1results about How to "Guaranteed water blocking effect" patented technology

This invention discloses a PHA water-based water-blocking coated pulp molded seedling pot containing inorganic fillers and blended polymers, and its preparation method, belonging to the technical fields of seedling containers, pulp molding, and water-based water-blocking coatings. This invention uses polyhydroxyalkanoates combined with sheet-like inorganic fillers to construct a dense water-based barrier layer and innovatively designs a sidewall drainage channel connecting to the bottom. Through a differentiated coating structure, this invention breaks the deadlock between moisture softening during the seedling stage and limited root penetration after transplanting, achieving a precise balance between excellent wet strength and free root growth. This solution eliminates fluorine-containing additives, ensuring the product's biodegradability throughout its entire life cycle.