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一、土工织物老化的原因(一)高分子聚合物本身的结构状态(包括化学结构与物理结构)和高分子材料体系内部的性质、比例等,在极大程度上决定着材料耐老化性能的优劣。例如:由碳、氟两种原子构成的聚四氟乙烯耐老化性能大大优于碳、氢两种原子构成的聚乙烯和聚丙烯,而聚乙烯和聚丙烯虽然同属碳、氢的高聚物,但由于它们之间结构状态不同,因而聚乙烯耐老化性能优于聚丙烯。
First, the reasons for the aging of geotextiles (A) the structural state of the polymer itself (including chemical structures and physical structure) and the nature of the polymer material system, the ratio, etc., to a large extent determine the material’s aging resistance Good and bad. For example, the aging resistance of polytetrafluoroethylene composed of two atoms, carbon and fluorine, is much better than that of carbon and hydrogen. Polyethylene and polypropylene are both carbon and hydrogen polymers. However, because of the different structural state between them, polyethylene has better aging resistance than polypropylene.