JP5018694B2 - Fill joint material and joint joint construction method - Google Patents
Fill joint material and joint joint construction method Download PDFInfo
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Description
本発明は、タイル間の目地に塗り目地工法により目地詰めされる目地材と、塗り目地工法とに関するものである。 The present invention relates to a joint material for filling joints between tiles by a joint joint construction method, and a joint joint construction method.
タイルを壁面や床面に張り付け施工する場合、タイル同士の間に所定の目地間隔をあけてタイルをモルタルや接着剤で張り付けた後、塗り目地工法によって目地詰めすることが多い。 When tiles are attached to a wall surface or a floor surface, the tiles are often pasted with a mortar or an adhesive with a predetermined joint interval between the tiles, and then the joints are filled by a joint joint method.
なお、塗り目地工法とはスラリー状の目地材料をタイル張り付け面の全面に塗布して塗り伸ばし、目地に充填した後、タイル表面の目地材料を拭き取るようにした目地充填方法である（例えば、下記特許文献２）。 The joint joint method is a joint filling method in which slurry-like joint material is applied to the entire surface of the tile attaching surface, spread and filled, and then the joint material on the tile surface is wiped off (for example, the following) Patent Document 2).
目地材としてエポキシ樹脂をバインダーとしたエポキシ系目地材が広く用いられている（例えば、下記特許文献１）。
エポキシ系塗り目地用目地材の主剤と硬化剤とを混合した場合、この主剤と硬化剤の反応が進むと、親水性は失われ、水拭きすることは不可能となる。特に反応の早い夏季では拭き取り可能時間が短かった。この問題は反応の遅い硬化剤を使用することで解決するが、逆に冬場は硬化が遅くなり過ぎてしまい、タイル面として使用可能となるまで時間がかかる。 When the base material of the epoxy-based joint material and the curing agent are mixed, when the reaction between the base material and the curing agent proceeds, the hydrophilicity is lost and it becomes impossible to wipe with water. The wiping time was particularly short in the summer when the reaction was quick. This problem can be solved by using a slow-acting curing agent, but conversely in winter, the curing is too slow and it takes time until it can be used as a tile surface.
また、エポキシ樹脂およびその硬化剤は比較的高分子のものが多く粘性が高い。特に粘度の温度依存性は高く、練ったときの固さが夏場は最適でも冬場はかなり重い。逆に冬に最適にすると夏場は粘性が低くなりすぎてしまう。 Epoxy resins and their curing agents are relatively high in polymer and have high viscosity. In particular, the viscosity is highly temperature-dependent, and the hardness when kneaded is optimal in summer, but quite heavy in winter. On the other hand, if it is optimized for winter, the viscosity in summer will be too low.
これらの問題は、トルエン等の溶媒を添加することで解決できるが、溶媒が揮発した後、目減り（体積減少）が生じたり、目地の硬度が低くなるというデメリットがある。揮発しにくい溶媒を使用すると目減りは解決するが、目地の硬度はやはり低い。また、残った溶媒が目地から染み出てタイル・石材を汚染する可能性がある。さらに、有機溶媒を使用すると、においやＶＯＣ（揮発性有機溶媒）が作業環境等で問題になる場合がある。 These problems can be solved by adding a solvent such as toluene. However, after the solvent is volatilized, there is a demerit that a decrease in volume (volume reduction) occurs or the hardness of the joint decreases. The use of a solvent that does not volatilize resolves the loss of weight, but the joint hardness is still low. In addition, the remaining solvent may ooze from the joints and contaminate the tiles and stones. Furthermore, when an organic solvent is used, smell and VOC (volatile organic solvent) may become a problem in the working environment.
本発明は、上記従来の問題点を解決し、目地材のタイル施工面への塗布作業が容易になると共に、その拭き取り作業も容易となる塗り目地用目地材と、塗り目地工法とを提供することを目的とする。 The present invention solves the above-mentioned conventional problems, and provides a joint material for a joint joint that facilitates the application work of the joint material to the tile construction surface and also facilitates the wiping work thereof, and a joint joint construction method. For the purpose.
本発明の塗り目地用目地材は、エポキシ樹脂組成物と、該エポキシ樹脂組成物に添加される硬化剤組成物とからなる塗り目地用の目地材において、該エポキシ樹脂組成物と硬化剤組成物との一方に水が添加されており、他方に水硬性材料の粉末が添加されていることを特徴とするものである。 The joint material for a joint according to the present invention is a joint material for a joint composed of an epoxy resin composition and a curing agent composition added to the epoxy resin composition, and the epoxy resin composition and the curing agent composition. And water is added to one of them, and a powder of hydraulic material is added to the other.
本発明の塗り目地工法は、エポキシ樹脂組成物と硬化剤組成物とを混合した後、タイル施工面に対し塗り目地によって目地詰めする塗り目地工法において、該エポキシ樹脂組成物と硬化剤組成物との混合に際し、水を添加して粘性を調整する塗り目地工法であって、該エポキシ樹脂組成物と硬化剤組成物との少なくとも一方に水硬性材料の粉末が添加されていることを特徴とするものである。 The joint joint method of the present invention is the joint joint method in which the epoxy resin composition and the curing agent composition are mixed, and then the tile construction surface is filled with the joint joint, the epoxy resin composition and the curing agent composition, In the case of mixing, a water joint is applied to adjust the viscosity by adding water, characterized in that a powder of a hydraulic material is added to at least one of the epoxy resin composition and the curing agent composition. Is.
本発明の塗り目地用目地材では、エポキシ樹脂組成物及び硬化剤組成物の一方が水を含んでおり、本発明の塗り目地工法では、エポキシ樹脂組成物と硬化剤組成物との混合に際し水を添加する。 In a coated joint joint material of the present invention, hand of the epoxy resin composition and the curing agent composition contains water, a coated joint method of the present invention, upon mixing of the epoxy resin composition and curing agent composition Add water.
従って、エポキシ樹脂組成物と硬化剤組成物とが混合された、これから塗布されようとする塗り目地用目地材にあっては、エポキシ樹脂及び硬化剤と水とのエマルジョンが形成され、目地材の粘性が低下する。また、エマルジョンが形成されると、塗布後、目地材が硬化しつつあるときでも目地材が拭き取られ易いものとなる。 Therefore, in the joint material for joints to be applied, in which the epoxy resin composition and the curing agent composition are mixed, an emulsion of the epoxy resin, the curing agent, and water is formed, and the joint material of the joint material is formed. Viscosity decreases. Moreover, when the emulsion is formed, the joint material is easily wiped off even when the joint material is being cured after application.
このようなことから、本発明によると、目地材のタイル施工面への塗布作業が容易になると共に、その拭き取り作業も容易となる。特に、拭き取り作業について詳述すると、エマルジョン化されることでエポキシ樹脂と硬化剤の反応がある程度進んでも、水と馴染みやすいため、目地詰めしたときの作業可能時間（拭き取りまでの時間）が長くなる。また、水を溶媒としているため、ＶＯＣの発生も少なく出来、樹脂量を減らすことが可能であるためコストダウンにもつながる。さらに、粉末に対する樹脂の割合を少なく出来るため、紫外線などの変色も低減できる。 For this reason, according to the present invention, the application work of the joint material to the tile construction surface becomes easy and the wiping work becomes easy. In particular, when wiping work is described in detail, even if the reaction between the epoxy resin and the curing agent progresses to some extent by emulsification, it is easy to become familiar with water, so the workable time (time until wiping) becomes longer when filling the joint. . Further, since water is used as a solvent, the generation of VOC can be reduced, and the amount of resin can be reduced, leading to cost reduction. Further, since the ratio of the resin to the powder can be reduced, discoloration such as ultraviolet rays can be reduced.
本発明において、エポキシ樹脂組成物及び／又は硬化剤組成物に水硬性材料の粉末を添加した場合、この水硬性材料は、水と反応して水和物を生成させることにより、水の蒸発による目地の体積減少（目地の目減り）を防止（抑制を含む。）することができる。また、水和物の硬度が高いので、目地の硬度が高いものとなる。 In the present invention, when a hydraulic material powder is added to the epoxy resin composition and / or the curing agent composition, the hydraulic material reacts with water to form a hydrate, thereby evaporating water. It is possible to prevent (including suppression) the volume reduction of the joints (decrease of the joints). In addition, since the hardness of the hydrate is high, the joint hardness is high.
以下、本発明についてさらに詳細に説明する。 Hereinafter, the present invention will be described in more detail.
本発明で用いるエポキシ樹脂組成物中のエポキシ樹脂としては、ビスフェノールＡ型、ビスフェノールＦ型等のビスフェノール型エポキシ樹脂、ノボラック型エポキシ樹脂、直鎖状脂肪族エポキシ樹脂等、従来公知の種々のエポキシ樹脂が使用できる。 Examples of the epoxy resin in the epoxy resin composition used in the present invention include various conventionally known epoxy resins such as bisphenol type epoxy resins such as bisphenol A type and bisphenol F type, novolac type epoxy resins, and linear aliphatic epoxy resins. Can be used.
一方、硬化剤組成物中の硬化剤としては、ジエチレントリアミン、トリエチレンテトラミン等の脂肪族アミン、ｍ−フェニレンジアミン、ジアミノジフェニルメタン等の芳香族アミン、無水フタル酸、ヘキサヒドロフタル酸無水物、テトラヒドロフタル酸無水物、ピロメリット酸無水物等の酸無水物、ポリサルファイド、酸アミド、チオコール等が挙げられる。 On the other hand, the curing agent in the curing agent composition includes aliphatic amines such as diethylenetriamine and triethylenetetramine, aromatic amines such as m-phenylenediamine and diaminodiphenylmethane, phthalic anhydride, hexahydrophthalic anhydride, tetrahydrophthalate. Examples thereof include acid anhydrides, acid anhydrides such as pyromellitic acid anhydride, polysulfide, acid amides, and thiocol.
上記のエポキシ樹脂及び硬化剤はそれぞれ水性のものであってもよい。 Each of the epoxy resin and the curing agent may be aqueous.
水性エポキシ樹脂としては、例えば、ビスフェノールＡ型エポキシ樹脂、ノボラック型エポキシ樹脂、ビスフェノールＦ型エポキシ樹脂、臭素化エポキシ樹脂、環式脂肪族エポキシ樹脂等、あるいはこれらをポリエステル樹脂、フェノール樹脂、メラミン樹脂等で変性したもの等が挙げられ、これらのうち水溶型、水分散型等を用いることができる。本発明では、特に、水分散型のエポキシ樹脂が好ましく用いられる。 Examples of aqueous epoxy resins include bisphenol A type epoxy resins, novolac type epoxy resins, bisphenol F type epoxy resins, brominated epoxy resins, cycloaliphatic epoxy resins, and the like, or polyester resins, phenol resins, melamine resins, and the like. Among these, water-soluble type, water-dispersed type and the like can be used. In the present invention, a water-dispersed epoxy resin is particularly preferably used.
水性硬化剤としては、水性アミン化合物を用いることができる。 An aqueous amine compound can be used as the aqueous curing agent.
水性アミン化合物としては、例えば、脂肪族ポリアミン、脂環式ポリアミン、芳香族ポリアミン、ポリアミド、ポリアミドアミン、複素環状アミンなど、またはこれらの変性物等が挙げられ、これらのうち水溶型、水分散型等を用いることができる。本発明では、特に、水分散型のアミン化合物が好ましく用いられる。 Examples of the aqueous amine compound include aliphatic polyamines, alicyclic polyamines, aromatic polyamines, polyamides, polyamidoamines, heterocyclic amines, etc., or modified products thereof. Etc. can be used. In the present invention, a water-dispersed amine compound is particularly preferably used.
主剤、硬化剤には、それぞれ、本発明の効果を阻害しない程度に、エチレン樹脂、酢酸ビニル樹脂、ポリエステル樹脂、アルキッド樹脂、塩化ビニル樹脂、エポキシ樹脂、アクリル樹脂、ウレタン樹脂、シリコーン樹脂、フッ素樹脂、セルロース、ポリビニルアルコール等の樹脂を含有していてもよい。 For the main agent and the curing agent, ethylene resin, vinyl acetate resin, polyester resin, alkyd resin, vinyl chloride resin, epoxy resin, acrylic resin, urethane resin, silicone resin, fluororesin to such an extent that the effects of the present invention are not impaired. Further, it may contain a resin such as cellulose and polyvinyl alcohol.
さらに主剤、硬化剤には、本発明の効果を阻害しない程度に、顔料、骨材、分散剤、粘性調整剤、溶剤、造膜助剤、可塑剤、凍結防止剤、防腐剤、防黴剤、防藻剤、消泡剤、レベリング剤、ｐＨ調整剤、沈降防止剤、たれ防止剤、艶消し剤、紫外線吸収剤、乾燥調整剤、カップリング剤、脱水剤、光安定剤、酸化防止剤、水等の添加剤を含有することもできる。 Furthermore, the main agent and the curing agent include pigments, aggregates, dispersants, viscosity modifiers, solvents, film-forming aids, plasticizers, antifreezing agents, antiseptics, and antifungal agents so long as the effects of the present invention are not impaired. , Anti-algae, antifoaming agent, leveling agent, pH adjuster, anti-settling agent, anti-sagging agent, matting agent, UV absorber, drying adjuster, coupling agent, dehydrating agent, light stabilizer, antioxidant Further, additives such as water can be contained.
顔料としては、例えば、酸化チタン、酸化亜鉛、カーボンブラック、酸化第二鉄（ベンガラ）、クロム酸鉛（モリブデートオレンジ）、黄鉛、黄色酸化鉄、オーカー、群青、コバルトグリーン等の無機系着色顔料、アゾ系、ナフトール系、ピラゾロン系、アントラキノン系、ペリレン系、キナクリドン系、ジスアゾ系、イソインドリノン系、ベンゾイミダゾール系、フタロシアニン系、キノフタロン系等の有機系着色顔料、重質炭酸カルシウム、クレー、カオリン、タルク、沈降性硫酸バリウム、炭酸バリウム、ホワイトカーボン、珪藻土等の体積顔料が挙げられる。 Examples of pigments include inorganic colors such as titanium oxide, zinc oxide, carbon black, ferric oxide (bengala), lead chromate (molybdate orange), yellow lead, yellow iron oxide, ocher, ultramarine, and cobalt green. Pigments, azo, naphthol, pyrazolone, anthraquinone, perylene, quinacridone, disazo, isoindolinone, benzimidazole, phthalocyanine, quinophthalone, and other organic color pigments, heavy calcium carbonate, clay , Volumetric pigments such as kaolin, talc, precipitated barium sulfate, barium carbonate, white carbon, and diatomaceous earth.
骨材としては、珪砂が好適であるが、本発明では、骨材の少なくとも一部として水硬性材料の粉末を用いるのが好ましい。水硬性材料としては、セメント、石膏などが好適である。セメントとしては普通セメント、アルミナセメントなど各種のものを用いることができる。 As the aggregate, quartz sand is suitable, but in the present invention, it is preferable to use a hydraulic material powder as at least a part of the aggregate. As the hydraulic material, cement, gypsum and the like are suitable. Various types of cement such as ordinary cement and alumina cement can be used.
この水硬性材料は、水分と反応して水和物を発生させ、目地の目減りを防止できると共に、目地の硬度を高める。 This hydraulic material reacts with moisture to generate a hydrate, thereby preventing the joint from being lost and increasing the joint hardness.
本発明の一態様では、主剤（エポキシ樹脂組成物）と硬化剤（硬化剤組成物）の一方又は双方に水を添加しておく。本発明の別の態様では、主剤と硬化剤とを混合するときに水を添加する。 In one embodiment of the present invention, water is added to one or both of the main agent (epoxy resin composition) and the curing agent (curing agent composition). In another aspect of the present invention, water is added when mixing the main agent and the curing agent.
水の添加量は、塗布しようとする調合物が目的とする適正粘性となるように気温等を勘案して決定するのが好ましい。勿論、攪拌して粘性をチェックしながら徐々に水を添加してもよい。 The amount of water added is preferably determined in consideration of the temperature and the like so that the preparation to be applied has the desired appropriate viscosity. Of course, water may be gradually added while stirring to check the viscosity.
本発明に従ってタイル施工面に塗り目地を施す場合、主剤（エポキシ樹脂組成物）と硬化剤と骨材とを混合してなる、水を含む調合物をタイル施工面に塗布し、拭き取りを行えばよく、この塗り目地工法の手順自体は従来の塗り目地工法と同じである。上記の混合を行うに際し、骨材を主剤及び硬化剤の少なくとも一方に混合しておき、その後、主剤と硬化剤とを混合するのが好ましい。なお、骨材は現場にて混合されてもよく、市販される主剤又は硬化剤中に混合されていてもよい。 When applying a joint to the tile construction surface according to the present invention, if a preparation containing water, which is a mixture of the main agent (epoxy resin composition), the curing agent and the aggregate, is applied to the tile construction surface and wiped off, Well, the procedure itself of this joint method is the same as the conventional joint method. In performing the above mixing, it is preferable to mix the aggregate with at least one of the main agent and the curing agent, and then mix the main agent and the curing agent. The aggregate may be mixed in the field, or may be mixed in a commercially available main agent or curing agent.
骨材とエポキシ樹脂組成物および硬化剤組成物との混合比率は、骨材１００重量部に対し、エポキシ樹脂組成物と硬化剤組成物の合量で２０〜４０重量部程度が好ましい。骨材の一部としての水硬性材料粉末の量は水硬性材料以外の骨材１００重量部に対し５〜２５重量部程度が好ましい。 The mixing ratio of the aggregate, the epoxy resin composition, and the curing agent composition is preferably about 20 to 40 parts by weight as the total amount of the epoxy resin composition and the curing agent composition with respect to 100 parts by weight of the aggregate. The amount of the hydraulic material powder as a part of the aggregate is preferably about 5 to 25 parts by weight with respect to 100 parts by weight of the aggregate other than the hydraulic material.
以下、実施例及び比較例について説明する。なお、以下の実施例では硬化剤に予め水を添加した。 Hereinafter, examples and comparative examples will be described. In the following examples, water was added to the curing agent in advance.
以下の実施例及び比較例で用いた材料は次の通りである。 The materials used in the following examples and comparative examples are as follows.
主剤 ：ビスフェノールＡ型エポキシ樹脂（ジャパンエポキシレジン株式会社製ＪＥＲシリーズ８２８）
硬化剤：ポリアミドアミン系硬化剤（早硬化タイプ）（エアープロダクツジャパン株式会社製ＳＵＮＭＩＤＥ３３５）
ポリアミドアミン系硬化剤（遅硬化タイプ）（エアープロダクツジャパン株式会社製ＳＵＮＭＩＤＥ７６ＴＫ）
水系硬化剤（変性脂肪族ポリアミン系硬化剤）（ジャパンエポキシレジン株式会社製ＪＥＲキュアシリーズ８０６０）
骨材 ：７号珪砂及び８号珪砂
酸化チタン粉末（平均粒径３μｍ）
普通セメント
Main agent: Bisphenol A type epoxy resin (JER series 828 manufactured by Japan Epoxy Resin Co., Ltd.)
Curing agent: Polyamidoamine curing agent (fast curing type) (SUNMIDE 335 manufactured by Air Products Japan Co., Ltd.)
Polyamideamine curing agent (slow curing type) (SUNMIDE 76TK manufactured by Air Products Japan Ltd.)
Water-based curing agent (modified aliphatic polyamine-based curing agent) (JER Cure Series 8060 manufactured by Japan Epoxy Resin Co., Ltd.)
Aggregate: No. 7 silica sand and No. 8 silica sand
Titanium oxide powder (average particle size 3μm)
Ordinary cement
［実施例１〜２、比較例１〜３］
表１に示す配合割合にて主剤、硬化剤及び骨材を混合して調合物を調合した。混合手順は、まず主剤と骨材を十分に混合し、次いで硬化剤を添加して混合するようにした。
[Examples 1-2, Comparative Examples 1-3]
The formulation was prepared by mixing the main agent, curing agent and aggregate at the blending ratio shown in Table 1. In the mixing procedure, first, the main agent and the aggregate were thoroughly mixed, and then the curing agent was added and mixed.
この調合物をタイル施工面に塗布した後、水を含ませたスポンジによって拭き取り、目地詰めした。 After this formulation was applied to the tile construction surface, it was wiped off with a sponge soaked with water and filled with joints.
タイルの大きさは２９５×２９５×９ｍｍ、目地間隔は５ｍｍである。施工時の気温は２５℃であった。 The size of the tile is 295 × 295 × 9 mm, and the joint spacing is 5 mm. The temperature at the time of construction was 25 ° C.
施工性及び仕上がりの評価結果を表１に示す。 Table 1 shows the evaluation results of workability and finish.
以上の実施例及び比較例から明らかな通り、実施例１，２の目地材は、塗り易くしかも拭き取り易く、作業可能時間も十分に長い。また、外観も良好である。 As is clear from the above Examples and Comparative Examples, the joint materials of Examples 1 and 2 are easy to apply and wipe off, and the workable time is sufficiently long. Also, the appearance is good.
普通セメントを添加した実施例１，２では、エポキシ樹脂の配合が比較例２，３より少ないにもかかわらず、硬化した目地の硬度も十分に高い。 In Examples 1 and 2 to which ordinary cement was added, the hardness of the cured joint was sufficiently high although the amount of the epoxy resin was less than that in Comparative Examples 2 and 3.
Claims (2)
該エポキシ樹脂組成物と硬化剤組成物との一方に水が添加されており、他方に水硬性材料の粉末が添加されていることを特徴とする塗り目地用目地材。 In a joint material for a joint joint comprising an epoxy resin composition and a curing agent composition added to the epoxy resin composition,
A joint material for joints, wherein water is added to one of the epoxy resin composition and the curing agent composition, and a powder of a hydraulic material is added to the other.
該エポキシ樹脂組成物と硬化剤組成物との混合に際し、水を添加して粘性を調整する塗り目地工法であって、
該エポキシ樹脂組成物と硬化剤組成物との少なくとも一方に水硬性材料の粉末が添加されていることを特徴とする塗り目地工法。 After mixing the epoxy resin composition and the curing agent composition, after applying to the tile construction surface, in the joint joint construction method to fill the joint by wiping,
In the mixing of the epoxy resin composition and the curing agent composition, water is added to adjust the viscosity ,
A paint joint method, wherein a powder of a hydraulic material is added to at least one of the epoxy resin composition and the curing agent composition .
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