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Indra Surya
Departemen Teknik Kimia, Fakultas Teknik, Universitas Sumatera Utara
Chemical Engineering, Chemistry & Bioengineering Chemistry Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology

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PENGARUH PENAMBAHAN ALKANOLAMIDA TURUNAN MINYAK KELAPA SAWIT TERHADAP SIFAT-SIFAT UJI TARIK VULKANISAT KARET ALAM BERPENGISI SILIKA Darwis Syarifuddin Hutapea; Harry Laksana Tampubolon; Indra Surya
Jurnal Teknik Kimia USU Vol. 1 No. 1 (2012): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (223.422 KB) | DOI: 10.32734/jtk.v1i1.1402

Abstract

By using semi-efficient sulfur accelerated vulcanization sistem, an investigation about function of the alkanolamide as additive material on silica filled natural rubber was carried out. Alkanolamide was made by reacted between refined bleaching deodorized palm stearin with diethanolamine. Alkanolamide was added to the natural rubber compound silica filled, which is resulted vulcanizate natural rubber filled compound and occurring increasing of tensile strength, modulusand crosslinkdensity up to 5 phr. If was added more 5 phr, so reduction of the tensile strength modulus and crosslink density.
PENGARUH PENAMBAHAN LAURIL ALKOHOL TERHADAP SIFAT-SIFAT UJI TARIK KOMPOSIT KARET ALAM TERISI SILIKA Rieska Wulandari Sianturi; Indra Surya
Jurnal Teknik Kimia USU Vol. 7 No. 1 (2018): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (495.112 KB) | DOI: 10.32734/jtk.v7i1.1636

Abstract

By using a semi-efficient vulcanisation system; the effects of lauryl alcohol (LA) as a new rubber additive on tensile properties of silica-filled natural rubber (NR) composites were investigated. The NR composites were filled by silica filler with a fixed loading, 30.0 phr (part per hundred rubber). The LA is a fatty alcohol based on palm kernel oil and incorporated into the silica-filled NR composites. The LA loadings were 1.0 phr, 2.0 phr, 3.0 phr and 4.0 phr. It was found that LA functioned as an internal plasticiser. As an internal plasticiser, LA decreased the tensile modulus and increased elongations at break of silica-filled NR composites. It was also found that LA increased the crosslink density and tensile strength up to 3.0 phr of LA loading. The 3.0 phr of LA was the optimum loading.
Co-Authors Darwis Syarifuddin Hutapea Harry Laksana Tampubolon Rieska Wulandari Sianturi