JP2002012482A - Method of reinforcing cut part of ceramic substrate - Google Patents
Method of reinforcing cut part of ceramic substrateInfo
- Publication number
- JP2002012482A JP2002012482A JP2000188320A JP2000188320A JP2002012482A JP 2002012482 A JP2002012482 A JP 2002012482A JP 2000188320 A JP2000188320 A JP 2000188320A JP 2000188320 A JP2000188320 A JP 2000188320A JP 2002012482 A JP2002012482 A JP 2002012482A
- Authority
- JP
- Japan
- Prior art keywords
- sealer
- base material
- ceramic
- ceramic base
- ceramic substrate
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/46—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with organic materials
- C04B41/48—Macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/0045—Polymers chosen for their physico-chemical characteristics
- C04B2103/0056—Thermohardening polymers
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/29—Frost-thaw resistance
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この出願の発明は、窯業系基
材切削部の補強方法に関するものである。さらに詳しく
は、この出願の発明は、窯業系建材物の製造において、
窯業系基材の切削によって生じる脆弱層を補強し、窯業
系建材物の耐候性を向上させる窯業系基材切削部の補強
方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of reinforcing a ceramic substrate cut portion. More specifically, the invention of this application is used in the production of ceramic building materials.
The present invention relates to a method for reinforcing a ceramic base material cutting portion that reinforces a brittle layer generated by cutting a ceramic base material and improves the weather resistance of a ceramic building material.
【０００２】[0002]
【従来の技術】窯業系建材物は、住宅等の外壁材、屋根
材等の外装材をはじめ、天井材等の内装材にも広く用い
られており、表面に柄、目地等の凹凸模様、塗装等が施
された、多種多様の意匠を有するものが提供されてい
る。これらの窯業系建材物の製造においては、通常、セ
メントや無機フィラー等を主成分とする原料スラリーを
抄造により半硬化シートとし、プレス機で脱水成形して
柄、目地等の凹凸模様を付与し、養生、乾燥して窯業系
基材が得られる。得られた窯業系基材は、ダイヤモンド
刃物等により、用途に応じた大きさや形状に刃物切削さ
れ、さらに意匠性を高めたり、防水性、耐凍害性等の耐
候性を付与したりするために、塗装が施される。2. Description of the Related Art Ceramic building materials are widely used for exterior materials such as houses, exterior materials such as roof materials, and interior materials such as ceiling materials. Painted and the like having a wide variety of designs are provided. In the production of these ceramic building materials, usually, a raw material slurry mainly composed of cement, inorganic filler, and the like is formed into a semi-cured sheet by papermaking, and is subjected to dehydration molding with a press machine to impart an uneven pattern such as a pattern and joint. After curing and drying, a ceramic substrate is obtained. The obtained ceramic base material is cut into a size and shape according to the application with a diamond cutting tool, etc., to further enhance the designability and to provide weatherability such as waterproofness, frost resistance, etc. , Painted.
【０００３】窯業系基材端部の切削方法には、端部を垂
直に切削する切断加工と、窯業系建材物間の接合部の強
度を高めるために厚み方向を凹凸状や階段状に切削し、
隣接する窯業系建材物間の接合部でこれらの凹凸や階段
どうしがはめ込まれるようにする実加工がある。しか
し、いずれの方法においても、窯業系基材の切削部で
は、プレス機により圧縮固化された表層よりも密度の低
い内層が表面に現れるため、強度が低いという問題があ
った。とくに、実加工によって得られる実部ではその切
削部表面の密度の低さが顕著であり、強度のみならず、
防水性も著しく低いという問題があった。[0003] There are two methods of cutting the ceramic base material edge: a cutting process in which the end is cut vertically, and a cutting process in which the thickness direction is uneven or stepped in order to increase the strength of the joint between the ceramic building materials. And
There is actual processing to make these irregularities and stairs fit into the joints between adjacent ceramic building materials. However, in any of the methods, there is a problem that the strength of the cut portion of the ceramic base material is low because an inner layer having a lower density than the surface layer compressed and solidified by the press machine appears on the surface. In particular, in the real part obtained by actual processing, the density of the surface of the cut part is remarkably low, and not only strength but also
There was a problem that the waterproofness was remarkably low.
【０００４】また、刃物切削工程においては、窯業系基
材の切削部に切削粉が残存しやすく、しばしば切削部周
辺に脆弱層ができるという問題があった。このような脆
弱層では、窯業系基材の剥離や割れが生じやすく、窯業
系基材全体の強度が低下したり、美麗さが損なわれた
り、あるいは切削部が破損したりし、窯業系建材物の生
産性を低下させる要因の一つであった。[0004] Further, in the blade cutting process, there is a problem that cutting powder tends to remain in the cutting portion of the ceramic base material, and a fragile layer often forms around the cutting portion. In such a fragile layer, the ceramic base material tends to peel or crack, and the strength of the entire ceramic base material is reduced, the beauty is impaired, or the cutting portion is damaged, and the ceramic building material This was one of the factors that reduced product productivity.
【０００５】また、脆弱層は、その存在を確認すること
が困難なため、脆弱層を有する窯業系基材が塗装を施さ
れ、窯業系建材物として出荷されてしまう恐れもあり、
そのような場合には、施工時や使用中に塗膜の剥離や窯
業系建材物端部の破損等の欠陥が生じるという点で、問
題が大きかった。Further, since it is difficult to confirm the existence of the fragile layer, there is a possibility that the ceramic base material having the fragile layer is coated and shipped as a ceramic building material.
In such a case, the problem was serious in that defects such as peeling of the coating film and breakage of the ceramic building material end portion occurred during construction or use.
【０００６】さらに、脆弱層を有する窯業系建材物で
は、降雨、凍結、湿気等により塗膜の剥離が生じやすく
なるという問題もあった。そこで、これまでに、切削部
に窯業系建材物において塗装下地として使用されるシー
ラーを塗布し、切削部を補強する方法が提案されてき
た。Further, in the case of a ceramic building material having a fragile layer, there has been a problem that the coating film is apt to be peeled off due to rainfall, freezing, moisture and the like. Therefore, a method of applying a sealer, which is used as a coating base in ceramic building materials, to the cutting portion to reinforce the cutting portion has been proposed.
【０００７】[0007]
【発明が解決しようとする課題】しかしながら、その後
の検討により、上記提案技術にも改善の余地が残されて
いることが明らかになった。つまり、上述のとおり、窯
業系基材の切削部表面が低密度となっているために、窯
業系基材の切削部にシーラーを塗布してもシーラーが窯
業系基材の切削部表面に留まらず、深層まで含浸されて
しまう、シーラーの窯業系基材への密着性が悪いなどの
問題が生じ、十分な補強性が発揮されなかったのであ
る。このことは、例えば１０μｌのシーラーが、通常の
窯業系基材表面では１０〜２０秒間浸透してシーラー層
を形成するのに対して、実部では６０秒間以上浸透し、
シーラー層を形成しないという実験結果からも示され
た。そのため、シーラーを塗布しても、長期間の使用に
よる窯業系基材の劣化が防げなかったのが実情である。
このような劣化は、とくに耐凍害性の低さ、すなわち、
凍害による塗膜の剥離という点において顕著であった。However, subsequent studies have revealed that there is still room for improvement in the above proposed technology. In other words, as described above, since the surface of the cut portion of the ceramic base material has a low density, even if the sealer is applied to the cut portion of the ceramic base material, the sealer remains on the cut portion surface of the ceramic base material. However, problems such as impregnation to a deep layer and poor adhesion of the sealer to the ceramic base material occurred, and sufficient reinforcement was not exhibited. This means that, for example, 10 μl of the sealer penetrates for 10 to 20 seconds on the surface of a normal ceramic base material to form a sealer layer, whereas the real part penetrates for 60 seconds or more,
It was also shown from the experimental result that no sealer layer was formed. Therefore, even if a sealer is applied, deterioration of the ceramic base material due to long-term use cannot be prevented.
Such deterioration is particularly low in frost resistance, that is,
This was remarkable in that the coating film was peeled off by frost damage.
【０００８】したがって、窯業系基材の切削時に生じる
脆弱層を補強し、耐候性、とくに耐凍害性を高めるため
の有効な方法が望まれてきたのである。Therefore, an effective method for reinforcing a fragile layer generated during cutting of a ceramic substrate and improving weather resistance, especially frost damage resistance, has been desired.
【０００９】[0009]
【課題を解決するための手段】そこで、この出願の発明
は、上記の課題を解決するものとして、第１には、窯業
系建材物の製造において、重量平均分子量が８０００〜
４７０００の高分子を含有するシーラーを窯業系基材の
切削部に施すことを特徴とする窯業系基材切削部の補強
方法を提供する。Therefore, the invention of the present application solves the above-mentioned problems. First, in the production of ceramic building materials, the weight average molecular weight is 8,000 to 8,000.
Provided is a method for reinforcing a ceramic base material cut portion, comprising applying a sealer containing 47000 polymers to the ceramic base material cut portion.
【００１０】第２には、この出願の発明は、シーラー中
の高分子が硬化性樹脂である窯業系基材切削部の補強方
法をも提供する。また、この出願の発明は、第３には、
前記シーラーが溶剤系塗料である窯業系基材切削部の補
強方法を、および第４には、前記シーラーの粘度が１０
０〜５００ｍＰａＳである窯業系基材切削部の補強方法
をも提供する。Secondly, the invention of this application also provides a method of reinforcing a ceramic base material cut portion in which the polymer in the sealer is a curable resin. Thirdly, the invention of this application is:
A method for reinforcing a ceramic base material cutting part in which the sealer is a solvent-based paint, and fourthly, the sealer has a viscosity of 10
The present invention also provides a method for reinforcing a ceramic-based substrate cut portion of 0 to 500 mPaS.
【００１１】[0011]
【発明の実施の形態】この出願の発明は、前記のとおり
の特徴を有するものであるが、以下、実施例を示しつ
つ、発明の実施の形態についてさらに詳しく説明する。BEST MODE FOR CARRYING OUT THE INVENTION The invention of this application has the features as described above. Hereinafter, embodiments of the invention will be described in more detail with reference to examples.
【００１２】この出願の発明の窯業系基材切削部の補強
方法では、窯業系基材の切削部に重量平均分子量が８０
００〜４７０００の高分子を含有するシーラーを施すこ
とによって、窯業系建材物の製造において、窯業系基材
を切削した際に、切削部周辺に生じる脆弱層を補強する
ことができる。In the method for reinforcing a ceramic substrate according to the invention of the present application, a weight average molecular weight of 80 is applied to the ceramic substrate.
By applying a sealer containing a polymer of 00 to 47000, in the production of a ceramic building material, a fragile layer generated around a cut portion when a ceramic base material is cut can be reinforced.
【００１３】シーラー中の高分子の重量平均分子量が８
０００未満の場合は、窯業系基材へのシーラーの含浸性
が高まり、窯業系基材の切削部表面にシーラー層が形成
されないため、窯業系基材が十分に補強されず、好まし
くない。また、シーラー中の高分子の、重量平均分子量
が４７０００より大きいものでは、シーラーが窯業系基
材に全く浸透しなくなるため、シーラー層と窯業系基材
の密着性が低下し、塗膜がシーラー層とともに剥離しや
すくなり、好ましくない。The weight average molecular weight of the polymer in the sealer is 8
When it is less than 000, the impregnating property of the sealer into the ceramic base material is increased, and the sealer layer is not formed on the surface of the cut portion of the ceramic base material. If the polymer in the sealer has a weight average molecular weight of more than 47000, the sealer will not penetrate the ceramic base material at all, so the adhesion between the sealer layer and the ceramic base material will be reduced, and the coating film will not be sealed. It is easy to peel off together with the layer, which is not preferable.
【００１４】このとき、シーラーに含有される高分子は
どのようなものであってもよいが、とくに窯業系基材の
補強性を高めるためには、硬化性樹脂よりなる高分子で
あることが好ましい。例えばアクリル樹脂系、ウレタン
樹脂系、エポキシ樹脂系、弗素樹脂系等の有機高分子
や、シリコン樹脂系の高分子などが例示される。中で
も、ウレタン樹脂系、エポキシ樹脂系およびアクリルシ
リコン樹脂系の硬化性樹脂よりなる高分子を含むシーラ
ーを用いることが好ましい。At this time, the polymer contained in the sealer may be any polymer. In order to enhance the reinforcing property of the ceramic base material, it is preferable that the polymer be made of a curable resin. preferable. For example, an organic polymer such as an acrylic resin, a urethane resin, an epoxy resin, and a fluorine resin, and a silicone resin polymer are exemplified. Among them, it is preferable to use a sealer containing a polymer made of a urethane resin-based, epoxy resin-based, or acrylic silicone resin-based curable resin.
【００１５】この出願の発明の窯業系基材切削部の補強
方法においては、シーラーは、上記のような高分子が溶
剤中で溶液あるいは分散液となっている種々の溶剤系塗
料とすることにより、溶剤量によって粘度を調整しやす
くなり、好ましい。このような溶剤系塗料において、溶
剤は、様々な有機溶剤であってもよいし、水であっても
よく、２種類以上の有機溶剤の混合溶剤や、水と有機溶
剤の混合溶媒であってもよい。もちろん、これらの溶剤
系塗料には、高分子と溶剤以外に、顔料や乳化剤等の充
填材が添加されていてもよい。In the method for reinforcing a ceramic substrate cut portion of the invention of the present application, the sealer is made of various solvent-based paints in which the above-mentioned polymer is a solution or dispersion in a solvent. The viscosity is easily adjusted by the amount of the solvent, which is preferable. In such a solvent-based coating, the solvent may be various organic solvents, may be water, may be a mixed solvent of two or more organic solvents, or may be a mixed solvent of water and an organic solvent. Is also good. Needless to say, fillers such as pigments and emulsifiers may be added to these solvent-based paints in addition to the polymer and the solvent.
【００１６】さらに、この出願の発明の窯業系基材切削
部の補強方法においては、上記のとおりのシーラーの粘
度は、１００〜５００ｍＰａＳであることが好ましい。
シーラーの粘度が１００ｍＰａＳ未満の場合には、シー
ラーの窯業系基材の切削部表面への浸透が大きくなり、
窯業系基材切削部表面にシーラー層が形成されないため
に、窯業系基材切削部付近の脆弱層が補強されない。ま
た、窯業系基材表面にシーラー層が形成されないことに
より、シーラーと塗膜の密着性が確保されず、塗膜が脆
弱層とともに剥離しやすくなる。したがって、シーラー
の粘度は１００ｍＰａＳ以上とする必要がある。一方、
シーラーの粘度が５００ｍＰａＳより高い場合には、シ
ーラーが窯業系基材に含浸されないため、シーラー層と
窯業系基材の密着性が悪くなり、塗膜がシーラー層とと
もに剥離しやすくなる。したがって、シーラーの粘度
は、５００ｍＰａＳ以下とする必要がある。Furthermore, in the method for reinforcing a ceramic substrate cut portion of the invention of the present application, the viscosity of the sealer as described above is preferably 100 to 500 mPaS.
If the viscosity of the sealer is less than 100 mPaS, penetration of the sealer into the cut surface of the ceramic substrate increases,
Since the sealer layer is not formed on the surface of the ceramic substrate cut portion, the fragile layer near the ceramic substrate cut portion is not reinforced. Further, since the sealer layer is not formed on the ceramic base material surface, the adhesion between the sealer and the coating film is not ensured, and the coating film is easily peeled off together with the fragile layer. Therefore, the viscosity of the sealer needs to be 100 mPaS or more. on the other hand,
When the viscosity of the sealer is higher than 500 mPaS, the sealer is not impregnated into the ceramic base material, so that the adhesion between the sealer layer and the ceramic base material is deteriorated, and the coating film is easily peeled off together with the sealer layer. Therefore, the viscosity of the sealer needs to be 500 mPaS or less.
【００１７】そして、この出願の発明の以上のとおりの
窯業系基材の補強方法は、建築用の外装材や内装材とし
ての窯業系建材物の製造において、全工程の少なくとも
一部を構成する窯業系基材の切削工程で発生する脆弱層
を補強し、塗装を施した際に、塗膜の高い密着性を長期
にわたり保持し、窯業系建材物の耐候性を高めるために
効果的に採用されることになる。The method for reinforcing a ceramic base material as described above of the invention of this application constitutes at least a part of the entire process in the production of ceramic building materials as exterior materials and interior materials for construction. Effectively used to reinforce the fragile layer generated in the cutting process of ceramic base materials and to maintain high adhesion of the coating film for a long time when applied, and to enhance the weather resistance of ceramic building materials Will be done.
【００１８】以下、実施例を示し、この発明の実施の形
態についてさらに詳しく説明する。もちろん、この発明
は以下の例に限定されるものではなく、細部については
様々な態様が可能であることは言うまでもない。Hereinafter, examples will be shown, and embodiments of the present invention will be described in more detail. Of course, the present invention is not limited to the following examples, and it goes without saying that various aspects are possible in detail.
【００１９】[0019]
【実施例】実施例１〜４ 窯業系基材の剥離試験におけ
るシーラーの効果 （実施例１）セメント、珪砂、補強繊維等の原料をブレ
ンドし、水を加えて混合したスラリーを抄造して窯業系
基材生板とした後、乾燥、養生を経て比重１．２の窯業
系基材を得た。EXAMPLES Examples 1-4 In peeling test of ceramic base material
That sealer effect (Example 1) were blended cement, silica sand, the raw materials such as reinforcing fibers, after the ceramic base material raw plate by papermaking a slurry was added and mixed with water, drying, through curing specific gravity 1 2 was obtained.
【００２０】この窯業系基材の端部を切削し、切削部に
重量平均分子量４６０００のアクリルウレタン樹脂を含
むシーラー（マルチシーラーＡ、昭和高分子製：粘度＝
５００ｍＰａＳ）を、１０〜３０ｇ／ｍ2／ｄｒｙ塗布
した。シーラー層が形成された後、さらにその上にアク
リル樹脂系塗料（Ｖセラン＃３００−９、大日本塗料
製）を塗布した。An end of this ceramic base material is cut, and a sealer containing a urethane resin having a weight average molecular weight of 46,000 (multi-sealer A, manufactured by Showa Kobunshi; viscosity =
(500 mPaS) was applied at 10 to 30 g / m 2 / dry. After the sealer layer was formed, an acrylic resin-based paint (V-Seran # 300-9, manufactured by Dainippon Paint) was further applied thereon.
【００２１】このサンプルをＡＳＴＭ−Ｂ法にしたがっ
て凍害試験機中で２００サイクルの凍害試験にかけ、試
験後の塗膜密着性をＪＩＳ５４００．７．４にしたがっ
て試験した。 （実施例２）実施例１と同様の方法で窯業系基材を作成
し、切削した。The sample was subjected to a 200-cycle frost test in a frost tester according to the ASTM-B method, and the adhesion of the coating film after the test was tested according to JIS5400.7.4. (Example 2) A ceramic substrate was prepared and cut in the same manner as in Example 1.
【００２２】切削部に重量平均分子量４７０００のアク
リルウレタン樹脂を含むシーラー（マルチシーラ−Ｄ、
昭和高分子製：粘度＝３００ｍＰａＳ）を塗布した。さ
らに、得られたシーラー層の上にアクリル樹脂系塗料
（Ｖセラン＃３００−９、大日本塗料製）を塗布した。A sealer (Multi Sealer-D, containing an acrylic urethane resin having a weight average molecular weight of 47000 in the cutting portion)
(Manufactured by Showa Polymer: viscosity = 300 mPaS). Further, an acrylic resin-based paint (V-Seran # 300-9, manufactured by Dainippon Paint) was applied on the obtained sealer layer.
【００２３】このサンプルについて、実施例１と同様の
方法で凍害試験にかけ、試験後の塗膜密着性試験を行な
った。 （実施例３）実施例１と同様の方法で窯業系基材を得
た。The sample was subjected to a frost damage test in the same manner as in Example 1, and a coating film adhesion test after the test was performed. Example 3 A ceramic substrate was obtained in the same manner as in Example 1.
【００２４】この窯業系基材を切削し、切削部に重量平
均分子量１８０００のアクリルシリコン樹脂が溶剤中に
分散されたシーラー（ＩＭコート５３１ＭＤ（溶剤
系）、関西ペイント製：粘度＝３００ｍＰａＳ）を塗布
した。さらにそのシーラー層の上にアクリル樹脂系塗料
（Ｖセラン＃３００−９、大日本塗料製）を塗布した。This ceramic base material is cut, and a sealer (IM coat 531MD (solvent type), manufactured by Kansai Paint: viscosity = 300 mPaS) in which an acrylic silicone resin having a weight average molecular weight of 18,000 is dispersed in a solvent is applied to the cut portion. did. Further, an acrylic resin-based paint (V-Seran # 300-9, manufactured by Dainippon Paint) was applied on the sealer layer.
【００２５】このサンプルについて、実施例１と同様の
方法で、凍害試験を行い、試験後の塗膜密着性を測定し
た。 （実施例４）実施例１と同様の方法で窯業系基材を作成
し、切削した後、切削部に重合平均分子量８０００のア
クリルウレタン樹脂を含むシーラー（ルリール３５５、
日本ペイント製：粘度＝１００ｍＰａＳ）を塗布した。
さらにその上にアクリル樹脂系塗料（Ｖセラン＃３００
−９、大日本塗料製）を塗布した。This sample was subjected to a frost damage test in the same manner as in Example 1, and the adhesion of the coating film after the test was measured. (Example 4) A ceramic base material was prepared and cut in the same manner as in Example 1, and the cut portion was made to contain a sealer (acrylol 355, acrylic reel) containing an acrylic urethane resin having a polymerization average molecular weight of 8000.
Nippon Paint: viscosity = 100 mPaS) was applied.
Acrylic resin paint (V-Seran # 300)
-9, manufactured by Dainippon Paint).
【００２６】このサンプルについて、実施例１と同様の
方法で、凍害試験を行い、試験後のサンプルの塗膜密着
性を測定した。比較例１〜２ 従来法による窯業系基材の補強効果 （比較例１）実施例１と同様に窯業系基材を作成し、端
部を切削した。This sample was subjected to a frost damage test in the same manner as in Example 1, and the adhesion of the sample after the test was measured. Comparative Examples 1 and 2 Reinforcement effect of ceramic base material by conventional method (Comparative Example 1) A ceramic base material was prepared in the same manner as in Example 1, and the end was cut.
【００２７】窯業系基材の端部に重量平均分子量５２０
００の高分子を有するアクリル樹脂系シーラー（ＫＳＹ
−１３２、近代化学製：粘度＝６００ｍＰａＳ）を塗布
し、さらに、そのシーラー層上にアクリル樹脂系塗料
（Ｖセラン＃３００−９、大日本塗料製）を塗布した。A weight average molecular weight of 520 was added to the end of the ceramic base material.
Acrylic resin-based sealer having a high molecular weight of 00 (KSY
-132, manufactured by Hyundai Chemical Co., Ltd .: viscosity = 600 mPaS), and an acrylic resin-based paint (V-Seran # 300-9, manufactured by Dainippon Paint) was further applied on the sealer layer.
【００２８】このサンプルについて、実施例１と同様の
方法で、凍害試験を行い、試験後のサンプルの塗膜密着
性を測定した。 （比較例２）実施例１と同様に窯業系基材を作成し、端
部を切削した。This sample was subjected to a frost damage test in the same manner as in Example 1, and the adhesion of the coating film of the sample after the test was measured. (Comparative Example 2) A ceramic substrate was prepared in the same manner as in Example 1, and the ends were cut.
【００２９】窯業系基材の端部に重量平均分子量６００
０の高分子を有するアクリルウレタン樹脂系シーラー
（ナトコ製：粘度＝８０ｍＰａＳ）を塗布し、得られた
シーラー層上にアクリル樹脂系塗料（Ｖセラン＃３００
−９、大日本塗料製）を塗布した。A weight average molecular weight of 600 was added to the end of the ceramic base material.
Acrylic urethane resin-based sealer having a high molecular weight of 0 (Natco: viscosity = 80 mPaS) is applied, and an acrylic resin-based paint (V-Selan # 300) is applied on the obtained sealer layer.
-9, manufactured by Dainippon Paint).
【００３０】このサンプルについて、実施例１と同様の
方法で、凍害試験を行い、試験後のサンプルの塗膜密着
性を測定した。実施例１〜４および比較例１〜２の結果
を表１に示した。This sample was subjected to a frost damage test in the same manner as in Example 1, and the film adhesion of the sample after the test was measured. Table 1 shows the results of Examples 1 to 4 and Comparative Examples 1 and 2.
【００３１】[0031]
【表１】 [Table 1]
【００３２】表より、重量平均分子量が８０００〜４７
０００の高分子を有し、粘度が１００〜５００ｍＰａＳ
のシーラーを用いた窯業系基材において、凍害試験後も
高い塗膜密着性が確保されることが確認された。とくに
重量平均分子量が８０００〜１８０００の高分子を含有
し、粘度が１００〜３００ｍＰａＳのシーラーを用いた
とき、窯業系基材における塗膜剥離がほとんど見られ
ず、十分実用に供することができ、塗膜の耐凍害性が向
上することが明らかになった。As shown in the table, the weight average molecular weight was 8,000 to 47.
Having a viscosity of 100 to 500 mPaS
It was confirmed that high adhesion of the coating film was ensured even after the frost damage test in the ceramic substrate using the sealer. In particular, when a sealer having a weight average molecular weight of 8000 to 18000 containing a polymer and a viscosity of 100 to 300 mPaS is used, almost no peeling of the coating film on the ceramic base material is observed, and the coating material can be sufficiently practically used. It was found that the frost resistance of the membrane was improved.
【００３３】一方、重量平均分子量が８０００未満の高
分子や４７０００より大きな高分子を有し、粘度が５０
０ｍＰａより高いシーラーや１００ｍＰａＳより粘度の
低いシーラーを用いた場合には、凍害試験後に塗膜の剥
離が生じやすく、実用に供し得なかった。On the other hand, a polymer having a weight average molecular weight of less than 8000 or a polymer having a weight average molecular weight of
When a sealer higher than 0 mPa or a sealer having a viscosity lower than 100 mPaS was used, peeling of the coating film was liable to occur after the frost damage test, which was not practical.
【００３４】[0034]
【発明の効果】以上詳しく説明した通り、この出願の発
明の窯業系基材切削部の補強方法によって、窯業系基材
の切削部が補強され、シーラーと塗膜の密着性が向上す
る。これにより、耐候性、とくに耐凍害性が高くなり、
窯業系建材物の長期使用においても塗膜剥離が防止され
る。As described in detail above, the method for reinforcing a ceramic substrate cut portion of the present invention reinforces the ceramic substrate cut portion and improves the adhesion between the sealer and the coating film. This increases the weather resistance, especially the frost resistance,
Even in the long-term use of ceramic building materials, peeling of the coating film is prevented.
【００３５】さらには、窯業系基材切削時に生じる脆弱
層が補強されるため、窯業系建材物の生産性も向上す
る。Further, since the fragile layer generated during cutting of the ceramic base material is reinforced, the productivity of the ceramic building material is improved.
Claims (4)
分子量が８０００〜４７０００の高分子を含有するシー
ラーを窯業系基材の切削部に施すことを特徴とする窯業
系基材切削部の補強方法。1. A method of manufacturing a ceramic building material, comprising applying a sealer containing a polymer having a weight average molecular weight of 8,000 to 47000 to the cutting portion of the ceramic base material. Method.
請求項１の窯業系基材切削部の補強方法。2. The method according to claim 1, wherein the polymer in the sealer is a curable resin.
たは２のいずれかの窯業系基材切削部の補強方法。3. The method according to claim 1, wherein the sealer is a solvent-based paint.
Ｓである請求項１ないし３のいずれかの窯業系基材切削
部の補強方法。4. The sealer has a viscosity of 100 to 500 mPa.
The method for reinforcing a ceramic-based substrate cut portion according to any one of claims 1 to 3, wherein S is S.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000188320A JP4560179B2 (en) | 2000-06-22 | 2000-06-22 | Reinforcing method for ceramic base cutting parts |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000188320A JP4560179B2 (en) | 2000-06-22 | 2000-06-22 | Reinforcing method for ceramic base cutting parts |
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| Publication Number | Publication Date |
|---|---|
| JP2002012482A true JP2002012482A (en) | 2002-01-15 |
| JP4560179B2 JP4560179B2 (en) | 2010-10-13 |
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Cited By (2)
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|---|---|---|---|---|
| JP2006088119A (en) * | 2004-09-27 | 2006-04-06 | Kubota Matsushitadenko Exterior Works Ltd | Production method of inorganic plate |
| US7462540B2 (en) | 2004-02-06 | 2008-12-09 | Panasonic Corporation | Silicon carbide semiconductor device and process for producing the same |
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| US7462540B2 (en) | 2004-02-06 | 2008-12-09 | Panasonic Corporation | Silicon carbide semiconductor device and process for producing the same |
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| JP4598467B2 (en) * | 2004-09-27 | 2010-12-15 | ケイミュー株式会社 | Manufacturing method of inorganic board |
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|---|---|
| JP4560179B2 (en) | 2010-10-13 |
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