中国建材科技
中國建材科技
중국건재과기
CHINA BUILDING MATERIALS SCIENCE & TECHNOLOGY
2013年
4期
1-2,15
,共3页
张玉辉%穆秀君%隋承鑫%彭超%李贵强
張玉輝%穆秀君%隋承鑫%彭超%李貴彊
장옥휘%목수군%수승흠%팽초%리귀강
无机绝热材料%导热系数%密度%温度%相对湿度
無機絕熱材料%導熱繫數%密度%溫度%相對濕度
무궤절열재료%도열계수%밀도%온도%상대습도
inorganic insulation material%thermal conductivity%density%temperature%relative humidity
玻璃棉和岩棉是无机绝热材料中具有代表性的产品。本文对不同密度、温度和相对湿度条件下玻璃棉和岩棉的导热系数变化规律进行了系统研究。结果表明,玻璃棉和岩棉的导热系数随着密度的增大而逐渐减小。随着测试温度的升高,玻璃棉板和岩棉板的导热系数逐渐增大且其导热系数随温度呈线性关系。玻璃棉板和岩棉板的导热系数随相对湿度的增大呈现增大的趋势,玻璃棉板和岩棉板属于吸湿性材料,随着相对湿度的增大,水分进入材料的孔隙导致保温绝热性能下降。
玻璃棉和巖棉是無機絕熱材料中具有代錶性的產品。本文對不同密度、溫度和相對濕度條件下玻璃棉和巖棉的導熱繫數變化規律進行瞭繫統研究。結果錶明,玻璃棉和巖棉的導熱繫數隨著密度的增大而逐漸減小。隨著測試溫度的升高,玻璃棉闆和巖棉闆的導熱繫數逐漸增大且其導熱繫數隨溫度呈線性關繫。玻璃棉闆和巖棉闆的導熱繫數隨相對濕度的增大呈現增大的趨勢,玻璃棉闆和巖棉闆屬于吸濕性材料,隨著相對濕度的增大,水分進入材料的孔隙導緻保溫絕熱性能下降。
파리면화암면시무궤절열재료중구유대표성적산품。본문대불동밀도、온도화상대습도조건하파리면화암면적도열계수변화규률진행료계통연구。결과표명,파리면화암면적도열계수수착밀도적증대이축점감소。수착측시온도적승고,파리면판화암면판적도열계수축점증대차기도열계수수온도정선성관계。파리면판화암면판적도열계수수상대습도적증대정현증대적추세,파리면판화암면판속우흡습성재료,수착상대습도적증대,수분진입재료적공극도치보온절열성능하강。
Glass wool and rock wool are the typical products of the inorganic insulation materials. the influences of density, temperature, relative humidity on the thermal conductivity of glass wool and rock wool were researched in this paper. The results show that thermal conductivity of glass wool and rock wool decreases with the increasing of density. With the temperature increasing, the thermal conductivity of glass wool and rock wool increased and varied linearly. The thermal conductivity of glass wool and rock wool also increased with the rise of relative humidity. Because the glass wool and rock wool are hygroscopicity materials, the water easily entering the porosity of materials and the insulation property decreased with the increase of relative humidity .