JP2589664B2 - Method for preventing crystal solidification of epoxy resin composition - Google Patents
Method for preventing crystal solidification of epoxy resin compositionInfo
- Publication number
- JP2589664B2 JP2589664B2 JP6165786A JP16578694A JP2589664B2 JP 2589664 B2 JP2589664 B2 JP 2589664B2 JP 6165786 A JP6165786 A JP 6165786A JP 16578694 A JP16578694 A JP 16578694A JP 2589664 B2 JP2589664 B2 JP 2589664B2
- Authority
- JP
- Japan
- Prior art keywords
- epoxy resin
- composition
- resin composition
- production
- heated
- 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.)
- Expired - Fee Related
Links
Landscapes
- Epoxy Resins (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、液状エポキシ樹脂に粉
末の無機充填材を配合してなるエポキシ樹脂配合組成物
の結晶固化を防止する方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for preventing solidification of an epoxy resin composition obtained by mixing a powdery inorganic filler with a liquid epoxy resin.
【０００２】[0002]
【従来の技術】エポキシ樹脂配合組成物は、主に土木、
建築関係において、常温硬化２液型の接着剤、塗料等の
主剤として用いられている。このエポキシ樹脂配合組成
物は、通常、液状エポキシ樹脂に希釈剤を加えて粘度を
下げて、これに炭酸カルシウムやタルク等の粉末の無機
物質を加え、必要により二酸化珪素や含水珪酸マグネシ
ウム等の無機揺変材を撹拌又はロールにかけて均一に混
合して製造される。このようにして形成されるエポキシ
樹脂配合組成物は、冬期になり低温におかれると結晶固
化することが多くなる。2. Description of the Related Art Epoxy resin composition is mainly used for civil engineering,
In the building industry, it is used as a main agent for room temperature curing two-part adhesives, paints and the like. This epoxy resin compounding composition is usually prepared by adding a diluent to a liquid epoxy resin to lower the viscosity, adding a powdered inorganic substance such as calcium carbonate or talc thereto, and, if necessary, adding an inorganic substance such as silicon dioxide or hydrous magnesium silicate. The thixotropic material is manufactured by mixing uniformly by stirring or rolling. The epoxy resin composition thus formed is often crystallized when it is in winter and at low temperatures.
【０００３】結晶固化したエポキシ樹脂配合組成物は、
そのままでは接着剤や塗料としての使用は不可となる
が、該組成物を加温すると融解して使用可能となること
は知られている。しかしながら、該組成物を入手して使
用する需要者は、結晶固化の融解のためとはいえ自ら行
う余計な作業は好まない。[0003] The crystallized and solidified epoxy resin composition is
It is impossible to use the composition as an adhesive or paint as it is, but it is known that the composition can be melted and used when heated. However, consumers who obtain and use the composition do not like the extra work they do on their own, albeit for melting the crystal solidification.
【０００４】[0004]
【発明が解決しようとする課題】本発明は、エポキシ樹
脂配合組成物が、低温時に結晶固化するという問題点を
解決しようとするものである。An object of the present invention is to solve the problem that the epoxy resin compound composition crystallizes at low temperatures.
【０００５】[0005]
【課題を解決するための手段】エポキシ樹脂配合組成物
が結晶固化するのは、混合物そのものが均一に分散され
ていても必ずしも粉末の無機充填材の表面に凹凸等があ
って空隙ができたり表面との馴染みが悪かったりして液
状エポキシ樹脂が十分に浸透・含浸していなかったこと
によるものと分ったので、課題は以下の手段を採ること
により解決した。Means for Solving the Problems Crystallization of the epoxy resin compounding composition is caused by the fact that even if the mixture itself is uniformly dispersed, the surface of the inorganic filler in the form of powder has irregularities or the like, so that voids or the like can be formed. It was found that the liquid epoxy resin was not sufficiently penetrated or impregnated due to poor adaptation to the above, and the problem was solved by taking the following measures.
【０００６】エポキシ樹脂配合組成物の製造時又は製造
後に、製造時の該組成物又は製造後の該組成物を加温養
生し、液状エポキシ樹脂の粘度を下げ、粉末の無機充填
材の空隙及び表面に液状エポキシ樹脂の浸透・含浸をさ
せる。[0006] During or after the production of an epoxy resin-containing composition, the composition at the time of production or the composition after production is heated and cured to lower the viscosity of the liquid epoxy resin, to reduce the voids of the powdered inorganic filler, Infiltrate and impregnate the surface with liquid epoxy resin.
【０００７】製造時における加温養生の一例としては、
製造時に製造容器のまわりに温水を通しながら、エポキ
シ樹脂配合組成物を加温養生する。[0007] As an example of heating and curing during production,
The epoxy resin blend composition is heated and cured while hot water is passed around the production container during production.
【０００８】また、製造後における加温養生の一例とし
ては、エポキシ樹脂配合組成物をサウナ室に入れて加温
養生する。As an example of heating and curing after production, an epoxy resin composition is placed in a sauna room and heated and cured.
【０００９】エポキシ樹脂配合組成物の加温養生温度
は、好ましくは摂氏５０度以上である。[0009] The heating curing temperature of the epoxy resin composition is preferably 50 ° C or higher.
【００１０】なお、これまでのエポキシ樹脂配合組成物
が、主剤として硬化剤との混合反応において、設定され
た物性値及び強度を満足していれば十分であったため
に、該組成物の製造工程に、さらにこのような工程を増
やすことによる問題点の解決手段は全く検討されること
はなかった。[0010] It is sufficient if the conventional epoxy resin compounding composition satisfies the set physical properties and strength in a mixing reaction with a curing agent as a main component, so that the manufacturing process of the composition is not sufficient. In addition, no solution to the problem caused by further increasing the number of steps has been considered.
【００１１】[0011]
【作用】上記の手段において、エポキシ樹脂配合組成物
を加温すると液状エポキシ樹脂は、粘度が下がり、粉末
の無機充填材の空隙や粉末の無機充填材の表面の凹凸等
に十分に浸透・含浸し、該組成物の結晶固化のきっかけ
をなくし、該組成物の結晶固化を防止する。In the above means, when the epoxy resin compound composition is heated, the viscosity of the liquid epoxy resin decreases, and the liquid epoxy resin sufficiently penetrates and impregnates into the voids of the inorganic filler in the powder and the irregularities on the surface of the inorganic filler in the powder. In addition, the trigger for crystal solidification of the composition is eliminated, and the solidification of the composition is prevented.
【００１２】[0012]
【実施例】つぎに、本発明の実施例を説明する。表１に
示す配合のエポキシ樹脂配合組成物について、製造時及
び製造後について、それぞれ加温養生した。Next, embodiments of the present invention will be described. About the epoxy resin composition of the composition shown in Table 1, it heat-cured at the time of manufacture, and after manufacture, respectively.
【００１３】[0013]
【表１】 [Table 1]
【００１４】実施例１ 内側の容器を製造容器とし、外側の容器を温水容器とす
る二重容器を用意し、表１に示した材料を内側の容器に
入れて、各材料が均一に分散するように撹拌しながら組
成物を製造するとともに外側の容器に温水を通して加温
養生する。５０度Ｃ乃至６０度Ｃに加温された組成物と
３０度Ｃ乃至３５度Ｃに加温された組成物について、そ
れぞれ低温においたところ前者は結晶固化せず、後者は
結晶固化しやすいことが分った。Example 1 A double container was prepared in which the inner container was used as a production container and the outer container was used as a hot water container. The materials shown in Table 1 were put in the inner container, and each material was uniformly dispersed. The composition is produced while stirring as described above, and is heated and cured by passing warm water through the outer container. Regarding the composition heated to 50 ° C. to 60 ° C. and the composition heated to 30 ° C. to 35 ° C., the former is not crystallized and the latter is easily crystallized at low temperatures, respectively. I understand.
【００１５】実施例２ 表１に示した材料を製造容器に入れて加温することな
く、各材料が均一に分散するように撹拌しながら組成物
として完成した組成物をサウナ室などの加温室に一晩入
れて加温養生する。５０度Ｃ乃至６０度Ｃに加温された
組成物と３０度Ｃ乃至３５度Ｃに加温された組成物につ
いて、それぞれ低温においたところ前者は結晶固化せ
ず、後者は結晶固化しやすいことが分った。Example 2 Without heating the materials shown in Table 1 in a production container and stirring them so that each material is uniformly dispersed, the composition as a composition was heated to a heating room such as a sauna room. And heat it for one night. Regarding the composition heated to 50 ° C. to 60 ° C. and the composition heated to 30 ° C. to 35 ° C., the former is not crystallized and the latter is easily crystallized at low temperatures, respectively. I understand.
【００１６】この結果、製造中の組成物も製造後の組成
物も一定温度以上に加温すると液状エポキシ樹脂は、粉
末無機充填材の空隙や表面に十分浸透・含浸する粘度に
下がり、液状エポキシ樹脂が、粉末無機充填材の空隙や
表面に十分に浸透・含浸して結晶固化しないことが分っ
た。なお、本発明は、上述の実施例に限定されるもので
ないことはもちろんである。As a result, when both the composition during the production and the composition after the production are heated above a certain temperature, the viscosity of the liquid epoxy resin falls to a level that allows it to sufficiently penetrate and impregnate the voids and surfaces of the powdered inorganic filler, and It was found that the resin sufficiently permeated and impregnated the voids and surfaces of the powdered inorganic filler and did not solidify in the form of crystals. The present invention is, of course, not limited to the embodiments described above.
【００１７】[0017]
【発明の効果】本発明は、上述のようにしてなるので、
すなわち、液状エポキシ樹脂に粉末の無機充填材を配合
してなるエポキシ樹脂配合組成物の製造時又は製造後
に、製造時の該組成物又は組成後の該組成物を加温養生
し、液状エポキシ樹脂の粘度を下げ、粉末の無機充填材
の空隙や表面に液状エポキシ樹脂を浸透・含浸させるこ
とにより、エポキシ樹脂配合組成物の結晶固化のきっか
けをなくし、結晶固化を防止する。Since the present invention has been made as described above,
That is, at the time of or after the production of an epoxy resin compound composition obtained by mixing a powdered inorganic filler with a liquid epoxy resin, the composition at the time of production or the composition after the composition is heated and cured, and the liquid epoxy resin is cured. By lowering the viscosity of the epoxy resin composition and impregnating and impregnating the liquid epoxy resin into the voids and surfaces of the powdered inorganic filler, the trigger for crystal solidification of the epoxy resin compounding composition is eliminated and crystal solidification is prevented.
Claims (4)
配合してなるエポキシ樹脂配合組成物の製造時又は製造
後に、製造時の該組成物又は製造後の該組成物を加温養
生し、液状エポキシ樹脂の粘度を下げ、粉末の無機充填
材の空隙及び表面に液状エポキシ樹脂の浸透・含浸を行
うことを特徴とするエポキシ樹脂配合組成物の結晶固化
防止方法。At the time of or after the production of an epoxy resin compound composition comprising a liquid epoxy resin and a powdered inorganic filler, the composition at the time of production or the composition after production is heated and cured, A method for preventing crystallization of an epoxy resin compound composition, comprising lowering the viscosity of a liquid epoxy resin and permeating and impregnating the liquid epoxy resin into voids and surfaces of a powdered inorganic filler.
ながらエポキシ樹脂配合組成物を加温養生することを特
徴とする請求項１に記載のエポキシ樹脂配合組成物の結
晶固化防止方法。2. The method for preventing crystal solidification of an epoxy resin composition according to claim 1, wherein the epoxy resin composition is heated and cured while passing hot water around the production container during production.
室に入れて加温養生することを特徴とする請求項１に記
載のエポキシ樹脂配合組成物の結晶固化防止方法。3. The method for preventing crystal solidification of an epoxy resin composition according to claim 1, wherein the epoxy resin composition is put into a heating chamber and cured after heating.
は摂氏５０度以上であることを特徴とする請求項１、請
求項２又は請求項３に記載のエポキシ樹脂配合組成物の
結晶固化防止方法。4. The epoxy resin composition according to claim 1, wherein the heating and curing temperature of the epoxy resin composition is 50 ° C. or higher. Method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6165786A JP2589664B2 (en) | 1994-06-27 | 1994-06-27 | Method for preventing crystal solidification of epoxy resin composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6165786A JP2589664B2 (en) | 1994-06-27 | 1994-06-27 | Method for preventing crystal solidification of epoxy resin composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH083424A JPH083424A (en) | 1996-01-09 |
| JP2589664B2 true JP2589664B2 (en) | 1997-03-12 |
Family
ID=15818986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6165786A Expired - Fee Related JP2589664B2 (en) | 1994-06-27 | 1994-06-27 | Method for preventing crystal solidification of epoxy resin composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2589664B2 (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59129231A (en) * | 1983-01-12 | 1984-07-25 | Hitachi Chem Co Ltd | Production of epoxy resin molding material |
| JPS62115021A (en) * | 1985-11-13 | 1987-05-26 | Mitsubishi Electric Corp | Production of epoxy resin composition |
| JPH03115423A (en) * | 1989-09-29 | 1991-05-16 | Toshiba Corp | Production of one-pack epoxy resin composition |
-
1994
- 1994-06-27 JP JP6165786A patent/JP2589664B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH083424A (en) | 1996-01-09 |
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