Preparation method of corrugated paper with flame-retardant effect

Abstract

The invention discloses a preparation method of corrugated paper with a flame-retardant effect, and relates to the technical field of corrugated boards. The corrugated paper is obtained by compoundingthree surface paper plates and two corrugated plates. The corrugated paper prepared by the method has good edge pressure strength; and a certain amount of melamine cyanurate is added, so that the thermal stability and charring performance of the flame-retardant corrugated paper at high temperature can be further improved. The melamine cyanurate and the magnesium hydroxide have a synergistic effect, so that a compact expanded carbon layer can be formed on the surface, and the effects of heat insulation and oxygen insulation are effectively exerted, thereby enhancing the flame retardancy of thecorrugated paper.

Description

technical field [0001] The invention belongs to the technical field of corrugated paper, in particular to a method for preparing corrugated paper with flame-retardant effect. Background technique [0002] Corrugated box is a kind of commonly used transport packaging. The corrugated cardboard used to make cartons is mainly composed of corrugated paper, face value and inner paper. Generally, 2 or 3 layers of corrugated paper are separated by core paper in the middle. After gluing and forming, a common 5-layer or 7-layer board. Because corrugated boxes are used as transport packaging, they require high water resistance and puncture resistance. Corrugated paper is usually made of broad-leaved semi-fiber wood pulp or wheat straw pulp, and its quantitative is generally low. [0003] The prior art discloses "Application Publication No. CN 104404816 A, and the invention discloses a method for preparing moisture-proof corrugated paper, comprising the following steps: weighing wood ...

AI Technical Summary

Problems solved by technology

[0003] The prior art discloses "Application Publication No. CN 104404816 A, and the invention discloses a method for preparing moisture-proof corrugated paper, comprising the following steps: weighing wood pulp and waste paper pulp respectively, mixing, removing impurities, adding water to soak the pulp, breaking up , to obtain raw pulp, add a moisture-proof agent, make paper, preheat, sizing, and get corrugated paper through a single-sided machine, paste a layer of wax oil paper on the outermost layer of the corrugated paper, and dry; wherein the moisture-proof agent consists of the following parts by weight Prepared from raw materials: 25-30 parts of tapioca starch, 15-20 parts of styrene-acrylic acid ester, 13-18 parts of crotonate, 5-8 parts of paraffin wax, 2-2 parts of sodium dodecylbenzenesulfonate 5 parts, 1 to 4 parts of silicon dioxide; the present invention has a wide range of sources of raw materials and low production costs. A moisture-proof agent is added during the papermaking process, and waxed paper is pasted on the outer layer of the corrugated paper, which greatly improves the quality of the corrugated paper. Waterproof and moisture-proof performance", however, in some high-temperature environments, corrugated cardboard is easy to transfer the absorbed heat to the packaged items, which indirectly reduces the quality of the items; when the corrugated cardboard directly encounters an open flame, it is easy to The occurrence of burning phenomenon directly destroys the packaged items, which will not only cause serious economic losses, but also pose a very large threat to personal safety