gel sheet may be performed after the gel sheet is adhered to the concrete structure, or may be performed before the adhesion.
The gel sheet may include a continuous fiber sheet. By providing the continuous fiber sheet, the physical strength of the gel sheet can be increased.
A continuous fiber sheet can be made into the sheet | seat which consists of 1 type, or 2 or more types of fiber base materials chosen from the group which consists of a woven fabric, a knitted fabric, a nonwoven fabric, and a laminated fabric, for example. The fiber base material is composed of one or more fibers selected from the group consisting of natural fibers, polyester fibers, polyamide fibers, aramid fibers, vinylon fibers, carbon fibers, glass fibers, and polyolefin fibers. Also good. Among these, polyester fiber, polyamide fiber, aramid fiber, vinylon fiber, and polyolefin fiber are preferable because they are light and excellent in strength.
上記繊維は、混紡されていてもよいし、縦糸や横糸に使い分けられていてもよいし、多層に積層されていてもよい。
連続繊維シートは、ゲルシートのどの部位に位置していてもよい。例えば、ゲルシートの鋼材側の表面、反対面に位置していてもよく、ゲルシート内部に位置していてもよい。この内、ゲルシート内部に位置することが、ゲルシートと連続繊維シートとの一体性をより向上できるので好ましい。
なお、ゲルシートは、使用時まで、一対の剥離フィルムでその表面を保護されていてもよい。また、ゲルシートの片面に基材（例えば、合成樹脂フィルム）を備え、他方面に剥離フィルムを備えていてもよい。更に、連続繊維シートは、基材に接着させてもよい。
The fibers may be blended, used for warp or weft, or laminated in multiple layers.
The continuous fiber sheet may be located in any part of the gel sheet. For example, it may be located on the surface of the gel sheet on the steel material side, the opposite surface, or may be located inside the gel sheet. Among these, it is preferable to be located inside the gel sheet because the integrity of the gel sheet and the continuous fiber sheet can be further improved.
The surface of the gel sheet may be protected with a pair of release films until use. Moreover, the base material (for example, synthetic resin film) may be provided on one side of the gel sheet, and the release film may be provided on the other side. Furthermore, the continuous fiber sheet may be bonded to the base material.
ゲルシートの製造例を下記する。
まず、以下の成分を均一になるまで撹拌混合し、粘接着剤組成物を得る。
A production example of the gel sheet will be described below.
First, the following components are stirred and mixed until uniform to obtain an adhesive composition.
アクリレートモノマー（Ｐ２Ｈ−Ａ、共栄社化学社製） ４．５質量部
エポキシアクリレートオリゴマー（ＳＰ１５０９、昭和電工社製） １０．５質量部
光重合開始剤（イルガキュアＯＸＥ−０１、ＢＡＳＦ社製） ０．３質量部
液状ビスフェノールＡ型エポキシ樹脂（ｊＥＲ８２８、三菱化学社製） １００質量部
潜在型硬化剤（フジキュア７００１、Ｔ＆Ｋ ＴＯＫＡ社製） １０質量部
導電材（ケッチェンブラックＥＣＰ６００ＪＤ、ライオン社製） １６．９質量部
得られた粘接着剤組成物をシリコーンコーティングされたＰＥＴフィルム（剥離フィルム）上に芯材（連続繊維シート）としてチョップドストランドマット（日東紡社製ＭＣ-６００Ａ 目付け６００ｇ/ｃｍ2）を置き、その上から粘接着剤組成物を流し込む。その後、上から同じくシリコーンコーティングされたＰＥＴフィルムを被せて、一対のフィルム間の粘接着剤組成物の厚さが２．０ｍｍになるように、粘接着剤組成物を均一に押し広げる。次いで、メタルハライドランプからエネルギー量７５００ｍＪ/ｃｍ2の紫外線を照射することにより、厚さ２．０ｍｍのゲルシートを得ることができる。
Acrylate monomer (P2H-A, manufactured by Kyoeisha Chemical Co., Ltd.) 4.5 parts by mass Epoxy acrylate oligomer (SP1509, manufactured by Showa Denko) 10.5 parts by mass Photopolymerization initiator (Irgacure OX-01, manufactured by BASF) 0.3 Mass parts Liquid bisphenol A type epoxy resin (jER828, manufactured by Mitsubishi Chemical Corporation) 100 parts by mass Latent type curing agent (Fujicure 7001, manufactured by T & K TOKA) 10 parts by mass Conductive material (Ketjen Black ECP600JD, manufactured by Lion) 16.9 Part by mass A chopped strand mat (MC-600A weight per unit area: 600 g / cm 2 ) manufactured by Nittobo Co., Ltd. is used as a core material (continuous fiber sheet) on a silicone-coated PET film (release film). Place the adhesive composition on top of it. Thereafter, the same silicone-coated PET film is covered from above, and the adhesive composition is evenly spread so that the thickness of the adhesive composition between the pair of films becomes 2.0 mm. Subsequently, a gel sheet having a thickness of 2.0 mm can be obtained by irradiating ultraviolet rays having an energy amount of 7500 mJ / cm 2 from a metal halide lamp.
このゲルシートは、硬化前において、粘着力が０．１４８Ｎ／ｍｍ2、周波数０．０１Ｈｚにおける貯蔵弾性率が７３３０Ｐａ及び損失係数が０．３８、周波数１００Ｈｚにおける貯蔵弾性率が１．９２×１０6Ｐａ及び損失係数が０．９０である。また、硬化後において、引張せん断接着強さが８．２８Ｎ／ｍｍ2、硬化物の表面抵抗値が１．０×１０5Ω／ｃｍ2である。なお、これら物性の測定方法を下記する。 This gel sheet has an adhesive strength of 0.148 N / mm 2 , a storage elastic modulus of 7330 Pa at a frequency of 0.01 Hz, a loss factor of 0.38, and a storage elastic modulus of 1.92 × 10 6 Pa at a frequency of 100 Hz before curing. And the loss factor is 0.90. Further, after curing, the tensile shear bond strength is 8.28 N / mm 2 , and the surface resistance value of the cured product is 1.0 × 10 5 Ω / cm 2 . In addition, the measuring method of these physical properties is described below.
（粘着力測定：プローブタック試験）
ゲルシートを３×３ｃｍに切断し、両面テープ（スリオンテック社製Ｎｏ.５４８６）で固定したＳＵＳ板に、測定するためのゲルシートの片面を上にして、もう一方の面を用いてゲルシートを貼り付ける。プローブタック試験はテクスチャーアナライザーＴＸ−ＡＴ(英弘精機株式会社製)を用いて測定する。プローブには直径１０ｍｍのＳＵＳ製プローブを用いた。１０００ｇの荷重で１０秒間、負荷をプローブの粘着面にかけた後、１０ｍｍ／ｓｅｃの速度でプローブを引き剥がす時の最大荷重（Ｎ）を測定する。粘着力は、最大荷重（Ｎ）を粘着面の面積で除した値（Ｎ／ｍｍ2）である。
(Adhesion measurement: probe tack test)
The gel sheet is cut into 3 × 3 cm and attached to a SUS plate fixed with a double-sided tape (Sliontec No. 5486) with one side of the gel sheet to be measured facing up, and the other side is used to attach the gel sheet. The probe tack test is measured using a texture analyzer TX-AT (manufactured by Eihiro Seiki Co., Ltd.). A SUS probe having a diameter of 10 mm was used as the probe. After applying the load to the adhesive surface of the probe for 10 seconds with a load of 1000 g, the maximum load (N) when the probe is peeled off at a speed of 10 mm / sec is measured. The adhesive force is a value (N / mm 2 ) obtained by dividing the maximum load (N) by the area of the adhesive surface.
〔動的粘弾性（貯蔵弾性率Ｇ'及び損失係数ｔａｎδ）の測定方法〕
本発明における動的粘弾性測定は粘弾性測定装置ＰＨＹＳＩＣＡ ＭＣＲ３０１（Ａｎｔｏｎ Ｐａａｒ社製）、温度制御システムＣＴＤ４５０、解析ソフトＲｈｅｏｐｌｕｓ、ジオメトリーにはφ８ｍｍの上下格子目加工パラレルプレートを用いて測定する。直径１０ｍｍ、厚さ２ｍｍの円盤状のゲルシート試験片を測定温度にした粘弾性測定装置のプレートに挟みノーマルフォース０．０５Ｎとなるようにプレート間距離を調整する。
更に測定温度±１℃を２分間保持した後、歪み１％、周波数０．１〜１００Ｈｚ、温度条件２３℃、窒素雰囲気、ノーマルフォース１Ｎ一定にする。
次に周波数が０．１Ｈｚから１００Ｈｚの範囲で、測定開始を高周波数（１００Ｈｚ）側から行なう。対数昇降、測定点数は５点／桁の条件で動的粘弾性測定を行うことで、貯蔵弾性率Ｇ'及び損失係数ｔａｎδを測定する。
[Measuring method of dynamic viscoelasticity (storage modulus G ′ and loss coefficient tan δ)]
The dynamic viscoelasticity measurement in the present invention is performed using a viscoelasticity measuring device PHYSICA MCR301 (manufactured by Anton Paar), a temperature control system CTD450, analysis software Rheoplus, and a geometry processing parallel plate of φ8 mm for the geometry. A disc-shaped gel sheet test piece having a diameter of 10 mm and a thickness of 2 mm is sandwiched between plates of a viscoelasticity measuring apparatus having a measurement temperature, and the distance between the plates is adjusted so that a normal force is 0.05N.
Further, after maintaining the measurement temperature ± 1 ° C. for 2 minutes, the strain is set to 1%, the frequency is 0.1 to 100 Hz, the temperature condition is 23 ° C., the nitrogen atmosphere, and the normal force is 1N.
Next, the measurement is started from the high frequency (100 Hz) side within the frequency range of 0.1 Hz to 100 Hz. The storage elastic modulus G ′ and the loss coefficient tan δ are measured by performing dynamic viscoelasticity measurement under the condition of logarithmic elevation and the number of measurement points of 5 points / digit.
（接着力測定）
ゲルシートを２５ｍｍ×１２．５ｍｍのサイズに切断し、ゲルシートの二つの剥離フィルムのうち、一方の剥離フィルムを剥がす。アルコール洗浄後にＪＩＳ Ｒ ６２５２：２００６に記載の２４０番研磨紙にて研磨したＳＰＣＣ鋼板に露出したゲルシートを圧着する。次いで、他方の剥離フィルムを剥がし、露出したゲルシートを、もう一つの同様に前処理したＳＰＣＣ鋼板に圧着する。送風式オーブンにて１２０℃で２時間保持して加熱硬化させ、その後常温で放冷したものを引張せん断接着強度測定用試験片とする。
(Adhesive strength measurement)
The gel sheet is cut into a size of 25 mm × 12.5 mm, and one of the two release films of the gel sheet is peeled off. After the alcohol cleaning, the gel sheet exposed to the SPCC steel plate polished with No. 240 polishing paper described in JIS R 6252: 2006 is pressure-bonded. The other release film is then peeled off and the exposed gel sheet is crimped to another similarly pretreated SPCC steel plate. A test piece for measuring the tensile shear bond strength is obtained by heating and curing at 120 ° C. for 2 hours in a blown oven, and then allowing to cool at room temperature.
次いで、試験片を、引張試験機テンシロン万能試験機ＵＣＴ−１０Ｔ（オリエンテック社製）、万能試験機データ処理ソフトＵＴＰＳ−４５８Ｘ（ソフトブレーン社製）を用い、ＪＩＳＫ６８５０：１９９９の７の手順に従い、ＪＩＳ Ｋ ７１００：１９９９の記号「２３／５０」（温度２３℃、相対湿度５０％）、２級の標準雰囲気下で１６時間以上かけて状態調整した後、同じ標準雰囲気下にて引張せん断接着強度（Ｎ／ｍｍ2）を測定する。但し、引張速度は、日本接着剤工業会規格ＪＡＩ−１５：２０１１に倣い、１．０±０．２(ｍｍ／分)とする。
引張せん断接着強さ（Ｎ／ｍｍ2）は次式により算出する。
Next, using the tensile tester Tensilon universal testing machine UCT-10T (manufactured by Orientec Co., Ltd.) and universal testing machine data processing software UTPS-458X (manufactured by Softbrain Corporation), the test piece is in accordance with the procedure of JIS K6850: 1999, JIS K 7100: 1999 symbol “23/50” (temperature: 23 ° C., relative humidity: 50%), after conditioning for over 16 hours under a second grade standard atmosphere, and tensile shear bond strength under the same standard atmosphere (N / mm 2 ) is measured. However, the tensile speed is 1.0 ± 0.2 (mm / min) in accordance with Japan Adhesive Industry Association Standard JAI-15: 2011.
The tensile shear bond strength (N / mm 2 ) is calculated by the following formula.
Ｓ＝Ｐ／Ａ
Ｓ：引張せん断接着強さ（Ｎ／ｍｍ2）
Ｐ：破断力（Ｎ）
Ａ：せん断面積（ｍｍ2）
（表面抵抗値測定）
各試料について１００ｍｍ角以上の面積に裁断し、セパレータであるポリエチレンテレフタレートフィルムを剥離した試験片の硬化後のゲルシート面上の表面抵抗値（Ω／ｃｍ2）を表面抵抗計(トレック・ジャパン社製、本体：Ｍｏｄｅｌ−１５２、プローブ：１５２Ｐ−ＣＲ)を用いて測定する。測定環境は、温度２３℃±５℃、湿度５５％±１０％で実施する。
S = P / A
S: Tensile shear bond strength (N / mm 2 )
P: Breaking force (N)
A: Shear area (mm 2 )
(Surface resistance measurement)
Each sample was cut into an area of 100 mm square or more, and the surface resistance value (Ω / cm 2 ) on the gel sheet surface after curing of the test piece from which the polyethylene terephthalate film as a separator was peeled was measured by a surface resistance meter (manufactured by Trek Japan) , Body: Model-152, probe: 152P-CR). Measurement is performed at a temperature of 23 ° C. ± 5 ° C. and a humidity of 55% ± 10%.
ゲルシート中に短繊維を分散させることによりゲルシートを補強してもよい。短繊維としては、天然繊維、ポリエステル繊維、ポリアミド繊維、アラミド繊維、ビニロン繊維、カーボン繊維、ガラス繊維、ポリオレフィン繊維からなる群の中から選ばれる１種又は２種以上の繊維が挙げられる。短繊維は、３〜５０ｍｍの繊維長を有することが好ましい。 The gel sheet may be reinforced by dispersing short fibers in the gel sheet. Examples of the short fibers include one or more fibers selected from the group consisting of natural fibers, polyester fibers, polyamide fibers, aramid fibers, vinylon fibers, carbon fibers, glass fibers, and polyolefin fibers. The short fiber preferably has a fiber length of 3 to 50 mm.
１：鋼材 ２：防食塗膜 ３：硬化膜 ４：陽極 ５：電流流路 ６：電源 1: Steel material 2: Anticorrosion coating film 3: Cured film 4: Anode 5: Current flow path 6: Power supply
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014198880A JP6244284B2 (en) | 2014-09-29 | 2014-09-29 | Method for preventing corrosion of steel material and adhesive gel sheet used in the method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014198880A JP6244284B2 (en) | 2014-09-29 | 2014-09-29 | Method for preventing corrosion of steel material and adhesive gel sheet used in the method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2016069673A true JP2016069673A (en) | 2016-05-09 |
| JP6244284B2 JP6244284B2 (en) | 2017-12-06 |
Family
ID=55866077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2014198880A Expired - Fee Related JP6244284B2 (en) | 2014-09-29 | 2014-09-29 | Method for preventing corrosion of steel material and adhesive gel sheet used in the method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP6244284B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019127606A (en) * | 2018-01-22 | 2019-08-01 | 積水化学工業株式会社 | ANTICORROSIve MEMBER AND ANTICORROSION METHOD |
| JP2020059831A (en) * | 2018-10-12 | 2020-04-16 | 積水化学工業株式会社 | Adhesive for anticorrosion, adhesive layer for anticorrosion, and adhesive tape for anticorrosion |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4847452A (en) * | 1971-10-22 | 1973-07-05 | ||
| JPH02111889A (en) * | 1988-10-18 | 1990-04-24 | Mitsuboshi Belting Ltd | Elastomer electrode for electric protection and anticorrosion technique utilizing electrode thereof |
| JPH10317178A (en) * | 1997-05-15 | 1998-12-02 | Dainippon Toryo Co Ltd | Corrosion-proof method of steel |
| JP2008127678A (en) * | 2006-11-24 | 2008-06-05 | Oriental Shiraishi Corp | Back fill for electrolytic protection to concrete structure and anode unit for electrolytic protection |
| JP2013204114A (en) * | 2012-03-29 | 2013-10-07 | Sekisui Plastics Co Ltd | Adhesive gel for electrolytic protection |
| JP2014162963A (en) * | 2013-02-26 | 2014-09-08 | Fujimori Kogyo Co Ltd | Corrosion protection structure and method |
-
2014
- 2014-09-29 JP JP2014198880A patent/JP6244284B2/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4847452A (en) * | 1971-10-22 | 1973-07-05 | ||
| JPH02111889A (en) * | 1988-10-18 | 1990-04-24 | Mitsuboshi Belting Ltd | Elastomer electrode for electric protection and anticorrosion technique utilizing electrode thereof |
| JPH10317178A (en) * | 1997-05-15 | 1998-12-02 | Dainippon Toryo Co Ltd | Corrosion-proof method of steel |
| JP2008127678A (en) * | 2006-11-24 | 2008-06-05 | Oriental Shiraishi Corp | Back fill for electrolytic protection to concrete structure and anode unit for electrolytic protection |
| JP2013204114A (en) * | 2012-03-29 | 2013-10-07 | Sekisui Plastics Co Ltd | Adhesive gel for electrolytic protection |
| JP2014162963A (en) * | 2013-02-26 | 2014-09-08 | Fujimori Kogyo Co Ltd | Corrosion protection structure and method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019127606A (en) * | 2018-01-22 | 2019-08-01 | 積水化学工業株式会社 | ANTICORROSIve MEMBER AND ANTICORROSION METHOD |
| JP2020059831A (en) * | 2018-10-12 | 2020-04-16 | 積水化学工業株式会社 | Adhesive for anticorrosion, adhesive layer for anticorrosion, and adhesive tape for anticorrosion |
| JP7358041B2 (en) | 2018-10-12 | 2023-10-10 | 積水化学工業株式会社 | Anticorrosive adhesive, anticorrosive adhesive layer, and anticorrosive adhesive tape |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6244284B2 (en) | 2017-12-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11623432B2 (en) | Metal-fiber-reinforced resin material composite and production method thereof | |
| JP6436593B2 (en) | Adhesive gel sheet having adhesive application, method for producing the same, method for fixing a pair of adherends, and composite material | |
| JP6838814B2 (en) | Release agent composition, release sheet and adhesive | |
| Park et al. | Strength and failure modes of surface treated CFRP secondary bonded single-lap joints in static and fatigue tensile loading regimes | |
| CN104893603A (en) | Adhesive sheet | |
| KR20130080596A (en) | Adhesive protective film | |
| CN105008480A (en) | Thermally conductive sheet | |
| TWI741103B (en) | Bearing plate for flexible device | |
| JP6244284B2 (en) | Method for preventing corrosion of steel material and adhesive gel sheet used in the method | |
| KR102175687B1 (en) | Seal material | |
| US20200406585A1 (en) | Metal-fiber reinforced resin material composite body and method for producing metal-fiber reinforced resin material composite body | |
| CN104403589A (en) | Adhesive reel | |
| JP2013103375A (en) | Anisotropic heat conductive film, method for production thereof, and battery pack | |
| TW201610080A (en) | Surface-protective film for transparent conductive film, and transparent conductive film using the same | |
| JP2017008213A (en) | Hot melt adhesive sheet, method for producing adhesive structure using the same, and method for peeling the same | |
| Kim et al. | Mode II fracture toughness of two‐part acrylic‐based adhesive in an adhesively bonded joint: end‐notched flexure tests under static loading | |
| JP6626125B2 (en) | Adhesive composition and adhesive tape | |
| JP2016069811A (en) | Concrete structure reinforcement method and sticking/adhesion gel sheet used in the method | |
| JP2016069814A (en) | Method for reinforcement of concrete structure with steel plate, and sticking/adhesion gel sheet used in the method | |
| JP6383582B2 (en) | Adhesive structure | |
| JP2016069812A (en) | Concrete structure reinforcement method and continuous fiber sheet-containing sticking/adhesion gel sheet used in the method | |
| JP2018168373A (en) | Antistatic adhesive tape | |
| JP2018177235A (en) | Adhesive laminate for electronic equipment component manufacturing process and manufacturing method of electronic equipment component using the same | |
| JP2013166873A (en) | Foam member carrier tape, foam member complex, polyester foam member conveyance method, polyester foam member processing method, and polyester foam member assembly method | |
| US20210337632A1 (en) | Sheet-like conductive member |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20161006 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20170623 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20170718 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20170825 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20171031 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20171113 |
|
| R150 | Certificate of patent or registration of utility model |
Ref document number: 6244284 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| LAPS | Cancellation because of no payment of annual fees |