Abstract: Extraction of PMFT vine fiber and research its physical properties Abstract:PMFT vine degummed with alkali and other assistant reagents,like odium poly-phosphate, sodium silicate, sodium sulfite to extract PMFT vine single fiber. Its length, fineness were measured;the structure was characterized by microscopy, X-diffraction and ATR-FTIR;the properties of moisture absorption and desorption were test.The results show that,the average length and diameter of the single-fiber are 12.29mm, 11.65μm and their coefficient of variation have reached 34.20 %, 21.58% respectively.The longitudinal view of the fiber shows convolution, nodes, the cross-sectional view is irregular oval shaped with the cavity. The degree of crystallinity and orientation of the fiber were 59.45% and 0.88 respectively; the infrared spectrum picture shows the fiber as cellulose fiber. Density of fiber is 1.58 g/cm-3 .The moisture regain of fiber is 8.22%, the properties of moisture absorption and desorption are between cotton and ramie fiber.Therefore,the fiber is probably a new kind of textile fiber material.

Key words: Polygonum multiflorum rattan fiber, degumming, geometric property, moisture regain