Articles tagged with Resins
Researchers have developed strategies to balance fire safety, recyclability, and network stability in flame-retardant recyclable epoxy systems. By integrating dynamic covalent bonds and flame-retardant groups into the epoxy crosslinking network, these systems can improve fire safety and recyclability while maintaining structural integr...
Researchers developed a non-invasive fluorescence imaging strategy to detect early signs of corrosion on iron-containing metal artifacts. The technique confirmed its utility on ancient artifacts, revealing the impact of aging polymer coatings on these treasures.
Researchers developed a non-invasive fluorescence imaging strategy to detect early signs of chemical reactions between polymer coatings and iron-containing metals. The technique revealed damaging carboxyl groups that can accelerate rusting on certain artifacts.
A team of researchers analyzed how different baseball treatments impacted finger-ball slip distance and found that stickier surfaces resulted in faster pitches and more directional control. The study's findings aim to enhance pitching performance, injury prevention, and equipment development.
Researchers at Duke University have developed a polymer that can be used in commercial 3D printers without solvent, leading to major advantages across different applications. The new solvent-free material has been shown to improve mechanical properties while maintaining biodegradability.
A new process developed by Lehigh University researchers uses evaporative ion exchange (EIX) to concentrate hypersaline brine at room temperature, avoiding scaling and fouling. The process has shown promising results in concentrating salts from hypersaline water, with the potential for widespread use.
Researchers at NREL create a novel resin called PECAN that performs on par with industry standards and outperforms certain thermoplastic resins. The process allows for the complete breakdown of blades in six hours, making it possible to recycle and reuse components.
A decolorization process using resin adsorption and oxidative decolorization was developed to address color impact of Sapindus mukurossi extract in high-end products. The extracted SME exhibited stability with no significant color change during long periods at higher temperatures, showcasing sebum-control efficacy.
A team of researchers at Nagoya University has developed a novel method to seal cracks and fractures in rocks using a concretion-forming resin. The resin holds its shape and seals flow-paths rapidly, withstanding six earthquakes in a test period, making it more durable than conventional cement-based materials.
Researchers from the University of Birmingham have designed a new type of recyclable resin made from biosourced materials for use in 3D printing applications. The feedstock is made from lipoic acid, a naturally occurring fatty acid molecule, and can be recycled back into its constituent parts.
Researchers have developed a bio-based hyperbranched flame retardant called PA-DAD, which significantly improves the limiting oxygen index values and UL-94 ratings of epoxy resin composites. The addition of PA-DAD also enhances the mechanical properties of EP composites, including tensile, flexural, and impact strengths.
Paleobiologist George Poinar Jr. presents an early record of an ant-mimicking spider in fossilized resin, shedding light on defense strategies and evolutionary processes. The specimen, Myrmarachne colombiana, has developed a remarkable transformation to resemble ants, with adaptations including modified body parts and behavior.
Amino acids from lysine, glutamic acid, leucine, and serine exhibit superior curing properties compared to commercial hardeners. This study demonstrates the potential of these bio-based epoxy curing agents as a renewable alternative to petrochemical-derived amines.
Researchers from OIST used X-ray micro-CT to study a 38 million-year-old termite pair trapped in amber, revealing a male and female in tandem running behavior. The discovery provides new insights into the fidelity of behavior fossilization in amber.
A new study of ancient DNA in chewed resin from Sweden's Huseby Klev site reveals the diets of 9,700-year-old teenagers, including deer, trout, and hazelnuts. The analysis also shows one individual had severe gum disease.
MIT researchers successfully produced a miniaturized quadrupole filter using additive manufacturing, achieving precision comparable to commercial-grade filters at a fraction of the cost and weight. This breakthrough enables the development of portable mass spectrometers for rapid chemical analysis in remote settings.
Researchers at University of Tokyo developed a new plastic material called VPR, which can maintain complex shapes, repair itself with heat, and biodegrade in seawater. The material has improved toughness, shape memory, and recyclability.
Researchers from Swiss Federal Laboratories for Materials Science and Technology (EMPA) have developed a fully recyclable, flame-retardant epoxy resin-based plastic. The new material retains excellent thermomechanical properties while being reshaped like a thermoplast due to the addition of a special phosphonate ester molecule.
Workers cutting, grinding, and polishing artificial-stone slabs for countertops are developing silicosis due to high concentrations of silica and polymer resins. Researchers call for public health measures, including banning the product and improving worker safety.
Researchers have developed radiation-resistant inorganic resin scaffolds to separate radium, actinium, and lead from each other. The zirconium-based materials demonstrate good separation capabilities and remarkable radiopurities using relatively simple chemicals.
A team of Japanese researchers has successfully developed a recycling photoreactor that enables the synthesis of optically pure compounds with high yields, achieving an optical purity of 98-99%. The system uses a two-step rapid photoracemization process and can produce enantiomerically pure chiral sulfoxides in yields higher than 80%.
Researchers at the University of Gothenburg have developed a new epoxy resin monomer based on isosorbide, a substance produced from glucose, to reduce contact allergies. The new monomer is far less allergenic and not based on Bisphenol A (BPA), a known endocrine disruptor.
Hokkaido University researchers evaluate a material used to build model arteries, finding it suitable for medical education and surgical practice. The study also highlights the potential for improved assessment of 3D printing technology in creating highly accurate models of individual patient's artery structure.
Researchers created adaptive optical phantoms by combining multiple pigments to mimic target tissue's optical properties, successfully validating them in extensive experiments. The new platform enables broader band spectra for emerging hybrid modalities and novel instruments.
Researchers have developed a shellac-based coating to improve the gas barrier properties of moulded pulp materials, making them suitable for food packaging. The coating, combined with nanofibrillated cellulose, provides superior water resistance and thermal stability, while preserving environmental sustainability.
A fossilized flower, dated to 40 million years ago, was found encased in amber. The rare flower is believed to be from an ancient evergreen plant related to the Asian species Symplocos.
Rosin powder increases friction by over 20%, reducing variation in friction between participants and pitches. A wax-like sticky substance doubles this effect, potentially increasing ball spin rates. The study suggests MLB balls could be made less slippery for improved ball control.
A University of Illinois team discovered liquid crystalline epoxy resins with high thermal conductivity, outperforming common polymers by up to 5 times. The breakthrough was achieved by precisely controlling the lengths of ethylene repeat units in the polymer structure.
Researchers have developed a new composite resin suitable for wind turbine blades that can be recycled into new blades or other products. The material has the same physical properties as its predecessor, making it ideal for reuse.
A new light-based sensor harnesses the light-guiding properties of spider silk to detect and measure small changes in the refractive index of a biological solution, including glucose and other types of sugar solutions. The sensor is practical, compact, biocompatible, cost-effective, and highly sensitive.
The University of Houston research team has successfully developed a method for 3D printing organic semiconductor devices using multiphoton lithography, enabling the creation of highly conductive microstructures. The technology has potential applications in emerging fields such as nanoelectronics and bioelectronics.
Researchers at Concordia University have developed a new platform technology called direct sound printing (DSP), which uses soundwaves to produce new objects. The process creates sonochemical reactions in minuscule cavitation regions, generating pre-designed complex geometries that cannot be made with existing techniques.
Researchers discovered a new species of beetle in the family Buprestidae that contributes to the production of red propolis. The beetle's larvae develop inside stems of a specific plant, and its resinous exudate is used by honey bees to make red propolis.
Researchers analyzed ancient incense samples from a Tang Dynasty Buddhist temple and found evidence of exotic spices like elemi and frankincense. The findings provide insight into the complex role of incense in religious rituals and court activities during this period.
Researchers developed a strong, water-resistant wood glue using glucose and citric acid for plywood. The adhesive meets China's standard requirement and is more energy-efficient than traditional adhesives.
A group of researchers from Harvard University developed a novel technique to print entire volumes without support structures, eliminating the limitations of traditional layer-by-layer approach. By using an upconversion process and nano capsules, they create self-supporting resin that hardens in three dimensions.
Wind turbine blades made from glass fibre-reinforced polymer can serve up to 25 years before ending up in landfills. Lithuanian researchers have proposed a method to break down these composites, extracting usable materials like phenol and fibre for reuse.
Researchers at the University of Delaware have developed a low-pressure method to convert industrially processed biomass into high-performance plastics and valuable chemicals. The process uses glycerin as a solvent instead of methanol, reducing costs and environmental impact.
A research team at the Beckman Institute for Advanced Science and Technology developed a chemical process to mimic trees' vascular systems in foamed polymers, adding structure and enabling directional fluid transport. The team discovered that increasing or decreasing gelation time enables direct control over the foam's cellular structure.
A team of scientists has discovered the oldest modern-looking crab, Cretapsara athanata, preserved in 100-million-year-old amber. The fossil is remarkably complete, including delicate tissues and well-developed gills, revealing an aquatic to semi-aquatic animal that defies explanation for its preservation in tree resin.
Researchers introduce flower-like nickel phyllosilicates to epoxy resin, enhancing mechanical property, thermal stability, and tribological response. The addition of 5% nanofillers can suppress wear resistance by 86.6%, improving anti-wear properties.
The American Association for Dental Research (AADR) has recognized three students in each of two categories with monetary awards for their research on various dental topics. This year's SCADA winners will receive $1,000, $750, or $500 based on their placement.
Researchers develop a one-pot process to synthesize polyacrylates and polymethacrylates from biobased materials, minimizing environmental impact. The new method reduces the E-factor by three quarters, making it more sustainable than traditional plastic production.
Researchers identified the distribution of resin fractions using liquid-adsorption chromatography and MALDI spectroscopy. The results showed a decrease in molecular weight after catalytic treatment with a hydrogen donor.
Researchers at Texas A&M University created novel 3D printable phase-change material composites to regulate ambient temperatures in buildings. These composites can be added to building materials or 3D printed as decorative accents.
Scientists have developed a new process to integrate special dyes into electric motor insulation, allowing for early detection of degradation. This could lead to reduced motor replacements and improved efficiency in electric vehicles.
A new type of plastic, poly(diketoenamine), can be recycled indefinitely without losing quality, offering a sustainable alternative to traditional plastics. The material's production and recycling processes are designed to be inexpensive and energy-efficient, making it commercially competitive with conventional plastics.
Researchers from Singapore University of Technology and Design developed the largest range of silicone and epoxy hybrid resins for 3D printing wearable devices, biomedical equipment, and soft robotics. The new resins exhibit excellent interfacial toughness and mechanical properties.
Researchers have identified compounds in Baltic amber that show activity against gram-positive, antibiotic-resistant bacteria. These compounds, including abietic acid and dehydroabietic acid, could lead to new medicines for treating infections caused by these resistant bacteria.
A team of ETH Zurich researchers has developed a 3D-printed bioresorbable airway stent that can be customized to a patient's anatomy. The stents, made from a specially designed resin, are biocompatible and gradually dissolve after implantation.
Researchers found that commercially available 3D-printable resins leach toxic compounds that can induce severe toxicity in mouse oocytes, potentially affecting reproductive health. The study highlights the need to better understand the impact of these materials on human health.
NIST researchers use atomic force microscopy with a nanocylinder tip to measure polymer curing rates and diffusion in 3D printing. The study reveals that controlling light exposure conditions is crucial to uniform part production.
Researchers found dinosaur feathers and mammalian hair preserved in amber from 105-110 million years ago, shedding light on ancient ecosystems. The discovery reveals a new conservation process called 'pull off vestiture', where small portions of animal epidermal structures are trapped by sticky resin.
Researchers have developed a thermoplastic resin for wind blades, enabling recyclability and reducing costs. The material can be melted and reused, decreasing the need for landfills.
Over the past 50 years, cannabis strength has soared, with THC concentrations increasing by 14% in herbal cannabis and 24% in cannabis resin. This rise in potency is linked to an increased risk of problems such as addiction and psychotic disorders.
Researchers from Tokyo University of Science developed a novel strategy to predict the lifetime of replica molds used in UV-NIL by analyzing changes in the contact angle of water on the mold surface. The method uses commercial camera-based systems and can accurately predict when a mold will break, reducing costs associated with UV-NIL.
An international team detected DNA from ambrosia beetles trapped in recent tree resin for less than seven years. The study challenges previous fails in finding DNA in older samples and opens up new possibilities for genetic research.
Researchers at Oregon State University have identified four new species of parasitic, cockroach-killing ensign wasps that became trapped in tree resin and fossilized into amber 25 million years ago. The discovery reveals the wasps' long history of controlling cockroach populations and sheds light on their behavior.
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.
The new method enables precision fabrication of optical components and multimaterial structures, eliminating assembling processes. It allows the production of devices with high precision and low cost, and could aid in the miniaturization of optical devices used for medical treatments and diagnoses.