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濟南復合板密度與板材的導熱系數有什么關系

來源:http://www.ebassfish.com/ 日期:2021-06-10 發布人:jiangucaigang
眾所周知,復合板產品的強度,尤其是抗拉強度,對抵抗風壓非常重要。但是對于復合板在建筑保溫領域的應用,市場上有一種錯誤的思維,以外墻保溫系統為例,高密度的復合板產品機械強度必然更好,要提高機械強度,就要提高復合板材料的密度。
As we all know, the strength of composite board products, especially the tensile strength, is very important to resist wind pressure. But for the application of composite board in the field of building insulation, there is a wrong thinking in the market. Taking the external wall insulation system as an example, the mechanical strength of high-density composite board products is bound to be better. To improve the mechanical strength, it is necessary to improve the density of composite board materials.
因此,在我國許多地方技術法規或標準中,都對外墻外保溫系統中使用的復合板提出了密度要求,但過高的密度會導致導熱系數的增加,從而削弱濟南復合板的保溫性能,給施工和安裝帶來不便。
Therefore, in many local technical regulations or standards of our country, the density requirements of composite board used in external thermal insulation system are put forward, but too high density will lead to the increase of thermal conductivity, which will weaken the thermal insulation performance of Jinan composite board and bring inconvenience to construction and installation.
事實上,在歐洲市場上已經出現了解決這個問題的方案,并且有成熟的應用經驗,不僅可以保證較高的機械強度和較低的導熱系數,還可以降低復合板的綜合密度。
In fact, solutions to this problem have appeared in the European market, and have mature application experience, which can not only ensure higher mechanical strength and lower thermal conductivity, but also reduce the comprehensive density of composite board.
復合板產品在中國已有幾十年的發展歷史。由于近年來建筑和工業領域火災頻發,作為一種防火性能優異的A類保溫材料-復合板,受到各界人士的高度重視和推崇行業。眾所周知,導熱系數和密度是保溫材料測試項目中非常重要的測試指標。導熱系數是衡量材料熱性能的指標,而密度指數是衡量保溫材料是否在技術要求范圍內的較好指標。
Composite board products have developed for decades in China. In recent years, due to the frequent fire in the construction and industrial fields, as a kind of class a insulation material with excellent fire performance, composite board is highly valued and respected by people from all walks of life. As we all know, thermal conductivity and density are very important test indexes in the thermal insulation material test project. Thermal conductivity is an index to measure the thermal performance of materials, while density index is a better index to measure whether the thermal insulation materials are within the technical requirements.
對于纖維材料,導熱系數的變化與纖維的直徑、方向排列和密度有關產品。當纖維的直徑和排列不變時,濟南復合板產品的密度過低或過高,對保溫或隔熱功能的貢獻不明顯,其密度分布范圍一般為80-100kg/m,從隔熱的角度來看。
For fiber materials, the change of thermal conductivity is related to the diameter, orientation and density of fibers. When the fiber diameter and arrangement remain unchanged, the density of Jinan composite board is too low or too high, and its contribution to the heat preservation or heat insulation function is not obvious. The density distribution range is generally 80-100kg / m, from the perspective of heat insulation.
對于不同的系統應用,在選擇復合板材料或開發復合板產品時可以遵循一些基本原則:在滿足使用要求(如強度、防火安 全等)的前提下。導熱系數要盡量降低,密度要在合理的范圍內。
For different system applications, some basic principles can be followed when selecting composite board materials or developing composite board products: on the premise of meeting the use requirements (such as strength, fire safety, etc.). The thermal conductivity should be reduced as far as possible and the density should be in a reasonable range.
此文關鍵詞: 濟南復合板  

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