| 摘要 |
<p>An anti-corrosive material used to protect buried conduits from corrosion, preferably characterized by a multi-layered co-extruded, calendered, or laminated polyolefin. The material has an outer layer characterized by a low density polyethylene to provide conventional protection from soil, water, air, or other potentially damaging elements; a center layer characterized by a high density polyethylene to provide a high density barrier between the outer layer and an inner layer; and an inner layer characterized by a low density polyethylene impregnated with a biocide, a volatile corrosion inhibitor (VCI), or both. Alternate embodiments may comprise from only one layer of polyolefin impregnated with a biocide, a VCI, or both, to a material having a plurality of layers with any number of layers having the anti-corrosive agents impregnated therein.</p> |
