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denotes the surface energy of the solid–liquid, liquid–gas, or solid–gas interface θ c {\displaystyle {{\boldsymbol {\theta }}_{c}}} is the measured contact angle A series of solutions with known surface tension (e.g., Dyne solutions) can be used to estimate the surface energy of the polymer substrate qualitatively by observing the ...
Solid ground curing (SGC) is a photo-polymer-based additive manufacturing (or 3D printing) [1] technology used for producing models, prototypes, patterns, and production parts, in which the production of the layer geometry is carried out by means of a high-powered UV lamp through a mask.
Engineered stone is a composite material made of crushed stone bound together by an adhesive to create a solid surface. The adhesive is most commonly polymer resin, with some newer versions using cement mix. This category includes engineered quartz (SiO 2), polymer concrete and engineered marble stone. [1]
SU-8 molecule. SU-8 is a commonly used epoxy-based negative photoresist.Negative refers to a photoresist whereby the parts exposed to UV become cross-linked, while the remainder of the film remains soluble and can be washed away during development.
Figure 1. 30 cm x 30 cm x 1.2 m object created via HARP. Taken from Ref. [1]. Figure 2. Schematic for 3D printing using HARP. Taken from Ref. [1]. High-area rapid printing (HARP) is a stereolithography (SLA) method that permits the continuous, high-throughput printing of large objects at rapid speeds (Figure 1). [1]
An aryloxy-substituted polymer has also been developed as a fire resistant expanded foam for thermal and sound insulation. The patent literature contains many references to cyclomatrix polymers derived from cyclic trimeric phosphazenes incorporated into cross-linked resins for fire resistant circuit boards and related applications.
In May 2016, a new office building opened in Dubai, a 250-square-meter space (2,700-square-foot), touted by Dubai's Museum of the Future as the world's first 3D-printed office building. [16] In 2017, a project to build a 3D-printed skyscraper in the United Arab Emirates was announced. [17] Cazza construction would help to build the structure ...
Electrospinning of polymer melts eliminates the need for volatile solvents in solution electrospinning. [35] Semi crystalline polymer fibers such as PE, PET and PP, which would otherwise be impossible or very difficult to create using solution spinning, can be created. The setup is very similar to that employed in conventional electrospinning ...