BACKGROUND Chemicals that have estrogenic activity (EA) can potentially cause adverse health effects in mammals including humans, sometimes at low doses in fetal through juvenile stages with effects detected in adults. Polycarbonate (PC) thermoplastic resins made from bisphenol A (BPA), a chemical that has EA, are now often avoided in products used by babies. Other BPA-free thermoplastic resins...

Two soft lithography based fabrication techniques were employed for fabricating mechanically independent, freely suspended polymer microstructure from poly(n-propyl methacrylate) (PPMA) and poly(methyl methacrylate) (PMMA). Both methods involve a micromolding process followed by thermal bonding to the substrate. The first method, sacrificial layer micromolding, uses a water-soluble sacrificial ...

Life Cycle Assessment (LCA) and Techno-economic (TEA) are crucial for a comprehensive evaluation of the novel high-performance thermoplastic polymer polyoxazolidinone (POX).

The breathing mode vibration of a thermoplastic polymer film under optical radiation pressure force resonant excitation leads to mean thinning the film, measured by an interference technique.

A new high speed and potentially economical method of creating a composite material and structures therefrom is tested. The method consists of spinning composite fibers from a melt blend of a thermoplastic with a liquid crystal polymer (LCP). Discontinuous fibrils of the LCP are formed in situ during the spinning process. These composite fibers are aligned and placed in a mold and heated to mel...

OBJECTIVE To analyze a new endodontic sealer material commercially known as Resilon and to describe in detail the experimental techniques employed that lead to the identification of the composite material. METHODS An extensive structural, thermal, and physical characterization was used to identify a new endodontic sealer material using the following techniques: Fourier transform infrared (FTI...

Abstract The application of polymer in an asphalt concrete (AC) mixture has reached wide popularity lately to deal with the increasing demand for higher quality roads heavier traffic loading. Ethylene-vinyl acetate (EVA), classified as a thermoplastic, is currently one most popular polymers employed. This research attempts evaluate effect adding EVA by means dry method, namely pouring additive ...