Degradable Nursery Containers Made of Rice Husk and Cornstarch Composites

Abstract

The degradation behavior was investigated for eco-composite nursery containers (NCs) prepared with rice husk and cornstarch adhesive modified with urea formaldehyde (UF) as a wet strength agent. The wet shear strength, water absorption capacities, and biological degradation of NCs within soil were also investigated. Quantitative analysis of the thermal degradation behavior of different NC versions was performed by thermo-gravimetric analysis (TGA). The results demonstrated that the introduction of the UF agent accelerated the soil degradation of the NCs matrix to a certain extent. The maximum cumulative mass loss was 51.1% when the UF content of NCs was 8 wt.%. Moreover, the dry strength of the mixed urea formaldehyde-cornstarch adhesive (UCA) was increased by 108.9% compared with cornstarch adhesive (CA). The results of this work indicate the improved biodegradability of the NC ecocomposites, which could make them potential sustainable alternatives for conventional plastic pots.

The effect of anaerobic digestate derived composts on the metabolite composition and thermal behaviour of rosemary

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Optimization of technique parameters of pneumatic molding for rice straw bowl tray

“…Enhuui Sun et al, took rice husk and corn starch as the main raw materials and prepared biomass seeding trays by urea aldehyde modification, the thermal degradation behavior of different seedling containers was quantified by thermal weightlessness, the results showed that the compound urea formaldehyde-maize starch adhesive is 108.9% stronger than the maize starch adhesive and has good biodegradation properties [ 14 ]. Biomass seeding trays were made using the sunflower seed and rice shell as the substrate by P. Postemsky et al, and evaluated the role of two types of seedling bowl tray in tomato seedling transplanting, cultivate seedlings and production, which showed that the effect of sunflower shell seeding bowl tray on tomato growth and development, flowering and early fruit production were comparable to the control group [ 15 ].…”

Structural Design and Performance Test of Biomass-Based Nursery Trays

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