JPH0732041Y2 - Flexible sheet material for deicing - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a flexible sheet material for deicing snow. More specifically, the present invention relates to a flexible sheet material for deicing snow that prevents or facilitates the removal of snow or icing on buildings, trains, automobiles, aircraft, ships, floating buoys, etc. .

Here, "buildings" mean tent houses, sheet houses,
Other open-air structures including houses, schools, factories, offices, stadiums, etc., including simple houses, and all open-air structures including power lines, overhead cableways, chimneys, columns, towers, bridges, monuments, etc. It is an object.

[Conventional technology]

It is known that a large amount of snow in winter causes damage to buildings and sometimes collapse. It is also well known that various obstacles are caused in trains, automobiles, aircrafts, ships, floating buoys, etc., which are used outdoors due to snow and icing. For example, in a ship, snow and icing will reduce its restoration performance and cause capsizing.In addition, transmission lines, overhead cableways, steel towers that support them, buoy lights in harbors, and chimneys will cause snowfall and landing. It is also known that it can be damaged by ice, and that its prevention, maintenance and repair are extremely difficult.

Conventionally, the prevention or prevention of various obstacles caused by snow and icing has mainly depended on removal by human or mechanical force. However, considering the difficulty, high cost and danger of such removal work, it is most necessary to develop safe, inexpensive and effective preventive and removal means.

As a means for preventing and removing such snow accretion, a paint containing a chemical that lowers the freezing point of water is applied to the surface of an object in contact with snow or ice to prevent the formation of ice on the surface of the object, Attempts to prevent ice from sticking strongly to the surface of the object and facilitate its removal are known (for example, JP-A-58-65779 and JP-A-58-11887).
No. 9).

However, in such an anti-icing paint, the freezing point depressant of water is gradually consumed, so that its effective period is
It is known that it is only one season, and that the paint rapidly loses its effect when exposed to the sun and the atmosphere during non-snowfall periods. Moreover, in a structure having a complicated structure such as a ladder, a footrest, and a tower, even if the above-mentioned anti-icing paint is applied, water will enter the above-mentioned complicated structure and form ice, so that the removal Difficulties and high costs are not so different from those without paint.

Further, as another preventive removal means, it is known to incorporate a heater into a structure to prevent icing and snow accumulation, but this means has a problem that equipment cost and operation and maintenance cost are extremely high. Therefore, there is an economic limit to its practical use and diffusion.

As another preventive removing means, it is known to form an open-air outer surface such as a roof with a material having excellent snow sliding property, and the snow sliding property naturally causes the snow to slide down. Known examples of such snow-slipping materials include fluororesin-coated zinc iron plates and titanium plates. However, these plate materials have a thickness of at least 0.1 mm, usually 0.1 to 0.5 mm, are extremely inexpensive, and are effective on a flat surface such as a roof, but are not suitable for ladders and foot fittings. Or, when used for a complex structure having a shape such as a yagura, there is a problem that the above-mentioned specific material does not have a particular effect.

[Problems to be solved by the device]

The present invention has the above-mentioned problems of the conventional means for preventing and removing snow and icing, that is, the lack of permanent effect.
It eliminates the high equipment cost, the high maintenance cost, and the effect that the effect depends on the shape and structure of the target object. It is relatively inexpensive, the effect is highly durable, and the object to be used is not particularly limited. There is no attempt to provide a flexible sheet material for deicing.

[Means and actions for solving the problem]

A flexible sheet material for deicing of snow according to the present invention comprises a sheet-like substrate containing at least one organic polymer material layer, a sheet-like substrate bound to one surface of the sheet-like substrate, and comprising at least a metal titanium thin film. A metal coating layer having an outer surface layer, wherein the metal titanium thin film surface layer is bonded to the sheet-like substrate via an anchor layer made of at least one selected from chromium, nickel, iron and copper. It is characterized by being worn.

As shown in FIG. 1, the flexible sheet material of the present invention comprises a sheet-like substrate 2 composed of a single sheet-like organic polymer material layer, and a metal coating layer 1 laminated and bound thereon.
The metal coating layer 1 is composed of a metal titanium thin film layer 1a and an anchor layer 1b for firmly adhering the metal titanium thin film layer 1a to the sheet-shaped substrate 2.

Further, as shown in FIG. 2, the sheet-like substrate 2 of the flexible sheet material of the present invention comprises at least one sheet-like organic polymer material layer 2'and at least one layer laminated therewith. It may be composed of the fiber cloth layer 3. In FIG. 2, the sheet-shaped substrate 2 is composed of two layers of the sheet-shaped organic polymer material layer 2 ′ and one layer of the fiber cloth 3 which is inserted and bonded in the middle thereof. On the substrate 2, a metal titanium thin film layer 1a and an anchor layer
A metal coating layer 1 composed of 1b is laminated and bound. In the flexible sheet material of the present invention, as shown in FIG. 3, the sheet-shaped substrate 2 may include at least one organic polymer material foam layer 4. In FIG. 3, the sheet-like substrate 2 has a foam layer (porous layer) 4 made of an organic polymer material, preferably a flexible organic polymer material, on the back surface thereof, and on the foam layer 4, At least 1
Layer (2 layers in FIG. 3) of sheet-like non-foamed (non-porous) organic polymer material layer 2 ', and optionally at least 1
The layered (one layer in FIG. 3) fiber fabric layer 3 is laminated and bound to form the sheet-like substrate 2. In FIG. 3, the fiber cloth layer 3 is inserted and bound in the middle of the two sheet-shaped organic polymer material layers 2 '. Then, on the sheet-shaped substrate 2, the metal coating layer 1 including the metal titanium thin film layer 1a and the anchor layer 1b is laminated and bound.

The flexible sheet material of the present invention may have an adhesive layer 5 on the back surface portion of the sheet-like substrate 2 as illustrated in FIG. That is, in FIG. 4, at least one sheet-like organic polymer material layer 2 ′ and, if necessary, at least one fiber cloth layer 3 are laminated and bound on the pressure-sensitive adhesive layer 5, and Thus, the sheet-shaped substrate 2 is formed. The organic material layer 2'and the fiber cloth layer are laminated and bound in an arbitrary order. On this sheet-shaped substrate 2, the metal coating layer 1 including the metal titanium thin film layer 1a and the anchor layer 1b is formed.

As shown in FIG. 5, the metal coating layer 1 used in the present invention has an exposed outer surface formed of a metal titanium thin film layer 1a, and the metal titanium thin film surface layer 1a is made of a different metal (chromium, chromium, The anchor layer 1b made of at least one selected from nickel, iron, and copper is firmly bound to the sheet-like substrate 2. The anchor layer 1b may be formed and bonded on the back surface side (the surface side to be adhered to the sheet-shaped substrate) of the preformed metal titanium thin film by plating, adhesion, sputtering, vacuum vapor deposition, or another appropriate method, or May be formed and bound by, for example, subjecting the adhesive surface of the sheet-shaped substrate to surface activation treatment such as corona discharge treatment, and then sputtering or vacuum deposition.

This anchor layer firmly attaches the metal titanium thin film layer to the sheet-like substrate, and can significantly improve the durability of the snow and ice gliding effect.

The organic polymer material layer contained in the sheet-like substrate of the flexible sheet material of the present invention is formed of a material containing at least one selected from organic synthetic resin, synthetic rubber and natural rubber.

The synthetic resin used in the present invention includes polyvinyl chloride resin, polyurethane resin, ethylene-vinyl acetate copolymer resin, polyolefin resin (for example, crystalline polypropylene resin and polyethylene resin), polyacrylonitrile resin, polyester resin, polyamide resin. , A fluorine-containing polymer resin, and a silicone resin. Examples of preferable synthetic resin include polyvinyl chloride resin, polyurethane resin, and polyolefin resin.

The synthetic rubber that can be used in the present invention can be selected from styrene-butadiene rubber, chlorosulfonated polyethylene rubber, polyurethane rubber, butyl rubber, isoprene rubber, silicone rubber and fluorine-containing polymer rubber. Polyurethane rubber, chlorosulfonated polyethylene rubber , Silicone rubber, and fluorine-containing polymer rubber are particularly preferable.

In the present invention, the organic polymer material layer contained in the sheet-shaped substrate may be a single layer (film layer) as shown in FIG. 1, or as shown in FIGS. There may be two or more layers, or at least one layer may be a foam (porous layer). The organic polymeric material layer generally preferably has a weight of 50 to 1,000 g / m ² and preferably a thickness of 0.05 to 1.0 mm, unless it is a foam.

The foam layer of the organic polymer material can be arranged at any position on the sheet-like substrate to give compressibility and cushioning property to the entire flexible sheet material. For example, as shown in FIG. The back surface of the material may be formed. In this way, it is possible to prevent damage to the flexible sheet material and damage to the structure thereunder due to impact or impact during deicing of snow.

The foam is made from the organic polymeric material and a foaming agent, or other porosity forming method. The organic polymer material forming the foam is preferably highly flexible, and generally, synthetic rubber such as polyurethane rubber,
Alternatively, it is preferably selected from polyvinyl chloride resin, polyethylene resin, polyurethane resin and the like.

The organic polymer material foam layer in the flexible sheet material of the present invention may form a pre-formed sheet foam and adhere it to other layers, or a mechanical foam sol of organic polymer material. May be applied on another layer, and this may be foamed / cured by heating or another method. Alternatively, a film of an organic polymer material containing a foaming agent may be laminated on another layer, and this may be foamed by heating or another method.

In the present invention, one or more fiber cloth layers may be included in the sheet-shaped substrate. This fiber cloth layer is laminated and bound to one or more organic polymer material layers to enhance the mechanical strength of the flexible sheet material of the present invention, and to improve the flexibility of the flexible sheet material during the use of the flexible sheet material. It is possible to remarkably improve the tensile strength and the resistance to the impact and impact of the flexible sheet material during the fluttering by the wind, the snow removal and the deicing, and the expansion and contraction due to the temperature change.

The fiber cloth used in the present invention includes organic natural fibers (eg, hemp, cotton, etc.), organic semi-regenerated fibers (diacetate fiber, triacetate fiber, etc.), organic regenerated fibers (viscose rayon fiber, cupra rayon fiber, etc.), Organic synthetic fibers (polyester fibers, polyolefin fibers, aliphatic polyamide fibers, and aromatic polyamide fibers),
And at least one selected from inorganic fibers (glass fiber, carbon fiber, metal fiber, etc.), and the form is any of woven fabric, knitted fabric, non-woven fabric, and composites thereof. May be

There is no particular limitation on the thickness and weight of the fibrous fabric layer, but it is generally preferred that it has a thickness of 0.01 mm to 2.0 mm and a weight of 10 to 1,000 g / m ² .

There is no particular limitation on the method for laminating and binding the organic polymer material layer and the fiber fabric layer, but generally, a melt of the organic polymer material, or a solution or emulsion is formed on one side or both sides of the fiber fabric layer. Method of coating or dipping and solidifying it, or
A film of an organic polymer material is adhered to the fiber cloth via an adhesive, or a method of fusing the film can be used.

In the sheet-like substrate of the flexible sheet material of the present invention, on the organic polymer material layer forming at least a part of the back surface (the surface where the metal coating layer is not bound), for example, as shown in FIG. A pressure-sensitive adhesive layer may be provided as described above. This pressure-sensitive adhesive layer can be formed from at least one pressure-sensitive adhesive polymer selected from, for example, a polyacrylic polymer or a silicone polymer, and the weight thereof is, for example, 10 to 100 g / m ² . It may be. In this way, the flexible sheet material having the adhesive layer on the back surface,
It is useful for covering a covering area that is difficult to fix with a string or a small area.

The metal titanium thin film used for the metal coating layer of the flexible sheet material of the present invention preferably has a thickness of 10 to 200 nm.

An anchor layer composed of at least one of Cr, Ni, Fe, and Cu as described above is laminated and adhered between the sheet-shaped substrate and the metal titanium thin film layer.
It is preferred to have a thickness of ~ 20 nm. This anchor layer can firmly bond the metal titanium thin film surface layer and the sheet-like substrate.

In adhering the metal coating layer, the adhesion surface of the sheet-like substrate may be subjected to adhesion promoting treatment, for example, corona discharge treatment, low temperature plasma treatment or flame treatment.

For the adhesion between the metal coating layer and the sheet-like substrate, an anchor layer is previously formed on the adhesion surface of the metal titanium thin film as described above, and this is adhered to the sheet-like substrate with an adhesive. Good, but preferably on one surface of the sheet substrate,
(Adhesion-enhancing treatment is applied if necessary), an anchor layer consisting of one or more of Cr, Ni, Fe, Cu is formed by vacuum vapor deposition or sputtering, and a titanium metal thin film layer is formed and bound on it. To do.

INDUSTRIAL APPLICABILITY The flexible sheet material of the present invention is flexible and can be adapted to the article to be used and the situation and shape of the place of use, and has a desired shape / shape.
It can be easily cut to size.

〔Example〕

 The present invention will be further described with reference to the following examples.

Examples and Comparative Examples In this example, an organic polymer material film for a sheet-shaped substrate was prepared by using the following composition: polyvinyl chloride 100 parts by weight DOP (plasticizer) 20 〃 epoxy plasticizer 20 〃 epoxidized soybean oil 3 〃 2 〃 of Ba-Zn stabilizer was manufactured by a heating roll method. Its thickness was 0.1 mm.

Separately, using a polyester multifilament yarn of 1000 denier / 192 filaments as warp and weft, 11
A plain fabric having a warp density and a weft density of /25.4 mm was prepared.

The film was heat-bonded on both sides of the woven fabric to prepare a sheet-like substrate.

Corona discharge treatment was applied to one side of this sheet-shaped substrate, the distance between both electrodes was 10 mm, the voltage was 160 V, the current was 18 amps, and the maximum output was 8
It was applied under the conditions of KW.

A 10 nm-thick Cr layer was formed as an anchor layer by a sputtering method on the corona-discharge-treated surface of the sheet-shaped substrate, and a thickness of 50 nm was further formed thereon by a sputtering method.
A Ti layer of nm was formed to obtain a flexible sheet material.

The anti-icing property of this flexible sheet material was evaluated by the following method.

Anti-icing test method A steel plate with a thickness of 9 mm and an area of (100 x 100) mm ² is used, and the test piece (100 x 100) mm ² of the above flexible sheet material is attached to it with an adhesive so that there is no unevenness. Glued to.
Fresh water was sprayed onto this test piece in an atmosphere of −20 ° C. to deposit ice with a thickness of 10 mm. A shear load was applied to the ice accretion to measure the shear stress (adhesive force) required to remove the ice. The above operation was repeated 3 times.

For comparison, 100 μm (solid) of anti-icing paint (trademark: Deflo S, manufactured by Kansai Paint Co., Ltd.) on the same steel plate as above
The above-mentioned test was applied to the one coated at a thickness of.

The results are shown in Table 1.

Table 1 clearly shows that the flexible sheet material of the present invention has a sufficiently small adhesion to ice for practical use and has a high durability.

Also, on the back side of the flexible sheet material, thickness 1.
When a 0 mm polyethylene resin foam layer was applied, good cushioning properties were exhibited, and the ice adhesion strength was almost the same as that described in Table 1 (Example).

Furthermore, on the back surface side of the flexible sheet material, a thickness of 0.
When a silicone resin pressure-sensitive adhesive layer of 2 mm was provided and adhered to a steel plate, it showed a sufficient fixability for practical use, and its ice adhesion strength was almost the same as that described in Table 1 (Example). It was

Further, for comparison, a flexible sheet material was prepared in the same manner as above, but without forming an anchor layer, and this was repeatedly subjected to the anti-icing test.
As a result, in the eighth anti-icing test, partial peeling of the metal titanium thin film surface layer was observed. But,
No peeling was observed in the flexible sheet material of the present invention.

[Effect of device]

1. The flexible sheet material of the present invention has a metal titanium thin film layer having excellent snow sliding / icing properties as the outermost layer, and therefore, when used on a flat surface with a slope such as a roof or an eaves, it has a heavy snow load. When it reaches the peak, the weight causes the snow to fall naturally. Moreover, the inclination angle is similar to the case of using the Ti metal plate, other roofing materials (roof, tin, fluorine resin coating,
Even if it is smaller than a zinc iron plate, etc., it shows sufficient snow removal effect.

2. The flexible sheet material of the present invention is cheaper than the Ti metal plate.

3. Flexible sheet of the present invention Since the sheet material is flexible and easy to cut, it can be applied in any shape and in any place.

4. The flexible sheet material of the present invention has a slight impact due to the flexibility / cushioning property of the flexible material and the low adhesion to the ice even if there is icing in a state of completely covering it. The ice can be easily removed by giving.

5. The flexible sheet material of the present invention is easy to put on and take off,
By removing it during the non-snowfall period, performance deterioration can be prevented.

6. The flexible sheet material of the present invention has excellent durability because the metal titanium thin film layer is firmly bound to the sheet-shaped substrate through the anchor layer.

[Brief description of drawings]

1 to 4 are cross-sectional explanatory views showing the configuration of one embodiment of a flexible sheet material for snow removal and deicing according to the present invention. FIG. 5 is a cross-sectional explanatory view showing the structure of the metal coating layer of the flexible sheet material for deicing snow of the present invention. DESCRIPTION OF SYMBOLS 1 ... Metal coating figure, 1a ... Metal titanium thin film surface layer, 1b ... Anchor layer, 2 ... Sheet-like base material, 2 '... Organic polymer material layer,
3 ... Fiber cloth layer, 4 ... Foam layer, 5 ... Adhesive layer.

Front page continuation (72) Inventor, Takemon Suzuki, 703 Matsue-cho, Soka-shi, Saitama Prefecture, Hiraoka Orizome Co., Ltd. (56) Reference JP 62-299337 (JP, A) JP 63-82740 (JP, A)

Claims (10)

[Scope of utility model registration request] 1. A metal-coated layer having a sheet-like substrate containing at least one organic polymer material layer, and an outermost surface layer bound to one surface of the sheet-like substrate and comprising at least a metal titanium thin film. And the metal titanium thin film surface layer is bound to the sheet-shaped substrate through an anchor layer made of at least one selected from chromium, nickel, iron and copper. Flexible sheet material for deicing. 2. The flexible sheet material for deicing snow according to claim 1, wherein the sheet-shaped substrate includes at least one organic polymer film layer. 3. The flexible sheet material for deicing snow according to claim 1, wherein the sheet-shaped substrate includes at least one fiber cloth layer. 4. The flexible sheet material for deicing snow according to claim 1, wherein the sheet-shaped substrate includes at least one organic polymer foam layer. 5. The snow-deicing flexible sheet material according to claim 1, wherein the other surface of the sheet-like substrate is formed of an organic polymer pressure-sensitive adhesive layer. 6. The flexible sheet material for deicing snow according to claim 1, wherein the one surface to be bound to the metal coating layer of the sheet-shaped substrate is activated by a corona discharge treatment or a low temperature plasma treatment. 7. The flexible sheet material for deicing snow according to claim 1, wherein the organic polymer film is made of at least one selected from synthetic resins, synthetic rubbers and natural rubbers. 8. The snow removal according to claim 1, wherein the fiber cloth layer is composed of at least one selected from organic natural fiber, organic semi-regenerated fiber, organic regenerated fiber, organic synthetic fiber, and inorganic fiber. Flexible sheet material for deicing. 9. The flexible sheet material for deicing snow according to claim 1, wherein the titanium metal thin film layer has a thickness of 10 to 200 nm. 10. The flexible sheet material for deicing snow according to claim 1, wherein the anchor layer has a thickness of 1 to 20 nm.