In this section, you can access to the latest technical information related to the FUTURE project topic.

Eco-friendly superabsorbent composites based on calcined semicoke and polydimethylourea phosphate: Synthesis, swelling behavior, degradability and their impact on cabbage growth

In this work, novel eco-friendly superabsorbent composites of chitosan-grafted-polyacrylic acid/polydimethylourea phosphate/calcined semicoke (CS-g-PAA/PDUP/CSC) with the semi-interpenetrating network (semi-IPN) were developed via a convenient redox polymerization at room temperature. The redox polymerization was triggered by the calcined oil shale semicoke (CSC) under air atmosphere, in which the iron-compounds of CSC and Na2S2O3 were employed as oxidizing agent and reducing agent, respectively. The CS-g-PAA/PDUP/CSC composites prepared at the optimal conditions exhibited the maximum water absorption capacity of 412.89 and 51.30?g/g in deionized water and 0.9?wt% NaCl solution within 60?min, respectively. The excellent water absorption and retention performance were related to the introduction of CSC, which could be served as an inorganic component weakening the hydrogen-bond interaction between the functional groups in the polymer matrix and the semi-IPN. The superabsorbent composites also showed the favorable degradability, and 42.35?% of superabsorbent was degraded at 90 days. Interestingly, the nitrogen element provided by urea and chitosan could be released during degradation and directly absorbed by the plant to promote the growth. Integration of the above performance, the prepared composites may be used for better water resources management in agriculture taken into account of the corresponding environmental benefits.

» Author: Yan Liu, Yongfeng Zhu, Yongsheng Wang, Bin Mu, Xicun Wang, Aiqin Wang

» More Information

« Go to Technological Watch



AIMPLAS Instituto Tecnológico del Plástico

C/ Gustave Eiffel, 4
(València Parc Tecnològic) - 46980
PATERNA (Valencia) - SPAIN

PHONE

(+34) 96 136 60 40

EMAIL

Project Management department - Sustainability and Industrial Recovery
life-future-project@aimplas.es