Corrugated cardboard core material

Abstract

The invention discloses a corrugated cardboard core material which includes the raw materials in parts by weight: 50-80 parts of modified natural rubber, 15-30 parts of cis-1,4-polybutadiene rubber, 5-8 parts of nitrile rubber, 5-15 parts of a thermoplastic elastomer SIS, 5-8 parts of ethoxylated alkyl phenol ammonium sulfate, 3-5 parts of rosin based resin acid, 2-5 parts of polyether polyol, 12-20 parts of carbon black, 8-15 parts of C9 petroleum resin, 5-8 parts of tricaprate, 5-10 parts of polydiphenylmethane diisocyanate, 2-5 parts of carboxymethyl chitosan, 2-5 parts of zinc oxide, 2-6 parts of sodium based bentonite, 2-5 parts of bauxite, 1-2 parts of sepiolite fibers, 5-8 parts of a sericin solution, 3-5 parts of epoxidized soybean oil, 2-8 parts of stearic acid, 4-8 parts of a plasticizer, 2-5 parts of an accelerant, 6-12 parts of a softener, 2-5 parts of a toughening agent, and 10-15 parts of a vulcanizing agent. The core material adopts reasonable raw material and proportion, and all the components are complementary with each other and have synergistic effect, so that the prepared core material has the advantages of strong anti-aging property, high temperature resistanceand long service life.

Description

technical field [0001] The invention relates to the technical field of packaging materials, in particular to a corrugated cardboard core material. Background technique [0002] The use of corrugated cardboard can be traced back to the end of the 18th century. In the 19th century, people discovered that corrugated cardboard is not only light in weight but strong in performance, but also cheaper than ordinary materials, and has a simple manufacturing process and a wider range of uses. Not only that, corrugated cardboard is not only a recyclable and environmentally friendly material composed of wood fibers that can be decomposed by natural functions, but also can be reused without affecting its performance. Therefore, it is favored by people. [0003] Corrugated cardboard is a multi-layer adhesive body, which consists of at least one layer of corrugated core paper interlayer and one layer of cardboard. It has high mechanical strength and can withstand bumps and falls during ...

AI Technical Summary

Problems solved by technology

[0005] The existing corrugated cardboard has poor waterproof performance. When it encounters water, the bonding strength will decrease, and the moisture will penetrate the face paper, corrugated paper and inner paper, which will further cause the corrugated box to absorb water and become soft, and the edges will become degummed and warped, and deformed. Occurs, resulting in deterioration and damage of internal products, so there is an urgent need to develop a corrugated cardboard core material to meet the current waterproof requirements for corrugated cardboard

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