Nylon As Adhesive

We may have known and often hear that nylon use on textile industry as dress and cloth material, but actually nylons is a polymer or resin that can be used in many application like for fiber and also can be used as adhesive.

The types of nylon in common use as fibers are made from a straight chain diamine and a straight chain dicarboxylic acid. A nylon "salt" is the first product of the reaction; this polymerizes through a condensation reaction to form a linier macromolecule - a superpolyamide such as thermoplastic fiber known sumply as "Nylon".

This nylon homopolymers in their unsubtituted form are not soluble in common organic solvents; they are soluble chiefly in phenol and some organic acids, and therefore do not make adhesive solutions that are very convenient to use. On the other hand some subtituted nylons and some copolymers of unsubtituted nylon are soluble in certain alcohols and in alcohol/water mixtures.

Nylon can use by themselves as hot melt adhesives, the nylons are capable of giving fair adhesion to metal and avariety of other materials including wood.

Polyamide Resins and Nylons

A polyamide is a polymer obtained by reacting a di- or poly-carboxylic acid with a di- or polyamine. Two types of ployamide are of interest as adhesives one is the Versamid type of polyamide resin and the other is the Nylon type of polyamide plastic. The former is a relatively low molecular weight material prepared by the condensation of dimerised vegetable fatty acids and polyamines. It is largely the type of acid, for example, dilinoleic acid, that makes the product of the reaction different from the polymer of relatively high molecular weight called nylon. For interest, nylon is by definition a generic term for a long chain synthetic polymer amide capable of being formed into a filament in which the recurring amide elements can be oriented in the direction of the axis. It is no doubt possible to make a Versamid type of polyamide that would fit into the nylon definition, but some distinction must be made here because the products about to be considered are very different in non chemical respect.