Peg-12 Dimethicone Supplier introduces the principle of use of release agent:
1. The polar chemical bond interacts with the mold surface to form a regenerative adsorption film.
2. The silicon-oxygen bond in polysiloxane can be regarded as a weak dipole (Si+-O-). When the release agent is spread on the mold surface in a single orientation arrangement, the molecule adopts a unique extended chain configuration.
3. The free surface is covered by alkyl groups in a densely packed manner, and the demolding ability increases with the density of the alkyl group; but when the alkyl group occupies a large steric hindrance, the stretching configuration is limited, and the demolding ability will be reduced.
4. The molecular weight and viscosity of the release agent are also related to the release ability. The molecular weight is small and the spreadability is good, but the heat resistance is poor.