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The epoxy value is defined as the number of moles of epoxy group per 100g resin. So as an example using an epoxy resin with molar mass of 382 and that has 2 moles of epoxy groups per mole of resin, the EEW = 382/2 = 191, and the epoxy value is calculated as follows: 100/191 = 0.53 (i.e. the epoxy value of the resin is 0.53). [6]
The second most important part of FBE coatings is the curing agent or hardener. Curing agents react either with the epoxy ring or with the hydroxyl groups, along the epoxy molecular chain. Various types of curing agents, used in FBE manufacture, include dicyandiamide, aromatic amines, aliphatic diamines and organic acid anhydrides. [6]
Epoxy is the family of basic components or cured end products of epoxy resins. Epoxy resins, also known as polyepoxides, are a class of reactive prepolymers and polymers which contain epoxide groups. The epoxide functional group is also collectively called epoxy. [1] The IUPAC name for an epoxide group is an oxirane.
The price of petrol has increased from 65 naira ($0.40; £0.26) per litre to at least 141 naira in filling stations [6] and from 100 naira to at least 200 naira on the black market, from which many Nigerians buy their fuel.
Heat-sensitive carbon fiber tubes coated with a UV curable powder coating. Powder coating is a type of coating that is applied as a free-flowing, dry powder.Unlike conventional liquid paint, which is delivered via an evaporating solvent, powder coating is typically applied electrostatically and then cured under heat or with ultraviolet light.
Epoxy putty refers to a group of room-temperature-hardening substances used as space-filling adhesives. Exact compositions vary according to manufacturer and application. Exact compositions vary according to manufacturer and application.
In compliance with the Nigerian Enterprises Promotion Act 1972, 40 percent of the company's share capital was acquired in 1974 by Nigerian citizens and associations and in accordance with the provisions of the Nigerian Enterprises Promotion Act 1977, an additional 20 percent of the UAC's share capital was publicly offered in 1977, increasing ...
Daily Post is a Nigerian newspaper published by Daily Post Media Ltd., based in Lagos. It reports on local and national news, politics, metro, business, entertainment, sports and opinions. In March 2015, the newspaper debuted the free distribution of its print version across Nigeria. [1] [2] [3]