阅读说明：本技术 一种复合土工膜的制备方法 (Preparation method of composite geomembrane ) 是由 鲍旭锋 于 2020-06-23 设计创作，主要内容包括：一种复合土工膜的制备方法,它包括铜箔层、防渗层、铝箔层、柔韧层和导电层,铜箔层、防渗层、铝箔层、柔韧层和导电层依次叠加结合在一起；所述铝箔层上表面与防渗层下表面贴合连接；所述柔韧层上表面与所述铝箔层下表面贴合连接；所述导电层镶嵌在柔韧层下表面内,导电层由导电片相互连接后排布而成。本发明具有更强的抗化学腐蚀性能、稳定性、抗穿刺性能,更能够有效阻止化学有害物的渗透。(The preparation method of the composite geomembrane comprises a copper foil layer, an impermeable layer, an aluminum foil layer, a flexible layer and a conductive layer, wherein the copper foil layer, the impermeable layer, the aluminum foil layer, the flexible layer and the conductive layer are sequentially superposed and combined together; the upper surface of the aluminum foil layer is attached to the lower surface of the impermeable layer; the upper surface of the flexible layer is attached to the lower surface of the aluminum foil layer; the conducting layer is embedded in the lower surface of the flexible layer and is formed by connecting and arranging conducting sheets. The invention has stronger chemical corrosion resistance, stability and puncture resistance, and can effectively prevent the penetration of chemical harmful substances.)

1. The preparation method of the composite geomembrane is characterized by comprising a copper foil layer, an impermeable layer, an aluminum foil layer, a flexible layer and a conductive layer, wherein the copper foil layer, the impermeable layer, the aluminum foil layer, the flexible layer and the conductive layer are sequentially superposed and combined together; the upper surface of the aluminum foil layer is attached to the lower surface of the impermeable layer; the upper surface of the flexible layer is attached to the lower surface of the aluminum foil layer; the conducting layer is embedded in the lower surface of the flexible layer and is formed by connecting and arranging conducting sheets.

2. The preparation method of the composite geomembrane according to claim 1, wherein the impermeable film layer comprises a first impermeable layer, a second impermeable layer and a third impermeable layer, the first impermeable layer, the second impermeable layer and the third impermeable layer are sequentially combined together according to the sequence, and the impermeable film layer is made of high-density polyethylene and linear high-density polyethylene; the anti-seepage film layer also comprises the following auxiliary materials: antioxidants, age resistors, carbon black, and flame retardants.

3. The method for preparing a composite geomembrane according to claim 1, wherein the copper foil layer is provided with a plurality of circular grooves which are distributed adjacently.

4. The method for preparing a composite geomembrane according to claim 1, wherein the thickness of the conductive layer is half of the thickness of the flexible layer.

5. The method for preparing a composite geomembrane according to claim 1, wherein the width of each of the barrier layer and the aluminum foil layer is smaller than the width of the copper foil layer, the flexible layer and the conductive layer.

Technical Field

The invention relates to the field of building waterproofing, in particular to a preparation method of a composite geomembrane.

Background

Geomembranes are commonly used materials in waterproof and anti-seepage occasions, and are widely used for infrastructure construction in multiple fields, such as environmental sanitation, water conservancy, municipal engineering, gardens, petrifaction, agriculture, mining industry, aquaculture and the like. The existing geomembrane is mainly made by adopting a single-layer or double-layer impermeable membrane technology of high-density polyethylene, the brittleness of the geomembrane is larger, and when the geomembrane is used or in the construction process, crack induction stress easily causes the impermeable layer of the membrane to crack or even causes the geomembrane to be damaged, so that the service life of the geomembrane is greatly shortened.

In addition, the existing geomembrane material is an insulating material, is thin in thickness and relatively flexible, is easy to damage and break in the production and application process of the geomembrane, generates much static electricity, is easy to cause the production and construction personnel to have touch inductance to influence the work although the electric quantity is not high, and has no release channel relatively, so that the static electricity easily influences partial mechanical equipment connected with the geomembrane; meanwhile, the area of a single composite geomembrane cannot be made to be large, at present, the common treatment mode is that in the construction process, constructors are used for carrying out on-site polishing treatment on two sides of the composite geomembrane, and then the composite geomembrane is connected and fixed by using bonding materials, only in the process, about 30% of time of the constructors can be consumed in the on-site construction process, and the constructors are difficult to unify in polishing precision, so that the membrane body is easy to be damaged.

Disclosure of Invention

The invention mainly solves the technical problem of providing the composite geomembrane which has the advantages of good waterproof and anti-seepage performance, static resistance, various functions, convenient use and the like and improves the construction efficiency of constructors.

In order to solve the problems of the prior art, the embodiment of the invention provides a preparation method of a composite geomembrane, which comprises a copper foil layer, an impermeable layer, an aluminum foil layer, a flexible layer and a conductive layer, wherein the copper foil layer, the impermeable layer, the aluminum foil layer, the flexible layer and the conductive layer are sequentially superposed and combined together; the upper surface of the aluminum foil layer is attached to the lower surface of the impermeable layer; the upper surface of the flexible layer is attached to the lower surface of the aluminum foil layer; the conducting layer is embedded in the lower surface of the flexible layer and is formed by connecting and arranging conducting sheets.

Preferably, the anti-seepage film layer comprises a first anti-seepage layer, a second anti-seepage layer and a third anti-seepage layer, the first anti-seepage layer, the second anti-seepage layer and the third anti-seepage layer are sequentially combined together according to the sequence, and the anti-seepage film layer is made of high-density polyethylene and linear high-density polyethylene; the anti-seepage film layer also comprises the following auxiliary materials: antioxidants, age resistors, carbon black, and flame retardants.

Preferably, a plurality of circular grooves which are distributed adjacently are arranged on the copper foil layer.

Preferably, the thickness of the conductive layer is half of the thickness of the flexible layer.

Preferably, the width of each of the impermeable layer and the aluminum foil layer is smaller than the width of each of the copper foil layer, the flexible layer and the conductive layer.

The technical scheme provided by the embodiment of the invention has the following beneficial effects:

(1) the invention has stronger chemical corrosion resistance, stability and puncture resistance, and can effectively prevent the penetration of chemical harmful substances.

(2) The waterproof and seepage-proof performance is enhanced; set up the conducting layer, can pass through the quick release of conducting layer with the static that geomembrane body surface produced, avoid causing the puzzlement to equipment and operation personnel.

(3) The flame retardant is specially added into the impermeable layer, can form a glass-shaped or stable foam covering layer at high temperature, isolates oxygen, has the functions of heat insulation, oxygen isolation and prevention of combustible gas from escaping outwards, achieves the purpose of preventing combustion, greatly reduces the potential safety hazard of the geomembrane in fire hazard and enlarges the application range of the geomembrane.

Detailed Description