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All Journal Jurnal Abdi Insani Jurnal Teknologi Kimia Unimal
Masruroh, Putri
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PENINGKATAN NILAI GUNA SAMPAH PLASTIK NON EKONOMIS SEBAGAI BAHAN DASAR PEMBUATAN PAVING BLOCK DI TPS3R DESA TELUKJAMBE Kusuma, Anis Mustaghfirin; Bunga, Venny Ulya; Huda, Syamsul; Pambudi, Teguh; Masruroh, Putri; Umam, Hilman Imadul
Jurnal Abdi Insani Vol 12 No 11 (2025): Jurnal Abdi Insani
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/abdiinsani.v12i11.2942

Abstract

Telukjambe Village as an industrial buffer area faces complex waste management problems where only 29% of 1200 tons of daily waste in Karawang is transported to the landfill. This condition causes accumulation of non-economic plastic waste at TPS3R which remains unoptimized and potentially pollutes the environment. This community service activity aims to improve the knowledge and skills of TPS3R operators in processing non-economic plastic waste into paving blocks. The implementation methods include field observation and literature study to identify partner needs. Furthermore, demonstration workshops and hands-on practice of paving block production were conducted with evaluation using pre-test/post-test and N-Gain analysis. The results showed a 74.4% participant participation rate in all practical stages. There was a 26.67% increase in knowledge measured through pre-test and post-test. N-Gain analysis showed 33.3% of participants experienced very significant improvement and 66.7% showed fairly significant improvement. Participant enthusiasm was also very high during the practical sessions as seen from active engagement in discussions. The conclusion indicates that this activity successfully enhanced the capacity of TPS3R operators in processing non-economic plastic waste into economically valuable products. This success is marked by the achievement of knowledge improvement and active participation of participants.
Optimasi Proses Crosslinking Hidrogel berbasis PVA dan Gelatin sebagai Biomaterial Ramah Lingkungan Masruroh, Putri; Arvinda Rakhman, Selly
Jurnal Teknologi Kimia Unimal Vol. 14 No. 2 (2025): Jurnal Teknologi Kimia Unimal - November 2025
Publisher : Chemical Engineering Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/jtku.v14i2.25086

Abstract

Penelitian ini mencari kondisi optimum crosslinking hidrogel dari PVA dan gelatin dengan penambahan asam sitrat sebagai chemical crosslinking dan proses freeze-thaw sebagai physical crosslinking. PVA dan gelatin dapat berikatan silang membentuk struktur 3 dimensi yang mampu mengikat air. Hidrogel PVA-Gelatin merupakan hidrogel hybrid yang ramah lingkungan karena sifatnya yang mudah terurari. Untuk meningkatkan sifat mekanik dari hidrogel PVA-Gelatin diperlukan mekanisme crosslinking yang optimum. Kondisi optimum terjadi pada komposisi PVA 10% dan gelatin 10% dengan penambahan asam sitrat dan freeze-thaw tiga siklus menghasilkan hidrogel yang secara visual lentur, tidak mudah sobek dan memiliki swelling ratio 9,47-14,65. Analisis FT-IR menunjukkan terbentuknya ikatan silang antara gugus hidroksil PVA-Gelatin dan gugus karboksilat asam sitrat, yang mengonfirmasi keberhasilan proses crosslinking.
Co-Authors Arvinda Rakhman, Selly Kusuma, Anis Mustaghfirin Syamsul Huda Teguh Pambudi, Teguh Venny Ulya Bunga