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生料帶防水性的原理是什么

2022-05-18 14:37

生料帶屬于防水材料,主要用于農業給水、排水工程、水力工程等的密封作用。目前我國主要建筑防水材料有以下四大系列品種,其發展趨勢如下:

  1. 密封材料 應提高改性瀝青密封膏的質量,積極發展丙烯酸、聚四氟乙烯、聚氨酪、硅酮、聚硫等密封膏。

    2.高分子卷材 生料帶以PVC卷材為主,適當發展三元乙丙、氯化聚乙烯等彈性、彈塑性高分子防水卷材。以擠出成型工藝為主,逐步采用內增塑技術。

    3.防水涂料 應以水性厚質氯丁和丁苯膠乳改性瀝青為主,大力發展丙烯酸及聚氨酯防水涂料。

    4.瀝青油氈 應提高紙胎油氈質量,加快發展改性瀝青油氈。瀝青改性采用SBS為主,積極利用APP相其它橡塑高分子材料。生料帶胎體由紙胎逐步改變為采用玻纖胎、合成纖維胎。在減少環境污染,保證產品質量的前提下,對不同產品采用不同撤布方法:大中型企業可采用塔式氧化裝置;小型企業沒有條件建氧化裝置,可直接使用符合生產工藝的氧化瀝青。


    Raw material belt is waterproof material, mainly used for sealing of agricultural water supply, drainage engineering, hydraulic engineering, etc. At present, China's main building waterproof materials have the following four series of varieties, the development trend is as follows:

    1. Sealing materials should improve the quality of modified asphalt sealing paste, and actively develop acrylic acid, polytetrafluoroethylene, polyurethane, silicone, polysulfide and other sealing paste.

    2. The raw material tape of high polymer coil is mainly PVC coil, and appropriate development of epDM, chlorinated polyethylene and other elastic, elasto-plastic polymer waterproof coil. To extrusion molding process, gradually using internal plasticizing technology.

    3 waterproof coating should be based on water-based thick chloroprene and styrene butadiene latex modified asphalt, vigorously develop acrylic and polyurethane waterproof coating.

    4. Asphalt felt should improve the quality of paper tire asphalt felt, speed up the development of modified asphalt felt. Asphalt modification mainly adopts SBS, and actively uses APP phase other rubber and plastic polymer materials. The raw material with the tire body gradually changed from paper to glass fiber tire, synthetic fiber tire. On the premise of reducing environmental pollution and ensuring product quality, different methods of displacing different products are adopted: tower oxidation device can be used in large and medium-sized enterprises; Small enterprises do not have the conditions to build oxidation equipment, can directly use in line with the production process of oxidized asphalt.


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