Claim Missing Document
Check
Articles

Found 5 Documents
Search

Natural Zeolite as Substitution Filler on the NBR/EPDM Composite: Characteristics of Swelling Resistance and Compression Set noor maryam setyadewi; Ike Setyorini; hesty eka mayasari
Jurnal Teknologi Proses dan Inovasi Industri Vol 5, No 2 (2020): Vol. 5, No. 2, November 2020
Publisher : Balai Riset Dan Standardisasi Industri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36048/jtpii.v5i2.6555

Abstract

The resistance of rubber materials to solvents and compression resistance need to be studied in order to determine the proper conditions of use and storage. In this research, we will study the effect of natural zeolite as a filler substitution on the swelling characteristics and compression resistance of Nitrile Butadiene Rubber (NBR)/Ethylene Propylene Diene Rubber (EPDM) composites. The zeolite filler was varied based on the amount and treatment (5 phr and 10 phr with and without modification). The NBR/EPDM composites were made using a two-roll mill and vulcanized using a hydraulic press. Furthermore, the composites were tested for resistance to immersion (swelling) according to ISO 1817 using IRM 903, hexane, and toluene. The compression resistance testing is carried out according to ISO 815 with a compression test apparatus. From the research it is known that zeolite can be a suitable filler substitution for NBR/EPDM composites. The 10 phr modified zeolite is the most suitable filler substitution to increase immersion resistance and compression resistance for NBR/EPDM composites
Effect of natural zeolite as substrate filler on the properties of NBR/EPDM blend Hesty Eka Mayasari; Noor Maryam Setyadewi
Majalah Kulit, Karet, dan Plastik Vol 35, No 1 (2019): 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 (446.995 KB) | DOI: 10.20543/mkkp.v35i1.4759

Abstract

The NBR/EPDM blend has a great ozone, oil, and heat resistance. Carbon black is the most commonly used filler material for rubber goods. But, it is less environmentally friendly and less healthy friendly. In this study, we will study the use of natural zeolite as a substitute for the filler. This blend was carried out by a two-roll mill and tested by rheometer and tensile strength tester. From the research that has been done, it is known that vulcanizate with carbon black is better than all of the vulcanizate using zeolite as filler substitute. Vulcanizate with CB provide the fastest curing time, the fastest reaction speed and also the best mechanical properties. Vulcanization with the 10 phr zeolite gives the optimum curing time and the best mechanical properties compared to the substitution of other fillers. This shows that 10 phr zeolite (16.7%) can be a suitable filling material for NBR/EPDM blend.
Pengaruh penambahan pati tapioka terhadap sifat mekanis dan struktur komposit high density polyethylene Dwi Wahini Nurhajati; Ihda Novia Indrajati; Hesty Eka Mayasari; Muhammad Sholeh
Majalah Kulit, Karet, dan Plastik Vol 34, No 2 (2018): 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 (23.533 KB) | DOI: 10.20543/mkkp.v34i2.4138

Abstract

Telah dilakukan penelitian tentang pengaruh penambahan pati tapioka terhadap sifat mekanis dan struktur komposit plastik high density polyethylene (HDPE). Komposit HDPE berisi pati tapioka dibuat menggunakan internal mixer Haake Rheomix pada suhu 130°C dan kecepatan rotor 40 rpm selama 15 menit. Pati tapioka sebelum dibuat komposit dicampur lebih dulu dengan gliserol, air dan asam asetat. Jumlah pati di dalam komposit HDPE divariasi 30, 40, 50, 60, dan 70%. Penambahan pati tapioka menurunkan sifat kuat tarik namun meningkatkan nilai perpanjangan putus dan densitas komposit HDPE. Perlakuan aging terhadap komposit HDPE yang berisi pati tapioka ≥ 50% menaikkan sifat kuat tarik namun menurunkan sifat perpanjangan putusnya. Difraktogram XRD komposit HDPE memperlihatkan bahwa penambahan pati tapioka menyebabkan terjadinya pergeseran nilai 2-theta dan penurunan intensitasnya. Spektra FTIR komposit HDPE yang berisi pati tapioka memperlihatkan pergeseran panjang gelombang yang diduga terjadinya transisi amorf-kristal.
Natural Zeolite as Substitution Filler on the NBR/EPDM Composite: Characteristics of Swelling Resistance and Compression Set noor maryam setyadewi; Ike Setyorini; hesty eka mayasari
Jurnal Teknologi Proses dan Inovasi Industri Vol 5, No 2 (2020): Vol. 5, No. 2, November 2020
Publisher : Balai Riset Dan Standardisasi Industri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36048/jtpii.v5i2.6555

Abstract

The resistance of rubber materials to solvents and compression resistance need to be studied in order to determine the proper conditions of use and storage. In this research, we will study the effect of natural zeolite as a filler substitution on the swelling characteristics and compression resistance of Nitrile Butadiene Rubber (NBR)/Ethylene Propylene Diene Rubber (EPDM) composites. The zeolite filler was varied based on the amount and treatment (5 phr and 10 phr with and without modification). The NBR/EPDM composites were made using a two-roll mill and vulcanized using a hydraulic press. Furthermore, the composites were tested for resistance to immersion (swelling) according to ISO 1817 using IRM 903, hexane, and toluene. The compression resistance testing is carried out according to ISO 815 with a compression test apparatus. From the research it is known that zeolite can be a suitable filler substitution for NBR/EPDM composites. The 10 phr modified zeolite is the most suitable filler substitution to increase immersion resistance and compression resistance for NBR/EPDM composites
Kinetika vulkanisasi dan sifat mekanis komposit acrylonitrile butadiene rubber (NBR) Arum Yuniari; Ike Setyorini; Hesty Eka Mayasari
Majalah Kulit, Karet, dan Plastik Vol 32, No 2 (2016): 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 (97.776 KB) | DOI: 10.20543/mkkp.v32i2.1594

Abstract

The aim of this research was to study the effect of vulcanization temperature on mechanical properties and curing kinetics of NBR composites. The composites were formulated by using two types of carbon black i.e. N-330 and N-774. The curing kinetics was determined using Moving Die Rheometer. The network formation processes were related to torque and time. The vulcanizates were obtained by compression molding in a hydraulic press at 150°C and 160°C. The mechanical properties observed include tensile strength, elongation at break, hardness, and tear strength. Kinetics studies were approached by Arrhenius equation and the reaction mechanism was assumed following first order reaction. The results showed that curing kinetics can be approached by the equation from the rheometer data. The surface area of carbon black strongly influenced the mechanical properties and rate constant (k) of NBR composite. Carbon black N-330 can be used as a desirable reinforcing filler which gave a higher mechanical properties than the other type of carbon black.Keywords: curing kinetics, NBR, temperature, mechanics.