JP2008303379A - Epoxy resin composition - Google Patents

Epoxy resin composition Download PDF

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JP2008303379A
JP2008303379A JP2008089734A JP2008089734A JP2008303379A JP 2008303379 A JP2008303379 A JP 2008303379A JP 2008089734 A JP2008089734 A JP 2008089734A JP 2008089734 A JP2008089734 A JP 2008089734A JP 2008303379 A JP2008303379 A JP 2008303379A
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epoxy resin
resin composition
polyalkylene oxide
silyl group
fine powder
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Tetsuya Ono
哲哉 小野
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Aica Kogyo Co Ltd
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Aica Kogyo Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an epoxy resin composition, which ensures high thixotropic property by including fine powder silica and silyl group terminal polyalkylene oxide resin, and enables visual measurement by setting viscoelastic characteristic value as follows. <P>SOLUTION: The epoxy resin composition comprises fine powder silica and a silyl group terminal polyalkylene oxide resin as a thixotropic property imparting agent. The composition has loss elastic modulus of viscoelastic characteristics of 1,400 Pa or more and phase difference δ of 15° or less. The fine powder silica is hydrophilic. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、エポキシ樹脂のチクソトロピー付与剤として微粉末シリカとシリル基末端ポリアルキレンオキサイド樹脂を含む建築補修用注入エポキシ樹脂組成物に関する。   The present invention relates to an infusion epoxy resin composition for building repair containing finely divided silica and a silyl group-terminated polyalkylene oxide resin as a thixotropy imparting agent for an epoxy resin.

建築物の補修にJISA6024の建築補修用注入エポキシ樹脂が使われる。補修対象の状況に応じて、低粘度形、中粘度形、高粘度形が使い分けられる。一般的に高粘度形注入材はモルタル、タイルなどの浮き、ひび割れで、空隙が大きなものに使用される。前記規格では接着性、硬化収縮、加熱変化、物性等は規定されているものの、高粘度形は粘度ではなく、3mm間に挟まれた樹脂の落下(スランプ性)が、5mm以下と記載されており、使い方は二液型エポキシ樹脂を混合後、高圧注入ガンに入れて空隙部への充填を行う。この際、二液混合後のたれ等の対応は大きな問題とならない。現場作業における混合時、秤量することが高粘度故に煩雑であり、ヘラによる体積比混合が求められる。主剤・硬化剤二液両者に求められるものであるが、主成分であるビスフェノールAの粘重さと混和性故に特に難しい問題であった。   JISA6024 injection epoxy resin for building repair is used for repairing buildings. The low-viscosity type, medium-viscosity type, and high-viscosity type are properly used depending on the situation of repair. Generally, high-viscosity injection materials are used for floats and cracks in mortars, tiles, etc. and large gaps. Although the standard specifies adhesiveness, cure shrinkage, heating change, physical properties, etc., the high-viscosity type is not a viscosity, and the resin fall (slump property) sandwiched between 3 mm is described as 5 mm or less. For usage, after mixing two-pack type epoxy resin, place it in a high-pressure injection gun and fill the gap. At this time, dealing with sagging after mixing the two liquids is not a big problem. At the time of mixing in the field work, weighing is complicated because of high viscosity, and volume ratio mixing with a spatula is required. Although required for both the main agent and the two hardeners, it was a particularly difficult problem due to the viscosity and miscibility of bisphenol A, which is the main component.

補修箇所に凹部を形成後、注入口併用型のアンカーピンを打ち込み、次いで、エポキシ樹脂、所定官能基を有するケチミン、変性シリコーン樹脂、変性シリコーン樹脂用触媒およびシラン化合物を含有し、粘度が50〜20000ポイズ(20℃)であり、硬化後の伸びが20〜400%である一液型エポキシ樹脂組成物をアンカーピンを通して注入する浮き補修工法が開示されている。(特許文献1)
特開平5−10039号公報
After forming a concave portion at the repair location, an anchor pin of an injection port type is driven in, and then contains an epoxy resin, a ketimine having a predetermined functional group, a modified silicone resin, a modified silicone resin catalyst and a silane compound, and a viscosity of 50 to A floating repair method is disclosed in which a one-pack type epoxy resin composition having a 20000 poise (20 ° C.) and an elongation after curing of 20 to 400% is injected through an anchor pin. (Patent Document 1)
Japanese Patent Laid-Open No. 5-10039

本発明の解決しようとする課題はエポキシ樹脂において、揺変性が大きく、ヘラによる容積計量を容易にする組成物を提供することである。   The problem to be solved by the present invention is to provide a composition having a large thixotropic property and facilitating volumetric measurement with a spatula in an epoxy resin.

請求項1の発明は、チクソトロピー性付与剤として微粉末シリカとシリル基末端ポリアルキレンオキサイド樹脂を含むことを特徴とするエポキシ樹脂組成物で、少量のシリル基末端ポリアルキレンオキサイド樹脂を配合することにより大きな揺変性効果が得られる。   The invention of claim 1 is an epoxy resin composition comprising fine powder silica and a silyl group-terminated polyalkylene oxide resin as a thixotropic agent, and by blending a small amount of silyl group-terminated polyalkylene oxide resin. A great thixotropic effect is obtained.

請求項2の発明は、損失弾性率が1400Pa以上であり、位相差δが15°以下である高粘度形建築補修用注入材であることを特徴とする請求項1に記載のエポキシ樹脂組成物で、JISA6024の高粘度形エポキシ樹脂の容積計量をヘラにて容易にできる。 The invention according to claim 2 is an epoxy resin composition according to claim 1, which is an injection material for high-viscosity building repair having a loss elastic modulus of 1400 Pa or more and a phase difference δ of 15 ° or less. Thus, volume measurement of the high viscosity epoxy resin of JIS A6024 can be easily performed with a spatula.

請求項3の発明は、微粉末シリカが親水性であることを特徴とする請求項1に記載のエポキシ樹脂組成物で大きな揺変性効果が得られ、少量の配合で効果があるため、適応範囲が広い。 The invention of claim 3 is characterized in that a fine thixotropic effect is obtained with the epoxy resin composition according to claim 1, wherein finely divided silica is hydrophilic, and is effective with a small amount of blending. Is wide.

チクソトロピー性付与剤として微粉末シリカとシリル基末端ポリアルキレンオキサイド樹脂を含むエポキシ樹脂組成物にすることにより、高度の揺変性が得られ、その樹脂の粘弾性特性として、損失弾性率を1400Pa以上、位相差δを15°以下とすることにより、ヘラによる容量計量すなわち目測で行うことができ、非常に作業性が向上することができる。   By making an epoxy resin composition containing finely divided silica and a silyl group-terminated polyalkylene oxide resin as a thixotropic agent, a high thixotropic property can be obtained. By setting the phase difference δ to 15 ° or less, it is possible to perform capacity measurement with a spatula, that is, by eye measurement, and workability can be greatly improved.

本発明で求める特性はJISA6024で求められている注入後の樹脂のスランプ性より、遙かに条件が厳しい。混合前の主剤・硬化剤、それぞれ単独での特性であり、ヘラを組成物中に入れて、ヘラを持ち上げて、混合容器にいれる時にヘラに樹脂が載り、形状が崩れず、容量比で混合ができることである。見かけ上の粘性は糸を曳かない。垂れない等である。これらの特性を粘弾性測定装置を用いて測定し、本発明を導き出した。   The characteristics required in the present invention are far more severe than the slump property of the resin after injection required in JIS A6024. The main agent and curing agent before mixing are the characteristics of each, and the spatula is put in the composition, the spatula is lifted, the resin is placed on the spatula when it is put in the mixing container, the shape does not collapse, and it is mixed by the volume ratio It is possible to do. Apparent viscosity does not twist the yarn. It is not dripping. These characteristics were measured using a viscoelasticity measuring apparatus, and the present invention was derived.

(エポキシ樹脂)
本発明に用いるエポキシ樹脂組成物は、主剤のエポキシ樹脂と硬化剤の二液からなるエポキシ樹脂組成物であり、主剤に用いるエポキシ樹脂は、例えば、ビスフェノールA型エポキシ樹脂、ビスフェノールAD型エポキシ樹脂、ビスフェノールF型エポキシ樹脂などがある。反応性希釈剤との組み合わせで、適宜目的の諸物性に適う配合とすることができる。
(Epoxy resin)
The epoxy resin composition used in the present invention is an epoxy resin composition composed of two liquids of a main agent epoxy resin and a curing agent, and the epoxy resin used for the main agent is, for example, a bisphenol A type epoxy resin, a bisphenol AD type epoxy resin, There are bisphenol F type epoxy resins and the like. By combining with a reactive diluent, it can be appropriately blended to meet the desired physical properties.

(エポキシ樹脂硬化剤)
本発明の上記主剤のエポキシ樹脂に用いる硬化剤は、末端にアミノ基を有する化合物として、例えば、トリエチレンテトラミン、テトラエチレンペンタミン、ジエチルアミノプロピルアミン、N−アミノエチルピペラジン、m−キシリレンジアミン、m−フェニレンジアミン、2,4,6−トリス(ジメチルアミノメチル)フェノール等のアミン類、3級アミン塩類、ポリアミド樹脂類、イミダゾール類、ジシアンジアミド類、ケチミン類、や三フッ化ホウ素錯化合物類、また、無水フタル酸、ヘキサヒドロ無水フタル酸、テトラヒドロ無水フタル酸、エンドメチレンテトラヒドロ無水フタル酸、ドデシニル無水コハク酸、無水ピロメリット酸、無水クロレン酸などの無水カルボン酸類、フェノール類、カルボン酸類などが挙げられ、この中でも親水性硬化剤が好ましい。
(Epoxy resin curing agent)
The curing agent used for the epoxy resin of the main agent of the present invention is a compound having an amino group at the terminal, for example, triethylenetetramine, tetraethylenepentamine, diethylaminopropylamine, N-aminoethylpiperazine, m-xylylenediamine, Amines such as m-phenylenediamine, 2,4,6-tris (dimethylaminomethyl) phenol, tertiary amine salts, polyamide resins, imidazoles, dicyandiamides, ketimines, boron trifluoride complex compounds, Also included are carboxylic anhydrides such as phthalic anhydride, hexahydrophthalic anhydride, tetrahydrophthalic anhydride, endomethylenetetrahydrophthalic anhydride, dodecynyl succinic anhydride, pyromellitic anhydride, chlorenic anhydride, phenols, carboxylic acids, etc. In this Also the hydrophilic curing agent is preferred.

(エポキシ樹脂希釈剤)
本発明はまた、エポキシ樹脂系接着剤の粘度適性の調整と適度な硬度を得るために、反応性希釈剤及び非反応性希釈剤を使用することができる。希釈剤で樹脂粘度の低粘度化を行うことにより、軽いヘラ切れや樹脂が糸をひかないなどの有利な性状が得られる。反応性希釈剤としてはブチルグリシジルエーテル、フェニルグリシジルエーテル、アルキルグリシジルエーテル、1,6−ヘキサンジオールジグリシジルエーテル、ネオペンチルグリコールジグリシジルエーテル等が挙げられる。また、非反応性希釈剤としては、ベンジルアルコール、ジオクチルフタレート、ブチルベンジルフタレート等のフタル酸エステル系可塑剤が挙げられる。
(Epoxy resin diluent)
The present invention can also use reactive diluents and non-reactive diluents in order to adjust the viscosity suitability of the epoxy resin adhesive and to obtain an appropriate hardness. By reducing the viscosity of the resin with a diluent, advantageous properties such as light spatula cutting and the resin not pulling the thread can be obtained. Examples of the reactive diluent include butyl glycidyl ether, phenyl glycidyl ether, alkyl glycidyl ether, 1,6-hexanediol diglycidyl ether, neopentyl glycol diglycidyl ether, and the like. Examples of the non-reactive diluent include phthalate plasticizers such as benzyl alcohol, dioctyl phthalate, and butyl benzyl phthalate.

(充填剤等)
本発明において、接着剤の物性向上と作業性調整等のため、接着剤の粘度調整、揺変性付与に充填剤を使用することができる。重質炭酸カルシウム、軽質炭酸カルシウム、カオリン、タルク、酸化チタン、珪酸アルミニウム、酸化マグネシウム、酸化亜鉛、カーボンブラック、微粉末チタン、硅砂などがあげられる。そのた、一般に用いられている消泡剤、接着助剤、老化防止剤、安定剤などの添加剤を必要に応じて含有使用することができる。
(Filler etc.)
In the present invention, a filler can be used for adjusting the viscosity of the adhesive and imparting thixotropic properties for improving the physical properties of the adhesive and adjusting workability. Examples include heavy calcium carbonate, light calcium carbonate, kaolin, talc, titanium oxide, aluminum silicate, magnesium oxide, zinc oxide, carbon black, finely powdered titanium, and silica sand. In addition, generally used additives such as antifoaming agents, adhesion assistants, anti-aging agents, stabilizers and the like can be used as required.

シリル基末端ポリアルキレンオキサイド樹脂
シリル基末端ポリアルキレンオキサイド樹脂は、構造粘性指数向上剤として作用し、主鎖がポリアルキレンオキサイド或いはこれにアクリルエステル等をグラフト等して変性したもので、分子量300〜15000のポリマーで、末端にシリル基を有する。1分子あたり少なくとも1つの加水分解性のアルコキシシリル基を持つものである。
Silyl group-terminated polyalkylene oxide resin Silyl group-terminated polyalkylene oxide resin acts as a structural viscosity index improver, and its main chain is modified by grafting polyalkylene oxide or acrylic ester or the like with a molecular weight of 300 to 15000 polymers with silyl groups at the ends. Those having at least one hydrolyzable alkoxysilyl group per molecule.

シリル基末端ポリアルキレンオキサイド樹脂は市販品として(株)カネカの製品 サイリルEST280、SAT010、SAT030、SAT200、SAT350、SAT400、SAX220、SAX770、MA440A、MA904、MAX501などがある。   Examples of commercially available silyl group-terminated polyalkylene oxide resins include Kaneka Corporation's products Silyl EST280, SAT010, SAT030, SAT200, SAT350, SAT400, SAX220, SAX770, MA440A, MA904, and MAX501.

本発明でシリル基末端ポリアルキレンオキサイド樹脂は微量で卓越した効果が得られるので低粘度のものがよい。添加量は全体に対して0.1〜10重量部の範囲で使用する。   In the present invention, the silyl group-terminated polyalkylene oxide resin preferably has a low viscosity because an excellent effect is obtained in a small amount. The addition amount is used in the range of 0.1 to 10 parts by weight with respect to the whole.

微粉末シリカ
本発明で使用するシリカはヒュームドシリカであり、比表面積が50以上の微粉末が良い。市販品として アエロジル50、アエロジル200、アエロジル380等の親水性未処理シリカ、表面処理を施されたアエロジルR974、アエロジルRX200、アエロジルRY200(以上 日本アエロジル(株)、商品名)等が上げられる。配合、加工条件等で、選択する。
Fine powder silica The silica used in the present invention is fumed silica, and fine powder having a specific surface area of 50 or more is preferable. Examples of commercially available products include hydrophilic untreated silica such as Aerosil 50, Aerosil 200, and Aerosil 380, Aerosil R974, Aerosil RX200, Aerosil RY200 (Nippon Aerosil Co., Ltd., trade name) and the like subjected to surface treatment. Select by blending, processing conditions, etc.

粘弾性特性
本発明は直径35φコーン角4°のチタン製コーンプレートを用いて1Pasの応力制御(ストレスコントロール)で、30Hz〜0.02Hzの範囲で周波数掃引(フリケンシースキャン)を行い。23℃での貯蔵弾性率G‘、損失弾性率G”を測定し、同時に付随する特性も求めた。測定装置はレオストレスRS−600(ハーケ社製)で、装置に付随するレオウィンでデータを取得した。粘弾性特性は一般的な性質として、貯蔵弾性率、損失弾性率共に低周波数であるほど低くなる傾向があり、実施例・実験例・比較例とも同傾向にあり、0.1Hz時のものを代表値として表に示した。上記、付随するデータとして、1Pasの応力での変位γは垂れやすさに関係し、少ないほど垂れないものである。また、位相差δは損失弾性率/貯蔵弾性率の値を角度にしたものである。(損失弾性率/貯蔵弾性率=tanδ)すなわち、損失弾性率とδより、貯蔵弾性率も計算できることになる。本発明ではヘラで容量計量が容易くでき、また、混合後も同様に注入ガンに詰めことができるものが、0.1Hz時に損失弾性率が1400Pa以上あり、かつ位相差δが15°以下であれば、前記ヘラでの計量やガンへの充填が垂れなく、ヘラ切れよく行えることを見出した。
次に、実施例、実験例、比較例をあげ、詳細を示す。
Viscoelastic characteristics In the present invention, a frequency cone sweep (frequency scan) is performed in the range of 30 Hz to 0.02 Hz with 1 Pas of stress control (stress control) using a titanium cone plate having a diameter of 35φ and a cone angle of 4 °. The storage elastic modulus G ′ and loss elastic modulus G ″ at 23 ° C. were measured, and the accompanying characteristics were also obtained. The measuring apparatus was a Rheo Stress RS-600 (manufactured by Harke). As a general property, viscoelastic properties tend to be lower for both storage elastic modulus and loss elastic modulus as the frequency is lower, and in the examples, experimental examples, and comparative examples, the tendency is the same at 0.1 Hz. As the above-mentioned accompanying data, the displacement γ with a stress of 1 Pas is related to the sag, and the smaller the less, the more the phase difference δ is the loss elastic modulus. / The value of the storage elastic modulus is an angle (loss elastic modulus / storage elastic modulus = tan δ) That is, the storage elastic modulus can also be calculated from the loss elastic modulus and δ. Easy to mix and mix After that, if the loss elastic modulus at 0.1 Hz is 1400 Pa or more and the phase difference δ is 15 ° or less, the measurement with the spatula and the filling of the gun hang down. And found that it can be done with a spatula.
Next, examples, experimental examples, and comparative examples will be given to show details.

jER828(ジャパンエポキシレジン(株)、商品名、ビスフェノールA型液状エポキシ樹脂)80重量部に、シリル基末端ポリアルキレンオキサイド樹脂SAT350(商品名、(株)カネカ製)0.5重量部を添加し5分間撹拌し、微粉末シリカとしてアエロジル200(日本アエロジル(株)、商品名、比表面積200±25m/g)5重量部添加し、さらに5分間撹拌し、AED−9(ピイ・ティ・アイ・ジャパン(株)、アルキルC12−C13グリシジルエーテル)15重量部を配合し、撹拌して実施例1のエポキシ組成物とした。 To 80 parts by weight of jER828 (Japan Epoxy Resin Co., Ltd., trade name, bisphenol A type liquid epoxy resin), 0.5 part by weight of silyl group-terminated polyalkylene oxide resin SAT350 (trade name, manufactured by Kaneka Corporation) is added. Stir for 5 minutes, add 5 parts by weight of Aerosil 200 (Nippon Aerosil Co., Ltd., trade name, specific surface area 200 ± 25 m 2 / g) as fine powdered silica, stir for another 5 minutes, and then add AED-9 (PI 15 parts by weight of I Japan Co., Ltd., alkyl C12-C13 glycidyl ether) was blended and stirred to obtain the epoxy composition of Example 1.

実施例1の微粉末シリカをアエロジル380(日本アエロジル(株)、商品名、比表面積380±30m/g)に代えた以外同じく行い実施例2とした。 Example 2 was carried out in the same manner except that the finely divided silica of Example 1 was replaced with Aerosil 380 (Nippon Aerosil Co., Ltd., trade name, specific surface area 380 ± 30 m 2 / g).

実施例1の微粉末シリカをアエロジルR974(日本アエロジル(株)、商品名、疎水性シリカ、比表面積170±20m/g)に代えた以外同じく行い実施例3とした。 Example 3 was carried out in the same manner as in Example 3 except that the fine powder silica of Example 1 was replaced with Aerosil R974 (Nippon Aerosil Co., Ltd., trade name, hydrophobic silica, specific surface area 170 ± 20 m 2 / g).

実験例1
実施例1の微粉末シリカをアエロジルRX200(日本アエロジル(株)、商品名、疎水性シリカ、比表面積140±25m/g)に代えた以外同じく行い実験例1とした。
Experimental example 1
Experimental Example 1 was conducted in the same manner except that the fine powder silica of Example 1 was replaced with Aerosil RX200 (Nippon Aerosil Co., Ltd., trade name, hydrophobic silica, specific surface area 140 ± 25 m 2 / g).

実験例2
実施例1の微粉末シリカをアエロジルRY200(日本アエロジル(株)、商品名、疎水性シリカ、比表面積100±20m/g)に代えた以外同じく行い実験例2とした。
Experimental example 2
Experimental Example 2 was carried out in the same manner except that the fine powder silica of Example 1 was replaced with Aerosil RY200 (Nippon Aerosil Co., Ltd., trade name, hydrophobic silica, specific surface area 100 ± 20 m 2 / g).

比較例1
実施例2のシリル基末端ポリアルキレンオキサイド樹脂ではなく、同重量部のPEG300DA−D(ダイセル・ユーシービー(株)、重合度300ポリエチレングリコールジアクリレート)に代えた以外同じに行い比較例1とした。
Comparative Example 1
Comparative Example 1 was carried out in the same manner as in Example 2 except that the PEG group was not the silyl group-terminated polyalkylene oxide resin of Example 2 but PEG300DA-D (Daicel UC Co., Ltd., polymerization degree 300 polyethylene glycol diacrylate) in the same weight part. .

比較例2
実施例2のシリル基末端ポリアルキレンオキサイド樹脂ではなく、同重量部のグリセリングリセリン(ナカライテスク(株)製)に代えた以外同じに行い比較例2とした。
Comparative Example 2
Comparative Example 2 was made in the same manner except that the glycerin glycerin (manufactured by Nacalai Tesque Co., Ltd.) was used instead of the silyl group-terminated polyalkylene oxide resin of Example 2 instead of the same weight part.

比較例3
実施例2のシリル基末端ポリアルキレンオキサイド樹脂ではなく、ヒュームドシリカに対する安定化とチクソトロピック剤となるBYK−405(ビックケミー・ジャパン(株)、商品名、ポリヒドロキシカルボン酸アミド溶液)に代えた以外同じに行い比較例3とした。
Comparative Example 3
Instead of the silyl group-terminated polyalkylene oxide resin of Example 2, it was replaced with BYK-405 (Bic Chemie Japan Co., Ltd., trade name, polyhydroxycarboxylic acid amide solution) which becomes a thixotropic agent for stabilizing fumed silica. Comparative Example 3 was carried out in the same manner.

比較例4
実施例2のシリル基末端ポリアルキレンオキサイド樹脂を無添加とした以外同じに行い比較例4とした。
Comparative Example 4
Comparative Example 4 was carried out in the same manner except that the silyl group-terminated polyalkylene oxide resin of Example 2 was not added.

比較例5
実施例1のシリル基末端ポリアルキレンオキサイド樹脂を無添加とした以外同じに行い比較例5とした。

Figure 2008303379
Comparative Example 5
Comparative Example 5 was carried out in the same manner except that the silyl group-terminated polyalkylene oxide resin of Example 1 was not added.
Figure 2008303379

計量性適性1:約10cm/秒の持ち上げ速度で行い、その時のヘラ切れがよく、糸引きがないものを○とした。 Suitability for measurement 1: Performed at a lifting speed of about 10 cm / sec.

計量性適性2:実施例・比較例の組成物をスレート板上で高さ20mm幅33mm長手方向の枠に注型し(ヘラで入れる)、枠を取り去り、前記長手方向を水平に維持したまま、スレート板を垂直にたて、その状態を約1mの距離からの目視で確認した。◎:角の丸みはなく、形状保持する。 ○:角はあるが変形する。 ×:垂れる。 Suitability for measurement 2: The compositions of Examples and Comparative Examples are cast on a slate plate into a frame having a height of 20 mm and a width of 33 mm in the longitudinal direction (with a spatula), the frame is removed, and the longitudinal direction is kept horizontal. The slate plate was set up vertically, and the state was visually confirmed from a distance of about 1 m. A: There is no rounded corner and the shape is maintained. ○: Although there is a corner, it is deformed. X: Dripping.

表中添加成分と関係あるものを○を付した。実験例は揺変性付与成分の増量で数値は変えうるものであり参考とした。比較例は成分の増量では対応できない成分の例とした。 In the table, those that are related to the added components are marked with ○. In the experimental examples, the numerical value can be changed by increasing the amount of the thixotropic component, and was used as a reference. The comparative example was an example of a component that cannot be handled by increasing the amount of the component.

粘弾性特性は23℃の測定値で前記粘弾性特性の説明の段落と同条件、同意味である。計測は30Hzから0.02Hzまで行ったが、垂れ、ヘラ切れの特徴が現れ易い、0.1Hzを代表値とし、記載した。 The viscoelastic characteristics are measured at 23 ° C. and have the same conditions and the same meanings as in the paragraph on the description of the viscoelastic characteristics. Although the measurement was performed from 30 Hz to 0.02 Hz, the characteristic value of 0.1 Hz, which is easy to show the characteristics of sagging and cutting of the spatula, was described.

硬化剤の配合としてアンカマイド502(エアープロダクツジャパン(株)、商品名、アミドアミン)84重量部、アンカミンK−54(エアープロダクツジャパン(株)、商品名、三級アミン)10重量部、、アエロジル200を6重量部撹拌混合し、硬化剤とした。これは実施例1〜3と同程度の揺変性を有し計量性適性もあり、ヘラによる容量計量が可能で、ヘラ切れもよく、垂れないものであった。また、実施例1〜3の主剤と1:1で混合しても、揺変性は維持でき、混合後、高圧注入ガンに混合物の挿入作業も糸引きすることがなく、容易な作業で行うことができた。また、実施例の組成物で計量適性の優れているもの程、硬化剤と混合後も用変性が高く、垂れにくい結果であった。   As a curing agent, 84 parts by weight of Ancamide 502 (Air Products Japan Co., Ltd., trade name, amidoamine), 10 parts by weight of Ancamine K-54 (trade name, tertiary amine), Aerosil 200 6 parts by weight of the mixture was stirred and mixed to obtain a curing agent. This had thixotropic properties comparable to those of Examples 1 to 3, had a suitable weighing property, could measure the volume with a spatula, had a good cut of the spatula, and did not drip. Moreover, even if it mixes with the base agent of Examples 1-3 by 1: 1, thixotropy can be maintained, and after mixing, the insertion operation of the mixture into the high-pressure injection gun is not performed, and the operation should be performed with ease. I was able to. In addition, the compositions having better measurement suitability in the examples had higher results of modification after mixing with the curing agent, and were less likely to sag.

Claims (3)

チクソトロピー性付与剤として微粉末シリカとシリル基末端ポリアルキレンオキサイド樹脂を含むことを特徴とするエポキシ樹脂組成物。 An epoxy resin composition comprising finely divided silica and a silyl group-terminated polyalkylene oxide resin as a thixotropic agent. 損失弾性率が1400Pa以上であり、位相差δが15°以下である高粘度形建築補修用注入材であることを特徴とする請求項1に記載のエポキシ樹脂組成物。 2. The epoxy resin composition according to claim 1, wherein the epoxy resin composition is a high-viscosity building repair material having a loss elastic modulus of 1400 Pa or more and a phase difference δ of 15 ° or less. 微粉末シリカが親水性であることを特徴とする請求項1に記載のエポキシ樹脂組成物。 The epoxy resin composition according to claim 1, wherein the fine powder silica is hydrophilic.
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009286889A (en) * 2008-05-29 2009-12-10 Taiyo Ink Mfg Ltd Thermosetting resin composition and printed circuit board
JP2018016950A (en) * 2016-07-25 2018-02-01 アイカ工業株式会社 Fastening method of tile on extrusion molding cement plate

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009286889A (en) * 2008-05-29 2009-12-10 Taiyo Ink Mfg Ltd Thermosetting resin composition and printed circuit board
JP2018016950A (en) * 2016-07-25 2018-02-01 アイカ工業株式会社 Fastening method of tile on extrusion molding cement plate

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