?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=PENGARUH+STRUKTUR+AGGREGATE+KARBON+HITAM+TERHADAP%0D%0AKEKUATAN+TARIK+KOMPOSIT+KARET+ALAM+%2F+KARBON+HITAM&rft.creator=RISKI+ARI+PRATAMA+%2C+1015021051&rft.subject=Mesin+(General).+Mesin+Sipil+(General)&rft.description=Karet+alam+merupakan+salah+satu+komoditi+perkebunan+yang+sangat+penting%0D%0Aperanannya+dalam+ekonomi+Indonesia.+Karet+alam+dijadikan+sebagai+sumber%0D%0Apendapatan+dan+kesejahteraan+masyarakat+serta+sebagai+pendorong+pertumbuhan%0D%0Aekonomi+sentra-sentra+baru+di+wilayah+sekitar+perkebunan+karet.+Sebagian+besar%0D%0Apetani+karet+di+Indonesia+lebih+memilih+menjual+karet+alam+hasil+sadapan+mereka%0D%0Akepada+pengepul+dengan+harga+yang+relatif+murah.+Hal+ini+disebabkan+oleh+kurang%0D%0Amengertinya+petani+karet+tentang+cara+pemrosesan+karet+olahan+agar+menghasilkan%0D%0Aproduk+olahan+karet+yang+berkualitas+dan+tentunya+bernilai+jual+tinggi+sehingga%0D%0Adapat+menambah+keuntungan+bagi+para+petani+karet.+Salah+satu+peningkatan+nilai%0D%0Aekonomis+karet+adalah+dengan+membuat+komposit+berbahan+dasar+karet+alam.%0D%0AKomposit+merupakan+salah+satu+alternatif+untuk+menghasilkan+material+yang+dari%0D%0Asifat+mekaniknya+lebih+baik+dari+material+lainnya.+Tujuan+dari+penelitian+ini+adalah%0D%0Amengetahui+kekuatan+tarik+komposit+karet+alam+%2F+karbon+hitam.+Bahan+pengisi%0D%0Akomposit+yang+digunakan+pada+penelitian+ini+adalah+karbon+hitam+dengan+seri%0D%0AN220%2C+N330%2C+N550%2C+dan+N660.+Pengujian+komposit+ini%2C+menggunakan+pengujian%0D%0Atarik+dengan+ASTM+D-412.+Dari+hasil+pengujian+tarik+tersebut+diperoleh+nilai+pada%0D%0Akomposit+karet+alam+%E2%80%93+karbon+hitam+dengan+penguat+karbon+hitam+N220+memiliki%0D%0Akekuatan+tarik+tertinggi+yaitu+sebesar+1.216+MPa.+Sedangkan+kekuatan+tarik%0D%0Aterendah+0.610+MPa+pada+komposit+dengan+penguat+karbon+hitam+N550.%0D%0ADikarenakan+struktur+pada+penguat+karbon+hitam+N220+lebih+komplek+dan+rapat%0D%0Adibandingkan+dengan+struktur+penguat+karbon+hitam+N550+yang+lebih+sederhana.%0D%0ABerdasarkan+hasil+foto+makro+dan+hasil+Scanning+Electron+Microscope%0D%0Amenunjukkan+besarnya+kekuatan+tarik+tidak+hanya+dipengaruhi+oleh+struktur%2C%0D%0Aaglomerat+adalah+penyebab+kekuatan+tarik+komposit.%0D%0AKata+kunci+%3AKomposit%2C+karet+alam%2C+karbon+hitam%2C+struktur%2C+kekuatan+tarik%2C%0D%0AScanning+Electron+Microscope+(SEM).%0D%0A%0D%0Aabstract%0D%0A%0D%0ANatural+rubber+is+one+of+the+most+important+plantation+commodities+in+Indonesia's%0D%0Aeconomy.+Natural+rubber+used+as+a+source+of+income+and+welfare+of+the%0D%0Acommunity+and+as+a+driver+of+economic+growth+of+new+centers+in+the+area+around%0D%0Athe+rubber+plantation.+Most+of+the+rubber+farmers+in+Indonesia+prefer+to+sell%0D%0Anatural+rubber+from+their+tappers+to+the+collectors+with+a+relatively+cheap+price.%0D%0AThis+is+caused+by+the+lack+of+understanding+of+rubber+farmers+on+how+to+process%0D%0Aprocessed+rubber+to+produce+high+quality+rubber+processing+products+and+of%0D%0Acourse+high+selling+value+so+as+to+increase+profits+for+rubber+farmers.+One+of+the%0D%0Aincreasing+economic+value+of+rubber+is+by+making+composite+based+on+natural%0D%0Arubber.+Composites+are+an+alternative+to+produce+materials+that+are+of+better%0D%0Amechanical+properties+than+other+materials.+The+purpose+of+this+research+is+to%0D%0Aknow+the+tensile+strength+of+natural+rubber+composite+%2F+carbon+black.+The%0D%0Acomposite+filler+used+in+this+study+is+carbon+black+with+N220%2C+N330%2C+N550%2C+and%0D%0AN660+series.+This+composite+test%2C+using+tensile+testing+with+ASTM+D-412.+From%0D%0Athe+tensile+test+results+obtained+value+on+natural+rubber+composite+-+carbon+black%0D%0Awith+carbon+black+reinforcement+N220+has+the+highest+tensile+strength+of+1.216%0D%0AMPa.+While+the+lowest+tensile+strength+of+0.610+MPa+on+composites+with+black%0D%0Acarbon+N550.+Because+the+structure+of+the+N220+carbon+black+reinforcement+is%0D%0Amore+complex+and+denser+than+the+simpler+N550+carbon+black+reinforcement%0D%0Astructure.+Based+on+the+results+of+macro+photographs+and+the+results+of+Scanning%0D%0AElectron+Microscope+shows+the+magnitude+of+tensile+strength+is+not+only%0D%0Ainfluenced+by+the+structure%2C+agglomerates+are+the+cause+of+composite+tensile%0D%0Astrength.%0D%0AKeywords%3A+Composite%2C+natural+rubber%2C+carbon+black%2C+structure%2C+tensile+strength%2C%0D%0AScanning+Electron+Microscope+(SEM).&rft.publisher=FAKULTAS+TEKNIK+&rft.date=2017-10-18&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F28975%2F1%2FABSTRACT%2520%2528ABSTRAK%2529.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F28975%2F2%2FSKRIPSI%2520FULL.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F28975%2F3%2FSKRIPSI%2520TANPA%2520BAB%2520PEMBAHASAN.pdf&rft.identifier=++RISKI+ARI+PRATAMA+%2C+1015021051++(2017)+PENGARUH+STRUKTUR+AGGREGATE+KARBON+HITAM+TERHADAP+KEKUATAN+TARIK+KOMPOSIT+KARET+ALAM+%2F+KARBON+HITAM.++FAKULTAS+TEKNIK+%2C+UNIV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