The Preparation And Properties Of Palm Fiber

Palm fiber is an excellent natural fiber, with high hollow, good elasticity, corrosion resistance, low density, high water absorption, etc. But palm fiber’s texture hard has seriously hindered the reflection of value. In this paper, persistent dispersed palm fiber was prepared by surface acetylation modification after the acetic acid and alkali oxygen united degumming. The properties of palm fiber were characterized.The methods of acetic acid and alkali oxygen degumming were used to treat the palm fiber, separately. Analytically, acetic acid degumming could effectively remove the lignin, and the content reduced from 38.00% to 6.18%. While alkali oxygen degumming could mainly remove the hemi-cellulose, and content decreased from 26.21% to 9.43%.Finally the acetic acid and alkali oxygen united degumming method was put forward,which could produce the palm fiber with the cellulose content of 86.97%, the content of lignin and hemi-cellulose were 2.76% and 8.45%, respectively.Vacuum freeze-drying technology and surface chemical modification technology were used to get dispersed palm fiber. Vacuum freeze-drying method could produce good dispersion of palm fiber when the fiber content was at or below 15g/L. Surface modification acetylation technology came from the exploration of chemical modification and the optimized process was studied. Finally the palm fiber which could prevent water blocking was produced.The warmth retention, fluffy, compressibility, breathability and moisture permeability of palm fiber which prepared by the method of acetylated were characterized. Then these properties were compared with four simple kinds of filling materials and the palm fiber made from vacuum freeze-drying. The results were as follows: palm fiber that made from surface modification acetylation kept the warmth retention property of fiber has the highest warmth retention. Heat transfer coefficient was only 0.048w/(m*C). There were certain fluffy, compressibility, breathability and moisture permeability for palm fiber to satisfy the needs as warm filling material.