(A) by source of raw materials:

    1. Natural adhesives:

    Comprises a bioadhesive: starch, dextrin, proteins, gelatin, shellac, natural rubber

    Mineral binders: asphalt.

    2. artificial binders:

    Comprising an inorganic binder, water glass and the like.

    Organic binder: synthetic resin, synthetic rubber and the like.

    (B) by Use: This is defined as the use of the classification in which the packaging. There are adhesive paper products, plastic products, adhesives and wood adhesives.

A varied adhesive

    (C) by the use of feature points:

    1. Water-based adhesives: water as a solvent adhesive. Such as polyvinyl alcohol, carboxymethyl cellulose, ethylene acetate copolymer, starch paste, dextrin and the like.

    2. Solvent-based adhesives: a binder insoluble in water and soluble in other solvents. Such as shellac, butyl rubber, vinyl chloride resin or the like.

    3. latex binder: The composition of this adhesive only suspended in the vehicle (usually water) without dissolving. Such as starch, vinyl acetate latex and the like. Commonly used vinyl acetate latex.

    4. The hot melt adhesive: is a completely non-aqueous solid adhesives only become liquid upon heating, cooling hot adhesive after curing, such as 10096 activity polyurethane.

    5. The solventless liquid adhesive: at room temperature is a low molecular weight viscous liquid. Such as the molecular weight of the low molecular weight epoxy 340-400.

    Adhesive has great adhesion, it is mainly from four aspects: first, when the surface contact between the gum and charge exchange, the two surfaces together by electrostatic attraction of gravity, and the second, because many of the molecular chain of the polymer compound is, when the two substances intermolecular contacts that will produce cross-linking reaction, many small chain screwed together on each other, have a tremendous adhesion, third, mechanical sticky attachment force, i.e., when the adhesive in the liquid state to penetrate into the pores of a clean adherend surface, to be cured after the formation of a mechanical bond of the anchoring force, the fourth, is because when the molecules of the two substances apart When close, it will produce gravity. In fact, many of the above-mentioned adhesive is an adhesive factor of several functions simultaneously generate adhesion.