PENGARUH PENYAMAKAN ZIRKONIUM TERHADAP UJI KEKUATAN TARIK, UJI KEKUATAN SOBEK, UJI KEMULURAN DAN UJI SUHU KERUT   PADA BERBAGAI JENIS KULIT IKAN (The Effect of Zirconium Tanning Against Tensile Strength Test, Strength Test of Tear, Glide Test, and Wrinkle Temperature Test on Different Fish Types)

Kulit ikan merupakan limbah perikanan yang dapat memberikan dampak negatif pada lingkungan. Salah satu cara untuk menanggulangi limbah tersebut adalah dengan proses penyamakan kulit. Penyamakan kulit adalah rangkaian proses yang sangat kompleks terjadi banyak perubahan fisik dan kimia di satu sisi, bagian yang tidak berguna dihilangkan dari kulit mentah untuk mendapatkan serat kolagen murni dan membuka struktur serat kolagen. Proses penyamakan yang tidak baik mengakibatkan kulit menjadi rusak, lemas, dan kebusukan, sehingga penanganannya dapat dengan cara menambah bahan penyamak untuk menguatkan dan menghindari kebusukan. Bahan penyamak yang digunakan yaitu zirconium. Tujuan penelitian ini adalah untuk mengetahui pengaruh penyamakan zirkonium terhadap uji kekuatan tarik, uji kekuatan sobek, uji kemuluran dan uji suhu kerut pada berbagai jenis ikan. Bahan baku yang digunakan adalah kulit ikan nila, kakap dan bandeng. Metode penelitian yang digunakan adalah experimental laboratories menggunakan Rancangan Acak Lengkap (RAL) dengan tiga kali ulangan dan menggunakan analisa ragam ANOVA. Hasil uji menunjukan penggunaan zirkonium 7,5% terhadap kulit ikan nila, kakap, dan bandeng berpengaruh nyata (p<0,05) pada kekuatan tarik, kekuatan sobek, kemuluran dan suhu kerut pada karakteristik penyamakan. Penggunaan bahan penyamak zirkonium 7,5% terbaik dihasilkan oleh kulit ikan kakap pada uji kekuatan tarik 1675,84 N/cm2, kekuatan sobek 163,92 N/cm2 dan uji suhu kerut 103,45˚C sedangkan kemuluran untuk hasil terbaik pada kulit bandeng sebesar 28,74%, jadi setiap ikan mempunyai ciri kulit tersendiri pada setiap parameter uji. The skin of the fish waste is a fishery that can give a negative impact on the environment. One way of tackling the waste is by the process of tanning leather. Tanning is a very complex processes occur many chemical and physical changes on the one hand, the useless removed from rawhide to get pure collagen fibers and the open structure of the collagen fibers. The process of tanning is not a good result in the skin becomes broken, buckled, and corruption, so that responses can be with how to add ingredients to strengthen Tanner and avoid corruption. On the research of materials used i.e. Tanners used are zirconium.. The purpose of this research is to know the influence of zirconium tanning against test tensile strength, tear strength test, test and test temperature wrinkle elongation on various types of fish. The raw material used is leather fish tilapia, milkfish and snapper. Research methods used are experimental laboratories using Complete Random Design (RAL) with three-time repeats and a range of analysis using ANOVA. Test results showed the use of zirconium 7.5% against the skin of the fish, snapper, tilapia and milkfish influential real (p < 0.05) on the tensile strength, tear strength, elongation and wrinkle on temperature characteristics of tanning. The use of zirconium Tanner 7.5% best produced by skin test on a snapper 1675.84 tensile strength N/cm2, the strength of RIP 163.92 N/cm2 and test the temperature of the wrinkle 103,45 ˚ C while elongation for the best results on the skin of the banding of 28.74%, so each fish has its own skin characteristics on each test parameter.

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Heritage Building Stones from Évora, Portugal

10.5194/egusphere-egu2020-22413 ◽

2020 ◽

Author(s):

Luis Lopes

Keyword(s):

Analytical Techniques ◽

The Other ◽

World Heritage Site ◽

Raw Material ◽

Other Hand ◽

Heritage Site ◽

Ancient Rock ◽

Materials Used ◽

The One ◽

The City

The city of &#201;vora, a World Heritage Site recognized by UNESCO in 1986, also owes this recognition to the stones that built its monuments and preserve them until today.This work brings together the contributions that we have gathered over the past three decades and allow us to have a very complete idea, not only about the materials used in the hundreds of monuments and historic buildings but also about their provenance. If some materials are so emblematic that they allow an immediate identification with the naked eye, others needed more sophisticated and precise techniques so that there was no doubt about their origin.The igneous rocks and gneisses of granite composition are part of the &#8220;Massif of &#201;vora&#8221; on which the city is built. Thus, and quite naturally they are by far the most represented group in monuments from all historical periods. Its function is essentially structural, but there are also functional, ornamental and decorative objects. For example, the oldest megalithic structures found in the vicinity of the city are made up of large granite blocks that often had to be transported to their locations.On the other hand, many gargoyles and statues that decorate the churches are also made up of these granite rocks. On these, the natural erosion of centuries of exposure to the environment has led to a state of alteration, sometimes very accentuated, which would justify its replacement by replicas sculpted in similar rocks. Provenance studies have made it possible to identify old quarries in the vicinity of the city where, on the one hand, the ancient rock extraction techniques can be observed and on the other hand, they allow the obtaining of the raw material necessary for these restoration and conservation works. In any case, they are places that need to be inventoried and protected, with the municipality already aware of their existence.As well as the monuments of the Roman Period, also the structures of the Medieval Period, such as the city walls, the Cathedral (started to be built in 1186 AD) and all the great churches, were also built with these granitoids.In addition to these rocks, many others of multiple varieties and origins are present. The marbles, especially the Estremoz Marbles (Global Heritage Stone Resource), are ubiquitous in the city, but there are also emblematic marbles from other places, some easily identifiable (ie Viana do Alentejo, Escoural, Trigaches, Serpa and Vila Verde de Ficalho, for presenting mineralogy, textures, colors and patterns which, together with more recent analytical techniques, have confirmed its provenance.Sedimentary rocks, with emphasis on Portuguese Mesozoic limestones, ie Lioz - GHSR and Brecha da Arr&#225;bida - GHSR candidate, among others more rare and with very specific use in ornamental details, are also present and contribute to enrich a heritage in stone that makes this city so special and very popular with tourists of all nationalities.Acknowledgments: the authors thank to FCT for funding the ICT (UID/GEO/04683/2019), as well as COMPETE POCI-01-0145-FEDER-007690.

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Effect of Carbon Black Reinforcing Fillers on Mechanical Properties of NBR Materials Used for the Progressing Cavity Pump

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.750.339 ◽

2015 ◽

Vol 750 ◽

pp. 339-344 ◽

Cited By ~ 1

Author(s):

Long Pan ◽

Jin Zhu Tan ◽

Liu Fei Fan ◽

Xue Mei Han

Keyword(s):

Mechanical Properties ◽

Mechanical Property ◽

Tensile Strength ◽

Elastic Modulus ◽

Carbon Black ◽

Heat Resistance ◽

Tear Strength ◽

Resistance Property ◽

Reinforcing Fillers ◽

Materials Used

Three kinds of reinforcing fillers (i.e. carbon black N330, carbon black N880 and carbon-white) were used to study effect of the reinforcing fillers on the mechanical properties of NBR materials. The NBR materials with various reinforcing fillers were fabricated, and the mechanical property tests were performed in this work. The results show that the carbon black N330 made the NBR material have better tensile strength, hardness, elongation and compression elastic modulus compared to the carbon black N880 and the carbon-white, while the carbon-white made NBR material have better heat resistance, tear strength and elongation compared to the carbon black N330 and the carbon black N880. In addition, the tensile strength, tear strength, elongation and the heat resistance property of the NBR materials increased significantly with the increase of the carbon-white, but the compression elastic modulus decreased with the increase of the carbon-white.

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Horse paws as raw material for fur industry

10.24264/icams-2020.iii.14 ◽

2020 ◽

Author(s):

Vera Radnaeva ◽

Dmitry Shalbuev ◽

Nikolay Sovetkin ◽

Khurelsukh Gaanbaatar ◽

Solongo Khosbayar ◽

...

Keyword(s):

Mechanical Properties ◽

Tensile Strength ◽

Moisture Content ◽

Chromium Oxide ◽

Negative Impact ◽

New Technology ◽

Treatment Options ◽

Raw Material ◽

Processing Technologies ◽

Regions Of Russia

Horse skin is used for processing various types of skin. However, paws of horse skin are not used as fur raw material. Usually they are burned or sent to landfills and may cause infectious diseases. It is possible to minimize negative impact on the environment by converting this waste into fur raw material. In cold regions of Russia high fur boots made of cattle and deer paws are very popular. The aim of the research is to study the possibility of using paws of horse skin as raw material for fur industry. Processing of horse paws based on well-known leather and fur processing technologies lead to semi-finished product characterized by increased stiffness and uneven properties on different skin parts. Such semi-finished product was not suitable for high fur boots manufacture. The aim of the research is to work out a new technology and study chemical and physico-mechanical properties. In the work various treatment options for horse paws and their properties are investigated: moisture content, amount of minerals and chromium oxide, pH of the aqueous extract, tensile strength, elongation at a voltage of 10 MPa, and stiffness are determined. The possibility of transferring horse paws from municipal solid waste into fur raw material is shown.

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Potensi Pemanfaatan Serat Selulosa sebagai Material Bahan Baku dalam Sintesis Filter Udara Non-Woven sesuai Standar TAPPI T 205

Jurnal Teknologika ◽

10.51132/teknologika.v10i2.80 ◽

2020 ◽

Vol 10 (2) ◽

pp. 37-42

Author(s):

Irwan Suriaman ◽

Mardiyati ◽

Jooned Hendrarsakti ◽

Ari Darmawan Pasek

Keyword(s):

Tensile Strength ◽

Natural Fiber ◽

Raw Materials ◽

Natural Fibers ◽

Morphological Characteristics ◽

Sem Analysis ◽

Raw Material ◽

Ramie Fiber ◽

Tropical Country ◽

Materials Used

Industry 4.0 era materials used by entrepreneurs should be recycled, environmentally friendly, renewable with less chemical content. Indonesia as a tropical country has a large land area with the potential to produce the largest natural fiber in the world. One opportunity that can be applied to the utilization of natural fibers in air filters that currently use dominant materials is synthetic fibers. natural fiber has the advantage because it does not contain toxic chemicals, local raw materials, and is easily produced. This research will analyze the mechanical and morphological characteristics of biological fibers that have great potential as pre-filter raw material. Analysis of mechanical properties through tensile strength testing for single fibers and morphological analysis through scanning electron microscopy (SEM). Tensile testing was the results are; palm oil has a tensile strength of 620 MPa; 998 MPa and 213 MPa flax coconut fiber. For the morphological test results from SEM analysis for ramie fiber, it looks solid without fiber holes; The fibers appear to be many small fibers bound to one another while coir fibers have many pore holes in one observed fiber.

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KAJIAN PENGARUH KONSENTRASI Rhizopus sp. SEBAGAI AGEN PENGIKIS PROTEIN TERHADAP MUTU KULIT IKAN GURAMI TERSAMAK

Jurnal Teknosains ◽

10.22146/teknosains.6003 ◽

2013 ◽

Vol 2 (2) ◽

Cited By ~ 1

Author(s):

Ratri Nur Hayati

Keyword(s):

Tensile Strength ◽

Protease Activity ◽

Oil Content ◽

Economic Value ◽

Consumer Acceptance ◽

Raw Material ◽

Shrinkage Temperature ◽

Tear Strength ◽

Randomized Design ◽

Rhizopus Sp

The study aimed to assess the effect of protease activity of Rhizopus sp. as a bating agent on the tanned carp leather quality, and their use for commercial leather products. The study was designed with a completely randomized design with four treatment, namely: the concentration of protease from Rhizopus sp. 0.5% (a1), 1.0% (a2), 1.5% (a3) and palkobat 1.0% (a4/control) with 3 replications. Parameters were observed that is (1) protease activity of Rhizopus sp and palcobat; (2) Thickness (mm), tensile strength (N/cm2), tear strength (N/cm), elongation (%), enervation (mm), shrinkage temperature (ºC), fat/oil content (%) of tanned leather; and (3) level of consumer acceptance (%) and added valuead of comercial leather product. The data of tanned leather quality is then compared with SNI 06-4586-1998 concenring freshwater snake skin leather and chrome Burk’s Bay (1996) on the raw material quality leather products. The test results of protease activity of Rhizopus sp. = 7.97 mg/50mg/ jam and palkobat = 13.62 mg/50 mg/hour. The results of the analysis of tanned leather carp qulity sample from each treatment and comparison with the SNI as follows: (1) Thickness: 0.41 (a1), 0.38 (a2), 0.43 (a3), 0.41mm (a4) and ≥ 0.22 (SNI 06-4586-1998). Tensile strength: 1682.67; 1818.17; 1195.57; 1670.55 and 1,000N/cm2 (SNI). Tear strength: 314.87; 310.95; 332.06; 462.22, and 150.00 N/cm (SNI). Elongation: 93.33; 62.67; 56.67; 97.33, and <30.00% (SNI). Enervation: 1.87; 2.20; 1.63, 2.49, and ≥ 2.0 mm (Burk’s Bay, 1996). Shrinkage temperature: 74.00; 95.33; 96.33; 97.33, and ≥ 70.33ºC (SNI). The fat/oil content: 7.84; 8.17; 5.25; 8.49, and 2.00 to 6.00% (SNI). All treatments were tested has met the SNI quality, except elongation and fat/oil content. The level of consumer acceptance of the Oval HP Cover that is (1) aspects of the display (76.67% like and 23.33% dislike), (2) the use of convenience (66.67% like and 33.33% dislike ), and (3) price (63.33% accepted and 23.67 reject). The level of consumer acceptance of the Box Cover HP models that is (1) aspects of the display (80.00% like and 20.00% dislike), (2) convenience of use (86.67% like and 13.33% dislike), and (3) price (66.67% accepted and 33.33% reject). The economic value of tanned carp leather as big as Rp 160.000/20 leather pieces and leather products as big as Rp 420,000 per 15 pieces of product.

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Dampak Pencemaran Udara Terhadap Kualitas Udara Di Provinsi Bali

Jurnal Ilmiah Vastuwidya ◽

10.47532/jiv.v2i2.86 ◽

2020 ◽

Vol 2 (2) ◽

pp. 20-30

Author(s):

Ni Putu Decy Arwini

Keyword(s):

Air Pollution ◽

Negative Impact ◽

Exhaust Emissions ◽

Raw Material ◽

Gas Content ◽

Motor Vehicles ◽

Vehicle Exhaust ◽

The One ◽

Renewable Natural Resource ◽

The Impact

The development of transportation technology now has made distance become increasingly meaningless, but without realizing there has been a degradation of the environment as a direct impact of the development of transportation technology. Exhaust emissions produced by each vehicle have now become the main source of pollution, which is about 70% of all factors causing pollution. Unconsciously that so far the air quality that is inhaled by the community has slowly decreased so that it is not realized until an adverse impact appears, then the community then realizes that there has been a very complicated problem as a result of transportation that is less environmentally friendly. Most of the fuel for transportation comes from refined petroleum which is a non-renewable natural resource so that on the one hand it has caused air pollution which greatly affects health besides the amount of raw material for fuel production of these vehicles is also running low so prices are set for consumption society also becomes more expensive.The purpose of this research is to find out how much the level of air pollution in Bali Province at several sample points as a result of motor vehicles, to find out the type and amount of hazardous gas content produced by motor vehicles in Bali Province, to determine the impact caused by the exhaust gas of the vehicle on the health of the respiratory tract of residents of the Province of Bali, as well as ways that can be taken to reduce the negative impact resulting from pollution caused by vehicle exhaust emissions.

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The utilization of sugarcane bagasse, cassava peels and corn husks in handmade paper production

JPBIO (Jurnal Pendidikan Biologi) ◽

10.31932/jpbio.v6i1.800 ◽

2021 ◽

Vol 6 (1) ◽

pp. 64-75

Author(s):

Aminah Asngad ◽

Santhyami Santhyami ◽

Ardiyana Rahma Pertiwi ◽

Carissa Rahmitasari

Keyword(s):

Tensile Strength ◽

Sugarcane Bagasse ◽

Testing Machine ◽

Raw Material ◽

Tapioca Starch ◽

Tear Strength ◽

Handmade Paper ◽

Corn Husk ◽

Cassava Peels ◽

Tear Resistance

High demands for trees as the raw material of paper can disrupt the stability of the environment. It is necessary to find alternatives from other materials which are more environmentally friendly. This study aims to determine the quality of paper made from combining sugarcane bagasse with cassava peels or with corn husks using PVAc or tapioca starch adhesives. A completely randomized 2 x 2 factorial design with five times replication was used. The parameters tested were the tensile and tear resistance of the paper using a micrometer and a universal testing machine. A sensory analysis from panelists was also conducted. The combination of J1P1 produced a paper with the highest tensile strength (11.30 MPa) and the highest tear strength (1.82 MPa). The combination of J2P2 produced a paper with the lowest tensile strength (10.35 MPa) and the lowest tear strength (1.62 MPa). Variance analysis showed that the type of adhesive used showed a significant result on both tensile and tear resistance but material choices and interaction between materials and adhesive choices was not significantly different from the result on both tensile and tear resistance. Sensory testing shows that the combination of J1P1 was preferred the most. It can be concluded that the combination of J1P1 appeared to be the best combination.Keywords: Handmade paper, sugarcane bagasse, cassava peels, corn husk, PVAc tapioca starch, adhesive

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Study of the use of kaolin waste as a partial substitute for fine aggregate in the production of concrete for pavers

South Florida Journal of Development ◽

10.46932/sfjdv2n2-106 ◽

2021 ◽

Vol 2 (2) ◽

pp. 2474-2489

Author(s):

Thyago Lima Souza ◽

Adriano Lopes Gualberto Filho ◽

Deividy Kaik de Lima Araujo ◽

Marcos André Lira Silva ◽

Marco Antônio Assis De Oliveira ◽

...

Keyword(s):

Tensile Strength ◽

Compressive Strength ◽

Water Absorption ◽

Construction Industry ◽

Strength Test ◽

Raw Material ◽

Fine Aggregate ◽

Tensile Strength Test ◽

Flexural Tensile Strength ◽

Simple Compression

The study of the use of kaolin waste has scientific and socio-environmental value by providing an appropriate destination, reducing the demand and consequent problems arising from its extraction, considering that the construction industry is a consumer of a significant amount of raw material. Thus, the study aims to replace the fine aggregate by kaolin waste in the proportions of 10%, 20% and 30%, verifying its feasibility for interlocking sidewalk pieces. The kaolin waste was used with and without fine material, and physical characterization tests of the materials were performed, and then the concrete pieces were subjected to tests of resistance to simple compression, water absorption and resistance to abrasion, as prescribed by ABNT NBR 9781:2013, and flexural tensile strength test, according to ABNT NBR 12142:2010. According to the results and analyzing the compressive strength at 28 days, the mixtures with replacement of 10% of fine aggregate by kaolin waste reached strengths greater than 35 MPa, an acceptable normative parameter, both for the waste with fines and without fines, making its use feasible.

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Technology of Free Chrome Tanning Process: Optimal Level of Formaldehyde as Tanning Agent for Mondol Stingray (Himantura gerrardi)

Leather and Footwear Journal ◽

10.24264/lfj.20.3.6 ◽

2020 ◽

Vol 20 (3) ◽

pp. 277-286

Author(s):

Laili Rachmawati ◽

Emiliana Anggriyani ◽

Nur Mutia Rosiati

Keyword(s):

Tensile Strength ◽

Optimal Level ◽

Raw Material ◽

Shrinkage Temperature ◽

Tear Strength ◽

Chrome Tanning ◽

Tanning Process ◽

High Level

Chrome (VI) has a high level of toxicity. Formaldehyde is potential to be developed as a substitute of chrome tanning agent. The aims of this study are to explain the amount of formaldehyde bound, shrinkage temperature, tensile strength, and tear strength on Mondol stingray (Himantura gerrardi) leather. Pickled mondol stingray has been used as raw material. The study was divided into 4 treatments, that is P.I (formaldehyde 2%), P.II (formaldehyde 4%), P.III (formaldehyde 6%), and P.IV (formaldehyde 8%). The method used is drum tanning. Shrinkage temperatures, tensile strength and tear strength of P.I and P.II are significantly different from P.III and P.IV, but P.I is not significantly different from P.II, whereas P.III is not significantly different from P.IV. P.III is shown to improve the quality of leather stingray more than P.I and P.II, and has fulfilled the requirements of leather stingray according to SNI. 06-6121-1999. It can be concluded that the optimal level of formaldehyde tanning agent that can be used as a chrome tanning agent substitute in tanning Mondol stingray skin is formaldehyde 8% (P.III).

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Ecological aspects of modernization of alcohol industry enterprises at the present stage of development

Environmental Problems ◽

10.23939/ep2020.03.179 ◽

2020 ◽

Vol 5 (3) ◽

pp. 179-184

Author(s):

Marianna Havryshko ◽

◽

Olena Popovych ◽

Halyna Yaremko ◽

◽

...

Keyword(s):

Wastewater Treatment ◽

Food Industry ◽

Ph Value ◽

Negative Impact ◽

Water Bodies ◽

Raw Material ◽

Present Stage ◽

Alcohol Industry ◽

Stage Of Development ◽

World Industry

At the present stage of development, the entire world industry has faced the problem of rational use of renewable natural resources, in particular the most efficient ways of wastewater treatment and the use of accumulated waste in the production process as a secondary raw material. In particular, the alcohol industry, as one of the components of food, medical, chemical and various industries,leads to the formation of huge amounts of waste, including wastewater. The food industry, like any other industry, has a negative impact on the environment. Water bodies are the most affected by the food industry. Almost the first place in terms of water consumption per unit of production is the production of alcohol. Consumption of large amounts of water leads to the formation of wastewater, which is highly polluted and adversely affects the environment. Due to the high chemical and biological consumption of oxygen, specific color and odor, suspended solids, low pH value, the purification of such waste in the filtration fields and discharge into water bodies is not possible. The purpose of our work is: 1) conducting the analysis of the alcohol industry potential in Ukraine in recent years, and methods of waste disposal as a potential source for the development of bioenergy. 2) environmental aspects of the alcohol industry modernization at present stage of development and implementation of modern wastewater treatment technologies.

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