JP3024778B2 - Foam insulation - Google Patents
Foam insulationInfo
- Publication number
- JP3024778B2 JP3024778B2 JP2180873A JP18087390A JP3024778B2 JP 3024778 B2 JP3024778 B2 JP 3024778B2 JP 2180873 A JP2180873 A JP 2180873A JP 18087390 A JP18087390 A JP 18087390A JP 3024778 B2 JP3024778 B2 JP 3024778B2
- Authority
- JP
- Japan
- Prior art keywords
- foam
- polyol
- fluorocarbon
- heat insulating
- insulating material
- 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
- Refrigerator Housings (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Polyurethanes Or Polyureas (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は冷蔵庫、冷凍庫等に利用する発泡断熱材に関
するものである。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a foam insulation material used for refrigerators, freezers and the like.
従来の技術 最近、フロン公害問題が社会的問題となり、硬質ウレ
タンフォーム等の発泡断熱材の発泡剤であるトリクロロ
モノフルオロメタン（以下CFC−11と称する）の削減全
廃が大きなテーマとなっている。このためオゾン破壊係
数の小さな物質を発泡剤候補として検討が鋭意なされて
いる。例えば特開昭52−59359号公報にフルオロカーボ
ンC5F12を発泡剤として使用することが提案されてい
る。C5F12は分子構造中に塩素原子が含まれておらず、
オゾン破壊のない発泡断熱材を生成することが特徴とな
っている。2. Description of the Related Art Recently, the problem of chlorofluorocarbon pollution has become a social problem, and reduction and elimination of trichloromonofluoromethane (hereinafter referred to as CFC-11), which is a foaming agent for foam insulation such as rigid urethane foam, has become a major theme. For this reason, a substance with a small ozone destruction coefficient is being studied as a blowing agent candidate. For example a fluorocarbon C 5 F 12 in JP 52-59359 discloses that used as a foaming agent have been proposed. C 5 F 12 does not contain a chlorine atom in the molecular structure,
It is characterized by producing a foamed insulation material without ozone destruction.
発明が解決しようとする課題 しかし、C5F12は分子構造的に極性が小さく、ウレタ
ン原料に対する溶解性が低いという特徴がある。この結
果、比較的溶解しやすいシュガーグリセリン系ポリエー
テルポリオール等の限定された原料にしか適用できない
問題があった。このため、硬質ウレタンフォームの強度
改善や断熱性能向上に対し効果を有する芳香族アミン系
や脂肪族アミン系のポリエーテルポリオール等は使用で
きずフォーム物性の改良が難しいという問題があった。
このようにフロン公害問題のないC5F12を使用する上で
種々の樹脂原料の適用を容易に対応することが大きな課
題であった。Problems to be Solved by the Invention However, C 5 F 12 is characterized in that it has a small polarity in molecular structure and low solubility in a urethane raw material. As a result, there is a problem that it can be applied only to limited raw materials such as sugar glycerin-based polyether polyol which is relatively easily dissolved. For this reason, there has been a problem that aromatic amine-based or aliphatic amine-based polyether polyols and the like, which are effective for improving the strength and heat insulating performance of the rigid urethane foam, cannot be used, and it is difficult to improve the foam properties.
As described above, when using C 5 F 12 having no chlorofluorocarbon pollution problem, it was a major problem to easily adapt various resin materials.
本発明は、上記課題に鑑み、C5F12のウレタン原料へ
の溶解性を向上し、広範囲の原料選択から優れた物性の
発泡断熱材を生成することを目的とする。In view of the above problems, an object of the present invention is to improve the solubility of C 5 F 12 in a urethane raw material and to produce a foamed heat insulating material having excellent physical properties from a wide range of raw material selections.
課題を解決するための手段 本発明は上記課題を解決するために有機ポリイソシア
ネート，ポリオール，触媒，整泡剤成分としてフルオロ
カーボン系界面活性剤，発泡剤成分としてフルオロカー
ボンC5F12を混合撹拌し、発泡断熱材を得るものであ
る。Means for Solving the Problems The present invention solves the above problems by mixing and stirring an organic polyisocyanate, a polyol, a catalyst, a fluorocarbon surfactant as a foam stabilizer component, and a fluorocarbon C 5 F 12 as a foaming agent component. This is to obtain a foamed heat insulating material.
作用 上記構成によって、整泡剤成分として適用したフルオ
ロカーボン系界面活性剤が親水性物質であるポリオール
等の原料と疎水性物質であるC5F12の相溶性を高め、均
一な発泡挙動により優れた均質微細な気泡構造を生成、
断熱性能やフォーム強度改善など発泡断熱材の物性改良
が図れるのである。Action With the above configuration, the fluorocarbon surfactant applied as the foam stabilizer component enhances the compatibility between the raw material such as the polyol which is a hydrophilic substance and the C 5 F 12 which is a hydrophobic substance, and has an excellent uniform foaming behavior. Generates a homogeneous and fine bubble structure,
It is possible to improve the physical properties of the foamed heat insulating material such as the heat insulating performance and the foam strength.
フルオロカーボン系界面活性剤としては構成分子中に
フッ素原子を含むものでフルオロアルキル基とポリエー
テル基を反応結合した界面活性剤が望ましく、フルオロ
アルキル基は直鎖状又は分岐状でも良い。As the fluorocarbon surfactant, a surfactant containing a fluorine atom in a constituent molecule and having a fluoroalkyl group and a polyether group reactively bonded is desirable, and the fluoroalkyl group may be linear or branched.
又、ポリオールとしては芳香族アミン系ポリエーテル
ポリオール，脂肪族アミン系ポリエーテルポリオールシ
ュガー系ポリエーテルポリオールなどが使用できるが断
熱性能向上等の物性改良のためには、芳香族アミン系ポ
リエーテルポリオールが好適である。As the polyol, aromatic amine-based polyether polyols, aliphatic amine-based polyether polyols, sugar-based polyether polyols and the like can be used. However, in order to improve physical properties such as heat insulation performance, aromatic amine-based polyether polyols are used. It is suitable.
実 施 例 以下、実施例を挙げて本発明の発泡断熱材を説明す
る。EXAMPLES Hereinafter, the foamed heat insulating material of the present invention will be described with reference to examples.
表に一実施例の原料処方を示した。 The raw material formulation of one example is shown in the table.
ポリオールＡは、芳香族アミン系ポリエーテルポリオ
ールで水酸基価460mgKOH/g,ポリオールＢはシュガーグ
リセリン系ポリエーテルポリオールで水酸基価400mgKOH
/g、触媒Ａは花王（株）カオライザーNo.1,整泡剤Ａは
フルオロカーボン系界面活性剤である住友スリーＭ
（株）製FC−170℃，発泡剤ＡはC5F12であり、各原料を
所定の配合部数で混合し、プレミックス成分として構成
する。一方、イソシアネート成分はアミン当量135のク
ルードMDIから成る有機ポリイソシアネートＡから成っ
ている。Polyol A is an aromatic amine polyether polyol having a hydroxyl value of 460 mg KOH / g, and polyol B is a sugar glycerin polyether polyol having a hydroxyl value of 400 mg KOH.
/ g, catalyst A is Kao Co., Ltd. Kaolyzer No. 1, foam stabilizer A is a fluorocarbon surfactant, Sumitomo 3M
Co. FC-170 ° C., foaming agent A is C 5 F 12, mixing each raw material in a predetermined blending parts, constituting as a premix ingredient. On the other hand, the isocyanate component comprises an organic polyisocyanate A comprising crude MDI having an amine equivalent of 135.
表に示す配合処方にて調合したプレミックス成分とイ
ソシアネート成分を所定の配合部数混合し発泡断熱材を
得た。このときのプレックス成分の溶構性及び発泡断熱
材の独立気泡率，熱伝導率10％圧縮強度を表に示した。The premix component and the isocyanate component prepared according to the formulation shown in the table were mixed in a prescribed number of parts to obtain a foamed heat insulating material. The meltability of the plex component, the closed cell ratio of the foam insulation, and the thermal conductivity of 10% compressive strength are shown in the table.
なお、同時に比較例として整泡剤Ｂを使用した発泡断
熱材についても同様に表に示した。整泡剤Ｂは、シリコ
ーン系界面活性剤で信越化学（株）製Ｆ−335である。In addition, at the same time, the foamed heat insulating material using the foam stabilizer B was also shown in the table as a comparative example. Foam stabilizer B is a silicone surfactant, F-335 manufactured by Shin-Etsu Chemical Co., Ltd.
このように本発明の発泡断熱材はプレミックスの溶解
性において問題なく、均一な発泡挙動によって微細均質
な気泡構造が得られる結果、独立気泡率も高く断熱性能
に優れ、かつ高強度のフォーム物性が得られた。このメ
カニズムの詳細は不明であるが、フルオロカーボン系界
面活性剤の分子構造に着眼するとC5F12に対し強い親和
性を有するフルオロアルキル基，ポリオールや有機ポリ
イソシアネートに対し親和性を有するポリエーテル基が
それぞれ親油基，親水基として働くため原料間の表面張
力を低下し、溶解性を改良すると考えられる。この結
果、発泡挙動も均一なものが得られ、破泡現象もなく断
熱性能や強度において優れた物性の発泡断熱材が得られ
るのである。特にフォーム物性改良に効果のある芳香族
アミン系ポリエーテルポリオールの使用も可能となり、
より優れた物性が得られるのである。 As described above, the foamed heat insulating material of the present invention has no problem in the solubility of the premix, and as a result of obtaining a fine and uniform cell structure by uniform foaming behavior, the closed cell ratio is high, the heat insulation performance is excellent, and the foam properties of high strength are high. was gotten. Although the details of this mechanism are unknown, focusing on the molecular structure of fluorocarbon surfactants, fluoroalkyl groups with strong affinity for C 5 F 12 and polyether groups with affinity for polyols and organic polyisocyanates Is considered to act as a lipophilic group and a hydrophilic group, respectively, to lower the surface tension between the raw materials and improve the solubility. As a result, a foamed material having a uniform foaming behavior can be obtained, and a foamed heat-insulating material having excellent physical properties in terms of heat insulation performance and strength can be obtained without a bubble breaking phenomenon. In particular, it is possible to use an aromatic amine-based polyether polyol that is effective in improving foam physical properties.
More excellent physical properties can be obtained.
このように本発明の発泡断熱材はフルオロカーボンC5
F12を発泡剤として使用することによりオゾン層破壊等
の環境問題の解決に寄与すると共にフルオロカーボン系
界面活性剤適用による原料溶解性改善が図れ種々の原料
選択が可能となり優れた断熱性能による省エネルギー化
やフォーム強度向上による品質向上などに貢献できるの
である。Thus, the foam insulation of the present invention is a fluorocarbon C 5
F 12 energy savings due to adiabatic performance material solubility improvement by fluorocarbon surfactant applied together contribute to solving environmental problems such as ozone depletion and excellent enables various material selected Hakare by using as blowing agent And it can contribute to quality improvement by improving foam strength.
なお、比較例においてシリコーン系界面活性剤を使用
した場合では、シュガーグリセリン系ポリエーテルポリ
オールでは溶解可能であるが、芳香族アミン系ポリエー
テルポリオールでは発泡剤と溶解せず不均一な発泡挙動
により破泡し発泡体が得られなかった。又、シュガーグ
リセリン系ポリエーテルポリオールにおいても溶解はす
るものの独立気泡率はやや低く、さらにポリエーテルポ
リオールの組成上の特徴から断熱性能やフォーム強度も
劣る結果となった。In the case of using a silicone-based surfactant in Comparative Examples, the sugar-glycerin-based polyether polyol can be dissolved, but the aromatic amine-based polyether polyol does not dissolve in the foaming agent and breaks due to uneven foaming behavior. It foamed and no foam was obtained. In addition, although the sugar glycerin-based polyether polyol was dissolved, the closed cell ratio was somewhat low, but the heat insulation performance and the foam strength were also inferior due to the compositional characteristics of the polyether polyol.
発明の効果 以上のように本発明は有機ポリイソシアネート，ポリ
オール，触媒，整泡剤成分としてフルオロカーボン系界
面活性剤，発泡剤成分としてフルオロカーボンC5F12を
混合撹拌し、発泡断熱材として生成しているため極性が
小さくポリオールとの溶解性が乏しいフルオロカーボン
C5F12でもフルオロカーボン系界面活性剤により相溶性
が改善し、均一な発泡挙動により均質微細な気泡構造が
生成でき熱伝導率やフォーム強度において優れた物性を
有する発泡断熱材が提供できるのである。特にポリオー
ルとして芳香族アミン系ポリエーテルポリオールを使用
した場合物性改良は著しく効果を発揮することができ
る。このようにフロン公害問題の解決に寄与すると共に
省エネルギーに寄与することができるのである。Effect of the Invention As described above, the present invention is a method of mixing and mixing an organic polyisocyanate, a polyol, a catalyst, a fluorocarbon surfactant as a foam stabilizer component, and a fluorocarbon C 5 F 12 as a foaming agent component to form a foamed heat insulating material. Fluorocarbon with low polarity and poor solubility with polyol
Even with C 5 F 12 , the compatibility is improved by the fluorocarbon surfactant, and a uniform foaming behavior can generate a uniform and fine cell structure, which can provide a foamed heat insulating material having excellent physical properties in terms of thermal conductivity and foam strength. . In particular, when an aromatic amine-based polyether polyol is used as the polyol, the improvement of the physical properties can exert a remarkable effect. In this way, it can contribute to solving the problem of chlorofluorocarbon pollution as well as energy saving.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭52−59359（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) C08J 9/14 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-52-59359 (JP, A) (58) Fields investigated (Int. Cl. 7 , DB name) C08J 9/14
Claims (2)
媒，整泡剤成分としてフルオロカーボン系界面活性剤，
発泡剤成分としてフルオロカーボンC5F12を混合し、発
泡生成した発泡断熱材。An organic polyisocyanate, a polyol, a catalyst, a fluorocarbon surfactant as a foam stabilizer component,
Mixing a fluorocarbon C 5 F 12 as a blowing agent component, foam generated foam insulation.
エーテルポリオールを用いた請求項（１）記載の発泡断
熱材。2. The foamed heat insulating material according to claim 1, wherein an aromatic amine polyether polyol is used as said polyol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2180873A JP3024778B2 (en) | 1990-07-09 | 1990-07-09 | Foam insulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2180873A JP3024778B2 (en) | 1990-07-09 | 1990-07-09 | Foam insulation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0468040A JPH0468040A (en) | 1992-03-03 |
| JP3024778B2 true JP3024778B2 (en) | 2000-03-21 |
Family
ID=16090838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2180873A Expired - Fee Related JP3024778B2 (en) | 1990-07-09 | 1990-07-09 | Foam insulation |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3024778B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003042268A1 (en) * | 2001-11-13 | 2003-05-22 | Daikin Industries, Ltd. | Process for producing synthetic resin foam |
| JP4851366B2 (en) * | 2007-03-02 | 2012-01-11 | 株式会社リコー | Sheet conveying apparatus, image reading apparatus, and image forming apparatus |
-
1990
- 1990-07-09 JP JP2180873A patent/JP3024778B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0468040A (en) | 1992-03-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |