Update Artikelilmiah: 51854

M. SHANDY ALTHOF

NIM

Judul Artikel

Abstrak (Bhs. Indonesia)

Peningkatan penggunaan plastik konvensional yang sulit terurai mendorong pengembangan bioplastik sebagai alternatif material ramah lingkungan. Penelitian ini bertujuan untuk menganalisis pengaruh penambahan sorbitol sebagai plasticizer dan serat nanoselulosa sebagai bahan penguat terhadap sifat fisik, mekanik, dan biodegradabilitas bioplastik berbasis polivinil alkohol (PVA) dan pati sagu. Penelitian menggunakan Rancangan Acak Lengkap (RAL) dua faktor, yaitu konsentrasi sorbitol (0%, 1%, dan 2%) dan serat nanoselulosa (0%, 2%, dan 4%). Parameter yang diuji meliputi ketebalan, laju transmisi uap air (WVTR), transparansi, kuat tarik, elongasi, dan biodegradabilitas, dengan analisis data menggunakan ANOVA dua arah dan uji DMRT pada taraf kepercayaan 95%. Hasil menunjukkan bahwa sorbitol berpengaruh nyata meningkatkan ketebalan, WVTR, dan elongasi, serta menurunkan kuat tarik. Serat nanoselulosa berpengaruh nyata meningkatkan ketebalan dan kuat tarik, serta menurunkan transparansi. Interaksi kedua faktor berpengaruh nyata terhadap ketebalan dan kuat tarik, namun tidak terhadap WVTR dan elongasi. Seluruh sampel mengalami degradasi secara visual pada uji penguburan tanah, sehingga bioplastik berbasis PVA dan pati sagu berpotensi dikembangkan sebagai material kemasan ramah lingkungan.

Abtrak (Bhs. Inggris)

The increased use of conventional plastics, which are difficult to decompose, has driven the development of bioplastics as an environmentally friendly material alternative. This study aims to analyze the effect of adding sorbitol as a plasticizer and nanocellulose fibers as reinforcing materials on the physical, mechanical, and biodegradability properties of bioplastics based on polyvinyl alcohol (PVA) and sago starch. The study used a two-factor Completely Randomized Design (CRD), namely the concentration of sorbitol (0%, 1%, and 2%) and nanocellulose fibers (0%, 2%, and 4%). The parameters tested included thickness, water vapor transmission rate (WVTR), transparency, tensile strength, elongation, and biodegradability, with data analysis performed using two-way ANOVA and DMRT tests at a 95% confidence level. The results showed that sorbitol had a significant effect in increasing thickness, WVTR, and elongation, while reducing tensile strength. Nanocellulose fibers had a significant effect in increasing thickness and tensile strength, while reducing transparency. The interaction of the two factors had a significant effect on thickness and tensile strength, but not on WVTR and elongation. All samples visually degraded in the soil burial test, indicating that PVA- and sago starch-based bioplastics have the potential to be developed as environmentally friendly packaging materials.

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