Nasruddin, Nasruddin
RESEaRCHER at Balai Riset dan Standardisasi Industri Palembang

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KARAKTERISTIK SIFAT MEKANIK SOLID TYRE DENGAN BAHAN PENGISI DAN PELUNAK BERBASIS SUMBER DAYA ALAM LOKAL Nasruddin, Nasruddin
Jurnal Dinamika Penelitian Industri Vol 28, No 1 (2017): JURNAL DINAMIKA PENELITIAN INDUSTRI
Publisher : Balai Riset dan Standardisasi Industri Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (994.226 KB) | DOI: 10.28959/jdpi.v28i1.2235

Abstract

The objective of research was to study the mechanical properties of solid tyre which was made by using local fillers namely silica extracted from quart sand, coal fly ash, kaolin as well as  used cooking oil as softener. Solid tyre were made through mastication, vulcanization, and molding. The Solid tyre comprising 5 (five) formulas namely Formula A, B, C, D, and  formula E. The mechanical properties of the solid tyre of each treatment were compared with the mechanical properties of the solid tyre originating from imports (F*). Testing of mechanical properties for each treatment were made 3 (three) replications. Test result showed  that the mechanical properties of formula B was comparable to the imported solid tyre in term of hardness 76 shore A; Tensile strength of 133.91 kg / cm2; Modulus 200% was 23.64; Elongation at break 562%; Tear strength 64.88 kg.c-1; Specific gravity 1.23; Abrassion resistance (DIN) 108.25 mm3; Compression set at 25% defl, 70oC, 22h  was 73,43; Ozone resistance (50 pphm 20% strain 24 h 40oC) was no crack; and tensile strength after aging (70oC, 24 h) 120.18 kg / cm2.
NATURAL RUBBER MODIFICATION FOR UPPER LAYER OF RUBBERIZED ASPHALT PAVING BLOCK AS SHOCK ABSORBER Nasruddin, Nasruddin
Jurnal Dinamika Penelitian Industri Vol 28, No 2 (2017): JURNAL DINAMIKA PENELITIAN INDUSTRI
Publisher : Balai Riset dan Standardisasi Industri Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (844.786 KB) | DOI: 10.28959/jdpi.v28i2.3093

Abstract

The research of rubber compounding modification for upper layer of rubberized asphalt paving block as shock absorber using natural rubber, styrene butadiene rubber (SBR) as synthetic rubber, fly ash as filler and also vegetable oil as plasticizer has been conducted. The research design was varying the filler Si-69, fly ash and palm oil. The five formulas A, B, C, D, and E designed by varying the amount of Si-69 (48.5; 50.75; 53.00; 55.25; and 57.50) phr; coal fly ash (4.75, 7.00, 9.25, 11.50 and 13.75) phr; and vegetable oil from palm oil (6.5, 7.0, 7.5, 8.0, 8.5, and 9) phr, while the NR:SBR was 82.50: 17.50 phr for each formula. Based on the testing results, the formula D has the best physic-mechanical properties among others. It has specific gravity 1.78 g/cm3; hardness 81 ShoreA; abrasion resistance 52,85 mm3 ; compression set, 25% defl, 70oC, 22h: 21,40%; tensile strength 195,69 N/ m3; ozone resistance showed no crack.
SIFAT MEKANIK RUBBER WAVES DARI KOMPOSIT KARET ALAM DAN KARET SINTESIS MENGGUNAKAN MULTI FILLER Nasruddin, Nasruddin
Jurnal Dinamika Penelitian Industri Vol 29, No 1 (2018): JURNAL DINAMIKA PENELITIAN INDUSTRI
Publisher : Balai Riset dan Standardisasi Industri Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (862.288 KB) | DOI: 10.28959/jdpi.v29i1.3825

Abstract

The objective of this research was to study the effect of fillers such as carbon black, caolin, and calcium carbonates on the physic-mechanical properties of rubber product (rubber waves). The design formula of this research was five formulas (A; B; C; D; and E), that designs as follows natural rubber (92; 90; 88; 84; and 80) phr; chlorprene rubber (4; 5; 6; 8; and 10); carbon black (50; 49; 48; 47; and 46) phr; caoline (10; 8; 6; 4; and 2) phr; and calcium carbonate (2; 4; 6; 8; and 10) phr respectively for each formulas. The natural and synthetics  were masticated using two roll mill and then vulcanized according to the standard procedures. The best formula for rubber wave product is formula B that has properties as follows: specific gravity 1.206; hardness 71 shore A; abrasion resistance 190 mm3; 300% modulus 7.9 MPa; tensile strength 12.8 MPa; compression set 9.51%; and ozone resistance no crack.Â