以杉木纵横交错层积材为基材的地热地板研制  

Development of electrical heated wood flooring using cross-laminated Chinese fir as core layer

作　　者：潘彪[1] 石江涛[1] 朱一辛[1] 阙泽利[1] 陈磊 

机构地区：[1]南京林业大学材料科学与工程学院,南京210037 [2]杭州新竹文化创意有限公司

出　　处：《林业科技开发》2015年第4期75-78,共4页China Forestry Science and Technology

基　　金：国家"十二五"科技支撑计划项目(2012BAD24B00);江苏高校优势学科建设工程资助项目(PAPD)

摘　　要：以人工林杉木纵横交错排层积材为基材,采用网状导电节点连接与热熔胶(PUR)胶合制备地热地板,测定其导热效能、通电后温度变化、连续通电后的耐热干缩率以及耐湿膨胀率,并与杉木纵横交错层积材、径切板、弦切板进行比较。结果表明:地热地板通电1 h后板面平均温度达到29.8℃,连续通电72 h的耐热干缩率和80%湿度处理的耐湿膨胀率均可满足木质地板采暖国家标准的相关要求。杉木板材的纵横交错层积排列有效地提高了耐热干缩率和耐湿膨胀率,完全可以用作地热地板的基材,为低等级杉木在地热地板中的应用及高附加值产品开发提供了理论依据。Electrical heated wood flooring using cross-laminated fast-grown Chinese fir as core layer was developed. The flooring is connected by conductive node network and glued by hot melt adhesive. The heat conduction,temperature variation,shrinkage and swelling of the heated samples were measured and compared with that of cross-laminated,quarter-sawn or flat-sawn Chinese fir boards. The results showed that the sample temperature reached 29. 8 ℃ after 1 h heating. The shrinkage after 72 h heating and the swelling after the 80% relative humidity could meet the demands of the national standard on wood floor heating system. The cross-laminated structure effectively improves the dimensional stability of the flooring and is a qualified core layer structure,which provides a theoretical basis on the utilization of fast-grown Chinese fir in radiant floor heating system or other high value-added products.

关 键 词：速生杉木 地热地板 纵横交错层积材 耐热干缩率 耐湿膨胀率 

分 类 号：S781.37[农业科学—木材科学与技术]