A kind of environment-friendly marine bio-based flame-retardant paper and preparation method thereof

Abstract

The invention discloses an environmentally-friendly marine organism base flame retardation paper and a production method thereof, and belongs to the technical field of environmentally-friendly flame retardation materials. The method comprises the following steps: selecting algal chopped fibers with the average length of 3-6mm as paper pulp fibers, and mixing the alga chopped fibers with a wood pulp, adding a dispersant to the obtained mixed pulp in order to realize stability and dispersion; and carrying out papermaking on the dispersed mixed pulp by using a papermaking machine in order to make the flame retardation paper. The paper with flame retardation performance and durability is made through a simple production process with the algal chopped fibers as the paper pulp fibers without adding any flame retardant, and metal ions in the algal chopped fibers have a catalytic cracking effect, so generation of combustible gases is reduced, and the limit oxygen index of the flame retardation paper obtained through the method is greater than 30%. The environmentally-friendly marine organism base flame retardation paper has the advantages of simple process flow, environmental protection, and lasting and stable effect, and solves the problem of introduction of toxic flame retardants harmful to environment in the paper making process.

Description

technical field [0001] The invention belongs to the technical field of preparation of environment-friendly flame-retardant materials, and in particular relates to an environment-friendly marine bio-based flame-retardant paper and a preparation method thereof. Background technique [0002] The main components of traditional paper materials are cellulose, hemicellulose and a small amount of lignin. Paper is composed of plant fibers interwoven after papermaking. The flammability of plant fibers directly determines the combustion performance of paper products. Traditional paper The main components in the material are flammable components, and the combustion oxygen index of paper is usually between 15% and 20%, so the use of paper products is often accompanied by the hidden danger of fire. Huge economic losses are caused by its flammability all over the world every year. Therefore, the flame retardancy of paper materials has become an important performance indicator in its applic...

AI Technical Summary

Problems solved by technology

When boron compounds are heated, non-combustible substances are produced and coated on the surface of paper, which isolates the contact between paper and air and promotes carbonization; in addition, the crystal water contained in boron compounds is decomposed by heat, which enhances the flame retardant effect to a certain extent; currently, boron Compounds as flame retardants are still dominated by inorganic borates and boric acids, and organic boron flame retardants have limited their use to a certain extent due to factors such as their poor stability and high price;

[0008] (5) Nitrogen-based flame retardant used for paper flame retardant and mainly melamine and its derivatives, dicyandiamide salt, etc., they mainly use dilution effect and isolation effect to flame retardant paper and paper products; as CN104099810A discloses a The environment-friendly flame-retardant paper and its preparation method are prepared by disintegrating plant fiber raw materials to obtain slurry, and then adding different proportions of flame retardants to the slurry, among which melamine cyanuric acid is selected as the flame retardant Salt, the limiting oxygen index of the prepared flame-retardant paper is between 18% and 23%. The flame retardant added in this patent belongs to nitrogen-based flame retardants. Although nitrogen-based flame retardants have low toxicity, no corrosion, and are Heat and UV stable, cheap, etc., but its flame retardant effect is poor when used alone

[0009] The above five flame retardants have their own advantages and disadvantages. In general, the current flame retardants for paper flame retardants inevitably have disadvantages that affect their use.