Analisis Termal Gravimetri Film Paduan Gelatin Kulit Ikan Pari (Himantura gerrardi) dan Kitosan Cangkang Udang Windu (Penaeus monodon)

Halim, Abdul (2011) Analisis Termal Gravimetri Film Paduan Gelatin Kulit Ikan Pari (Himantura gerrardi) dan Kitosan Cangkang Udang Windu (Penaeus monodon). Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Penguapan air dan degradasi termal suatu bahan, seperti film paduan gelatin ikan pari dan kitosan udang windu, dapat dianalisis menggunakan termal gravimetri. Film dianalisa secara termal gravimetri dengan variasi konsentrasi paduan, yaitu GI 3% - Ch 3%, GI 3% - Ch 4%, dan GI 4% - Ch 3%. Film paduan tersebut ditambahkan bahan aditif seperti sorbitol dan gliserol sebagai plasticizer. Tahap penguapan air pada GI 3%-Ch 3%, GI 3%-Ch 4%, dan GI 4%-Ch 3% secara berurutan yaitu dimulai pada suhu 32,92°C; 32,27°C; dan 29,98°C. Sedangkan tahap degradasi termal pertama pada GI 3% - Ch 3%, GI 3%-Ch 4%, dan GI 4%-Ch 3% secara berurutan dimulai pada suhu 129,04°C; I38,82°C; dan 128,98°C. Tahap degradasi termal yang pertama ini merupakan degradasi sebagian molekul kitin yang belum terdeasetilasi. Tahap degradasi termal kedua pada GI 3% - Ch 3%, GI 3%-Ch 4%, dan GI 4%-Ch 3% secara berurutan dimulai pada suhu 255,24°C; 265,03°C; dan 261,94°C. Tahap degradasi kedua ini merupakan tahap degradasi cincin sakarida dan rantai polimer dari kitosan dan gelatin. Film paduan GI 3%-Ch 4% mempunyai titik degradasi termal yang lebih tinggi daripada film paduan GI 3%-Ch 3% dan GI 4%-Ch 3%.
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Water vaporization and thermal degradation of material like blend film of fish gelatine and chitosan shrimp shells, can be analyzed using thermal gravimetric. Films were analyzed by thermal gravimetric with blend concentration variations, ie GI 3% - Ch 3%, GI 3% - Ch 4%, and GI 4% - Ch 3%. The blend film added with additives such as sorbitol and glycerol as a plasticizer. The start stages of water evaporation at GI 3%-Ch 3%, GI 3%-Ch 4%, and GI 4%-Ch 3% sequentially which occurs at a temperature of 32,92°C; 32,27°C; dan 29,98°C, respectively. While the first stage of thermal degradation in the GI 3%-Ch 3%, GI 3%-Ch 4%, and GI 4%-Ch 3% sequentially occur at 129,04°C; 138,82°C; and 128,98°C. The next step is second degradation of GI 3%-Ch 3%, GI 3%-Ch 4%, and GI 4%-Ch 3% . Degradation occurred at 129,04°C; 138,82°C; and 128,98°C. Blend film of GI 3%-Ch 4% have degradation point higher than blend film of GI 3%-Ch 3% dan GI 4%-Ch 3%.

Item Type:	Thesis (Other)
Additional Information:	RSKi 543 Hal a
Uncontrolled Keywords:	Film paduan gelatin-kitosan, analisis termal gravimetri, penguapan air, degradasi termal, Blend film of gelatine-chitosan, thermal gravimetric analysis, water vaporization, thermal degradation.
Subjects:	Q Science > QD Chemistry > QD481 Chemical structure.
Divisions:	Faculty of Mathematics and Science > Chemistry > 47201-(S1) Undergraduate Thesis
Depositing User:	magang .
Date Deposited:	19 Oct 2026 03:06
Last Modified:	19 Oct 2026 03:06
URI:	http://repository.its.ac.id/id/eprint/145668

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