At present, the recycling technology of waste foam is being continuously researched and introduced. The use of waste foam to modify and produce building materials deserves more attention and exploration.
(I) Production of styrene by the cracking of waste foams There are three methods for the production of styrene through the cracking of waste foams, namely thermal cracking, catalytic cracking and anaerobic catalytic cracking. Finally, waste foam can be transformed into an important chemical raw material styrene. .
(B) the use of waste foam to prepare a waterproof coating with a suitable modifier, modified waste foam can be prepared at room temperature and quick-drying, long time water resistant emulsion waterproof coating. The process is simple, water viscosity adjustment, construction is also very convenient. The waterproof coating can be used instead of moisture-proof oil in corrugated boxes, and can also be used to waterproof fiberboards.
(III) Production of waste-foam plastics p-nitrobenzoic acid p-nitrobenzoic acid (PNBA) is mainly used for the manufacture of strong fibers, pesticides, dyes, resins, metal surface rust inhibitors, sunscreens, color film couplers and filters. Agents and other products. The waste foam can be obtained by nitration and oxidation. The method has the advantages of easy availability of raw materials, simple process, high added value, and is suitable for promotion in township enterprises.
(I) Production of styrene by the cracking of waste foams There are three methods for the production of styrene through the cracking of waste foams, namely thermal cracking, catalytic cracking and anaerobic catalytic cracking. Finally, waste foam can be transformed into an important chemical raw material styrene. .
(B) the use of waste foam to prepare a waterproof coating with a suitable modifier, modified waste foam can be prepared at room temperature and quick-drying, long time water resistant emulsion waterproof coating. The process is simple, water viscosity adjustment, construction is also very convenient. The waterproof coating can be used instead of moisture-proof oil in corrugated boxes, and can also be used to waterproof fiberboards.
(III) Production of waste-foam plastics p-nitrobenzoic acid p-nitrobenzoic acid (PNBA) is mainly used for the manufacture of strong fibers, pesticides, dyes, resins, metal surface rust inhibitors, sunscreens, color film couplers and filters. Agents and other products. The waste foam can be obtained by nitration and oxidation. The method has the advantages of easy availability of raw materials, simple process, high added value, and is suitable for promotion in township enterprises.
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