CD Tugas Akhir

Pemanfaatan Wheat Starch Sebagai Alternatif Sizing Starch Terhadap Sifat Permukaan Kertas: Tensile Strength Dan Surface Strength

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ABSTRACT
Sizing starch is one of the additives in paper which serves to increase the
smoothness and strength of the paper surface. Nowadays, PT RAPP uses wheat as
a raw material for sizing starch due to a spike in tapioca prices so wheat is the
alternative. The selection of wheat as an alternative to tapioca is based on its
characteristics such as high starch content, high availability at low prices so that
it can meet production needs at low costs. And it is hoped that the quality of the
starch produced is also the same as tapioca starch. This observation is carried
out by taking secondary data from DCS (Distributed Control System) and
laboratory test results which are displayed in graphic form and will analyze the
relationship between the tested parameters. The parameters that influence the
success of starch modification are viscosity which can be controlled by enzyme
dose, cooking temperature, reaction time, and back pressure. Then, monitor the
effect of using wheat starch as a sizing starch on 80 gsm paper. The optimal
conditions to achieve the target starch viscosity are the enzyme dose of 0.4 kg/T
starch, pre-cooking temperature of 80oC, post-cooking temperature of 115oC,
reaction time of 26 minutes, and back pressure of 1.4 bar to achieve a starch
viscosity of 15 cp. When applied to 80 gsm paper, the results obtained tensile
index MD 77.23 Nm / g, CD tensile index 29.83 Nm / g, and surface strength with
an average wax serial number of 15.67. The results obtained meet the desired
targets. So it can be concluded that wheat is effectively used as an alternative to
sizing starch.
Keywords: additive, enzyme α-amylase, paper, starch, strength, viscosity

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

07 02. 021 (0054)

Penerbit

Pekanbaru : Universitas Riau – Fakultas Teknik - Teknologi Pulp Dan Kertas D III., 2021

Deskripsi Fisik

xii, 29 hlm.; ill.: 29 cm

Bahasa

Indonesia

ISBN/ISSN

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Klasifikasi

07 02. 021 (0054)

Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

TEKNIK KIMIA

Info Detail Spesifik

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Pernyataan Tanggungjawab

Daus

Versi lain/terkait

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