Papers by Author: Ya Di Liu

Abstract: Bamboo fiber is a new natural green environmental protection fiber material with good characteristics of good permeability, unique elasticity, transient absorption, antibacterial, odor resistance and stronger vertical and horizontal intensity. Bamboo pretreatment can improve the biological degumming efficiency of bamboo lignin, reduce microbial degumming time, and reduce production costs. The results show that the removal efficiency of pectin, hemicelluloses and lignin are better after the pretreatment of bamboo mercerization. Through orthogonal experiments, it can be got the optimum combination of bamboo fiber alkali cooking process is A2-B2-C2-D1, namely: concentration of NaOH is 6.0g / L, its time is 60min, temperature 100 °C, and bath ratio 1:20. In these four factors, the greatest impact on the removal of lignin is temperature, followed by is degumming time, then the concentration of alkali, and the bath ratio is the smallest. The best conditions of bamboo fiber bleaching is: hydrogen peroxide 25 ~ 35g / L, temperature 30 ~ 40 °C, treatment 45 ~ 60min. The process of the pretreatment of bamboo is: clip → Roll → high-pressure steaming → roll→ immersion separation → alkali leaching treatment→ scouring → rolling combing →washing→ drying →crude fiber → bleaching.

Abstract: With the extensive utilization of the bamboo industrialization, especially in developmental fields of bamboo-based panel, bamboo composite board, bamboo decoration, furniture manufacturing, which makes the application of bamboo have a broader prospect. However, the bamboo and its products in process of processing, transport and implementation often appear mildew, decay, moth-eaten, especially the mildew, it not only affects the appearance of bamboo and its products, but also creates damage conditions for other bacteria and insects. Therefore, bamboo timber preservation processing is the essential link for using bamboo industrialization. From the kinds of bamboo mould and its physiological characteristics, anti-mould technology and the types of mould inhibitor, this paper introduces the general situation at home and abroad and the existing problems and development trends of bamboo timber preservation, aiming to have a more comprehensive and systematic understanding of people for the bamboo mould and timber preservation, and to provide references for further study on the comprehensive anti-mould technology and preparation.