Introduction to Macroporous Adsorption Resin Series

Product Overview & Core Principles

Tianjin Yunkai Macroporous Adsorption Resin is a high-molecular adsorbent featuring a macroporous structure without exchange functional groups. Its primary mechanism relies on Van der Waals forces (physical adsorption) or hydrogen bonding. By utilizing its vast specific surface area and controlled pore size distribution, it selectively adsorbs organic substances from solutions. Because this process does not involve ion exchange, the pH environment remains relatively stable during adsorption and desorption, making it particularly suitable for the separation and purification of complex organic systems.


Core Technical Characteristics

  • Customizable Physical Structure: Through precision synthesis processes, Yunkai can regulate the resin's specific surface area (exceeding 800 $m^2/g$), pore diameter (ranging from microporous to macroporous), and pore volume. This "customization" capability ensures the resin precisely matches the spatial dimensions of target molecules.

  • Stable Physicochemical Properties: These resins possess excellent resistance to acids, alkalis, high temperatures, and organic solvent swelling. With high mechanical strength, they resist fracturing under high-flow industrial rinsing, ensuring a long service life.

  • Wide Range of Polarities: The series covers a full spectrum of varieties from non-polar and weakly polar to medium and strongly polar. By altering the chemical polarity of the resin surface, precise separation of different hydrophilic or hydrophobic substances—such as flavonoids, saponins, and alkaloids—is achieved.

  • High Selectivity and Easy Desorption: Compared to activated carbon, macroporous resins offer higher selectivity for target components, and the adsorption process is reversible. High-efficiency elution can be achieved using alcohol, acetone, or pH adjustment, resulting in high recovery rates and multiple regeneration cycles.


Application Fields

FieldApplication Details
Plant Extraction & TCM RefinementWidely used for the extraction and enrichment of ginkgolides, stevioside, ginsenosides, and anthocyanins, effectively removing impurities and increasing active ingredient purity.
Food ProcessingApplied in juice debittering (e.g., limonin removal), natural pigment purification, and the refinement of sweeteners.
BiomedicinePlays a critical role in the separation and purification of antibiotics, vitamins, and specific biological macromolecules; a foundational material for modern biochemical pharmaceuticals.
Environmental ProtectionTargets organic pollutants in industrial wastewater (such as phenols, benzene series, and pesticide residues) for deep adsorption treatment, achieving discharge standards and resource recovery.