Effect of the Surface modification of Cellulose nanofibers on the Mechanical Properties and Disintegrability of Specific PLA/Cellulose Composites

Justyna Wietecha; Janusz Kazimierczak; Agata Jeziorna

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Effect of the Surface modification of Cellulose nanofibers on the Mechanical Properties and Disintegrability of Specific PLA/Cellulose Composites

Justyna Wietecha

Janusz Kazimierczak

oraz

Agata Jeziorna

| 15 gru 2023

Fibres & Textiles in Eastern Europe

Tom 31 (2023): Zeszyt 6 (December 2023)

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Article Category: Research Article

Data publikacji: 15 gru 2023

Zakres stron: 15 - 29

DOI: https://doi.org/10.2478/ftee-2023-0051

Słowa kluczowe
PLA, cellulose nanofibres, surfactants, green composites

© 2023 Łukasiewicz Research Network-Łódź Institute of Technology, published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Chemical structure of a) polylactide chain, b) cellulose chain

Partially saponified fatty acid methyl esters of castor oil – ZS1 (simplified formula). a) Structure of ricinoleic acid as the main component of castor oil; b) possible products of the transesterification reaction of ricinoleic acid

Chemical structure of sucrose palmitate - P1670

SEM images of NFC samples functionalized with three different compatibilizers after spray drying; a) NFC/ZS1 – 50 μm scale bar (upper picture ) and 10 μm (lower picture); b) NFC/CTAB - 20 μm scale bar (upper picture ) and 5 μm (lower picture); c) NFC/ P1670 - 20 μm scale bar (uooer picture ) and 5 μm (lower picture)

Comparison of PXRD diffractograms of unmodified and surfactant modified NFC powder samples

SEM images of particles of cellulose nanofibers modified with surfactants after re-dispersion in water: a) NFC/ZS1, b) NFC/CTAB, c) NFC/P1670

Photos of composite foils (c-f) and reference samples of pure PLA (a-b)

Optical transmittance of neat PLA and PLA CNF composite films (with CNF fibers modified with various surfactants)

PXRD diffractograms of pure PLA and PLA NFC/surfactants films

DSC (bottom blue line) and TG (top green line) graphs of pure PLA (a-b) and PLA with unmodified NFC (c) and PLA NFC/ surfactants films (d-f)

Tensile strength and elongation at break of neat PLA and PLA/NFC composite films

Photos and diagram of mass loss of composite foils and reference samples of pure PLA crystalline and PLA amorphic forms after 2 and 3 weeks of composting

Disintegrability of PLA NFC composites and reference samples of pure PLA films over time

Physicochemical characteristics of PLA 6201D

Density, g/cm3	1,24
Melting point, °C	155-170
Glass transition point, °C	55-60
Contents of D-lactide isomer(%)	1,4

TGA and DSC thermal characteristic of pure PLA and PLA NFC/surfactant composites

Sample	TG					DSC
Sample	T₁ [°C]	T _inf [°C]	T₂ [°C]	Δm [%]		T_g[°C]	ΔC_p [J/g*K]	T_cc [°C]	ΔH_cc [J/g]	T_m [°C]	ΔH_m [J/g]
PLA_crystalline	99,1	122,9	136,7	-3,3		54,1	0,22	–	–	155,3	28,1
PLA_amorphic	77,6	108,0	130,9	-2,2	-3,5	57,9	0,54	117,6	-19,8	153,6	20,1
PLA_amorphic	142,5	156,5	165,5	-1,3	-3,5	57,9	0,54	117,6	-19,8	153,6	20,1
PLA NFC/0	76,6	110,3	145,3	-3,5		59,0	0,59	122,1	-16,0	154,4	16,1
PLA NFC/ZS1	81,5	109,5	147,0	-5,0		52,4	0,60	116,0	-18,3	154,3	18,4
PLA NFC/CTAB	90,3	111,2	133,8	-3,7		59,2	0,60	119,3	-18,2	154,6	18,2
PLA NFC/P 1670	92,6	113,1	137,4	-4,2		57,6	0,60	116,3	-17,8	154,6	17,8

eISSN:: 2300-7354
Język:: Angielski

Częstotliwość wydawania:: 6 razy w roku
Dziedziny czasopisma:: Business and Economics, Business Management, Business Informatics, Process Management, Industrial Chemistry, Cellulose, Paper and Textiles, Polymer Science and Technology, Materials Sciences, Biomaterials and Natural Materials

Kanał RSS czasopisma

Effect of the Surface modification of Cellulose nanofibers on the Mechanical Properties and Disintegrability of Specific PLA/Cellulose Composites

Article Category: Research Article

Data publikacji: 15 gru 2023

Zakres stron: 15 - 29

DOI: https://doi.org/10.2478/ftee-2023-0051

Słowa kluczowe
PLA, cellulose nanofibres, surfactants, green composites

© 2023 Łukasiewicz Research Network-Łódź Institute of Technology, published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

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Fig. 10.

Physicochemical characteristics of PLA 6201D

TGA and DSC thermal characteristic of pure PLA and PLA NFC/surfactant composites

Effect of the Surface modification of Cellulose nanofibers on the Mechanical Properties and Disintegrability of Specific PLA/Cellulose Composites

Article Category: Research Article

Data publikacji: 15 gru 2023

Zakres stron: 15 - 29

DOI: https://doi.org/10.2478/ftee-2023-0051

Słowa kluczowePLA, cellulose nanofibres, surfactants, green composites

© 2023 Łukasiewicz Research Network-Łódź Institute of Technology, published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Fig. 1.

Fig. 2.

Fig. 3.

Fig. 4.

Fig. 5.

Fig. 6.

Fig. 7.

Fig. 8.

Fig. 9.

Fig. 10.

Fig. 11.

Fig. 8.

Fig. 9.

Fig. 10.

Physicochemical characteristics of PLA 6201D

TGA and DSC thermal characteristic of pure PLA and PLA NFC/surfactant composites

Słowa kluczowe
PLA, cellulose nanofibres, surfactants, green composites