Papers by Author: Jian Ping Sun

Abstract: The wheat straw was pretreated using heat-treatment and water action and then diversified flat weave experiments were performed. Effects of the technology of knitting (including machinery spinning method, sewing spelling method, weaving process of "picks one pressures one" and "picks two pressures two") on veneer material quality and technology of decorative facing was investigated. The results show that both of sewing spelling method and weaving process of "pick two pressure two" achieve better effect with close construction, level, nice appearance and simple to weave. Experiments for optimizing the technology were performed by using non-woven fabric as the laminated veneer materials, The optimal technical parameters when using non-woven fabric were as follows: MDI 1.5％ and UF 8％ with the dosage of 50-80g/m2; temperature of 85-105°C; pressure of 0.2-0.5 MPa; time of 25min(10 sheet at a time).

Abstract: A new kind of bio-based composite panel with veneer material and performance of decorative material was produced by process of dissection, staining, weaving and collage. The bio-based composite panel was instructed with art design using the wheat straw as raw material. The facing technology of the bio-based composite panel with wheat straw veneer material was investigated and no previous research using pretreated wheat straw to produce the veneer material with characteristic of decorative function. The bonding strength was measured and it reached 0.75 MPa. It is demonstrated that pretreated wheat straw can be used for furniture manufacturing and decorative applications directly.

Abstract: This article introduces the fractal theory and its applications in wood fracture、wood texture、wood drying 、wood defect nondestructive detecting and other fields in wood science researching, among which many researching results are characterised by fractal dimension. While the methods in other fields which fractal were used in their researches were refered , the writer attempts to apply them in wood science researches.At last the new viewpoints and its applications were proposed.