Never have we been known about the significance of rosin in nature until it became the daily commodity in our day to day life. To meet the increasing demand, synthetic resins came into existence.
From imitation jewelry to paints, the application of resin is vast indeed.
The process of resin manufacturing is very simple. All the types of resin have similar or identical way of processing.
There are few major resins that are widely used in the industries,
- Phenolic Resin
- Alkyd Resin
- Polyester Resin
- Epoxy Resin
Phenol, Formaldehyde and a catalyst are mixed together and dosed in a kettle. The mixture generates a lot of heat.
In chemical engineering terms it is commonly known as exothermic reaction.
The mixture is allowed to settle after bringing down the temperature from 100-130 deg. The bottom product is removed and dried in a pulverizer. Later it is packed and sold in the market.
Epichlorohydrin (ECH) and Bisphenol-A (BPA) along with 20-30% caustic soda is dosed in a reactor. The solution boils where unreacted ECH is removed and two phase is separated by an inert solvent namely methylisobutylketone (MIBK).
The bottom product is washed with water and additives are added to induce viscosity,hardness etc.
In order to bring glue property, it is always packed along with a primary or secondary amines (-NH2) i.e the usual colourless liquid we see along with a pale yellow tube in epoxy packed glue.
Polypropylene glycol, melic anhydride and styrene monomer in addition small quantities of inhibitors and other additives are dosed in a reactor where esterification takes place.
Glycol and anhydrides is added to maintain the esterification. The mass is heated up to 200°C under agitation and inert gas N2 is slowly applied. Batch is cooled to 100 – 102°. Styrene is pumped and viscosity is maintained. It is then pumped to storage tanks and later canned and sold.
A polybasic acid and a polyhydric alcohol are treated in a reactor under definite process parameters. Water from the esterification is removed from the process, gelation of the alkyd resin occurs in the process, The proportion of water or steam is maintained to decrease the gel formation in the final stage. The thick viscous solution exiting the reactor is cooled and pumped into storage tanks.
It is then packed in cans and drums and sold in market.
Advantages of our technology.
- Skid mounted system
- Low maintenance equipment.
- Available in both Automatic and semi Automatic operation
- Commissioning and formulation assistance.
- Training to skilled and unskilled personnel
- ROI recovery assistance.