?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=PENGARUH+PENAMBAHAN+POLIETILEN+GLIKOL+(PEG)+PADA%0D%0ACAMPURAN+POLI+ASAM+LAKTAT+DENGAN+SELULOSA+DARI+%0D%0ALIMBAH+PADAT+TAPIOKA%0D%0A&rft.creator=Shela+Anggun+Septiana%2C+1317011065&rft.subject=QD+Chemistry&rft.description=ABSTRAK%0D%0A%0D%0APada+penelitian+ini+telah+dilakukan+isolasi+selulosa+dari+limbah+padat+tapioka+(onggok)+dan+pencampuran+antara+poli+asam+laktat+(PAL)+sebagai+polimer+sintetik+dan+selulosa+sebagai+polimer+alam.++PAL+dan+selulosa+tidak+homogen+sehingga+terjadi+pemisahan+saat+pencampuran.++Untuk+memperbaiki+stabilitas+dan+kompatibilitas+kedua+bahan+digunakan+polietilen+glikol+(PEG)+sebagai+plasticizer.+Proses+isolasi+selulosa+menghasilkan+10+gram+dari+75+gram+sampel+menggunakan+metode+delignifikasi.++Selulosa+diproses+dengan+metode+delignifikasi+untuk+mendapatkan+kadar+%CE%B1-selulosa+yang+baik+yaitu+94%2C23%25.++Karakterisasi+dilakukan+dengan+analisis+FTIR%2C+SEM%2C+dan+TGA%2FDTA.++Pada+analisis+IR%2C+spektrum%0D%0Acampuran+selulosa-PEG-PAL+sedikit+bergeser+ke+bilangan+gelombang+yang+lebih+rendah+jika+dibandingkan+dengan+campuran+selulosa-PAL.++Hal+ini+diakibatkan+karena+gugus+C-O-C+dan+-OH+dari+PEG+dapat+membentuk+ikatan+hidrogen+atau+interaksi+dipolar+dengan+selulosa-PAL.++Pada+analisis+SEM%2C+dengan+penambahan+PEG+mengakibatkan+morfologi+permukaan+campuran+selulosa-PAL+menjadi+semakin+tidak+merata+yang+menandakan+bahwa+sifat+mekanik+material+semakin+baik%2C+dan+uji+dekomposisi+menggunakan+TGA%2FDTA+menunjukkan+bahwa+campuran+selulosa-PAL+(1%3A5+w%2Fw)+memiliki+kestabilan+termal+yang+paling+rendah+dan+campuran+selulosa-PEG-PAL+(1%3A1%2C0%3A5+w%2Fw)+memiliki+kestabilan+paling+tinggi.%0D%0A%0D%0A%0D%0A%0D%0AKata+Kunci+%3A+Limbah+Padat+Tapioka%2C+Selulosa%2CPolietilen+Glikol+(PEG)%2C+Poli%0D%0AAsam+Laktat+(PAL)%0D%0A%0D%0A%0D%0AABSTRACT%0D%0A%0D%0AIn+this+study%2C+cellulose+had+been+isolated+from+tapioca+solid+waste+and+poly+lactic+acid+(PLA)+as+a+synthetic+polymer+had+been+mixed+with+cellulose+as+a+natural+polymer.+++At+the+time+of+mixing%2C+PLA+and+cellulose+couldn%E2%80%99t+be+homogeneous%2C+and+there+was+separation+of+both.++Because+of+that+polyetylen+glycol+(PEG)+was+used+as+a+plasticizer+to+improve+the+stability+and+compatibility+of+both+materials.+The+yield+of+delignification+cellulose+was+10+grams+from+75+grams+of+sample.+Cellulose+was+processed+by+delignification+method+to+get+a+good+%CE%B1-cellulose+that+yield+was+94.23%25.+++Characterization+was+performed+by+using+FTIR%2C+SEM%2C+and+TGA%2FDTA++analysis.+++++In++the++FTIR++analysis%2C++the++cellulose-PEG-PLA++mixed+spectrum+slightly+shifted+to+a+lower+wave+number+than+a+PLA-cellulose+mixture.+This+indicates+that+the+C-O-C+and+-OH+groups+of+PEG+may+form+hydrogen+bonds+or+dipolar+interactions+with+cellulose-PLA.++In+SEM+analysis%2C+the+addition+of+PEG+was+causing+morphological+change%2C+to+be+unevenly+which+indicate+that+the+mechanical+properties+of+the+material+was+improved%2C+and+the+decomposition+test+using+TGA%2FDTA+showed+that+the+cellulose-PLA+(1%3A5+w%2Fw)was+to+be+the+lowest+thermal+stability+and+cellulose-PEG-PAL+(1%3A1.0%3A5+w%2Fw)+was+to+be+highest+thermal+stability.%0D%0A%0D%0A%0D%0A%0D%0AKeyword%3A++Solid++Waste++Tapioca%2C++Cellulose%2C++Polyethylene++Glycol++(PEG)%2C+Poly+Lactic+Acid+(PAL)%0D%0A&rft.publisher=FAKULTAS+MATEMATIKA+DAN+ILMU+PENGETAHUAN+ALAM&rft.date=2017-07-11&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F27478%2F1%2FABSTRAK.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F27478%2F2%2FSKRIPSI%2520FULL.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F27478%2F3%2FSKRIPSI%2520TANPA%2520BAB%2520PEMBAHASAN.pdf&rft.identifier=++Shela+Anggun+Septiana%2C+1317011065++(2017)+PENGARUH+PENAMBAHAN+POLIETILEN+GLIKOL+(PEG)+PADA+CAMPURAN+POLI+ASAM+LAKTAT+DENGAN+SELULOSA+DARI+LIMBAH+PADAT+TAPIOKA.++FAKULTAS+MATEMATIKA+DAN+ILMU+PENGETAHUAN+ALAM%2C+UNIVERSITAS+LAMPUNG+.+++++&rft.relation=http%3A%2F%2Fdigilib.unila.ac.id%2F27478%2F