Synthesis and Physicochemical Characteristics of Chitosan-Based Polyurethane Flexible Foams

Processes

Jakub Karczewski¹  Agnieszka Piotrowska-Kirschling²  Joanna Brzeska²  Adam Olszewski³  Łukasz Piszczyk³ 

[1] Advanced Materials Center, Gdańsk University of Technology, Narutowicza Street 11-12, 80-223 Gdańsk, Poland;Department of Industrial Product Quality and Chemistry, Faculty of Management and Quality Science, Gdynia Maritime University, Morska Street 81-87, 81-225 Gdynia, Poland;Department of Polymers Technology, Chemical Faculty, Gdańsk University of Technology, Narutowicza Street 11-12, 80-223 Gdańsk, Poland;

关键词: chitosan;    polyurethane;    synthesis;    flexible foams;    physicochemical properties;    oil sorption;   

DOI  :  10.3390/pr9081394

来源: DOAJ

【 摘 要 】

The use of shrimp waste to obtain chitosan (Ch) is an essential issue, considering a circular economy, waste management, and its application to environmentally friendly materials. In this study, northern prawn shells were utilized to obtain Ch, which could then be used for synthesizing chitosan-based polyurethane (PUR+Ch) foams with different Ch concentration. The chemical structure, morphology, hardness, thermal properties, viscoelastic properties, and sorption properties in relation to oil and water of these materials were determined. The results present that the addition of Ch into PUR influences the physicochemical characteristics and properties of the tested materials. PUR+Ch foams with 1–3 wt% Ch had more open cells and were softer than neat PUR. PUR+Ch1 had the best thermal properties. PUR+Ch2 foam with 2 wt% Ch as a whole was characterized as having the highest water sorption. The PUR+Ch1 foam with 1 wt% Ch had the best oil sorption. This paper shows that the modification of PUR by Ch is a very promising solution, and PUR+Ch foams can be applied in the water treatment of oil spills, which can be dangerous to the water environment.

【 授权许可】

Unknown