JPH04275107A - Method of preventing corrosion of structure by synthetic resin coating - Google Patents
Method of preventing corrosion of structure by synthetic resin coatingInfo
- Publication number
- JPH04275107A JPH04275107A JP5948691A JP5948691A JPH04275107A JP H04275107 A JPH04275107 A JP H04275107A JP 5948691 A JP5948691 A JP 5948691A JP 5948691 A JP5948691 A JP 5948691A JP H04275107 A JPH04275107 A JP H04275107A
- Authority
- JP
- Japan
- Prior art keywords
- synthetic resin
- plate
- preventing corrosion
- curing agent
- immediately
- 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
- 229920003002 synthetic resin Polymers 0.000 title claims abstract description 35
- 239000000057 synthetic resin Substances 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000005260 corrosion Methods 0.000 title claims abstract description 14
- 230000007797 corrosion Effects 0.000 title claims abstract description 14
- 239000011248 coating agent Substances 0.000 title claims description 12
- 238000000576 coating method Methods 0.000 title claims description 12
- 239000000463 material Substances 0.000 claims abstract description 16
- 238000006243 chemical reaction Methods 0.000 claims abstract description 11
- 239000000203 mixture Substances 0.000 claims abstract description 8
- 239000003795 chemical substances by application Substances 0.000 claims description 12
- 238000002156 mixing Methods 0.000 claims description 5
- 239000000654 additive Substances 0.000 claims description 4
- 239000000945 filler Substances 0.000 claims description 4
- 239000000049 pigment Substances 0.000 claims description 4
- 230000000996 additive effect Effects 0.000 claims description 3
- 239000002075 main ingredient Substances 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 2
- 238000005536 corrosion prevention Methods 0.000 claims 1
- 238000000465 moulding Methods 0.000 claims 1
- 239000011241 protective layer Substances 0.000 abstract description 3
- 239000003822 epoxy resin Substances 0.000 description 7
- 229920000647 polyepoxide Polymers 0.000 description 7
- 238000010276 construction Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000011449 brick Substances 0.000 description 2
- 239000011247 coating layer Substances 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000012783 reinforcing fiber Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 239000004484 Briquette Substances 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007888 film coating Substances 0.000 description 1
- 238000009501 film coating Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
Landscapes
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は、２剤または３剤（液を
含む）以上の樹脂素材を混合して硬化する合成樹脂を調
成し、該硬化する合成樹脂によって構造物をコーティン
グして防食をする方法に関する。[Industrial Application Field] The present invention involves preparing a hardening synthetic resin by mixing two or three parts (including liquids) or more resin materials, and coating a structure with the hardening synthetic resin. Concerning methods for corrosion protection.
【０００２】0002
【従来の技術】従来、構造物への厚膜コーティングは、
合成樹脂２剤または３剤（液を含む）を現地で混合し、
ハケ、ヘラ、コテあるいはローラーや吹付け治具を用い
て行っていた。また、海洋構造物等の防食処理を行う場
合には、パイプ、矢板、型材等の表面に防食テープを貼
って防食し、更に強化繊維等を用いたＦＲＰ、ＦＲＶ等
のカバーを取付けて保護する方法があるが、寿命が短い
等の問題点があるので、２剤または３剤からなるエポキ
シ樹脂系等の湿潤面付着性の良い合成樹脂を現場で混合
して、研磨処理をした海洋構造物の表面にハケ、ヘラ、
コテあるいはローラーや圧送治具等を用いて塗布するこ
とが行われていた。[Prior Art] Conventionally, thick film coatings on structures are
Mix two or three synthetic resin parts (including liquid) on site,
This was done using a brush, spatula, trowel, roller, or spray jig. In addition, when performing anticorrosion treatment on marine structures, etc., apply anticorrosion tape to the surfaces of pipes, sheet piles, shapes, etc. to prevent corrosion, and further protect them by attaching FRP, FRV, etc. covers made of reinforcing fibers, etc. There is a method, but it has problems such as short life, so it is recommended to mix on-site a synthetic resin with good wet surface adhesion, such as a two- or three-part epoxy resin system, and polish the marine structure. Brush, spatula,
Application was performed using a trowel, a roller, a pressure-feeding jig, or the like.
【０００３】0003
【発明が解決しようとする課題】しかしながら、現場で
作業を行う場合、まず原料をミキサー等で混合して作業
者が所定量づつ海洋構造物に塗布するようにしていたの
で、準備に手間を要するという問題点があった。また、
硬化型樹脂は混合と同時に硬化が進行するので、所定時
間内に直ちに使いきる必要があり、所定時間を過ぎたも
のを使用した場合、本来の塗膜性能が得られないという
問題点があった。また、構造物に塗布する際に、ミキサ
ー等で混合した合成樹脂材料は、液状あるいは半練状で
、全体が柔らかいので、該合成樹脂材の伸ばし具合が難
しく熟練を必要とし、厚みが不均一と成りやすいという
問題点があった。この為、コーティング層の薄い部分は
使用中に破れ、その部分から腐食が中に進む場合がある
という問題点があった。本発明はかかる事情に鑑みてな
されたもので、コーティングする被覆層の厚みの管理が
容易で作業効率の良い信頼性の高い合成樹脂コーティン
グによる構造物の防食方法を提供することを目的とする
。[Problem to be solved by the invention] However, when work is carried out on site, the raw materials are first mixed in a mixer, etc., and then the worker applies a predetermined amount to the marine structure, which requires time and effort in preparation. There was a problem. Also,
Curing resins begin to harden at the same time as they are mixed, so they must be used up immediately within a predetermined time, and if they are used after the predetermined time, there is a problem that the original coating performance cannot be obtained. . In addition, when applying the synthetic resin material to a structure, the synthetic resin material mixed with a mixer etc. is in a liquid or semi-kneaded state and is soft as a whole, so it is difficult to stretch the synthetic resin material and requires skill, and the thickness is uneven. The problem was that it was easy for this to occur. For this reason, there is a problem in that the thin portion of the coating layer may break during use, and corrosion may proceed from that portion. The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a method for preventing corrosion of a structure by coating a structure with a synthetic resin, which allows easy control of the thickness of the coating layer, has good work efficiency, and is highly reliable.
【０００４】0004
【課題を解決するための手段】上記目的に沿う請求項第
１項記載の合成樹脂コーティングによる構造物の防食方
法は、合成樹脂主剤と硬化剤とを所定量混合し、直ちに
成形して非硬化の板体を製造する工程と、該板体を直ち
に冷却し固化させそのまま保存する工程と、該保存した
板体を必要に応じて取出し、常温状態で構造物を該板体
にて被覆する工程と、該被覆した板体を化学反応によっ
て硬化させる工程とを有して構成されている。請求項第
２項記載の合成樹脂コーティングによる構造物の防食方
法は、請求項第１項記載の方法において、合成樹脂主剤
及び硬化剤の少なくとも一方には、充填剤、顔料及び添
加剤の少なくとも何れか一つが含まれて構成されている
。そして、請求項第３項記載の合成樹脂コーティングに
よる構造物の防食方法においては、請求項第１項または
第２項記載の方法において、合成樹脂主剤と硬化剤との
混合時に、充填剤、顔料、添加剤の少なくとも一つを混
合して行うようにして構成されている。[Means for Solving the Problem] A method for preventing corrosion of a structure by coating a synthetic resin according to claim 1 in accordance with the above object is to mix a synthetic resin base agent and a curing agent in a predetermined amount, and immediately mold and uncure. A process of manufacturing a board, a process of immediately cooling and solidifying the board and storing it as it is, and a process of taking out the stored board as needed and covering the structure with the board at room temperature. and a step of curing the coated plate through a chemical reaction. The method for preventing corrosion of a structure by coating a synthetic resin according to claim 2 is the method according to claim 1, in which at least one of the synthetic resin base material and the curing agent contains at least one of a filler, a pigment, and an additive. It is composed of one or more of the following. In the method for preventing corrosion of a structure by coating a synthetic resin according to claim 3, in the method according to claim 1 or 2, when mixing the synthetic resin base material and the curing agent, filler, pigment, etc. , and at least one of the additives are mixed therein.
【０００５】[0005]
【作用】請求項第１項〜第３項記載の合成樹脂コーティ
ングによる構造物の防食方法は、合成樹脂主剤と硬化剤
を所定量混合して、反応硬化前の合成樹脂混合物を作り
、これから直ちに板体を成形し、該板体を直ちに冷却し
て合成樹脂主剤と硬化剤との反応を止めると共に低温固
化させ、必要な場合はそのまま保存する。工事を行う場
合には、冷却あるいは冷凍保存状態の該板体を取出し、
常温中に曝すと、該板体は表面から温度が上がり徐々に
軟化するが内部は硬い状態であるので、構造物に押付け
ても硬い芯の部分があって厚みを保持することができる
。そして、表面は軟化しているので、付着性を有しその
まま押しつけて防食しようとする構造物にコーティング
することができる。[Operation] The method for preventing corrosion of a structure by coating a synthetic resin according to claims 1 to 3 is to mix a synthetic resin main ingredient and a hardening agent in a predetermined amount to prepare a synthetic resin mixture before reaction hardening, and then immediately A plate is molded, and the plate is immediately cooled to stop the reaction between the synthetic resin base material and the curing agent and solidified at a low temperature, and if necessary, stored as is. When carrying out construction work, take out the plate that has been cooled or frozen, and
When exposed to room temperature, the plate heats up from the surface and gradually softens, but the inside remains hard, so even when pressed against a structure, the hard core allows the plate to maintain its thickness. Since the surface is softened, it has adhesive properties and can be applied as is to coat the structure to be protected against corrosion.
【０００６】[0006]
【実施例】続いて、本発明を具体化した実施例につき説
明し、本発明の理解に供する。まず、原料である合成樹
脂主剤の一例であるエポキシ樹脂に、硬化剤の一例であ
るアミン類（ジエチルトリアミンまたはトリエチルテト
ラミン）、あるいはポリアミド硬化剤を所定量入れてミ
キサーで混合し、半煉状物を作る。この半煉状物を直ち
に枠体内に入れて板状に成形し、この板体をエポキシ樹
脂混合物の硬化反応が進行しない内に、急速冷凍する。
急速冷凍の方法としては、直ちに温度が−２０〜−８０
℃以下の冷蔵庫に入れるか、あるいは液体窒素を利用し
て急速に温度を下げる。これによって板体の反応硬化を
止めることができ、しかも、一方において低温固化をさ
せることができる。従って、このまま保存しておけば低
温固化した板体の状態で保持できる。[Examples] Next, examples embodying the present invention will be explained to provide an understanding of the present invention. First, a predetermined amount of amines (diethyltriamine or triethyltetramine) or a polyamide curing agent, which is an example of a curing agent, is added to an epoxy resin, which is an example of a synthetic resin main ingredient, which is a raw material, and mixed in a mixer to form a semi-briquette. make. This semi-brick material is immediately put into a frame and formed into a plate, and this plate is quickly frozen before the curing reaction of the epoxy resin mixture progresses. As for the rapid freezing method, the temperature should be immediately reduced to -20 to -80.
Place in a refrigerator below ℃ or use liquid nitrogen to rapidly lower the temperature. This makes it possible to stop the reaction hardening of the plate, and on the other hand, it is possible to carry out low-temperature solidification. Therefore, if it is stored as is, it can be kept in the state of a plate solidified at a low temperature.
【０００７】次に、工事を行う場合には、該板体を温度
を冷やした状態で現場まで搬送し、現場で取出し常温に
曝すと板体は徐々に軟化を始める。これによって、該板
体の表面は軟化を始めて付着性を有するようになるが、
内部は固化した状態を保持するので、押しても潰れない
板体となる。ここで予め、ブラスト処理をした海洋構造
物に押し当てて付着させ、放置することによってエポキ
シ樹脂が反応硬化を起こし、均一厚みの保護層を形成す
ることができる。[0007] Next, when construction is to be carried out, the plate is transported to the site in a cooled state, and when it is taken out at the site and exposed to room temperature, the plate starts to gradually soften. As a result, the surface of the plate begins to soften and become adhesive, but
Since the inside remains solidified, it becomes a plate that will not collapse even when pressed. By pressing the epoxy resin against a marine structure that has been previously subjected to a blasting process and leaving it to stand, the epoxy resin reacts and hardens, forming a protective layer with a uniform thickness.
【０００８】なお、合成樹脂の種類によっては、半煉状
の板体を極めて低い温度まで下げて固化させると、固化
した板体が脆くなって、しかも工事を行う場合に直ちに
内部が適当な温度まで上昇しない場合がある。そこで、
温度を下げるのは合成樹脂が硬化反応を起こさない範囲
で充分である。また、長期の保存を要しない場合には、
現場までの輸送時間を考慮して、硬化反応が殆ど起こら
ず、しかもある程度は曲げることができる範囲の低温固
化が発生する程度に止めることが好ましい。そして、板
体の厚みは１〜１０ｍｍ、広さは約２０×３０ｃｍ程度
が取扱いに容易であるが、本発明は厚み、広さによって
限定されるものではない。[0008] Depending on the type of synthetic resin, if a semi-brick-like plate is lowered to an extremely low temperature and solidified, the solidified plate becomes brittle, and furthermore, when construction is to be carried out, the interior must be immediately heated to an appropriate temperature. It may not rise to that level. Therefore,
It is sufficient to lower the temperature to the extent that the synthetic resin does not undergo a curing reaction. In addition, if long-term storage is not required,
In consideration of the transportation time to the site, it is preferable to limit the curing reaction to such a level that almost no curing reaction occurs, and at the same time, low-temperature solidification occurs within a range that allows bending to some extent. It is easy to handle the plate if it has a thickness of 1 to 10 mm and a width of about 20 x 30 cm, but the present invention is not limited by the thickness or width.
【０００９】上記実施例においては、エポキシ樹脂系混
合物であるが、他に、例えばアクリル系合成樹脂、ポリ
エステル系合成樹脂、ウレタン樹脂系混合物の合成樹脂
素材であっても本発明は適用される。また、強度を増す
為に上記エポキシ樹脂の中にガラス繊維等の強化繊維を
入れる場合も本発明は適用される。In the above embodiments, an epoxy resin mixture is used, but the present invention is also applicable to other synthetic resin materials such as acrylic synthetic resins, polyester synthetic resins, and urethane resin mixtures. The present invention is also applicable to cases where reinforcing fibers such as glass fibers are added to the epoxy resin to increase strength.
【００１０】0010
【発明の効果】本発明に係る合成樹脂コーティングによ
る構造物の防食方法は、以上の説明からも明らかなよう
に、未硬化の半煉状の合成樹脂混合物を直ちに冷凍固化
させて板体とし、この状態を保持して反応硬化を止め現
場において常温に曝し、表面を軟化させて付着性を良く
し、構造物に貼着させているので、工事の施工が容易で
ある。そして、板体を現場で常温に曝しても芯の部分ま
では軟化しないので、一定の厚みを保つことができ、一
定の厚みの保護層を極めて容易に形成することができる
。Effects of the Invention As is clear from the above explanation, the method for preventing corrosion of structures by coating synthetic resin according to the present invention involves immediately freezing and solidifying an uncured semi-brick synthetic resin mixture to form a plate; This state is maintained to prevent reaction hardening and the material is exposed to room temperature at the site to soften the surface and improve adhesion to the structure, making construction easier. Furthermore, even if the plate is exposed to room temperature on site, the core does not soften, so a constant thickness can be maintained, and a protective layer with a constant thickness can be formed extremely easily.
Claims (3)
し、直ちに成形して非硬化の板体を製造する工程と、該
板体を直ちに冷却し固化させそのまま保存する工程と、
該保存した板体を必要に応じて取出し、常温状態で構造
物を該板体にて被覆する工程と、該被覆した板体を化学
反応によって硬化させる工程とを有してなる合成樹脂コ
ーティングによる構造物の防食方法。1. A step of mixing a predetermined amount of a synthetic resin base material and a curing agent and immediately molding the mixture to produce an uncured plate; and a step of immediately cooling and solidifying the plate and storing it as it is.
Synthetic resin coating comprising the steps of taking out the stored plate as necessary and covering the structure with the plate at room temperature, and curing the coated plate through a chemical reaction. Corrosion prevention methods for structures.
一方には、充填剤、顔料及び添加剤の少なくとも何れか
一つが含まれている請求項第１項記載の合成樹脂コーテ
ィングによる構造物の防食方法。2. The method for preventing corrosion of a structure using a synthetic resin coating according to claim 1, wherein at least one of the synthetic resin main agent and the curing agent contains at least one of a filler, a pigment, and an additive. .
充填剤、顔料、添加剤の少なくとも一つを混合して行う
請求項第１項または請求項第２項記載の合成樹脂コーテ
ィングによる構造物の防食方法。[Claim 3] When mixing the synthetic resin main ingredient and the curing agent,
3. A method for preventing corrosion of a structure by coating a structure with a synthetic resin according to claim 1 or claim 2, which is carried out by mixing at least one of a filler, a pigment, and an additive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5948691A JPH0730571B2 (en) | 1991-02-28 | 1991-02-28 | Anticorrosion method for structures with synthetic resin coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5948691A JPH0730571B2 (en) | 1991-02-28 | 1991-02-28 | Anticorrosion method for structures with synthetic resin coating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04275107A true JPH04275107A (en) | 1992-09-30 |
| JPH0730571B2 JPH0730571B2 (en) | 1995-04-05 |
Family
ID=13114681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5948691A Expired - Lifetime JPH0730571B2 (en) | 1991-02-28 | 1991-02-28 | Anticorrosion method for structures with synthetic resin coating |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0730571B2 (en) |
-
1991
- 1991-02-28 JP JP5948691A patent/JPH0730571B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0730571B2 (en) | 1995-04-05 |
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