Injection molding manufacturers purchase qualified plastic particles, which is an important guarantee to ensure that injection molding products are free of odor. As for some plastics, which have certain odor, injection molding manufacturers need to take certain measures before production.
Injection molding products are not only required to be qualified, but if the produced injection molding parts have peculiar smell, it will also have a negative impact on customers. In particular, some injection molding manufacturers use qualified plastic particles, and the increased peculiar smell will directly affect consumers’ purchase of products. Therefore, the products processed through injection mold need to be guaranteed to be free of harmful peculiar smell.
1. Strictly control the use of additives
The catalyst tertiary amine used in the production of polyurethane foam will bring strong smell and fog on the inner window of the car. We can find the substitutes of these amines to use polyhydroxy compounds. Polyhydroxy compounds are not only components of the polyurethane molecular chain, but also have catalytic activity. Some polyhydroxy compounds can even replace half of the tertiary amine catalyst, The smell of the injection molding products becomes weak.
2. Select more pure resin
In many plastic molds, especially in PVC, styrene, poly (ethyl acetate) and acrylate, the residual trace amount of monomers will have an unpleasant smell. If the odorless resin is selected, the effect will be better.
3. Pay attention to the use of adsorbent
If a few zeolites are filled in the polymer, the odor of the material can be removed. Zeolites have a lot of crystal hollowness, which can capture those small gas molecules with odor.
Injection molding manufacturers purchase qualified plastic particles, which is an important guarantee to ensure that injection molding products are free of odor. As for some plastics, which have certain odor, injection molding manufacturers need to take certain measures before production.
Post time: Sep-23-2022