Production process and device of degradable sponge product

Abstract

The invention discloses a production process and device of a degradable sponge product. The sponge product is prepared by taking wood meal, bamboo meal and three kinds of agriculture and forestry residues as initial raw materials through pretreatment, dissolution, pore forming, forming, freezing point aging, regeneration in a sulfuric acid coagulating bath, flushing to be neutral and drying, and pore forming comprises the steps of adding an auxiliary agent and a pore forming agent, stirring at a high speed, mixing and then forming pores. A forming device is a three-face top forming device, first limiting blocks movably connected with supporting plates and second limiting blocks movably connected with a cover plate are arranged in a containing space, and the first limiting blocks, the second limiting blocks and the two supporting plates perpendicularly connected with the two second limiting blocks are matched with one another to form the containing cavity for containing sponge to be formed. According to the process and the device, hemicellulose dissolution limitation in the reaction process is reduced, a low-cost sponge production process is provided, holes formed in the interior and the surface of the sponge are uniform and consistent in size and density, and the sponge product is stable in performance, low in production cost and free of pollution to the environment.

Description

technical field [0001] The invention relates to the technical field of sponge production and processing, in particular to a production process and device for degradable sponge products. Background technique [0002] Sponge is a general term for foam, and various sponge products with different properties can be produced according to the different materials used. Traditional sponge products are mainly synthetic resin sponges made of polyurethane and similar materials. The chemical name of the sponge is polyurethane foam material. kind. [0003] PVA collodion, especially a kind of collodion that can absorb water, can evaporate water automatically, and it is easy to break after being exposed to the sun. [0004] Sponge and collodion are made of high-molecular chemical materials, so the product itself has certain environmental pollution and cannot be regenerated. Many sponge products are in contact with human skin, which is easy to cause irritation to human skin. These sponges ...

AI Technical Summary

Problems solved by technology

[0009] At present, adding iron parts and plastic parts to the molding device is generally in the upward direction of the molding, and the direction of the molding is relatively single, only in one direction, resulting in a limited number of matching installation methods for iron parts and plastic parts. Compression causes the spongy body to have a single air outlet direction and a single force direction, resulting in uneven pore size and density, and low quality

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