Ieškoti

Polymers and Their Composites from Renewable Raw Materials

Aprašymas:

Unique polymeric materials are obtained from renewable resources such as natural oils, byproducts of diesel production. Characteristics of the materials depend on their chemical composition and structure.

Application areas:

Biodegradable and stable polymers and polymer composites for the production of non-durable (e.g. mulch coatings, coatings for slow-release fertilizers) or durable (e.g. materials for 3D printing) products.

Raktažodžiai: Polymers, Composites, Renewable Raw Materials

Mokslo kryptis: Naujos medžiagos aukštosioms technologijoms
Various Cold-Pressed Oils, Balanced Oil Mixtures and Oil Extracts, and Their Use. Standardization

Aprašymas:

Production of various cold-pressed oils and their mixtures in order to balance out the composition of fatty acids. Cold-pressed oil is a natural product which retains all natural properties, whereas oil mixtures maintain a balanced ratio of these materials.

Oil extracts from fatty seeds, herbs, and vegetables are valuable natural products for flavouring seasoning, mayonnaise and sauces and increasing their nutritional value.

Oil extracts are natural flavourings and a source of antioxidants and other biologically active substances; balanced cold-pressed oil mixtures can be consumed by those who lack α-linolenic fatty acids in their diet together with the required daily amount of the fatty acid in order to improve health.

Raktažodžiai: Cold-Pressed Oils, Oil Mixtures, Oil Extracts

Mokslo kryptis: Naujos medžiagos aukštosioms technologijoms, Technologijos darniam vystymuisi ir energetika
Research of the Properties and the Structure of Self-Compacting Concrete

Aprašymas:

Concrete and reinforced concrete constructions made out of this concrete have a non-porous, visually pleasing concrete surface.

This concrete does not require additional compaction; meanwhile, construction reinforcement can be highly dense. The use of such concrete in reinforced concrete factories allows maximum automation of the production process.

The developed technology allows to produce a concrete mix which is superior technologically, has the best physical and mechanical properties, and is the easiest to use. The spread of the concrete mix is less than 650 mm.

Novelty:

We expect this fluid concrete mix to replace around two thirds of the usual concrete mix in Europe over the next 10 years.

Raktažodžiai: Concrete

Mokslo kryptis: Naujos medžiagos aukštosioms technologijoms, Technologijos darniam vystymuisi ir energetika
Spiro[chroman-2,2’-indole] Derivatives as Cyanide Ion Chemosensors

Aprašymas:

The derivatives can be used for the detection of cyanide ions in both technological waters and drinking water as well as various gaseous emissions by absorbing them by an appropriate solution.

By affecting the invented 1′,3,3′,4-tetrahydrospiro[chromene-2,2′-indole] derivatives by cyanide ions present in the analysed solution, 3,4-dihydropyran ring decyclization takes place and a coloured 4-nitrophenolate ion occurs, detected colorimetrically. Sensitivity threshold 10-6 M.

Patenting:

LR patent No. 6105 (2014-12- 29) and PCT application No. EP2999704 A1. (2016-03-30)

Raktažodžiai: indole

Mokslo kryptis: Naujos medžiagos aukštosioms technologijoms
Recycling of Elemental Mercury-Containing Light Bulbs and Utilization of Elemental Mercury Waste

Aprašymas:

Inorganic chemical technology for recycling (decontamination) of elemental mercury-containing light bulbs and elemental mercury waste, which turns elemental mercury into harmless compounds has been developed.

Recycling of light bulbs involves chemical decontamination of mercury vapor and separation of glass and metal in a special machine.

Utilization of liquid mercury is based on the reaction of collected mercury spills with an inorganic material to form a non-hazardous compound. This compound is suitable as a raw material for the subsequent recovery of metallic mercury.

Raktažodžiai: chemical technology, mercury

Mokslo kryptis: Naujos medžiagos aukštosioms technologijoms, Technologijos darniam vystymuisi ir energetika
Cationic Starch-Triiodide Bactericide

Aprašymas:

Prolonged activity: iodine is released gradually and as much as needed to fight bacteria. Modified starch can attach to 200% molecular iodine.

Novelty:

An original formulation based on biopolymer with release of iodine on demand.

Patenting:

 

LT 5802 B – 2012.01.25.

Raktažodžiai: molecular iodine, Cationic Starch-Triiodide Bactericide

Mokslo kryptis: Naujos medžiagos aukštosioms technologijoms, Technologijos darniam vystymuisi ir energetika
Dry and Liquid Compound Fertilizer: Development, Properties, Recommendations of Production

Aprašymas:

Scientific Group carries out various scientific researches of multicomponent systems. Research and development work is closely linked to the fertilizer assortment expansion and innovation.

Scientists also collaborate with the major fertilizer industry, perform outsource research, and consult start-ups of fertilizer production and technology.

8 LR patents are published together with the co-authors.

Raktažodžiai: Compound Fertilizer

Mokslo kryptis: Naujos medžiagos aukštosioms technologijoms, Technologijos darniam vystymuisi ir energetika
Cationic Biopolymer Flocculants

Aprašymas:

Biodegradable and effective starch flocculants are obtained by chemical and physical modification of starch. Novel flocculants can be obtained in form of powder or concentrated paste.

The invention allows to produce the cationic flocculants from starch for industrial and municipal wastewater and sludge processing. Such flocculants especially distinguished for their broad flocculation window.

Novelty:

An original formulation and solution.

Patenting:

LT 5926 B – 2013.04.25.

LT 6229 B – 2015.10.26.

Raktažodžiai: Cationic Biopolymer Flocculants, Flocculants

Mokslo kryptis: Naujos medžiagos aukštosioms technologijoms, Technologijos darniam vystymuisi ir energetika
Ultra High Performance Fibre Concrete with Advanced Mechanical Properties and Durability

Aprašymas:

It has been proved that ultra high performance concrete can be prepared not only from expensive reactive powder but also from cheaper (local) materials.

Research has already found links between concrete’s properties and durability as well as identified its change patterns; the technology for achieving the optimum composition of the concrete as well as using it in a mixture has also been identified.

Novelty:

Ultra-high performance fibre reinforced concrete (UHPFRC) mixture with advanced mechanical and durability properties was created using ordinary mixer. Compressive strength varied  from 130 MPa (without micro steel fibres) up to 170 MPa (with 147 kg/m3 micro steel fibres). Flexural strength can be increased more than 5 times – from 6.9 MPa (without micro steel fibres) up to 36.2 MPa (with 147 kg/m3). Salt-scaling resistance at 40 cycles in 3% NaCl solution varied from 0.006 kg/m2 to 0.197 kg/m2. 

Raktažodžiai: Fibre Concrete

Mokslo kryptis: Naujos medžiagos aukštosioms technologijoms, Technologijos darniam vystymuisi ir energetika
Concrete with an Elastic Additive

Aprašymas:

We propose a technology for the disposal of used tires – mechanical milling and fractionation of tires. The shredded rubber can then be used in concrete mixes and mortar as an additive replacing part of the sand

It is a new and simple method for disposing of tires which does not require huge capital investments, only for establishment of an experimental enterprise (technology line) and a license agreement.

Novelty:

Elastic additive would modify concrete properties by increasing its deformability, resistance to cold and increasing its acoustic and other properties.

Raktažodžiai: Concrete

Mokslo kryptis: Naujos medžiagos aukštosioms technologijoms, Technologijos darniam vystymuisi ir energetika
Antimicrobial Silicone

Aprašymas:

The invention relates to antimicrobial silicone substances, which are obtained by using multifunctional fillers and silicon matrix composites. Using environmentally friendly, simple synthesis techniques to create composites. Silicone was filled with the obtained composites of natural polymer metal particles. The created modified multifunctional filler and silicone composite is characterized by good physical and chemical properties, as well as strong antimicrobial effect on both Gram-positive and Gram-negative bacteria.

Novelty:

Created cellulose-based particles and metal nanoparticles composites as multi functional fillers within polymer matrices. Synthesis  of nanocomposites are simple, environment friendly and economical. Obtained composites are stable and non-cytotoxic. Created  unique diffusion system in polymer matrix, which has no analogues in the world.

European patent application number: EP17152392.1

Raktažodžiai: Antimicrobial Silicone, Silicone

Mokslo kryptis: Naujos medžiagos aukštosioms technologijoms, Technologijos darniam vystymuisi ir energetika
Non-Autoclaved Aerated Concrete

Aprašymas:

The new aerated concrete composition allows to achieve highly stable properties of the concrete.

The proposed composition reduces the cost of the concrete thanks to using secondary raw materials.

Novelty:

The non-autoclaved aerated concrete based on the modified binding composition containing a supplementary cementitious material, reinforced with polypropylene fibers is characterized by the compressive strength of 2.0…3.0 MPa, with the density of 600…650 kg / m3. Pore size – 0.2-1.0 mm.

Raktažodžiai: Concrete

Mokslo kryptis: Naujos medžiagos aukštosioms technologijoms, Technologijos darniam vystymuisi ir energetika