Degradable buffer material

A buffer material and nanomaterial technology, applied in the field of packaging materials, can solve the problems of high consumption of natural resources and energy, increased demand for wood, and high manufacturing costs, reducing manufacturing process steps, increasing the number of cycles, and mechanical strength. Good results

Pending Publication Date: 2021-03-26
TIANJIN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although with the deepening awareness of environmental protection and resource utilization, and the penetration of green packaging concepts, waste paper has become one of the main raw materials for the production of corrugated paper, making the proportion of recycled fibers in corrugated medium paper generally higher than 30%, but most core paper Pulp is still log pulp, which increases the demand for wood, and most of the corrugated boxes are disposable, resulting in substantial consumption of natural resources and energy. From the perspective of packaging life cycle assessment, Corrugated cardboard is not a green packaging material
[0003] To solve the problem of environmental protection, it is necessary to improve the defects of corrugated cardboard materials. It has been reported that a kind of composite of textile materials and natural polymer materials is used to prepare corrugated medium paper: the straw is crushed and pulped and sprayed on the surface of the textile to form a straw layer. Finally, the straw layer is pressed with a grooved roller to make it have a rack-like structure to form a core paper, which is then combined with the face paper to form a corrugated cardboard, but the process is more complicated and the manufacturing cost is higher

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The material of the surface material is kraft paper, the material of the core material is polymaleic anhydride, the angle between the corrugations in two directions of the two-way superimposed corrugated core material is 90 degrees, and the cross-sectional shape of the corrugations in the two directions is a hyperbola.

Embodiment 2

[0023] The material of the surface material is white cardboard, the material of the core material is polyethylene glycol, and the inside of the material of the core material is filled with nano-materials, and the nano-materials are nano-zinc oxide. The angle between corrugations in two directions of two-way superimposed corrugated core material is 45 degrees, and the cross-sectional shape of corrugations in two directions is a parabola.

Embodiment 3

[0025] The material of the surface material is plastic, the material of the core material is polyacrylamide, the material of the core material is filled with nanomaterials, the surface of the core material is coated with nanomaterials, and the nanomaterials are nano silicon carbide. The angle between corrugations in two directions of two-way superimposed corrugated core material is 10 degrees, and the cross-sectional shape of corrugated in two directions is a sinusoidal function curve.

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Abstract

The invention discloses a degradable buffer material. The degradable buffer material is composed of a core material and a surface material, the core material is in the shape of a two-way superimposedcorrugation, the corrugation included angle of the two directions of the two-way superimposed corrugation core material is 1-90 degrees, and the corrugation cross sections in the two directions are inthe shape of a function curve or a combination of partial function curves. According to the invention, a high polymer material is molded into a bidirectional corrugated structure through a mold, is used as a core material to directly replace a corrugated board core paper material, and then is combined with a surface material to form the degradable buffer material with the corrugated structure, sothat the consumption of paper pulp is reduced, the manufacturing process steps are reduced, the recycling rate can be increased, and the problem that the performance of the corrugated board is reduced due to cyclic utilization is reduced.

Description

technical field [0001] The invention belongs to the technical field of packaging materials, in particular to a degradable cushioning material. Background technique [0002] With the rapid development of electronic commerce and the express delivery industry, packaging waste cartons have become an important part of domestic waste, and most of the transport packaging cartons are made of corrugated cardboard with light weight, low price and high bending strength. The most widely used corrugated cardboard is composed of surface paper, corrugated core and inner paper. The side of the corrugated core is V-shaped, U-shaped or UV-shaped corrugated. Although with the deepening awareness of environmental protection and resource utilization, and the penetration of green packaging concepts, waste paper has become one of the main raw materials for the production of corrugated paper, making the proportion of recycled fibers in corrugated medium paper generally higher than 30%, but most cor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B3/28B32B27/28B32B27/06B32B27/10B32B29/06B32B3/08B32B27/00B32B27/34B32B33/00B32B27/30
CPCB32B3/08B32B3/28B32B27/00B32B27/08B32B27/10B32B27/28B32B27/30B32B27/34B32B29/06B32B33/00B32B2307/56B32B2307/712B32B2307/716B32B2553/023
Inventor 吕幼军徐耀宗姚春光
Owner TIANJIN UNIV OF SCI & TECH
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