(Press-News.org) In order for future mobility, such as urban air mobility (UAM), to become a reality, it must be fuel efficient and reduce carbon emissions, which requires the development of new materials with excellent physical properties and recyclability. Self-reinforced composites (SRCs) are inexpensive, lightweight, and have advantages in terms of disposal and recycling as the reinforcement and the base material are composed of the same material. For this reason, it is attracting attention as a next-generation composite material to replace carbon fiber-reinforced composites used in aircraft.
Korea Institute of Science and Technology (KIST, President Seok Jin Yoon) announced that Dr. Jaewoo Kim of the Solutions to Electromagnetic Interference in Future-mobility(SEIF), together with Prof. Seonghoon Kim of Hanyang University and Prof. O-bong Yang of Jeonbuk National University has successfully developed a 100% SRC using only one type of polypropylene (PP) polymer.
Until now, in the manufacturing process of SRCs, chemically different components have been mixed in the reinforcement or matrix to improve fluidity and impregnation, resulting in poor physical properties and recyclability. The research team succeeded in controlling the melting point, fluidity, and impregnation by adjusting the chain structure of the polypropylene matrix through a four-axis extrusion process.
The developed SRCs achieved the highest level of mechanical properties, with adhesion strength, tensile strength, and impact resistance improved by 333%, 228%, and 2,700%, respectively, compared to previous studies. When applied as a frame material for a small drone, the material was 52% lighter than conventional carbon fiber reinforced composites and the flight time increased by 27%, confirming its potential for next-generation mobility applications.
Dr. Kim of KIST said, "The engineering process for 100% SRCs developed in this study can be immediately applied to industry, and we will continue to work with the joint research team and industries to secure the global competitiveness of magnetically reinforced composites."
###
The research was funded by the National Research Council of Science & Technology(NST)'s Convergence Research Center Project (CRC22031-000) on "Development of Materials and Component Technologies for High Frequency/High Power Electromagnetic Wave Solutions to Secure Future Mobility Operation Reliability" (2016R1A6A1A03013422), the Korea Research Foundation's Basic Research Project (2016R1A6A1A03013422), the Mid-Career Researcher Support Project (2021R1A2C11093839), and the Ministry of Education's LINC 3.0. The results were published in the Chemical Engineering Journal (IF:16.744, top 2.448% in JCR), a world-class international journal in the field of chemical engineering.
END
Developing new materials to accelerate the arrival of 'air taxis'
Development of 100% self-reinforced composites for urban air mobility (UAM) and other applications. Significant improvement in bonding strength, tensile strength, and impact resistance compared to previous work.
2023-07-17
[Attachments] See images for this press release:
ELSE PRESS RELEASES FROM THIS DATE:
New findings suggest historical infanticide in Europe likely more widespread than estimated
2023-07-17
‘Routine’ infanticide of newborns by married parents in early modern Europe was a much more widespread practice than previously thought, a new book posits.
This fresh insight sits at the heart of a new book, Death Control in the West 1500–1800: Sex Ratios at Baptism in Italy, France and England, by Gregory Hanlon and contributors.
The French-trained behavioural historian explains: “In most cases, infanticide was a crime leaving no aggrieved party seeking revenge if it was committed right away. It could be overlooked and forgotten with the passage of time.”
Widespread infanticide
Hanlon, who is Distinguished Research Professor at Dalhousie University in ...
Prescribing psychostimulants for people at risk of overdose
2023-07-17
Growing evidence supports prescribing psychostimulant medications to help reduce use of illegal stimulants such as methamphetamine, authors write in a CMAJ (Canadian Medical Association Journal) commentaryhttps://www.cmaj.ca/lookup/doi/10.1503/cmaj.230266.
Illegal stimulant use is rising, judging by the presence of these drugs in at least half of all opioid deaths in Canada in 2022.
Following evidence from clinical trials in Australia, Europe and the United States, physicians and nurse practitioners in Canada and other countries are increasingly prescribing psychostimulants as harm reduction for stimulant use disorder.
"This emerging ...
THE LANCET ONCOLOGY: Cancer experts call for cancer care to be centred on patients rather than the commercial bottom-line
2023-07-17
Commercial, rather than patient interests, often drive cancer care and research and patients deserve better, argue a group of global oncologists and patient advocates in a Comment published in The Lancet Oncology journal. The authors also establish core guidelines for the development of a new patient-centred movement in cancer care - Common Sense Oncology.
The Comment says there has been a shift over the past few decades from predominantly publicly funded clinical trials designed to answer questions important to patients, to industry-funded trials which aim to achieve ...
Significant rise in ADHD diagnoses in the UK
2023-07-17
Both ADHD diagnoses and prescriptions for ADHD medication have increased significantly over the past two decades, except in children under five, finds a new study by UCL researchers.
The research, published in BJPsych Open, reviewed data from 7 million individuals aged three to 99, from IQVIA Medical Research Data, a UK primary care database, between 2000 and 2018.
Of these individuals, 35,877 had an ADHD diagnosis and 18,518 received prescriptions for ADHD medication from their GP.
Although the number of individuals receiving medication for ADHD is still relatively low, the researchers found ...
New guidelines for diagnosing Alzheimer's
2023-07-16
Today at the International Alzheimer's Congress (AAIC) in Amsterdam, new guidelines for diagnosing Alzheimer's disease developed by clinicians and researchers from around the world were presented. In these criteria, the disease is diagnosed in the clinic through the use of blood biomarkers, just as with other major diseases such as diabetes and cardiovascular disease.
A blood test has been developed for this purpose in recent years that gives very good results, according to recent research. Charlotte Teunissen, professor of neurochemistry at Amsterdam ...
Discovery could lead to more treatments to prevent cancer and infectious diseases
2023-07-16
Researchers have cracked how a particular type of immune cell develops in the body and protects against infection and disease. And the discovery could help in the development of more preventive treatments, according to a new study.
The research, led by Murdoch Children’s Research Institute and Federation University Australia, has uncovered how these specialised white blood cells operate and can produce an immune response.
Associate Professor Dan Pellicci said by understanding the function of these cells, they could be harnessed to help prevent cancer and highly infectious diseases such as ...
Unimolecular reactions of anti-glycolaldehyde oxide and its reactions with one and two water molecules
2023-07-15
Criegee intermediates are produced in the ozonolysis of unsaturated compounds in the atmosphere. These intermediates are especially importanct because they contribute to the formation of OH radical during the night and to formation of secondary organic aerosols. The OH radicals increase the oxidative capacity of the atmosphere, and the aerosols may reflect or absorb sunlight and contribute to cloud formation. Criegee intermediates also lay key roles in conversion of sulfur dioxide into sulfur trioxide, finally resulting in the formation ...
5-aminolevulinic acid might help fight mitochondrial disorders
2023-07-15
Tokyo, Japan – Scientists from Tokyo Metropolitan University have shown that 5-aminolevulinic acid (5-ALA) helps bypass deficiencies in Complex I (CI), the first in a series of protein complexes that transport electrons and help power the mitochondria. They showed that fruit flies missing the analogous protein showed improved health when given a cocktail of drugs including 5-ALA. CI deficiency is responsible for the majority of mitochondrial disorders; the team’s findings might lead to new therapies.
Mitochondrial diseases arise from problems in the mitochondria, a small organelle in cells which produces adenosine triphosphate (ATP), ...
Mobile app enables students with special needs to self-monitor behavior, focus more in class
2023-07-14
COLUMBIA, Mo. -- When Sara Estrapala started her career as a high school paraeducator supporting students with disabilities such as autism, down syndrome, learning disorders and challenging behaviors, she quickly recognized a challenge — her teenage students desire to make their own decisions and their teachers’ struggle to keep them engaged and following directions.
Now an assistant research professor in the University of Missouri College of Education and Human Development, Estrapala is leading a four-year, $519,939 early career development and mentoring ...
Remote plant worlds
2023-07-14
Oceanic islands provide useful models for ecology, biogeography and evolutionary research. Many ground-breaking findings – including Darwin's theory of evolution – have emerged from the study of species on islands and their interplay with their living and non-living environment. Now, an international research team led by the University of Göttingen has investigated the flora of the Canary Island of Tenerife. The results were surprising: the island's plant-life exhibits a remarkable diversity ...
LAST 30 PRESS RELEASES:
The simulated Milky Way: 100 billion stars using 7 million CPU cores
Brain waves’ analog organization of cortex enables cognition and consciousness, MIT professor proposes at SfN
Low-glutamate diet linked to brain changes and migraine relief in veterans with Gulf War Illness
AMP 2025 press materials available
New genetic test targets elusive cause of rare movement disorder
A fast and high-precision satellite-ground synchronization technology in satellite beam hopping communication
What can polymers teach us about curing Alzheimer's disease?
Lead-free alternative discovered for essential electronics component
BioCompNet: a deep learning workflow enabling automated body composition analysis toward precision management of cardiometabolic disorders
Skin cancer cluster found in 15 Pennsylvania counties with or near farmland
For platforms using gig workers, bonuses can be a double-edged sword
Chang'e-6 samples reveal first evidence of impact-formed hematite and maghemite on the Moon
New study reveals key role of inflammasome in male-biased periodontitis
MD Anderson publicly launches $2.5 billion philanthropic campaign, Only Possible Here, The Campaign to End Cancer
Donors enable record pool of TPDA Awards to Neuroscience 2025
Society for Neuroscience announces Gold Sponsors of Neuroscience 2025
The world’s oldest RNA extracted from woolly mammoth
Research alert: When life imitates art: Google searches for anxiety drug spike during run of The White Lotus TV show
Reading a quantum clock costs more energy than running it, study finds
Early MMR vaccine adoption during the 2025 Texas measles outbreak
Traces of bacteria inside brain tumors may affect tumor behavior
Hypertension affects the brain much earlier than expected
Nonlinear association between systemic immune-inflammation index and in-hospital mortality in critically ill patients with chronic obstructive pulmonary disease and atrial fibrillation: a cross-sectio
Drift logs destroying intertidal ecosystems
New test could speed detection of three serious regional fungal infections
New research on AI as a diagnostic tool to be featured at AMP 2025
New test could allow for more accurate Lyme disease diagnosis
New genetic tool reveals chromosome changes linked to pregnancy loss
New research in blood cancer diagnostics to be featured at AMP 2025
Analysis reveals that imaging is overused in diagnosing and managing the facial paralysis disorder Bell’s palsy
[Press-News.org] Developing new materials to accelerate the arrival of 'air taxis'Development of 100% self-reinforced composites for urban air mobility (UAM) and other applications. Significant improvement in bonding strength, tensile strength, and impact resistance compared to previous work.