林产化学与工业
林產化學與工業
림산화학여공업
CHEMISTRY AND INDUSTRY OF FOREST PRODUCTS
2015年
4期
1-7
,共7页
徐德良%付鑫%徐朝阳%王思群%孙军%周定国
徐德良%付鑫%徐朝暘%王思群%孫軍%週定國
서덕량%부흠%서조양%왕사군%손군%주정국
扫描热显微镜技术%稻草%红橡%细胞壁%传热特性
掃描熱顯微鏡技術%稻草%紅橡%細胞壁%傳熱特性
소묘열현미경기술%도초%홍상%세포벽%전열특성
SThM%rice straw%red oak%cell wall%thermal conductivity properties
为了探讨生物质材料微观导热性能,以红橡和稻草为研究对象,使用扫描热显微镜技术(SThM)研究2种生物质材料细胞壁层级的微观传热特性及微观结构特性。研究结果表明,SThM的热传导模式可以对生物质细胞结构进行较好的扫描成像,2种生物质细胞壁在横切面的导热特性近似,即细胞壁的胞间层( CML)导热性能明显低于S2层导热性能,电流值相差1μA左右。
為瞭探討生物質材料微觀導熱性能,以紅橡和稻草為研究對象,使用掃描熱顯微鏡技術(SThM)研究2種生物質材料細胞壁層級的微觀傳熱特性及微觀結構特性。研究結果錶明,SThM的熱傳導模式可以對生物質細胞結構進行較好的掃描成像,2種生物質細胞壁在橫切麵的導熱特性近似,即細胞壁的胞間層( CML)導熱性能明顯低于S2層導熱性能,電流值相差1μA左右。
위료탐토생물질재료미관도열성능,이홍상화도초위연구대상,사용소묘열현미경기술(SThM)연구2충생물질재료세포벽층급적미관전열특성급미관결구특성。연구결과표명,SThM적열전도모식가이대생물질세포결구진행교호적소묘성상,2충생물질세포벽재횡절면적도열특성근사,즉세포벽적포간층( CML)도열성능명현저우S2층도열성능,전류치상차1μA좌우。
The application of scanning thermal microscopy ( SThM ) technique in the studies of bio-composites interface characteristics and the thermal conductivity characteristics in micro-scale of biomass materials was discussed using red oak and rice straw cell as research objects. The results indicated that the thermal conductivity mode of SThM could imaged the microstructure of biomass cell very well, and the thermal conductivity characteristics of these two biomass were similar. This showed that the thermal conductivity of S2 layer was higher than that of middle lamella of cell wall( CML) .
