Analisis Pengaruh Temperatur Terhadap Sifat Termal dan Gugus Fungsi Proses Thermoforming Material Polivinilklorida

Siswanto, Budiarto Djono and Saputro, Bayu Fajar and Sebayang, Melya Dyanasari (2021) Analisis Pengaruh Temperatur Terhadap Sifat Termal dan Gugus Fungsi Proses Thermoforming Material Polivinilklorida. JOURNAL OF MECHANICAL ENGINEERING, MANUFACTURES, MATERIALS AND ENERGY, 5 (2). pp. 134-150. ISSN 2549-6239

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Abstract

Membentuk plastik lembaran menjadi bermacam bentukan baru dan aplikasinya, plastik ini disesuaikan dengan desain yang kita inginkan dengan bantuan panas, tekanan dan cetakan. Tujuan dari penelitian ini adalah menentukan energi dan nilai panas yang dilepas material PVC dengan variasi suhu heating dan cooling pada forming unit, mengetahui pengaruh temperature proses PVC terhadap sifat termal dengan alat DSC dan mengetahui pengaruh temperature proses PVC terhadap gugus fungsi dengan alat FTIR . Hasil perhitungan menunjukkan panas yang dilepas oleh material A.1 sebesar 1,740 Watt dan A.2 sebesar 1,938 Watt. Energi yang diterima air pendingin pada menit ke 30 pada spesimen A.1 sebesar 5,571 Watt dan A.2 sebesar 14,857 Watt dengan kenaikan temperatur masing-masing sebesar 0,5℃. Hasil uji DSC sample A.1 (cacat) dan A.2 (bagus) menunjukkan bahwa temperatur leleh dari keduanya hampir sama yaitu sekitar 78oC tetapi terdapat perbedaan pada Tg (temperature glass) sebesar 0,013 J/goC lebih cepat spesimen uji A.2 115oC (Bagus). Hasil uji FTIR sample A.1 (cacat) dan A.2 (bagus) menunjukan adanya perbedaan panjang gelombang paling tinggi sampai dengan 8,4% pada nilai gelombang 3749.77cm-1 dan 3740.90cm-1 . Kata Kunci : Thermoforming ; mesin UPS 1070 ; temperatur ; heating,; DSC dan FTIR / Forming sheet plastic into various new shapes and applications, this plastic is adjusted to the design we want with the help of heat, pressure and molding. The purpose of this study was to determine the energy and heat value released by PVC material with variations in heating and cooling temperatures in the forming unit,to determine the effect of PVC process temperature on thermal properties with DSC tools and to determine the effect of PVC process temperature on functional groups using FTIR tools.The calculation results show that the heat released by the A.1 material is 1,740 Watt and A.2 is 1,938 Watt. The energy received by the cooling water in the 30th minute on specimen A.1 is 5.571 Watt and A.2 is 14,857 Watt with each temperature increase of 0.5℃. The results of the DSC test samples A.1 (defective) and A.2 (good) show that the melting temperature of the two is almost the same, which is around 78oC but there is a difference in Tg (temperature glass) of 0.013 J/goC faster than the A.2 test specimen 115oC (Very nice). The results of the FTIR test samples A.1 (disabled), A.2 (good) showed the highest difference in wavelength up to 8.4% at the wave values of 3749.77cm-1 and 3740.90cm-1. Keywords: Thermoforming; UPS 1070 engine; temperature; heating; DSC and FTIR

Item Type: Article
Subjects: TECHNOLOGY
Depositing User: Mr Alexander Jeremia
Date Deposited: 23 Nov 2023 06:12
Last Modified: 23 Nov 2023 06:12
URI: http://repository.uki.ac.id/id/eprint/12898

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