Manufacturing method of high-strength long bamboo fiber bundles

Abstract

The invention relates to a manufacturing method of high-strength long bamboo fiber bundles. The manufacturing method comprises the following steps of (1) pretreating bamboo wood; (2) conducting high-temperature saturated vapor treatment on the bamboo wood; and (3) rolling the bamboo wood and dispersing the bamboo wood into bamboo fiber bundles. The manufacturing method has the advantages that fresh round bamboo tubes or bamboo chips soaking in the water are adopted and are subjected to fast heat treatment with high-temperature saturated vapor for 10-60 min; the bamboo fiber bundles are separated easily through multi-roll longitudinal rolling or single-roll transverse rolling or hammering to obtain the high-strength long bamboo fiber bundles; as the bamboo chips contain water, parenchyma tissues between the bamboo fiber tube bundles are destructured under the actions of pyrohydrolysis and high-temperature pyrolysis; the bamboo fiber tube bundles are separated easily. The manufacturing method is adopted for producing the high-strength long bamboo fiber bundles and has the advantages that the cost is low; no chemical reagents are added; the treatment method is simple; the time is short; the strength of fibers is hardly reduced; and the high-strength long bamboo fiber bundles can be used as fuel or organic fertilizer for fertilizing the soil after being discarded.

Description

technical field [0001] The invention relates to a method for manufacturing high-strength long-bundle bamboo fibers, which belongs to the technical field of bamboo processing in the wood industry. Background technique [0002] Most natural fiber composites use bundled fibers. The bamboo bundle fiber preparation methods of bamboo mainly include chemical segregation and physical dispersal, among which sulfite pulping is the representative, and the regeneration of cellulose is realized by removing lignin. Combination is usually used for textile; while the physical unwinding method represented by mechanical rolling is to achieve the reorganization of vascular bundles by effectively separating parenchyma cells. It is known that the tensile strength of a single bamboo fiber is as high as 1770MPa (chemical separation), 930MPa (mechanical separation); The tensile strength of bamboo silk fibers formed by the separation of multiple vascular bundles of bamboo parenchyma cells reaches 6...

AI Technical Summary

Problems solved by technology

The chemical segregation method needs to spend chemical reagents, and the treatment of wastewater is also a big problem; the use of physical dispersing is labor-intensive and time-consuming, and it cannot accurately destroy the parenchyma cells, and the fibers are cut and cut during dispersing, and the strength is greatly reduced.