Physical and Chemical Properties of Acacia mangium Lignin Isolated from Pulp Mill Byproduct for Potential Application in Wood Composites

Solihat, Nissa Nurfajrin; Santoso, Erdy; Karimah, Azizatul; Madyaratri, Elvara Windra; Sari, Fahriya Puspita; Falah, Faizatul; Iswanto, Apri Heri; Ismayati, Maya; Fatriasari, Widya; Antov, Petar; Savov, Viktor; Gajtanska, Milada; Syafii, Wasrin

doi:10.3390/polym14030491

Cited by 37 publications

(32 citation statements)

References 62 publications

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“…Lindi hitam kraft A. mangium yang diisolasi tersebut diperoleh langsung dari industri pada tahun 2017 tanpa penyimpanan. Solihat et al [31] juga berhasil melakukan isolasi lignin dari lindi hitam hasil proses pulping A. mangium dengan pengendapan asam (HCl 1 M) 1-tahap enam kali cuci dan 2-tahap. Berdasarkan penelitian tersebut diperoleh bahwa nilai rendemen dan kemurnian lignin tertinggi adalah melalui proses pengendapan asam 1-tahap enam kali cuci [31] .…”

Section: Pendahuluanunclassified

“…Pada penelitian ini lignin 1 dan 2 tahap diisolasi dari lindi hitam dengan cara pengenceran aquades lalu diendapkan menggunakan HCl 2M sampai pH 2. Karakteristik lignin yang diperoleh dibandingkan dengan penelitian sebelumnya yaitu isolasi lignin tanpa pengenceran [31] . Selain itu, perbandingan umur simpan BL selama 2 DOI: https://doi.org/10.25077/jrk.v13i2.506 1 tahap tanpa pengenceran 2 tahun penyimpanan [4] 45.76 8.25 -53.08 7.26.…”

Section: Hasil Dan Diskusiunclassified

“…2 tahap tanpa pengenceran 2 tahun penyimpanan [4] 1 tahap tanpa pengenceran 0 tahun penyimpanan [31] 2 tahap tanpa pengenceran 0 tahun penyimpanan [31] 7 Keterangan: * = Lignin tidak terlarut asam. **= Lignin terlarut asam tahun terhadap karakteristik lignin yang diperoleh juga dibandingkan dengan laporan sebelumnya [4] .…”

Section: Hasil Dan Diskusiunclassified

“…Rendemen lignin dihitung berdasarkan perbandingan bobot kering lignin dengan padatan total lindi hitam yang digunakan. Rendemen isolasi lignin tanpa pengenceran berdasarkan hasil penelitian Solihat [31] sejalan dengan Hermiati et al [4] , namun terjadi peningkatan rendemen isolasi lignin yang cukup signifikan dengan pengenceran berdasarkan penelitian ini. Lama penyimpanan lindi hitam berpengaruh terhadap rendemen lignin yang dihasilkan dimana pada Solihat et al [31] menghasilkan rendemen isolat yang lebih tinggi dibandingkan dengan Hermiati et al terutama pada lignin isolasi 2 tahap [4] .…”

Section: Rendemen Isolat Ligninunclassified

“…Faktor jumlah pencucian dalam tahap isolasi diduga berpengaruh terhadap hasil rendemen ini. Isolasi 1 tahap tanpa pengenceran pada Solihat et al [31] dilakukan 6 kali pencucian sedangkan pada Hermiati et al [4] dilakukan pencucian 3 kali pada tahap isolasi lignin 1 tahap. Pada penelitian ini juga dilakukan pencucian 3 kali pada proses isolasi lignin 1 tahap.…”

Section: Rendemen Isolat Ligninunclassified

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Pengaruh Lama Penyimpanan dan Pengenceran Lindi Hitam Terhadap Karakteristik Lignin Kraft Acacia mangium

Falah

Salsabila²,

Pradiani³

et al. 2022

J.Ris.Kim.

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This study aimed to investigate the effects of storage time and dilution of black liquor (BL) from Acacia mangium kraft pulping on the characteristics of isolated Lignin. Lignin isolation was carried out by 1 and 2 steps of isolation using HCL 1M to precipitate Lignin, diluted before isolation. Isolated Lignin was analyzed for its acid-soluble Lignin (ASL), insoluble acid lignin (AIL), functional groups by FTIR, solubility in dioxane and NaOH and thermal properties. The effect of BL storage time was also evaluated on the characteristics of the Lignin produced. The results suggest that the longer BL is stored, the higher the lignin yield. When compared to the isolation approach without dilution, the dilution process produced a higher yield and ash content up to 84% and 21%, respectively. Without dilution, the AIL isolated was lower than the dilution during BL storage. The longer the storage duration, the higher the lignin purity. Compared to two-step lignin isolation, dilution treatment in single-step isolation improves yield and purity. The thermal stability of lignin isolation without dilution (184 ⁰C and 167 ⁰C for 1 and 2 steps, respectively) was higher than that of isolated Lignin with dilution (154.8 ⁰C and 160.9 ⁰C for 1 and 2 steps, respectively), according to thermal study. Both lignin isolates with and without dilution have comparable functional groups, as shown by FTIR spectra. Due to the high yield and purity of isolated Lignin, BL dilution could be a viable alternative in lignin isolation from BL. Moreover, the properties of isolated Lignin are also influenced by BL storage.

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Section: Pendahuluanunclassified

Section: Hasil Dan Diskusiunclassified

Section: Rendemen Isolat Ligninunclassified

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Pengaruh Lama Penyimpanan dan Pengenceran Lindi Hitam Terhadap Karakteristik Lignin Kraft Acacia mangium

Falah

Salsabila²,

Pradiani³

et al. 2022

J.Ris.Kim.

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Mechanically Strong and Fast‐Curing Kraft Lignin‐Based Polyurethane Foam

Husna,

Ismayati,

Syafii

et al. 2024

J of Applied Polymer Sci

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The creation of biobased rigid polyurethane from nonfood resources such as lignin has garnered significant interest, especially concerning the biorefinery concept. However, few studies have investigated virgin lignin as a polyol source for polyurethane foam and the effects of single factors, such as the lignin solvent, lignin concentration, and lignin:isocyanate ratio, on the properties of polyurethane. High‐density rigid foam (~500 kg/m3) was successfully formed by all the solvents except sodium hydroxide, which was confirmed via Fourier transform infrared (FTIR) spectroscopy and pyrolysis‐gas chromatography–mass spectrometry (Py‐GCMS). The highest to lowest modulus of elasticity (MOE) and modulus of rupture (MOR) values for the different lignin solvents were as follows: tetrahydrofuran (THF) (402.25 and 13.24 N/mm2) > dimethyl formamide (DMF) (46 and 1.69 N/mm2) > dimethyl sulfoxide (DMSO) (29 and 1.39 N/mm2). DMSO was selected as the optimal solvent because of the considerable curing time (26.67 s) needed to produce rigid foam. A higher lignin concentration resulted in better physical, mechanical, and thermal properties of the foam to some extent. Moreover, the opposite occurred with increasing isocyanate ratio in the system. These findings can serve as a basis for optimizing the utilization of lignin as a bioresource in the manufacture of rigid polyurethane foam with more specific uses.

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Recent developments in lignin modification and its application in lignin‐based green composites: A review

Agustiany

Ridho

et al. 2022

Polymer Composites

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Lignins are the most important aromatic renewable natural resource today, serving as a sustainable, environmentally acceptable alternative feedstock to fossil‐derived chemicals and polymers in a vast scope of value‐added applications. Lignin is a biopolymeric molecule that, together with cellulose, is a fundamental component of higher vascular plants structural cell walls. It can be extracted from by‐products of the pulp and paper industries, agricultural waste and residues, and biorefinery products. Lignin properties may vary depending on source and extraction method with carbon and aromatic as the main compositions in lignin structure. These rich compositions make lignin more valuable, allowing for the creation of high‐value‐added green composites. However, the complex structure of lignin creates low reactivity to interact with crosslinker, and hence chemical modification is substantial to overcome this problem. This review aimed to present and discuss lignin structure, variation of lignin chemical properties regarding its source and extraction process, recent advances in chemical modification of lignin to enhance its reactivity, and potential applications of modified lignin for manufacturing value‐added biocomposites with enhanced properties and lower environmental impact, such as food handling/packaging, seed coating, automotive devices, 3D printing, rubber industry, and wood adhesives.

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Physical and Chemical Properties of Acacia mangium Lignin Isolated from Pulp Mill Byproduct for Potential Application in Wood Composites

Cited by 37 publications

References 62 publications

Pengaruh Lama Penyimpanan dan Pengenceran Lindi Hitam Terhadap Karakteristik Lignin Kraft Acacia mangium

Pengaruh Lama Penyimpanan dan Pengenceran Lindi Hitam Terhadap Karakteristik Lignin Kraft Acacia mangium

Mechanically Strong and Fast‐Curing Kraft Lignin‐Based Polyurethane Foam

Recent developments in lignin modification and its application in lignin‐based green composites: A review

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