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一、前言日本聚氯乙烯复合钢板的历史已经超过四分一世纪,作为涂复钢板,其实际成绩和位置已经坚挺。目前生产量以建材用途为主体,稳步地增加;另一方面,技术上进步也令人注目,在非常先进的技术方面,各生产厂竞争剧烈。聚氯乙烯复合钢板是由聚氯乙烯被复层与钢板、中间胶层所构成,因而这些构成要素都有各自的技术进步。例如,聚氯乙烯被复层的耐侯性提高,钢板表面处理技术的开发可说是主要的技术进步。又如聚氯乙烯树脂的被复工序,大致分为溶胶涂装法和薄膜层
I. Preface The history of PVC composite sheet in Japan has been more than a quarter of a century. As a coated steel sheet, its actual achievements and position have been firm. At present, the production volume is mainly based on the use of building materials and steadily increases. On the other hand, technological progress is also noticeable. In the highly advanced technology, the competition among manufacturing plants is fierce. PVC composite steel is PVC by the cladding and steel, the middle layer of glue, so these components have their own technological advances. For example, the weather resistance of the PVC layer is increased, and the development of the steel sheet surface treatment technology is the major technological progress. Another example is the PVC resin is complex process, roughly divided into the sol coating method and the film layer