Articles tagged with Resins
Researchers have created photopolymer resins that speed up visible-light curing, enabling faster 3D printing of stiff and soft objects. The optimized mix allows build speeds of up to 1.8 inches per hour, opening up new applications for 3D printing.
Researchers from Kaunas University of Technology and Vilnius University synthesized a bio-based resin for optical 3D printing that proved universal for both table-top and ultrafast laser printers. The novel material is made from renewable raw materials and can be used in industrial lines with minimal modifications.
A team of researchers at the University of Johannesburg has developed a natural fibre-reinforced polymer hybrid nanocomposite material using plantain fibers and carbon nanotubes. The resulting composite exhibits improved tensile and flexural strength compared to epoxy resin alone.
Researchers developed a precision welding technique using laser heating to join thermoplastic resins like PPS, COP, and PET. This method improves the quality of small electronic components, microchannels, and flat panels by avoiding overheating and burning.
Researchers at Purdue University have created a more sustainable and greener method for producing composite boards by utilizing non-food-based biomass such as wood chips or rice straw. The new process reduces the use of formaldehyde-based resin binders, posing significant health hazards in consumer products.
Researchers at KIST developed a flame-retardant carbon fiber-reinforced composite material using plant-originated tannic acid. The new method allows for the recovery of over 99% of the composite material through dissolution in water, eliminating toxic substances generated during recycling.
The nickel-based catalyst precursor proved effective for in-situ conversion of asphaltenes, reducing the content of resins and asphaltenes. The catalyst also reduced viscosity by destroying carbon-heteroatom bonds and interacting with aromatic rings.
Scientists at University of Colorado Denver create complex, porous lattice structure using liquid crystal elastomers (LCEs) to mimic cartilage and other biological tissues. The material exhibits exceptional elasticity and dissipation capabilities, making it suitable for applications in football helmets and spinal implants.
Researchers from SUTD developed a simple method to fabricate reproducible planar microstructures of polysiloxane without changing its properties. The new approach, embedded ink writing (EIW), enables direct patterning of polysiloxane on different soft and rigid substrates.
A new study reveals that Madagascar copal, a material thought to be hundreds of years old, is actually an Antropocene-era resin made during the extreme human impact period. The findings suggest that species within the resin may have adapted to new habitats due to deforestation.
Researchers developed an expandable resin that can be used to print large objects with an inexpensive, commercially available 3D printer. The material expands upon heating, creating a porous, polystyrene foam-like material up to 40 times larger in volume than the original printed object.
Researchers at UCI have successfully designed a novel plate-cell architecture for nanometer-sized carbon structures that are stronger than diamonds. The design has been shown to improve on the average performance of cylindrical beam-based architectures by up to 639% in strength and 522% in rigidity.
Researchers at Yokohama National University have identified spent coffee grounds as a viable new source of cellulose nanofibers, which can be used to produce biodegradable plastic products. The extracted fibers displayed uniformity and integration with polymer resin, demonstrating their potential as a wood substitute.
Researchers found a 110-million-year-old fossilized plant gum, which defies previous assumptions that it couldn't be preserved due to its water-soluble properties. The discovery sheds new light on the survival of plant chemicals in fossils and has significant implications for understanding ancient ecosystems.
A team at NIST has developed a tool to monitor changes in composite materials, allowing for the measurement of damage that occurs as they age. This technology enables early warning systems for structures like wind turbines and aerospace components.
Researchers from SUTD develop a modularization approach to print microfluidic channels with greater intricacy and smaller channel dimensions. They demonstrate the efficacy of their approach by showing a substantial improvement in channel dimensions compared to conventional methods.
Using stereolithography, ETH Zurich researchers have created glass objects with intricate structures and pore sizes controlled by UV light intensity. The technique allows for the production of complex glass objects, such as those with different types of glass or combined materials.
Researchers have developed a new approach to rapid and large-scale stereolithographic 3D printing, called HARP, which surpasses the capabilities of existing methods like CLIP. The method uses a flowing layer of fluorinated oil as a heat exchanger, allowing for faster rates and wider resin compatibility.
Northwestern University researchers have developed HARP, a high-throughput 3D printer that can print large parts in hours and small parts at high resolutions. The technology bypasses heat limitations with a nonstick liquid interface, enabling fast and large-scale manufacturing without molds or warehouses.
A team of researchers successfully validated an optimized composite material structure created using additive manufacturing, resulting in a stiffer and stronger material. The structure features a curved deposition line pattern, which was found to be the most optimal for achieving maximum stiffness and strength.
A team of researchers from Henan University has investigated the flame retardant performance of epoxy resin using a boron nitride nanosheet decorated with cobalt ferrite nanoparticle. The as-prepared CFN-BNNS exhibits superior paramagnetic properties, contributing to better flame retardant performance compared to random alignment.
A protective layer of epoxy resin helps prevent lead leakage from perovskite solar cells, outperforming rival materials under various weather conditions. The 'self-healing' property of the polymer limits lead release when damaged, making it a strong candidate for commercial viability.
Researchers developed a simple method to fabricate superelastic hard carbon aerogels with nanofibrous network structure, exhibiting robust mechanical performances including super-elasticity, high strength, and low energy loss coefficient. The aerogel maintains super-elasticity in harsh conditions, such as liquid nitrogen.
A rare marine ammonite shell, identified as a juvenile from the Late Albian to Early Cenomanian age of the Cretaceous Period, is preserved in Burmese amber. The discovery suggests that the amber was formed on a beach with resin-producing trees close enough to the water to capture both terrestrial insects and remains of marine organisms.
Scientists have discovered a 99-million-year-old piece of amber containing diverse coastal organisms, including sea snails, slaters, and terrestrial creatures like mites and spiders. The finding sheds light on the unique preservation process that trapped these animals in the amber.
Researchers analyzed six Iberian prehistoric beads and found that some had a multilayered coating made of tree resins, likely used to imitate amber's translucence. The study suggests unscrupulous traders may have substituted fake amber for true amber in tomb sites.
A team of international scientists and conservationists has successfully rediscovered the world's largest bee, Wallace's giant bee. The species was lost to science since 1981 but has been found in Indonesia, where it is threatened by forest destruction.
A new 3D printer uses light to transform gooey liquids into complex solid objects in a matter of minutes, smoother and more flexible than traditional printers. The technology has the potential to mass-customize products, including prosthetics and eyeglass lenses.
Scientists create new process to remove phenolic compounds from olives, making them more palatable without destroying beneficial compounds. The method uses Amberlite macroporous resin and recovers intact olive phenolics for high-value ingredients.
Researchers at the University of Michigan have developed a new approach to 3D printing that lifts complex shapes from a vat of liquid, producing objects 100 times faster than conventional methods. The method uses two lights to control where resin hardens and harden, enabling the creation of sophisticated patterns and durable materials.
A study by Kenton Panas and colleagues found that cross-contamination during two-person assisted gowning procedures is common, affecting 67% of cases. A single-person gowning procedure can eliminate this source of contamination and optimize sterile technique in the OR.
The study reveals that herbal cannabis THC concentrations increased by 5% annually from 2006 to 2016, while cannabis resin THC levels rose rapidly from 10% to 17% between 2011 and 2016. This shift may offset the potential therapeutic benefits of CBD.
Researchers have discovered a way to produce environmentally friendly oleoresins from loblolly pine trees, valued at $1.7 billion by 2022. This breakthrough could lead to new engineering approaches for the production of renewable chemicals and inspire alternative technologies.
Researchers created complex origami structures with unprecedented strength, light weight, and expandability using Digital Light Processing (DLP) 3D printing. The innovative approach enables folding and refolding of the structures without breaking, paving the way for numerous potential applications.
Researchers at NIST have developed a novel light-based technique to measure the mechanical and flow properties of materials during the curing process in real-time. This allows for fast and accurate optimization of processing conditions for various materials, from biological gels to stiff resins.
A research team at UGA New Materials Institute has synthesized a food contact polymer to create a commercially viable, fully biodegradable plastic straw. The straws must perform as well as traditional plastic straws and be cost-effective over their entire life cycle.
Researchers at USTC fabricate a family of polymeric woods with similar cellular structures to natural wood, exhibiting lightweight and high-strength properties. The novel strategy involves self-assembly and thermocuring processes using traditional resins, offering a green approach to prepare multifunctional artificial woods.
Researchers synthesized tetrapeptide PAGY and its analogues using solid phase peptide synthesis, screening their antioxidant properties. The results showed that PSGY exhibited the highest DPPH inhibition activity, while modifications in amino acid sequences increased or decreased antioxidant activity.
Researchers developed a gravity separation process to cleanly lift organic resins from inorganic fibreglass, making it possible to recycle non-metal parts of cellphones. The process has the potential to create raw materials for construction and insulation.
Scientists from Siberian Federal University have developed a new method for synthesizing iron-dysprosium garnet, a promising magnetic material. This method uses anion resin exchange precipitation, allowing for the production of materials with controlled properties and no high temperatures or aggressive substances.
A new study published in Frontiers in Medicine found that patients who drink alcohol or smoke are more likely to experience dental filling failure. Genetic differences were also discovered to be associated with increased filling failure rates, suggesting personalized treatments could lead to improved outcomes.
A research project has developed fiber cement panels and biomass particleboard using agroindustrial waste, offering alternatives to toxic raw materials. The use of plant-based materials reduces the environmental impact of construction products.
Researchers at Brigham Young University have successfully 3D printed microfluidic devices with flow channel cross sections as small as 18 micrometers by 20 micrometers. This breakthrough enables mass-producing medical diagnostic devices cheaply, using a custom printer and low-cost resin.
A recently conducted study revealed that the cured-in-place pipe repair (CIPP) method can emit hazardous chemicals into the air, posing potential health hazards to workers and the public. The research found a complex mixture of organic vapor, water vapor, and liquid droplets of water, which can cause short- and long-term health impacts.
A new study led by Roland Geyer estimates that over 8 billion metric tons of plastic have been produced since the 1950s, with most becoming waste after four years. The research provides a global analysis of plastic production and fate, highlighting the need for sustainable materials management.
Researchers at University of Illinois find ancient fungal specimen with gills under cap, revealing insights into fungal evolution and adaptation to terrestrial environments. The oldest known fungus fossil, Gondwanagaricites magnificus, pushes the timeline for fungi's existence by millions of years.
Researchers at the University of Illinois Chicago have discovered a natural compound in grape seed extract that can strengthen dentin and increase the life of resin fillings. The study found that the extract can make composite-resin fillings stronger, allowing them to last longer.
Researchers at Waseda University have developed a new 3D Chemical Melting Finishing (3D-CMF) method that improves surface texture and structural rigidity while reducing waste and cost, making it suitable for home 3D printing. The process uses a tool to selectively apply solvent to specific parts of the printed piece.
The patented resin is made from plant oils, offering a sustainable alternative to traditional adhesives. It provides improved water-resistance, shelf life, and adhesion, making it suitable for various applications, including labeling and coatings.
Lead acetate, combined with mastic resin and linseed oil, enabled artists to create quick-drying paint layers for the first time. This innovation allowed for faster production times, facilitating the development of modern styles in the 19th century.
A team of NASA scientists is developing a compact, low-cost telescope for CubeSats that will utilize a mirror made of carbon nanotubes in an epoxy resin. The technology aims to provide a sensitive instrument for quick exploratory missions or as part of a constellation of similar CubeSats.
Researchers have developed a non-destructive inspection method using terahertz waves to visualize PC steel wires hidden inside concrete and steel bridges. This technology is particularly useful for extradosed bridges where the wires are covered in resin jackets, reducing the risk of corrosion during inspections.
Brazilian scientists review advances in nanodentistry, exploring how nanoparticles can improve dental materials, prevent oral diseases, and create wearable toothpaste. However, safety and cost concerns hinder the adoption of these new technologies.
Resin acids have been found to be effective in treating epilepsy by opening potassium channels and reducing nerve activity. The substances, which are fat-soluble and electrically charged, were synthesized from a natural molecule and tested on frog eggs and mice before patent applications were submitted.
A 16-year-old scientist has created a solution to remove pharmaceutical drugs from contaminated water, using a plastic adsorbent that can capture the chemicals. The innovative technique, tested over six years, shows promise for scaling up and applying it in real-world water treatment.
The SIRFLOX randomized controlled study found that adding liver-directed SIR-Spheres Y-90 resin microspheres to first-line chemotherapy improved liver tumour control and reduced progression risk. The regimen provided a 7.9-month treatment benefit, translating to a 31% reduction in tumour progression risk.
A team of archaeologists has discovered evidence of frankincense being used in Roman burial rites in Britain, shedding new light on the country's funerary practices. The analysis of debris and skeletal remains from across Britain revealed that these precious substances were transported to the empire's northern outpost despite its decline.
Researchers at Uppsala University have developed a new battery concept using renewable biomaterials from alfalfa and pine resin, which can be recycled with low energy input and non-hazardous chemicals. The battery proved capable of delivering up to 99% of the energy output from a spent battery.
A Bronze Age wine cellar was uncovered at an ancient Canaanite palace in modern-day Israel, showcasing wine residue from over 40 jars. The jars contained chemical compounds indicative of wine, as well as subtle differences in ingredients or additives such as honey and cedar oil.
Researchers use new technique to analyze amber's molecular structure, discovering succinic acid plays a crucial role in its stability and longevity. This finding sheds light on the gemstone's extreme durability, which has puzzled scientists for decades.