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22 Posts in this encyclopedia categoryE-modulus
Modulus of elasticity or E-modulus is a measure of the elasticity of a material. It is a material-dependent constant that indicates the relationship between the relative change in length of the material and the applied stress, below the elasticity limit. The modulus of elasticity indicates the slope of the first part of the stress-strain diagram.
Elastic deformation
In elastic deformation, the shape recovery is complete after the removal of tension. Elastomers are usually composed of very long linear macromolecules, where the high elasticity is obtained by (a limited number of) bridging links between the different chains. Thus, a network is formed whose plasticity decreases as the number of bridge connections increases. In the case of natural rubber, we speak of a vulcanisation process, because the cross-linking occurs by heating with sulphur. Elastomers are highly elastic and have a high coefficient of friction. Examples of elastomers include: all synthetic rubbers, isoprene rubber, butadiene rubber, styrene butadiene rubber (SBR), polyurethane rubbers and silicone elastomers.
Elastic elongation
The elastic stretch is the elongation of the material, expressed as a percentage of its original length, in the elastic portion. After the removal of the tensile force, the material will regain its original length.
Elasticity
Elasticity is the ability of a fabric to spring back to its original shape after undergoing a deformation. A perfectly elastic fabric springs back immediately after the mechanical load has been lifted, returning in full the work done to create the deformation. When deformation and rebound are slightly delayed, although the shape recovery and load lifting may be complete, some labour is still lost in heat.
Elasticity limit
The elastic limit is the highest stress at which elastic strain still occurs. As such, the elasticity limit is the limit of being elastic.
Electrostatic charge
Electrostatic charging occurs when there is friction or even simple contact between two insulators. The electrical charges formed can be annoying and even dangerous under extreme conditions due to their force effects.
Enamelling
Enamelling is applying a thin, glassy, opaque or transparent mass to cover or decorate metal, glass, stone objects or ceramics.
EP resin - epoxy resin
The resin component is prepared by condensation and addition of epichlorohydrin and a divalent or multivalent phenol derivative. The reaction between these two raw materials produces the epoxy resin. The epoxy group found twice in each molecule of the resin is highly reactive and can react with appropriate substances called hardeners. Polyamines and polyamides are most commonly used as hardeners. These substances are able to open the ring at the epoxy group by possessing reactive hydrogen atoms. The curing process is an exothermic reaction, so heat is released. for more info, see: https://www.v-sure.eu/nl/producten/epoxy
Epichlorohydrin
Epichlorohydrin is also known as carbon dioxide chloride. Through a condensation reaction and an addition reaction of epichlorohydrin and a divalent or multivalent phenol derivative, epoxy resin is obtained.
Epovoss
Epovoss is a brand offered by Vosschemie. Epovoss products are always epoxy resin-based and can serve, for example, as varnishes, adhesives, fillers or laminating resins. Epovoss has always been at the forefront of manufacturing epoxy resin products for applications on boats. Epovoss products also come into their own in the construction industry. for leather info, see; https://www.v-sure.eu/en/products/epoxy/epoxy-resin/
Epoxy
Epoxy or polyepoxide is a chemical compound. It is an epoxide polymer composed of 2 carbon atoms (C) and 1 oxygen atom (O) in a ring-shaped structure. Epoxy distinguishes itself from polyester by, for example, greater flexibility, the fact that it adheres to almost any surface and the fact that it yellows under the influence of UV and therefore has to be finished with UV-resistant lacquer. for more information, see https://www.v-sure.eu/en/knowlegde-center/inspiration/creating-a-river-table/
Epoxy adhesive
Epoxy adhesive is a two-component adhesive that has both industrial and domestic applications. One component, specifically the filler, is an epoxy resin. The second component is a hardener, which when mixed creates a strong adhesive bond. Epoxy adhesive can be applied as a topcoat (coating), but is also used in combination with glass fibres. The adhesive can be easily removed by carefully and not excessively heating the joint with a paint burner. For more info;https://www.v-sure.eu/en/super-epoxy-glue-30-g
Epoxy EP
Epoxy or polyepoxide is a chemical compound. It is an epoxide polymer composed of 2 carbon atoms (C) and 1 oxygen atom (O) in a ring-shaped structure. Epoxy distinguishes itself from polyester by, for example, greater flexibility, the fact that it adheres to almost any surface and the fact that it yellows under the influence of UV and must therefore be finished with UV-resistant lacquer. For more information, see https://www.v-sure.eu/en/products/epoxy/
Epoxy laminate
Epoxy laminate is an epoxy-based laminate. Epoxy BK, for example, is a thin liquid laminating epoxy used to produce moulded parts in combination with fibreglass, carbon fabric or aramid fabric.
Epoxy mortar
Epoxy mortar can be used to fill cracks and holes in concrete, where a quick cement may come loose. Epoxy-based mortars are highly chemically resistant to dilute acids and alkalis. With an epoxy mortar, it is even possible to reinforce the surface, for example at the edge of a step or as a base for machinery.
Epoxy putty
Epoxy putty is an epoxy-based putty. For example, cracks and holes in a boat can first be filled with an epoxy putty, before further lining. For more info, see: https://www.v-sure.eu/en/products/filler/
Epoxy resin
Epoxy resins have many successful applications in the plastics industry. This is mainly due to the fact that they are versatile, easy to use and therefore universally applicable. Epoxy resins have many appearances: adhesive, paint, powder, resin, laminate, composite, etc. Cured epoxy resins are super-strong materials that hardly shrink at all. They insulate very well and can be used at operating temperatures from -80 to +180 °C. They are chemically very stable and exceptionally resistant to fractures and cracks. Liquid epoxy resins are known for their exceptional adhesion to all possible surfaces. They are always completely bubble-free without the need for external pressure. Pressed or cast pieces, as well as composites, weigh much less than the traditional materials that have been replaced in cars and aircraft. This significantly reduces fuel consumption, benefiting the environment. Epoxy resins thus have many applications, they are used for example in household appliances, in large building structures, in computers, in satellites, on beverage cans, on ship walls, etc. For more info; https://www.v-sure.eu/en/products/epoxy/
EVA
EVA stands for ethyl vinyl acetate. It is a copolymer with a random distribution. A copolymer is obtained when at least two different monomer units are combined in the polymer chain. With a random distribution, the different monomer units are randomly arranged in the polymer chain. EVA is a type of plastic film used as a plastic roofing film. Plastic roof films (ECB, EVA and PVC) are used as an alternative to bituminous roofing.