CD Skripsi

Modifikasi Bioplastik Berbasis Pati Sagu-Polivinil Alkohol (Pva) Dengan Cross-Linking Agent Asam Sitrat Dan Pemplastis Gliserol

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Bioplastic characteristics are influenced by various parameters, including levels
of cross linking agents (such as citric acid) and plasticizers (such as glycerol).
The purpose of this study was to study the effect of citric acid and glycerol levels
on mechanical properties, cross linking (characterized by ester groups), water
uptake and biodegradation of starch-polyvinyl alcohol (PVA) -based bioplastics.
Bioplastic manufacturing is done by mixing sago-PVA starch (1: 3), glycerol (10,
15, 20% w / w) and citric acid (2.5; 5; 7.5% w / w) at 90ºC for 45 ° C minutes,
optimization of process conditions is determined by response surface methodology
(RSM). The parameters tested include tensile strength test, elongation, modulus
young, water uptake, biodegradation, FTIR. The most significant factor affecting
all responses was the level of citric acid and glycerol. The optimum process
conditions were obtained at 7.5% w / citric acid content and glycerol 19.63% w /
w with a tensile strength response of 21 MPa, elongation 566.6%, young modulus
3.69 MPa, water uptake 82.95% and 55.63% biodegradation. The results of FTIR
analysis showed that there was cross-linking in the wave 1722.51 cm-1 which was
marked by the formation of the ester group.
Keywords: bioplastics, citrid acid, glycerol, polyvinyl alcohol, sago starch, RSM

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

07 02. 120 (0007)

Penerbit

Pekanbaru : Universitas Riau – Teknik - Kimia., 2020

Deskripsi Fisik

xiv. 60 hlm.: ill: 29 cm

Bahasa

Indonesia

ISBN/ISSN

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Klasifikasi

07 02. 120 (0007)

Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

-

Subjek

TEKNIK KIMIA

Info Detail Spesifik

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Pernyataan Tanggungjawab

Asmawati

Versi lain/terkait

Lampiran Berkas

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