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<![CDATA[OPTIMASI KOMPOSISI ORGANOCLAY UNTUK SIFAT MEKANIK KARET SINTETIS EPDM (ETHYLENE PROPYLENE DIENE MONOMER) ]]>
<![CDATA[Yuliasari Yuliasari]]>;
<![CDATA[M. Irfan Fathurrohman]]>;
<![CDATA[Arif Tjahjono]]>;
<![CDATA[Woro Andriani]]>
<![CDATA[ PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Vol 6 (2017): PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) SNF2017 ]]>
Publisher : <![CDATA[Program Studi Pendidikan Fisika dan Program Studi Fisika Universitas Negeri Jakarta, LPPM Universitas Negeri Jakarta, HFI Jakarta, HFI ]]>
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DOI: 10.21009/03.SNF2017.02.MPS.07
<![CDATA[EPDM - Clay Composite has been synthesized through the melt compounding process. EPDM type buna 6466 and sulfur are used respectively as polymer matrix and curing agent. Filler used is organoclay type cloisite 15 A, and EPDM - Clay composite characterized using XRD. Based on XRD results, undetectable peak d001 indicates that the basal space formed is large enough and signifies the formation of the exfoliation structure. The results of mechanical tests showed that the tensile strength and reinforcing index increased along with the addition of organoclay composition. Keywords: EPDM – Clay composites, organoclay, melt compounding, exfoliation]]>
<![CDATA[PEMBUATAN MOLECULARLY IMPRINTED POLYMER (MIP) MELAMIN MENGGUNAKAN METODE COOLING-HEATING ]]>
<![CDATA[Nurhamidah Nurhamidah]]>;
<![CDATA[Popo Marinda]]>;
<![CDATA[Erry Koryanti]]>;
<![CDATA[Idha Royani]]>
<![CDATA[ PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Vol 6 (2017): PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) SNF2017 ]]>
Publisher : <![CDATA[Program Studi Pendidikan Fisika dan Program Studi Fisika Universitas Negeri Jakarta, LPPM Universitas Negeri Jakarta, HFI Jakarta, HFI ]]>
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DOI: 10.21009/03.SNF2017.02.MPS.08
<![CDATA[Molecularly Imprinted Polymer (MIP) of melamine has been made using cooling-heating method. Melamine as the template is inserted into the solvent (ethanol + aquabidest), then added functional monomer (methacrylic acid), a cross-linker (ethylene glycol dimethacrylate), and an initiator (benzoyl peroxide). The pre-polymer solution was cooled in a refrigerator at -5ºC for an hour, and was heated in an oven at 75°C for 7 hours. The time is required to create a solid polymer MIP melamine with cooling-heating method is more efficient than the method use nitrogen flowing in the pre-polymer solution and then is put in a water bath and exposed to UV. Template in the polymer particles is removed by washing the polymer particles repeatedly to increase the effectiveness of cavities formation. Furthermore, MIP characterized use FTIR. The FTIR results show that the absorbance at 1000-1360 cm-1 wave number which is characteristic of the amine group wave number, for the unwashed polymer has a higher peak of 0,25 is compared with melamine MIP of 0,14. Keywords: MIP, melamine, cooling-heating, FTIR]]>
<![CDATA[PEMANFAATAN MINYAK JELANTAH SEBAGAI FOTOKATALIS CARBON NANODOTS UNTUK PENJERNIHAN AIR LIMBAH BATIK ]]>
<![CDATA[Aan Priyanto]]>;
<![CDATA[Devin Sidik Prayogi]]>;
<![CDATA[Nila Fitriya]]>;
<![CDATA[Jotti Karunawan]]>;
<![CDATA[Sulhadi Sulhadi]]>;
<![CDATA[Mahardika Prasetya Aji]]>
<![CDATA[ PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Vol 6 (2017): PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) SNF2017 ]]>
Publisher : <![CDATA[Program Studi Pendidikan Fisika dan Program Studi Fisika Universitas Negeri Jakarta, LPPM Universitas Negeri Jakarta, HFI Jakarta, HFI ]]>
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DOI: 10.21009/03.SNF2017.02.MPS.09
<![CDATA[Pollution of batik dye waste on water becomes an environmental problem which requires treatment. Photocatalyst technique using carbon nanodots (C-Dots) from waste frying oil with sunlight irradiation is an effective method to solve the problem. C-Dots from waste frying oil are produced by hydrothermal method at a temperature of 3000C for 150 minutes. C-Dots from waste frying oil used as photocatalyst material in batik waste solution with time variation of sunlight irradiation. The results of the photocatalytic process showed that the solution of batik waste experienced concentration degradation. This was observed from the color change of the solution and based on the analysis of digital image processing showed an increase in intensity value of Black and White with increasing the time of sunlight irradiation in photocatalytic process. The longer the irradiation time of the sun, the clearer the resulting solution, and the increased the intensity of black and white (grayscale) produced. This indicates that the elements contained in the batik waste solution have degraded the concentration so that the particles that can reflect light from the camera are getting less. These results show that C-Dots from waste frying oil have an excellent potential to be developed as water purification photocatalyst material. Keywords: Waste frying oil, Carbon nanodots, Photocatalyst, Waste batik water]]>
<![CDATA[STRUKTUR, MORFOLOGI, DAN AKTIVITAS BIMETALIK RU-SN/AL2O3 YANG DISINTESIS DENGAN METODA KONVENSIONAL DAN MIKROWAVE ]]>
<![CDATA[Ari Sulistyo Rini]]>;
<![CDATA[Shahidan Radiman]]>;
<![CDATA[Mohd. Ambar Yarmo]]>
<![CDATA[ PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Vol 6 (2017): PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) SNF2017 ]]>
Publisher : <![CDATA[Program Studi Pendidikan Fisika dan Program Studi Fisika Universitas Negeri Jakarta, LPPM Universitas Negeri Jakarta, HFI Jakarta, HFI ]]>
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DOI: 10.21009/03.SNF2017.02.MPS.10
<![CDATA[Preparation method plays an important role to produce and improve the properties of materials. Microwave-assisted preparation method has developed rapidly as a benign preparation procedure due to its fast and uniform heating mechanisms. To study the effect of preparation method, bimetallic Ru-Sn based catalyst has been synthesized by using conventional and microwave impregnation methods. In this study, microwave power used was 700 W. Metallic reduction process of ion Run+ and Snn+ were monitored using UV-Vis spectrometer. Samples were then characterized using XRD, SEM and TEM. According to TEM results, morphology of catalyst strongly depends on the preparation route and stabilizing agent. Sample with PVP (polyvinyl pyrrolidone) has better metallic nanoparticles distribution. The sample prepared by conventional method shows agglomeration of nanoparticles on the support. Catalytic activities of both samples were examined in reduction reaction of pollutant, i.e. 4-nitrophenol. The catalytic examination has shown that reaction rate of 4-nitrophenol reduction by using microwave-assisted sample has improved 3.5 times faster than conventional impregnation sample.   Keywords: microwave, bimetallic, nanomaterial, Ruthenium-Tin, catalyst]]>
<![CDATA[KUALITAS GENTENG TANAH LIAT DENGAN CAMPURAN SERBUK KACA ]]>
<![CDATA[Faiz Mudhofir]]>;
<![CDATA[Sulhadi Sulhadi]]>;
<![CDATA[Mahardika Prasetya Aji]]>
<![CDATA[ PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Vol 6 (2017): PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) SNF2017 ]]>
Publisher : <![CDATA[Program Studi Pendidikan Fisika dan Program Studi Fisika Universitas Negeri Jakarta, LPPM Universitas Negeri Jakarta, HFI Jakarta, HFI ]]>
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DOI: 10.21009/03.SNF2017.02.MPS.11
<![CDATA[The growth of human population is proportional to its needs. Fulfilling daily needs increases the amount of household waste. Glass waste is one of the waste that needs to be utilized optimally. Therefore it is necessary to invent the utilization of glass waste. One of its innovative forms is the use of glass powders for mixed materials on the manufacturing of clay tile home industry. Therefore, in this study researchers will use glass waste as a mixture of tile with mixed compositions of 0%, 5%, 10%, 15%, and 20% of the overall mass of clay tile. The quality of this tile will be compared between the normal and mixed one, it would be seen from the variable water absorbtion and tile strength. The results stated that the more mixture of glass powder, the tile has a smaller porosity / has a lower water absorbtion. The best mixture was obtained in a 15% mixture of 8.57%. The addition of the glass powder affects the tensile force of the clay particles in the tile, so in certain compositions it is possible to increase the compressive strength but in the excess composition it reduces the compressive strength. Keywords: clay tile, glass powder, compressive strength, absorbtion.]]>
<![CDATA[PENGARUH BENTUK DAUN LONTAR TERHADAP INTENSITAS BUNYI ALAT MUSIK SASANDO ]]>
<![CDATA[Afrianus Gelu]]>;
<![CDATA[Sulhadi Sulhadi]]>;
<![CDATA[Teguh Darsono]]>;
<![CDATA[Kristianus Liwa]]>
<![CDATA[ PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Vol 6 (2017): PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) SNF2017 ]]>
Publisher : <![CDATA[Program Studi Pendidikan Fisika dan Program Studi Fisika Universitas Negeri Jakarta, LPPM Universitas Negeri Jakarta, HFI Jakarta, HFI ]]>
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DOI: 10.21009/03.SNF2017.02.MPS.12
<![CDATA[Sasando is one of traditional music instrument from Rote Ndao Regency, East Nusa Tenggara. Sasando classified as musical instruments chordophone because played by way of plucked. One of the compilers of the construction of the Sasando is a leaf of the lontar (siwalan). This study aims to determine the influence of changes in the shape of leaves lontar (siwalan) horizontally to the intensity of the sound produced. The horizontal width of the lontar leaves was varied by 30 cm, 35 cm, 40 cm, 45 cm, 50 cm, and 55 cm. The intensity of the sound that is produced is measured using a Sound Level Meter (SLM). Based on the research results obtained show that there is change the value of the sound intensity if the diameter of the horizontal palm leaf changed its size. The value of the sound intensity the average Sasando change varies from 9,68 x 10-7 W/m2 up to a 2,85 x 10-5 W/m2. The value of the intensity of the sound of most high is at a diameter of 40 cm while the value of the sound intensity that most low located on a diameter of 30 cm. Keywords: Sasando, lontar, sound intensity]]>
<![CDATA[ANALISIS CITRA PEWARNA ALAMI DARI EKSTRAK KULIT BUAH NAGA (Hylocereus polyrhizus) ]]>
<![CDATA[Noor Hidayah]]>;
<![CDATA[Mahardika Prasetya Aji]]>;
<![CDATA[Sulhadi Sulhadi]]>
<![CDATA[ PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Vol 6 (2017): PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) SNF2017 ]]>
Publisher : <![CDATA[Program Studi Pendidikan Fisika dan Program Studi Fisika Universitas Negeri Jakarta, LPPM Universitas Negeri Jakarta, HFI Jakarta, HFI ]]>
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DOI: 10.21009/03.SNF2017.02.MPS.13
<![CDATA[The dragon fruits are a similar plant in Indonesia. It has thick peel. The peel of dragon fruit has less benefit. The peel of dragon fruit contains anthocyanin pigment which gives red color. The super red dragon fruit ((Hylocereus polyrhizus) are used in this research. The extraction of anthocyanin are taken by boiling dragon fruit with water; it will continue until the change to the red fluid. The next experiment, the fabric is immersed in it. The quality of fabric is showed from Intensity Black and White value, in this experiment, the fluid extraction is added with water. If the composition of extraction are added more then the value of Intensity Black and White are increased. The goal of the research is to get best of color for fabric, So the ratio of fluid extraction and water is 2:1. It should change fabric color to pink. Keywords: peel of dragon fruit, extraction, color.]]>
<![CDATA[ANALISIS SIFAT ADSORPSI KARBON AKTIF KAYU DAN TEMPURUNG KELAPA PADA LIMBAH CAIR BATIK DI KOTA PEKALONGAN ]]>
<![CDATA[Nihla Nurul Laili]]>;
<![CDATA[Mahardika Prasetya Aji]]>;
<![CDATA[Sulhadi Sulhadi]]>
<![CDATA[ PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Vol 6 (2017): PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) SNF2017 ]]>
Publisher : <![CDATA[Program Studi Pendidikan Fisika dan Program Studi Fisika Universitas Negeri Jakarta, LPPM Universitas Negeri Jakarta, HFI Jakarta, HFI ]]>
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DOI: 10.21009/03.SNF2017.02.MPS.14
<![CDATA[Pekalongan City is a center of batik production in Central Java. Problems that arise the process of batik synthesis produce liquid waste that can damage the environment. One of the wastewater treatment of batik can be done by using activated carbon. Charcoal wood and coconut shell charcoal can be used as activated carbon. The process of carbon activation is carried out chemically with an H3PO4 acid solution for 24 hours. The resulting activated carbon is used to adsorb batik wastewater with a variation of immersion contact time. The degradation of waste color before and after active immersion was measured using a spectrometer UV-Vis. The results showed that the longer the contact time between activated carbon and batik liquid waste, the level of clarity of batik liquid waste is higher, and the more decreasing the absorbance value generated. The use of coconut shell charcoal activated carbon in batik liquid waste shows higher clarity level compared to wood activated carbon. Keywords: Wood Charcoal, Coconut Shell Charcoal, Batik Liquid Waste.]]>
<![CDATA[PEMANFAATAN SERAT PELEPAH PISANG SEBAGAI BAHAN TALI TAHAN AIR ]]>
<![CDATA[Hasri Arlin Wuriyudani]]>;
<![CDATA[Sulhadi Sulhadi]]>;
<![CDATA[Teguh Darsono]]>
<![CDATA[ PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Vol 6 (2017): PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) SNF2017 ]]>
Publisher : <![CDATA[Program Studi Pendidikan Fisika dan Program Studi Fisika Universitas Negeri Jakarta, LPPM Universitas Negeri Jakarta, HFI Jakarta, HFI ]]>
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DOI: 10.21009/03.SNF2017.02.MPS.15
<![CDATA[Waterproof rope with diameter 5 mm and length 30 cm has been produced from banana stalk by spinning process. Spinning process is began by separating inner and outer banana fiber after drying process. The inner fiber is soaked by chitosan 2% with variation of dyeing for 1 hour to 5 hours. Chitosan 2% is obtained by dissolving acetic acid 1% with chitosan powder. Banana fiber is dried and spinned to be a rope. The quality of waterproof rope is indicated by density test, water absorption test, and breaking strength test. The highest density 0,78 is obtained from 5 hours of dyeing. The highest water absorption 87,39% is obtained without dyeing. And the breaking strength 290,00 N is obtained from two hours of dyeing. Keywords: Banana fiber, waterproof rope, chitosan]]>
<![CDATA[PEMANFAATAN ABU KULIT BUAH KAPUK RANDU SEBAGAI ALTERNATIF BAHAN PENGEMBANG KUE ]]>
<![CDATA[Nenik Yuniarti]]>;
<![CDATA[Sulhadi Sulhadi]]>;
<![CDATA[Teguh Darsono]]>
<![CDATA[ PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Vol 6 (2017): PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) SNF2017 ]]>
Publisher : <![CDATA[Program Studi Pendidikan Fisika dan Program Studi Fisika Universitas Negeri Jakarta, LPPM Universitas Negeri Jakarta, HFI Jakarta, HFI ]]>
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DOI: 10.21009/03.SNF2017.02.MPS.16
<![CDATA[Kapok tree (C. pentandra) is a plant that is commonly found in Indonesia. The skin of kapok fruit containing sodium substances can be utilized as raw material for making baking soda. The purpose of this study is to determine the increase in the volume of cakes owned by food developers. This research method by soaking the ashes of the skin in the air at least 12 hours. Soaked ashes of filtered ashes and evaporated water until temperature of 890 C until the result of baking soda solids. Baking soda testing was done on steamed brown dough. First, the brown dough is given 5 grams, volume is 722.5 cm3. Second, given 10 grams of baking soda, the volumes 1011.5 cm3. As much as 15 grams, the volume 1156 cm3. The provision of baking powder as a comparison is done by the same treatment. The first, given 5 grams of developers, resulting volume 722.5 cm3. Second, as much as 10 grams, the volume 1011.5 cm3. Third, as much as 15 grams, the volume 1156 cm3. From the above test, the addition of baked soda to brownie cake contains the same volume as the volume produced on the addition of baking powder. Keywords: Fruit leather ashes, baking soda]]>
