Sintesis Nanokomposit Limbah Nilon/ZnO Sebagai Bahan Baku Pembuatan Benang Nilon
Abstract
Pemanfaatan limbah nilon sebagai bahan baku alternatif mendukung circular
economy dan pengembangan polimer berkelanjutan. Penelitian ini bertujuan untuk
sintesis nanokomposit nilon/ZnO dari limbah nilon serta analisis sifat fisiko-kimia
yang menentukan kualitas benang nilon. Metode pengukuran meliputi kadar amina,
viskositas relatif, titik leleh, serta karakterisasi struktur dan morfologi melalui FTIR
dan SEM. Kadar amina meningkat dari 78,050 mmol/kg (kontrol) menjadi 103,997
mmol/kg (0,5 g ZnO), sedangkan viskositas relatif tercatat 41,94 - 49,43 cSt. Titik
leleh bergeser dari 261,50 °C (kontrol) menjadi 266,90 °C (1,5 g ZnO),
menunjukkan peningkatan stabilitas termal. Spektrum FTIR memperlihatkan pita
serapan khas Zn-O serta perubahan intensitas gugus amina yang menandakan
interaksi ZnO dengan poliamida. Simpulan penelitian yaitu adanya perbedaan
signifikan antarformulasi, sehingga penambahan ZnO berpengaruh nyata terhadap
sifat kimia dan termal nanokomposit nilon The utilization of nylon waste as an alternative raw material supported the concept
of a circular economy and the development of sustainable polymers. This study
aimed to synthesize nylon/ZnO nanocomposites from nylon waste and to analyze the
physicochemical properties determining the quality of nylon yarn. Measurement
methods included amine content, relative viscosity, melting point, and structural and
morphological characterization using FTIR and SEM. The amine content increased
from 78.050 mmol/kg (control) to 103.997 mmol/kg (0.5 g ZnO), while the relative
viscosity ranged from 41.94 to 49.43 cSt. The melting point shifted from 261.50 °C
(control) to 266.90 °C (1.5 g ZnO), indicating an improvement in thermal stability.
The FTIR spectrum showed characteristic Zn-O absorption bands and changes in
amine group intensity, confirming interactions between ZnO and polyamide chains.
The study concluded that there were significant differences among formulations,
indicating that ZnO addition had a notable effect on the chemical and thermal
properties of the nylon nanocomposites.
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