日本Sekisui Chemical和Toryo共同開發防腐蝕板材

撰文者: 塑膠智庫 | 出刊日期:2021-06-16 | 文章編號:G5ERPC5M2E


Dai Nippon Toryo Co. Ltd.和Sekisui Chemical Co. Ltd.共同開發了一種板材產品,該板材包含鋅粉成分,可以提供防腐蝕的保護。


新的薄板具彈性,通過自修復黏合劑層和鋅粉提供的保護功能

採用黏貼的概念,新的紙張使用者可以更輕鬆地塗覆均勻的外表。此外,表面上的阻擋膜還可以防止腐蝕劑,黏合劑層和阻擋層的總厚度約為0.65毫米。另外薄板本身具有彈性,因此裂縫可以被自動掩蓋,然後通過自修復黏合劑層和鋅粉提供保護。如果裂紋或老化對於這種自我修復功能而言太大,則鋅會液化以在表面形成一層塗層,從而為鋼表面提供保護。這是業內同類產品中生產這種具有保護作用的板材的第一種方法。
 

新的薄板在各種環境中都能保持其黏著性

新的薄板在各種環境中都能保持其黏著性,並且已發現其在高達150度的溫度下具有耐熱性。阻擋層表現出高水平的耐熱性,而黏合層提供紫外線的保護。
 

新的薄板具防腐性能易於施工,能解決建築物鋼結構老化的問題

展望未來,日本將面對戰後經濟繁榮時期數十年前建造的建築物的維護需求激增。隨著建築和維修行業勞動力短缺的鋼結構老化,Dai Nippon Toryo和Sekisui Chemical將把他們的新板材推向市場,該產品具有與油漆一樣的防腐性能,同時也更易於施工。

參考資料

Dai Nippon Toryo Co. Ltd. (TYO:4611) and Sekisui Chemical Co. Ltd. (TYO:4204) have jointly developed a sheet product that includes zinc dust to offer sacrificial protection from corrosion.
By going with the concept of pasting rather than painting, the new sheet allows users to more easily apply an even coat. In addition, a barrier film on the surface serves to keep out corrosive agents such as moisture and salt, which means the sheet can be used in conjunction with various other coatings.
The combined thickness of the adhesive layer and the barrier layer comes to approximately 0.65 millimeters. The sheet itself is elastic so that cracks are covered up automatically, with the protective functionality then being ensured by both the self-repairing adhesive layer and the sacrificial protection provided by the zinc dust. If cracks or aging are too much for this self-repair feature, the zinc liquates to form a coat over the spot, offering protection for steel surfaces. This is being called the industry’s first method of its kind to produce such a sheet with sacrificial protection.
The new sheet retains its adhesiveness in a wide range of environments – whether wet, hot or cold – and has been found to have thermal resistance at temperatures of up to 150 degrees Celsius. The barrier layer exhibits a high level of weather resistance, while the adhesive layer offers protection from UV light.
Going forward, Japan is to face a surge in maintenance demand for buildings constructed decades ago as part of the country’s postwar economic boom. With steel structures aging amid a labor shortage in the construction and maintenance sectors, Dai Nippon Toryo and Sekisui Chemical will market their new sheet as a product that offers anti-corrosive performance on par with paints while also being easier to apply.

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