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最近,上海市建委、经委、科委、农委联合颁布了《关于在本市推广化学建材和限制淘汰落后产品规定的通知》,推出“排水用芯层发泡硬聚氯乙烯(PVC-U)管材”。有读者为此来电要求了解推广这一项目的背景、这一项目的产品性能、经济效益及技术成熟度。现将我们了解的情况介绍如下: 一、概述 PSP管由三层材料同时共挤而成,其内、外表层为普通硬质PVC材料,中间为发泡芯层。比传统的PVC塑料管更具优势,是一种新型建筑材料,可广泛应用于工业及日常生活中。如可作低
Recently, the Shanghai Construction Commission, the Economic Commission, the Science and Technology Commission, and the Agriculture Commission jointly promulgated the “Notice on Promoting Chemical Building Materials and Limiting the Obsolescence of Lagging Products Regulations in this Municipality”, introducing the "Drainage Core Foaming Hard Polyvinyl Chloride (PVC-U). ) Pipe. Some readers called for this to understand the background of the promotion of the project, product performance, economic benefits and technology maturity of this project. Now we understand the situation as follows: I. Overview PSP tube consists of three layers of material co-extruded at the same time, its inner and outer surface of the ordinary hard PVC material, the middle foam core. Compared with traditional PVC plastic pipe, it is a new type of building material that can be widely used in industry and daily life. If it can be made low