JP5791453B2 - Method for manufacturing composite structure - Google Patents
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- JP5791453B2 JP5791453B2 JP2011217613A JP2011217613A JP5791453B2 JP 5791453 B2 JP5791453 B2 JP 5791453B2 JP 2011217613 A JP2011217613 A JP 2011217613A JP 2011217613 A JP2011217613 A JP 2011217613A JP 5791453 B2 JP5791453 B2 JP 5791453B2
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- silane coupling
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- 239000002131 composite material Substances 0.000 title claims description 23
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- 238000000034 method Methods 0.000 title description 10
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 20
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 12
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 12
- 239000004698 Polyethylene Substances 0.000 claims description 5
- 238000005304 joining Methods 0.000 claims description 5
- -1 polyethylene Polymers 0.000 claims description 5
- 229920000515 polycarbonate Polymers 0.000 claims description 4
- 239000004417 polycarbonate Substances 0.000 claims description 4
- 229920000728 polyester Polymers 0.000 claims description 4
- 229920000573 polyethylene Polymers 0.000 claims description 4
- 238000002834 transmittance Methods 0.000 claims description 4
- 239000005871 repellent Substances 0.000 description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 24
- 230000002940 repellent Effects 0.000 description 12
- 238000009413 insulation Methods 0.000 description 10
- 239000005357 flat glass Substances 0.000 description 6
- 239000011521 glass Substances 0.000 description 5
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 229910052731 fluorine Inorganic materials 0.000 description 4
- 239000011737 fluorine Substances 0.000 description 4
- 230000002209 hydrophobic effect Effects 0.000 description 4
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 3
- 239000005977 Ethylene Substances 0.000 description 3
- 229910003087 TiOx Inorganic materials 0.000 description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 3
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- HLLICFJUWSZHRJ-UHFFFAOYSA-N tioxidazole Chemical compound CCCOC1=CC=C2N=C(NC(=O)OC)SC2=C1 HLLICFJUWSZHRJ-UHFFFAOYSA-N 0.000 description 3
- 239000004593 Epoxy Substances 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 239000007822 coupling agent Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 238000009832 plasma treatment Methods 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 1
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 1
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 1
- 229920002799 BoPET Polymers 0.000 description 1
- CHDVXKLFZBWKEN-UHFFFAOYSA-N C=C.F.F.F.Cl Chemical compound C=C.F.F.F.Cl CHDVXKLFZBWKEN-UHFFFAOYSA-N 0.000 description 1
- HRPWYKJYMAGADJ-UHFFFAOYSA-N C=C.FC(C(F)=C(F)F)(F)F.F.F.F.F Chemical group C=C.FC(C(F)=C(F)F)(F)F.F.F.F.F HRPWYKJYMAGADJ-UHFFFAOYSA-N 0.000 description 1
- 239000005642 Oleic acid Substances 0.000 description 1
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 229920006026 co-polymeric resin Polymers 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000003851 corona treatment Methods 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003925 fat Substances 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 1
- 125000002524 organometallic group Chemical group 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 229920002493 poly(chlorotrifluoroethylene) Polymers 0.000 description 1
- 229920005668 polycarbonate resin Polymers 0.000 description 1
- 239000004431 polycarbonate resin Substances 0.000 description 1
- 239000005023 polychlorotrifluoroethylene (PCTFE) polymer Substances 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920013716 polyethylene resin Polymers 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- FZHAPNGMFPVSLP-UHFFFAOYSA-N silanamine Chemical compound [SiH3]N FZHAPNGMFPVSLP-UHFFFAOYSA-N 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000003981 vehicle Substances 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
Landscapes
- Protection Of Plants (AREA)
- Greenhouses (AREA)
- Building Environments (AREA)
- Laminated Bodies (AREA)
Description
本発明は、断熱性と疎水性とを有するシート状の複合構造体に関する。 The present invention relates to a sheet-like composite structure having heat insulating properties and hydrophobic properties.
エネルギー問題は世界的課題になっており、消費エネルギーの低減および代替エネルギーの技術開発が盛んに行われている。また、関連製品も数多く市場に出回っている。
例えば、地球温暖化が進行したことから、太陽光からの熱エネルギーによるビル、住宅、自動車等の室内温度上昇は深刻であり、こうした生活環境保全に使用される空調負荷低減も消費エネルギーの低減の観点から重要である。そのため、遮熱フィルムやLow-e複層ガラス等が急速に普及している。
The energy problem has become a global issue, and energy consumption reduction and alternative energy technology development are actively carried out. There are also many related products on the market.
For example, as global warming has progressed, the rise in indoor temperatures of buildings, houses, cars, etc. due to thermal energy from sunlight is serious. Important from the point of view. For this reason, thermal barrier films, low-e double glazing, and the like are rapidly spreading.
また、冬季暖房により保持された室内温度(熱)が窓ガラスを通して外部へ飛散することを抑制する、窓ガラスに貼って使用する透明断熱フィルムも販売されている。
他方、特に冬季に室内温度に対し外気温度が低く窓ガラスが結露し、それにより視界が妨げられたり、結露した水滴による窓ガラスの汚れやカビの発生等が安全上また住空間の環境保全上問題となっている。特に自動車の場合、冬季のガラスの曇りは安全上大きな問題でその解消には電力を消費する。従来の化石燃料の燃焼を動力源にする自動車から電池との併用によるハイブリッドや電気自動車へのシフトが進むにつれ益々電池への負荷が大きくなる。電池負荷低減のためにも防曇対策は緊急の課題となっている。
Moreover, the transparent heat insulation film used by sticking to the window glass which suppresses that indoor temperature (heat) hold | maintained by winter heating is scattered outside through a window glass is also marketed.
On the other hand, especially in winter, the outdoor temperature is low compared to the room temperature, and the window glass condenses, which impedes visibility, and the window glass is contaminated and moldy due to condensed water droplets for safety and environmental protection of the living space. It is a problem. Especially in the case of automobiles, fogging of glass in winter is a big safety issue and consumes electric power to solve it. As the shift from conventional automobiles that use fossil fuel combustion as a power source to hybrid and electric cars using batteries together, the load on the batteries increases. Anti-fogging measures have become an urgent issue to reduce battery load.
窓ガラス等の結露抑制方法としてガラス表面に断熱フィルム等を介在させ低温外面による内面の温度低下を防ぐことにより防曇する方法があり、多くの製品が販売されている。また、断熱フィルムの表面に電子線照射により架橋した親水性膜を形成することで、防曇機能を高めた防曇性断熱シートが提案されている(特許文献1参照)。 As a method for suppressing dew condensation on window glass or the like, there is a method for preventing fogging by interposing a heat insulating film or the like on the glass surface to prevent a temperature drop of the inner surface due to the low temperature outer surface, and many products are sold. Moreover, the anti-fogging heat insulation sheet which improved the anti-fogging function by forming the hydrophilic film bridge | crosslinked by electron beam irradiation on the surface of a heat insulation film is proposed (refer patent document 1).
特許文献1に示すように、表面を親水性とすることで防曇機能を発揮させるシートは従来あったが、微細な水滴を弾くような高い疎水性を得られる防曇断熱シートは提案されていない。 As shown in Patent Document 1, there has been a sheet that exhibits the antifogging function by making the surface hydrophilic, but an antifogging heat insulating sheet capable of obtaining high hydrophobicity that repels fine water droplets has been proposed. Absent.
本発明の目的は、断熱性と疎水性とを有する複合構造体および当該複合構造体の製造方法を提供することである。 The objective of this invention is providing the composite structure which has heat insulation and hydrophobicity, and the manufacturing method of the said composite structure.
上述した問題を解決するためになされた複合構造体は、フッ素系樹脂を主成分とする第1のフィルムと、ポリエチレン、ポリエステル、およびポリカーボネートからなる群から選択される1種以上を主成分とする第2のフィルムと、チタン酸化物を主成分とし、前記第1のフィルムと前記第2のフィルムとの間に形成される中間層と、を有し、前記中間層と前記第2のフィルムとは、シランカップリング剤またはチタネートカップリング剤により接合されている、複合構造体である。 The composite structure made in order to solve the above-mentioned problem has, as a main component, at least one selected from the group consisting of a first film mainly composed of a fluororesin and polyethylene, polyester, and polycarbonate. A second film, and an intermediate layer mainly composed of titanium oxide and formed between the first film and the second film, the intermediate layer and the second film, Is a composite structure joined by a silane coupling agent or a titanate coupling agent.
従来は上記第1のフィルムと第2のフィルムを接合することが困難であったが、本発明の発明者は第1のフィルム上にチタン酸化物の層を形成し、その層と第2のフィルムとをシランカップリング剤により接合させることで、第1のフィルムと第2のフィルムとを接合可能であることを発見した。 Conventionally, it has been difficult to join the first film and the second film, but the inventor of the present invention forms a titanium oxide layer on the first film, and the layer and the second film. It was discovered that the first film and the second film can be joined by joining the film with a silane coupling agent.
上記構成の複合構造体は、第1のフィルムが高い疎水性(撥水性)を有しており、また、第2のフィルムが高い断熱性を有している。従って、この複合構造体は、断熱性と疎水性とを同時に有し、様々な場面で活用することができる。 In the composite structure having the above structure, the first film has high hydrophobicity (water repellency), and the second film has high heat insulation. Therefore, this composite structure has both heat insulating properties and hydrophobic properties, and can be used in various situations.
本発明の複合構造体は、シート状に形成することで、ガラス面、壁、あるいはさまざまな物の表面に貼り付けて使用することができる。
本発明の複合構造体における第1のフィルムおよび第2のフィルムは、可視光透過率が75%以上のものを用いてもよい。このようなに複合構造体を構成することで、ガラス面などの視認性が必要な面で用いることができる。特に車両用のガラスとして用いると優れた効果を発揮することができる。
By forming the composite structure of the present invention into a sheet shape, it can be used by being attached to a glass surface, a wall, or the surface of various objects.
As the first film and the second film in the composite structure of the present invention, those having a visible light transmittance of 75% or more may be used. By configuring the composite structure as described above, it can be used on a surface requiring visibility such as a glass surface. In particular, when used as vehicle glass, excellent effects can be exhibited.
上述した中間層は、2nm〜1000nmの厚さのチタン酸化膜としてもよい。このようにチタン酸化膜を薄く形成することで、複合構造体全体としての視認性を向上させることができる。 The intermediate layer described above may be a titanium oxide film having a thickness of 2 nm to 1000 nm. Thus, the visibility as the whole composite structure can be improved by forming a thin titanium oxide film.
また、上述した問題を解決するためになされた請求項1に記載の発明は、フッ素系樹脂を主成分とする第1のフィルムにチタン酸化物を主成分とする中間層を形成する工程と、前記中間層が形成された第1のフィルムに第1のシランカップリング剤被膜を形成する工程と、ポリエチレン、ポリエステル、およびポリカーボネートからなる群から選択される1種以上を主成分とする第2のフィルムに第2のシランカップリング剤被膜を形成する工程と、前記第1のシランカップリング剤被膜が形成された中間層と、前記第2のシランカップリング剤被膜が形成された第2のフィルムと、を接合する工程と、を有する複合構造体の製造方法である。 The invention according to claim 1 , which has been made to solve the above-described problem, includes a step of forming an intermediate layer mainly composed of titanium oxide on a first film mainly composed of a fluorine-based resin, A step of forming a first silane coupling agent film on the first film on which the intermediate layer is formed, and a second main component comprising at least one selected from the group consisting of polyethylene, polyester, and polycarbonate. A step of forming a second silane coupling agent film on the film; an intermediate layer on which the first silane coupling agent film is formed; and a second film on which the second silane coupling agent film is formed. And a step of bonding the composite structure.
このような製造方法では、第1のフィルムと第2のフィルムを中間層を介して接合することが可能となり、断熱性と疎水性とを有する複合構造体を製造することが可能となる。 In such a production method, the first film and the second film can be bonded via the intermediate layer, and a composite structure having heat insulating properties and hydrophobic properties can be produced.
以下に本発明の実施形態を図面と共に説明する。
複合構造体1は、図1に示すように、フッ素系樹脂を主成分とする撥水フィルム11と、ポリエチレン、ポリエステル、およびポリカーボネートからなる群から選択される1種以上を主成分とする断熱フィルム13と、チタン酸化物を主成分とし、撥水フィルム11と断熱フィルム13との間に形成される中間層15と、を有する。なお、撥水フィルム11が本発明の第1のフィルムの例であり、断熱フィルム13が本発明の第2のフィルムの例である。
Embodiments of the present invention will be described below with reference to the drawings.
As shown in FIG. 1, the composite structure 1 includes a water-repellent film 11 mainly composed of a fluororesin, and a heat insulating film mainly composed of one or more selected from the group consisting of polyethylene, polyester, and polycarbonate. 13 and an intermediate layer 15 which is mainly composed of titanium oxide and is formed between the water repellent film 11 and the heat insulating film 13. In addition, the water repellent film 11 is an example of the 1st film of this invention, and the heat insulation film 13 is an example of the 2nd film of this invention.
複合構造体1は断熱機能と防曇機能とを有する。防曇機能は、撥水フィルム11によって実現する。具体的には表面を疎水化(撥水化)することで、結露した水滴が撥水化した表面では微小な水滴となりさらに複数個が凝集し水滴となり重力に引かれすべり落ちることにより防曇効果を発揮する。 The composite structure 1 has a heat insulating function and an antifogging function. The anti-fogging function is realized by the water repellent film 11. Specifically, by making the surface hydrophobic (water-repellent), the condensed water droplets become minute water droplets on the water-repellent surface, and a plurality of water droplets aggregate to form water droplets and slide down due to gravity. Demonstrate.
撥水フィルム11としては、PCTFE(三フッ化塩化エチレン)フィルム、FEP(四フッ化エチレンー六フッ化プロピレン共重合体)フィルム、PFA(四フッ化エチレンパーフロロアルキルビニルエーテル共重合体)フィルム、PTFE(ポリテトラフルオロエチレン)などのフッ素を含有する(ポリ)エチレン系透明フィルムなどを用いることができる。これらのフィルムにおいて、表面エネルギーが18〜50dyn/cm(=mN/m)のもの、特に18〜30dyn/cmのものを用いることで、顕著な撥水性を得ることができる。
従来、表面に微細な凹凸をつけることにより撥水性を向上させたシートが提案されているが、こうした表面改質フィルムは手で触れたりこすったりすることにより表面の微細構造が壊れ撥水性が失われるだけではなく、付着した油脂(例えば手の油はその大半がオレイン酸)が微細構造に埋め込まれ汚れとなっていた。特に自動車の運転席、助手席の窓ガラスにおいて使用できる厳しい耐久テストをクリアできる撥水表面はなかった。
しかしながら、上述したフッ素を含有するエチレン系透明フィルムは、比較的価格で且つバルクフィルムであり低摩擦係数であることが知られている。つまり、これらのフィルムは撥水性に関しては表面微細構造フィルムに劣る場合があるものの、たとえ傷つき擦り減ってもバルクフィルムであるため一定の撥水性を維持することができる。
The water-repellent film 11 includes a PCTFE (ethylene trifluoride chloride) film, an FEP (tetrafluoroethylene-hexafluoropropylene copolymer) film, a PFA (tetrafluoroethylene perfluoroalkyl vinyl ether copolymer) film, and PTFE. A (poly) ethylene-based transparent film containing fluorine such as (polytetrafluoroethylene) can be used. In these films, a remarkable water repellency can be obtained by using a film having a surface energy of 18 to 50 dyn / cm (= mN / m), particularly 18 to 30 dyn / cm.
Conventionally, a sheet with improved water repellency by providing fine irregularities on the surface has been proposed, but such surface-modified films are damaged by touching or rubbing with a hand, and the surface microstructure is broken. In addition, the attached fats and oils (for example, hand oil is mostly oleic acid) are embedded in the fine structure and become dirty. In particular, there was no water-repellent surface that could pass the strict durability test that can be used in the window glass of the driver's seat and passenger seat.
However, it is known that the above-described ethylene-based transparent film containing fluorine is relatively expensive, is a bulk film, and has a low coefficient of friction. That is, although these films may be inferior to the surface microstructure film in terms of water repellency, even if they are scratched and worn, they are bulk films and can maintain a certain water repellency.
また撥水フィルム11として、可視光透過率75%以上のものを用いることで、高い視認性が必要な箇所にも用いることができる。
また、四フッ化エチレンフィルムを用いると、通常では白濁し不透明となるため、非常に薄く形成したり、透過性を有するように構造を調整したものを用いることができる。
Moreover, by using a film having a visible light transmittance of 75% or more as the water repellent film 11, it can be used in places where high visibility is required.
Further, when a tetrafluoroethylene film is used, it usually becomes cloudy and opaque, so that it can be formed very thin or a structure whose structure is adjusted to have transparency.
フィルム厚は50μm〜300μmのものを用いることができる。これらの撥水フィルムは水滴の付着を妨げる効果がある。
断熱フィルム13としては、ポリエチレン、ポリエステル、ポリカーボネート系の樹脂フィルムを用いることもできる。フィルム厚は50μm〜100μmのものを用いることができる。また、中空のナノバルーンが10〜50%ほど混入分散していてもよい。
A film thickness of 50 μm to 300 μm can be used. These water-repellent films have the effect of preventing the adhesion of water droplets.
As the heat insulation film 13, a polyethylene, polyester, or polycarbonate resin film may be used. A film thickness of 50 μm to 100 μm can be used. Further, hollow nanoballoons may be mixed and dispersed by about 10 to 50%.
中間層15は、チタン酸化物(TiOx, x=1.5〜2.0)層である。中間層15の具体的な形成方法は、有機金属チタンの加水分解によりTiOx層を形成する方法や、真空成膜法により撥水フィルム11にTiOx層を形成する方法などがある。中間層15の厚さは極力薄いのが良いが通常2nm〜1000nmとする。 The intermediate layer 15 is a titanium oxide (TiOx, x = 1.5 to 2.0) layer. Specific methods for forming the intermediate layer 15 include a method of forming a TiOx layer by hydrolysis of organometallic titanium, and a method of forming a TiOx layer on the water repellent film 11 by a vacuum film forming method. The thickness of the intermediate layer 15 is preferably as thin as possible, but is usually 2 nm to 1000 nm.
なお、撥水フィルム11のフッ素系樹脂の表面エネルギーはおおよそ20dyn/cm程度であり撥水表面を呈することから多くの対象物と接合が困難であるが、チタン酸化物は比較的良好に接合させることができる。なお、チタン酸化物を形成する撥水フィルム11表面には予めプラズマ処理などの表面処理を施しても良い。 The surface energy of the fluororesin of the water-repellent film 11 is approximately 20 dyn / cm and exhibits a water-repellent surface, so that it is difficult to bond to many objects, but titanium oxide is bonded relatively well. be able to. The surface of the water repellent film 11 on which titanium oxide is formed may be subjected to surface treatment such as plasma treatment in advance.
中間層15は、まず撥水フィルム11上に形成される。中間層15と断熱フィルム13との接合にはシランカップリング剤またはチタネートカップリング剤を用いる。その際、例えば断熱フィルム13側には、エポキシ系のシランカップリング剤を用いることができ、接合層15側には、アミノ系のシランカップリング剤を用いることができる。 The intermediate layer 15 is first formed on the water repellent film 11. A silane coupling agent or a titanate coupling agent is used for joining the intermediate layer 15 and the heat insulating film 13. At that time, for example, an epoxy silane coupling agent can be used on the heat insulating film 13 side, and an amino silane coupling agent can be used on the bonding layer 15 side.
以下に本発明の実施例を記載する。なお本発明は実施例に何ら限定されることはなく、本発明の技術的範囲に属する限り種々の形態をとり得ることはいうまでもない。
[実施例1]
本実施例では、本発明の複合構造体からなる断熱防曇フィルムを作成した。
Examples of the present invention will be described below. In addition, this invention is not limited to an Example at all, and as long as it belongs to the technical scope of this invention, it cannot be overemphasized that various forms can be taken.
[Example 1]
In this example, a heat insulating anti-fogging film comprising the composite structure of the present invention was prepared.
撥水フィルムとして、フッ素系フィルムで市販のニラコ製FEP(四フッ化エチレン‐六フッ化プロピレン共重合樹脂フィルム、50μm厚)を用いた。
また、断熱フィルムとして、東洋包材製CA80(PET系フィルム、80μm厚)を用いた。上記FEP、CA80は共に可視光透過率は80%である。
As a water-repellent film, a commercially available Niraco FEP (ethylene tetrafluoride-hexafluoropropylene copolymer resin film, 50 μm thick) was used as a fluorine-based film.
As the heat insulating film, Toyo Packaging CA80 (PET film, 80 μm thickness) was used. Both the FEP and CA80 have a visible light transmittance of 80%.
本実施例では、撥水フィルムと断熱フィルムとの接合界面にごく薄いTi酸化膜からなる中間層を挿入することで、撥水フィルムと断熱フィルムとの接合を実現している。接合手順を以下に説明する。 In this example, the intermediate layer made of a very thin Ti oxide film is inserted into the bonding interface between the water repellent film and the heat insulating film, thereby realizing the bonding between the water repellent film and the heat insulating film. The joining procedure will be described below.
まず、撥水フィルムの表面を減圧グロー-プラズマ処理(RF300W, 10分)し、大気に晒すことなくスパッタリング法によりチタン酸化膜(TiO2膜)を100nm以下の厚さにて成膜した。 First, the surface of the water-repellent film was subjected to reduced-pressure glow-plasma treatment (RF 300 W, 10 minutes), and a titanium oxide film (TiO 2 film) was formed to a thickness of 100 nm or less by a sputtering method without being exposed to the atmosphere.
次に、撥水フィルムに形成された中間層の表面を大気コロナプラズマ処理し、その後、信越化学製シランカップリング剤KBM903(アミノ系)のガス蒸気に暴露し中間層の表面にシランカップリング剤を吸着させた。 Next, the surface of the intermediate layer formed on the water repellent film is treated with atmospheric corona plasma, and then exposed to the gas vapor of silane coupling agent KBM903 (amino) manufactured by Shin-Etsu Chemical Co., Ltd. to expose the surface of the intermediate layer to the silane coupling agent. Was adsorbed.
次に、断熱フィルムを大気中で大気コロナ処理し、その後、信越化学製シランカップリング剤KBM403(エポキシ系)のガス蒸気に暴露し、断熱フィルム表面にシランカップリング剤を吸着させた。 Next, the heat insulating film was subjected to an air corona treatment in the air, and then exposed to a gas vapor of a silane coupling agent KBM403 (epoxy system) manufactured by Shin-Etsu Chemical Co., Ltd. to adsorb the silane coupling agent on the surface of the heat insulating film.
次に、中間層および断熱フィルムのシランカップリング剤を吸着させた(シランカップリング剤被膜を形成した)面同士をラミネーターにより貼り合わせ、130℃10分の熱処理により接合を完成させた。このようにして、断熱防曇フィルムを製造した。なお、シランカップリング剤を用いた接合方法としては、WO/2011/010738に記載された手法を用いることができる。 Next, the surfaces of the intermediate layer and the heat insulating film on which the silane coupling agent was adsorbed (the silane coupling agent film was formed) were bonded together by a laminator, and the joining was completed by heat treatment at 130 ° C. for 10 minutes. Thus, the heat insulation anti-fog film was manufactured. As a bonding method using a silane coupling agent, the technique described in WO / 2011/010738 can be used.
このように製造された断熱防曇フィルムは、断熱は空調機の省エネ換算で約30%の効果とともに、FEPフィルムの高い撥水特性から防曇特性が確認された。
本発明の複合構造体(断熱防曇フィルム)は、断熱フィルムにより結露面の温度低下が30%程度緩和され一定の防曇効果が期待できる。しかし、寒冷地等では厳しい温度差により露点をきり結露することが予測されるが、エチレン系撥水フィルムなどの撥水フィルムの存在により結露をさらに緩和することができる。
The heat-insulating anti-fogging film produced in this way was confirmed to have an anti-fogging property due to the high water-repellent property of the FEP film, together with an effect of about 30% of heat insulation in terms of energy saving of the air conditioner.
The composite structure (heat-insulating anti-fogging film) of the present invention can be expected to have a certain anti-fogging effect because the temperature decrease of the dew condensation surface is reduced by about 30% by the heat-insulating film. However, in cold districts and the like, it is predicted that the dew point will dew due to a severe temperature difference, but dew condensation can be further mitigated by the presence of a water repellent film such as an ethylene water repellent film.
1…複合構造体、11…撥水フィルム、13…断熱フィルム、15…中間層 DESCRIPTION OF SYMBOLS 1 ... Composite structure, 11 ... Water-repellent film, 13 ... Heat insulation film, 15 ... Intermediate layer
Claims (3)
前記中間層が形成された第1のフィルムに第1のシランカップリング剤被膜を形成する工程と、
ポリエチレン、ポリエステル、およびポリカーボネートからなる群から選択される1種以上を主成分とする第2のフィルムに第2のシランカップリング剤被膜を形成する工程と、
前記第1のシランカップリング剤被膜が形成された中間層と、前記第2のシランカップリング剤被膜が形成された第2のフィルムと、を接合する工程と、を有する複合構造体の製造方法。 Forming an intermediate layer mainly composed of titanium oxide on the first film mainly composed of a fluororesin;
Forming a first silane coupling agent film on the first film having the intermediate layer formed thereon;
Forming a second silane coupling agent film on a second film comprising as a main component one or more selected from the group consisting of polyethylene, polyester, and polycarbonate;
A method of manufacturing a composite structure, comprising: joining an intermediate layer on which the first silane coupling agent film is formed and a second film on which the second silane coupling agent film is formed. .
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