Sintesis dan karakterisasi komposit polipropilena/silika berbasis abu ampas tebu

  • Idra Herlina Program Studi Kimia, Jurusan Sains, Institut Teknologi Sumatera, Lampung Selatan, Indonesia
  • Yulistia Anggraini Program Studi Kimia, Jurusan Sains, Institut Teknologi Sumatera, Lampung Selatan, Indonesia
  • Edwin Rizki Safitra Program Studi Teknik Kimia, Jurusan Teknologi Produksi dan Industri, Institut Teknologi Sumatera, Lampung Selatan, Indonesia

Abstract

Polypropylene/sugarcane bagasse silica (PP/SiO2) composites have been synthesized. The sol gel method with 1 M NaOH was used to synthesize silica from bagasse ash. The results showed that the silica yield was 52.8%. The resulting silica was blended with polypropylene with a mass ratio variation of 1:5, 1:10, 1:15, 1:20, and 1:25 to obtain PP/SiO2 composites. Composites in variations of 1:5 and 1:10 produce fragile plastic, whereas composites in variations 1:15, 1:20, and 1:25 produce strong and homogeneous plastic. The water resistance test showed that PP/SiO2 with variations of 1:15, 1:20,and 1:25 had good water resistance (> 94%), whereas variations of 1:5 and 1:10, the resistance to water dropped to 80-87%. FT-IR was used to characterize polypropylene, silica synthesized from bagasse ash, and PP/SiO2 composites (1:25) to observe functional group changes. FT-IR analysis showed that silica was successfully synthesized from bagasse ash. This is indicated by a band that widened at a wavenumber of 3400-3600 cm-1, which is characteristic of the O-H strain on water. This band is confirmed by a band with a wavenumber of 1660 cm-1 which is a bend in the O-H in a water molecule. Other silica characteristics can be seen in bands with wavenumbers of 1075 cm-1 and 950 cm-1, which are strains of Si-O, and bands with a wavenumber of 460 cm-1, which is a bend of Si-O. The spectra of polypropylene and PP/SiO2 were also similar. The similarity between the polypropylene and PP/SiO2 spectra indicates that SiO2 spreads homogeneously in polypropylene.

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Author Biographies

Idra Herlina, Program Studi Kimia, Jurusan Sains, Institut Teknologi Sumatera, Lampung Selatan, Indonesia

Program Studi Kimia, Jurusan Sains, Institut Teknologi Sumatera, Lampung Selatan, Indonesia

Yulistia Anggraini, Program Studi Kimia, Jurusan Sains, Institut Teknologi Sumatera, Lampung Selatan, Indonesia

Program Studi Kimia, Jurusan Sains, Institut Teknologi Sumatera, Lampung Selatan, Indonesia

Edwin Rizki Safitra, Program Studi Teknik Kimia, Jurusan Teknologi Produksi dan Industri, Institut Teknologi Sumatera, Lampung Selatan, Indonesia

Program Studi Teknik Kimia, Jurusan Teknologi Produksi dan Industri, Institut Teknologi Sumatera, Lampung Selatan, Indonesia

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Published
2022-04-10
How to Cite
HERLINA, Idra; ANGGRAINI, Yulistia; SAFITRA, Edwin Rizki. Sintesis dan karakterisasi komposit polipropilena/silika berbasis abu ampas tebu. Journal of Science and Applicative Technology, [S.l.], v. 6, n. 1, p. 16-21, apr. 2022. ISSN 2581-0545. Available at: <https://journal.itera.ac.id/index.php/jsat/article/view/766>. Date accessed: 05 oct. 2022. doi: https://doi.org/10.35472/jsat.v6i1.766.