Jurnal Teknik Kimia USU
Vol. 11 No. 1 (2022): Jurnal Teknik Kimia USU

Pengaruh Konsentrasi Ekstrak Buah Belimbing Wuluh (Averrhoa bilimbi) sebagai Koagulan Alami terhadap Karakteristik Karet Klon PB 260

Feerzet Achmad (Institut Teknologi Sumatera)
Devita Amelia (Institut Teknologi Sumatera)
Ayu Pratiwi (Institut Teknologi Sumatera)
Laila Wahyu Saputri (Institut Teknologi Sumatera)
Deviany (Institut Teknologi Sumatera)
Reni Yuniarti (Institut Teknologi Sumatera)
Suhartono (Universitas Jenderal Achmad Yani)
Suharto (LIPI UPT Balai Pengolahan Mineral Lampung)



Article Info

Publish Date
21 Mar 2022

Abstract

Averrhoa bilimbi is a plant rich in benefits, one of which as natural coagulant. The aim of this research is to increase the potential of Averrhoa bilimbi as an environmentally friendly natural coagulant for the coagulation of rubber clone PB 260. The concentrations of Averrhoa bilimbi used were 45%, 55%, 65%, 75% and 85%. The characteristics of the rubber tested were dry rubber content (DRC), initial plasticity (Po) and Plasticity Retention Index (PRI). Based on the results of this study, the optimum concentration of Averrhoa bilimbi is 85% for latex coagulation time of 11 minutes with 33% DRC, 41% Po and 97% PRI. The highest the concentration of Averrhoa bilimbi used, the faster the coagulation process occurred. 2% formic acid was used as a chemical coagulant for comparison. From the results of this study, it can be concluded that Averrhoa bilimbi can be used as a natural coagulant producing rubber characteristics equal in quality as the ones using formic acid as a chemical coagulant and meets Indonesian Rubber Standard SNI 06-1903-2000.

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Journal Info

Abbrev

jtk

Publisher

Subject

Chemical Engineering, Chemistry & Bioengineering Chemistry Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology

Description

Jurnal Teknik Kimia USU merupakan jurnal elektronik yang mempublikasikan karya ilmiah di bidang teknik kimia yang diterbitkan oleh Departemen Teknik Kimia, Fakultas Teknik, Universitas Sumatera Utara. Jurnal ini tidak terbatas pada mahasiswa dan dosen Universitas Sumatera Utara, tetapi terbuka untuk ...