Flame-retardant anti-corrosive fiber bamboo base material and preparation technology thereof

Abstract

The invention discloses a flame-retardant anti-corrosive fiber bamboo base material and a preparation technology thereof. The method comprises the following steps of: 1) cutting raw bamboo into bamboo filament; 2) flame-retardant treatment: soaking the bamboo filament prepared in the step 1) in a flame retardant aqueous solution; 3) drying: after the flame-retardant treatment, drying the bamboo filament at 55-65 DEG C until the absolute water content does not exceed 12%; 4) carbonization pyrolysis: feeding the dried bamboo filament into a carbonization pyrolysis kiln, and performing high-temperature treatment according to the pyrolysis gradient; and 5) sequentially performing gumming, post-gumming drying, pressing, curing, maintaining and splitting to obtain the bamboo base material. The bamboo base material has strong stability, the product surface does not crack, the corrosion resistance is enhanced, good flame retardance is realized, and the bamboo base material can be used in various weathers and environments.

Description

technical field [0001] The invention belongs to the field of bamboo products, and in particular relates to a flame-retardant and anti-corrosion fiber bamboo substrate and a preparation process thereof. Background technique [0002] Bamboo is the second forest resource in my country. The main material output accounts for about 1 / 10 of the timber. The resource is rich and concentrated. It is a renewable resource. After a forest is formed, it can be used sustainably as long as it is managed reasonably. Bamboo grows It can be harvested in 3 to 5 years, and it is generally suitable for 5 to 8 years for bamboo flooring. my country has long been facing the contradiction that the supply of wood is in short supply. Substituting bamboo for wood has given the rich bamboo material development, utilization and processing. Bamboo flooring offers good opportunities for development. Bamboo products are widely used in the field of life. Usually, the preparation process of bamboo product base...

AI Technical Summary

Problems solved by technology

The existing technology has the following technical problems: (1) When the bamboo slices are loosened and decompressed, it is necessary to remove green, yellow, and knots. Due to the curvature of the surface of the bamboo slices, when scraping off the green, yellow, and knots of the bamboo slices, it will be partially useful Bamboo is also scraped off, resulting in waste

(2) Bamboo itself has good flammability and is more flammable than wood. Bamboo products are prone to fire hazards when used as substrates

(3) The carbonization of the existing bamboo fiber adopts the wet carbonization process (steam carbonization), the activity of the bamboo fiber tube is not completely removed, it can absorb moisture and expand, and the stability of the base material is poor; the base material produced by the conventional process adopts the test of outdoor products Method to test, after 2 hours of cooking, it will be severely expanded and cracked

The active substances of bamboo fiber tubes are not completely removed, providing nutrients for decaying bacteria, easy to mold in a humid environment, and have poor corrosion resistance

And the wet carbon process is easy to produce waste gas and waste water, causing environmental pollution and energy waste