Tree branch flame-retardant wall board processing method

Abstract

The invention discloses a tree branch flame-retardant wall board processing method. The method includes steps: preparing an inorganic sulfur magnesium cement adhesive; guiding the inorganic sulfur magnesium cement adhesive into an adhesive tank to keep for standby application; arranging branches; adopting a roller press for pressing the arranged branches into branch strips, airing until the moisture content is below 15%, and grading according to practical lengths of the branches to keep for standby application; subjecting the branch strips to splicing, stacking and spreading according to graded lengths, placing in a impregnation cage, wherein joints of the layered branch strips are staggered; suspending the impregnation cage into the adhesive tank; lifting the impregnation cage, and draining adhesive liquid; subjecting the impregnated and stacked branch strips in the impregnation cage to mould compression; naturally curing for 6-12h in a curing chamber, and demoulding to obtain a branch flame-retardant wall board blank material; continuing curing of the branch flame-retardant wall board blank material for 24-48h, and cutting into required sizes; performing surface sanding to obtaina finished tree branch flame-retardant wall board product. A branch integrated wood material processed according to the method has advantages of non-combustibility, corrosion resistance, water resistance, durability and high strength.

Description

technical field [0001] The invention relates to a processing method of a branch flame-retardant wall board. Background technique [0002] Tree felling or pruning will produce a large number of branches. The methods for processing branches in the prior art include processing into chips to produce particleboard or processing into wood fiber boards, and also using them as carbon materials. [0003] Tens of millions of RMB are invested in equipment for producing wood-structured wall board particleboard or fiberboard using tree branches, and toxic and harmful organic adhesives are used in production, such as urea-formaldehyde resin glue and phenolic resin glue. Polyurethane resin glue, etc. contain a large amount of free formaldehyde, and the product market competitiveness is poor, and its use has been restricted in the furniture and architectural decoration industries. [0004] Existing integrated wood wood structure wall panels are generally made of finished wood, sawing logs ...

AI Technical Summary

Problems solved by technology

Polyurethane resin, etc. contain a large amount of free formaldehyde, and the product market competitiveness is poor, and its use has been restricted in the furniture and architectural decoration industries

[0004] Existing integrated wood wood structure wall panels are generally made of finished wood, sawing logs into boards, drying, planing, gluing, integrated pressing and other processes. The price per cubic meter is more than 5,000 yuan, and organic glue is also used as adhesive Adhesives contain a large amount of toxic components such as formaldehyde, and have poor fire and corrosion resistance, which greatly limits the application of the integrated wood

[0005] Some data show that the carbonization temperature of phenolic resin glue after heat curing is low, about 250°C, and it collapses into carbon at 400°C. Therefore, the fireproof performance of large-scale wooden building wall panels made of phenolic resin glue and curing is limited.