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    Stabilisasi Oksidasi Termal pada Nanokomposit Olipropilena/Monmorilonite dengan Antioksidan Komersial dan Sintesa Antioksidan Amina Aromatis Sebagai Stabiliser yang Substantif pada Karet Alam Sirklis

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    Date
    2016
    Author
    Siregar, Arofah Megasari
    Advisor(s)
    Alfian, Zul
    Wirjosentono, Basuki
    Nainggolan, Hamonangan
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    Abstract
    Research has been done using the commercial antioxidants for the stabilization of thermal oxidation on the polymer nanocomposite PP and PP / MMT and modified aromatic amine antioxidant compound by the method of Michael addition and Friedel Craft's to produce antioxidants that can be tied to a chain of natural rubber cyclically. Nanocomposite preparation is done in an internal mixer at a temperatureof 180 C for 10 min and rotor speed of 65 rpm. Measurement of the degree of degradation degree of oxidation was measured by using FTIR besarn carbonyl index. Effect of antioxidant concentration has also been carried out in this research. Modification of antioxidant products were analyzed by FTIR method. This new antioxidant effectiveness in comparison with conventional antioxidants with FTIR test. The results obtained indicate that the antioxidant Piperidinol and B225 which is a mixture of Irganox 1010 / Irganox 1076 1: 1 is very effective to restrain the rate of degradation of the nanocomposite polypropylene and PP / MMT. While the antioxidant Irganox acid and Irganox Alcohol less effective.
     
    Telah dilakukan penelitian penggunaan antioksidan komersial untuk stabilisasi oksidasi termal pada polimer PP dan nanokomposit PP/MMT dan modifikasi antioksidan senyawa amina aromatis dengan metode Michael addition dan Friedel Craft’s menghasilkan antioksidan yang dapat diikatkan pada rantai karet alam siklis. Preparasi nanokomposit dilakukan dalam internal mixer pada temperatur 180oC selama 10 menit dan kecepatan rotor 65 rpm. Pengukuran derajat derajat degradasi oksidasi diukur melalui besarn indeks karbonil menggunakan FTIR. Pengaruh konsentrasi antioksidan juga telah dilakukan dalam penelitian ini. Produk modifikasi antioksidan tersebut dianalisa dengan metode FTIR. Efektifitas antioksidan baru ini akan dibandingkan dengan antioksidan konvensional dengan uji FTIR. Diperoleh hasil bahwa antioksidan Piperidinol dan B225 yang merupakan campura Irganox 1010/ Irganox 1076 1:1 sangat efektif untuk menahan laju degradasi pada polipropilena dan nanokomposit PP/MMT. Sedangkan antioksidan irganox acid dan Irganox Alkohol kurang efektif.

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    https://repositori.usu.ac.id/handle/123456789/9763
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    • Doctoral Dissertations [102]

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    Repositori Institusi Universitas Sumatera Utara (RI-USU)
    Universitas Sumatera Utara | Perpustakaan | Resource Guide | Katalog Perpustakaan
    DSpace software copyright © 2002-2016  DuraSpace
    Contact Us | Send Feedback
    Theme by 
    Atmire NV