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首页> 外文会议>2001 International gas research conference >A NEW TECHNOLOGY FOR MAINTAINING THE STRENGTH OF ELECTROFUSION JOINTS BY USING POLYSILANE
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A NEW TECHNOLOGY FOR MAINTAINING THE STRENGTH OF ELECTROFUSION JOINTS BY USING POLYSILANE

机译：利用聚硅烷保持电熔接头强度的新技术

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The fusion strength of EF joints using the PE pipe connection greatly depends on the amount of sand which adheres to the interface by wind and so on, because there is no flow of melted resin at the fusion interface on EF joints. Therefore, it is necessary to develop a method to prevent the fusion strength from reducing even in the case of sand adhesion. In this study, the fusion interface coated with polysilane, a kind of silicon polymer, effectively prevented the reduction of the fusion strength even if contaminated by sand. It was found that it brought the improvement of the fusion strength since when there was polysilane on the fusion interface, polysilane deeply permeated the polyethylene layer and lowered the viscosity of polyethylene.
机译：使用PE管连接的EF接头的熔合强度在很大程度上取决于通过风等粘附在界面上的沙子量，因为在EF接头的熔合界面处没有熔化的树脂流动。因此，有必要开发一种即使在沙子附着的情况下也能够防止熔融强度降低的方法。在这项研究中，涂覆有聚硅烷（一种硅聚合物）的熔合界面有效地防止了熔合强度的降低，即使被沙子污染了。发现当熔融界面上存在聚硅烷时，聚硅烷深深地渗透到聚乙烯层中并降低了聚乙烯的粘度，从而带来了熔融强度的提高。

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