通过生物溶剂溶解法分离弹性纤维

The project aims to develop a biosolvent dissolution method for removing spandex from the following types of woven/knitted blends:

PET, Spandex (less or equal to 25%)
Nylon, Spandex ( less or equal to 25%) 
Cotton, Spandex (less or equal to 25%)

Optimize the conditions of parameters for achieving a target separation efficiency of spandex ≥ 95%. 
Characterize the molecular weight of the PET, nylon and cotton recovered.
Investigate the recovery method of the biosolvent, e.g. vacuum evaporation. 
Estimate the operating cost and perform sustainability impact assessment.