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英国维多托利克(Victaulic)公司工业聚合物分公司,以生产传输和工艺管道用密封件闻名,现已将其技术应用于生产隧道砌块填密片。在选择密封材料时两种力学性质特别重要,一是压缩残余变形,一是应力松驰。维多托利克公司利用橡胶与塑料研究协会实测技术可预测一百年以上的材料性能。天然橡胶虽然是最理想的密封材料,但也存在微生物损坏的一些问题。该公司认为三元乙丙橡胶和丁苯橡胶都是良好的代用材料,
Victaulic’s Industrial Polymers Division in the United Kingdom, known for producing seals for transmission and process piping, has now applied its technology to the production of tunnel block fillers. The two mechanical properties are particularly important when selecting the sealing material. One is compression residual deformation and the other is stress relaxation. Vitortolic uses the actual testing technology of the Rubber and Plastics Research Association to predict material properties for more than a hundred years. Although natural rubber is the best sealing material, there are some problems with microbial damage. The company believes that EPDM rubber and styrene-butadiene rubber are good substitute materials.