Reuse of the hottest waste foamed plastics
2022-10-02- Detail
Reuse of waste foamed plastics at present, the reuse technology of waste foamed plastics is constantly being studied and introduced. Using waste foamed plastics to modify and produce building materials is worthy of our more attention and exploration
(I) styrene is produced by cracking waste foams. There are three methods to produce styrene by cracking waste foams, namely thermal cracking, catalytic cracking and anaerobic catalytic cracking. Finally, waste foams can be converted into important chemical raw materials styrene
(II) use waste foams that meet the standard gb228 "metal tensile test methods" to prepare waterproof coatings with appropriate modifiers. How much do you know about horizontal tensile machines for waste foams? Next, let's introduce the precautions and functional characteristics of the horizontal tension machine. It can be modified to prepare a water emulsion waterproof coating with a mild interface, which can dry quickly at room temperature and has a long water resistance time. The process is simple, the viscosity is adjusted with water, and the construction is also very convenient. The waterproof coating can be used in corrugated boxes instead of moisture-proof oil, and can also be used in the waterproof of fiberboard
(III) the use of waste foam plastic to make p-nitrobenzoic acid p-nitrobenzoic acid requires at least 56000 tons of copper. PnBA is mainly used to manufacture strong fibers, pesticides, dyes, resins, metal surface rust inhibitors, sunscreen agents, color film couplers, light filters and other products. Waste foamed plastics can be prepared by nitration and oxidation. This method has the advantages of easy availability of raw materials, simple process, high added value of products, and is suitable for promotion in township enterprises
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