Biodegradation of Composites of Polylactic Acid and Microfibrillated Lignocellulose

被引：17

作者：

Yetis, Ferhat ^{[1
]}

Liu, Xuqing ^{[1
]}

Sampson, William W. ^{[1
]}

Gong, R. Hugh ^{[1
]}

机构：

[1] Univ Manchester, Dept Mat, Oxford Rd, Manchester M13 9PL, Lancs, England

来源：

JOURNAL OF POLYMERS AND THE ENVIRONMENT | 2023年 / 31卷 / 02期

关键词：

Polylactic acid; Biocomposites; Microfibrillated lignocellulose; Soil biodegradation; Viscoelastic properties; MODIFIED CELLULOSE NANOCRYSTALS; POLY(LACTIC ACID); DEGRADATION RATE; RESIDUAL LIGNIN; WOOD NANOFIBERS; PLA; NANOCOMPOSITES; BEHAVIOR; STARCH;

D O I：

10.1007/s10924-022-02583-2

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

We present a study of the controlled biodegradation of polylactic acid (PLA) reinforced with high lignin containing microfibrillated cellulose (MFLC) isolated from chemi-thermomechanical pulp. The surface of MFLC was modified using an acetylation method to decrease its polarity. Biocomposites with different MFLC and acetylated MFLC (Ac-MFLC) contents were fabricated via a solvent casting method. The biodegradation of biocomposites was performed by burying in soil and holding at 45 degrees C for 30 days. After soil burial, MFLC/biocomposites exhibited higher weight loss (5.4 %) compared to neat PLA (4.2 %) and Ac-MFLC/biocomposites (4.6 %). Morphological analysis results showed surface erosion of the PLA to change with the addition MFLC and Ac-MFLC, resulting in porous formations on the surface of biocomposites. These formations led to the loosening of microfibril-PLA interface in the internal structure, resulting in a significant decrease in the storage modulus of biocomposites. The biocomposites exhibited no antimicrobial properties, confirming their biotic degradability. [GRAPHICS] .

引用

页码：698 / 708

页数：11

共 56 条

[1] High-strength nanocomposite based on fibrillated chemi-thermomechanical pulp [J].

Abe, Kentaro ;

Nakatsubo, Fumiaki ;

Yano, Hiroyuki .

COMPOSITES SCIENCE AND TECHNOLOGY, 2009, 69 (14) :2434-2437

[2] Key role of mild sulfonation of pine sawdust in the production of lignin containing microfibrillated cellulose by ultrafine wet grinding [J].

Ammala, Ari ;

Laitinen, Ossi ;

Sirvio, Juho Antti ;

Liimatainen, Henrikki .

INDUSTRIAL CROPS AND PRODUCTS, 2019, 140

[3] Lignin as a functional additive in a biocomposite: Influence on mechanical properties of polylactic acid composites [J].

Anugwom, Ikenna ;

Lahtela, Ville ;

Kallioinen, Mari ;

Karki, Timo .

INDUSTRIAL CROPS AND PRODUCTS, 2019, 140

[4] Preliminary Characterization of a Polycaprolactone-SurgihoneyRO Electrospun Mesh for Skin Tissue Engineering [J].

Aslan, Enes ;

Vyas, Cian ;

Yupanqui Mieles, Joel ;

Humphreys, Gavin ;

Diver, Carl ;

Bartolo, Paulo .

MATERIALS, 2022, 15 (01)

[5] The degree of acetylation affects the microbial degradability of mannans [J].

Bi, Ran ;

Berglund, Jennie ;

Vilaplana, Francisco ;

McKee, Lauren S. ;

Henriksson, Gunnar .

POLYMER DEGRADATION AND STABILITY, 2016, 133 :36-46

[6] Poly(lactic acid)/natural rubber/cellulose nanocrystal bionanocomposites. Part II: Properties evaluation [J].

Bitinis, Natacha ;

Fortunati, Elena ;

Verdejo, Raquel ;

Bras, Julien ;

Maria Kenny, Jose ;

Torre, Luigi ;

Angel Lopez-Manchado, Miguel .

CARBOHYDRATE POLYMERS, 2013, 96 (02) :621-627

[7] Massive plastic pollution in a mega-river of a developing country: Sediment deposition and ingestion by fish (Prochilodus lineatus) [J].

Blettler, Martin C. M. ;

Garello, Nicolas ;

Ginon, Lea ;

Abrial, Elie ;

Espinola, Luis A. ;

Wantzen, Karl M. .

ENVIRONMENTAL POLLUTION, 2019, 255

[8] The use of a pilot-scale continuous paper process for fire retardant cellulose-kaolinite nanocomposites [J].

Castro, D. O. ;

Karim, Z. ;

Medina, L. ;

Haggstrom, J-O ;

Carosio, F. ;

Svedberg, A. ;

Wagberg, L. ;

Soderberg, D. ;

Berglund, L. A. .

COMPOSITES SCIENCE AND TECHNOLOGY, 2018, 162 :215-224

[9] Current research trends on plastic pollution and ecological impacts on the soil ecosystem: A review [J].

Chae, Yooeun ;

An, Youn-Joo .

ENVIRONMENTAL POLLUTION, 2018, 240 :387-395

[10] Insights into the biodegradation of PHA/wood composites: Micro- and macroscopic changes [J].

Chan, Clement Matthew ;

Vandi, Luigi-Jules ;

Pratt, Steven ;

Halley, Peter ;

Richardson, Desmond ;

Werker, Alan ;

Laycock, Bronwyn .

SUSTAINABLE MATERIALS AND TECHNOLOGIES, 2019, 21

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