?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=PENGARUH+KARBON+HITAM+TERHADAP+SIFAT+UJI+TARIK+KOMPOSIT+KARET+ALAM%0D%0ADENGAN+PENCAMPURAN+METODE+MANUAL%0D%0A&rft.creator=FAJAR+ANDI+SAPUTRA%2C+1015021062&rft.subject=Mesin+(General).+Mesin+Sipil+(General)&rft.description=Karet+alam+adalah+jenis+getah+cair+lateks+atau+polimer+isoprene+(C5H8).+Karbon+hitam+adalah+salah+bahan+pengisi+yang+mempengaruhi+sifat+mekanik+material.+Komposit+adalah+kombinasi+dari+dua+atau+lebih+material+yang+berbeda.+Pencampuran+karet+alam+dengan+karbon+hitam+menggunakan+metode+otomatis+yang+menghasilkan+pencampuran+homogen%2C+tetapi+biaya+pembuatannya+sangat+mahal.+Oleh+karena+itu%2C+untuk+mengurangi+biaya+pembuatan+digunakan+pencampuran+metode+manual.+Pencampuran+metode+manual+menggunakan+proses+pencampuran+manual.+Proses+pembuatannya+menggunakan+biaya+yang+murah.+Penelitian+ini+bertujuan+untuk+mengetahui+sifat+uji+tarik+dari+komposit+karbon+hitam-Karet+Alam+(KH-KA)+menggunakan+metode+campuran+manual.%0D%0AKomposit+itu+dibuat+menjadi+dua+sampel.+Komposit+sampel+Karet+Alam-Karbon+Hitam+(KA-KH)+dan+sampel+Karet+Alam+(KA).+Proses+pembuatan+komposit+KA-KH+adalah+sebagai+berikut.+Pertama%2C+getah+karet+dimixer+selama+3+menit.+Kedua%2C+KH+ditambahkan+dan+dimixer+selama+15+menit.+Ketiga%2C+asam+format+sebagai+koagulan+ditambahkan+dan+dimixer+selama+2+menit.+Keempat%2C+pencetakan+sampel+dengan+pembebanan+8+ton+selama+15+menit.+Langkah+terakhir+adalah+proses+curing+komposit+sampel+KA-KH+ke+dalam+furnace+dengan+suhu+150+oC+selama+15+menit.+Prosedur+untuk+pembuatan+sampel+KA+sama+dengan+sebelumya.+Perbedaannya+yaitu+tidak+ditambahkan+KH.+Pengujian+sampel+komposit+Sampel+KH-KA+dan+sampel+KA+mengacu+pada+uji+tarik+standar+ASTM+D+412+dan+analisa+kegagalan+KA-KH.%0D%0AHasil+penelitian+menunjukkan+bahwa+kekuatan+tarik+tertinggi+KA-KH+20+%25+adalah+1%2C18+MPa.+Kekuatan+tarik+terendah+yaitusampel+KA+adalah+0%2C44+MPa.+Regangan+tarik+tertinggi+yaitu+sampel+KA+adalah+442%2C19+%25.+Regangan+tarik+terendah+yaitu+sampel+KA-KH+30+%25+adalah+6%2C69+%25.+Pengamatan+dengan+SEM+menunjukkan+bahwa+sampel+komposit+KA-KH+25+%25+dan+sampel+KA-KH+30+%25+memiliki+kekuatan+tarik+terendah.+Hal+ini+dikarenakan+campuran+tidak+tercampur+secara+merata.+Sampel+komposit+KA-KH+20+%25+menunjukkan+morfologi+yang+homogen%2C+sehingga+komposit+ini+memiliki+kekuatan+tarik+tertinggi.%0D%0A%0D%0AKata+kunci+%3A%09Karet+Alam+(KA)%2C+Komposit+Karet+Alam-Karbon+Hitam+(KA-KH)%2C+dan+Sifat+Uji+tarik%0D%0A%0D%0A%0D%0A%0D%0Aabstract%0D%0A%0D%0ANatural+rubber+is+a+kind+of+latex+or+isoprene+polimer+liquid+(C5H8).+Carbon+black+is+one+of+tensile+properties+the+filler+material.+Composite+is+a+combination+of+two+or+more+different+material.+The+mixing+of+natural+rubber+with+carbon+black+using+an+automatic+method+was+resulted+in+homogeneus+compound%2C+however+it+is+expensive.+Hence+to+reduce+cost%2C+manual+mixing+method+was+used.+Manual+mixing+method+using+a+manual+a+low+cost+mixing+need+procces.The+research+was+aim+to+investigate+the+tensile+properties+of+Carbon+Black-Natural+Rubber+(CB-NR)+composite+tensile+properties+using+manual+mixed+method.%0D%0AThe+composite+was+made+into+two+samples.+CB-NR+composite+and+NR+samples.+The+preparation+of+CB-NR+composite+is+as+follow.Fritsly%2C+the+NR+latex+was+mixed+for+3+minutes.+Secondly%2C+CB+was+added+and+mixed+for+15+minutes.+Thirdly%2C+the+formic+acid+as+coagulant+was+mixed+for+2+minutes.+Fourthly%2C+the+sample+was+pressured+of+8+tons+for+15+Minutes.+Last+step+was+curing+of+CB-NR+composite+in+the+furnace+at+temperature+150+oC+for+15+minutes.+The+procedure+for+preparation+to+NR+sample+was+the+same.+The+diferent+was+only+there+was+no+CB+in+mixed.+The+CB-NR+and+NR+sample+was+tested+according+to+ASTM+D+412+tensile+test+standard+and+the+observation+failure+was+used+mechanisme+of+CB-NR.%0D%0AThe+result+showed+that+highest+tensile+strength+CB-NR+20+%25+was+1.18+MPa.+The+that+lowest+tensile+strength+NR+was+0.44+MPa.+The+that+highest+tensile+strain+NR+was+442.19+%25.+The+that+lowest+tensile+strain+CB-NR+30+%25+was+6.69+%25.+The+observation+SEM+showed+that+the+CB-NR+25+%25+and+CB-NR+30+%25+composites+has+the+lowest+tensile+strength%2C+it+is+because+the+mixed+was+not+well+blended.+The+CB-NR+20+%25+composite+morphology+was+homogeneous%2C+hence+this+composite+has+the+highest+tensile+strength.%0D%0A%0D%0AKeywords+%3A+Natural+rubber+(NR)%2C+Composite+Carbon+Black-Natural+Rubber+(CB-NR)%2C+and+Tensile+Properties.%0D%0A&rft.publisher=UNIVERSITAS+LAMPUNG&rft.date=2016-08-26&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F24094%2F1%2FABSTRAK%2520%2528ABSTRACT%2529.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F24094%2F2%2FSKRIPSI%2520FULL.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F24094%2F3%2FSKRIPSI%2520TANPA%2520BAB%2520PEMBAHASAN.pdf&rft.identifier=++FAJAR+ANDI+SAPUTRA%2C+1015021062++(2016)+PENGARUH+KARBON+HITAM+TERHADAP+SIFAT+UJI+TARIK+KOMPOSIT+KARET+ALAM+DENGAN+PENCAMPURAN+METODE+MANUAL.++UNIVERSITAS+LAMPUNG%2C+FAKULTAS+TEKNIK+.+++++&rft.relation=http%3A%2F%2Fdigilib.unila.ac.id%2F24094%2F