Pembuatan Biokomposit Cellulose Acetate/Poly(L-Lactic Acid) Bead:Pengaruh Konsentrasi Larutan dan Ratio Berat Cellulose Acetate/Poly(LLactic Acid

Wicaksono, Gilmar and Utama, Fiky Prima (2017) Pembuatan Biokomposit Cellulose Acetate/Poly(L-Lactic Acid) Bead:Pengaruh Konsentrasi Larutan dan Ratio Berat Cellulose Acetate/Poly(LLactic Acid. Undergraduate thesis, Intitut Teknologi Sepuluh Nopember.

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Abstract

Cellulose Acetate (CA) merupakan turunan natural polimer selulosa yang mempunyai banyak kelebihan diantaranya mempunyai stabilitas yang baik terhadap suhu dan biokompabiliti yang baik sehingga CA dapat diaplikasikan dalam bidang biomedik dan lingkungan. Sedangkan Poly(L-Lactid Acid) (PLLA) merupakan biodegradable polimer yang mempunyai sifat biokompabilitas dan biodegradabilitas yang baik namun masih mempunyai kekurangan yang dapat membatasi penggunaannya,misalnya dalam bidang biomedik, lingkungan, tekstil. Dengan mempertimbangkan kelebihan masing-masing komponen,pencampuran antara CA dan PLLA diharapkan dapat membentuk biokomposit yang mempunyai sifat unggul dan kinerja yang baik pada pengaplikasiannya. Penelitian ini dilakukan untuk mempelajari pengaruh perubahan perbandingan berat dan konsentrasi larutan antara CA dan PLLA terhadap properti dan karakteristik biokomposit CA/PLLA, serta properti dan kinerja adsorpsi dari CA/PLLA beads, dan mempelajari pengaruh perubahan waktu larutan metilen biru terhadap kinerja adsorpsidari CA/PLLA beads. Metode penelitian yang akan digunakan dalam penelitian ini, dimulai dari CA dan PLLA dilarutkanii dalam pelarut yang sesuai yang kemudian keduanya dicampur dan diaduk hingga menjadi larutan homogen, larutan homogen CA/PPLA disuntikkan kedalam bath koagulasi untuk membentuk beads yang kemudian dikeringkan. Sedangkan untuk uji yang harus dilakukan yaitu analisa morphology yaitu SEM, uji thermal stability CA/PLLA beads menggunakan uji TGA, uji DSC yang menganalisa tentang thermal properties bead dan terakhir adalah uji adsorpsi dengan spektofotometri UV-VIS. Dari penelitian yang telah dilakukan didapatkan hasil untuk CA/PLLA beads bahwa semakin banyak PLLA yang ditambahkan akan semakin kecil diameter beads, fenomena ini terjadi pada kedua variable konsentrasi larutan yaitu 10% dan 15%. Dan untuk uji TGA didapatkan hasil semakin banyak PLLA yang ditambahkan akan semakin rendah suhu yang diperlukan untuk terdegradasi. Dengan waktu pengamatan 36 jam perendaman beads didapatkan persen removal biokomposit CA/PLLA 60/40 dengan variable 10% wt sebesar 45,80 % dan variable 15% wt sebesar 43,68% ================================================================= Cellulose Acetate (CA) is a natural derivative of cellulose polymers which have many advantages such as having good stablity to temperature and good biocompatibility, so that CA can be applied into the biomedical and environmental issues. Poly (LLactid Acid) (PLLA) is a biodegradable polymer that has good biocompatibility and biodegradability,but still has deficiencies that can limit its use in biomedical, environmental, textile fields etc. Considering the advantages of each component, the mixing between CA and PLLA is expected to form biocomposites that have superior properties and good performance on their application. This study was conducted to study the effect of changes in weight ratio and concentration of solution between CA and PLLA on properties and characterization of biocomposite CA / PLLA beads, as well as the adsorption properties and performance of CA / PLLA beads, and studied the effect of time change of methylene blue solution on adsorption performance of CA / PLLA beads. The research method used in this study, starting with CA and PLLA was dissolved in an appropriate solvent which was then mixed and stirred until it becameiv homogeneous solution, the homogeneous solution of CA / PPLA was injected into the coagulation bath to form beads which were then dried. As for the test that must be done that are morphology analysis which use SEM, thermal stability test which use TGA test, DSC test that analyze about thermal properties beads and adsorption test which use spectrophotometry UV-VIS. From the research that has been done to obtain the CA / PLLA beads that the more PLLA added will be the smaller diameter of beads, this phenomenon occurs in both variable concentration of solution that is 10% and 15%. And for the TGA test results obtained the more PLLA added the lower the temperature required for degradation.. With observation time 36 hours soaking beads obtained %. Biggest %removal obtained with 10%wt variable with value of 45,80% and 15% wt variable is 43,68%.

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: CA, PLLA, Beads, Biokomposit, Adsorben
Subjects: Q Science > QD Chemistry
Q Science > QD Chemistry > Polymerization
T Technology > TP Chemical technology
Divisions: Faculty of Industrial Technology > Chemical Engineering > (S1) Undergraduate Theses
Depositing User: gilmar wicaksono
Date Deposited: 22 Nov 2017 02:18
Last Modified: 06 Mar 2019 04:48
URI: http://repository.its.ac.id/id/eprint/44483

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