SINTESIS, KARAKTERISASI, DAN UJI KINERJA BIOHIDROGEL BERBAHAN DASAR EGN-PVA DENGAN CROSSLINKER GLUTARALDEHIDA

    Chotimah, Nurul (2013) SINTESIS, KARAKTERISASI, DAN UJI KINERJA BIOHIDROGEL BERBAHAN DASAR EGN-PVA DENGAN CROSSLINKER GLUTARALDEHIDA. S1 thesis, Universitas Pendidikan Indonesia.

    Abstract

    Telah dilakukan penelitian tentang sintesis, karakterisasi, dan uji kinerja biohidrogel berbahan dasar EGN-PVA dengan crosslinker glutaraldehida. Penelitian ini bertujuan untuk mengetahui preparasi ekstrak GN (EGN), komposisi optimum PVA-EGN-Crosslink GA pada sintesis biohidrogel CRF, dan karakteristik dan kinerja biohidrogel hasil sintesis sebagai CRF. EGN diperoleh dari hasil ekstraksi simplisia GN kering dengan metode maserasi menggunakan pelarut metanol 70 %. Kondisi optimum sintesis biohidrogel diperoleh pada rasio komposisi PVA:EGN:GA = 1:1:1, dimana kemampuan swelling (%SR) dan waktu retensi (%WR) air biohidrogel mencapai 440% dan 25 hari, secara berturut-turut. Hasil karakterisasi menunjukkan bahwa biohidrogel yang disintesis memiliki struktur berpori. Penyisipan nutrien meningkatkan kristalinitas biohidrogel, dimana %SR dan %WR dari biohidrogel meningkat secara linier terhadap kristalinitas. Hal ini menunjukkan bahwa biohidrogel yang disintesis berpotensi sebagai agen control released nutrient (CRF). Biohidrogel bersifat biodegradable dan juga dapat dijadikan sebagai media tumbuh apabila didukung oleh penggunaan media lain seperti tanah atau pasir.
    Kata kunci : Hidrogel, EGN, controlled release fertilizer, crosslinker GA, PVA. 
    Has done research on the synthesis, characterization, and performance test of biohydrogel based EGN - PVA with glutaraldehyde as a crosslinker. This study aims to determine extract preparation GN (EGN), optimum composition of PVA-EGN-Crosslink GA on biohydrogel CRF synthesis, characteristics and also performance of biohydrogel synthesized as CRF. EGN is obtained from the extraction of dried GN by maceration method using methanol 70%. The optimum conditions of biohydrogel synthesized, obtained on the composition ratio of PVA:EGN:GA = 1:1:1, where the ability of swelling (%SR) and retention time (%WR) biohydrogel are 440% and 25 days, respectively. The characterization results showed that the synthesized biohydrogel has a porous structure. Insertion of nutrients increases the crystallinity biohidrogel, where SR% and WR% of biohidrogel increased linearly from the crystallinity. This shows that the synthesized biohidrogel is potential to be an agents of control released fertilizer (CRF). Biohydrogel is biodegradable and can also be used as a growing medium if it is supported by the use of other media such as soil or sand.
    Keywords : Hydrogels , EGN , controlled release fertilizer , crosslinker GA , PVA

    [thumbnail of S_KIM_0902305_TITLE.pdf]
    Preview
    Text
    S_KIM_0902305_TITLE.pdf

    Download (263kB) | Preview
    [thumbnail of S_KIM_0902305_ABSTRACT.pdf]
    Preview
    Text
    S_KIM_0902305_ABSTRACT.pdf

    Download (180kB) | Preview
    [thumbnail of S_KIM_0902305_TABLE OF CONTENT.pdf]
    Preview
    Text
    S_KIM_0902305_TABLE OF CONTENT.pdf

    Download (351kB) | Preview
    [thumbnail of S_KIM_0902305_CHAPTER1.pdf]
    Preview
    Text
    S_KIM_0902305_CHAPTER1.pdf

    Download (194kB) | Preview
    [thumbnail of S_KIM_0902305_CHAPTER2.pdf] Text
    S_KIM_0902305_CHAPTER2.pdf
    Restricted to Staf Perpustakaan

    Download (414kB)
    [thumbnail of S_KIM_0902305_CHAPTER3.pdf]
    Preview
    Text
    S_KIM_0902305_CHAPTER3.pdf

    Download (673kB) | Preview
    [thumbnail of S_KIM_0902305_CHAPTER4.pdf] Text
    S_KIM_0902305_CHAPTER4.pdf
    Restricted to Staf Perpustakaan

    Download (1MB)
    [thumbnail of S_KIM_0902305_CHAPTER5.pdf]
    Preview
    Text
    S_KIM_0902305_CHAPTER5.pdf

    Download (182kB) | Preview
    [thumbnail of S_KIM_0902305_BIBLIOGRAPHY.pdf]
    Preview
    Text
    S_KIM_0902305_BIBLIOGRAPHY.pdf

    Download (319kB) | Preview
    [thumbnail of S_KIM_0902305_APPENDIX.pdf] Text
    S_KIM_0902305_APPENDIX.pdf
    Restricted to Staf Perpustakaan

    Download (839kB)
    Item Type: Thesis (S1)
    Subjects: Universitas Pendidikan Indonesia > Fakultas Pendidikan Matematika dan Ilmu Pengetahuan Alam > Program Studi Kimia - S1 > Program Studi Pendidikan Kimia
    Divisions: Fakultas Pendidikan Matematika dan Ilmu Pengetahuan Alam > Program Studi Kimia - S1 > Program Studi Pendidikan Kimia
    Depositing User: DAM STAF Editor
    Date Deposited: 05 Dec 2013 02:46
    Last Modified: 05 Dec 2013 02:46
    URI: http://repository.upi.edu/id/eprint/3741

    Actions (login required)

    View Item View Item