Perfluoroalkyl resins are compounds containing hydrophobic alkyl chains, which are partially or fully fluorinated. These resins are heat-resistant (up to 260°C) thermoplastics used as coatings in the metallurgical industry (because of their mechanical and anti-adhesive resistance), as waterproofing agents for coating fabric, in papers used in the food industry, and in surface-active products, w...

Bitumen emulsions (BE) are widely used in road construction, for building and structure waterproofing. Storage stability is one of the main BE requirements. They should only break on contact with surface. The sodium oleate effect as a surfactant anionic bitumen waterproofing purposes has been studied. increased storage have developed. optimal content oleate, providing high complex emulsion resu...

Waterproofing of the aerial organs of plants imposed a big evolutionary step during the colonization of the terrestrial environment. The main plant polymers responsible of water repelling are lipids and lignin, which play also important roles in the protection against biotic/abiotic stresses, regulation of flux of gases and solutes, and mechanical stability against negative pressure, among othe...

New surface-active agents in waterproofing sprays are frequently tested for acute inhalation toxicity in vivo according to OECD Test Guideline 403. In order to refine and reduce the number of acute inhalation tests performed, we propose a screening test that uses isolated lungs. The test consists of the exposure of isolated, ventilated and perfused rat lungs, to aerosolised formulations of wate...

The finite element method was used to simulate strain transfer from bone to a calcium phosphate ceramic (CPC) coated strain gauge. The model was constructed using gross morphometric and histological measurements obtained from previous experimental studies. Material properties were assigned based on experiments and information from the literature. Boundary conditions simulated experimental canti...