| dc.contributor.advisor | Heryanto, Rudi | |
| dc.contributor.author | Hidayat, Fikri Alwi | |
| dc.date.accessioned | 2026-08-14T03:40:04Z | |
| dc.date.available | 2026-08-14T03:40:04Z | |
| dc.date.issued | 2026 | |
| dc.identifier.uri | http://repository.ipb.ac.id/handle/123456789/178550 | |
| dc.description.abstract | Penelitian ini bertujuan mengevaluasi pengaruh jenis dan komposisi filler
terhadap sifat optik dan mekanik kertas high bulky. Penelitian dilakukan
menggunakan campuran pulp LBKP 75:25 dengan target kadar abu 23–24%.
Variasi filler meliputi TiO2, CaCO3, bentonit, dan campuran bentonite-CaCO3.
Pengujian mencakup distribusi ukuran partikel filler, parameter wet-end dan dry
end, opasitas, kekuatan mekanik, serta ketahanan air. Hasil penelitian menunjukkan
bahwa jenis dan komposisi filler memengaruhi performa kertas. TiO2 menghasilkan
opasitas tertinggi, sedangkan CaCO3 memberikan keseimbangan antara sifat optik
dan mekanik. Bentonit mampu meningkatkan retensi dan mendukung struktur bulky
kertas, tetapi meningkatkan daya serap air. Formulasi Bentonit 70:30 diperoleh
sebagai komposisi terbaik dengan opasitas kering 93,61%, kekuatan tarik 1,555
kN/m, dan combined desirability 0,663. Campuran bentonit dan CaCO3 berpotensi
mengurangi penggunaan TiO2 karena mampu menjaga keseimbangan antara
opasitas, kekuatan mekanik, dan keterbalan kertas | |
| dc.description.sponsorship | This study aimed to evaluate the effect of filler type and composition on the
optical and mechanical properties of high bulky paper. The research used an LBKP
pulp mifxture at a ratio of 75:25 with an ash content target of 23–24%. The filler
variations included TiO2, CaCO3, bentonite, bentonite mixtures, and TiO2 mixtures.
The tests covered filler particle size distribution, wet-end and dry-end parameters,
opacity, mechanical strength, and water resistance. The results showed that filler
type and composition affected paper performance. TiO2 produced the highest
opacity, while CaCO3 provided a balance between optical and mechanical
properties. Bentonite improved filler retention and supported the bulky paper
structure, but increased water absorption. The bentonite3 70:30 formulation was
identified as the best composition, with a dry opacity of 93.61%, tensile strength of
1.555 kN/m, and combined desirability of 0.663. The bentonite and CaCO3 mixture
has potential to reduce TiO2 usage because it can maintain the balance between
opacity, mechanical strength, and the bulky structure of high bulky paper. | |
| dc.language.iso | id | |
| dc.publisher | IPB University | id |
| dc.title | Efektivitas Filler Bentonit-CaCO3 Sebagai Substitusi TiO2 Terhadap Opasitas Kering dan Sifat Kekuatan Kertas High Bulky. | id |
| dc.title.alternative | Effectiveness of Bentonite-CaCO3 Filler as a Partial Substitute for TiO2 on Dry Opacity and Strength Properties of High Bulky Paper. | |
| dc.type | Tugas Akhir | |
| dc.subject.keyword | bentonit | id |
| dc.subject.keyword | TiO2 | id |
| dc.subject.keyword | dry opacity | id |
| dc.subject.keyword | kertas high bulky | id |
| dc.subject.keyword | strength properties | id |
| dc.subtype | Undergraduate Theses | |
