JPH01108271A - Corrosion-preventive film which prevent diffusion of water vapor - Google Patents
Corrosion-preventive film which prevent diffusion of water vaporInfo
- Publication number
- JPH01108271A JPH01108271A JP26284587A JP26284587A JPH01108271A JP H01108271 A JPH01108271 A JP H01108271A JP 26284587 A JP26284587 A JP 26284587A JP 26284587 A JP26284587 A JP 26284587A JP H01108271 A JPH01108271 A JP H01108271A
- Authority
- JP
- Japan
- Prior art keywords
- water vapor
- film
- base material
- diffusion
- corrosion
- 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.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 62
- 238000009792 diffusion process Methods 0.000 title claims abstract description 34
- 239000000463 material Substances 0.000 claims abstract description 20
- 239000000203 mixture Substances 0.000 claims abstract description 9
- 239000000919 ceramic Substances 0.000 claims abstract description 8
- 239000000843 powder Substances 0.000 claims abstract description 7
- 229910052751 metal Inorganic materials 0.000 claims description 14
- 239000002184 metal Substances 0.000 claims description 10
- 238000000576 coating method Methods 0.000 abstract description 50
- 239000011248 coating agent Substances 0.000 abstract description 45
- 238000005260 corrosion Methods 0.000 abstract description 15
- 230000007797 corrosion Effects 0.000 abstract description 12
- 239000000126 substance Substances 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 5
- 229920003257 polycarbosilane Polymers 0.000 abstract description 4
- 125000000217 alkyl group Chemical group 0.000 abstract description 3
- 229920001577 copolymer Polymers 0.000 abstract description 2
- 238000005336 cracking Methods 0.000 abstract description 2
- 229910052719 titanium Inorganic materials 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract 2
- 150000001875 compounds Chemical class 0.000 abstract 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 abstract 1
- 229920005989 resin Polymers 0.000 description 11
- 239000011347 resin Substances 0.000 description 11
- 239000000945 filler Substances 0.000 description 9
- 230000008961 swelling Effects 0.000 description 8
- 239000006223 plastic coating Substances 0.000 description 7
- 230000007423 decrease Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- 239000003973 paint Substances 0.000 description 5
- 239000000758 substrate Substances 0.000 description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 238000001723 curing Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 229910052755 nonmetal Inorganic materials 0.000 description 3
- -1 polypropylene Polymers 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- 239000005060 rubber Substances 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000003849 aromatic solvent Substances 0.000 description 2
- 238000005422 blasting Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 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 2
- 230000007774 longterm Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 229920006337 unsaturated polyester resin Polymers 0.000 description 2
- 239000008096 xylene Substances 0.000 description 2
- MIZLGWKEZAPEFJ-UHFFFAOYSA-N 1,1,2-trifluoroethene Chemical group FC=C(F)F MIZLGWKEZAPEFJ-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011346 highly viscous material Substances 0.000 description 1
- 239000012770 industrial material Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910052575 non-oxide ceramic Inorganic materials 0.000 description 1
- 239000011225 non-oxide ceramic Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 238000012643 polycondensation polymerization Methods 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
- 229920001567 vinyl ester resin Polymers 0.000 description 1
Landscapes
- Paints Or Removers (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、一般産業機器・器材の防食を目的とし、水蒸
気拡散による塗膜の脹れを防止した水蒸気拡散防止防食
膜に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a water vapor diffusion prevention anti-corrosion film that prevents swelling of a coating film due to water vapor diffusion, with the aim of preventing corrosion of general industrial equipment and equipment.
タンク、各種ガス吸収塔、反応器、配管、ポンプ、バル
ブ等のプラント機器類、化学装置用材料類、半導体等の
電気・電子機器材料類等を構成する金属および/または
非金属器材・機器の多くは、水蒸気および/または水分
を含む気体、液体、固液体または固体等の水分含有物(
以下単に含有物と称す。)と常時あるいは間歇的に接す
るため、腐蝕されることが多い。Metal and/or non-metallic equipment and equipment constituting tanks, various gas absorption towers, reactors, piping, pumps, valves and other plant equipment, chemical equipment materials, semiconductors and other electrical and electronic equipment materials, etc. Many contain water vapor and/or water-containing gases, liquids, solid-liquids, or solids (
Hereinafter, it will be simply referred to as an inclusion. ), it is often corroded because it is in constant or intermittent contact with
そこで現在では、これら機器類の金属材料の耐食性を向
上させるために、各種コーティング、ライニングが施さ
れており、その主要なものとしてプラスチックコーティ
ング、ゴムライニングおよびグラスライニングを挙げる
ことができる。Therefore, various coatings and linings are currently applied to improve the corrosion resistance of the metal materials of these devices, and the main ones include plastic coatings, rubber linings, and glass linings.
グラスライニングは、耐食性塗膜として優れた性質を有
するが、600℃以上の焼き付けを必要とするので、大
型機器、あるいは既に設置された機器には通用できず、
またその施工コストも高い。Glass lining has excellent properties as a corrosion-resistant coating, but since it requires baking at 600°C or higher, it cannot be used for large equipment or equipment that has already been installed.
Moreover, its construction cost is high.
プラスチックコーティングおよびゴムライニングは、グ
ラスライニングのような高温の焼き付けを必要とせず、
しかも現場で施工できる等の多くの利点を有している。Plastic coatings and rubber linings do not require high temperature baking like glass linings.
Moreover, it has many advantages such as being able to be constructed on site.
従って、その耐熱温度以下で使用されるプラント機器類
の防食用として現在広く使用されている。Therefore, it is currently widely used for corrosion protection of plant equipment that is used below its heat-resistant temperature.
しかしながら、プラスチックコーティングおよびゴムラ
イニングの欠点は、水蒸気拡散に対する抵抗が弱いこと
である。例えば水蒸気にさらした塗膜は、次第に膨れを
生じ、金属等機器内壁面も防食される。However, the disadvantage of plastic coatings and rubber linings is their poor resistance to water vapor diffusion. For example, a coating film exposed to water vapor gradually swells, and the interior walls of metal and other equipment are also protected from corrosion.
また、100〜200℃以上の耐熱温度以上においては
、通常のプラスチックコーティングでは対処できず、ス
テンレスを用いたりあるいはテフロンコーティングを施
していたが、その施工コストは高く実用的ではなかった
。In addition, ordinary plastic coatings cannot cope with temperatures exceeding the heat-resistant temperature range of 100 to 200° C., so stainless steel or Teflon coatings have been used, but the construction costs were high and impractical.
金属および/または非金属基材機器を保護する塗膜を介
して、これら基材機器と接する水蒸気および/または水
分含有物の温度が、これら基材機器の壁面温度よりも高
い場合には、水蒸気や水蒸気含有物中の水蒸気および/
または水分が温度差にもとづく水蒸気圧により塗膜内を
拡散して塗膜と該基材機器の境界に達し壁面の腐食を行
う。If the temperature of water vapor and/or water-containing substances that come into contact with metal and/or non-metal based equipment through a coating that protects these equipment is higher than the wall temperature of these equipment, water vapor and/or water vapor in water vapor-containing materials.
Alternatively, moisture diffuses within the coating film due to water vapor pressure based on the temperature difference, reaches the boundary between the coating film and the base equipment, and corrodes the wall surface.
さらにはこれら基材機器の内壁温度が水蒸気の凝固点以
下であり、且つこれら基材機器を保護する塗膜を介して
これら基材機器と接する水蒸気および/または水分含有
物の温度がこれら基材機器の壁面温度よりも高い場合に
は、塗膜内を拡散した水蒸気が塗膜とこれら基材機器の
境界で冷やされ、凝縮して水となる。Furthermore, the inner wall temperature of these base devices is below the freezing point of water vapor, and the temperature of the water vapor and/or water-containing material that comes into contact with these base devices through the coating film that protects these base devices is below the freezing point of water vapor. If the temperature is higher than the wall surface temperature of the coating, the water vapor that has diffused within the coating is cooled at the interface between the coating and these base devices and condenses into water.
この凝縮水は、これら基材機器を腐食し、またこれら基
材機器を保護する塗膜を膨脹させ、最終的には塗膜に亀
裂を発生させる。かかる水蒸気拡散に起因するコーティ
ング、ライニング(以下、塗膜)等の腐食・腫脹現象は
、不飽和ポリエステル樹脂、ビニルエステル樹脂、エポ
キシ樹脂、フェノール樹脂等の熱硬化性樹脂系塗膜およ
び、弗素樹脂、ポリプロピレン樹脂、ポリ塩化ビニル樹
脂等の熱可塑性樹脂系の塗膜にも、天然ゴム、合成ゴム
系の塗膜のゴム類にも共通して見られる問題点である。This condensed water corrodes these base equipment, and also causes the coating film that protects these base equipment to swell, eventually causing cracks in the coating film. Corrosion and swelling phenomena of coatings, linings (hereinafter referred to as paint films) caused by water vapor diffusion are caused by thermosetting resin coatings such as unsaturated polyester resins, vinyl ester resins, epoxy resins, phenol resins, and fluororesin resins. This problem is common to coatings made of thermoplastic resins such as polypropylene resin and polyvinyl chloride resin, as well as coatings made of natural rubber and synthetic rubber.
本発明は、上記従来の欠点を解消すべくなされたもので
あり、長期間の使用においても水蒸気拡散に起因する塗
膜の脹れ、膨脹による亀裂、腐食を防止することができ
る水蒸気拡散防止防食膜を提供することを目的とするも
のである。The present invention was made in order to eliminate the above-mentioned conventional drawbacks, and is a water vapor diffusion prevention corrosion protection device that can prevent the swelling of the coating film caused by water vapor diffusion, cracking due to expansion, and corrosion even during long-term use. The purpose is to provide a membrane.
上記目的を達成する本発明の水蒸気拡散防止防食膜は、
金属および/または非金属基材と、該基材の壁面温度よ
りも高温の水蒸気および/または水分含有物との接触面
に形成され、ポリメタロカルボシランとセラミック粉末
との混合物から成ることを特徴とするものである。かか
る本発明の水蒸気拡散防止防食膜は前述した施工が容易
というプラスチックコーティング剤の長所を有し、かつ
水蒸気拡散に対して大きな抵抗を示すものである。The anti-corrosion film for preventing water vapor diffusion of the present invention that achieves the above object is:
It is formed on the contact surface between a metal and/or non-metallic base material and water vapor and/or a water-containing material whose temperature is higher than the wall surface temperature of the base material, and is characterized by being made of a mixture of polymetallocarbosilane and ceramic powder. That is. The anticorrosion film for preventing water vapor diffusion of the present invention has the above-mentioned advantage of being easy to apply as a plastic coating agent, and also exhibits high resistance to water vapor diffusion.
ここで本発明における金属および/または非金属基材と
は、本発明の水蒸気拡散防食膜が形成されるタンク、各
種ガス吸収塔、反応器、配管、ポンプ、バルブ等のプラ
ント機器類、化学装置用材料類、半導体の電気・電子機
器材料類、自動車・航空機用材料類等を構成する金属お
よび/または非金属基材機器を意味する。Here, the metal and/or non-metal base material in the present invention refers to tanks, various gas absorption towers, reactors, plant equipment such as piping, pumps, valves, etc., and chemical equipment on which the water vapor diffusion protection film of the present invention is formed. It refers to metal and/or non-metal base equipment that constitutes industrial materials, semiconductor electrical/electronic equipment materials, automobile/aircraft materials, etc.
本発明で使用されるポリメタロカルボシランは、例えば
特開昭56−5828 、特開昭62〜48773公報
に記載されているように、下記(A)および(B)の構
成単位を有するポリカルボシラン(ここで、R1、R2
% R3% Raは水素原子、01〜C4のアルキル基
またはフェニル基である)と、
(A) R+ (B) R3→S
i −CH2÷ −+Si −0−)−R2Ra
下記(C)および(D)の構造単位を有するポリメタロ
シロキサン(ここでMは、TiおよびZrから選ばれた
金属原子であり、R5、R6はC1〜C4のアルキル基
または酸素である)(重置以下余白)
(C) R1(D) 1
→O−SN −0→−1
1−(−0−M −0←
Rs 1との共重合体で
ある。The polymetallocarbosilane used in the present invention is a polycarbosilane having the following structural units (A) and (B), as described in, for example, JP-A-56-5828 and JP-A-62-48773. Silane (where R1, R2
(A) R+ (B) R3→S
i -CH2÷ -+Si -0-)-R2Ra Polymetallosiloxane having the following structural units (C) and (D) (where M is a metal atom selected from Ti and Zr, R5 and R6 are (C1 to C4 alkyl group or oxygen) (space below superimposition) (C) R1(D) 1 →O-SN -0→-1 1-(-0-M -0← Copolymerization with Rs 1 It is a combination.
そしてポリカルボシランにおける構造単位(A)と(B
)との比率は5:1〜200 : 1であり、ポリメタ
ロシロキサンにおける構造単位(C)と(D)の比率は
l:30〜30:1である。And structural units (A) and (B) in polycarbosilane
) is 5:1 to 200:1, and the ratio of structural units (C) to (D) in the polymetallosiloxane is 1:30 to 30:1.
ポリメタロカルボシランにおける珪素を含む金属元素の
量は、塗膜の水蒸気拡散抵抗に影響を与え、金属元素量
が少なくなるにつれて塗膜の水蒸気拡散抵抗が低下する
。本発明においては、ポリメタロカルボシランにおける
珪素を含む金属元素の量は、通常では15重量%以上、
好ましくは20重量%以上である。The amount of metal elements including silicon in polymetallocarbosilane influences the water vapor diffusion resistance of the coating film, and as the amount of metal elements decreases, the water vapor diffusion resistance of the coating film decreases. In the present invention, the amount of metal elements containing silicon in the polymetallocarbosilane is usually 15% by weight or more,
Preferably it is 20% by weight or more.
かかるポリメタロカルボシランはポリカルボシランとポ
リメタロシロキサンを1:100〜100:1の割合で
混合し、この混合物に例えば、低分子アルコール等芳香
族系の溶媒を加え、窒素等不活性ガス中で50〜150
℃で1〜100時間縮重合させ、次いで溶媒を除去する
ことにより共重合体として得られる。Such polymetallocarbosilane is prepared by mixing polycarbosilane and polymetallosiloxane in a ratio of 1:100 to 100:1, adding an aromatic solvent such as a low-molecular-weight alcohol to this mixture, and adding an aromatic solvent such as a low-molecular-weight alcohol to the mixture in an inert gas such as nitrogen. 50-150
A copolymer is obtained by carrying out condensation polymerization at a temperature of 1 to 100 hours and then removing the solvent.
得られたポリメタロカルボシランは、1000〜5oo
ooの分子量を有する高粘性物質であるので、塗膜とし
て使用される場合には有機溶媒に溶解して用いられる。The obtained polymetallocarbosilane has a molecular weight of 1000 to 5oo
Since it is a highly viscous substance with a molecular weight of 0.000, it is dissolved in an organic solvent when used as a coating film.
有機溶媒としては、ポリメタロカルボシランの乾燥しや
すさを考慮して、ベンゼン、トルエン、キシレン、テト
ラヒドロフラン、およびエタノール、ブタノール等の低
分子アルコール等が使用される。As the organic solvent, benzene, toluene, xylene, tetrahydrofuran, and low molecular weight alcohols such as ethanol and butanol are used, taking into account the ease of drying the polymetallocarbosilane.
本発明において、ポリメタロカルボシランの塗膜が良好
な水蒸気拡散性能を保持するためには、f&達するよう
に添加されるセラミック粉末、即ちフィラーの種類と添
加量が極めて重要である。In the present invention, in order for the polymetallocarbosilane coating film to maintain good water vapor diffusion performance, the type and amount of ceramic powder, ie, filler, added to reach f& are extremely important.
フィラーとして好適に使用されるセラミック粉末は、ア
ルミナ、シリカ、チタニャ、ジルコニア等の金属酸化物
および、炭化珪素、炭化チタン、窒化珪素等の非酸化物
系セラミック等をあげることができる。さらに塗膜の耐
食性を維持するために、耐薬品性に優れたものが使用条
件に応じ適宜選ばれる。Ceramic powders suitably used as fillers include metal oxides such as alumina, silica, titania, and zirconia, and non-oxide ceramics such as silicon carbide, titanium carbide, and silicon nitride. Furthermore, in order to maintain the corrosion resistance of the coating film, one with excellent chemical resistance is appropriately selected depending on the usage conditions.
かかるフィラーの粒子径は、小さいほど樹脂中で密構造
を有し、塗膜性能に良好な効果を与える。通常では、2
0μ以下であり、好ましくは数μ以下である。20μよ
り大きいものは塗布後学膜内で沈降し樹脂中にフィラー
の密度差が生じ好ましくない。The smaller the particle size of such a filler, the denser the structure in the resin, which has a better effect on coating performance. Normally, 2
It is 0μ or less, preferably several μ or less. If it is larger than 20 μm, it will settle in the film after coating and cause a difference in filler density in the resin, which is not preferable.
またその使用量はポリメタロカルボシラン100重量部
あたり20〜250重量部、好ましくは50〜250重
量部である。The amount used is 20 to 250 parts by weight, preferably 50 to 250 parts by weight per 100 parts by weight of polymetallocarbosilane.
フィラーの添加量が20重量部に満たないと、塗膜の水
蒸気拡散抵抗が低下して塗膜の脹れが発生する。またフ
ィラーの添加量が250重量部を越えると、得られる塗
膜の粘度が増大しすぎて塗布欠陥を生じやすくなり防食
性能が低下する。If the amount of filler added is less than 20 parts by weight, the water vapor diffusion resistance of the coating film decreases, causing swelling of the coating film. If the amount of filler added exceeds 250 parts by weight, the viscosity of the resulting coating film will increase too much, making coating defects more likely to occur and the anticorrosion performance will decrease.
本発明の塗膜の水蒸気拡散抵抗が大きい理由はまだ明ら
かではないが、ポリメタロカルボシランが上記構造単位
(A)〜(D)から明らかなように珪素等の無機元素を
多量に含むため、通常の不飽和ポリエステル樹脂、エポ
キシ樹脂、弗素樹脂等のプラスチック系塗膜と比較して
セラミックに近い密構造を有することと、さらにフィラ
ーの添加によりこの密構造がより一層促進されること等
により水蒸気の拡散抵抗を大きくしているものと推定さ
れる。例えば、ポリメタロカルボシラン中の金属元素の
量が少なくなるに従い水蒸気拡散抵抗は小さくなる。The reason why the water vapor diffusion resistance of the coating film of the present invention is high is not yet clear, but as is clear from the above structural units (A) to (D), polymetallocarbosilane contains a large amount of inorganic elements such as silicon. Compared to ordinary plastic coatings such as unsaturated polyester resins, epoxy resins, and fluorine resins, it has a dense structure similar to that of ceramics, and the addition of fillers further promotes this dense structure. It is estimated that this increases the diffusion resistance of For example, as the amount of metal elements in polymetallocarbosilane decreases, the water vapor diffusion resistance decreases.
さらには、フィラーの添加は塗膜に硬度を与えると共に
、塗膜の硬化に伴う圧縮応力を緩和し塗膜欠陥の生成を
防止すると共に、塗膜中を拡散してきた水蒸気の物理的
な障害となり水蒸気の拡散抵抗をより一層高めるものと
推定される。Furthermore, the addition of fillers not only gives hardness to the paint film, but also relieves the compressive stress that accompanies the hardening of the paint film and prevents the formation of film defects, as well as acting as a physical barrier to water vapor that has diffused through the paint film. It is estimated that this further increases the resistance to water vapor diffusion.
次に本発明の水蒸気拡散防止防食膜の製造方法について
説明する。Next, a method for manufacturing the anticorrosion film for preventing water vapor diffusion of the present invention will be explained.
まず水蒸気拡散防止防食膜が塗布される金属および/ま
たは非金属基材の前処理として、塗膜の接着性を向上さ
せるために、これら基材の錆をとり、脱脂を含む表面清
浄処理を行う。なお、基材のブラスト処理は不可欠では
ないが、塗膜寿命を長くするためには、プラスト処理の
実施が好ましい。First, as a pretreatment of the metal and/or non-metallic substrates to which the anti-corrosion coating to prevent water vapor diffusion is applied, surface cleaning treatment including removal of rust and degreasing is performed on these substrates in order to improve the adhesion of the coating. . Although blasting of the base material is not essential, it is preferable to carry out blasting in order to extend the life of the coating film.
水蒸気拡散防止防食膜の製造方法としては、使用したポ
リメタロカルボシランの清浄により、常温乾燥、もしく
は250℃以下の焼き付けが選択される。As a method for manufacturing the anticorrosion film for preventing water vapor diffusion, drying at room temperature or baking at 250° C. or lower is selected depending on the cleanliness of the polymetallocarbosilane used.
塗膜を厚くする場合には、塗り重ねが必要であり、この
場合には前塗りの塗膜を短時間で硬化させるために焼き
付は法が採用される。In order to thicken the coating, it is necessary to recoat the coating, and in this case, a baking method is used to harden the precoated coating in a short time.
塗膜の厚さは通常では50〜300μ程度の範囲であり
、50μ未満では塗膜面への異物の混入等による膜欠陥
が、そのまま基材表面に影響を与え、装置腐食を早める
ことになる。The thickness of the coating film is usually in the range of 50 to 300μ, and if it is less than 50μ, film defects due to foreign matter entering the coating surface will directly affect the base material surface, accelerating equipment corrosion. .
また、300μを越える塗膜の厚さは、コストの増大に
比べて装置寿命を伸ばす効果が少ないので好ましくない
。Further, a coating thickness exceeding 300 μm is not preferable because it has little effect on extending the life of the device compared to the increase in cost.
本発明における水蒸気および/または水分含有物とは、
気体、固液体、固気体等を含む流体、固体等あらゆる状
態のものであって、水蒸気および/または水分を含む。The water vapor and/or water-containing substance in the present invention is
It is in any state such as gas, solid liquid, fluid including solid gas, solid, etc., and contains water vapor and/or moisture.
これら水分含有物は、機器中に貯蔵された状態で、機器
中を通過する状態で、または基材を何らかの処理をする
ために、これら基材と接触されるものである。These moisture-containing substances are brought into contact with the substrate while being stored in the equipment, passing through the equipment, or in order to perform some treatment on the substrate.
以上述べたように、本発明の水蒸気拡散防止防食膜は、
ポリメタロカルボシランとセラミック粉末との混合物か
らなり、優れた水蒸気拡散抵抗を持つことから、温度差
が5℃以上および/または昼夜の気温差が大きい地域等
の金属および/または非金属基材に塗布することにより
長期間の使用においても本塗膜の水蒸気拡散による膨張
・脹れから防止し防食効果を与えるものである。As described above, the anticorrosion film for preventing water vapor diffusion of the present invention is
It is made of a mixture of polymetallocarbosilane and ceramic powder and has excellent water vapor diffusion resistance, so it can be used on metal and/or non-metallic substrates in areas where the temperature difference is 5°C or more and/or where there is a large temperature difference between day and night. By applying this coating, even during long-term use, it prevents the coating film from expanding and blistering due to water vapor diffusion, providing an anticorrosion effect.
以下、本発明の実施例を述べる。Examples of the present invention will be described below.
実施例1
ポリチタノカルボシランの50%キシレン溶液(宇部興
産社製チラノコートワニスタイプ)を、ポリチタノカル
ボシランが重量比1:1になるように炭化珪素微粉末に
加えた。Example 1 A 50% xylene solution of polytitanocarbosilane (Tyranocoat varnish type, manufactured by Ube Industries, Ltd.) was added to fine silicon carbide powder so that the weight ratio of polytitanocarbosilane was 1:1.
攪拌器で充分混合した後、これら炭素&陶板にスプレー
塗装し、250℃で1時間乾燥機中に保持して硬化させ
た。After thorough mixing with a stirrer, these carbon and ceramic plates were spray coated and kept in a dryer at 250° C. for 1 hour to harden.
塗膜の厚みは80μであった。The thickness of the coating film was 80μ.
この塗装試料を図に示す水蒸気拡散試験装置にかけた。This painted sample was subjected to the water vapor diffusion test apparatus shown in the figure.
この装置は、内部1にヒーター2によって60℃に、外
部3にヒーター4および冷却器5によって28℃にそれ
ぞれ常時維持された水が入れられており、その境界壁に
塗膜面6を内部(高温側)に向けて試料7が取り付けら
れる。In this device, water is kept at 60°C in the interior 1 by a heater 2, and at 28°C in the exterior 3 by a heater 4 and a cooler 5. Sample 7 is attached facing the high temperature side).
この塗装試料は2100時間経過しても、何等塗膜に異
常が認められなかった。Even after 2100 hours had passed, no abnormality was observed in the coating film of this painted sample.
比較例1〜3
市販の下記3種のプラスチックコーティング剤を70x
20x 5 tの炭素鋼板に塗布し、それぞれに通した
条件で硬化させた。Comparative Examples 1 to 3 The following three types of commercially available plastic coating agents were used at 70x
It was applied to a 20 x 5 t carbon steel plate and cured under the same conditions.
それぞれのコーティング剤の組成、硬化方法および硬化
後の膜厚を下記表に示す。The composition, curing method, and film thickness after curing of each coating agent are shown in the table below.
表
比較例患 比較例1 比較例2 比較例3試
料名 R−I R−2R−3塗膜名称
エポキシ 弗素樹脂 フレークコーティング
コーティング ライニング組成*1
(wt%)
バインダーエポキシ 3弗化エチレ 不飽和ポリ樹
脂(65) ン樹脂(100)エステル樹脂(70
)
フィラー 酸化チタン な し ガラスフしく
35) −り(30)塗布法
スプレー法 スプレー法 刷毛、3度3度塗り
3度塗り 塗り
硬化 常温7日 250℃ 常温7日条
件 放置 1時間 放置膜厚*2
270 350 580(μ)
*1溶剤部分を除く
*2電磁式膜厚計で6個所測定した平均値この試料R−
1、R−2およびR−3について、実施例1と同一条件
で水蒸気拡散試験装置にかけた。Table Comparative Example Comparative Example 1 Comparative Example 2 Comparative Example 3 Sample Name R-I R-2R-3 Coating Film Name
Epoxy fluororesin flake coating
Coating Lining composition *1 (wt%) Binder epoxy Trifluoroethylene Unsaturated poly resin (65) N resin (100) Ester resin (70
) Filler Titanium oxide None Glass Fushiku 35) -ri (30) Application method Spray method Spray method Brush, 3 coats 3 coats Paint curing Room temperature 7 days 250℃ Room temperature 7 days Conditions Leaving 1 hour Leaving film thickness *2
270 350 580 (μ) *1 Excluding the solvent part *2 Average value measured at 6 locations with an electromagnetic film thickness meter This sample R-
Samples No. 1, R-2 and R-3 were subjected to a water vapor diffusion test apparatus under the same conditions as in Example 1.
この結果、試料R−1は170時間で塗膜に脹れを生じ
たく参考写真1)。As a result, sample R-1 showed swelling in the coating film after 170 hours (reference photo 1).
また、試料R−2も170時間で同様な脹れを生じ、試
料R−3は170時間では脹れを生じなかったが、39
0時間で脹れを生じた(参考写真2)。In addition, sample R-2 also caused similar swelling after 170 hours, and sample R-3 did not cause swelling after 170 hours, but 39
Swelling occurred at 0 hours (reference photo 2).
【図面の簡単な説明】
図は本発明にかかる水蒸気拡散防止防食膜を塗布した試
料の水蒸気拡散試験に使用した装置の概要図である。[BRIEF DESCRIPTION OF THE DRAWINGS] The figure is a schematic diagram of an apparatus used for a water vapor diffusion test on a sample coated with a water vapor diffusion prevention anticorrosion film according to the present invention.
Claims (1)
りも高温の水蒸気および/または水分含有物との接触面
に形成され、ポリメタロカルボシランとセラミック粉末
との混合物から成ることを特徴とする水蒸気拡散防止防
食膜。It is formed on the contact surface between a metal and/or non-metallic base material and water vapor and/or a water-containing material whose temperature is higher than the wall surface temperature of the base material, and is characterized by being made of a mixture of polymetallocarbosilane and ceramic powder. An anticorrosive film that prevents water vapor diffusion.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP26284587A JPH01108271A (en) | 1987-10-20 | 1987-10-20 | Corrosion-preventive film which prevent diffusion of water vapor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP26284587A JPH01108271A (en) | 1987-10-20 | 1987-10-20 | Corrosion-preventive film which prevent diffusion of water vapor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH01108271A true JPH01108271A (en) | 1989-04-25 |
Family
ID=17381418
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP26284587A Pending JPH01108271A (en) | 1987-10-20 | 1987-10-20 | Corrosion-preventive film which prevent diffusion of water vapor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH01108271A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010134611A1 (en) * | 2009-05-22 | 2010-11-25 | リンテック株式会社 | Molded object, process for producing same, member for electronic device, and electronic device |
CN104211967A (en) * | 2014-08-14 | 2014-12-17 | 中国科学院过程工程研究所 | Polymetalcarbosilane, and preparation method and application thereof |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5584370A (en) * | 1978-12-22 | 1980-06-25 | Tokushu Muki Zairyo Kenkyusho | Coating composition |
JPS6248773A (en) * | 1985-08-27 | 1987-03-03 | Ube Ind Ltd | Heat-resistant coating material |
-
1987
- 1987-10-20 JP JP26284587A patent/JPH01108271A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5584370A (en) * | 1978-12-22 | 1980-06-25 | Tokushu Muki Zairyo Kenkyusho | Coating composition |
JPS6248773A (en) * | 1985-08-27 | 1987-03-03 | Ube Ind Ltd | Heat-resistant coating material |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010134611A1 (en) * | 2009-05-22 | 2010-11-25 | リンテック株式会社 | Molded object, process for producing same, member for electronic device, and electronic device |
CN102439078A (en) * | 2009-05-22 | 2012-05-02 | 琳得科株式会社 | Molded object, process for producing same, member for electronic device, and electronic device |
JP5704611B2 (en) * | 2009-05-22 | 2015-04-22 | リンテック株式会社 | Molded body, manufacturing method thereof, member for electronic device, and electronic device |
CN104211967A (en) * | 2014-08-14 | 2014-12-17 | 中国科学院过程工程研究所 | Polymetalcarbosilane, and preparation method and application thereof |
CN104211967B (en) * | 2014-08-14 | 2017-05-03 | 中国科学院过程工程研究所 | Polymetalcarbosilane, and preparation method and application thereof |
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