Study On Preperation And Performance Of The Plant Fiber Foam Cushioning Material

At present, the requirements for buffer packaging materials are becoming more and more stringent. The buffer packaging design not only needs to consider the protection reliability,structural rationality and cost of the product, but also take into account the environmental protection of the packaging. Paper-based cushioning material is based on plant fiber, recyclable,after treatment can be degraded an ideal environmentally friendly materials. In this paper.combined with domestic and foreign research results, waste paper as the main raw material,beating,washing pulp, filter waste paper fiber, then add adhesives, foaming agents and additives, through the microwave heating foaming method to prepare environmentally friendly non-polluting plants Fiber foam buffer material, and in-depth study of the material’s cushioning performance, microscopic properties and other characteristics. The main research contents are as follows:(1) Determination of the amount of each additive. In this paper, waste fiber was used as the main raw material, the appropriate foaming agent, adhesive and other additives were selected,and the fiber foam was prepared by microwave heating method. The single factor experiment design method was used to determine the reasonable dosage range of foaming time, water,adhesive, foaming agent, glycerol and nucleating agent, and to find out the four factors which had the greatest impact on the material properties.(2) Optimization of material properties. According to the univariate experiment, four factors with the greatest influence on the material properties were selected, and the orthogonal test of 4 factors and 3 levels was developed. Four performance parameters such as expansion ratio, density, residual strain and elastic ratio were taken as the evaluation indexes. (Wet content: 80%): water :rosin: composite foaming agent: citric acid: glycerol, glycerol, glycerol,glycerol, and the like. The results showed that the optimum performance was determined by the difference analysis. = 35: 180: 0.6: 1: 1:2.(3) Microstructure analysis of materials. The morphology of the fibers was observed by scanning electron microscopy (SEM), indicating that the fibers of different sizes were bridged to each other under the action of their hydrogen bonds and adhesives. From the results of electron microscopic analysis of the sample, it can be seen that the material contains many different diameter pore structure, and the hole wall is formed by the fiber bundle.(4) Study on the degradation performance of materials. The degradation performance of the material was analyzed by soil landfill method, and the degradation performance of the material was verified. The environment was not polluted and had some environmental protection.