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Dwi Wahyuni
Prodi S2 Biosain PPs UNS
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Journal : Indonesian Journal of Aerospace

 1 
PENGARUH PELARUT (ETIL BENZENA), PERBANDINGAN STYRENE BUTADIENE RUBBER (SBR) TERHADAP STIREN, DAN JUMLAH INISIATOR (BPO) PADA PEMBUATAN HIGH IMPACT POLYSTYRENE (HIPS) Wahyuni, Dwi
Indonesian Journal of Aerospace Vol. 2 No. 2 (2004): Jurnal Teknologi Dirgantara
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30536/j.jtd.2004.v2.a800

Abstract

High impact polystyrene (HIPS) is the widely used material now, and also for the aerospace material as a communication instrument system and an electrical insulation. In order to produce HIPS, there are a view method which can be executed. In this case, the research is executed by the copolymerization processes of styrene butadiene rubber (SBR) solution in styrene. Variables which influence to the result properties (HIPS) are the SBR to styrene ratio, the solvent (ethyl benzene), the benzoyl peroxide initiator (BPO). The properties of the product are tensile strength, impact strength, softening point, melting point and the hardness. The result showed that the properties of the HIPS product was near of the HIPS high heat. The optimal processes condition was the solvent to the styrene monomer ratio was 0.05492, the SBR to the styrene ratio was 0.1236 and the BPO to the styrene ratio was 0,0003. The properties of the HIPS product were: the impact strength was (519-1215) N per cm, the tensil strength not more than was 106 N per cm, the elongation was (36-54) percent and the hardness was (65-69) shore A. This properties achieved at the mixing polymerization processes 4 scale in 11-12 hours, the early mixing at 4 scale 1 hours, the cutting chain 2 drops.
PENELITIAN PEMBUATAN POLI METIL METAKRILAT Wahyuni, Dwi; Dewi, Sri Rukmini
Indonesian Journal of Aerospace Vol. 1 No. 2 Desember (2003): Jurnal Teknologi Dirgantara
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30536/j.jtd.2003.v1.a781

Abstract

The poly methyl methacrylate (PMMA) research has been excecuted. Methyl methacrylate is polymerized by the free radical inisiation with the suspension condition using benzoyl peroxyde inisiator, water as a solution and the gelatine stabilizer, in this reseaarch is executed as a standard ratio (part per part:monomer : water : stabilizer = 100 : 350 : (0.1 1) with the inisiator to monomer ratio variation (part per part) are: 0.1 per 50; 0,175 per 50; 0,25 per 50; 0,25 per 50, the temperature variation are : 30 degree C, 45 degree C, 60 degree C and the time polymerization until 320 minutes. The result showed that the optimum monomer polymerizeation was at the inisiator to monomer ratio 0,25 per 50, the temperature at 45 degree C and at the time polymerization until 300 minutes with the monomer conversion was 86 percent. The Infra Red Spectroscopy analyses showed that there are poly methyl methacrylate in the product. The Gas Liquid Chromatography analysis showed the evolution of the monomer (methil methacrylate concetration.
Co-Authors Abdul Kadir Ady Soesetijo, Ady Akbar, Muhammad Farhan Almarsaban, Almarsaban Alviyanti, Dina Ama, Petrus Geroda Beda Andini, Mariska Anggraeni, Apprillia Anggraeni, Nyi Aida Anitasari, Dhesy Anjani, Mardhiana Dwi Ardiyansyah, Ridho Arini Dwi Larasatining Retnowati, Arini Dwi Larasatining Armaini, Armaini Armawadin, Irsyad Daffa Asih Imulda Hari Purwani Asniah Asniah Asrulla, Asrulla Aulia, Qosania Wilda Ayu Ningsih, Silvi Putri Beda Ama, Petrus Geroda Burhan, Asmat Busro, B. Depita Ariningtyas Dera Dwi Herawati Deshinta Putri Mulya Desi Rusmiati, Desi Devi Novitasari, Devi Devita, Risa Dewi, Sri Rukmini Dian Wahyuning Tyas Dinaloni, Diah Efriyanisari, Efriyanisari Eka Agustina, Eka Erwin Novita Sari Farianingsih, Farianingsih Fauziah, Dafa Feriatul Qiptiyah, Feriatul Fierda Nurany, Fierda Fihrin Fihrin Fita Sari, Fita Fitrah Dewi Mustikasari Giyatmi Giyatmi Hafrizdha Chandra Y Hari Untarto Swandono Harini Hartono, Arif Herlinda Mawardika HERU SUBRATA Hidayatul, Fathul Husna, Wal’idatul Ida Kristianingsih Iffah, Jauhara Dian Nurul Iis Nur Asyiah Ina Darliana Jarwanti, Jarwanti Jeka, Firdaus Jekti Prihatin Jubaidah, Asih Kamila, Fanisa Ayu Cahya Karista, Karen Karlina, Intan Kastori F , Aris Khairul Ikhwan Khairunnisa Batubara Khasanah, Siti Ma’rifatul Khomisah komalasari , Sartika KRISNA KHARISMA PERTIWI KURNIAWATI, YUYUN La Ode Aris Laksanano, Gayuh Siska Laurenza, Dinar Legawati , Sri Legawati Lestari, Julita Lucia Endang Hartati, Lucia Endang Lukman Hakim Maemunah , Azis Maemunah, Azis Maisah Maisah Mardiatul Hasanah Martalia, Martalia Masruroh, Ani Mochammad Iqbal Muhammad Yusuf Muslimin Muslimin Nadia Pramasari Ni'mah, Ni'mah Norhayati, Dewi Nur Aini NURUL HIDAYAH Nurwiani, Nurwiani Octavia, Indah Andika Pane , Efi Irwansyah Pham, Huong Thi Thu Prana, Mega Yuliya Prasetijwowati, Tri Pratama, Fadhiil Novriadi Priastika, Awaluci Puspitaningsari, Mecca Putri, Amirah Nuraini Lianti Putri, Sherlyna Rizkiya Rachma Nurhayati Rahayu, Martini Rahman, Muhammad Fajar Wahyudi Rahmawati, Miranda Wulandari Rambe, Riris Nurkholidah Ratna, Dewi Retnowulan, Heni Rezeki , R. Sri Ridlo, Zainur Rasyid Riska Dhenabayu Rismawati , Rismawati Riyanti, Neni Rizka Elan Fadilah, Rizka Elan Rohmatin, Homsiatur Rosa Juwita Hesturini Rosa Susanti Rosa, Lidiya Praktika Rosadi, Kemas Imron Rozana, Kennis S Suratno Sabna, Anjali Saksitha, Deassy Arestya Saloma Samadi W Bakar, Samadi W Sara Munthe, Atika Sari PDW, Kumala Sariwati, Atmira Sefriyono Sefriyono Sekarrini, Loveria Selly Rizki Yanita Sembiring, Evaliata Br. Sihombing, Nurma Sari Siti Murdiyah Slamet Hariyadi Sri Katoningsih Sri Wilujeng Srimulyaningsih, Reni Suciati Sudarisman Sudiastuti, Sudiastuti Sudrajat Sudrajat Sugeng Sutiarso Sugiyarto Sugiyarto Sukur, La Ode Sulistyaningsih Sulistyaningsih Sulthan Ahmad Suryani Harahap, Efi Susanti, Dhina Ayu Susilowati, Lina Sutarto Sutarto Suwanda, Azlan Swandono, Hari Tan, Ishak Tantut Susanto Tiarnida Nababan Tomi Utomo tri wahyuni Trio Ageng Prayitno, Trio Ageng Wachju Subchan Wenang Anurogo, Wenang Widjayanti, Trisna Budy Widya Resti Susanti Widyarani, Destia Wilis Sukmaningtyas Yulazri, Yulazri Yuliani Yuliani