JPH0544916B2 - - Google Patents
Info
- Publication number
- JPH0544916B2 JPH0544916B2 JP62057480A JP5748087A JPH0544916B2 JP H0544916 B2 JPH0544916 B2 JP H0544916B2 JP 62057480 A JP62057480 A JP 62057480A JP 5748087 A JP5748087 A JP 5748087A JP H0544916 B2 JPH0544916 B2 JP H0544916B2
- Authority
- JP
- Japan
- Prior art keywords
- layer
- ptfe
- silicone resin
- fiber cloth
- silica powder
- 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 - Lifetime
Links
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/04—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N7/00—Flexible sheet materials not otherwise provided for, e.g. textile threads, filaments, yarns or tow, glued on macromolecular material
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Laminated Bodies (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明はガラス繊維布を基材とする耐水性に優
れた膜構造材に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a membrane structure material having excellent water resistance and having glass fiber cloth as a base material.
（従来の技術）
近年、野球場、体育館等のような建築物の屋根
に空気膜構造やテンシヨン構造を適用する例が増
加しつつある。(Prior Art) In recent years, examples of applying an air membrane structure or a tension structure to the roofs of buildings such as baseball stadiums, gymnasiums, etc. are increasing.
これら空気膜構造、テンシヨン構造は下記(a)〜
(c)のような特徴を有している。 These air membrane structures and tension structures are shown in (a) below.
It has the characteristics shown in (c).
(a) 膜屋根重量が小さく大スパン構造が可能とな
ること。(a) The weight of the membrane roof is small and a large span structure is possible.
(b) 透光性を有するので昼間の人工照明は不要で
あり、しかも透過光は影の無いやわらかなもの
となり、戸外にいるような全く新しい室内空間
を作り出せること。(b) Since it has translucent properties, artificial lighting during the daytime is not necessary, and the transmitted light is soft without shadows, creating a completely new indoor space that feels like being outdoors.
(c) 屋根の施工作業に要する工期短縮が可能であ
ること。(c) It is possible to shorten the construction period required for roof construction work.
そして、上記屋根構造の材料としては、特公昭
55−7148号公報に開示されているように、ガラス
繊維布の表面にシリコーン樹脂層、ポリテトラフ
ルオロエチレン（以下、PTFEと称す）層および
ガラスビード含有PTFE層を順次形成せしめて成
るものが知られている。 The material for the roof structure mentioned above is
As disclosed in Japanese Patent No. 55-7148, it is known that a silicone resin layer, a polytetrafluoroethylene (hereinafter referred to as PTFE) layer, and a glass bead-containing PTFE layer are sequentially formed on the surface of a glass fiber cloth. It is being
（発明が解決しようとする問題点）
かような屋根構造材料には当然のことながら、
長期の耐候性が要求される。そして、上記屋根構
造材料の耐候性レベルはかなり高水準ではある
が、特性レベルアツプに対する期待も強い。従つ
て、本発明は屋根構造材料の耐候性の向上をその
目的とする。(Problems to be solved by the invention) Naturally, such roof structural materials have the following problems:
Long-term weather resistance is required. Although the weather resistance level of the above-mentioned roof structural materials is at a fairly high level, there are strong expectations for the level of properties to be improved. Therefore, the object of the present invention is to improve the weather resistance of roof structural materials.
（問題点を解決するための手段）
本発明はガラス繊維布を基材とする屋根構造材
料の耐候性のメカニズムの解明に努め、該材料の
耐候性を左右する主要因の１つは該材料の吸水率
であること、吸水は基材表面に形成される樹脂層
のマツドクラツクやピンホールによつて誘発され
ること、および吸水率の増加により強度が低下
し、耐候性が悪化すること、を知つた。(Means for Solving the Problems) The present invention strives to elucidate the mechanism of weather resistance of roof structural materials based on glass fiber cloth, and one of the main factors that influences the weather resistance of the material is the material , water absorption is induced by pine cracks and pinholes in the resin layer formed on the surface of the base material, and an increase in water absorption reduces strength and worsens weather resistance. I knew.
そして、本発明者はこの屋根構造材料の吸水率
を小さくし、耐候性を向上させる方法を検討する
うちに、ガラスビードに代えシリカ粉末を用いる
とその目的が達成できることを知り、本発明に至
つた。 While investigating ways to reduce the water absorption rate and improve weather resistance of this roof structural material, the inventor learned that the purpose could be achieved by using silica powder instead of glass beads, leading to the present invention. Ivy.
即ち、本発明に係る耐水性膜構造材は、ガラス
繊維布の表面にシリコーン樹脂層、PTFE層およ
びシリカ粉末含有PTFE層が順次形成されて成る
ものである。 That is, the water-resistant membrane structure material according to the present invention is formed by sequentially forming a silicone resin layer, a PTFE layer, and a silica powder-containing PTFE layer on the surface of a glass fiber cloth.
本発明に係る耐水性膜構造材は例えば、ガラス
繊維布にシリコーン樹脂含有液を塗布して加熱す
ることにより、該樹脂をガラス繊維布に含浸する
と共にその表面に薄層状に焼付け、次にPTFE含
有液を塗布して加熱し、シリコーン樹脂層上に
PTFE層を形成し、その後シリカ粉末とPTFEの
両者を含有する液をPTFE層上に塗布して加熱
し、シリカ粉末含有PTFE層を形成する方法によ
つて製造し得る。 The water-resistant membrane structure material according to the present invention is produced by, for example, coating a glass fiber cloth with a silicone resin-containing solution and heating it to impregnate the glass fiber cloth with the resin and baking it into a thin layer on the surface of the glass fiber cloth. Apply the liquid containing it, heat it, and apply it onto the silicone resin layer.
It can be manufactured by a method in which a PTFE layer is formed, and then a liquid containing both silica powder and PTFE is applied onto the PTFE layer and heated to form a silica powder-containing PTFE layer.
シリコーン樹脂は信越化学工業(株)、東レシリコ
ーン(株)或いはダウコーニング社等からそのエマル
ジヨンやデイスバージヨンが市販されており、こ
れらを用いることもできる。 Emulsions and dispersions of silicone resins are commercially available from Shin-Etsu Chemical Co., Ltd., Toray Silicone Co., Ltd., Dow Corning Co., Ltd., etc., and these can also be used.
ガラス繊維布にシリコーン樹脂を含浸せしめる
と共に薄層形成した際の、シリコーン樹脂の付着
量が多くなると、得られる膜構造材の柔軟性は増
すが、該布とシリコーン樹脂との密着力が低下
し、機械的ストレスの作用により層間剥離を生ず
ることがあることが判明した。一方、シリコーン
樹脂の付着量が少なくなると、得られる膜構造材
は硬くなり、布に折れ或いは亀裂を生ずることが
あることも判明している。 When glass fiber cloth is impregnated with silicone resin and formed into a thin layer, if the amount of silicone resin adhered increases, the flexibility of the resulting membrane structure material increases, but the adhesion between the cloth and the silicone resin decreases. It has been found that delamination may occur due to the action of mechanical stress. On the other hand, it has been found that when the amount of silicone resin deposited decreases, the obtained membrane structure material becomes hard, which may cause folds or cracks in the fabric.
従つて、本発明においてはシリコーン樹脂のガ
ラス繊維布に対する付着量を通常約10ｇ／m2以
下、好ましくは約４〜６ｇ／m2とする。 Therefore, in the present invention, the amount of silicone resin adhered to the glass fiber cloth is usually about 10 g/m 2 or less, preferably about 4 to 6 g/m 2 .
また、シリコーン樹脂層上に順次形成される
PTFE層およびシリカ粉末含有PTFE層を形成す
るPTFEとしては、従来用いられていた分子量２
×106以下の粉末を用いることもできるが、塗膜
強度やシリコーン樹脂との密着力の観点から分子
量３×106〜４×106のものを用いるのがより好適
である。 Also, the silicone resin layer is formed sequentially on the silicone resin layer.
The PTFE that forms the PTFE layer and the silica powder-containing PTFE layer has a molecular weight of 2, which is conventionally used.
Although a powder having a molecular weight of 3×10 6 or less may be used, it is more preferable to use a powder having a molecular weight of 3×10 6 to 4×10 6 from the viewpoint of coating strength and adhesion to the silicone resin.
なお、シリコーン樹脂層上に順次形成される
PTFE層およびシリカ粉末含有PTFE層の付着量
は特に限定されるわけではないが、通常、前者が
300〜350ｇ／m2であり、後者が350〜400ｇ／m2で
ある。 Note that the silicone resin layer is sequentially formed on the silicone resin layer.
The amount of the PTFE layer and the PTFE layer containing silica powder is not particularly limited, but the former is usually
300-350g/ m2 , and the latter is 350-400g/ m2 .
また、シリカ含有PTFE層を形成するのに用い
るシリカ粉末としては粒径20μm以下のものが好
適であり、この粉末はPTFE100重量部に対し、
通常５〜10重量部である。 In addition, the silica powder used to form the silica-containing PTFE layer preferably has a particle size of 20 μm or less, and this powder has a
It is usually 5 to 10 parts by weight.
本発明は上記のようにガラス繊維布上にシリコ
ーン樹脂層、PTFE層およびシリカ粉末含有
PTFE層を順次形成したものであるが、更に所望
によりテトラフルオロエチレン−ヘキサフルオロ
プロピレン共重合体（以下、FEPと称す）、
PTFE、テトラフルオロエチレン−パーフルオロ
アルキルビニルエーテル共重合体等から成る層を
シリカ粉末含有PTFE層上に形成し、保護層とす
ることもできる。 As described above, the present invention contains a silicone resin layer, a PTFE layer, and a silica powder layer on a glass fiber cloth.
PTFE layers are sequentially formed, and if desired, tetrafluoroethylene-hexafluoropropylene copolymer (hereinafter referred to as FEP),
A layer made of PTFE, tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer, or the like can also be formed on the silica powder-containing PTFE layer to serve as a protective layer.
かような本発明に係る膜構造材は従来品と同様
に空気膜構造やテンシヨン構造の屋根材として使
用し得る他、吸水率が小さくて耐候性が優れてい
るので、水中で使用するオイルフエンス、パラボ
ラアンテナのカバー等への適用も可能である。 The membrane structure material according to the present invention can be used as a roofing material for an air membrane structure or a tension structure in the same way as conventional products, and has a low water absorption rate and excellent weather resistance, so it can be used as an oil fence used underwater. It is also possible to apply it to covers of parabolic antennas, etc.
（実施例）
以下、図面を参照しながら実施例により本発明
を更に詳細に説明する。(Examples) Hereinafter, the present invention will be explained in more detail by examples with reference to the drawings.
実施例
ガラス繊維布１（カネボウ社製、商品名
KS2486）を370℃で150秒間加熱し、サイジング
剤および異物を除去する。Example Glass fiber cloth 1 (manufactured by Kanebo Co., Ltd., product name
KS2486) at 370°C for 150 seconds to remove the sizing agent and foreign matter.
この繊維布をシリコーン樹脂濃度1.9重量％の
エマルジヨン（ダウコーニング社製、商品名ET
−4327）中に浸漬して引き上げ、290℃で150秒間
加熱し、該繊維布にシリコーン樹脂を含浸すると
共にその表面にシリコーン樹脂層２を形成する。
なお、このときのシリコーン樹脂の繊維布に対す
る付着量は５ｇ／m2である。 This fiber cloth was coated with an emulsion containing a silicone resin concentration of 1.9% by weight (manufactured by Dow Corning, trade name: ET).
-4327), then pulled up and heated at 290°C for 150 seconds to impregnate the fiber cloth with silicone resin and form a silicone resin layer 2 on its surface.
Note that the amount of silicone resin adhered to the fiber cloth at this time was 5 g/m 2 .
次に、PTFE粉末濃度40重量％のデイスパージ
ヨン（ダイキン社製、商品名Ｄ−2C）をシリコ
ーン樹脂層２上に塗布し、370℃で３分間加熱す
る。更に、デイスパージヨンの塗布および加熱を
繰り返し、PTFEの付着量330ｇ／m2のPTFE層
３を形成する。 Next, a dispersion (manufactured by Daikin, trade name: D-2C) having a PTFE powder concentration of 40% by weight is applied onto the silicone resin layer 2 and heated at 370°C for 3 minutes. Further, dispersion application and heating were repeated to form a PTFE layer 3 with a PTFE deposition amount of 330 g/m 2 .
その後、シリカ粉末とPTFE粉末の両者を含む
デイスパージヨン（ダイキン社製、商品名Ｄ−
2TX、濃度55重量％）をPTFE層上に塗布し、
370℃で３分間加熱する。この塗布および加熱を
繰り返し、シリカ粉末およびPTFEの付着量400
ｇ／m2のシリカ粉末含有PTFE層４を形成する。
なお、シリカ粉末の粒径は20μm以下であり、デ
イスパージヨン中においてはPTFE粉末100重量
部に対し、シリカ粉末が８重量部配合されてい
る。 After that, a dispersion containing both silica powder and PTFE powder (manufactured by Daikin, product name D-
2TX, concentration 55% by weight) was applied on the PTFE layer,
Heat at 370°C for 3 minutes. Repeat this application and heating to reduce the amount of silica powder and PTFE deposited to 400.
A PTFE layer 4 containing silica powder of g/m 2 is formed.
The particle size of the silica powder is 20 μm or less, and in the dispersion, 8 parts by weight of the silica powder is mixed with 100 parts by weight of the PTFE powder.
次いで、シリカ粉末含有PTFE層上にFEPデイ
スパージヨン（ダイキン社製、商品名ND−１）
を塗布し、350℃で３分間加熱し、保護層５を形
成し、耐水性膜構造材を得た。 Next, FEP dispersion (manufactured by Daikin, product name ND-1) was applied on the PTFE layer containing silica powder.
was coated and heated at 350°C for 3 minutes to form a protective layer 5 to obtain a water-resistant membrane structure material.
この耐水性膜構造材を下記試験に供した。 This water-resistant membrane structural material was subjected to the following tests.
（吸水試験）
耐水性膜構造材を60℃の温水中に浸漬し、経日
毎の吸水率を測定した。(Water Absorption Test) The water-resistant membrane structural material was immersed in warm water at 60°C, and the water absorption rate was measured over time.
吸水率は経日毎に膜構造材を引き上げ、表面の
水を軽く拭きとつて重量を測定し、下記式により
算出する。得られた結果を第２図に示す。 The water absorption rate is calculated by pulling up the membrane structure material every day, gently wiping off the water on the surface, measuring the weight, and using the following formula. The results obtained are shown in FIG.
吸水率（％）＝吸水後重量−吸水前重量／吸水前重量
×100
（引張強度試験）
上記吸水試験と同様に耐水性膜構造材を60℃の
温水中に浸漬し、経日毎に引き上げ、表面の水を
軽く拭いて水分を除去し、その後、温度25℃、引
張り速度200mm／minの条件で引張強度を測定す
る。次に、下記式により引張強度保持率を算出す
る。得られた結果を第３図に示す。 Water absorption rate (%) = Weight after water absorption - Weight before water absorption / Weight before water absorption x 100 (Tensile strength test) Similar to the water absorption test above, the water-resistant membrane structure material was immersed in warm water at 60°C, pulled out every day, The water on the surface is gently wiped to remove water, and then the tensile strength is measured at a temperature of 25°C and a tensile speed of 200 mm/min. Next, the tensile strength retention rate is calculated using the following formula. The results obtained are shown in FIG.
引張強度保持率（％）＝浸漬後の強度／浸漬前の強度
×100
比較例
シリカ粉末に代え粒径25μm以下のガラスビー
ドを用いること、およびデイスパージヨン中にお
けるPTFEとガラスビードの配合割合を
PTFE100重量部に対し、ガラスビード21重量部
とすること以外は全て実施例と同様に作業して、
膜構造材を得た。 Tensile strength retention rate (%) = Strength after immersion / Strength before immersion × 100 Comparative example: Using glass beads with a particle size of 25 μm or less in place of silica powder, and changing the blending ratio of PTFE and glass beads in the dispersion.
All operations were carried out in the same manner as in the example except that 21 parts by weight of glass beads were used for 100 parts by weight of PTFE.
A membrane structural material was obtained.
（発明の効果）
本発明は上記した如く、ガラス繊維布上にシリ
コーン樹脂層およびPTFE層を設け、更に該
PTFE層上にシリカ粉末含有PTFE層を設けたの
で、上記実施例および比較例にも示されているよ
うに、耐水性が大巾に改良された膜構造材が提供
できる特徴がある。(Effects of the Invention) As described above, the present invention provides a silicone resin layer and a PTFE layer on a glass fiber cloth, and further provides a silicone resin layer and a PTFE layer on a glass fiber cloth.
Since the PTFE layer containing silica powder was provided on the PTFE layer, it is possible to provide a membrane structure material with greatly improved water resistance, as shown in the above Examples and Comparative Examples.
第１図は本発明に係る耐水性膜構造材の実例を
示す側面図、第２図および第３図は膜構造材の吸
水率および引張強度保持率の経日変化を示すグラ
フである。
１…ガラス繊維布、２…シリコーン樹脂層、３
…PTFE層、４…シリカ粉末含有PTFE層。
FIG. 1 is a side view showing an example of a water-resistant membrane structure material according to the present invention, and FIGS. 2 and 3 are graphs showing changes over time in water absorption and tensile strength retention of the membrane structure material. 1...Glass fiber cloth, 2...Silicone resin layer, 3
...PTFE layer, 4...PTFE layer containing silica powder.
Claims (1)
リテトラフルオロエチレン層およびシリカ粉末含
有ポリテトラフルオロエチレン層が順次形成され
て成る耐水性膜構造材。1. A water-resistant membrane structure material, in which a silicone resin layer, a polytetrafluoroethylene layer, and a silica powder-containing polytetrafluoroethylene layer are sequentially formed on the surface of a glass fiber cloth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5748087A JPS63222852A (en) | 1987-03-12 | 1987-03-12 | Waterproof film structural material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5748087A JPS63222852A (en) | 1987-03-12 | 1987-03-12 | Waterproof film structural material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63222852A JPS63222852A (en) | 1988-09-16 |
| JPH0544916B2 true JPH0544916B2 (en) | 1993-07-07 |
Family
ID=13056874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5748087A Granted JPS63222852A (en) | 1987-03-12 | 1987-03-12 | Waterproof film structural material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63222852A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9027143D0 (en) * | 1990-12-14 | 1991-02-06 | Scapa Group Plc | Industrial fabrics |
| US5358750A (en) * | 1990-12-14 | 1994-10-25 | Scapa Group Plc | Industrial fabrics |
| JP4677712B2 (en) | 2003-11-17 | 2011-04-27 | 旭硝子株式会社 | Film made of fluoropolymer |
| AU2005202806B2 (en) | 2004-06-29 | 2010-05-27 | Asahi Glass Company, Limited | Fluorocopolymer film and its application |
| US7732045B2 (en) | 2006-04-12 | 2010-06-08 | Asahi Glass Company, Limited | Film for membrane structure |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1544099A (en) * | 1975-08-11 | 1979-04-11 | Occidental Petroleum Corp | Flash pyrolysis of organic solid waste |
| JPS557148A (en) * | 1978-06-30 | 1980-01-18 | Tokyo Shibaura Electric Co | Operating system of elevator |
| JPS6134032A (en) * | 1984-07-25 | 1986-02-18 | Daikin Ind Ltd | Fluororesin coating composition |
| JPS61185441A (en) * | 1984-10-24 | 1986-08-19 | 日東電工株式会社 | Fluoroplastic coated film structural material |
-
1987
- 1987-03-12 JP JP5748087A patent/JPS63222852A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63222852A (en) | 1988-09-16 |
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