Results 41 to 50 of about 571 (183)

Effect of Tetrapropylammonium Chloride Quaternary Ammonium Salt on Characterization, Cytotoxicity, and Antibacterial Properties of PLA/PEG Electrospun Mat

Biopolymers, Volume 116, Issue 1, January 2025.
ABSTRACT In this study, poly(lactic acid) (PLA)–tetrapropylammonium chloride (TCL)–poly(ethylene glycol) (PEG) nonwoven networks were produced using PLA, PEG with different concentrations (3, 5, 7, and 9 wt%), and TCL. PEG is included as a plasticizer in PLA polymer, which has high biocompatibility but a brittle structure.
Sena Özdil Şener, Sema Samatya Yilmaz, Merve Dandan Doganci, Erdinc Doganci   +3 more
wiley   +1 more source

Synthesis and characterisation of epoxy-novolac/bismaleimide networks

, 2002
Epoxy-novolac resin was modified with 1,1 prime -(methylenedi-4,1-phenylene) bismaleimide (BMI), and cured with an aromatic amine. Cure behaviour of these blends was studied using differential scanning calorimetry (DSC).
Rao, RMVGK, R.M.V.G.K Rao, A Vanaja, Vanaja, A   +3 more
core   +1 more source

Thermoset and thermoplastic polymer composite with date palm fiber and its behavior: A review

SPE Polymers, Volume 6, Issue 1, January 2025.
An overview of thermoset and thermoplastic polymer composite with date palm fiber. Abstract Date palm fibers possess mechanical properties to synthetic fibers, making them a promising material for fabricating sustainable composites. Date palm fibers exhibit particular hydrophilicity and good mechanical characteristics, which require for particular ...
Shahidul Islam, Fahmida‐E‐ Karim, Md. Redwanul Islam, Md. Abu Saeed, Kazi Ashraful Alam, Mst. Mohini Khatun   +5 more
wiley   +1 more source

Preparation of epoxy resin/silica hybrid composites for epoxy molding compounds

, 2014
Phenolic novolac/silica and cresol novolac epoxy/silica hybrids were prepared through in situ sol-gel reaction of tetraethoxysilane (TEOS). The formed hybrids were utilized as a curing agent and an epoxy resin in epoxy curing compositions, respectively ...
Jeng, R.J., Chen, C.P., 鄭如忠, Liu, Y.L., Lin, Y.L.   +4 more
core   +1 more source

Improving the thermal stability and dielectric properties of epoxy/phenolic resin type (novolac) composites by incorporating carbon nanofibers (CNFs)

Journal of Nigerian Society of Physical Sciences
This study aims to enhance the thermal stability and dielectric properties of an epoxy/phenolic resin-type novolac blend by incorporating carbon nanofibers (CNFs). The EP/novolac-CNF composite was created by dispersing a 10% weight fraction of CNFs into
Elsammani Ali Shokralla
doaj   +1 more source

Mechanical properties of hemp fiber‐reinforced thermoset and thermoplastic polymer composites: A comprehensive review

SPE Polymers, Volume 6, Issue 1, January 2025.
Overview of the stages in hemp fiber development and applications: from extraction and chemical treatment to composite fabrication, moisture absorption effects, and applications. Abstract Hemp fibers have mechanical characteristics similar to those of synthetic fibers, which makes them an attractive material for producing environmentally friendly ...
Shahidul Islam, Md. Byzed Hasan, Marija Kodrić, K. Z. M. Abdul Motaleb, Fahmida‐E‐ Karim, Md. Redwanul Islam   +5 more
wiley   +1 more source

Revestimentos de alta camada obtidos com a modificação de resinas epóxi novolaca pela reação com organo-siloxano e catálise ácida

Química Nova
Epoxy resins are an important class of thermostable polymers, widely used in structural applications or as adhesives. However, the low fracture resistance is their main weakness in many applications.
Roberta Jachura Rocha, José Atílio Fritz Fidel Rocco, Maria Auxiliadora Silva de Oliveira, Koshun Iha   +3 more
doaj   +1 more source

Recent Advances and Prospects in High‐Performance Bio‐Based Phthalonitrile Resins

Advanced Functional Materials, Volume 34, Issue 51, December 16, 2024.
Partially bio‐based phthalonitrile resins, originally developed as heat‐resistant materials like their fossil‐based counterparts, can be explored for broader applications due to their attractive performance characteristics. While challenges remain, particularly in processability and thermal performance, recent advancements in molecular design and green
Boris A. Bulgakov, Ulrich S. Schubert
wiley   +1 more source

Flammability of Novolac epoxy cured with aromatic diamines

International audienceThe modification of Novolac epoxy with the organophosphorus compound 9,10-dihydro-9-oxa-10-phosphaphenanthren-10-oxide (DOPO) to reduce flammability and its influence on curing reactions has been investigated. Three aromatic diamine
Ferreira, Carlos, Ferry, Laurent, Moritz, Vicente, Lopez-Cuesta, J., Silveira, Mauro R.S.   +4 more
core   +1 more source

Microfabrication Technologies for Nanoinvasive and High‐Resolution Magnetic Neuromodulation

Advanced Science, Volume 11, Issue 46, December 11, 2024.
Advancing neuromodulation requires enhanced stimulation resolution. Magnetic stimulation, known for minimal signal loss and tissue damage, is pivotal but current methods like transcranial magnetic stimulation lack precise targeting. Future technologies must achieve submillimeter resolution and selective neuron modulation.
Changhao Ge, Tahereh Masalehdan, Mahdieh Shojaei Baghini, Vicente Duran Toro, Lorenzo Signorelli, Hannah Thomson, Danijela Gregurec, Hadi Heidari   +7 more
wiley   +1 more source