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Jaan Kers

Catherine Kilumets / Christopher G. Hunt / Heikko Kallakas / J. Y. Zhu / Jaan Kers

Hemicelluloses Influence on Set-Recovery and Densification of Veneer

Wood densification is aimed at reducing wood porosity through compression to improve wood surface hardness and transverse shear strength (Navi and Heger, 2004). This method has generated a lot of …

Alar Just / Jaan Kers / Laura Kaljula / Mikk Põdra / Triinu Poltimäe

Mechanical properties of fire damaged and bark beetle (Ips typographus) attacked Norway spruce (Picea abies) wood.

An increasing problem of Spruce bark beetle (Ips typographus) attacks on softwood, particularly Norway spruce (Picea abies) has lead to a situation where there is a large stock of beetle …

Catherine Kilumets / Jaan Kers / Kaur Tootsi

Enhancement of Thin Aspen Veneer Quality in Rotary Peeling

The European aspen (Populus tremula L.) is a fast-growing low density hardwood species used in veneer and the pulp and paper industry. Shortages and/or high prices of high-quality wood species, …

A. Mere / Andres Krumme / Atanas Katerski / E. Tarasova / Heikko Kallakas / Jaan Kers / Percy Festus Alao / R. Lohmus / T. Kaljuvee / T. Kattamanchi

Effect of Drying Methods on the Morphological and Functional Properties of Cellulose Ester Films

The growing interest in bioplastics is largely attributed to their environmental benefits and their potential to remediate petrochemical polymers[1]. Among biobased polymers, cellulose has gained considerable attention due to its …

Heikko Kallakas / Jaan Kers / Joonas Hakonen / R. Lohmus / T. Kattamanchi

Plywood reinforced with volcanic fibre fabric 

Plywood is a widely used engineered wood product valued for its strength to weight ratio, versatility, and cost effectiveness across construction, transportation and furniture industries​[1,2]​. However, its mechanical properties – …

Jaan Kers / Targo Kalamees / Villu Kukk

Exploring the Performance of CLT External WallsEnhanced with Wood-Fibre-Based ETICS: Preliminary Field Measurement Insights

The use of Exterior Thermal Insulation Composite Systems (ETICS) has increased in recent decades, primarily due to its straightforward installation methodology, which is beneficial for cost-efficient energy renovation of buildings. …

A. Mere / Andres Krumme / E. Tarasova / Heikko Kallakas / Jaan Kers / Percy Festus Alao / R. Lohmus / T. Kaljuvee / T. Kattamanchi

Effect of controlled drying on the properties of cellulose ester films synthesised in novel ionic liquid [mTBNH][OAc]

Cellulose based plastics are gaining global interest for their numerous applications. Softwood and hardwood logs are used to produce cellulose fibres. Thermoplastic cellulose esters are promising materials for bioplastic packing. …

Alexander Scharf / Anti Rohumaa / Fred Mühls / Heikko Kallakas / Jaan Kers / Tolgay Akkurt

The Effect of Hardwood Veneer Densification on Plywood Density, Surface Hardness, and Screw Withdrawal Capacity

Increasing environmental awareness and the carbon-storing capability of wood have amplified its relevance as a building material. The demand for high-quality wood species necessitates exploring alternative, underutilized wood sources due …

Jaan Kers / Luga Ü. / Repeshova I / Saar K. / Triinu Poltimäe

WOOD FLOUR MANUFACTURING BY DISINTEGRATOR TECHNOLOGY AND FRACTION SIZE INFLUENCE ON THE MECHANICAL PROPERTIES OF WOOD-PLASTIC COMPOSITE

Wood-plastic composite is an excellent example of a constantly evolving and developing way of thought. The material is environmentally friendly, sustainable and efficient. The most current issue is to extend …

Jaan Kers / Kallavus U. / Kaps T. / Liibert L. / Luga Ü. / Reiska R.

FUNGAL DECAY RESISTANCE AND LEACHABILITY OF RAPESEED OIL BASED EMULSION-TREATED WOOD

Vacuum dried Scots pine (Pinus sylvestris) roundwood and sapwood blocks were impregnated with different emulsions based on rapeseed oil with boron compounds and rapeseed oil with Tanalith E. The impregnation …

Andres Krumme / Heikko Kallakas / Jaan Kers / Shamim A. M. / Süld M. T. / Triinu Poltimäe

Mechanical and physical properties of silane crosslinked wood flour reinforced composites

Wood flour usage in thermoplastic composites can lower the cost of the material and can also increase the strength and stiffness of thermoplastic composites. However, wood flour requires their surface …

Jaan Kers / Targo Kalamees / Villu Kukk

Hygrothermal performance of cross-laminated timberwalls with interior insulation

Moisture safety is as important for CLT envelopes as for any other building envelopes. For wood, mould growth is usually the first criteria for limiting moisture conditions that are too …

Andres Krumme / Dmitri Goljandin / Gbenga Solomon Ayansola / Heikko Kallakas / Jaan Kers / Tanel Tumanov / Triinu Poltimäe

Influence of birch false heartwood on the physical and mechanical properties of wood-plastic composites

This research investigates the properties of the wood-plastic composites, which are made of polypropylene matrix and birch wood as a filler. Wood plastic composites have already been widely researched materials …

Gbenga Solomon Ayansola / Heikko Kallakas / Jaan Kers / Marek Õunpuu / Tanel Tumanov / Triinu Poltimäe

Effect of moisture and UV radiation to the birch false heartwood plastic composites

The goal of this research is to study the properties of composite materials where birch false heartwood is used as filler material and suggest an economically suitable use for birch …

Jaan Kers / Laura Cukkere / Villu Kukk

Affection of exceed moisture to the hygrothermal properties of cross laminated timber panel in external wall assemblies

This project is a part of development of overall work to be finished as Master’s thesis of Technology of Wood and Plastic study program. As Cross Laminated Timber (CLT) is …

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