NUST | Jotup

A unique green composite obtained from coconut fiber

Retrieved on:

Tuesday, March 1, 2022

Flax, CLS, Voluntary Control Council for Interference by Information Technology Equipment, Ultimate tensile strength, Lignin, Aluminum polymer composite, KMUTNB, University, King Mongkut's University of Technology North Bangkok, Industry, NUST, Technology, Cellulose, Institute of technology, Elastic modulus, Department, Fiber crop, Carbon fibers

The superior properties of composite made of natural fibers are driven especially by a good interfacial bonding at the interface of fiber and matrix.

Key Points:

The superior properties of composite made of natural fibers are driven especially by a good interfacial bonding at the interface of fiber and matrix.
NUST MISIS scientists, together with colleagues from India and Thailand, have made a so-called green composite, which is based on coconut fiber reinforced with a phenol-formaldehyde composite (based on phenol resin, a synthetic polymer).
Coconut fiber composites with 60% and 40% phenol formaldehyde were made by hand lay-up technique followed by compression molding.
According to the developers, the results confirm the superior mechanical properties of the green composite compared to natural coconut fiber are driven by the low content of hydrophilic hydroxyl groups and reduced impurities.

A unique green composite obtained from coconut fiber

Retrieved on:

Tuesday, March 1, 2022

MOSCOW, March 1, 2022 /PRNewswire/ -- An international research team from Russia, India and Thailand has presented a technology for manufacturing a reinforcement (strengthening) composite from a waste coconut leaf sheath (CLS). Due to its lightness and strength, it can be used to cover autobahns, create interiors for railway cars and airplanes, as well as for domestic needs. The results of the study have been published in the Polymer Composites journal.

Key Points:

The superior properties of composite made of natural fibers are driven especially by a good interfacial bonding at the interface of fiber and matrix.
NUST MISIS scientists, together with colleagues from India and Thailand, have made a so-called green composite, which is based on coconut fiber reinforced with a phenol-formaldehyde composite (based on phenol resin, a synthetic polymer).
Coconut fiber composites with 60% and 40% phenol formaldehyde were made by hand lay-up technique followed by compression molding.
According to the developers, the results confirm the superior mechanical properties of the green composite compared to natural coconut fiber are driven by the low content of hydrophilic hydroxyl groups and reduced impurities.

Metallography Discovers the Technology of Making Swords of Medieval Vikings, NUST MISIS reports

Retrieved on:

Friday, February 25, 2022

NUST MISIS metallurgists examined several swords of the 10th century from the archaeological complex of Gnezdovo near Smolensk and the burial mounds of the South-Eastern Ladoga region.

Key Points:

NUST MISIS metallurgists examined several swords of the 10th century from the archaeological complex of Gnezdovo near Smolensk and the burial mounds of the South-Eastern Ladoga region.
Ulfberht is a modern transcription of the +VLFBERHT+ inscription commonly found on Frankish swords from the early Middle Ages, 8th-11th century.
To date, about 170 Ulfberht swords, which have survived to this day, have been found.
There is a widespread legend that Ulfbert's swords are made of cast crucible steel, comparable in quality to modern metal.

Metallography Discovers the Technology of Making Swords of Medieval Vikings, NUST MISIS reports

Retrieved on:

Friday, February 25, 2022

NUST MISIS metallurgists examined several swords of the 10th century from the archaeological complex of Gnezdovo near Smolensk and the burial mounds of the South-Eastern Ladoga region.

Key Points:

NUST MISIS metallurgists examined several swords of the 10th century from the archaeological complex of Gnezdovo near Smolensk and the burial mounds of the South-Eastern Ladoga region.
Ulfberht is a modern transcription of the +VLFBERHT+ inscription commonly found on Frankish swords from the early Middle Ages, 8th-11th century.
To date, about 170 Ulfberht swords, which have survived to this day, have been found.
There is a widespread legend that Ulfbert's swords are made of cast crucible steel, comparable in quality to modern metal.

NUST MISIS Scientists Make Natural Gas Fuel Safer and Cheaper

Retrieved on:

Tuesday, February 22, 2022

Carbon, Methane, Natural gas, Chemical engineering, Carbon monoxide, Safety, Associate, NUST, Adsorption, ANG, Temperature, Transport, CNG, Nitrogen, Pressure, Department, Tambov State Technical University, Propane, Engineering

The new material allows increased gas absorption at low pressure and room temperature, thus eliminating the need for heavy, thick-walled cylinders.

Key Points:

The new material allows increased gas absorption at low pressure and room temperature, thus eliminating the need for heavy, thick-walled cylinders.
When used as a vehicle fuel, methane can offer carbon monoxide and nitrogen oxide emissions benefits over conventional fuel.
However, the use of natural gas as a vehicle fuel is associated with a number of technological challenges.
In order to produce compressed natural gas (CNG), methane is pressurized in a methane compressor.

NUST MISIS Scientists Make Natural Gas Fuel Safer and Cheaper

Retrieved on:

Tuesday, February 22, 2022

The new material allows increased gas absorption at low pressure and room temperature, thus eliminating the need for heavy, thick-walled cylinders.

Key Points:

The new material allows increased gas absorption at low pressure and room temperature, thus eliminating the need for heavy, thick-walled cylinders.
When used as a vehicle fuel, methane can offer carbon monoxide and nitrogen oxide emissions benefits over conventional fuel.
However, the use of natural gas as a vehicle fuel is associated with a number of technological challenges.
In order to produce compressed natural gas (CNG), methane is pressurized in a methane compressor.

Physicists Discover the Chambers of Secrets at the 16th Century Monastery in Pereslavl-Zalessky

Retrieved on:

Tuesday, February 15, 2022

The devices have found two previously unknown rooms, which, presumably, can be ancient crypts or monastic cells.

Key Points:

The devices have found two previously unknown rooms, which, presumably, can be ancient crypts or monastic cells.
In the underground part between two temples on the territory of the monastery, a long cavity was found.
Holy Trinity Danilov Monastery is the youngest of the surviving monasteries and was founded in 1508.
As for the voids inside the walls, the buildings of the monastery have undergone many repairs and redevelopments.

Physicists Discover the Chambers of Secrets at the 16th Century Monastery in Pereslavl-Zalessky

Retrieved on:

Tuesday, February 15, 2022

The devices have found two previously unknown rooms, which, presumably, can be ancient crypts or monastic cells.

Key Points:

The devices have found two previously unknown rooms, which, presumably, can be ancient crypts or monastic cells.
In the underground part between two temples on the territory of the monastery, a long cavity was found.
Holy Trinity Danilov Monastery is the youngest of the surviving monasteries and was founded in 1508.
As for the voids inside the walls, the buildings of the monastery have undergone many repairs and redevelopments.

NUST MISIS Scientists to Turn Tonnes of Used Face Masks into Energy

Retrieved on:

Monday, February 7, 2022

Mask, Time-invariant system, National university, Anvar Zakhidov, Nanoparticle, Technology, NUST, Research, Waste, Ink, Coronavirus, Théus, Electrode, Pressure, Electric battery

Researchers say that during the coronavirus pandemic people onthe planet started using more than 130 billion masks every month, which turn into hundreds oftonnes ofpolymer waste.

Key Points:

Researchers say that during the coronavirus pandemic people onthe planet started using more than 130 billion masks every month, which turn into hundreds oftonnes ofpolymer waste.
Scientists atNUST MISIS, together with their foreign colleagues, have developed anew technology for producing cost-effective batteries from used masks, where waste drug blister packs are also used asashell.
Previously, pellet batteries created using asimilar technology had acapacity of10watt-hours per 1kg, but scientists atNUST MISIS and their foreign colleagues have managed toachieve 98watt-hours/kg.
When scientists decided toadd nanoparticles ofinorganic perovskite ofCaCo oxide type tothe electrodes obtained from the masks, the energy capacity ofthe batteries further increased (208 watt-hours/kg).

NUST MISIS Scientists to Turn Tonnes of Used Face Masks into Energy

Retrieved on:

Monday, February 7, 2022

Mask, Time-invariant system, National university, Anvar Zakhidov, Nanoparticle, Technology, NUST, Research, Waste, Ink, Coronavirus, Théus, Electrode, Pressure, Electric battery

Researchers say that during the coronavirus pandemic people onthe planet started using more than 130 billion masks every month, which turn into hundreds oftonnes ofpolymer waste.

Key Points:

Researchers say that during the coronavirus pandemic people onthe planet started using more than 130 billion masks every month, which turn into hundreds oftonnes ofpolymer waste.
Scientists atNUST MISIS, together with their foreign colleagues, have developed anew technology for producing cost-effective batteries from used masks, where waste drug blister packs are also used asashell.
Previously, pellet batteries created using asimilar technology had acapacity of10watt-hours per 1kg, but scientists atNUST MISIS and their foreign colleagues have managed toachieve 98watt-hours/kg.
When scientists decided toadd nanoparticles ofinorganic perovskite ofCaCo oxide type tothe electrodes obtained from the masks, the energy capacity ofthe batteries further increased (208 watt-hours/kg).