SUSTAINABLE BIO-BASED PLA/LIGNOCELLULOSE WASTE COMPOSITE MATERIAL FOR IMPROVING WATER RETENTION CAPACITY OF SOIL

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28610%2F22%3A63561798" target="_blank" >RIV/70883521:28610/22:63561798 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

SUSTAINABLE BIO-BASED PLA/LIGNOCELLULOSE WASTE COMPOSITE MATERIAL FOR IMPROVING WATER RETENTION CAPACITY OF SOIL

Original language description

One of the most promising strategies for conserving water in agriculture is the use of water biopolymeric absorbent polymers. This work reports the preparation and characterization of absorbent material based on low molecular weight poly(lactic acid) (PLA) and residual biomass from the agriculture and wood industry (wheat straw and wood sawdust) cross-linked with carboxylic citric acid for improvement of the water retention capacity of the soil. The mechanical and structural properties of the material was characterized using differential scanning calorimetry, thermo-gravimetric analysis, Fourier-transform infrared spectroscopy (FTIR) and scanning electron microscopy techniques (SEM). The swelling properties of the absorption material as well as its efficiency to retain water in the soil was also investigated using water retention study. The rate of biodegradation in the soil and the changes in chemical and morphological properties of the crosslinked material during biodegradation was monitored by gas chromatography, gel permeation chromatography, FTIR and SEM techniques. The results of this study show that water retention capacity of the soil may be increased by almost 20% after application of 1% w/w PLA/lignocellulose waste material to the soil. The crosslinked structure of the material is capable to swell/de-swell water many times indicating its good reusability.

Czech name

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Czech description

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Type

O - Miscellaneous

CEP classification

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OECD FORD branch

20903 - Bioproducts (products that are manufactured using biological material as feedstock) biomaterials, bioplastics, biofuels, bioderived bulk and fine chemicals, bio-derived novel materials

Project

<a href="/en/project/QK1910392" target="_blank" >QK1910392: Environmentally friendly soil conservation materials for the crop production intensification based on renewable resource</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2022

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů