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All Journal Majalah Kulit, Karet, dan Plastik Jurnal Teknik Kimia USU JURNAL KIMIA SAINTEK DAN PENDIDIKAN
Indra Surya, Indra
Departemen Teknik Kimia, Fakultas Teknik Universitas Sumatera Utara
Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology

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Pemanfaatan limbah kulit singkong termodifikasi alkanolamida sebagai bahan pengisi dalam produk lateks karet alam: Pengaruh waktu vulkanisasi Harahap, Hamidah; Hadinatan, Kelvin; Hartanto, Adrian; Surya, Elmer; Surya, Indra
Majalah Kulit, Karet, dan Plastik Vol 31, No 1 (2015): Majalah Kulit, Karet, dan Plastik
Publisher : Center for Leather, Rubber, and Plastic Ministry of Industry, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (965.506 KB) | DOI: 10.20543/mkkp.v31i1.177

Abstract

The purpose of this research was to study the effect of drying time on the mechanical properties of natural rubber latex filled with cassava peel waste modified alkanolamide. Cassava peel is a waste, containing cellulose which is potential as fillers in natural rubber latex products. Cassava peel waste was dried and milled until the size of 100 mesh. Alkanolamide is one type of non-ionic surfactant which is synthesized from RBDPS (Refined Bleached Deodorized Palm Stearin) and diethanolamine. Alkanolamide has polar group which can modified cassava peel waste and make strong chemical bonding with natural rubber latex. The production of natural rubber latex products was started from pre-vulcanization at 70°C until the system was cured and the chloroform number has reached number 3. Natural rubber latex was formed into films by coagulant dipping and drying method at 120°C for 10 minutes and 20 minutes. Results show that longer drying time will improve the crosslink density and tensile strength of natural rubber latex products until the addition of 15 phr cassava peel waste powder. Keywords: drying time, alkanolamide, cassava peel, natural rubber latex.ABSTRAKPenelitian ini bertujuan untuk mempelajari pengaruh waktu vulkanisasi terhadap sifat mekanik produk lateks karet alam berpengisi kulit singkong termodifikasi alkanolamida. Kulit singkong merupakan limbah yang mengandung selulosa dan berpotensi untuk digunakan sebagai bahan pengisi dalam produk lateks karet alam. Kulit singkong dikeringkan dan dihaluskan hingga berukuran 100 mesh. Alkanolamida merupakan surfaktan non-ionik yang disintesis dari bahan baku RBDPS (Refined Bleached Deodorized Palm Stearin) dan dietanolamina. Alkanolamida mengandung gugus polar yang dapat memodifikasi tepung kulit singkong dan membentuk ikatan kimia yang kuat dengan lateks karet alam. Proses pembuatan produk lateks karet alam dimulai dengan proses pra-vulkanisasi pada suhu 70°C hingga lateks karet alam telah matang dan bilangan kloroform telah mencapai angka 3. Lateks karet alam dicetak dengan menggunakan teknik pencelupan berkoagulan dengan metode pengeringan pada suhu 120°C selama 10 menit dan 20 menit. Hasil penelitian menunjukkan waktu vulkanisasi yang lebih lama dapat meningkatkan nilai densitas sambung silang dan kekuatan tarik produk lateks karet alam hingga penambahan 15 phr tepung kulit singkong.     Kata kunci: waktu vulkanisasi, alkanolamida, kulit singkong, lateks karet alam.
Pemanfaatan limbah kulit singkong termodifikasi alkanolamida sebagai bahan pengisi dalam produk lateks karet alam: Pengaruh waktu vulkanisasi Hamidah Harahap; Kelvin Hadinatan; Adrian Hartanto; Elmer Surya; Indra Surya
Majalah Kulit, Karet, dan Plastik Vol 31, No 1 (2015): Majalah Kulit, Karet, dan Plastik
Publisher : Center for Leather, Rubber, and Plastic Ministry of Industry, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (965.506 KB) | DOI: 10.20543/mkkp.v31i1.177

Abstract

The purpose of this research was to study the effect of drying time on the mechanical properties of natural rubber latex filled with cassava peel waste modified alkanolamide. Cassava peel is a waste, containing cellulose which is potential as fillers in natural rubber latex products. Cassava peel waste was dried and milled until the size of 100 mesh. Alkanolamide is one type of non-ionic surfactant which is synthesized from RBDPS (Refined Bleached Deodorized Palm Stearin) and diethanolamine. Alkanolamide has polar group which can modified cassava peel waste and make strong chemical bonding with natural rubber latex. The production of natural rubber latex products was started from pre-vulcanization at 70°C until the system was cured and the chloroform number has reached number 3. Natural rubber latex was formed into films by coagulant dipping and drying method at 120°C for 10 minutes and 20 minutes. Results show that longer drying time will improve the crosslink density and tensile strength of natural rubber latex products until the addition of 15 phr cassava peel waste powder. Keywords: drying time, alkanolamide, cassava peel, natural rubber latex.ABSTRAKPenelitian ini bertujuan untuk mempelajari pengaruh waktu vulkanisasi terhadap sifat mekanik produk lateks karet alam berpengisi kulit singkong termodifikasi alkanolamida. Kulit singkong merupakan limbah yang mengandung selulosa dan berpotensi untuk digunakan sebagai bahan pengisi dalam produk lateks karet alam. Kulit singkong dikeringkan dan dihaluskan hingga berukuran 100 mesh. Alkanolamida merupakan surfaktan non-ionik yang disintesis dari bahan baku RBDPS (Refined Bleached Deodorized Palm Stearin) dan dietanolamina. Alkanolamida mengandung gugus polar yang dapat memodifikasi tepung kulit singkong dan membentuk ikatan kimia yang kuat dengan lateks karet alam. Proses pembuatan produk lateks karet alam dimulai dengan proses pra-vulkanisasi pada suhu 70°C hingga lateks karet alam telah matang dan bilangan kloroform telah mencapai angka 3. Lateks karet alam dicetak dengan menggunakan teknik pencelupan berkoagulan dengan metode pengeringan pada suhu 120°C selama 10 menit dan 20 menit. Hasil penelitian menunjukkan waktu vulkanisasi yang lebih lama dapat meningkatkan nilai densitas sambung silang dan kekuatan tarik produk lateks karet alam hingga penambahan 15 phr tepung kulit singkong.     Kata kunci: waktu vulkanisasi, alkanolamida, kulit singkong, lateks karet alam.
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 ALKANOLAMIDA TERHADAP KARAKTERISTIK PEMATANGAN DAN KEKERASAN VULKANISAT KARET ALAM BERPENGISI SILIKA Harry Laksana Tampubolon; Darwis Syarifuddin Hutapea; Indra Surya
Jurnal Teknik Kimia USU Vol. 1 No. 2 (2012): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (265.6 KB) | DOI: 10.32734/jtk.v1i2.1410

Abstract

By using a semi-efficient sulfur accelerated vulcanization system, a research about the effect of the alcanolamide on cure characteristics and hardnes propertiess of natural rubber filled silika and alkanolamide been done. Alcanolamide produced from palm oil derivatives reacted with dietanolamine. Alcanolamide aaded into rubber with levels 1.0, 3.0; 5.0; 7.0; 9.0; phr. It was found that alcanolamide gave shorter Scorch time and cure time. Alkanolamide also exhibited higher torque different, tensile moduli, tensile strength, and crosslink density up to 5.0 phr and ten decrease with future increaseing addition of alcanolamide.
PEMBUATAN SELULOSA ASETAT DARI α -SELULOSA TANDAN KOSONG KELAPA SAWIT M Roganda L Lumban Gaol; Roganda Sitorus; Yanthi S; Indra Surya; Renita Manurung
Jurnal Teknik Kimia USU Vol. 2 No. 3 (2013): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (601.235 KB) | DOI: 10.32734/jtk.v2i3.1447

Abstract

Utilization of empty fruit bunches of oil palm in Indonesia is still very low, so it should be developed further. One of them by researching the manufacture of cellulose acetate from oil palm empty fruit bunches. The process used in this study is the cellanase with α-cellulose materials. Stages reaction is activation, acetylation, hydrolysis, neutralization and drying. Activation in thethree-neck flask with the addition of 50 ml of glacial acetic acid and stirredfor 3 hour,then added 15 ml of acetic acid anhydride as acetylation agent. Acetylation performed with the variation of time, 2, 2.5, 3, 3.5 hours. In the hydrolysis step, add 2 ml of water and5 ml of glacial acetic acid. The reaction lasted for 30 minutes, then added 1 g of sodium acetate for neutralization, neutralization lasts for 5 minutes. Then do the washing up to the smell of acetic acid is lost, and the last stage is the drying is done with a temperature below 50 oC. The resulting products are then analyzed the degree of substitution, melting point, and then carried out FTIR analysis. The results obtained when the optimum conditions for the acetylation reaction is 2.5 - 3 hours.
PENGARUH PENAMBAHAN ALKANOLAMIDA TERHADAP SIFAT-SIFAT UJI TARIK VULKANISAT KARET ALAM BERPENGISI KAOLIN Yudha Widyanata; Indah M.S. Sitorus; Indra Surya
Jurnal Teknik Kimia USU Vol. 2 No. 4 (2013): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (279.538 KB) | DOI: 10.32734/jtk.v2i4.1483

Abstract

By using a semi-efficient vulcanization system, Alkanolamide (ALK) was incorporated into kaolin-filled natural rubber compound at 1.0; 3.0; 5.0 and 7.0 parts per hundred rubber (phr). An investigation was carried out to examine the effect of ALK on tensile properties of the kaolin filled-natural rubber compound. It was found that ALK exhibited higher tensile modulus, tensile strength, and elongation at break up to 5.0 phr of ALK loading and then decreased with further increasing of ALK loading. Crosslink density measurement proved that 5.0 phr loading of ALK in the kaolin-filled natural rubber system exhibited greatest tensile properties due to its highest crosslink density formation.
PENGARUH PENAMBAHAN ALKANOLAMIDA TERHADAP KARAKTERISTIK PEMATANGAN DAN KEKERASAN VULKANISAT KARET ALAM BERPENGISI KAOLIN Indah M.S. Sitorus; Yudha Widyanata; Indra Surya
Jurnal Teknik Kimia USU Vol. 2 No. 4 (2013): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (511.072 KB) | DOI: 10.32734/jtk.v2i4.1489

Abstract

By using a semi-efficient sulphur accelerated vulcanization system, an investigation of the effect of alkanolamide on cure characteristics and hardness properties of kaolin-filled natural rubber compounds was carried out. Alkanolamide was synthesized from Refined Bleached Deodorized Palm Stearin (RBDPS) and diethanolamine. Alkanolamide was incorporated into the kaolin filled-natural rubber compound at 1.0; 3.0; 5.0 and 7.0 Parts per-Hundred RubbeR (phr). It was found that alkanolamide gave shorter scorch time and cure time. Alkanolamide also exhibited higher torque different, crosslink density, and hardnessup to 5.0 phr and then decreased with further increasing the loading of alkanolamide.
EFFECT OF EPOXIDIZED NATURAL RUBBER AS A COMPATIBILIZER IN SILICA-FILLED STYRENE BUTADIENE RUBBER COMPOUND Indra Surya; Siswarni MZ
Jurnal Teknik Kimia USU Vol. 3 No. 2 (2014): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (166.05 KB) | DOI: 10.32734/jtk.v3i2.1500

Abstract

By using a semi-efficient vulcanization system, the effect of Epoxidized Natural Rubber (ENR) as a compatibilizer in silica-filled Styrene Butadiene Rubber (SBR) compound was carried out. The ENR was incorporated into the silica-filled SBR compound at 5.0 and 10.0 phr. An investigation was carried out to examine the effect of ENR on cure characteristics and tensile properties of the silica-filled SBR compound. It was found that ENR gave enhanced cure rate to the silica-filled SBR compound. ENR also exhibited a higher torque difference, tensile modulus, and tensile strength up to 10.0 phr. The study of rubber - filler interaction proved that the addition of ENR to the silica-filled SBR system improved the rubber - filler interaction.
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.
CURE CHARACTERISTICS AND CROSSLINK DENSITY OF NATURAL RUBBER/STYRENE BUTADIENE RUBBER BLENDS Indra Surya; Syahrul Fauzi Siregar
Jurnal Teknik Kimia USU Vol. 3 No. 4 (2014): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (168.37 KB) | DOI: 10.32734/jtk.v3i4.1644

Abstract

By using a semi-efficient vulcanization system, the cure characteristics and crosslink density of natural rubber/styrene butadiene rubber (NR/SBR) blends were studied with a blend ratio from 0 to 100% rubber. The scorch time, optimum cure time, and torque difference value of the blended rubber compounds were determined by using the Moving-Die Rheometer (MDR 2000). The crosslink density was determined by the Flory—Rehner approach. Results indicate that the scorch and cure times, ts2 and t90, of the NR/SBR blends increased with increasing the SBR content. Whilst, the maximum values of torque difference and crosslink density were performed by the NR/SBR blend with a blend ratio of 75/25.
Co-Authors Adrian Hartanto Adrian Hartanto, Adrian Ani Khodijah Darwis Syarifuddin Hutapea Darwis Syarifuddin Hutapea Elmer Surya Elmer Surya, Elmer Hamidah Harahap, Hamidah Harry Laksana Tampubolon Harry Laksana Tampubolon Indah M.S. Sitorus Kelvin Hadinatan Kelvin Hadinatan, Kelvin M Roganda L Lumban Gaol Philbert Renita Manurung Rieska Wulandari Sianturi Roganda Sitorus Siswarni MZ Syahrul Fauzi Siregar Vivi Purwandari Yanthi S Yudha Widyanata