建筑防排煙風管是建筑防排煙系統的重要組成部分。在火災發生時，防煙風管輸送和補充加壓空氣維持逃生通道和空間不受煙氣的侵入；排煙風管及時排除火災產生的大量煙氣，以利于人員的轉移和疏散。常見的做法是在鍍鋅鋼板風管包覆絕熱材料，以保證防排煙風管在火災發生時能維持一定時間內的有效工作。

Building smoke exhaust ducts are an important component of building smoke exhaust systems. In the event of a fire, smoke ducts transport and supplement pressurized air to maintain escape routes and spaces from smoke intrusion; Smoke exhaust ducts should promptly eliminate a large amount of smoke generated by fires, in order to facilitate the transfer and evacuation of personnel. The common practice is to coat the galvanized steel sheet air duct with insulation material to ensure that the smoke exhaust duct can maintain effective operation for a certain period of time in the event of a fire.

玻璃棉是一種常見的絕熱材料，廣泛應用于建筑的保溫和隔熱。那么玻璃棉是否能適用于防排煙風管的耐火包覆呢？我們將從以下幾個方面進行闡述：

Glass wool is a common insulation material widely used in building insulation and thermal insulation. Can glass wool be suitable for fire-resistant coating of smoke exhaust ducts? We will elaborate on the following aspects:

高溫玻璃棉制品為可以用于高溫工況（熱面溫度大于250攝氏度），且通過使用溫度評估的玻璃棉制品。那么高溫玻璃棉制品的使用溫度到底是多少呢？筆者查詢了全球幾個知名的玻璃棉制造商官網，如歐文斯科寧0WENSCORNING、圣戈班伊索維爾SAINT-GOBAINISOVER、杰斯曼Johns Manvi11e等，其公布的耐高溫絕熱玻璃棉產品的使用溫度均在300~500攝氏度：

High temperature glass wool products are glass wool products that can be used for high temperature conditions (hot surface temperature greater than 250 degrees Celsius) and have been evaluated by the highest operating temperature. So what is the maximum operating temperature for high-temperature glass wool products? The author searched the official websites of several well-known glass wool manufacturers around the world, such as Owens Corning 0WENSCORNNING, Saint Gobain Isavier SAINT-GOBAIRISOVER, and Jessman Johns Manvi11e. The maximum usage temperature of their high-temperature resistant insulation glass wool products is all between 300 and 500 degrees Celsius

玻璃棉材料及制品，為何其使用溫度范圍特別是耐高溫性均在300~500攝氏度范圍，很難突破呢？這是由于玻璃棉制品的材料構成和生產工藝所決定的。

Why is it difficult to break through the temperature range, especially the high temperature resistance, of glass wool materials and products in the range of 300-500 degrees Celsius? This is determined by the material composition and production process of glass wool products.

玻璃棉是將熔融玻璃纖維化并加以熱固性樹脂為主的粘結劑加工而成的制品，其主要成分為玻璃纖維。玻璃纖維本身是不燃的，且具備一定的耐高溫性。

Glass wool is a product made by processing molten glass fibers with a thermosetting resin based binder, and its main component is glass fiber. Fiberglass itself is non combustible and has a certain degree of high temperature resistance.

但是玻璃纖維制成玻璃棉制品必須添加樹脂類粘結劑，起到粘結玻璃纖維和維持結構支撐的作用。在遇到高溫（通常為200~300攝氏度）時，樹脂類粘結劑即會炭化和熔解，玻璃棉就會失去結構支撐，這就是玻璃棉無法耐受500攝氏度以上高溫的關鍵因素。

However, when glass fiber is used to make glass wool products, resin adhesives must be added to bond the glass fiber and maintain structural support. When encountering high temperatures (usually 200-300 degrees Celsius), resin adhesives will carbonize and melt, and glass wool will lose structural support. This is the key factor that glass wool cannot withstand high temperatures above 500 degrees Celsius.

本文由華美玻璃棉板友情奉獻.更多有關的知識請點擊:http://www.weigoulai.net真誠的態度.為您提供為的服務.更多有關的知識我們將會陸續向大家奉獻.敬請期待

This article is dedicated to the friendship of American glass wool board. For more related knowledge, please click: http://www.weigoulai.net Sincere attitude. We will provide you with comprehensive services. We will gradually contribute more relevant knowledge to everyone. Stay tuned