Geomembrane additives which are composed ::? Geomembrane for polymers, from 96% to 97.5% polyvinyl resin, 2% to 3% black and 0.5% to 1% of the additives. Depending on the environmental conditions and mechanism of action, the degradation of type Geomembrane is divided into oxidative degradation, extraction degradation, UV and thermal degradation, oxidative degradation is at the bottom of the landfill impermeable membrane impermeable geomembrane main degradation type . Oxidation process is essentially a process of radical chain reactions can be divided into three stages, each stage of a process on behalf of an antioxidant (stabilizer) consumed during this period Geomembrane mechanical properties do not change, the major antioxidant and oxygen , alkyl peroxy radicals and free radicals and other substances react chemically or physically migration, extraction, washing and evaporation loss, etc., usually by oxidation induction time (OIT) test was measured, the experiment there are two types, i.e. OIT OIT test standard and high-pressure test. Phase II for the induction of oxidative degradation of the mechanical properties of this period remains unchanged customized Geomembrane HDPE geomembrane, and molecular composition will find significant changes in the production of HDPE geomembrane, general Fourier transform infrared spectrum analyzer (FTIR) analysis. Phase III is the oxidative degradation of the early stage of this physical effect occurs mainly in the molecular cross-linking the main wholesale HDPE geomembrane, the molecular weight increases, the degree of crystallinity increased, no significant changes in the nature of the project; late into chemistry to chain scission based, molecular weight reduction, decreased engineering properties (such as stress and strain at break, tensile modulus, etc.), until the final instability, stage three ends. Generally believed that when the engineering properties of Geomembrane (such as stress cracking, stress crack and crack strain) down to a specific value (50% of the engineering properties of the original value or to a specified value) when the following is considered its loss stable. Melt flow index MI constant load tests and notch tensile test NCTL is effective analysis of two experiments that stage, the former for molecular testing Geomembrane, the latter mainly to measure stress cracking characteristics. Geomembrane is a substantially impermeable material. Depending on the raw materials can be divided into two major categories of polymer and bitumen. To meet the needs of different strength and deformation, there are not reinforced and reinforced the distinction. Polymer film manufacturing plant, bitumen membranes are mostly in the field of manufacturing. Polymers are thermoplastics manufactured geomembrane (e.g. polyvinyl chloride), crystalline thermoplastic plastic (e.g. high density polyethylene), thermoplastic elastomers (e.g., chlorinated polyethylene) and rubber (e.g. neoprene) and the like. Methods of manufacturing plants mainly geomembrane extrusion, calendering or add paint. The molten polymer is extruded through a die made geomembrane, a thickness of 0.25 ~ 4mm. Calendered thermoplastic polymer sucked by hot rolling into a geomembrane, a thickness of 0.25 ~ 2mm. The polymer was added to the paint is evenly coated paper on-chip, to be peeled off after cooling geomembrane made. Geomembrane manufacturing site is sprayed or deposited layer of cold or hot viscous polymer is made on the ground. Bituminous geomembrane using polymer bitumen or synthetic rubber. Manufacturing geomembrane also needed a certain amount of additives incorporated, so that without changing the basic properties of the material of the case, to improve some of its properties and cost. Such as the incorporation of carbon black can improve the ability of HDPE geomembrane UV light anti-Japanese, anti-aging; doped lead salts, barium, calcium derivatives in order to improve the thermal material, anti-light stability; doped lubricants such as talc to improve the material operability; incorporation of fungicide to prevent bacterial destruction. For bituminous geomembrane, the main material is doped with some filler or fibers. Filler may be as fine mineral powder, it can increase the strength of the film and reduce its cost; the addition of fiber, but also to improve the strength of the film. HDPE geomembrane HDPE geomembrane manufacturers _ _ Edison Kunming new material provided by the New Materials Co., Edison. Edison New Materials Co., Ltd. (www.fangshenmo.com) located in Shandong Lingxian west industrial area. Scraps and development in the wave of market economy, the current Edison new material has a high profile at the site of construction materials, enjoys a good reputation. Edison made the whole network of new materials Commercial Union certification, marking our service and management level has reached a new height. Edison new material all the staff willing to work with insight and common development, and create a better future.