Pengaruh Variasi Ekstrak Gambir Dalam Pembuatan Tinta Spidol Whiteboard Ramah Lingkungan

Authors

  • Hilwa Anisa Universitas Islam Negeri Sumatera Utara
  • Masthura Masthura Universitas Islam Negeri Sumatera Utara
  • Ratni Sirait Universitas Islam Negeri Sumatera Utara

DOI:

https://doi.org/10.25077/jfu.13.3.315-321.2024

Keywords:

Ekstrak Gambir, Pigmen, Tinta Spidol

Abstract

Gambir  memiiki  senyawa utama yaitu katekin (7% - 33%) dan  tanin  ( 22% -50%)  hingga gambir dapat  dijadikan  sebaga  zat warna pada  penyusunan  tinta spidol  whiteboard  ramah lingkungan  dengan nilai senyawa organik volatil  (VOC)  yang rendah .  Tujuan dari penelitian ini untuk  mencari  hasil tinta yang optimal  dengan  variasi  sampel  ekstrak gambir yaitu  A  (65% ), B ( 70% )  dan C ( 75%) .  Seluruh variasi di campur dengan 25% aquades, 5%  propylen glikol  dan 5% polietilen glikol (PEG)  menggunakan  alat  magnetic stirrer  diatas hot plate dengan waktu 30 menit,  kecepatan 1000 rpm  dan suhu 40 . Kemudian sampel diuji menggunakan  alat viskometer  ostwald , neraca  analitik  dan pH meter . Parameter uji berupa uji  pigmen dan uji  fisis  meliputi : nilai densitas, nilai viskositas dan pH . Penyusunan  tinta dikerjakan melalui  sejumlah proses  yaitu  bahan utam a  gambir  yang telah  dibersihkan menggunakan udara ,  penghalusan gambir dan pencampuran gambir dengan air panas 80  - 90 ,  penyaringan dan  pengendapan gambir  selama satu malam ,  pengkstrakan  gambir  dengan dimaserasi selama satu hari satu malam , pembuatan pigmen warna dan  pembuatan formula tinta . Hasil penelitian  mendapatkan nilai t optimum pada sampel A ( 75% )  yaitu memiliki nilai densitas 1,088 g/ , nilai viskositas 2,44 cP, nilai pH  8,27 dengan warna yang lebih pekat.              

References

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Published

2024-05-01

How to Cite

Anisa, H., Masthura, M., & Sirait, R. (2024). Pengaruh Variasi Ekstrak Gambir Dalam Pembuatan Tinta Spidol Whiteboard Ramah Lingkungan. Jurnal Fisika Unand, 13(3), 315–321. https://doi.org/10.25077/jfu.13.3.315-321.2024

Issue

Vol. 13 No. 3 (2024)

Section

Articles

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