Functionalization of cyclic natural rubber grafted maleic anhydride (cnr-g-ma) with variation of ma concentration, inisiator and reaction time

Sitanggang, Boy Chandra; Eddyanto, Eddyanto

doi:10.24114/jpkim.v11i3.15736

Cited by 3 publications

(3 citation statements)

References 7 publications

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“…MA can be grafted on polymer chains by using benzoyl peroxide and toluene with proper control of concentration, reaction time and temperature. [64][65][66] Therefore, MA can be called dispersant or dispersion-aid for most polymer nanocomposites. MA also improves thermal, mechanical, dielectric properties of polymer composite materials.…”

Section: Surface Modification Of Cntsmentioning

confidence: 99%

A review of recent advances on the properties of polypropylene - carbon nanotubes composites

Uyor

Popoola

et al. 2022

Journal of Thermoplastic Composite Materials

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Polypropylene (PP) has a wide range of engineering applications in automobile, biomedical, energy, machine parts, electronic packaging etc. However, PP lacks some desired engineering properties such as good thermal properties and mechanical strength. For instance, PP is known for its low melting temperature, high flammability and low heat resistance. This has resulted in continuous improvement in various properties of PP via modification of its matrix. One of the ways this has been achieved is by incorporation of foreign bodies in form of reinforcements in the PP matrix. The recent discovery of carbon nanotubes (CNTs) has further paved the ways for advancing the properties of PP via the development of PP-CNTs composites. Such composites have not only shown improved engineering properties but retain the lightweight and flexibility of PP. The advanced engineering properties recorded by various studies using PP-CNTs composites are due to the good properties of PP in conjunction with the excellent properties of CNTs such as high thermal conductivity, strength, electron mobility and formation of conductivity networks in the PP matrix. Although the development of PP-CNTs composites faces challenges of high agglomeration and incompatibility of CNTs in the matrix, the moves towards addressing the hurdles and achievements recorded so far are encouraging. Therefore, this review investigated the contribution of CNTs on various advanced engineering properties of PP-CNTs composites. Various results drawn from previously published literature within the decade were tabulated for future academic references and industrial purposes. Current hurdles faced by PP-CNTs composites, future prospect and their advanced engineering applications were discussed.

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Section: Surface Modification Of Cntsmentioning

confidence: 99%

A review of recent advances on the properties of polypropylene - carbon nanotubes composites

Uyor

Popoola

et al. 2022

Journal of Thermoplastic Composite Materials

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“…Untuk meningkatkan kompatibilitas dan kereaktifan dalam proses pencampuran, modifikasi kimia yang paling umum dilakukan yaitu maleanisasi (Zeng et al, 2010), (Said Siregar et al, 2014), (Soleimani et al, 2020), (Sitanggang & Eddyanto, 2019). Maleanisasi karet alam dapat melalui proses grafting molekul Anhidrida Maleat (AM) kedalam struktur karet alam dan telah banyak dilakukan untuk menghasilkan produk sesuai dengan spesifikasi yang diharapkan.…”

Section: Pendahuluanunclassified

Pencangkokan Anhidrida Maleat Pada Karet Alam Siklis : Penambahan Divinil Benzen untuk Meningkatkan Derajat Pencangkokan

Siregar¹,

Astuti²,

Fuadi³

et al. 2021

j.res.technol.ind.

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Derajat pencangkokan anhidrida maleat pada karet alam siklis secara umum masih rendah, yang disebabkan kurangnya densitas elektron ikatan rangkap anhidrida maleat sehingga reaktifitasnya rendah. Penelitian ini bertujuan untuk meningkatkan derajat pencangkokan dengan penambahan komonomer divinil benzen. Pada penelitian ini dilakukan penambahan anhidrida maleat 2, 4, 8 dan 16 phr dengan dan tanpa komonomer divinil benzen di dalam pencampur internal suhu 150 o C dan kecepatan rotor 80 rpm. Untuk mempelajari pengaruh penambahan komonomer divinil benzene maka ditambahkan anhidrida maleat 16 phr dan komonomer divinil benzen dengan variasi masing-masing: 0,5, 1 dan 2 rasio mol. Produk pencangkokan dikarakterisasi dengan fourier transform infra red untuk melihat terjadinya pencangkokan anhidrida maleat pada karet alam siklis. Kemudian derajat pencangkokan ditentukan dengan metode titrasi menggunakan NaOH 0,05 M. Dari spektrum FT-IR dapat dilihat bahwa telah terjadi pencangkokan anhidrida maleat pada karet alam siklis dengan adanya serapan khas pada bilangan gelombang 1780 cm -1 . Dari perhitungan hasil titrasi diperoleh bahwa derajat pencangkokan meningkat dengan penambahan divinil benzen. Dengan penambahan divinil benzen sebanyak 0,5; 1 dan 2 mol rasio maka derajat pencangkokan meningkat dari 3,57% menjadi masing-masing 4,46%; 5,46% dan 6,54%.

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“…Modification of CNR by grafting using Maleic Anhydride (AM) monomer has been successfully carried out by several researchers (Zhao et al 2018;Ritonga et al 2019). Based on the Fourier Transformed Infra-Red/FTIR spectral data of the grafted product, the maleate group was successfully grafted onto the CNR structure with the appearance of absorption at 1780 cm-1 and 1841 cm-1 which is a typical carbonyl absorption of the maleate group (Sitanggang & Eddyanto, 2019;Eddiyanto, 2007;Siregar et al 2014;Siregar, 2015;Siregar et al 2019;Siregar et al 2021a;Siregar et al 2021b). To increase the degree of grafting, styrene comonomers (Siregar et al 2014), divinylbenzene (Siregar et al 2019;Siregar et al 2021a;Siregar et al 2021b) and Trimethylol Propane Triacrylate (Siregar et al 2019;Siregar et al 2021) have been used.…”

Section: Introductionmentioning

confidence: 99%

Study on the thermal properties of the grafted product of maleic anhydride onto clylized natural rubber by using thermogravimetric method

et al. 2022

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This study aims to investigate the thermal properties of grafted products of maleic anhydride onto cyclized natural rubber. The grafting was carried out in the melt phase at an internal mixer of 150 oC and a rotor speed of 80 rpm. A total of 16 phr maleic anhydride was reacted with cyclized natural rubber in the present and absence of divinylbenzene comonomer with various mole ratios: 0.5, 1, and 2. The grafted products were characterized by the thermogravimetric method to investigate their thermal properties. Based on the results of the thermogravimetric analysis, it was shown that the sample increased its thermal stability. The sample decomposes at a higher temperature with the increasing mole ratio of divinylbenzene added. The grafted product with 16 phr maleic anhydride decomposed at 489.41 oC. Then, the graft product samples with the addition of 0.5, 1, and the 2-mole ratio of divinylbenzene comonomers decomposed at: 501.62 oC, 514.39 oC, and 520.82 oC, respectively.

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Functionalization of cyclic natural rubber grafted maleic anhydride (cnr-g-ma) with variation of ma concentration, inisiator and reaction time

Cited by 3 publications

References 7 publications

A review of recent advances on the properties of polypropylene - carbon nanotubes composites

A review of recent advances on the properties of polypropylene - carbon nanotubes composites

Pencangkokan Anhidrida Maleat Pada Karet Alam Siklis : Penambahan Divinil Benzen untuk Meningkatkan Derajat Pencangkokan

Study on the thermal properties of the grafted product of maleic anhydride onto clylized natural rubber by using thermogravimetric method

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