Is a microporous membrane or an ultrafiltration membrane for supporting said layer, on its surface covered with a thickness of only 0.1 ~ 0.25μm dense, homogeneous membranes for the separation membrane barrier layer. Such that the amount of material through a great increase. The composite membrane material may comprise any combination of materials, such as metal oxide coated on a ceramic membrane or a microporous polysulfone film coated with an aromatic polyamide film having a flat membrane or wound membrane to be used for non-wovens enhanced to support the pressure resistance of the microporous membrane, and the hollow fiber membrane is not required. Preparation divided into four categories: (1) lamination method, first prepared are very thin dense membrane, and then laminated to the microporous support film; (2) dip coating method, the polymer solution was dip-coated on the microporous film and then drying is made to be the reactive monomer or prepolymer solution was dip coated in the microporous film, heat or radiation curable; (3) plasma vapor deposition, plasma glow microporous support surface of the membrane to produce a dense homogeneous film; (4) interfacial polymerization, a microporous support membrane on the surface, with an active monomer interfacial polymerization. Composite film is mainly used for reverse osmosis, gas separation, pervaporation and other separation processes. Films with two different membrane materials were prepared surfactant layer (dense separating layer) having a separation function and play a supportive role of the porous layer. Geotextile composite membrane is affixed to one side or both sides of the film to form a composite geomembrane. In the form of a cloth membrane, two cloth one film. Direct geomembrane width 4-6m, weight 200-1500g / square meter, high physical and mechanical properties of low-tensile, tear, bursting and other indicators of the geomembrane, the product has high strength, good elongation properties, deformation modulus, acid, anti-corrosion, anti-aging, anti-seepage performance characteristics. To meet the water, municipal, construction, transportation, subways, tunnels, construction of impervious, isolation, reinforcement, crack control reinforcement, civil engineering needs. Due to its selection of polymer materials and the production process adds anti-aging agent, it can be used in unconventional temperature environment. Commonly used in dams, drainage ditch seepage treatment, as well as pollution prevention and waste treatment field. Impermeable geomembrane base mainly in plastic film as raw material, in addition to geotextile impermeable material, impermeable material look good and good performance is mainly to see the bad plastic film. In China, applied to impervious plastic film, is an extension of the characteristics of this material is strong, corrosion-resistant, the proportion of small, low temperature, high deformation capacity to adapt, there is a strong freezing capacity. Civil engineering composite materials now being constantly updated, functional materials is also rising. Now out of a new type of composite geomembrane to synthetic material as the main material of warp geomembrane, warp geomembrane and general type of geomembrane is not the same. Warp geomembrane There are many features with low elongation, high tensile strength, performance characteristics, but also has a strong waterproof, so warp geomembrane is a strong protection, isolation materials, in the international community to get a very high level. In China, there are many manufacturers producing geomembrane, products, whether or above in quality above the geomembrane in the specifications are quite good, but also a wide variety of species. When there are two options selected date geomembrane, according to the actual situation of manufacturers, can also be produced according to individual requirements of manufacturers. Impervious body has a very unique structure consists of four layers are: base, geomembrane, stone revetment, a protective layer, each layer is designed to be laying the base surface design, geomembrane design, protective layer design, armor design, each layer has a great attention to design, and strive to achieve the most perfect works. Select the appropriate geomembrane, in the process of laying should be noted that the laying of the geomembrane engineering tightness should be moderate, not too tight nor too loose. During the construction of the stones must be avoided, it should at the same time each project, while laying the membrane, while covering the protective layer. Quality geomembrane | Edison new materials (certified) | Chenzhou geomembrane provided by New Materials Co., Edison. Quality geomembrane | Edison new materials (certified) | Chenzhou geomembrane is auspicious New Materials Co., Ltd. (www.fangshenmo.com) launched this new upgrade, the above picture is for reference only, please call this Tel pages or images on to obtain the latest information, contact: song manager.