Effect of Graft copolymerization of oleic acid on to cyclic natural rubber in polyamide

Aritonang, Barita; Tamrin,; Wirjosentono, Basuki; Eddiyanto,

doi:10.1016/j.csite.2020.100690

Cited by 13 publications

(10 citation statements)

References 35 publications

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“…Benzoyl peroxide, xylene, ethanol, acetone, and methanol were obtained from Merck (Darmstadt, Germany). Oleic acid-grafted linear low-density polyethylene (LLDPE-g-OA) was prepared based on the methods conducted in prior work [17][18].…”

Section: Methodsmentioning

confidence: 99%

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Improvement of Mechanical, Thermal, and Morphological Properties of Organo-Precipitated Calcium Carbonate Filled LLDPE/Cyclic Natural Rubber Composites

et al. 2021

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This study investigates the improvement of the mechanical, thermal, and morphological properties of linear low-density polyethylene (LLDPE)/cyclic natural rubber (CNR) after the addition of organo-precipitated calcium carbonate (O-PCC). The impact on the properties of the LLDPE/CNR/LLDPE-g-OA/O-PCC composites was investigated by a series of empirical experiments. First, the polymer composite was blended in the molten state using an internal mixer with a heating temperature of 160 °C and a rotation speed of 100 rpm. The LLDPE was placed in a chamber of internal mixer until melted, followed by CNR, LLDPE-g-OA, and O-PCC. The polymer composites with an O-PCC concentration of 5% obtained the optimal mechanical properties compared to other variations, with a tensile strength of 17.17 MPa and Young's modulus of 252.68 MPa. The presence of O-PCC resulted in better thermal stability and a change in the melting point temperature of 124 °C. The FTIR spectra of the polymer composite showed the specific characteristics of O-PCC at 872.1 cm–1. The morphology of the polymer composite indicates that the O-PCC is evenly dispersed in the polymer composite.

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Section: Methodsmentioning

confidence: 99%

“…The LCC blends showed a T m of 123 °C, which indicates that the addition of OPCC/PCC fillers resulted in a higher T m than those without fillers. All samples are semi-crystalline because endothermic peaks have formed, and no transitions occur before the T m [18]. Data analysis of the TGA and DTG curves is summarized in Table 2.…”

Section: Thermal Analysismentioning

confidence: 99%

Improvement of Mechanical, Thermal, and Morphological Properties of Organo-Precipitated Calcium Carbonate Filled LLDPE/Cyclic Natural Rubber Composites

et al. 2021

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“…Asam oleat dan stirena merupakan monomer penghubung yang telah digunakan untuk meningkatkan derajat pencangkokan AM pada polimer. Pada pencangkokan anhidrida maleat pada karet alam siklis telah digunakan komonomer asam oleat (Ritonga et al, 2019), (Aritonang et al, 2020a), (Aritonang et al, 2020b).…”

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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“…The peak wave number 2889.28 cm -1 indicates the presence of a hydrocarbon group (C-H) (Aritonang et al 2020b). The peak wave number 1604.20 cm -1 indicates the presence of a carboxyl group and the peak wave number is 1326.34 cm -1 .…”

Section: Ft-ir Analysismentioning

confidence: 99%

“…According to, the O-H functional group is very strong at a wavenumber of 3312.04 cm -1 . According toAritonang et al (2019), at a wavelength of 3700-3100 cm -1 is an OH group which indicates the formation of a hydrogen bond group between hydrogen atoms in one group of hydroxyl groups and another glucose monomer in the cellulose polymer chain(Aritonang et al 2020a).The peak wave number 2889.28 cm -1 indicates the presence of a hydrocarbon group (C-H)(Aritonang et al 2020b). The peak wave number 1604.20 cm -1 indicates the presence of a carboxyl group and the peak wave number is 1326.34 cm -1 .…”

mentioning

confidence: 99%

Paper making and characterization from waste coconut and tofu dregs

Gultom

Hestina

Florentina

et al. 2021

JPKim

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Research on paper made from coconut and tofu waste has been carried out using the alkalization method of separation technique, with the optimum composition as follows: NaOH concentration used is 3.0% and cooking temperature is 100 0C and the time required is 90 minutes. The results of the catheterization test of paper made from coconut dregs and tofu have a water content of 3.2%; pH 6.9, pulp content 65.75%; cellulose content 80.22%; lignin content 18.27%. The results of the FT-IR spectrum analysis of coconut pulp and tofu pulp are suitable for use as raw materials for making paper because they contain cellulose fibers. This is indicated by the appearance of the O-H hydroxyl group which is observed at a wavenumber of 3312 cm-1. Based on the SEM results, the surface morphology of the coconut pulp and tofu combination paper shows that the surface structure is the denser the fiber bonds, the smaller the fiber diameter, the better the mechanical properties. The results of the research conclusions explain that, paper made from coconut and tofu waste has met the requirements set by SNI 14-0444-1989. Keywords: Paper, Cellulose, Coconut pulp, Tofu pulp, Lignin

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Effect of Graft copolymerization of oleic acid on to cyclic natural rubber in polyamide

Cited by 13 publications

References 35 publications

Improvement of Mechanical, Thermal, and Morphological Properties of Organo-Precipitated Calcium Carbonate Filled LLDPE/Cyclic Natural Rubber Composites

Improvement of Mechanical, Thermal, and Morphological Properties of Organo-Precipitated Calcium Carbonate Filled LLDPE/Cyclic Natural Rubber Composites

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

Paper making and characterization from waste coconut and tofu dregs

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