Rosin is a non-volatile natural resin obtained from pine turpentine by different processing methods. Rosin is an important chemical raw material widely used in soap, paper, paint, rubber and other industries.
Rosin application:
Rosin is often used as a tackifying resin in hot melt, pressure sensitive and solvent based adhesives to increase initial tack and improve bond strength. Rosin also improves the dryness and peel strength of the aqueous acrylate laminating adhesive in an amount of 6% of the total monomer. Rosin is a weakly acidic substance. If the amount of SBS type universal glue or spray glue is too large, it will cause corrosion of the iron package, causing the glue to quickly turn brownish black, although it does not affect the bonding performance, but the appearance is Doubtful.
Rosin is very sensitive to the action of light, heat and oxygen, especially the powder is very easy to oxidize, so the hoop is stored in a whole block to prevent oxidation and darken the color and change the performance. When the surface of the massive rosin is oxidized, an oxide film is formed to prevent further oxidation of the internal rosin. Moisture accelerates the rosin oxidation process and releases acetic acid upon deep oxidation.
Rosin drying equipment Product introduction:
ZPG vacuum squeezing dryer is a novel horizontal intermittent vacuum drying equipment. The wet material is evaporated by conduction. The scraper stirrer continuously removes the material on the hot surface and forms a circulating stream in the container to evaporate. It is then pumped out by a vacuum pump. The machine adopts large-area interlayer heating method, which has large heat transfer surface and high thermal efficiency. The stirring is set to form a continuous circulation state of the material in the cylinder, which further improves the uniformity of heat of the material, thereby smoothly performing slurry, paste and paste. The material is dry.
Rosin drying equipment Adapting materials:
◎The following materials are dried in the pharmaceutical, food, chemical and other industries:
◎Applicable to slurry, paste and powder materials;
◎ heat sensitive materials requiring low temperature drying;
◎Easy to oxidize, explosive, strong irritant, highly toxic materials;
◎Requires the recovery of organic solvent materials.
