Majalah Kulit, Karet, dan Plastik最新文献_第3页

Effect of natural zeolite as substrate filler on the properties of NBR/EPDM blend 天然沸石作为基体填料对NBR/EPDM共混物性能的影响

Majalah Kulit, Karet, dan Plastik Pub Date : 2019-07-29 DOI: 10.20543/MKKP.V35I1.4759

H. E. Mayasari, N. M. Setyadewi

引用次数: 1

Characteristics of natural rubber/latex compound waste (NR/LCW) blends in the perspective of shoe soles application 从鞋底应用的角度看天然橡胶/乳胶复合废弃物（NR/LCW）共混物的特性

Majalah Kulit, Karet, dan Plastik Pub Date : 2019-07-29 DOI: 10.20543/MKKP.V35I1.4347

I. N. Indrajati, I. Setyorini, Indah Kumalasari

引用次数: 2

Kualitas gelatin yang diproduksi dari limbah proses shaving kulit domba menggunakan curing HCl dengan konsentrasi dan waktu yang berbeda 明胶是用用不同浓度和时间的聚氯乙烯生产出来的

Majalah Kulit, Karet, dan Plastik Pub Date : 2019-07-29 DOI: 10.20543/MKKP.V35I1.4502

Jajang Gumilar, W. S. Putranto, Eka Wulandari

引用次数: 0

Extraction of fat/oil from fleshing by-product using a wet rendering process and combination with organic solvents 采用湿法和有机溶剂相结合的方法从肉制品中提取脂肪/油

Majalah Kulit, Karet, dan Plastik Pub Date : 2019-07-29 DOI: 10.20543/MKKP.V35I1.4629

S. Sugihartono, Dona Rahmawati, A. Priatni, Efa Radnawati

{"title":"Extraction of fat/oil from fleshing by-product using a wet rendering process and combination with organic solvents","authors":"S. Sugihartono, Dona Rahmawati, A. Priatni, Efa Radnawati","doi":"10.20543/MKKP.V35I1.4629","DOIUrl":"https://doi.org/10.20543/MKKP.V35I1.4629","url":null,"abstract":"The extraction of fat/oil from fleshing by-products using moist heating (boiled and steamed) produces a fat that contains large amounts of impurities and which is bluish color, whereas when using fatty solvents, it is necessary to dry the ingredients. The purpose of this study was to determine the fat/oil characteristics from fleshing by-products extracted using a combination of wet rendering (temperatures of 80, 90 and 100 °C, and times 1, 2 and 3 hours) with n-hexane. The combined treatment of wet rendering (temperature 90 °C and duration 2 hours) with n-hexane gave rise to the production of fat with the highest yield (11.10% w/w). The higher the temperature and the longer the wet rendering process, results in fat with higher levels of free fatty acid and the saponification value, but the lower the number of peroxides and the darker the color. The fats/oils consist of 37 fatty acid compounds, composed of saturated and unsaturated fatty acids. There are six very present fatty acid compounds, namely butyric acid methyl ester, tetradecanoic acid methyl ester, cis-10-pentadecanoic acid methyl ester, palmitoleic acid methyl ester, octadecanoic acid methyl ester and trans-9-elaidic acid methyl ester.","PeriodicalId":18167,"journal":{"name":"Majalah Kulit, Karet, dan Plastik","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41909153","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Performance of binary accelarator system on natural rubber compound 天然橡胶复合材料二元加速器系统的性能

Majalah Kulit, Karet, dan Plastik Pub Date : 2019-01-23 DOI: 10.20543/MKKP.V34I2.4049

I. N. Indrajati, I. R. Dewi

引用次数: 3

Effect of depolymerized block skim rubber (BSR) on the physical properties of modified asphalt 解聚块段脱脂橡胶（BSR）对改性沥青物理性能的影响

Majalah Kulit, Karet, dan Plastik Pub Date : 2019-01-23 DOI: 10.20543/MKKP.V34I2.4179

A. Ramadhan, A. Cifriadi, H. Prastanto, N. A. Kinasih

{"title":"Effect of depolymerized block skim rubber (BSR) on the physical properties of modified asphalt","authors":"A. Ramadhan, A. Cifriadi, H. Prastanto, N. A. Kinasih","doi":"10.20543/MKKP.V34I2.4179","DOIUrl":"https://doi.org/10.20543/MKKP.V34I2.4179","url":null,"abstract":"The asphalt pavement susceptibility was influenced by traffic load and temperature. Therefore, modified asphalt has been done to improve the asphalt performance. Depolymerized block skim rubber (BSR) was used as asphalt modifier. BSR is a low quality crumb rubber, which made from skim (byproduct of creamed latex). This investigation aims to determine effect of depolymerization of BSR on the physical performance of modified asphalt. Initially, BSR was depolymerized by mechanical action (mastication) with different time of 8, 16, and 24 min. Then, the asphalt modifier, depolymerized BSR was added to asphalt with different ratio 3, 5, 7%. The softening point and mixing time of asphalt were compared with modified asphalt. The performance of modified asphalt showed that asphalt modifiers increased the softening point and mixing time of asphalt. Maximum softening point reached 54.30C by 7% BSR (16 min. of mastication time). The modified asphalt had 25.70C softening point higher than asphalt. It was conclude that depolymerized BSR can increase the performance of asphalt (softening point), although increase the mixing time of it. Moreover, it could give alternative to reduce cost of modified asphalt pavement making.","PeriodicalId":18167,"journal":{"name":"Majalah Kulit, Karet, dan Plastik","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49657674","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

Studi awal tanin dari kulit kayu Acacia auriculiformis A. Cunn. ex Benth. dari hutan tanaman industri untuk bahan penyamak kulit 巴西椰子皮单宁的早期研究。ex Benth。从工业林木到制革

Majalah Kulit, Karet, dan Plastik Pub Date : 2019-01-23 DOI: 10.20543/MKKP.V34I2.3967

Sri Mutiar, Anwar Kasim, E. Emriadi, A. Asben

{"title":"Studi awal tanin dari kulit kayu Acacia auriculiformis A. Cunn. ex Benth. dari hutan tanaman industri untuk bahan penyamak kulit","authors":"Sri Mutiar, Anwar Kasim, E. Emriadi, A. Asben","doi":"10.20543/MKKP.V34I2.3967","DOIUrl":"https://doi.org/10.20543/MKKP.V34I2.3967","url":null,"abstract":"Penelitian ini bertujuan untuk mengetahui kandungan tanin dan metode ekstraksi terhadap karakteristik dan kadar tanin dari kulit kayu Acacia auriculiformis A. Cunn. ex Benth. Kulit kayu diperoleh dari HTI PT. Arara Abadi. Metode ekstrak yang digunakan water bath , ultrasonic bath , autoclave , refluks dan microwave . Ekstrak tanin yang dihasilkan diaplikasikan sebagai bahan penyamak nabati. Ekstrak yang digunakan adalah rendemen tertinggi dari metode yang digunakan. Hasil penelitian menunjukkan bahwa rendemen tertinggi diperoleh dengan metode autoclave yaitu 29,65%. Hasil analisis kimia dari ekstrak yang dihasilkan kadar tanin adalah 52,79%, bahan larut air 62,40%. Aplikasi ekstrak tanin sebagai bahan penyamak nabati menggunakan kulit kambing dilakukan analisis kimia, pengamatan sifat fisik dan organoleptis. Kualitas kulit tersamak ditinjau dari sifat kimia diantaranya kadar air 15,02%, kadar lemak 3,20%, kadar abu 3,44%, kadar zat larut air 3,57%, kadar zat kulit mentah 43,79%, kadar tanin terikat 30,98% dan derajat penyamakan 70,74%. Pengamatan sifat fisik kulit tersamak yaitu kekuatan tarik 254,21 kg/cm 2 , kemuluran 63,95%, ketahanan zwik/keretakan 9,27 mm (nerf tidak pecah), ketebalan 0,9 mm, warna coklat. Ekstrak kulit kayu A. auriculiformis mengandung tanin dan berpotensi untuk digunakan sebagai bahan penyamak kulit.","PeriodicalId":18167,"journal":{"name":"Majalah Kulit, Karet, dan Plastik","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41458431","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Cara pengolahan limbah cair brown crepe untuk menurunkan bahan pencemar 提取褐色皱纹液降低污染物的方法

Majalah Kulit, Karet, dan Plastik Pub Date : 2019-01-23 DOI: 10.20543/MKKP.V34I2.3899

S. Sutyasmi, Ike Setyorini, P. Prayitno

引用次数: 4

Pengaruh penambahan pati tapioka terhadap sifat mekanis dan struktur komposit high density polyethylene

Majalah Kulit, Karet, dan Plastik Pub Date : 2019-01-23 DOI: 10.20543/mkkp.v34i2.4138

Dwi Wahini Nurhajati, Ihda Novia Indrajati, Hesty Eka Mayasari, M. Sholeh

引用次数: 4

Sintesis dan karakterisasi minyak kelapa sawit untuk agensia peminyakan pada penyamakan kulit 油棕对皮肤分泌物的合成和特性

Majalah Kulit, Karet, dan Plastik Pub Date : 2018-09-17 DOI: 10.20543/MKKP.V34I1.3893

E. Kasmudjiastuti, G. Griyanitasari, Dona Rahmawati, Sugihartono Sugihartono

{"title":"Sintesis dan karakterisasi minyak kelapa sawit untuk agensia peminyakan pada penyamakan kulit","authors":"E. Kasmudjiastuti, G. Griyanitasari, Dona Rahmawati, Sugihartono Sugihartono","doi":"10.20543/MKKP.V34I1.3893","DOIUrl":"https://doi.org/10.20543/MKKP.V34I1.3893","url":null,"abstract":"Fungsi minyak pada proses peminyakan kulit untuk menjaga agar serat kulit tetap terpisah selama proses pengeringan dan untuk mengurangi gaya gesekan dalam tenunan serat, sehingga kulit menjadi fleksibel. Tujuan penelitian untuk mensintesis minyak kelapa sawit menjadi minyak sulfat melalui proses sulfatasi dan karakterisasi minyak kelapa sawit dan minyak sulfat yang dihasilkan dari proses sulfatasi. Metode yang dilakukan meliputi sintesis minyak kelapa sawit menggunakan 25% H2SO4 selama 3 jam, suhu <20oC, kecepatan 300 rpm. Hasil karakterisasi minyak kelapa sawit menunjukkan angka Iodin 49,95 mg I2/minyak; asam lemak bebas 0,05%; kadar air 0,18%; angka peroksida 16,23 mg/kg; angka asam 0,19 mg KOH/gr. Asam lemak jenuh yang dominan adalah metil palmitat dan metil butirat, sedangkan asam lemak tidak jenuh yang dominan cis-9-oleic methyl ester dan metil linoleat. Minyak sulfat yang dihasilkan mempunyai kadar air 6,47%; pH 8; kadar minyak 81,28%; total alkalinitas 0,25%, angka penyabunan 192,74%; kadar abu 2,77% dan kadar SO3 terikat 7,68%. Hasil uji kekuatan tarik kulit tersamak adalah 286,50 kg/cm2 dan kemuluran 63,33%. Kata kunci: minyak kelapa sawit, asam sulfat, sulfonasi, minyak sulfat, peminyakan.","PeriodicalId":18167,"journal":{"name":"Majalah Kulit, Karet, dan Plastik","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41605854","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2