Ppe Epoxy Polyester Wet Strength Agent

PPE Epoxy Polyester Wet Strength Agent also named Polyamine Polyamide Epichlorohydrin resin, is a water-soluble cationic thermosetting resin solution. This product is a non-formaldehyde-based polymer and can be used in a wide pH range and is suitable for papermaking in neutral or alkaline conditions.
Because of the attraction between the positive charge of the PPE resin and the negatively charge in the fiber and because of large amounts of resin absorbed to the surface of the fiber ,due to the hydrogen bonding interactions between the hydroxyl on the wet strength agent and hydroxyl in the fiber in the meanwhile, the resin absorbed by the paper fiber takes effect at the dryer surface temperature when the paper sheet is being dried and cross-links into mesh structure which protects the paper from water damage,thereby reducing the swelling of the fiber because of water absorption, protecting the hydrogen bonding between the fibers and endowing the paper with excellent wet strength as well as improving its dry strength at the same time.PPE wet strength agent,also named Polyamine Polyamide Epichlorohydrin resin, is a water-soluble cationic thermosetting resin solution.