Low-viscosity polyvinyl butyral resin as well as preparation method and application thereof

摘要: The invention relates to a preparation method of low-viscosity polyvinyl butyral resin, and the comprises following steps of: regulating temperature alcohol water solution 0-5 DEG C by adopting two-step precipitation method; then adding an acid catalyst butyl aldehyde for acetalation reaction obtain resin. disclosed can PVB (Polyvinyl Butyral) resin with higher acetalization degree through formula process control enhances adhesive force; achieve butyraldehyde group more than 80% be used ink, coating adhesives.