CD Skripsi

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

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ABSTRACT
Bioplastic characteristics are influenced by various parameters, including levels
of cross linking agents (such as citric acid) and plasticizers (such as sorbitol). The
purpose of this study was to study the effect of citric acid and sorbitol 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), sorbitol (10,
15, 20% w / w) and citric acid (2.5; 5; 7.5% w / w) at 90ºC for 55 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 sorbitol. The optimum process
conditions were obtained at 11.40% w / w sorbtiol content and citric acid 4.8% w
/ w with a tensile strength response of 26.34 MPa, elongation 379%, young
modulus 10.40 MPa, water uptake 77.10% and 49.18% biodegradation. The
results of FTIR analysis showed that there was cross-linking in the wave 1710.93
cm-1 which was marked by the formation of the ester group.
Keywords: bioplastics, citrid acid, sorbitol, polyvinyl alcohol, sago starch, RSM

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

07 02. 120 (0172)

Penerbit

Pekanbaru : Universitas Riau – Fakultas Teknik – Teknik Kimia., 2020

Deskripsi Fisik

ix, 79 hlm.; ill.: 29 cm

Bahasa

Indonesia

ISBN/ISSN

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Klasifikasi

07 02. 120 (0172)

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

Lampiran Berkas

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