JPH01223191A - Composition having excellent far infrared-emission characteristic and paint composed thereof - Google Patents
Composition having excellent far infrared-emission characteristic and paint composed thereofInfo
- Publication number
- JPH01223191A JPH01223191A JP4940588A JP4940588A JPH01223191A JP H01223191 A JPH01223191 A JP H01223191A JP 4940588 A JP4940588 A JP 4940588A JP 4940588 A JP4940588 A JP 4940588A JP H01223191 A JPH01223191 A JP H01223191A
- Authority
- JP
- Japan
- Prior art keywords
- weight
- parts
- ceramic powder
- liquid composition
- coating film
- 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
- 239000000203 mixture Substances 0.000 title claims abstract description 31
- 239000003973 paint Substances 0.000 title claims description 4
- 239000007788 liquid Substances 0.000 claims abstract description 31
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000000919 ceramic Substances 0.000 claims abstract description 26
- 239000000843 powder Substances 0.000 claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 13
- 125000001183 hydrocarbyl group Chemical group 0.000 claims abstract description 11
- 230000005855 radiation Effects 0.000 claims description 18
- 235000012239 silicon dioxide Nutrition 0.000 claims description 12
- 125000004432 carbon atom Chemical group C* 0.000 claims description 9
- 239000008247 solid mixture Substances 0.000 claims description 9
- 239000000126 substance Substances 0.000 claims description 5
- 125000003545 alkoxy group Chemical group 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 abstract description 28
- 238000000576 coating method Methods 0.000 abstract description 28
- 239000003960 organic solvent Substances 0.000 abstract description 13
- 238000002156 mixing Methods 0.000 abstract description 8
- 230000001476 alcoholic effect Effects 0.000 abstract description 6
- 239000002245 particle Substances 0.000 abstract description 3
- 229910052845 zircon Inorganic materials 0.000 abstract description 3
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 abstract description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052804 chromium Inorganic materials 0.000 abstract description 2
- 229910052742 iron Inorganic materials 0.000 abstract description 2
- 229910052749 magnesium Inorganic materials 0.000 abstract description 2
- 229910052759 nickel Inorganic materials 0.000 abstract description 2
- 229910052719 titanium Inorganic materials 0.000 abstract description 2
- 238000001354 calcination Methods 0.000 abstract 1
- 238000013329 compounding Methods 0.000 abstract 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 19
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 12
- 238000001035 drying Methods 0.000 description 10
- 238000010438 heat treatment Methods 0.000 description 9
- CWAFVXWRGIEBPL-UHFFFAOYSA-N ethoxysilane Chemical compound CCO[SiH3] CWAFVXWRGIEBPL-UHFFFAOYSA-N 0.000 description 7
- 238000005336 cracking Methods 0.000 description 6
- 238000006116 polymerization reaction Methods 0.000 description 6
- 239000003054 catalyst Substances 0.000 description 4
- 238000006460 hydrolysis reaction Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- ZMYXZXUHYAGGKG-UHFFFAOYSA-N propoxysilane Chemical compound CCCO[SiH3] ZMYXZXUHYAGGKG-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- WGRZHLPEQDVPET-UHFFFAOYSA-N 2-methoxyethoxysilane Chemical compound COCCO[SiH3] WGRZHLPEQDVPET-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000008199 coating composition Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 2
- 239000000080 wetting agent Substances 0.000 description 2
- ZNQVEEAIQZEUHB-UHFFFAOYSA-N 2-ethoxyethanol Chemical compound CCOCCO ZNQVEEAIQZEUHB-UHFFFAOYSA-N 0.000 description 1
- VXEGSRKPIUDPQT-UHFFFAOYSA-N 4-[4-(4-methoxyphenyl)piperazin-1-yl]aniline Chemical compound C1=CC(OC)=CC=C1N1CCN(C=2C=CC(N)=CC=2)CC1 VXEGSRKPIUDPQT-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 1
- 125000005907 alkyl ester group Chemical group 0.000 description 1
- 239000003945 anionic surfactant Substances 0.000 description 1
- 239000002518 antifoaming agent Substances 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- ZZHNUBIHHLQNHX-UHFFFAOYSA-N butoxysilane Chemical compound CCCCO[SiH3] ZZHNUBIHHLQNHX-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003093 cationic surfactant Substances 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 229910000423 chromium oxide Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- -1 for example Substances 0.000 description 1
- 238000001879 gelation Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 1
- ARYZCSRUUPFYMY-UHFFFAOYSA-N methoxysilane Chemical compound CO[SiH3] ARYZCSRUUPFYMY-UHFFFAOYSA-N 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 239000005049 silicon tetrachloride Substances 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 239000002904 solvent Substances 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
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Paints Or Removers (AREA)
Abstract
Description
本発明は、遠赤外線放射特性に優れた材料を得るのに好
適に用いられる液体組成物に関し、特に遠赤外線放射特
性に優れた塗膜等の固体組成物を 得るのに好適な塗
料に関するものである。The present invention relates to a liquid composition suitable for obtaining a material with excellent far-infrared radiation properties, and particularly to a coating material suitable for obtaining a solid composition such as a coating film with excellent far-infrared radiation properties. be.
遠赤外線を被加熱体に放射すると、被加熱体の加熱が促
進することが知られている。最近、これを利用した技術
が種々開発され、遠赤外線放射特性に優れた材料（以下
、「遠赤外線放射体」という、）を装備した加熱乾燥機
器が多数出現している。
ところで、遠赤外線放射体としては一般的にはセラミ・
ツクスが用いられている。セラミックスよりなる遠赤外
線放射体は、放射特性が半永久的に不変で、耐薬品性に
強゛い長所が有る反面、例えダ加熱乾燥機器等の内壁に
塗布することが困難であるという欠点があった。
そこで、加熱乾燥機器等の内壁に塗布し易いようにする
ため、遠赤外線放射体を粉末化し、ノ４インダー溶液中
に分散させた塗料組成物が提案されている（特開昭５６
−６１７８２号公報及び特開昭６２−２５６８７５号公
報）、これらの塗料組成物に係る発明は、得られた塗膜
の耐クラツク性及び耐剥離性を向上させることを目的と
している。It is known that radiating far infrared rays to a heated object accelerates the heating of the heated object. Recently, various technologies utilizing this have been developed, and a large number of heating drying devices equipped with materials having excellent far-infrared radiation characteristics (hereinafter referred to as "far-infrared radiators") have appeared. By the way, ceramics and far-infrared rays are generally used as far-infrared radiators.
Tsukusu is used. Far-infrared radiators made of ceramics have the advantage of semi-permanently unchanging radiation characteristics and strong chemical resistance, but have the disadvantage that it is difficult to apply them to the inner walls of heating drying equipment, etc. Ta. Therefore, in order to make it easier to apply to the inner walls of heat-drying equipment, a coating composition has been proposed in which a far-infrared radiator is powdered and dispersed in a no-4 inder solution (Japanese Patent Laid-Open No. 56
61782 and JP-A-62-256875), the inventions relating to these coating compositions are aimed at improving the crack resistance and peeling resistance of the resulting coating film.
しかしながら、加熱乾燥機器等の内壁に塗布して得られ
る塗膜には、耐クラツク性や耐剥離性だけでなく透明性
に優れていることが要求される。
塗膜が不透明であると、塗膜中に存在するセラミックス
粉末から放射される遠泳外線を塗膜が遮断若しくは吸収
し、被加熱体に到達する遠赤外線エネルギーを減少させ
、熱効率を低下させるからである。
そこで、本発明は加熱乾燥機器等の内壁に塗布して得ら
れる塗膜を、耐クラツク性や耐剥離性はもとより、透明
性に優れたものとすることを目的としてなされたもので
ある。However, the coating film obtained by coating on the inner wall of a heat drying device, etc. is required to have excellent transparency as well as crack resistance and peeling resistance. If the coating film is opaque, the coating film will block or absorb the external radiation emitted from the ceramic powder present in the coating film, reducing far-infrared energy reaching the heated object and reducing thermal efficiency. be. Therefore, the present invention was made with the object of providing a coating film obtained by coating the inner wall of a heating drying device, etc., with excellent transparency as well as crack resistance and peeling resistance.
即ち、本発明はアルコール系有機溶剤中に、水及び下記
一般式（１）で表されるアルコキシシラン（以下、単に
「アルコキシシラン」と言う。）が溶解すると共に遠赤
外線放射特性に優れたセラミックス粉末が分散している
ことを特徴とする液体組成物に関するものであり、この
液体組成物を塗料として用いることにより、透明性に優
れ且つ遠赤外線放射特性に優れた塗膜を得ることができ
るものである。
なお、一般式（Ｉ）は次のとおりである。
（式中、Ｒは炭化水素基又はアルコキシ（炭素数１〜３
）炭化水素基であって、炭化水素基の炭素数は１〜６で
ある。また、ｎは０〜１２である。）また、上記の液体
組成物を硬化させて得られる固体組成物の組成は、二酸
化珪素皮膜（Ｓｉ０ｇ膜）と、遠赤外線放射特性に優れ
たセラミックス粉末とを基本的に含有し、不純物として
種々の物質を含んでいる。
本発明に用いるアルコール系有機溶剤としては、エタノ
ール、イソプロパツール、エチルセロソルブ等が単独で
又は混合して用いられる。
本発明に用いるアルコキシシランは、ケイ酸のアルキル
エステル誘導体である。具体的な製造方法としては、例
えば１モルの四塩化ケイ素と４モルのアルカノール又は
アルコキシアルカノールとを反応させてテトラアルコキ
シシランを得る方法である。このテトラアルコキシシラ
ンをそのまま用いてもよいが、シラン濃度を上げるため
部分加水分解して、テトラアルコキシシランを重合し２
〜１２量体のアルコキシシランを得、それを用いてもよ
い、また、種々の重合度のアルコキシシランを混合して
用いてもよい０本発明において、好適な重合度は３〜６
である。
本発明に用いるアルコキシシランの具体例としては、炭
化水素基の炭素数が２のエトキシシラン。
炭素数３のプロポキシシラン、炭素数４のブトキシシラ
ンが用いられる。また、アルコキシ炭化水素基において
アルコキシとしてメトキシを用い且つ炭化水素基の炭素
数が２の２−メトキシエトキシシランが用いられる。こ
の中でも特にエトキシシランを用いるのが最も好ましい
、これは、炭化水素基の炭素数が少ないほど加水分解速
度が速いためである。また、炭素数が１のメトキシシラ
ンは毒性があるため、取り扱いの点で若干問題がある。
エトキシシランは、無色又は微黄色の透明の液体である
。比重は重合度が増すに従って大きくなり、０．９〜１
．３程度の範囲の値である。粘度も重合度が増すに従っ
て大きくなり、０．６ｃｐｓ〜１５．０ｃｐｓ程度の範
囲の値である。
本発明において用いる水は、アルコキシシランを加水分
解させるためのものである。アルコキシシランが加水分
解すると、樹脂状の二酸化珪素を生成する。アルコキシ
シランと水とは互いに溶解しないので、両者を直接混合
すると、水濃度が局部的に高くなり、部分的にゲル化（
二酸化珪素の生成）が進行し、透明な二酸化珪素皮膜が
得られない傾向となる。従って、本発明においては水と
アルコキシシランとに可溶なアルコール系有機溶剤に、
両者を溶解させ均一に混合する必要がある。
アルコール系有機溶剤中にアルコキシシランと水とを溶
解させる際、加水分解反応を促進させるために触媒を溶
剤中に添加するのが好ましい。触媒を用いなければ、加
水分解反応が極めて緩慢となるからである。触媒として
は、各種の酸又は塩基が用いられるが、−船釣には酸、
特に塩酸を用いるのが好ましい。
本発明に用いる遠赤外線放射特性に優れたセラミックス
粉末としては、アルミナ、シリカ、ジルコンを主成分と
して、チタン、コバルト、クロム、ニッケル、マンガン
、鉄、マグネシウム等の酸化物を配合して、焼成して得
られたセラミックス粉末が用いられる。粉末の大きさは
、液体中に均一に分散し易い程度がよく、具体的には粒
径１μ〜０．０５μ程度が好ましい。
本発明、に係る液体組成物の配合割合は以下のとおりで
あるのが好ましい。
アルコキシシランは、アルコール系有機溶剤１００重量
部に対して、３０〜５００重量部程度が好ましい。水は
、アルコール系有機溶剤１００重量部に対して、２〜７
０重量部程度が好ましい、また、必要により添加する触
媒は、アルコール系有機溶剤１００重量部に対して、０
．０２〜０．２量部程度が好ましい。セラミックス粉末
は、アルコール系有機溶剤１００重量部に対して、ｌＯ
〜２０００重量部程度が好ましい。
本発明に係る液体組成物を調整する方法としては、例え
ばアルコキシシランと水とをアルコール系有機溶剤に溶
解させた有機溶液Ａ液を調整する。
一方、このＡ液とは別にアルコール系有機溶剤に遠赤外
線放射特性に優れたセラミックス粉末を添加して、充分
に混合攪拌してセラミックス粉末が均一に分散した有機
溶液Ｂ液を調整する。その後、Ａ液とＢ液とを混合して
本発明に係る液体組成物が得られる。
本発明に係る液体組成物中には、所望により種々の物質
が添加される０例えば、アルコキシシランと水との加水
分解反応により生成した二酸化珪素が、凝集して沈降す
ることを防止するため、沈降防止剤や湿潤剤を添加する
ことができる。沈降防止剤としては、例えばアスベスト
誘導体等を用いることができる。湿潤剤としては、陰イ
オン性界面活性剤又は陽イオン性界面活性剤等が用いら
れる。また、液体組成物が泡立つのを防止するため、シ
リコーン油等の消泡剤を用いることもできる。
本発明に係る液体組成物は、特に塗料として用いるのに
適している。従って、加熱乾燥機器等の内壁に塗布した
後、加熱処理等を施して硬化させて透明性に優れた塗膜
を得ることができる。
本発明に係る液体組成物は、アルコール系有機溶剤を蒸
発させることにより、硬化する。硬化させて得られた塗
膜等の固体組成物は、基本的には二酸化珪素皮膜とセラ
ミックス粉末とよりなっている。具体的には、セラミッ
クス粉末を包み込み或いはセラミックス粉末間の間隙を
埋める形で、二酸化珪素皮膜が形成されている。That is, the present invention provides a ceramic material in which water and an alkoxysilane represented by the following general formula (1) (hereinafter simply referred to as "alkoxysilane") are dissolved in an alcohol-based organic solvent, and which has excellent far-infrared radiation characteristics. This relates to a liquid composition characterized by dispersing powder, and by using this liquid composition as a coating material, a coating film with excellent transparency and far-infrared radiation characteristics can be obtained. It is. The general formula (I) is as follows. (In the formula, R is a hydrocarbon group or alkoxy (having 1 to 3 carbon atoms)
) A hydrocarbon group, the number of carbon atoms in the hydrocarbon group is 1 to 6. Moreover, n is 0-12. ) Furthermore, the composition of the solid composition obtained by curing the above liquid composition basically contains a silicon dioxide film (Si0g film) and a ceramic powder having excellent far-infrared radiation characteristics, and contains various impurities. contains substances. As the alcoholic organic solvent used in the present invention, ethanol, isopropanol, ethyl cellosolve, etc. can be used alone or in combination. The alkoxysilane used in the present invention is an alkyl ester derivative of silicic acid. A specific manufacturing method is, for example, a method in which 1 mol of silicon tetrachloride and 4 mol of alkanol or alkoxyalkanol are reacted to obtain tetraalkoxysilane. This tetraalkoxysilane may be used as it is, but in order to increase the silane concentration, it is partially hydrolyzed and the tetraalkoxysilane is polymerized.
~12-mer alkoxysilane may be obtained and used, or alkoxysilanes of various degrees of polymerization may be mixed and used. In the present invention, the preferred degree of polymerization is 3 to 6.
It is. A specific example of the alkoxysilane used in the present invention is ethoxysilane in which the hydrocarbon group has 2 carbon atoms. Propoxysilane having 3 carbon atoms and butoxysilane having 4 carbon atoms are used. Further, 2-methoxyethoxysilane in which methoxy is used as the alkoxy in the alkoxy hydrocarbon group and the hydrocarbon group has 2 carbon atoms is used. Among these, it is most preferable to use ethoxysilane, because the hydrolysis rate is faster as the number of carbon atoms in the hydrocarbon group is smaller. Furthermore, since methoxysilane having one carbon number is toxic, there are some problems in its handling. Ethoxysilane is a colorless or slightly yellow transparent liquid. The specific gravity increases as the degree of polymerization increases, and ranges from 0.9 to 1.
．． The value is in the range of about 3. The viscosity also increases as the degree of polymerization increases, and is in the range of about 0.6 cps to 15.0 cps. The water used in the present invention is for hydrolyzing alkoxysilane. When alkoxysilanes are hydrolyzed, they produce resinous silicon dioxide. Alkoxysilane and water do not dissolve in each other, so if you mix them directly, the water concentration will locally increase, resulting in partial gelation (
(formation of silicon dioxide) progresses, and a transparent silicon dioxide film tends not to be obtained. Therefore, in the present invention, an alcohol-based organic solvent that is soluble in water and alkoxysilane,
Both must be dissolved and mixed uniformly. When dissolving alkoxysilane and water in an alcohol-based organic solvent, it is preferable to add a catalyst to the solvent in order to accelerate the hydrolysis reaction. This is because if a catalyst is not used, the hydrolysis reaction will be extremely slow. Various acids or bases are used as catalysts, but for boat fishing, acids,
In particular, it is preferable to use hydrochloric acid. The ceramic powder with excellent far-infrared radiation properties used in the present invention is made of alumina, silica, and zircon as main components, mixed with oxides such as titanium, cobalt, chromium, nickel, manganese, iron, and magnesium, and fired. Ceramic powder obtained by The size of the powder should be such that it can be easily dispersed uniformly in the liquid, and specifically, the particle size is preferably about 1 μm to 0.05 μm. The blending ratio of the liquid composition according to the present invention is preferably as follows. The alkoxysilane is preferably about 30 to 500 parts by weight per 100 parts by weight of the alcoholic organic solvent. Water is 2 to 7 parts by weight per 100 parts by weight of alcoholic organic solvent.
About 0 parts by weight is preferable, and the amount of the catalyst added if necessary is 0 parts by weight per 100 parts by weight of the alcohol-based organic solvent.
．． The amount is preferably about 0.02 to 0.2 parts by weight. Ceramic powder is lO to 100 parts by weight of alcohol-based organic solvent.
About 2000 parts by weight is preferable. As a method for preparing the liquid composition according to the present invention, for example, an organic solution A in which alkoxysilane and water are dissolved in an alcoholic organic solvent is prepared. Separately from this liquid A, a ceramic powder having excellent far-infrared radiation properties is added to an alcohol-based organic solvent, and mixed and stirred thoroughly to prepare an organic solution liquid B in which the ceramic powder is uniformly dispersed. Thereafter, liquid A and liquid B are mixed to obtain a liquid composition according to the present invention. In the liquid composition according to the present invention, various substances may be added as desired. For example, in order to prevent silicon dioxide produced by the hydrolysis reaction of alkoxysilane and water from agglomerating and settling, Anti-settling agents and wetting agents can be added. As the anti-settling agent, for example, asbestos derivatives can be used. As the wetting agent, an anionic surfactant or a cationic surfactant is used. Moreover, in order to prevent the liquid composition from foaming, an antifoaming agent such as silicone oil can also be used. The liquid composition according to the invention is particularly suitable for use as a paint. Therefore, after being applied to the inner wall of a heat drying device or the like, a coating film with excellent transparency can be obtained by applying heat treatment or the like to harden it. The liquid composition according to the present invention is cured by evaporating the alcohol-based organic solvent. A solid composition such as a coating film obtained by curing basically consists of a silicon dioxide film and ceramic powder. Specifically, a silicon dioxide film is formed to enclose the ceramic powder or fill in the gaps between the ceramic powders.
実施例１
下記の配合割合による液体組成物を調整した。
エトキシシラン（平均５量体） １００重量部エ
タノール ５０重量部水
１０重量部塩酸（ＩＮ）
１重量部遠赤外線放射特性に
優れたセラミックス粉末２００重量部
ここで、エトキシシラン（平均５量体）は、重合度の平
均が５のものである。これは、エトキシシラン（平均５
量体）の総重量に対して、５ｉｎｔの重量が約４０重量
％であった。また、遠赤外線放射特性に優れたセラミッ
クス粉末は、ジルコン６５重量部、酸化チタン１５重量
部、二酸化マンガン１３重量部、酸化第二鉄５重量部１
、酸化クロム２重量部を混合して焼成して得られたセラ
ミックスで、粒径は０．１μのものである。なお、以下
の実施例においても、これと同様のセラミックス粉末を
用いた。
この液体組成物を、脱脂を完了した厚さ０．１３閣のＪ
ＩＳ Ａ−１１００のアルミニウム薄板に塗布し、常温
で二日間放置して、塗膜を得た。このようにして得られ
た塗膜は、透明性に優れ且つ耐熱性、耐剥離性、耐クラ
ツク性に優れたものであった。
実施例２
下記の配合割合による液体組成物を調整した。
テトラエトキシシラン １００重量部エタノ
ール ５０重量部水
１８重量部塩酸（ＩＮ）
１重量部遠赤外線放射特性に優れた
セラミックス粉末５００重量部
ここて、テトラエトキシシランの総重量に対して、Ｓｉ
ｎｇの重量は約２８．８重量％であった。
この液体組成物を用いて、実施例１と同様の方法で塗膜
を得た結果、この塗膜は透明性に優れ且つ耐熱性、耐剥
離性、耐クラツク性に優れたものであった。
実施例３
下記の配合割合による液体組成物を調整した。
プロポキシシラン（平均５量体）１００重量部エタノー
ル ５０重量部水
５重量部塩酸（ＩＮ）
１重量部遠赤外線放射特性に優れたセラ
ミックス粉末１００重量部
ここて、プロポキシシラン（平均５量体）は、重合度の
平均が５のものである。これは、プロポキシシラン（平
均５１体）の総重量に対して、５ｉＯｔの重量が約３５
重量％であった。
この液体組成物を用いて、実施例１と同様の方法で塗膜
を得た結果、この塗膜は透明性に優れ且つ耐熱性、耐剥
離性、耐クラツク性に優れたものであった。
実施例４
下記の配合割合による液体組成物を調整した７２−メト
キシエトキシシラン １００重量部エタノール
５０重量部水
８重量部塩酸（ＩＮ）
１重量部遠赤外線放射特性に優れたセラミッ
クス粉末８０重量部
二こで、２−メトキシエトキシシランの総重量に対して
、Ｓｉｎｇの重量は約１８重量％であった。
この液体組成物を用いて、実施例１と同様の方法で塗膜
を得た結果、この塗膜は透明性に優れ且つ耐熱性、耐剥
離性、耐クラツク性に優れたものであった。
実施例５
下記の配合割合による液体組成物を調整した。
エトキシシラン（平均５量体）１００重量部エタノール
１７０重量部水
８重量部塩酸（ＩＮ）
１重量部遠赤外線放射特性に優れたセラ
ミックス粉末１０００重量部
この液体組成物を用いて、実施例１と同様の方法で塗膜
を得た結果、この塗膜は透明性に優れ且つ耐熱性、耐剥
離性、耐クラツク性に優れたものであった。Example 1 A liquid composition was prepared with the following blending ratio. Ethoxysilane (average pentamer) 100 parts by weight Ethanol 50 parts by weight Water
10 parts by weight hydrochloric acid (IN)
1 part by weight 200 parts by weight of ceramic powder with excellent far-infrared radiation properties Here, the ethoxysilane (average pentamer) has an average degree of polymerization of 5. This is ethoxysilane (average 5
The weight of 5 int was about 40% by weight with respect to the total weight of the sample. Ceramic powder with excellent far-infrared radiation properties includes 65 parts by weight of zircon, 15 parts by weight of titanium oxide, 13 parts by weight of manganese dioxide, 5 parts by weight of ferric oxide, and 1 part by weight of ferric oxide.
It is a ceramic obtained by mixing and firing 2 parts by weight of chromium oxide, and the particle size is 0.1μ. Note that the same ceramic powder was used in the following examples as well. This liquid composition was added to a J of 0.13 cm thick after degreasing.
It was applied to a thin aluminum plate of IS A-1100 and left at room temperature for two days to obtain a coating film. The coating film thus obtained had excellent transparency, heat resistance, peeling resistance, and cracking resistance. Example 2 A liquid composition was prepared with the following blending ratio. Tetraethoxysilane 100 parts by weight Ethanol 50 parts by weight Water
18 parts by weight hydrochloric acid (IN)
1 part by weight 500 parts by weight of ceramic powder with excellent far-infrared radiation properties, based on the total weight of tetraethoxysilane
The weight of ng was about 28.8% by weight. A coating film was obtained using this liquid composition in the same manner as in Example 1, and the coating film had excellent transparency, heat resistance, peeling resistance, and cracking resistance. Example 3 A liquid composition was prepared with the following blending ratio. Propoxysilane (average pentamer) 100 parts by weight Ethanol 50 parts by weight Water
5 parts by weight hydrochloric acid (IN)
1 part by weight 100 parts by weight of ceramic powder with excellent far-infrared radiation properties The propoxysilane (average pentamer) has an average degree of polymerization of 5. This means that the weight of 5iOt is approximately 35% compared to the total weight of propoxysilane (51 pieces on average).
% by weight. A coating film was obtained using this liquid composition in the same manner as in Example 1, and the coating film had excellent transparency, heat resistance, peeling resistance, and cracking resistance. Example 4 72-methoxyethoxysilane 100 parts by weight ethanol prepared by preparing a liquid composition with the following blending ratio
50 parts by weight water
8 parts by weight hydrochloric acid (IN)
With 1 part by weight and 80 parts by weight of ceramic powder having excellent far-infrared radiation properties, the weight of Sing was about 18% by weight based on the total weight of 2-methoxyethoxysilane. A coating film was obtained using this liquid composition in the same manner as in Example 1, and the coating film had excellent transparency, heat resistance, peeling resistance, and cracking resistance. Example 5 A liquid composition was prepared with the following blending ratio. Ethoxysilane (average pentamer) 100 parts by weight Ethanol 170 parts by weight Water
8 parts by weight hydrochloric acid (IN)
1 part by weight 1000 parts by weight of ceramic powder with excellent far-infrared radiation properties A coating film was obtained in the same manner as in Example 1 using this liquid composition. As a result, this coating film had excellent transparency, heat resistance, It had excellent peeling resistance and cracking resistance.
以上説明したように、本発明に係る液体組成物を塗布し
て得られる塗膜等の固体組成物は、透明性に優れた二酸
化珪素皮膜にセラミックス粉末が包み込まれた状態とな
っているため、セラミックス粉末から放射される遠赤外
線が遮断されたり又は吸収されたりすることが少ない、
従って、この塗膜等の固体組成物を内壁に具えた加熱乾
燥機器等によって、被加熱物等を加熱乾燥すると、遠赤
外線が動車よ（被加熱物等に到達する。依って、被加熱
物の加熱乾燥が動車よく行われ、熱効率の低下を防止し
うるという効果を奏する。
更に、本発明に係る塗膜等の固体組成物は、無機物質で
ある二酸化珪素皮膜を具備しているので、耐熱性が良好
であり、高温度に加熱しても固体組成物が溶融したり軟
化することがなく、汎用的に各種の加熱乾燥機器等に使
用できるという効果をも奏する。
また、本発明に係る固体組成物には二酸化珪素皮膜が存
在するので、アルミニウム薄板等の担体との密着性に優
れ且つ衝撃を加えてもクランクが発生しにくい。従って
、加熱乾燥機器等の内壁面に塗布して得られる塗膜は剥
がれにく（且つクラックが発生しにくいので、破損や損
傷が少なく、加熱乾燥機器等を長期に亙って良好に使用
しろるという効果を特徴するAs explained above, the solid composition such as a coating film obtained by applying the liquid composition according to the present invention is in a state in which ceramic powder is encapsulated in a highly transparent silicon dioxide film. Far infrared rays emitted from ceramic powder are rarely blocked or absorbed.
Therefore, when an object to be heated is heated and dried using a heating drying device or the like having a solid composition such as a paint film on the inner wall, far-infrared rays reach the object to be heated, etc. This has the effect that heating drying is carried out well and a decrease in thermal efficiency can be prevented.Furthermore, since the solid composition such as the coating film according to the present invention includes a silicon dioxide film, which is an inorganic substance, It has good heat resistance, and the solid composition does not melt or soften even when heated to high temperatures, and has the effect that it can be used for general purposes in various heating drying devices. Since such a solid composition has a silicon dioxide film, it has excellent adhesion to a carrier such as an aluminum thin plate and is unlikely to crack even when subjected to impact. The resulting coating film is resistant to peeling (and cracking), resulting in less breakage and damage, allowing for long-term use of heating drying equipment, etc.
Claims (3)
I ）で表されるアルコキシシランが溶解すると共に遠
赤外線放射特性に優れたセラミックス粉末が分散してい
ることを特徴とする液体組成物。 一般式（ I ）； ▲数式、化学式、表等があります▼（ I ） （式中、Ｒは炭化水素基又はアルコキシ（炭素数１〜３
）炭化水素基であって、炭化水素基の炭素数は１〜６で
ある。また、ｎは０〜１２である。）(1) Water and the following general formula (
A liquid composition characterized by dissolving an alkoxysilane represented by I) and dispersing ceramic powder having excellent far-infrared radiation characteristics. General formula (I); ▲Mathematical formulas, chemical formulas, tables, etc.▼(I) (In the formula, R is a hydrocarbon group or alkoxy (1 to 3 carbon atoms)
) A hydrocarbon group, the number of carbon atoms in the hydrocarbon group is 1 to 6. Moreover, n is 0-12. )
ラミックス粉末とを含有することを特徴とする固体組成
物。(3) A solid composition characterized by containing a silicon dioxide film and a ceramic powder having excellent far-infrared radiation characteristics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63049405A JP2720387B2 (en) | 1988-03-02 | 1988-03-02 | Liquid composition and paint excellent in far-infrared radiation characteristics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63049405A JP2720387B2 (en) | 1988-03-02 | 1988-03-02 | Liquid composition and paint excellent in far-infrared radiation characteristics |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01223191A true JPH01223191A (en) | 1989-09-06 |
| JP2720387B2 JP2720387B2 (en) | 1998-03-04 |
Family
ID=12830135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63049405A Expired - Lifetime JP2720387B2 (en) | 1988-03-02 | 1988-03-02 | Liquid composition and paint excellent in far-infrared radiation characteristics |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2720387B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4130902A1 (en) * | 1990-09-24 | 1992-03-26 | Seonwoo Co | DISTANT INFRARED RADIANT MATERIAL |
| JP2009152536A (en) * | 2007-08-17 | 2009-07-09 | Shinshu Univ | Circuit board of electronic apparatus assuring highly efficient heat radiation, and electronic controller, computer system, electrical home appliance, and industrial apparatus product including the same |
| WO2010055620A1 (en) * | 2008-11-12 | 2010-05-20 | 日東電工株式会社 | Thermally conductive composition and manufacturing method therefor |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101416508B1 (en) * | 2012-09-21 | 2014-07-09 | 주식회사 미지나노텍 | Functionality coatings using composite ceramic and menufacturing method the coatings and products coated with the coatings |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61192771A (en) * | 1985-02-21 | 1986-08-27 | Taiheiyo Randamu Kk | Ceramic coating agent mainly composed of silicon carbide |
| JPS6349406A (en) * | 1986-08-19 | 1988-03-02 | Sumitomo Bakelite Co Ltd | Manufacture of laminated sheet for printing circuit |
| JPH01155122A (en) * | 1987-12-10 | 1989-06-19 | Matsushita Electric Ind Co Ltd | Cooking apparatus |
-
1988
- 1988-03-02 JP JP63049405A patent/JP2720387B2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61192771A (en) * | 1985-02-21 | 1986-08-27 | Taiheiyo Randamu Kk | Ceramic coating agent mainly composed of silicon carbide |
| JPS6349406A (en) * | 1986-08-19 | 1988-03-02 | Sumitomo Bakelite Co Ltd | Manufacture of laminated sheet for printing circuit |
| JPH01155122A (en) * | 1987-12-10 | 1989-06-19 | Matsushita Electric Ind Co Ltd | Cooking apparatus |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4130902A1 (en) * | 1990-09-24 | 1992-03-26 | Seonwoo Co | DISTANT INFRARED RADIANT MATERIAL |
| JP2009152536A (en) * | 2007-08-17 | 2009-07-09 | Shinshu Univ | Circuit board of electronic apparatus assuring highly efficient heat radiation, and electronic controller, computer system, electrical home appliance, and industrial apparatus product including the same |
| WO2010055620A1 (en) * | 2008-11-12 | 2010-05-20 | 日東電工株式会社 | Thermally conductive composition and manufacturing method therefor |
| JP2010116456A (en) * | 2008-11-12 | 2010-05-27 | Nitto Denko Corp | Thermally conductive composition and method for producing the same |
| CN102112575A (en) * | 2008-11-12 | 2011-06-29 | 日东电工株式会社 | Thermally conductive composition and manufacturing method therefor |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2720387B2 (en) | 1998-03-04 |
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