Circular chemical technology is implemented, achieving closed-loop regeneration and mass production of waste silicone resin.
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Circular chemical technology is implemented, achieving closed-loop regeneration and mass production of waste silicone resin.
1.The industry's pain points are becoming more prominent, and the problem of waste silicon resin recycling urgently needs to be solved.
Traditional silicon resins are thermosetting polymers that cannot be melted and remolded after cross-linking. Most of the production scraps, waste coatings, and discarded packaging materials can only be incinerated or landfilled, which not only generates carbon emissions but also wastes the core raw materials of silicone. As the application scale of silicon resins continues to expand, the annual volume of industrial solid waste keeps increasing, and the cost of environmental disposal also rises year by year. Developing a recycling and regeneration process has become an urgent need for industrial transformation.
2. Breakthrough in catalytic depolymerization process, recovering basic monomers from waste resins
Our self-developed low-temperature catalytic cracking system does not require high-temperature and corrosive additives. It can decompose various waste silicone resins into high-purity siloxane monomers. The entire process is completed in a medium-temperature sealed reactor, with no toxic by-products being released throughout the process. The decomposition conversion rate can reach over 92%. The purity of the regenerated monomers matches the standards of new raw materials, and they can be directly recycled back to the production line for the synthesis of new silicone resins.
3. The purification production line has been established, and the performance of the recycled resin is comparable to that of the original material.
An integrated separation, filtration, and distillation supporting facility has been constructed to remove cracking impurities and inorganic fillers, eliminating the defects such as yellowing and reduced temperature resistance of the recycled resin. After testing, the weather resistance, insulation, bonding, and high-temperature resistance indicators of the recycled silicone resin show no significant difference from those of the brand-new resin, and it can be used in most general scenarios such as industrial anti-corrosion, electronic insulation, and architectural coatings.
4. Significant carbon reduction benefits, helping to reduce carbon emissions and carbon dioxide emissions throughout the entire value chain
For every ton of waste silicone resin recycled, nearly 3 tons of carbon dioxide emissions can be reduced, while also reducing the consumption of raw materials. The comprehensive production cost of the recycled products has decreased by 20%, forming a complete closed loop of "production - use - recycling - regeneration". This recycling scheme is suitable for various silicone resin production lines and provides a replicable and implementable path for the green and low-carbon transformation of the organic silicon industry.