Process for producing silicon rubber by using waste silicon rubber materials

Abstract

The invention relates to a process for producing silicon rubber by using waste silicon rubber materials, which comprises the following steps: preparing dimethylsilane by using the waste silicon rubbermaterials through splitting, base-catalysed rearrangement, and discoloration and filtration of active carbon; and then placing the dimethylsilane, end-capping agent and tetramethylammonium hydroxideinto a kettle to prepare the silicon rubber. The process for producing silicon rubber by using waste silicon rubber materials comprises two additional process flows: 1) refining silicon dioxide from chemical waste residues generated in the process of preparing the silicon dioxide; and 2) finely preparing baking-free bricks by further utilizing the waste residues generated in the process of preparing the silicon dioxide, and adding coal ash, quartz sands, cement and rock sands into the waste residues. The process for producing silicon rubber by using waste silicon rubber materials prepares thesilicon dioxide and the baking-free bricks by using the waste silicon rubber materials, thereby having environmental protection value.

Description

technical field [0001] The invention relates to a process for producing silicone rubber by using waste silicone rubber materials, in particular to adding a process flow in the process of producing silicone rubber so as to improve the utilization rate of waste slag while keeping it from affecting the environment and complying with environmental protection requirements while improving economic benefits idea. Background technique [0002] Using domestic waste such as waste mobile phones, remote controls, keyboards, cured glass glue, and discarded medical silicone rubber as the main raw materials, the silicone rubber and silicon rubber. However, according to the above process steps, when producing silicone rubber and silicon rubber, a large amount of chemical wastes containing silicides will be produced. Because these waste residues contain a large amount of polymer materials, they are difficult to degrade in the natural environment. If they are not handled properly, they will...

AI Technical Summary

Problems solved by technology

However, according to the above process steps, when producing silicone rubber and silicone rubber, a large amount of chemical waste containing silicide will be produced.