JP3591372B2 - Potted art flower - Google Patents
Potted art flower Download PDFInfo
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- JP3591372B2 JP3591372B2 JP15319099A JP15319099A JP3591372B2 JP 3591372 B2 JP3591372 B2 JP 3591372B2 JP 15319099 A JP15319099 A JP 15319099A JP 15319099 A JP15319099 A JP 15319099A JP 3591372 B2 JP3591372 B2 JP 3591372B2
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- Prior art keywords
- organopolysiloxane compound
- cured product
- potting
- potted
- reaction
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Description
【０００１】
【発明の属する技術分野】
本発明は、室温硬化性の無色透明のポッティング材を使用して花瓶にポッティングされたアートフラワーであって、硬化後においてもアートフラワーをポッティング材硬化物の中から抜き出したり、または硬化物を砕いて型や容器を回収したりすること容易にしたポッティングされたアートフラワーに関する。例えば透明なガラス製の花瓶にプラスチック製の人造花（以下、「アートフラワー」という）を固定して長期間鑑賞して、その後でポッティング材の硬化物を砕いてアートフラワーまたは花瓶を回収して、これらを再使用できるポッティングされたアートフラワーである。
【０００２】
【従来の技術】
この分野で使用されるポッティング材には、エポキシ樹脂、ウレタン樹脂、シリコーン樹脂などの反応性の液状樹脂が使用される。これらポッティング材の要求特性として、低い反応熱、低収縮性、被固定物への接着力等を挙げることができる。
【０００３】
さらに、柔軟性、透明性、耐久性が要求されるような用途のポッティング材には、シリコーンゴムまたはシリコーンゲルが多く使われている。このような目的のシリコーンのポッティング材については、特開平７−３０４９５６、特開平８−２６９３３１等に開示されている。
【０００４】
【発明が解決しようとする課題】
エポキシ樹脂のポッティング材は、開還重合するので硬化収縮が小さくかつ室温硬化する特徴がある。しかし、開還重合は炭素−酸素の共有結合の開裂を伴うので反応熱が大きく、結果として硬化の際の発熱が大きくなる欠点がある。例えば、５００ミリリットル以上のポッティングでは反応熱で内部の温度は１００℃以上まで上昇する場合もある。例えば、前記のアートフラワーを花瓶に固定する場合では、その反応熱でアートフラワーの花や葉が変色し、ひどい場合にはその茎が熱変形する。反応速度を遅くすればこの反応熱の問題は解決できるが、硬化反応が終了するまで１日以上かかることになると、作業性が低下するという新たな欠点が生じる。
【０００５】
ウレタン樹脂のポッティング材は穏やかにかつ速く硬化し、反応熱が小さく、また硬化収縮も少ない。しかし、原料の一つであるイソシアネート化合物もしくはポリアミノ化合物には皮膚刺激性があり、これらに触るだけでカブレてしまう人もあり、作業衛生の観点から好ましくない。また、硬化反応における二次反応で二酸化炭素を副生成する場合があるので、硬化物中に気泡を抱いてしまう欠点がある。このため、装飾目的のポッティングには好ましくない。
【０００６】
シリコーン樹脂のポッティング材は穏やかに速く硬化し、反応熱も小さく、硬化収縮も少ない。また作業衛生上の問題もなく、副反応もおこさない。シリコーン樹脂は前記２つの樹脂に比べてポッティング材として好ましい素材といえる。しかし、美的な装飾目的で使用するポッティングでは、創作としての試行錯誤が行われるので、ポッティング材が硬化した後からでも、容器から硬化物を砕いて取り除いたり、硬化物から被固定物の一部を抜き取ったりすることがある。しかし、シリコーン樹脂は強靱で柔軟なゴム弾性体なので、逆に硬化物を切ったり、裂いたり、砕いたりする作業が困難である。
【０００７】
【課題を解決するための手段】
美的な装飾目的のポッティングされたアートフラワーとしての要求特性を全て満たすため、本発明は（ａ）１分子中にハイドロジエンシリル基を２つ以上有するオルガノポリシロキサン化合物と、（ｂ）１分子中にビニルシリル基を２つ以上有するオルガノポリシロキサン化合物と、（ｃ）末端にトリアルキルシリル基を有する非反応性のオルガノポリシロキサン化合物と、（ｄ）白金触媒からなり、（ｃ）の添加量は（ａ）（ｂ）の合計量１００重量部に対し、１５〜４０重量部からなる組成物であり、かつ、該組成物が付加重合により生成する硬化物の引っ張り強度が５０ｋＰａ〜６００ｋＰａで、伸びが５％〜１００％であり、かつ、硬さがショアーＡで１０〜４０であるポッテイング用シリコーン組成物をポッティング材として使用した、花瓶等にポッティングされたアートフラワーである。
【０００８】
前述の（ａ）１分子中にハイドロジエンシリル基を２つ以上有するオルガノポリシロキサン化合物、（ｂ）１分子中のビニルシリル基を２つ以上有するオルガノポリシロキサン化合物、（ｃ）末端にトリアルキルシリル基を有する非反応性のオルガノポリシロキサン化合物、（ｄ）白金触媒は従来のシリコーンゴム成分と同じである。
【０００９】
本発明で使用されるシリコーン組成物のポッティング硬化物は、引っ張り強度が５０ｋＰａ〜６００ｋＰａで、伸びが５％〜１００％の物性なので、ポッティング材の硬化後においてもポッティング硬化物を切り裂いてアートフラワーを硬化物から抜き出したり、または硬化物を砕いて容器を回収したりすることが容易になっている。
【００１０】
また、本発明で使用されるシリコーン組成物は、付加反応の関与するハイドジエンシリル基を有するオルガノポリシロキサン化合物とビニル基を有するオルガノポリシロキサン化合物と白金触媒と、この反応に関与しないトリアルキルシリル基を有する非反応性のオルガノポリシロキサン化合物とで構成されている。非反応性のオルガノポリシロキサン化合物は、付加反応熱による硬化の際の温度上昇と硬化収縮を抑える働きをする。例えば、本発明のシリコーン組成物１０００ミリリットルは、室温で約２〜８時間で硬化し、その体積収縮は１％以下であり、反応熱による温度上昇は若干あるが、その上昇は最高で約５０℃以下である。
【００１１】
この（ｃ）末端にトリアルキルシリル基を有するオルガノポリシロキサン化合物の配合量は、付加反応に関与する前記２つのオルガノポリシロキサン化合物（ａ）（ｂ）の合計を１００重量部にした場合において、１５〜４０重量部を配合される。１５重量部以下では、後述の硬化物性が発揮されず、４０重量部では経時により非反応性の当該オルガノポリシロキサン化合物が硬化物から滲み出してくるからである。
【００１２】
本発明で使用されるシリコーン組成物の硬化物は、前述の（ｃ）トリアルキルシリル基を有する非反応性のオルガノポリシロキサン化合物を含んでいるので、引っ張り強度が５０ｋＰａ〜６００ｋＰａ、伸びが５％〜１００％の物性となる。また、硬さはＪＩＳ Ｋ ６２５３のデュロメーター硬さ試験でショアーＡで１０〜４０である。このような物性の硬化物は、外からの小さい応力が負荷される場合は柔軟なゴム弾性体のような挙動をし、急激で大きい応力が負荷されると、脆い剛体の挙動をする。つまり、本発明のポッティング材の硬化物は、振動や熱膨張などの外力に対しては強い耐性を示すが、刃物で切り裂いたり、先の尖った物で突いて砕くことが容易にできる。
【００１３】
【発明の実施の形態】
２０℃での粘度が１Ｐａ・ｓの１分子中にハイドロジエンシリル基を２つ以上有するオルガノポリシロキサン化合物５００ｇと、２０℃での粘度が１Ｐａ・ｓの１分子中にビニルシリル基を２つ以上有するオルガノポリシロキサン化合物５００ｇと、２０℃での粘度が０．５Ｐａ・ｓの末端にトリアルキルシリル基を有する非反応性のオルガノポリシロキサン化合物３５０ｇと、白金触媒として塩化白金酸１ｇを混合して、本発明で使用されるシリコーン組成物を調製した。この組成物を室温で６時間放置して、無色透明で気泡がなくかつひび割れもない硬化物を得た。この硬化物の物性は、引っ張り強度が４００ｋＰａで、伸びが７０％、ＪＩＳ Ｋ ６２５３のデュロメーター硬さ試験でショアーＡで２９であった。
【００１４】
前記シリコーン組成物２００ｇを、アートフラワーの入ったガラス製の花瓶に注型し室温で６時間放置して、アートフラワーを固定した。硬化したシリコーン組成物は、無色透明なので水のような擬態となり、アートフラワー自体が水にさした活花の趣がでていた。一ヶ月間の鑑賞後に、箸で突いて硬化したシリコーン組成物を砕いて、アートフラワーを回収するともに、花瓶からシリコーン組成物を除去できた。
【００１５】
【発明の効果】
本発明で使用されるポッティング材は、室温で１〜６時間で硬化反応を終了するほどの速硬化性を有しながらその反応熱による温度上昇は小さく、硬化収縮もほとんどなく、無色透明の脆性のある硬化物を生成する。このような物性は、装飾目的の固定されたアートフラワーのポッティングに適する。例えば、アートフラワーを花瓶に固定するためにポッティングに使用した場合、アートフラワーは反応熱で変色または変形等することなく、アートフラワー本来の審美性を維持できる。また、本発明で使用されるポッティング材は経時変化による黄変のない透明硬化物なので、花瓶に注ぎ込まれたきれいな水のような擬似形態を生じる。
【００１６】
本発明で使用されるシリコーン組成物の硬化物は外からの応力が負荷されると脆く壊れる性質が有するので、美的な装飾目的では通常に行われる創作としての試行錯誤において、ポッティング材が硬化した後からでも、刃物や先の尖った物でこの硬化物を砕いてポッティングした容器からこの硬化物を取り除くことが容易にできる。[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention is an art flower potted in a vase using a colorless and transparent potting material that is curable at room temperature, and even after curing, pulls out the art flower from the cured potting material or crushes the cured material. The present invention relates to a potted art flower that facilitates collecting molds and containers. For example, a plastic artificial flower (hereinafter, referred to as "art flower") is fixed in a transparent glass vase and watched for a long time, and then the cured potting material is crushed to collect the art flower or vase. These are potted art flowers that can be reused.
[0002]
[Prior art]
As a potting material used in this field, a reactive liquid resin such as an epoxy resin, a urethane resin, and a silicone resin is used. Required properties of these potting materials include low reaction heat, low shrinkage, adhesive strength to an object to be fixed, and the like.
[0003]
Further, silicone rubber or silicone gel is often used as a potting material for applications requiring flexibility, transparency, and durability. Such a silicone potting material for this purpose is disclosed in JP-A-7-304956 and JP-A-8-269331.
[0004]
[Problems to be solved by the invention]
The epoxy resin potting material is characterized by a small cure shrinkage and room temperature curing because it undergoes reductive polymerization. However, the reductive polymerization involves cleavage of a carbon-oxygen covalent bond, so that the heat of reaction is large, and as a result, there is a disadvantage that the heat generated during curing is large. For example, in potting of 500 ml or more, the internal temperature may rise to 100 ° C. or more due to reaction heat. For example, when the art flower is fixed in a vase, the flower and leaves of the art flower are discolored due to the heat of the reaction, and when severe, the stem is thermally deformed. If the reaction rate is reduced , the problem of the reaction heat can be solved, but if it takes more than one day until the curing reaction is completed, there is a new disadvantage that the workability is reduced.
[0005]
Urethane resin potting materials cure gently and quickly, have low reaction heat, and have low cure shrinkage. However, isocyanate compounds or polyamino compounds, which are one of the raw materials, are irritating to the skin, and some people may fog just by touching them, which is not preferable from the viewpoint of work hygiene. In addition, since carbon dioxide may be by-produced in a secondary reaction in the curing reaction, there is a disadvantage that bubbles are contained in the cured product. Therefore, it is not preferable for potting for decorative purposes.
[0006]
Silicone resin potting materials cure gently and quickly, have low heat of reaction, and have low cure shrinkage. In addition, there is no problem in work hygiene and no side reaction occurs. Silicone resin can be said to be a preferable material as a potting material as compared with the two resins. However, potting used for aesthetic purposes involves trial and error as a creative process, so even after the potting material has hardened, the hardened material can be crushed and removed from the container, or a part of the fixed object can be removed from the hardened material. May be extracted. However, since the silicone resin is a tough and flexible rubber elastic body, it is difficult to cut, tear or crush the cured product.
[0007]
[Means for Solving the Problems]
In order to satisfy all the properties required as a potted art flower for the purpose of aesthetic decoration, the present invention provides (a) an organopolysiloxane compound having two or more hydrogensilenyl groups in one molecule, and (b) a molecule in one molecule. organopolysiloxane compound having a vinyl silyl group two or more, the non-reactive organopolysiloxane compound having a trialkylsilyl group (c) end, consists (d) a platinum catalyst, the amount of (c) is (A) a composition comprising 15 to 40 parts by weight with respect to 100 parts by weight of the total amount of (b), and a cured product produced by addition polymerization of the composition having a tensile strength of 50 kPa to 600 kPa; There Ri 5% to 100% der, and a hardness of 10 to 40 Shore a potting silicone composition as a potting material And use, is a potted Art flower in a vase or the like.
[0008]
(A) an organopolysiloxane compound having two or more hydrogensilyl groups in one molecule, (b) an organopolysiloxane compound having two or more vinylsilyl groups in one molecule, (c) trialkylsilyl at a terminal The non-reactive organopolysiloxane compound having a group, (d) the platinum catalyst is the same as the conventional silicone rubber component.
[0009]
Potting cured product of the silicone composition used in the present invention, a tensile strength 50KPa～600kPa, since elongation physical properties of 5% to 100%, the Art Flower tearing through the potting cured product even after curing of the potting material It is easy to withdraw from the cured product or to collect the container by crushing the cured product.
[0010]
Further, the silicone composition used in the present invention comprises an organopolysiloxane compound having a hydrdienesilyl group involved in an addition reaction, an organopolysiloxane compound having a vinyl group, a platinum catalyst, and a trialkylsilyl not involved in this reaction. And a non-reactive organopolysiloxane compound having a group. The non-reactive organopolysiloxane compound functions to suppress temperature rise and curing shrinkage during curing by the heat of addition reaction. For example, 1000 ml of the silicone composition of the present invention cures in about 2 to 8 hours at room temperature, has a volume shrinkage of 1% or less, and has a slight rise in temperature due to heat of reaction, but a rise of about 50 to a maximum. It is below ° C.
[0011]
The compounding amount of this (c) organopolysiloxane compound having a trialkylsilyl group at the terminal is as follows when the total of the two organopolysiloxane compounds (a) and (b) involved in the addition reaction is 100 parts by weight. It is blended 15-40 parts by weight. If the amount is 15 parts by weight or less, the cured physical properties described below are not exhibited, and if it is 40 parts by weight, the non-reactive organopolysiloxane compound oozes out of the cured product with the passage of time.
[0012]
Since the cured product of the silicone composition used in the present invention contains the (c) non-reactive organopolysiloxane compound having a trialkylsilyl group, the cured product has a tensile strength of 50 kPa to 600 kPa and an elongation of 5%. １００100% physical properties. The hardness is 10 to 40 for Shore A in a durometer hardness test according to JIS K6253. The cured product having such physical properties behaves like a flexible rubber elastic body when a small external stress is applied, and behaves as a brittle rigid body when a sudden and large stress is applied. In other words, the cured product of the potting material of the present invention exhibits strong resistance to external forces such as vibration and thermal expansion, but can easily be cut with a blade or crushed with a sharp object.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
Organopolysiloxane compound 500g of a viscosity at 20 ° C. with a hydro-diene silyl group two or more in one molecule of 1 Pa · s, more than a vinyl silyl group in one molecule of the viscosity of 1 Pa · s at 20 ° C. 500 g of an organopolysiloxane compound having a viscosity of 0.5 Pa · s at 20 ° C. , 350 g of a non-reactive organopolysiloxane compound having a trialkylsilyl group at a terminal, and 1 g of chloroplatinic acid as a platinum catalyst A silicone composition used in the present invention was prepared. The composition was allowed to stand at room temperature for 6 hours to obtain a cured product which was colorless, transparent, free of air bubbles and free of cracks. Physical properties of the cured product were a tensile strength of 400 kPa, an elongation of 70%, and a Shore A of 29 in a durometer hardness test according to JIS K6253.
[0014]
200 g of the silicone composition was poured into a glass vase containing an art flower and left at room temperature for 6 hours to fix the art flower. Since the cured silicone composition was colorless and transparent, it mimicked water, and the art flower itself had a lively flower-like appearance. After one month of appreciation, the cured silicone composition was crushed with chopsticks to recover the art flower and remove the silicone composition from the vase.
[0015]
【The invention's effect】
The potting material used in the present invention has a rapid curing property such that the curing reaction is completed at room temperature for 1 to 6 hours, but the temperature rise due to the reaction heat is small, the curing hardly shrinks, and the colorless and transparent brittleness is obtained. To produce a cured product having a certainty. Such physical properties are suitable for potting fixed art flowers for decorative purposes. For example, when used in potting to secure the art flower vase, art flour without discoloration or deformation by heat of reaction can be maintained Art Flower original esthetics. Further, since the potting material used in the present invention is a transparent cured product without yellowing due to aging, a pseudo form such as clean water poured into a vase occurs.
[0016]
Since the cured product of the silicone composition used in the present invention has a property of being brittle and broken when an external stress is applied, the potting material is cured by trial and error as a creation usually performed for aesthetic decoration purposes. Even afterwards, the cured product can be easily removed from the potted container by crushing the cured product with a blade or a pointed object.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15319099A JP3591372B2 (en) | 1999-06-01 | 1999-06-01 | Potted art flower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15319099A JP3591372B2 (en) | 1999-06-01 | 1999-06-01 | Potted art flower |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000336269A JP2000336269A (en) | 2000-12-05 |
| JP3591372B2 true JP3591372B2 (en) | 2004-11-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15319099A Expired - Lifetime JP3591372B2 (en) | 1999-06-01 | 1999-06-01 | Potted art flower |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3591372B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009275196A (en) * | 2008-05-19 | 2009-11-26 | Sony Corp | Curable resin material composition, optical material, light emitting device, method for producing the same, and electronic device |
| JP2021001257A (en) | 2019-06-20 | 2021-01-07 | 信越化学工業株式会社 | Room temperature curable silicone rubber composition |
| JP2021017511A (en) * | 2019-07-23 | 2021-02-15 | アイカ工業株式会社 | Addition reaction curable silicone resin composition and silicone ornament |
-
1999
- 1999-06-01 JP JP15319099A patent/JP3591372B2/en not_active Expired - Lifetime
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| Publication number | Publication date |
|---|---|
| JP2000336269A (en) | 2000-12-05 |
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