石油圈中国石化新闻网讯 据世界石油美国新泽西州12月23日消息，为了满足土工膜制造商和安装商对线性低密度聚乙烯（LLDPE）日益增长的需求，EPT宣布了一种具有这些特定性能的线增强LLDPE织物。与高密度聚乙烯（HDPE）相比，LLDPE具有优越的柔韧性和更好的平整度，因此需求日益增长。EPT 公司特别配制了LLDPE织物，具有较高的耐化学性和抗紫外线性能，并为该材料提供了抗穿刺和抗撕裂的纤维增强丝束材料。它非常适用于固体和危险废物填埋场、C＆D垃圾填埋场、采矿和工业及市政给排水等领域。这种材料是黑色的，双面磨砂处理，宽度可达10英尺，有30、36和45毫米，便于高效制造。独特的，浮雕纹理处理改善摩擦力将在明年年初试试用所有厚度。 工程聚合物技术公司总裁Mike Satz表示：“我们的客户对LLDPE的兴趣越来越大。我们很高兴推出高质量的LLDPE复合膜，它结合了要求苛刻的土工膜应用所需的柔韧性、化学特性、穿刺和撕裂强度。我们相信这种LLDPE薄膜将增强成功的美国生产聚合物纤维和薄膜的产品组合，并满足制造商和安装商的要求。” HDPE和LLDPE都是聚烯烃，具有优异的耐化学性，这使其成为初级和次级密封的常用选择。然而，与HDPE不同，LLDPE 具有足够的柔韧性，可以在受控条件下在干燥的地板上提前进行制造、焊接和测试。该工艺包括焊接速度快、焊接一致性好、剥离附着力大、粘结焊缝厚度大、施工质量保证(CQA)费用低等优点。 【注】LLDPE是线性低密度聚乙烯 曹海斌 摘译自 世界石油 原文如下： Engineered Polymer Technologies has introduced new string-reinforced LLDPE To meet the growing demand for Linear Low Density Polyethylene (LLDPE) bygeomembrane fabricators and installers, EPT has announced a string-reinforced LLDPE fabric with the specific properties required for these types of applications. LLDPE has been in increasingdemand due to its superior flexibility and better layflat versus High Density Polyethylene (HDPE). EPT has specially formulated its LLDPE fabric for high resistance to chemicals and UV, and offers the material with a puncture- and tear-resistant string-reinforced scrim. It is ideal for use in solid and hazardous waste landfills, C & D landfills, mining and industrial and municipal water and wastewater treatment. The material, sold in jet black with a matte finish on both sides is available in widths up to 10 feet, in 30, 36 and 45 mil, for easy and efficient fabrication. A unique, embossed textured finish for improved traction will be available early next year in all thicknesses. “There has been increasing interest in LLDPE from our customers. We are excited to introduce a high quality LLDPE composite membrane that combines the flexibility, chemical properties, puncture and tear strength needed for demanding geomembrane applications,” stated Mike Satz, president of Engineered Polymer Technologies (EPT). “We are confident this LLDPE membrane will strengthen our portfolio of successful US made polymer fabrics and films, and meet the requirements of fabricators and installers,” added Satz. Both HDPE and LLDPE are polyolefins, and have excellent chemical resistance properties, making them common choices for both primary and secondary containment. However, unlike HDPE, LLDPE is flexible enough to be fabricated ahead of time, welded and tested on a dry floor under controlled conditions. The advantages of this process include accelerated and more consistent welding, greater peel adhesion and bonded seam sheer values, and reduced construction quality assurance (CQA) expenses.
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