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Jumiati, Ety
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Journal : JOURNAL OF SCIENCE AND SOCIAL RESEARCH

 1 
PENINGKATAN NILAI UJI BULK DAN NILAI DAYA REGANG PADA MUTU KERTAS CETAK A Hayat, Lisa Fadhilah; Jumiati, Ety; Husnah, Miftahul
JOURNAL OF SCIENCE AND SOCIAL RESEARCH Vol 9, No 1 (2026): February 2026
Publisher : Smart Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54314/jssr.v9i1.5718

Abstract

Abstract: This study was conducted to determine the improvement of bulk and elongation in Printing Paper A made from cassava peel and oil palm fiber. Using an experimental method and a quantitative approach, the material composition variations were as follows: sample A (80%:20%), sample B (60%:40%), sample C (40%:60%), and sample D (20%:80%). The pulp-making process was carried out with chemical treatment using 3% NaOH and 3.5% HNO₃ solutions, followed by bleaching with 10% H₂O₂, then dried and formed into paper sheets. Characterization was conducted based on SNI 7274:2008. The bulk test results were 1.073 cm³/g for sample A, 1.088 cm³/g for sample B, 1.090 cm³/g for sample C, and 1.096 cm³/g for sample D. The elongation results were 1.589% for sample A, 0.682% for sample B, 2.800% for sample C, and 2.800% for sample D. This study shows that the higher the proportion of oil palm fiber, the more significant the contribution to the increase in bulk and elongation values of the paper. Keyword: Bulk, Cassava Peel, Elongation, Palm Fiber, Paper Abstrak: Penelitian ini dilakukan untuk menentukan peningkatan bulk dan daya regang pada kertas cetak A berbahan kulit ubi dan serat sawit. Dengan menggunakan metode eksperimen dan pendekatan kuantitatif, variasi komposisi bahan adalah sebagai berikut: sampel A (80%:20%), sampel B (60%:40%), sampel C (40%:60%), dan sampel D (20%:80%). Proses pembuatan pulp dilakukan dengan perlakuan kimia menggunakan larutan NaOH 3% dan HNO₃ 3,5%, dilanjutkan dengan pemutihan menggunakan H₂O₂ 10%, kemudian dikeringkan dan dicetak menjadi lembaran kertas. Karakterisasi dilakukan berdasarkan SNI 7274:2008. Hasil uji bulk adalah 1,073 cm3/g untuk sampel A, 1,088 cm3/g untuk sampel B, 1,090 cm3/g untuk sampel C, dan 1,096 cm3/g untuk sampel D. Hasil daya regang adalah 1,589% untuk sampel A, 0,682% untuk sampel B, 2,800% untuk sampel C, dan 2,800% untuk sampel D. Penelitian ini menunjukkan bahwa semakin tinggi peningkatan proporsi serat sawit memberikan kontribusi signifikan terhadap kenaikan nilai bulk dan daya regang kertas. Kata kunci: Bulk, Daya Regang, Kertas, Kulit Ubi, Serat Sawit
Co-Authors ., Masthura Abdul Halim Daulay Adiani Nasution, Arfa Ananda, Putri Dwi Aruan, Ririn sagita Azmi, Afifah Br Lubis, Lailatul Husna Dimas Pratama, Dimas Harahap, Nurlaila Sari Harahap, Sarah Aprilia Hayat, Lisa Fadhilah Husna Br. Lubis, Lailatul Hutauruk, Siti Aulia Khairunnisa, Umi Khairunnisa khofifahparawansyah, khofifah Lubis, Fadilah Azzahra Lubis, Ridwan Yusuf Masthura, Masthura Masturah, Masturah Miftahul Husnah Mughiroh, Hafizul Nabilah, Cinthia Farah Nanda, Meutia Nasution, Annisa Salsha Safira Nasution, Annisa Wulan Dhari Nasution, Nazaruddin Ningsih, Mulia Noviansyah, Kiki Nurfebia, Karina Pratiwi, Pebi Ajeng Rachmaini, Alya Rani Saputri Ratni Sirait, Ratni Sari, Devi Kumala Sariah, Jati Nur Silalahi, Homsiah Mayang Sari Siti Munawaroh Siti Putri Masyitah Srg, Dini Anggraini Suci, Suci Amanda Sulkha, Amalia Tambunan, Efrida Pima Sari Tiara, Finky Manda Umairoh, Ninda