1: natural hot melt adhesive.
Main ingredients: asphalt, wax, rosin, shellac, etc.. The characteristic is that the price is suitable and the use is convenient.
Two: thermosetting resin hot melt adhesive.
It is divided into two categories:
1: epoxy resin hot melt adhesive.
The main ingredients are high molecular weight epoxy resin or other epoxy resin, solid solidifying agent and filler.
It has high bonding strength to metal, and is often used in bonding metal ceramics.
2: phenolic resin hot melt adhesive.
The main ingredients are the first - order phenolic resin, polyvinyl acetal, nylon and other toughening resins and fillers.
The technology is simple, high bonding strength to metal and like hot melt adhesive, which is commonly used in the bonding of cermet.
Three: thermo plastic resin hot melt adhesive.
1: vinyl resin hot melt adhesive.
The main ingredients are polyethylene, random polypropylene, cis - vinegar copolymer, ethylene - vinyl acetate copolymer, stabilizer, antioxidant, and filling material.
Characteristics: cheap, non-toxic, adhesive to plastic, film, paper, metal foil and fabric, polyethylene powder has good adhesion to anodized aluminum, but it has poor heat resistance and low cohesion strength. Mainly used in packaging, no textile, furniture strong material plastic bonding.
2: polyester resin hot melt adhesive.
The ingredients are copolymerized polyester tackifier fillers and so on.
Characteristics: non-toxic, no pollution, good adhesive force to fabric polyester, high cohesion strength, used in garment processing, furniture car adhesion.
3: polyamide hot melt adhesive.
The main ingredients of two poly unsaturated fat acid polycondensate with small amounts of other dicarboxylic acid and amine two yuan.
It is characteristic of fabric, metal foil, paper with good adhesive force, high cohesion strength. The same is used in clothing processing, furniture car adhesion.
4: polyurethane hot melt adhesive.
Ingredients: polyurethane resin. Features and uses are the same.
5: polyphenylene sulfide phenol oxygen resin hot melt adhesive.
The main ingredient is phenol oxygen resin, it has good adhesion to metal, high cohesion strength and good heat resistance of polyphenylene sulfide.