竹柳材性、纤维形态及其特性的研究

A Study on the Wood Properties, Fiber Morphology and Characteristics of Bamboo-Willow

对竹柳的材性、纤维形态及其特性进行研究。结果表明:竹柳的基本密度、气干密度分别为0.414 g·cm-3、0.421g·cm-3;从木质部边缘到材心色度洁白,其木粉自然白度62.13%;灰分含量0.66%,木素含量20.66%,热水抽出物高于冷水抽出物,说明含有较多的可溶性多糖;纤维素含量46.80%,高于白夹竹和杨木;竹柳壁腔比小于1,其1年生竹柳纤维的长宽比小于45,5年生竹柳纤维的长宽比大于45,5年生竹柳更适合于制高得率浆。

The wood properties, fiber morphology and characteristics of Bamboo-willow were studied. The results showed that the basic density of bamboo-willow is 0.414g·cm^-3, the air-dry density is 0.421 g·cm^-3; it is white that the xylem from the edge to the heart, its natural whiteness is 62.13%; its ash content is 0.66%, the lignin content is 20.66%, the hot water extract is higher than the cold water extract, so it contains more soluble polysaccharide; the cellulose content is 46.80%, higher than the white clip bamboo and poplar; the wall to lumen ratio is less than 1, the length-width ratio of one year bamboo-wiUow fiber is less than 45, the length-width ratio of five years bamboo-willow fiber greater than 45, so five years bamboo-willow is more suitable for high-yield pulp.