Ecological adhesive based on cassava starch: a sustainable alternative to replace urea-formaldehyde (UF) in particleboard manufacture

Matéria (Rio de Janeiro), Год журнала: 2024, Номер 29(2)

Опубликована: Янв. 1, 2024

This study assessed the properties of particleboard produced from replacement urea formaldehyde with cassava starch. Cassava starch (CS) and urea-formaldehyde (UF) were mixed at percentages 100/0, 90/10, 70/30, 50/50, 0/100, respectively. The mixture was added to wood particles 15% adhesive content based on weight oven-dried particles. Particleboards sizes 20 mm × 300 a targeted density 600 kg m–3 manufactured by hot-pressing 170 °C, compacting pressure 3.5 MPa for 8 min. Physical mechanical (density, thickness swelling, water absorption, static bending, hardness) tested. physical also increased in highest proportions UF. Comparatively, 50% CS + UF, it performed better all evaluated properties. Thus, could adopt latter ratio industry reduce quantity cost UF its environmental emissions. results obtained adequate conformity international standards. Hence, mix adhesives different ratios get desirable It is possible conclude that be considered sustainable alternative adhesive.

Язык: Английский

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Particleboard bio-adhesive by glyoxalated lignin and oxidized dialdehyde starch crosslinked by urea

Wood Science and Technology, Год журнала: 2021, Номер 56(1), С. 63 - 85

Опубликована: Окт. 31, 2021

Язык: Английский

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Effect of the Adhesive System on the Properties of Fiberboard Panels Bonded with Hydrolysis Lignin and Phenol-Formaldehyde Resin

Polymers, Год журнала: 2022, Номер 14(9), С. 1768 - 1768

Опубликована: Апрель 27, 2022

This study aimed to propose an alternative technological solution for manufacturing fiberboard panels using a modified hot-pressing regime and hydrolysis lignin as the main binder. The novelty of research is optimized adhesive system composed unmodified reduced phenol-formaldehyde (PF) resin content. were fabricated in laboratory with very low PF content, varying from 1% 3.6%, addition levels 7% 10.8% (based on dry wood fibers). A specific two-stage regime, including initial pressure 1.2 MPa subsequent high 4 MPa, was applied. effect binder content properties fiberboards (water absorption, thickness swelling, bending strength, modulus elasticity, internal bond strength) investigated, appropriate optimization performed define optimal complying European standards. It concluded that proposed technology suitable fulfilling strictest EN standard. Markedly, it shown production this type panels, minimum total binders should be 10.6%, at least 14% system.

Язык: Английский

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Aldehyde-amine crosslinked starch-based high-performance wood adhesive

European Journal of Wood and Wood Products, Год журнала: 2023, Номер 81(6), С. 1557 - 1568

Опубликована: Авг. 29, 2023

Язык: Английский

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Bioinspired 'phenol-amine' cross-linking and mineral reinforcement enable strong, tough, and formaldehyde-free tannic acid-based adhesives

Journal of Cleaner Production, Год журнала: 2024, Номер 472, С. 143490 - 143490

Опубликована: Авг. 26, 2024

Язык: Английский

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