The use of polyurethanes and, therefore, the quantity its scrap are increasing. Considering thermoset characteristic most polyurethanes, circular recycling method is by means chemical depolymerization, for which glycolysis finding way into industry. main goal polyurethane to recover polyols used, but only limited attempts were made toward recovering aromatic dicarbamate residues and derivates f...

Polyurethane sheet is a pure white, soft, and flexible synthetic sponge with a mechanical strength and abrasion resistance equivalent or even superior to other sponge materials. Our study indicates that the blood absorption power of the polyurethane sheet is equivalent to that of the cotton gauze even after repeated use, and it has the potential to decrease the total amount of sponge usage. Fur...

During the last decades, replacement of traditionally petro-based raw materials by eco-friendly substances in polyurethane production has become a great challenge. The synthesis polyurethanes is mainly conducted means selective reaction between active isocyanate and hydroxyl groups, yielding characteristic segmented chemical structure. In this study, traditional solvent-based polycondensation f...

The purpose of the study is to apply a previously developed model for predicting abrasive wear products made thermoplastic polyurethanes materials based on plasticized polyvinyl chloride. Confirmation validity proposed approach assess impact various factors weight reduction chloride (PVC). Comparative analysis polyurethane and PVC.

      In order to prepare polyurethane elastomers with acceptable physical properties and good biocompatibility, novel polyurethane networks were synthesized via curing reaction of epoxy-terminated polyurethane prepolymers (EUPs) with hexamethylene diamine. EUPs were prepared from reaction of glycidol with NCO-terminated polyurethanes (ITPs). ITPs were also synthesized from reaction of one equi...