Bamboo Charcoal Micropowder Polylactic Acid Chip Production Fiber System

Abstract

A system for producing fibers from bamboo charcoal micro powder and polylactic acid slices comprises a first material bin, a second material bin, a compressed air system, a spinning screw extruder and a spinning box, wherein a discharging port of the second material bin is connected with a feeding port of the spinning screw extruder through a main discharging pipe; an air pipe is obliquely arranged between an air outlet of the compressed air system and the main discharging pipe; a discharging port of the first material bin is connected with the air pipe through a mixing pipe; a toner meter is arranged on the mixing pipe; a discharging port of the spinning screw extruder is connected with the spinning box through a melt pipeline; a filtering and impurity removal device and a dynamic and static integrated pipeline type mixing device are sequentially arranged on the melt pipeline in the melt flowing direction. Polylactic acid is modified with nano bamboo charcoal micro powder, the initial modulus of the manufactured fibers is reduced, the moisture regain rate is increased, the wear resistance is improved, and the air breathability and the hand feeling of the fibers are remarkably improved.

Description

technical field [0001] The utility model belongs to the technical field of polylactic acid fiber production, in particular to a bamboo charcoal micropowder polylactic acid slice production fiber system. Background technique [0002] Polylactic acid (PLA) fiber is made from corn, wheat, sugar beet, potato and other starchy agricultural products, which are fermented to produce lactic acid, and then polycondensed and melt-spun. The raw materials of PLA fiber come from a wide range of sources. It can be decomposed into carbon dioxide and water by microorganisms in soil or seawater. When burned, it will not emit poisonous gas and cause pollution. It is a sustainable ecological fiber. The fabric has good hand feeling and drapability, anti-ultraviolet radiation, low flammability and excellent processing performance. It is suitable for various fashion, casual wear, sporting goods and sanitary products, etc., and has broad application prospects. [0003] Polylactic acid (PLA) fiber ...

AI Technical Summary

Problems solved by technology

[0003] Polylactic acid (PLA) fiber has many advantages such as antibacterial, smooth, quick-drying, etc., but its wear resistance is poor, and its moisture regain is low. Compared with other chemical fiber textile fabrics, the textile fabric produced by it is obviously harder, which seriously affects the use effect.

In addition, due to the long delivery pipeline of polylactic acid, the viscosity of the polymer melt near the pipe wall is particularly large, and the molecular weight distribution of the polymer due to the uneven melt flow rate during the transportation of the polylactic acid melt is wide ( Inhomogeneity) problems, impurities can not be effectively filtered out, thus affecting the quality of spinning

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