ROKAnol® L30A/65 is a product used as an emulsifier in the emulsion polymerization process. It is a mixture of non-ionic surfactants in which ROKAnol® L30A is predominant. Unlike ROKAnol® L30A, the product has a viscous liquid form, which significantly facilitates its dosage during the reaction.
During the synthesis stage, ROKAnol® L30A/65 emulsifies the monomer and stabilizes the particles of the resulting polymer, preventing coagulation of the dispersion. The high reaction efficiency of the agent is achieved in combination with a suitable anionic surfactant such as ROSULfan L15 or SULFOROKAnol L225/1. The combination with anionic agents enables perfect control over the size of the dispersion particles.
Once polymerized, ROKAnol® L30A/65 has excellent dispersion stabilizing properties. High content of ethylene oxide (30 mole EO) in the product provides significant resistance to electrolytes and improves dispersion resistance to repeated freezing and thawing.
ROKAnol® L30A/65 is used in the production of most polymer-acrylic, styrene-acrylic, vinyl acetate homo- and copolymers (including VAE dispersions). The recommended concentration of the product is 0.5%-3% by weight for the total formulation.