Simple and efficient approach for recycling fine acrylic-based superabsorbent polymer particles

Recycling fine particles (smaller than 150μm) of acrylic-based superabsorbent polymer is of a great importance due to environmental and economic issues. In this report, fines or dust is agglomerated by soaking in treatment solution containing acetone, water and cross-linker then subsequently curing at 160 ˚C for 2 hours. Different diglycidyl ethers have been employed as cross-linking agents. Cross-linker type and concentration in treatment solution and acetone to water ratio were considered as effective parameters. Free and under load absorbencies, storage modulus and recovery proportion have been measured. Recovery percentages with appropriate properties have been optimized from70% to 93%.

کلیدواژه ها:

Diglycidyl ether ، Recycling ، Superabsorbent ، Cross-linking