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綠化護坡專用防滲土工布

發布時間:[2021-2-8 9:44:25]    瀏覽量:1507次
　　綠化護坡專用防滲土工布，防滲土工布（復合土工膜）是指以塑料薄膜作為防滲基材，與無紡布復合而成的土工防滲材料，它的防滲性能主要取決于塑料薄膜的防滲性能。目前，國內外防滲應用的塑料薄膜，主要有聚氯乙烯（PVC）和聚乙烯（PE），它們是一種高分子化學柔性材料，比重較小，延伸性較強，適應變形能力高，耐腐蝕，耐低溫，抗凍性能好。其主要機理是以塑料薄膜的不透水性隔斷土壩漏水通道，以其較大的抗拉強度和延伸率承受水壓和適應壩體變形．
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