[1] Zuhra, Cut Fatimah. Karet. Medan: Departemen Kimia, Fakultas Matematika dan Ilmu Pengetahuan Alam: Universitas Sumatera Utara. 2006.
[2] Borges, Felipe Azevedo, Luis Felipe Cesar Bolognesi, Alberto Trecco, de Camargo Drago, Larisa Baldo de Arruda, Paulo Noronha Lisboa Filho, Elaise Gonçalves Pierri, Carlos Frederico de Oliveira Graeff, André Gonzaga dos Santos, Matheus Carlos Romeiro Miranda, and Rondinelli Donizetti Herculano. Natural Rubber:
Study of a Novel Carrier for Case ariasyl vestris Swartz Delivery. Hindawi Publishing Corporation. 2014.
[3] Baharin, A., Pun, M. Y., Ahmad, M. M. Y., nd N ir, Z. . “ ddition of Over Cured L tex to Compounded Uncompounded nd Prevulc ni ed H ”. Natural Rubber Curing Development In Product Manufacture andApplications : A report of proceeding of the International Rubber Technology Conference, RRIM. 1993.
[4] Sury , Indr ., Widy n t ., d n Ind h, MS. Sitoru ., “ Pengaruh Penambahan Alkonol Amida terhadap Sifat-Sifat Uji Tarik Vulkanisat Karet Alam Berpengisi Koalin”, Vol. 2, No. 4. F kult Teknik. Juru n Teknik Kimi USU. 2013.
[5] Egwaikhide, . P., kporhonor, E. E., nd Okieimen, F. E. “The Characterization of Carbonised Coconut Fibre as Fillers in Natural Rubber Formulations”.Trends in Applied Sciences Research, 3(1). 2008
[6] H ll, W. J., Z k ri , N., nd Willi m , P. T. “Aplication of fatty alcohols and derivative in Industry”. Waste management, 29(2) : 797-803. 2009.
[7]Kinasih, A. W. Norma., dan Cifriadi, Adi., “Perkembangan Riset dan Penggunaan Minyak Nabati Terepoksidasi sebagai Bahan Pemlastis Karet dan Plastik ”,Warta Perkaretan, Pusat Penelitian Karet, Vol. 32(1), Hal. 46-54, 2013.
[8] Nurhajati, Dwi, Wahini., Supraptiningsih., dan Sarengat, Nursamsi, “Pengaruh Pemlastis Nabati terhadap Sifat Elastomer Termoplastik Berbasis Campuran Karet Alam/Polipropilena”, Majalah Kulit, Karet, dan Platik, Vol. 31, Hal. 75-84, 2015.
[9] R hm ni r., Priy nto, G tot d n H mz h, B uni, “Pembu t n Kompon K ret deng n Pen mb h n Miny k Kemiri (C ndlenut Oil) Epok i”, Dinamika Penelitian BIPA, Vol. 20, No. 35, 2009.
38 Universitas Sumatera Utara
[10] Peter P. W. Weiss MSc., PhD., C.Chem., FRSC. A Literature Review And A Survey of The Major Allergens in Household Products Rubber Taken from The German Retail Market. Intern tion l Children’ Medic l Re e rch Society, 56 Middleton H ll Ro d, Kings Norton, Birmingham. 2010.
[11] Rasyidi., Puji Astuti., dan Tri Gita Puspitasari. Pengaruh Pertumbuhan dan perkembangan Lahan Garap Komoditas Karet ., DPPI.,No. 15, hal 1. vol. 19. 2013.
[12] Warma., Budi.,. Faktor Integrasi Budidaya Karet ., DPPI.,No. 17, hal 1. vol. 18.
2014.
[13] K to, H y to, Fumi ki N k t ubo, Kent ro be nd Hiroyuki Y no. “Crosslinking Via Sulfur Vulcanization of Natural Rubber and Cellulose Nanofibers Incorporating Unsaturated Fatty Acids”. RSC dv nce , Vol. 4, 29814-29819. 2015.
[14] Sung. 2007. Preparation, Characterization and Properties of Waste Ferrite Filled Rubber Composites. Thesis. Malaysia : Universiti Sains Malaysia.
[15] Prem, Abi Santhosh, Kuruvilla Joseph, Thomas Mathew, Volker Altsaedt dan Sabu Thomas. “Studies on Accelerated Sulphur Vulcanization of Natural Rubber Using 1-Phenyl-2,4-dithiobiuret/terturary Butyl Benzothiazole Sulphenamide”. European Polymer Journal, 39, 1451-1460. 2003.
[16] Q m rin , M. SitiNord n M. Y. mir H him. “Zinc-Complexes in Natural Rubber Sulphur Vulc niz tion Sy tem”. Journal of Rubber Research, Vol. 12 (2). 2009.
[17] Afiq, M.M.. A.R. Azura. ”Effect of Sago Starch Loadings on Soil Decomposition of Natural Rubber Latex (NRL) Composite Films Mechanical Properties.”.
International Biodeterioriation & Biodegradation. Page. 139-149. 2013
[18] Afiq, M.M.. A.R. Azura. ”Effect of Sago Starch Loadings on Soil Decomposition of Natural Rubber Latex (NRL) Composite Films Mechanical Properties”. International Biodeterioriation & Biodegradation. Page. 160-162. 2013
[19] Chandrasekaran, V.C. Essential Rubber Formulary. William Andrew Publishing.
United States of America. 2007.
[20] Ganjali, Saeed Taghvaei, Mercedeh Malekzadeh, Ali Abbasiandan Morteza Khosravi. “Effect of Different Activator Systems on Cure Characteristics andPhysicomechanical Properties of a NR/SBR Blend”.Iranian Polymer Journal8 (5), 415-425. 2009.
39
Universitas Sumatera Utara
[21]Surya, Indra., Ismail, H., dan Azura, A. R, “ Alkanolamide asa an Accelerator, Filler-Dispersant and a Plasticizer in Silica-Filled Natural Rubber Compounds”,Polymer Testing, Vol. 32, hal. 1313-1321, 2013
[22] Arayapranee, Wanvimon. Rubber Abrasion Resistance. Rangsit University:
Thailand. 2009.
[23] Allcock, H.R. Contemporary Polymer Chemistry. Pearson Education International, New Jersey. 2003.
[24] Hildayanti., dkk, “Sintetis dan Karakterisasi Bahan Komposit Karet Alam-Silika”,MIPA Fisika. Institut Teknologi Sepuluh November, 2009.
[25] Hepburn, C. Elastomers :Cirteria For Engineering Design. Applied Science Publishers, London. 1979.
[26] Ekasari, Ratna. Penetrasi Perkutan In Vitro Dispersi Padat Pentagamavunon-0 (Pgv-0) Dengan Bantuan Pemplastis Kompleks Polivinilpirolidon (Pvp) Dalam Sediaan Gel Hidroksipropil Metil Celulosa (Hpmc). Skripsi: Universitas Muhammadiyah Surakarta. 2008.
[27] H ll, W. J., Z k ri , N., nd Willi m , P. T. “Aplication of fatty alcohols and derivative in Industry”. Waste management, 29(2) : 797-803. 2009.
[28] Yuliawati, Komalasari. Formulasi Minyak Atsiri Temulawak Krim Salep. BPKP.
2008.
[29] Santika, Nurma dan Diah Indah. Penetrasi Applicationof Stearil Alcohol as Emulsifier. BPKP. 2008.
[30] H ll, W. J., Z k ri , N., nd Willi m , P. T. “Aplication of fatty alcohols and derivative in Industry”. Waste management, 29(2) : 804-809. 2009.
[31] Suryani, A., I. Sailah., dan E. Hambali. 2000.Teknologi emulsi. Jurusan Teknologi Industri Pertanian, Fakultas TeknologiPertanian. Institut Pertanian Bogor.
[32] Afifah, N. dan A.K. Mirwan. 2008. Uji stabilitas emulsi body lotion menggunakan cetearyl alcohol/ ceteareth 20 sebagai self emulsifier. Dalam: Prosiding seminar nasional sains dan teknologi Universitas Lampung: 481-488.
[33] Lim, Hong Ngae, A. Kassim, A. Sharif, D. Kuang,A. Yarmo, Z. Edris, R. Ismail, and H.NMing. 2008. Palm based steryl alcohol ethoxylate behavioural study and recomendations in personal car applications. The malaysian journal of analytical sciences, Vol 12 (3) : 536-541.
40
Universitas Sumatera Utara
[34] Bukit, N. and Frida, E., 2013, The Effect Zeolite Addition in Natural Rubber Polypropylene Composite on Mechanical, Structure, and Thermal Characteristics, Makara Seri Teknologi, 2013, 17(3): (in press).
[35] Ting, Sam Sung. 2007. Preparation, Characterization and Properties of Waste Ferrite Filled Rubber Composites. Thesis. Malaysia : Universiti Sains Malaysia.
[36] Harahap, H. The Effect of Filler Loading Microcrystalline Cellulose from Cassava Peel Waste with Alkanolamidein Natural Rubber Latex Products. International Postgraduate Conference on Materials, Mineral and Polymer (MAMIP). 2015.
[37] Demir, H.; tikler, U.; B lkö e, D. nd Tıhmınlıoğlu, F., 2006, The effect of fiber surface treatments on the tensile and water sorption properties of polypropylene–
luffa fiber composites, Composites: Part A 37 (Elsevier): 447–456.
[38] Woodhams, R. T., Law, S., dan Balatineez, J. J. 1990. Properties and Possible Applications of Wood Fiber-Polypropylene Composites. Proceedings Symposium on Wood Adhesives. Madison
[39] Wahid, Zaharah. Potential For Process Improvement of the Rubber Glove Manufacturing Process – an Industrial Case Study. Thesis.Tyne :University of Newcastle. 1998.
[40] Subash. N.And C. Sasikumar. Eco - Friendly Synthesis Of Silver Nano Particle From Leaf Extract Of Azadirachta Indica And Micrograff Scanning Electron Microcope , Volume 2, Issue 7, 986-990. 2014.
[41] Sury , Indr ., I m il, H., d n zur , . R, “ lk nol mide n cceler tor, Filler-Dispersant and a Plasticizer in Silica-Filled N tur l Rubber Compound ”, Polymer Testing, Vol. 32, hal. 1313-1321, 2013.
[42] Arayapranee, Wanvimon. Rubber Abrasion Resistance. Rangsit University:
Thailand. 2009.
[43] Lloyd, D.G,” Use of Monsanto Rheometer for Quality Control of Raw and Compounded Natural Rubber”, Journal of the Rubber Research Institute of Malaya, Vol. 22, Part.4, 1969.
[44] Ciesielski, A. An Introduction to Rubber Technology, Rapra Technology Limited, United Kingdom. 1999.
[45] Kamil, E., Khoesoema, E., dan Harahap, H. “Pengaruh Biodegradasi Dengan Teknik Penanaman Pada Produk Karet Alam Berpengisi Tepung Kulit Pisang Yang
41
Universitas Sumatera Utara
Diputihkan Dengan Hidrogen Peroksida”. Jurnal Teknik Kimia USU Vol. 1, No. 2.
2012.
[46] Coran, Aubert Y. Vulcanization. Elsevier Academic Press. California. 2005.
[47] Aprem, Abi Santhosh, Kuruvilla Joseph, Thomas Mathew, Volker Altsaedt dan Sabu Thomas. “Studies on Accelerated Sulphur Vulcanization of Natural Rubber Using 1-Phenyl-2,4-dithiobiuret/terturary Butyl Benzothiazole Sulphenamide”. European Polymer Journal, 39, 1451-1460. 2003.
[48] Heideman, Geert. 2004. Reduced Zinc Oxide Levels in Sulphur Vulcanization of Rubber Compounds. Thesis. Netherlands : University of Twente.
[49] Habibi, Youssef., L A Lucia., O J Rojas. Cellulose Nanocrystals: Chemistry, Self-Rubber Vicocity Mooney and Applications. North Carolina State Universty. 2009.
[50] Habibi, Youssef., L A Lucia., O J Rojas. Cellulose Nanocrystals: Chemistry, Self-Rubber Vicocity Mooney and Applications. North Carolina State Universty. 2009.
[51] Chen, Guo; Zhang, Bin; Zhao, Jun. Dispertion Process and Effect of Oleic Acid on Properties of Cellulose Sulfate-Oleic Acid Composit Film. Materials. No. 8, 2346-2360. 2015.
[52] Atkinson, F.C. Corncob Cellulose as Internal Plastisazer, US Patent 1472318, United Patent Office. 1923.
[53] Supraptiningsih, A. (2005). Pengaruh RSS/SBR dan filler CaCO3 terhadap sifat fisis Kompon Karpet Karet. Majalah kulit karet danPlastik. 21(1):3.
[54] Teh, P.L., Ishak, Z.A. Mohd., Hashim, A.S., Karger-Kocsis, J., dan Ishiaku, U.S, Rubber”.Polymer Degradation and Stability, 76, 275-279. 2002.
[56] Sury , Indr ., I m il, H., d n zur , . R, “ Alkanolamide asa an Accelerator, Filler-Dispersant and a Plasticizer in Silica-Filled Natural Rubber Compounds”, Polymer Testing, Vol. 32, hal. 1313-1321, 2013.
42
Universitas Sumatera Utara
[57] Dalimunthe, Vivi Handayani. Penentuan KandunganPadatan Total (%TSC) Pekatdan Pengaruhnya terhadap Kekuatan Tarik Benang Karet Di PT. IKN-MEDAN. Medan: Universitas Sumatera Utara. 2008.
[58] Putera, Rizky Dirga Harya. 2012. Ekstraksi Serat Selulosa Dari Tanaman Eceng Gondok (Eichornia Crassipes) Dengan Ariasi Pelarut sebagai Pelunak Kompon.
Program Studi Teknik Kimia Depok. Depok: Universitas Indonesia.
[59] Marpongahtun dan Gea, Saharman. Studi Penyediaan Nanokristal Selulosa dari Tandan Kosong Sawit (TKS). Jurnal Saintia Kimia Vol. 1, No. 2. 2013.
[60] Yahya, Siti Rohana; Hamdan, Farah Nadiah; Rashid, Azura A.; Azahari, Bahari. The Effect Pre-Vulcanization Temperature on Mechanical and Rheological Properties of Starch Filled Natural Rubber Latex Compounds. Advanced Materials Research.
2014. Vol 858, 184-189. 2014.
[61] Yahya, Siti Rohana; Hamdan, Farah Nadiah; Rashid, Azura A.; Azahari, Bahari. The Effect Pre-Vulcanization Temperature on Mechanical and Rheological Properties of Starch Filled Natural Rubber Latex Compounds. Advanced Materials Research.
2014. Vol 858, 184-189. 2014.
[62] Wirjosentono, B., Sitompul A.N., Sumarno., Siregar T.A., dan Lubis, S.B.
Analisadan Karakterisasi Polimer, USU Press, Medan. 2010.
[63] Sebastian, M. Sunney. 2005. Studies on The Production, Properties and Processability of Low Protein. Thesis.India : Rubber Research Institute.
[64] Setiawati, Septami., Berlian Sitorus dan Mariana B Malino. Synthetic and Characterization of Natural Rubber Composite – Dispertion Cellulose from Oil Palm Bunches with Cellulosic Mass Variations.No. 8, 2346-2360. 2012.
[65] Sury , Indr ., H. I m il., d n . R. zur , “The Effect of lk nol mide Lo ding on Properties of Carbon Black-Filledd Natural Rubber (SMR-L), Epoxidised Natural Rubber (ENR), and Styrene-But diene Rubber (SBR) Compound ” Polymer Testing, Vol.42,Hal.208-214,2015
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LAMPIRAN A DATA PENELITIAN
A.1 Data Hasil Analisis Rheograf Tabel A.1 Data hasil analisis rheograf
Kompon
A.2 Data Hasil Analisis Sifat-Sifat Uji Tarik Tabel A.2 Data hasil analisis modulus tarik
Kompon
A.3 Data Hasil Analisis Ketahanan Kikis Tabel A.3 Data hasil analisis ketahanan kikis
Kompon (bsk) Abrasion loss (cm3)
45 A.4 Data Hasil Analisis Swelling Percentage
Tabel A.4 Data hasil analisis swelling percentage Kompon
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LAMPIRAN B
CONTOH PERHITUNGAN
Untuk pengujian modulus tarik, kuat tarik, pemanjangan saat putus dan ketahanan abrasi sudah dihitung oleh universal testing machine.
B.1 Perhitungan Swelling percentage
Berikut persamaan untuk menghitung swelling percentage vulkanisat karet:
S (%) = 𝑀∞
𝑀0 x 100%
Untuk perhitungan swelling percentage sampel:
Massa sampel sesudah perendaman = 1,8428 gr Massa sampel setelah pengeringan = 0,4806 gr Massa sampel sebelum perendaman = 0,6485 gr
Swelling percentage (%) = 𝑀∞
𝑀0 x 100%
Swelling percentage (%) = 1,8428−0,4806
0,6485 x 100%
= 2,1005 %
B.2 Perhitungan Derajat Dispersi Silika
Berikut persamaan untuk menghitung derajat dispersi silika:
L= ηr - mr
L=𝑀𝐿𝑓
𝑀𝐿𝑔−𝑀𝐻𝑓
𝑀𝐻𝑔
Untuk perhitungan derajat dispersi sampel:
Tork minimum sampel = 2,74 Tork maksimum sampel = 11,38
Tork minimum vulkanisat karet alam = 0,05 Tork maksimum vulkanisat karet alam = 4,85
L = 2,74
0,05− 11,38
4,852,74
= 52,42
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LAMPIRAN C
DOKUMENTASI PENELITIAN
C.1 Spesimen Uji Tarik
Gambar C.1 Spesimen uji tarik C.2 Perendaman Sampel Dalam Toluena
Gambar C.2 Perendaman sampel dalam toluena
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