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Andri Cahyo Kumoro
Department Of Chemical Engineering, Faculty Of Engineering, Diponegoro University
Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences Transportation Other

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Journal : Emerging Science Journal

 1 
Response Surface Methodology for Formulating PVA/Starch/Lignin Biodegradable Plastic Ratnawati Ratnawati; Retno Wulandari; Andri Cahyo Kumoro; Hadiyanto Hadiyanto
Emerging Science Journal Vol 6, No 2 (2022): April
Publisher : Ital Publication

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28991/ESJ-2022-06-02-03

Abstract

The use of petroleum-based plastics has raised environmental issues as more plastic waste enters and accumulates in the environment. It has led to the development of biodegradable plastics. Starch is one of the potential materials to make biodegradable plastic, but starch-based plastic has poor mechanical strength. Blending starch with poly(vinyl alcohol) (PVA) and lignin is expected to improve the mechanical properties of the plastic. Biodegradable plastic films from PVA/starch/lignin blends with glycerol as a plasticizer were prepared using an internal mixer for compounding and a hot press molding machine for film making. The percentage of lignin (2-10%), glycerol (25-65%), and mixing temperature (190-230 oC) were varied according to the three levels of the Box-Behnken design. The ANOVA evaluation revealed that glycerol had the most significant effect on the mechanical properties of the film. Then, three models for the estimation of tensile strength, elongation at break, and tear resistance were developed. As expected, the models satisfactorily predict the effect of all input variables on the response variables. The optimum conditions for preparing the film were acquired from the equations, namely 197.6 oC for the temperature, 10% for lignin, and 45.1% for glycerol. The biodegradable plastic prepared using the optimum conditions possessed a tensile strength of 8.46 ± 1.08 MPa, an elongation at break of 139.00 ± 8.59%, and a tear resistance of 69.50 ± 2.50 N/mm. These values are in good agreement with the predicted values. Doi: 10.28991/ESJ-2022-06-02-03 Full Text: PDF
Co-Authors . Widayat Adi Cifriadi Adi Cifriadi, Adi Agus Suprihanto Aji Prasetyaningrum Alfariji, Moh Ana Farida Aprilina Purbasari Ardianingsih, Retno Arkie Septiana A. Arkie Septiana A. Aryanti, Nita Asep Muhamad Samsudin, Asep Muhamad Asron Ferdian Falaah Asron Ferdian Falaah, Asron Ferdian Avriliana Dewi A. Bakti Jos Bakti Jos Budiyono Budiyono C Sri Budiyati Catarina Sri Budiyati Catarina Sri Budiyati Catarina Sri Budiyati Cindi Yasintasia Dessy Ariyanti Diah Permata Wijayanti Diah Susetyo Retnowati Didi Dwi Anggoro Dwi Haryanti Dyah Hesti Wardhani Evi Ristanti R F Widhi Mahatmanti Fahni, Yunita Ferry Hermawan Fitra Pradhita Frans Arienata H. Frans Arienata H. Frastia, Wike H Hadiyanto H. Hargono Hacker, Viktor Hargono . Hargono Hargono Hargono Hargono Kamil, Muhamad Idham Kristinah Haryani Kurniawan, Tonni Agustiono Laeli Kurniasari M. Djaeni Maharani Ratridewi Marcelinus Christwardana Margaretha Praba Aulia Marissa Widiyanti Masitah Hasan Misbahudin Alhanif Moh Djaeni Monica Setiono H. Muhammad Haqqiyuddin Robbani Mustafa Nafiunisa, Aininu Nasher, Kharissa Nita Aryanti Nor Basid Adiwibawa Prasetya Nur Rokhati Nurul Aini Pamungkas, Prihantoro Pandapotan, Boris Poltak Permanadewi, Indrasukma Putra, Ade Septia Ratnawati Ratnawati Retno Wulandari Riris Yuliana Y.S. Rizka Amalia Rizka Amalia Rizka Amalia Roschger, Michaela Saputri, Desi Riana Setia Budi Sasongko Silviana Silviana Sofiah Sofiah Sri Sinto Dewi Sulardjaka Sumardi Sumardi Tutuk Djoko Kusworo Utami, Esti Utomo, Dani Puji Wahyono, Yoyon Wahyudi, Dhiky Wardhani, Dyah Hesti Wikanastri Hersoelistyorini Wilis Ari Setyati Yuni Susanti, Devi Yusupandi, Fauzi Zahra, Nurul Afifah Zaim, Hanif Fawwaz