Mechanical and thermal properties of compatibilized composites of polyethylene and esterified lignin

Sailaja, R. R. N.; Deepthi, M. V.

doi:10.1016/j.matdes.2010.03.046

Cited by 143 publications

(114 citation statements)

References 26 publications

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“…The miscibility of lignin-phthalate with LDPE was improved by the application of maleic anhydride grafted polyethylene as compatibilizer [180]. Ethylene-vinyl-alcohol (EVOH), maleic anhydride grafted polyethylene (MAPE) and ethylene acrylic ester maleic anhydride terpolymer (AEMAPE) compatibilizers decreased the average size of dispersed mimosa and pine bark tannin particles in LLDPE, which led to the increased thermooxidative stability of the samples [124].…”

Section: Application In Polymersmentioning

confidence: 99%

Natural antioxidants as stabilizers for polymers

Kirschweng

Tátraaljai

Földes

et al. 2017

Polymer Degradation and Stability

165

126

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Section: Application In Polymersmentioning

confidence: 99%

Natural antioxidants as stabilizers for polymers

Kirschweng

Tátraaljai

Földes

et al. 2017

Polymer Degradation and Stability

165

126

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“…Meningkatnya massa yang tersisa ini disebabkan karena struktur kimia lignin yang kurang berkontribusi terhadap kemampuan terbakar suatu material yang disebabkan karena tingginya kemampuan menjadi arang dan rendahnya pelepasan panas ketika dibakar 2,39 sehingga lignin sendiri dapat berfungsi sebagai flame retardant 37 . Hal ini menunjukkan bahwa semakin banyak komposisi lignin yang ditambahkan ke dalam biokomposit PLA/ Lignin, maka kandungan arang akan semakin banyak pula 16,18,40 dan dapat mengakibatkan massa yang tersisa cenderung akan semakin banyak.…”

Section: Hasil Dan Pembahasanunclassified

Pengaruh Penambahan Lignin Terhadap Stabilitas Termal Biokomposit Poliasam Laktat / Lignin

Ghozali¹,

Irawan²,

Waskitoaji³

2018

J. Penelit Pascapanen Pertan

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ABSTRAKBiomassa merupakan sumber daya alam terbarukan yang ketersediaanya sangat melimpah di Indonesia yang memiliki potensi besar untuk dikembangkan sebagai polimer biodegradabel terbarukan. Poliasam laktat atau polylactic acid (PLA) dan lignin merupakan material polimer biodegradabel yang secara ekonomi memiliki potensi yang sangat besar untuk dikembangkan. Penelitian ini bertujuan untuk mempelajari pengaruh penambahan lignin terhadap stabilitas termal biokomposit PLA/Lignin. Pembuatan biokomposit PLA/ Lignin dilakukan dengan cara mencampurkan PLA dengan lignin dalam rheomix dengan suhu 200ºC, kecepatan pengadukan 70 rpm selama 30 menit. Komposisi lignin yang ditambahkan adalah 5, 10, 15 dan 20 phr. Analisis menggunakan Fourier Transform Infra Red (FTIR) dilakukan untuk menentukan gugus fungsi biokomposit PLA/Lignin. Stabilitas termal biokomposit PLA/Lignin dipelajari menggunakan Termogravimetric Analysis (TGA). Hasil analisa stabilitas termal menunjukkan degradasi termal utama biokomposit PLA/Lignin pada berbagai komposisi terjadi pada rentang suhu 230-360°C. Penambahan lignin ke dalam biokomposit PLA/Lignin akan meningkatkan massa tersisa sehingga dapat meningkatkan stabilitas termal biokomposit PLA/Lignin tersebut. Meningkatnya massa yang tersisa ini disebabkan oleh struktur kimia lignin, yang menunjukkan kurang berkontribusi terhadap kemampuan terbakar material yang disebabkan karena tingginya kemampuan menjadi arang dan rendahnya pelepasan panas ketika dibakar, sehingga sangat berpotensi digunakan sebagai flame retardant untuk berbagai aplikasi. Biomass is a highly abundant renewable natural resource available in Indonesia that holds great potential to be developed as a renewable biodegradable polymer. Polylactic acid (PLA) and lignin are among of those biodegradable polymer materials with a great potential of economic value to be developed. This research is purposed to study the effect of lignin addition on thermal stability of PLA/Lignin biocomposites. PLA/Lignin biocomposites has been manufactured by mixing PLA and lignin into rheomix at a temperature of 200°C with a stirring speed of 70 rpm for 30 minutes. The composition of lignin added was 5, 10, 15 and 20 phr. Fourier Transform Infra-Red (FTIR) spectrum analysis was conducted to determine the functional groups of PLA/Lignin biocomposites.The thermal stability was analyzed by termogravimetric analysis (TGA) and the results showed that the main thermal degradation occurred in temperature range of 230-360°C. The addition of lignin into PLA/Lignin biocomposites could increase residual mass which improves the thermal stability of PLA/Lignin bicomposites. The increase in the residual mass was due to the chemical structure of lignin, which indicates the less contribution to the material's burning ability due to its high ability to become charcoal and low heat release when burned, making it potentially used as a flame retardant for various applications.

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“…204 Esterifi cation of lignin was also attempted to increase the compatibility of lignin and olefi n. Esterifi ed lignin, was produced by the reaction between lignin and phthalic anhydride in the presence of pyridine, was blended with low-density polyethylene. 205 A polyolefi n is a nonpolar polymer that is immiscible with polar polymers that have polar functionalities such as hydroxyl groups, carbonyl groups, amines and many more. Therefore, using polar/nonpolar copolymers as a compatibilizer is a common method used to increase the miscibility of a polyolefi n blend.…”

Section: Polyolefi Nmentioning

confidence: 99%

Chemistry of lignin-based materials

2013

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There is a need for renewable resources as a raw material for commodity polymers. Lignin is one of the most important natural biopolymers from renewable resources due to its suffi cient supply, robust material properties and the fact that its use does not compete with the food supply. Lignin has been investigated since the late 19th century, but its applications are limited due to poor processability, low reactivity and intrinsic heterogeneity depending on the plant source and isolation methods used. Current strategies for using lignin in modern materials center on integrating it with other natural or synthetic polymers. This review article introduces the technological importance of lignin and focuses on copolymers and blends based on lignin in a broad range of applications.

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Mechanical and thermal properties of compatibilized composites of polyethylene and esterified lignin

Cited by 143 publications

References 26 publications

Natural antioxidants as stabilizers for polymers

Natural antioxidants as stabilizers for polymers

Pengaruh Penambahan Lignin Terhadap Stabilitas Termal Biokomposit Poliasam Laktat / Lignin

Chemistry of lignin-based materials

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