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岩棉夾芯板在農業方面的應用

作者：潘先生閱讀量：发布日期： 2022/1/17 15:59:24

信息摘要：

岩棉在農業領域也發揮著十分重要的作用，是伴隨無土栽培技術的不斷成熟而發展起來的，至今已有100多年的曆史。在國外，丹麥、法國、美國、西班牙、波蘭和荷蘭都有廠家專門生産農用岩棉，其中丹麥Grodon産量占全球銷量的60%以上，生産工廠分布在丹麥、荷蘭和美國，銷售網絡遍布全球。隨著我國設施農業的不斷發展和溫室設施的大量推廣，我國也已成爲全世界設施農業發展速度和現有溫室面積最大的國家之一。農用岩棉是由約60%玄武岩、20%焦碳、20%石灰石，加上少量煉鐵後的礦渣經高溫熔融、成形，最後經壓縮、固化成特定密度後再裁剪而成。在這個過程中，加入了具有表面親水作用的黏結劑，具有良好的親水性。農用岩棉容重較小，一般在60~80kg/m3，其中有3%體積的纖維和97%體積的孔隙，因此具有良好的透氣性和保水性。經過1600攝氏度的高溫提煉，無菌、無汙染，因此成爲無土栽培最好的基質材料。岩棉的應用在中國只有短短的二三十年曆史，在建築領域的應用更是近幾年才得到蓬勃發展，在農用等領域的發展還有很大的上升空間，但其出衆的保溫隔熱、吸音降噪、防火安全性能已經得到各行各業越來越多的關注。

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