Many injection molding products will have odor during processing, and users will feel uncomfortable. How to avoid this situation during the injection process? Jinan Tongkang Mould Factory will serve you.
1. Strictly control the use of additives
The use of tertiary amine catalysts for the production of polyurethane foams usually results in a very strong odor, and moisture in the window of the car, we can find that instead of using polyols, the polyols are composed not only of the polyurethane molecular chain, but also have the same catalytic activity, Some polyols can even replace half of the tertiary amine catalyst, so the odor of the injection molded product disappears.
2. Use more pure resin
Many plastics, especially polyvinyl chloride, styrene, ethyl acetate, acrylates, and other residual trace monomers, produce odors. Very few monomer residues can be used to remove odors, and the best choice is odorless resins.
3. Pay attention to the use of adsorbents
If a small amount of zeolite is added to the polymer, the information odor can be removed. Zeolite crystals have a lot of blur, and blur can capture small molecules like gas.