The application discloses a PHA water-based
coating paper pulp molding
seedling raising container with functions of air preservation, root guidance and disintegration promotion, and a preparation method and application thereof, and belongs to the technical field of green
agriculture and biomaterials. The application innovatively constructs an air preservation, root guidance and disintegration promotion synergistic zone, and solves the pain point that traditional paper-based containers are difficult to
balance water resistance and air permeability by using differential
coating technology. Compared with the traditional scheme which needs to greatly increase the
coating thickness to maintain the
wet strength, the application realizes better wet stability and root zone air permeability by synergistic effect of structure and material with only a very low coating amount, and gives the container the functions of intelligent root guidance penetration and directional
cracking after
transplanting. The product supports pot-free planting and significantly reduces the comprehensive
seedling raising cost, and is in line with the future development direction of full
biodegradation.