Rosin has excellent properties such as anti-corrosion, insulation, adhesion and softening, and is widely used in soap, paint, pigment, rubber and other industries. However, there are also some shortcomings, so it is necessary to modify the rosin, mainly to change the non-cyclic double bond structure of the resin acid, such as hydrogenation (hydrogenated rosin), disproportionation (disproportionated rosin), polymerization (polymerization rosin) and other reactions to improve the stability of the rosin, so that it is more widely used and the effect is more ideal.
Hydrogenated rosin is one of the dominant varieties of modified rosin, combining the advantages of hydrogenated rosin and rosin. Hydrogenated rosin is a compound formed after the conjugated double bond structure of abietic acid in rosin is partially or completely hydrogenated into saturated bond under certain temperature and pressure under the action of catalyst. Hydrogenated rosin can be derived into a series of compounds, mainly ester products, such as methyl ester, ethyl ester, glycol ester, ethylene glycol ester, glycerol ester and pentaerythritol ester.
Hydrogenated rosin can be made into modified rosin for electronic use, and the flux made has good welding performance, high welding reliability, and no corrosion to electronic components, humidity and heat and mold resistance.
In the adhesive industry, hydrogenated rosin is often used as a plasticizer in hot melt, pressure sensitive, rubber adhesives, such as hydrogenated rosin can be used as a thickening agent for sealing packaging materials.
In the coating industry, for example, automotive coatings prepared with deep hydrogenated rosin as raw materials still maintain the original color and beautiful color after use; Hydrogenated rosin can also be used as a solvent-free, environmentally friendly waterproof paper coating material.
In the food industry it can be used as a chewing gum substrate, so that chewing gum long-term storage without discoloration; Hydrogenated rosin can also be used to make fruit protective coatings.
In papermaking, hydrogenated rosin can be used to make high-grade paper with good water resistance and light resistance. In the pharmaceutical industry, hydrogenated rosin can be used as a tackifier for ointment.
In the cosmetics industry, hydrogenated rosin is used as a liquid lip balm; In shampoos, hydrogenated rosin can add luster to the hair.
The hydrogenation process changes the molecular structure of the rosin, giving the product better color, thermal stability and viscous properties. In addition, these resins provide an environmentally friendly alternative to petroleum-based resins and promote sustainability in various industries. As a versatile and environmentally conscious material, hydrogenated rosin resins are constantly being valued for their unique qualities, revolutionizing various fields.