Method for manufacturing elastic foam by using reclaimed wastes as materials

Abstract

The invention discloses a method for manufacturing elastic foam by using reclaimed wastes as materials, which comprises the following steps: reclaiming, namely reclaiming metal wastes containing rubber, plastic, fiber, metal and the like; crushing, namely crushing the wastes into scraps; layering and separating, namely forming a layering and separating state of the waste scraps of different components according to a specific gravity difference; mixing raw materials, namely selecting the waste scraps of predetermined components and adding the waste scraps into the raw materials such as elastic material, foaming agent and the like, and mixing the whole; pressing, namely pressing the mixed raw materials into a sheet foaming material; and foaming and molding, namely foaming and molding the sheet foaming material into the elastic foam by adding sulfur. The reclaimed and treated waste scraps do not need to be fully separated into single materials and can be added into the foaming material as the elastic foam raw material, so the wastes can be fully reclaimed and reutilized, the rubbish amount is reduced, and the reclaiming and treating cost is effectively reduced; and the waste scraps and the elastic material are adhered together by utilizing the pressure of gas produced in the chemical change of the foaming agent, so the adhesive is saved, and the environment is protected.

Description

technical field [0001] The invention relates to an elastic pad, more specifically to an elastic foam method using recycled waste as material. Background technique [0002] In order to save the natural resources of the earth, many advanced countries in the world have established resource recycling systems. Various institutions such as ordinary homes, schools, and public agencies are equipped with recycling equipment for garbage classification to effectively use the recycled waste for recycling. Made into everyday products such as recycled paper, fuel, etc. [0003] Generally speaking, waste from single-material products is easier to recycle, process and reuse, such as PET bottles, glassware, plastic, metal products, and paper, while waste from composite materials needs to be recycled and reused through various processes. In this way, the constituent materials can be separated to obtain reusable materials. Since the recycling process of composite materials often requires the...

AI Technical Summary

Problems solved by technology

Since the recycling process of composite materials often requires the use of various additives or solvents to separate the constituent materials (especially in the case of recycling high-priced materials), it produces more harmful and environmentally friendly waste, and the mixed materials of metal and non-metal It is still possible to use the difference in magnetism or specific gravity to separate the materials. However, materials with a small difference in specific gravity can only be separated manually, which is not only time-consuming but also a waste of manpower, and it is completely uneconomical.

[0004] Secondly, due to the demand for product diversity, elastic foams with a single material and no appearance and pattern decoration have gradually failed to meet market demand. Therefore, the foam pads of elastic foams (such as insoles, sports pads, etc.) A surface material with different physical properties (such as a plastic film or cloth) is often attached to the surface. However, the known elastic foam with a surface material on the surface is usually bonded with an adhesive or an adhesive between the surface material and the foam pad. , this production method will lead to air or water pollution, causing environmental problems

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