Republic of Korea
Fabrication and Performance of Alginate Based Water Capsules as an Eco-friendly Means of Agricultural Water Supply
This study is focused on developing a water capsule to tackle drought, decreasing the water wasted from agriculture. By burying small capsules that steadily eject water near the roots, the immense amount of water that evaporates after being sprayed on crops can be saved. This study first discusses the method of fabricating sphere-shaped alginate capsules, involving ice balls. Alginate is a polymer that can form membranes by cross-linking with divalent cations. Then it determines the ideal composition and concentration of the alginate membrane using Young's modulus comparisons to measure the stiffness. Experiments were conducted to measure the discharged water over time for each type of capsule.