Article Per Year (5 Year)
p-Index From 2019 - 2024
0.23
P-Index
This Author published in this journals
All Journal Jurnal Teknologi Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit
Suharyanto Suharyanto
Politeknik ATK Yogyakarta
Arts Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Social Sciences

Published : 4 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 4 Documents
Search

 1 
Pengaruh Waktu dan Suhu Penyimpanan Kompon Karet terhadap Karakteristik Vulkanisasi Muh. Wahyu Syabani; Suharyanto Suharyanto; Mertza Fitra Agustian; Lestari Hetalesi Saputri
Jurnal Teknologi Vol 10, No 2 (2023): Jurnal Teknologi
Publisher : Universitas Jayabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31479/jtek.v10i2.223

Abstract

A rubber compound is an intermediate product resulting from mixing rubber with other additives before being molded through a vulcanization process. Frequently, there is a delay between the compounding process and vulcanization, therefore proper storage procedures must be prepared. The presence of a vulcanizing agent, activator, and accelerator in the compound allows the vulcanization reaction to occur during the storage period. This study aims to analyze the effect of the storage time and temperature of rubber compounds on rubber vulcanization characteristics. The rubber compound is stored at room temperatures of 25oC and 32oC. On the 1st, 3rd, and 5th day of storage, the compounds were tested using a rheometer to obtain vulcanization parameter data. The values of MH, ML, ts2, tc90, cure rate index (CRI), and effective torque of each treatment were studied. The results showed that the storage time of the compound affected each of the observed parameters. In the range of 5 days, the longer time indicates the formation of polysulfide crosslinks in the rubber polymer chain network. Higher storage temperature also faster reaction rate during storage. The increasing number of cross-links resulting a longer induction period dan vulcanization time, lower CRI, and effective torque.
TEKNIK PEREKATAN BAHAN KULIT ATASAN SEPATU DENGAN BAHAN KARET MENGGUNAKAN METODE SPRAY Suharyanto Suharyanto
Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit Vol 15 No 2 (2016): Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit
Publisher : Politeknik ATK Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (149.884 KB)

Abstract

Gluing method with spray that the layer of glue is thin and flat is done in order to save glue and increase gluing quality as well as save the time. Dilution formula is 75 ml added with 150 ml diluent or a ratio of 1 than 2, or in percent 50% compared to 100%; with diluent using thinner, a volatile substance bringing the glue into gluing area in which it can be attached as the diluent evaporates. Data results show that 5 minutes drying time is 0.06407 N, 6 minutes 0.05002 N, 7 minutes 0.04446 N, N 0.03661 8 minutes and 9 minutes 0.02092 N. From the table and graph made, a good adhesive is glue with drying time of 5 minutes, then 6 minutes, 7 minutes, 8 minutes, and 9 minutes. From the results of research, it reveals that using sprayer is more efficient and effective, easy to use, showing good results, and saving time.
PEMBUATAN LEM DARI KOMPON KARET ALAM UNTUK PEREKATAN BAHAN KULIT ATASAN SEPATU DAN BAHAN KARET Suharyanto Suharyanto
Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit Vol 16 No 1 (2017): Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit
Publisher : Politeknik ATK Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Gluing method is a method to merge leather upper with rubber materials using Shear method by gluing the material to one another in the opposite direction with compound adhesive. This research aims to get compound adhesive to glue leather upper and rubber material. Gluing factors include time, temperature, pressure, type of glue, and glued materials. Methods would ultimately determine the strong adhesion between the leather upper and rubber materials. Formula of rubber compound adhesive consists of natural rubber added with additive materials such as activator, accelerator, plasticizers, fillers, glue and sulfur vulcanizator, and then milled using two-roll mill to be a rubber compound, a solid brown color. Manufacture of compound adhesive with 100 grams of rubber, added with 70 grams petroleum solvent, for 24 hours. The next process is smearing leather upper in 8, 10, 12, 11, 14, and 16 minutes, with the highest test results of drying time is 16 minutes with the strong adhesion of 268.04 N. The strongest adhesion between leather upper and rubber material reach the highest drying time of 12 minutes with the strong adhesion of 149.06 N. In conclusion, adhesion between leather and leather are stronger than leather and rubber materials using Shear Test.
PENGARUH SETTING SUHU DAN WAKTU PADA MESIN INJECTION MOLDING TYPE HONGJIA TERHADAP HASIL OUTPUT OUTSOLE SEPATU FASHION ARTIKEL CHANCAY DI PERUSAHAAN SEPATU FASHION DI PASURUAN Muhamad Raka Mahendra; Suharyanto Suharyanto; Diana Ross Arief
Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit Vol 16 No 2 (2017): Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit
Publisher : Politeknik ATK Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (305.979 KB)

Abstract

The aim of the study is to know the process of making outsole with injection molding machine along with the problems and solutions by observation, interview, and internship program in the company. The material used is thermoplastic rubber (TPR) with hardness 70-75. The method used is injection molding. The process of outsole production begins with machine preparation, and is followed by material preparation, injection process, checking, finishing, packing and delivery. The result shows that Chancay finished goods were tested manually with the organoleptic and physical methods in accordance with the provision of the buyers. Percentage of the outsole rejects is amounted up to 7,57 % from the results of the production; i.e short shoot and sponge. Problem solving proposed is to adjust the machine settings on optimal conditions with the temperature of the nozzle 175°C. of barrel zone I 175°C, of zone II 170°C, and of zone III 165°C. An optimal cooling time is four seconds and optimal injection time is eight seconds, in which trial was conducted and obtained improvement of outsole quality and reject product reduction as much as 4.9 %. In conclusion the outsole should be produced by both appropriate and controlled machine setting parameters in accordance with the on-time availability of materials in the injection molding process.
Co-Authors Diana Ross Arief Mertza Fitra Agustian Muh. Wahyu Syabani Muhamad Raka Mahendra Saputri, Lestari Hetalesi