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一、前言建筑防水材料是建材工业的重要门类,它与建筑业的发展密切相关。PVC作为防水材料日益普及,PVC屋面防水片材已问世数十年,目前它的产量正持续增长。由于它要经受严寒酷暑、风吹雨淋、尘埃和微生物的侵蚀,所以它的抗老化性能常为人们所关注。联邦德国科研人员对此进行了长期的研究,他们对某工业建筑物屋面于1978年辅设的五种含不同增塑类型的PVC防水片材作了调查,经用新材料同那些使用达7年的旧材料对照比较,增加了对PVC屋面防水
I. Preface Building waterproof material is an important category of the building materials industry, and it is closely related to the development of the construction industry. The use of PVC as a waterproof material has become increasingly popular, and PVC roofing waterproof sheets have been available for decades. At present, its output is continuously increasing. Since it is exposed to extreme cold, heat, wind, rain, dust, and micro-organisms, its anti-aging properties are often of concern. Researchers from the Federal Republic of Germany conducted a long-term research on this. They investigated five types of PVC waterproof sheets with different plasticizing types that were added to the roof of an industrial building in 1978, and used the new materials together with those used up to 7 Year of Old Material Control Comparison, Added PVC Roofing Waterproofing