泡桐纤维变化及其制浆造纸研究

以8~11年生泡桐为研究对象,主要探究了泡桐枝材、根材的生物量分配比及木纤维变化规律,研究泡桐枝材、根材用于制浆造纸的可行性。结果表明:泡桐枝材、根材在整株生物量中所占分配比较高;泡桐枝材木纤维含量、纤维长度随枝龄的增加而呈现递增趋势,并逐渐接近于树干材;泡桐化学性质稳定,综纤维素含量高;用枝材、根材制得的纸浆理化性质符合国家标准,多数物理强度指标表现优异。泡桐废弃枝材、根材可作为造纸纤维原料进行资源化利用。

Study on Fiber Changes of Paulownia and Its Pulping and Papermaking

Taking 8 to 11-years-old Paulownia as research object, the biomass distribution ratio of the branch and root of Paulownia and the change rule of wood fiber were studied. The results showed that the distribution of Paulownia branch wood and root wood in the biomass of the whole plant was relatively high;the fiber content and length of Paulownia branch wood increased with the increase of branch age, and gradually approached to the dry wood;the chemical properties of Paulownia were stable, and the content of brown cellulose was high;the physical and chemical properties of pulp made from branch wood and root wood met the national standards, and most physical strength indexes were excellent. The waste branch and root of Paulownia can be used as the raw material of papermaking fiber for resource utilization.