Results 71 to 80 of about 60,387 (276)
Waterborne unsaturated polyester resins
Macromolecular Materials and Engineering, 2000 The transformation of solvent soluble unsaturated polyester resins into resins able to form stable water dispersion is presented in this paper. The methods of modification are discussed, consisting of the introduction of polar hydrophilic groups such as carboxylic and sulfonic ones (sodium 5-sulfonatoisophthalic acid) into the resin molecule, which ...
Gabriel Rokicki, Hubert Wodzicki
openaire +1 more source
Comparison of flexural properties of aramid-reinforced pultrusions having varied matrices, pretreatments and postcures [PDF]
Aramid-reinforced composite materials of equal fiber volume and varied polymer thermoset matrices were pultruded and flexurally tested to failure. The objective was to improve the flexural properties of aramid-reinforced pultrusions.
Johnson, Gary S. +2 more
core +1 more source
Clinical Advances in Periodontics, EarlyView.Abstract Background Precise control of corticotomy lines is critical in surgically facilitated orthodontic therapy. The Suya method is traditionally performed freehand, which introduces risks of root damage and procedural inconsistency. A digitally guided protocol may address these limitations by enhancing safety and technical predictability. Methods A
Yosuke Tsukiboshi +3 more
wiley +1 more source
Flexible composite film for printed circuit board [PDF]
A flexible printed circuit for a printed circuit board in which layers of reaction product composed of a combination of phenoxy resin - polyisocyanate - brominated epoxy resin, and in which the equivalent ratio of those functional groups is hydroxyl ...
Asakura, M. +3 more
core +1 more source
Hazards protection for space suits and spacecraft [PDF]
, 1990 A flexible multi-layered covering article for protection against the hazards of exposure to the environment of outer space is disclosed. The covering includes an outer layer section comprising an outermost lamina of woven expanded tetrafluoroethylene ...
Dawn, Frederic S., Kosmo, Joseph J.
core +1 more source
Carbon Energy, EarlyView.Hybrid water electrolysis has emerged as a promising alternative to conventional electrolysis for sustainable hydrogen production. The economic potential of replacing water oxidation with organic substrates is assessed. For each substrate, representative electrocatalysts and mechanistic insights are reviewed to identify design principles for optimized ...
Conor Brennan‐Pollak +12 more
wiley +1 more source
Thermal and Mechanical Characteristics of Unsaturated Polyester and Epoxy Blend
Ibn Al-Haitham Journal for Pure and Applied SciencesEpoxy resin and a mixture with unsaturated polyester resin (UPE) were prepared as the matrix materials. The preparation technique included preparing circular and square molds with different weight ratios.
Doaa J. Abed +2 more
doaj +1 more source
Low cost tooling material and process for graphite and Kevlar composites [PDF]
An Extruded Sheet Tooling Compound (ESTC) was developed for use in quickly building low cost molds for fabricating composites. The ESTC is a very highly mineral-filled resin system formed into a 6 mm thick sheet. The sheet is laid on the pattern, vacuum (
Childs, William I.
core +1 more source
Percolation threshold of carbon nanotubes filled unsaturated polyesters [PDF]
, 2010 This paper reports on the development of electrically conductive nanocomposites containing multi-walled carbon nanotubes in an unsaturated polyester matrix.
Battisti, Andrea +2 more
core +1 more source
ChemSusChem, Volume 18, Issue 6, March 15, 2025.Novel organic solvents with an unmodified carbohydrate core were synthesised both from D‐xylose and directly from biomass and were successfully used as reaction media for lipase biocatalysts to synthesise aliphatic and aromatic polyesters. Abstract The use of organic solvents in academic research and industry applications is facing increasing ...
Anastasia O. Komarova +8 more
wiley +1 more source