| Production and Characterization of Urea-Formaldehyde Nanocapsules Containing Oil |
| Paper ID : 1673-UFGNSM-FULL |
| Authors: |
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Elham Katouei Zadeh *1, S.M. Zebarjad2, Kamal Janghorban2 1Zand street, Shiraz University, Materials Engineering department 2Shiraz University |
| Abstract: |
| Nowadays capsules loaded with a variety of functional materials have been used for different application fields such as biotechnology, preservation of flavors, sustainable drug release, electro-rheology fluids, dyes, and fire retardant powders. Accordingly, in the present study, nanocapsules containing Linseed oil (LO) were synthesized via in situ polymerization method using Urea-formaldehyde (UF) as a wall material. After the preparation of nanocapsules, morphology and particle size of the formed capsules were considered to investigate the effects of synthesis conditions. The capsules were characterized using scanning electron microscopy (SEM), particle size analyzer (PSA), X-ray diffraction (XRD), Brunauer–Emmett–Teller (BET) and Thermogravimetric analysis (TGA). As revealed by scanning electron microscopy analysis, the morphology and formation of the synthesized capsules are very dependent to synthesis condition. According to SEM and PSA analysis, utilizing sonication during synthesis also has the effect of homogenizing the solution and obtaining finer nanocapsules in the range of 50–100 nm. The weight loss in TGA analysis at temperature between 200°C and 300°C is mainly due to the decomposition of the UF shell wall. The residue undergoes extensive fragmentation near 400°C. This implies that the prepared capsules have a good thermal stability. This property plays an important role in their application. |
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| Status : Paper Accepted (Poster Presentation) |
