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DM型聚乙烯土工膜是一种质优、价廉的新型防水、防渗漏卷材。它是由北京塑料制品厂和能源部、水利部水利水电科学院结构材料所、龙翔应用技术开发研究所在消化、吸收美国产品HD衬垫后共同研制成功的。它具有质优、价廉、幅宽、寿命长、强度高、伸长率大、无毒无味、无污染等优点,并有较好的耐候性。用这种材料做屋面防水,如果有覆盖层保护,使用20年是绝对有把握的。如用这种材料做隧道的防渗、防潮材料,其寿命可达60年(按伸长率估算)。该材料适用于屋面、隧道、水库、
DM-type polyethylene geomembrane is a high quality, inexpensive new waterproof, anti-seepage membrane. It was jointly developed by the Beijing Plastic Products Factory and the Ministry of Energy, the Institute of Structural Materials of the Institute of Water Resources and Hydropower Science and Technology of the Ministry of Water Resources, and the Longxiang Institute of Applied Technology Development after digesting and absorbing American HD cushions. It has the advantages of high quality, low cost, wide width, long life, high strength, large elongation, non-toxic, tasteless, non-polluting, etc., and has good weatherability. With this kind of material for roof waterproofing, if there is a cover protection, the use of 20 years is absolutely sure. If this material is used as a tunnel anti-seepage and moisture-proof material, its life can reach 60 years (estimated by elongation). The material is suitable for roofs, tunnels, reservoirs,