Article Per Year (5 Year)
p-Index From 2021 - 2026
0
P-Index
This Author published in this journals
All Journal BERKALA FISIKA JURNAL FISIKA Jurnal Matematika & Sains
Euis Sustini
Unknown Affiliation
Mathematics Physics

Published : 7 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search
Journal : JURNAL FISIKA

 1 
Kajian Struktur Serat dan Porositas Masker Udara Handika Dany Rahmayanti; Rahmawati Rahmawati; Euis Sustini; Mikrajuddin Abdullah
Jurnal Fisika Vol 8, No 1 (2018)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jf.v8i1.13966

Abstract

There are 6 brands of air masks on the market that are Evo med, Nexcare carbon, Nexcare daily, Indomaret, Borma and Evo club. All masks on the market have 3 layers. Based on the results of microscopy testing showed that the fiber diameter image of all mask brands in layer 2 is smaller than layer 1 and 3. Generally, all brands of masks show a uniform fiber size distribution. From the surface porosity measurements, Borma masks have a larger porosity than other masks in layers 1, 2 and 3 ie 60.64%, respectively; 42.95% and 63.58%. The results show that the difference in mask price in the market does not show the quality standards of different mask filters. Furthermore, the results of this study may contribute to the development of research on masks.
Karakterisasi Sifat Mekanik Benang Wol dan Benang Kasur Rahmayanti, Handika Dany; Munir, Rahmawati; Sustini, Euis; Abdullah, Mikrajuddin
Jurnal Fisika Vol 9, No 1 (2019)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jf.v9i1.19421

Abstract

Kajian mengenai karakteristik sifat mekanik benang merupakan hal yang sifatnya sederhana namun penting dilakukan demi berkembangnya penelitian mengenai serat dan benang. Pada penelitian ini digunakan dua jenis benang di pasaran yakni benang wol dan benang kasur. Karakterisasi meliputi kekuatan benang, elongasi, tenacity dan modulus Young. Berdasarkan hasil uji tarik didapatkan nilai kekuatan, elongasi dan tenacity dari benang. Nilai kekuatan benang wol berkisar 1269,09gram-1551,32gram. Dari kurva hasil uji tarik dapat diestimasi nilai modulus Young dari benang wol yang ada di pasaran yaitu 295 MPa-439 MPa. Sedangkan untuk hasil karakterisasi benang kasur di pasaran didapatkan bahwa benang mampu menahan beban maksimum 4794,12 gram-5895,45gram dan nilai modulus Young dari benang kasur didapatkan nilai 389,7MPa-495,29 MPa.
Co-Authors Albert Manggading Hutapea Hasniah Aliah Horasdia Saragih Lilik Hasanah Maman Budiman Mikrajuddin Abdullah Munir, Rahmawati Munir, Rahmawati Rahman, Dui Yanto Rahmawati Rahmawati Rahmawati, Rahmawati Rahmayanti, Handika Dany RR. Ella Evrita Hestiandari Sukirno Sukirno Sukirno Sukirno