Fig. 5: Laboratory demonstration of larger-scale co-upcycling waste commercial plastics and fibers into r-PAR and its closed-looping recycling as well as the transparency and flame-retardancy test of the r-PAR film materials. | Nature Communications

Fig. 5: Laboratory demonstration of larger-scale co-upcycling waste commercial plastics and fibers into r-PAR and its closed-looping recycling as well as the transparency and flame-retardancy test of the r-PAR film materials.

From: Upcycling waste commodity polymers into high-performance polyarylate materials with direct utilization of capping agent impurities

Fig. 5

a Digital images for the 10 L high-pressure reactor, commercial waste polymer reactants, and products based on the kilogram-gram scale methanolysis and hydrolyzation experiments. b Digital image of the r-PAR film and the UV-vis spectra of r-PAR film and reference sample U-100 films. c Flame retardancy test results of r-PAR and PC stripes. (t1 + t2: average after flame time). d Schematic reaction pathway for closed-loop recycling of r-PAR.

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