1、Journal of Applied Polymer Science

Corn stover (CS), humic acid (HA), acrylic acid (AA), and acrylamide (AM) were used as raw materials to produce CS–HA-based superabsorbent resin (p-CS-HA-PAA) by plasma modification, and the optimum modification conditions were obtained.

2、The Role of Humic Acid

In this study, a novel multifunctional superabsorbent of polyacrylic acid/humic acid/semicoke (PAA/HA/SC) with high water retention and favorable slow release performance was developed by incorporation of humic acid (HA) and oil shale semicoke (SC) via a simple free radical polymerization.

3、Study on plasma‐modified corn stover‐humic acid‐based superabsorbent resin

Corn stover (CS), humic acid (HA), acrylic acid (AA), and acrylamide (AM) were used as raw materials to produce CS–HA‐based superabsorbent resin (p‐CS‐HA‐PAA) by plasma modification, and...

4、Preparation, swelling behaviors and fertilizer

A sodium humated (SH) modified superabsorbent resin (SAR), which had good water absorbency and slow-release fertilizer properties has been successfully prepared by inverse suspension polymerization.

5、Progress in Humic Acid Super

A superabsorbent resin (HA-PAA) was prepared by reversed-phase suspension polymerization.The structure and combination mechanism of superabsorbent resin were described.The application fields of superabsorbent resin were described.Humic acid resins prepared by different methods show good adsorption,water absorbing,filtrate reducing,heat ...

Characterization and Application of Cellulose

In this study, a mixed leaf cellulose-humic acid- based superabsorbent hydrogel (p-LC-HA-PAA) was synthesized through a water-solution polymerization method. Cellulose and humic acid served as the struc- tural framework, while potassium persulfate (KPS) as an initiator and N,N'-methylenebisacrylamide (MBA) as a cross-linking agent.

Preparation of humic acid

With humic acid (HA) extracted from weathered coal and acrylic acid (AA) as raw materials, HA-acrylic acid superabsorbent resin (HA-PAA) was prepared by ultrasonic-assisted aqueous solution polymerization, and the most absorbent resin was determined by orthogonal experiment.

Current Research and Future Development of Superabsorbent

In recent years,superabsorbent with humic acid have been applied practically in agricultural and horticultural fields because of its advantages of water retention capacity and fertilizer function.Humic acid,consisted of various functional groups,is a low-cost,multifunctional fertilizer,which can regulate plant growth,accelerate roots ...

Study on plasma‐modified corn stover‐humic acid‐based superabsorbent resin

Corn stover (CS), humic acid (HA), acrylic acid (AA), and acrylamide (AM) were used as raw materials to produce CS–HA‐based superabsorbent resin (p‐CS‐HA‐PAA) by plasma modification, and the optimum modification conditions were obtained.

Study on plasma

Corn stover (CS), humic acid (HA), acrylic acid (AA), and acrylamide (AM) were used as raw materials to produce CS–HA-based superabsorbent resin (p-CS-HA-PAA) by plasma modification, and the optimum modification conditions were obtained.

In the rapid development of modern industry and agriculture, the urgent demand for environmentally friendly materials has led to the emergence of a novel material: humic acid-modified superabsorbent resin. With its unique properties and eco-friendly characteristics, this material has demonstrated broad application prospects across multiple fields. This article provides an in-depth exploration of the concept, preparation methods, performance features, and practical applications of humic acid-modified superabsorbent resin, aiming to offer readers a comprehensive understanding.

I. Overview of Humic Acid-Modified Superabsorbent Resin

Humic acid, derived from the microbial decomposition of plant and animal residues, is an organic matter rich in functional groups such as carboxyl and phenolic hydroxyl groups. These groups endow humic acid with excellent adsorption properties. In recent years, researchers have discovered that introducing humic acid into superabsorbent resins via chemical or physical methods can significantly enhance the water absorption, mechanical strength, and durability of the resin while retaining its environmental benefits.

II. Preparation Methods

The preparation methods for humic acid-modified superabsorbent resin are diverse, including:

1. Blending Method:

   • A base superabsorbent resin is first prepared and then mixed with a humic acid solution to form a composite. This method is simple but may affect the resin’s microstructure and performance.

2. Co-precipitation Method:

   • During resin synthesis, reaction conditions are controlled to uniformly disperse humic acid within the resin particles, forming a composite. This approach improves water absorption and mechanical strength.

3. Interfacial Polymerization Method:

   • High-molecule monomers interact with humic acid through interfacial polymerization, precisely controlling the resin’s microstructure to achieve high-performance composites.

III. Performance Characteristics

Humic acid-modified superabsorbent resin offers the following advantages:

1. Excellent Water Absorption:

   • The addition of humic acid significantly boosts water absorption rate and capacity, critical for applications requiring rapid moisture uptake.

2. Enhanced Mechanical Strength:

   • Humic acid improves tensile and compressive strength, making the resin suitable for engineering structures.

3. Durability:

   • The resin maintains stable performance over long-term use, resisting aging and extending service life.

4. Eco-friendly Nature:

   • As a natural substance, humic acid reduces environmental pollution during production, aligning with green building standards.

IV. Practical Applications

Humic acid-modified superabsorbent resin has been applied in various fields:

1. Agricultural Irrigation:

   • Improves water utilization efficiency in farming systems, reducing resource waste.

2. Landscape Gardening:

   • Used as a soil moisturizing agent in urban green spaces and parks to promote plant growth.

3. Water Treatment:

   • Removes heavy metals and organic pollutants from water, enabling purification.

4. Construction Engineering:

   • Employed as a waterproof material and adhesive to enhance building material stability and durability.

V. Future Prospects

With technological advancements and stricter environmental standards, research and application of humic acid-modified superabsorbent resin will continue to evolve. Key directions include:

1. Performance Enhancement:

   • Refining preparation techniques to further improve water absorption, strength, and durability.

2. Expanded Applications:

   • Exploring new fields such as marine protection and energy recovery.

3. Optimized Formulations:

   • Developing more eco-friendly formulas to reduce costs without compromising performance.

humic acid-modified superabsorbent resin, with its proven preparation methods and performance advantages, holds immense potential. As technology advances, this material is poised to play a larger role in society, delivering greater value.