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All Journal KLOROFIL: Jurnal Ilmu Biologi dan Terapan KLOROFIL: Jurnal Ilmu Biologi dan Terapan
Arbaiyah, Arbaiyah
3Program Studi Sarjana Kimia, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Sumatera Utara
Biochemistry, Genetics & Molecular Biology Immunology & microbiology

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Optimasi Sifat Mekanik dan Morfologi Permukaan Campuran Resiprena dengan Matriks Polimer Polipropilena dan Polistirena melalui Penambahan Stearin Tarigan, Ayu Syufiatun Br; Hartati, Nina; Wirjosentono, Basuki; Arbaiyah, Arbaiyah; Mashitoh, Anjar Siti
KLOROFIL: Jurnal Ilmu Biologi dan Terapan Vol 9, No 1 (2025): KLOROFIL: JURNAL ILMU BIOLOGI DAN TERAPAN
Publisher : Program Studi Biologi Fakultas Sains dan Teknologi Universitas Islam Negeri Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30821/kfl:jibt.v9i1.25687

Abstract

This study aims to investigate the effect of adding resiprene and stearic acid on the mechanical properties and surface morphology of polyolefin blends, specifically polypropylene (PP) and polystyrene (PS). Resiprene was incorporated as an additive to enhance flexibility, while stearic acid was introduced to improve polymer compatibility and blend dispersion. The test results showed that the addition of 20 phr resiprene to polypropylene yielded the highest tensile strength of 9.63 MPa and an elongation of 5.85%, indicating high flexibility and compatibility of the blend. In contrast, the tensile strength of the PS-based blends was generally lower than that of the PP-based counterparts. The addition of 1 phr stearic acid proved effective in reducing the number of pores on the surface of both PP and PS blends. Interestingly, the PS–resiprene–stearic acid blend exhibited a more refined surface morphology compared to the PP–resiprene–stearic acid blend, suggesting higher compatibility of PS within the composite system.
Optimasi Sifat Mekanik dan Morfologi Permukaan Campuran Resiprena dengan Matriks Polimer Polipropilena dan Polistirena melalui Penambahan Stearin Tarigan, Ayu Syufiatun Br; Hartati, Nina; Wirjosentono, Basuki; Arbaiyah, Arbaiyah; Mashitoh, Anjar Siti
KLOROFIL: Jurnal Ilmu Biologi dan Terapan Vol 9, No 1 (2025): KLOROFIL: JURNAL ILMU BIOLOGI DAN TERAPAN
Publisher : Program Studi Biologi Fakultas Sains dan Teknologi Universitas Islam Negeri Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30821/kfl:jibt.v9i1.25687

Abstract

This study aims to investigate the effect of adding resiprene and stearic acid on the mechanical properties and surface morphology of polyolefin blends, specifically polypropylene (PP) and polystyrene (PS). Resiprene was incorporated as an additive to enhance flexibility, while stearic acid was introduced to improve polymer compatibility and blend dispersion. The test results showed that the addition of 20 phr resiprene to polypropylene yielded the highest tensile strength of 9.63 MPa and an elongation of 5.85%, indicating high flexibility and compatibility of the blend. In contrast, the tensile strength of the PS-based blends was generally lower than that of the PP-based counterparts. The addition of 1 phr stearic acid proved effective in reducing the number of pores on the surface of both PP and PS blends. Interestingly, the PS–resiprene–stearic acid blend exhibited a more refined surface morphology compared to the PP–resiprene–stearic acid blend, suggesting higher compatibility of PS within the composite system.
Co-Authors Anjar Siti Mashitoh Hartati, Nina Tarigan, Ayu Syufiatun Br Wirjosentono, Basuki