?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=PENGARUH+PERLAKUAN+ASAM+NITRAT+PADA+PERMUKAAN%0D%0APARTIKEL+CARBON+NANOTUBE+(CNT)+TERHADAP+KEKUATAN%0D%0ATARIK+KOMPOSIT+HYBRID+CARBON+FIBER%2FCNT%2FEPOXY&rft.creator=Ahmad+Farid+Akram%2C+1515021044&rft.subject=620+Ilmu+teknik+dan+ilmu+yang+berkaitan&rft.description=Komposit+ialah+suatu+material+yang+terbentuk+oleh+campuran+dari+dua+atau+lebih%0D%0Amaterial+pembentuknya.+Carbon+nanotube+digunakan+sebagai+penguat+filler%0D%0Akomposit+yang+dapat+menambah+kekuatan+tarik+komposit+tersebut.+Namun+carbon%0D%0Ananotube+yang+didapat+dari+produsen+terdapat+pengotor+yang+dapat+mengurangi%0D%0Aadhesi+pada+matriks+yang+digunakan.+Penelitian+kali+ini+bertujuan+untuk%0D%0Amengetahui+pengaruh+perlakuan+permukaan+partikel+carbon+nanotube+(CNT)%0D%0Adengan+menggunakan+asam+nitrat+terhadap+kekuatan+tarik+komposit+hybrid+carbon%0D%0Afiber%2FCNT%2Fepoxy.%0D%0AKomposit+terbentuk+dari+pencampuran+carbon+fiber%2C+serbuk+penguat+filler+carbon%0D%0Ananotube%2C+dan+matriks+polimer+epoxy.+Serbuk+penguat+carbon+nanotube+dilakukan%0D%0Aperlakuan+permukaan+menggunakan+asam+nitrat+dengan+kadar+1+M%2C+3+M%2C+dan+5+M%0D%0Aselama+15+menit+diatas+hot+plate+magnetic+stirer.+Setelah+itu+dicuci+menggunakan%0D%0Ahidrogen+peroksida+30%25+selama+15+menit%2C+lalu+dibersihkan+dengan+aquades+dan%0D%0Adikeringkan.+Komposit+dilakukan+fabrikasi+dengan+fraksi+massa+0.5%25+CNT%2C+20%25%0D%0Acarbon+nanotube%2C+dan+79.5%25+epoxy+dengan+metode+vacuum+bagging.+Untuk%0D%0Amengetahui+sifat+mekanik+dari+komposit+hybrid+carbon+fiber%2FCNT%2Fepoxy+dilakukan%0D%0Apengujian+tarik+dengan+menggunakan+standar+ASTM+D638-03.+Selain+itu%0D%0Adilakukan+pengamatan+scanning+electron+microscope+untuk+mengetahui%0D%0Amekanisme+kegagalan+komposit+hybrid+carbon+fiber%2FCNT%2Fepoxy.%0D%0AHasil+pengujian+tarik+dengan+menggunakan+standar+ASTM+D638-03+komposit%0D%0Ahybrid+carbon+fiber%2FCNT%2Fepox.+Komposit+tertinggi+yaitu+carbon+fiber%2FCNT+dengan%0D%0Aperlakuan+asam+nitrat+1+M+mempunyai+nilai+tegangan+tarik+sebesar+42.23+MPa%2C+nilai%0D%0Aregangan+sebesar+17.84+%25+dan+nilai+modulus+elastisitas+sebesar+0.2368+GPa.%0D%0APada+hasil+pengamatan+menggunakan+scanning+electron+microscope+campuran%0D%0Aepoxy+dengan+CNT+yang+telah+dilakukan+perlakuan+permukaan+menggunakan+asam%0D%0Anitrat+1+M+memperlihatkan+adhesi+yang+lebih+baik+dibandingkan+dengan+perlakuan%0D%0Aasam+nitrat+3+M+dan+5+M.%0D%0A_________%0D%0AKata+kunci+%3A+komposit%2C+carbon+nanotube%2C+asam+nitrat%2C+uji+tarik%2C+scanning+electron%0D%0Amicroscope.%0D%0AComposite+is+a+material+formed+by+a+mixture+of+two+or+more+constituent+materials.%0D%0ACarbon+nanotubes+are+used+as+reinforcement+for+fillers+composite+which+can%0D%0Aincrease+the+tensile+strength+of+the+composite.+However%2C+carbon+nanotubes+obtained%0D%0Afrom+manufacturers+contain+impurities+that+can+reduce+adhesion+to+the+matrix+used.%0D%0AThis+study+aims+to+determine+the+effect+of+surface+treatment+of+particles+carbon%0D%0Ananotube+(CNT)+using+nitric+acid+on+the+tensile+strength+of+composites+hybrid%0D%0Acarbon+fiber%2FCNT%2Fepoxy.%0D%0AComposites+are+formed+by+mixing+carbon+fiber%2Creinforcing+powder+carbon+nanotube%0D%0Afiller%2C+and+a+polymer+matrix+epoxy.+The+Reinforcing+powder+was+carbon+nanotube%0D%0Asurface+treated+using+nitric+acid+with+levels+of+1+M%2C+3+M%2C+and+5+M+for+15+minutes+on%0D%0Aa+hot+plate+magnetic+stirrer.+After+that%2C+it+was+washed+using+30%25+hydrogen+peroxide%0D%0Afor+15+minutes%2C+then+cleaned+with+distilled+water+and+dried.+Composites+were%0D%0Afabricated+with+a+mass+fraction+of+0.5%25+CNT%2C+20%25+carbon+nanotubes%2C+and+79.5%25%0D%0Aepoxy+using+the+method+vacuum+bagging.+To+determine+the+mechanical+properties%0D%0Aof+composites+hybrid+carbon+fiber%2FCNT%2Fepoxy+tensile+tests+were+carried+out+using%0D%0Athe+ASTM+D638-03+standard.+In+addition%2C+observations+were+made+scanning%0D%0Aelectron+microscope+to+determine+the+failure+mechanism+of+the+composite+carbon%0D%0Afiber%2FCNT%2Fepoxy+hybrid.%0D%0ATensile+test+results+using+ASTM+D638-03+standard+composite+hybrid+carbon%0D%0Afiber%2FCNT%2Fepoxy.+The+highest+composite%2C+namely+carbon+fiber%2FCNT+with+1+M%0D%0Anitric+acid+treatment%2C+had+a+tensile+stress+value+of+42.23+MPa%2C+a+strain+value+of+17.84%0D%0A%25+and+a+modulus+of+elasticity+of+0.2368+GPa.%0D%0AIn+observations+using+a+scanning+electron+microscope%2C+a+mixture+of+epoxy+and+CNT%0D%0Athat+had+been+surface+treated+using+1+M+nitric+acid+showed+better+adhesion+than+3%0D%0AM+and+5+M+nitric+acid+treatment.%0D%0A_________%0D%0AKey+words%3A+composite%2C+carbon+nanotube%2C+nitric+acid%2C+test+pull%2C+scanning+electron%0D%0Amicroscope.&rft.publisher=FAKULTAS+TEKNIK&rft.date=2021&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F61844%2F1%2F1.%2520ABSTRAK%2520-%2520ABSTRACT%2520-%2520AHMAD%2520FARID%2520AKRAM.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F61844%2F3%2F2.%2520SKRIPSI%2520FULL%2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