The most commonly used mixed solvents for ethyl cellulose (DS: 2.3~2.6) are aromatic hydrocarbons and alcohols. Aromatics can be used benzene, toluene, ethylbenzene, xylene, etc., the dosage is 60~80%; alcohol can be methanol, ethanol, etc., the dosage is 20~40%. The EC was slowly added to the container containing the solvent under stirring until it was completely wetted and dissolved.
Main uses of ethyl cellulose products:
1. Industrial industry: EC is widely used in various coatings, such as metal surface coatings, paper product coatings, rubber coatings, hot melt coatings and integrated circuits; used in inks, such as magnetic inks, gravure and flexographic inks; used as Cold-resistant materials; used for special plastics and special precipitations, such as rocket propellant coating tapes; used in insulating materials and cable coatings; used in polymer suspension polymerization dispersants; used in cemented carbide and ceramic adhesives; used in Textile industry for printing color paste and so on.
2. Pharmaceutical industry: Because EC is insoluble in water, it is mainly used for tablet adhesives and film coating materials, etc.; it is also used as a matrix material blocker to prepare various types of matrix sustained-release tablets; it is used for mixed materials Preparation of coated sustained-release formulations, sustained-release pellets; also used as binders, sustained-release agents and moisture-proofing agents for vitamin tablets and mineral tablets.
Post time: Nov-01-2022