Uji Konduktivitas Termal Komposit Poliester Filler Serbuk Kayu Ulin (Eusideroxylon Zwageri)

Abstract

To find out the best thermal conductivity value on the volume fraction of ironwood polyester filler composite (Eusideroxylon Zwageri) and to determine the effect of the number of voids on the value of the thermal conductivity of the ironwood polyester composite composite (Eusideroxylon Zwageri). This study uses an experimental method by conducting thermal and microstructure conductivity tests to see the many voids that have formed. The object in this study uses ironwood powder. Data analysis techniques in this study used descriptive data analysis which is describing research results graphically in a table. Input parameters in analyzing data include variations in the mixture of ironwood powder and resin (20% -80%, 25%: 75% and 30%: 70%), and 100% resin. The results of the study of the effect of the volume fraction of ironwood polyester composite composites on the value of thermal conductivity decreased with increasing volume of ironwood powder with the smallest thermal conductivity value at 30% volume fraction of ironwood powder : 70% polyester resin matrix that is 0.041 W/moC. The influence of the amount of voids on the thermal conductivity value of ironwood polyester composite composites can be seen that the more voids the smaller the thermal conductivity values. The number of voids along with the increasing volume of ironwood powder.

Karakteristik Termal Material Komposit Berbahan Dasar Polipropilena dan Batang Pisang

“…Hal ini juga tidak sesuai dengan beberapa penelitian terdahulu yang mengombinasikan bahan alam dengan polimer (Tabel 4). Bahan alam yang digunakan adalah serat batang pisang (Pujari dkk., 2017;Subramanya dkk., 2022), serat rami (Nath dkk., 2019), serbuk kayu ulin (Bustomi & Ghofur, 2021), dan serat daun nanas (P dkk., 2023). Berdasarkan penelitian terdahulu, nilai konduktivitas termal komposit semakin menurun seiring dengan penambahan fraksi volume serat.…”

“…(2023), nilai konduktivitas termal menurun diakibatkan oleh pori pada serat alam yang digunakan. Pori alami yang dimiliki oleh serat akan menghambat transmisi panas sehingga menurunkan nilai konduktivitas termal baik menggunakan polimer termoset maupun termoplast walaupun polimer termoplastik menghasilkan nilai konduktivitas panas yang lebih rendah (Bustomi & Ghofur, 2021) Beberapa alasan mengapa hasil penelitian ini tidak sesuai dengan penelitian sebelumnya. Satu, hal ini dapat disebabkan oleh posisi serat batang pisang dan polipropilena dengan arah fluks termal.…”

Critical Studies of the Land Mafia Practices: Evidence in Indonesia

“…In this case, the land mafia carried out their actions by producing fake ID cards (KTP) and colluding with fake brokers and notaries. The mode of the conspiracy: targeting targets, making fake KTPs, colluding with black brokers + fake notaries, and installing photo-like figures on KTPs who are paid to play the role of fake KTP owners (Bustomi, 2021). There are three land certificates belonging to Zurni Hasyim Djalal, the mother of Dino Patti Djalal which are the object of the problem, namely land in West Cilandak, Pondok Indah and Kemang.…”

Performance testing of the thermal conductivity measuring equipment on particle board isolators

“…The polymer's low thermal conductivity (0.2 Wm -1 K -1 ) prevents it from dissipating heat as quickly as necessary for high-power devices. To increase the thermal conductivity of polymer composites, high thermal conductivity nanofillers are utilized, such as boron nitride nanosheets (BNNS), graphene, and carbon nanotubes [1][2][3].…”