CN2459169Y

CN2459169Y - High-strength three-unit composite permeation-resistant film

Info

Publication number: CN2459169Y
Application number: CN 00241523
Authority: CN
Inventors: 董建伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-06-19
Filing date: 2000-06-19
Publication date: 2001-11-14
Anticipated expiration: 2010-06-19

Abstract

The utility model relates to a high-strength three-unit compound seepage resistant film which is composed of high strength filament woven geotextile 1, a heat film 2 made of polyethylene with high pressure and low-density, and needled short fibre non-woven cloth 3, wherein, a plastic extruding machine of a plastic compound machine group is utilized to heat the polyethylene with high pressure and low-density to a certain temperature to extrude the uniform heat film 2; then, one face of the heat film 2 is in involution with the high strength filament woven geotextile 1, the other face is in involution with the needled short fibre non-woven cloth 3; after hot compacting by a heat sealing machine, the high-strength three-unit compound seepage resistant film is produced. The utility model has the advantage of large tensile strength, and is suitable for seepage resistant engineering for dams and canals in water conservancy, and other construction seepage resistant engineering.

Description

The compound antiseepage film of a kind of high-strength ternary

The utility model relates to the water conservancy construction material type, the compound antiseepage film of particularly a kind of high-strength ternary.

As everyone knows, compound antiseepage film is a widely used impervious material in China's hydraulic engineering and architectural engineering in recent years, existing compound antiseepage film has nonwoven to add polyethylene film to add nonwoven, be called as two cloth, one film, also have nonwoven or woven cloth to add polyethylene film, be also referred to as a cloth one film, the common drawback of these materials, tensile strength is low, do two cloth, one film by nonwoven, or a cloth one film, though the coefficient of friction of nonwoven is bigger, tensile strength is low, and during with high-intensity woven cloth, because it is not coefficient of friction is lower, good again with the other materials coupling, so can not satisfying simultaneously, existing compound antiseepage film bears big load, big coefficient of friction is arranged, the requirement of higher anti-permeability strength is the problem that urgent need will solve.

The purpose of this utility model is exactly the shortcoming that exists at impervious material in above-mentioned hydraulic engineering and the architectural engineering, provides a kind of high-strength ternary compound antiseepage film.

The technical solution of the utility model:

According to the purpose of this utility model, provide a kind of high-strength ternary compound antiseepage film, because the nonwoven coefficient of friction is bigger, but tensile strength is low, and high-intensity woven cloth coefficient of friction is lower, but tensile strength is good, so the utility model adopts high strength filaments woven geotextile, the no wax in surface and acupuncture short fiber nonwoven hot-forming with the plastic extruder in the plastic compounding machine group hp-ldpe being added hot-extrudable uniform hotting mask.

Accompanying drawings structure of the present utility model and embodiment:

Fig. 1 is a three-dimensional appearance decomposing schematic representation of the present utility model.

Fig. 2 is an embodiment schematic diagram of the present utility model.

1 is that high strength filaments woven geotextile, 2 is that hp-ldpe hotting mask, 3 is that acupuncture short fiber nonwoven, 4 is for pressing beam.

Shown in accompanying drawing 1 and accompanying drawing 2, the utility model is made of high strength filaments woven geotextile 1, hp-ldpe hotting mask 2 and acupuncture short fiber nonwoven 3, wherein the no wax in high strength filaments woven geotextile surface; Mass area ratio 100 gram of acupuncture short fiber nonwoven 3, wherein polyester, polypropene staple each 50%; With the plastic extruder in the plastic compounding machine group hp-ldpe heating is reached uniform temperature, extrude uniform hotting mask again, the one side of this hotting mask 2 is involutory with high strength filaments woven geotextile 1, another side and acupuncture short fiber nonwoven 3 are involutory hot-forming with heat-sealing machine, promptly make the compound antiseepage film of high-strength ternary.

Embodiment of the present utility model:

When being used for dyke seepage control, the one side of the nonwoven of the compound antiseepage film of high-strength ternary pasted be placed on the sand face, can increase frictional force between compound antiseepage film and sand, woven geotextile simultaneously is used to put the revetment material, as stone-laying, concrete plate, mold-bagged concrete etc.; When being used for the anti-seepage of channels, the usable polymers fiber concrete is overlying on the surface of acupuncture short fiber nonwoven, utilizes the coupling connection effect of nonwoven, with concrete conglutination, constitutes antiseepage revetment face, again with pressing beam 4 to reinforce.

Advantage of the present utility model:

1, tensile strength is bigger, is the 4-of at present existing same mass area ratio composite impermeable membrane 8 times.

2, be with high-tensile, high antiseepage intensity, bigger peel strength, bigger friction system Number combines together, can adapt to preferably various bigger loads in the hydraulic engineering construction.

Claims

1, the compound antiseepage film of a kind of high-strength ternary, it is not have anti-cloth (3) by the hotting mask (2) of high strength filaments woven geotextile (1), hp-ldpe and acupuncture short fiber to be constituted, and it is characterized in that: acupuncture short fiber nonwoven (3) mass area ratio 100g/m ², the one side of hp-ldpe hotting mask (2) is involutory with high strength filaments woven geotextile (1), and another side and acupuncture short fiber nonwoven (3) are involutory.