Characteristics of MCM (Modified Clay Mineral)

Phomi's MCM (Modified Clay Mineral) is a functional material obtained by controlling the structure or surface properties of natural econiclay through physical, chemical, or biological means. Its characteristics are significantly better than those of the original clay, mainly reflected in the following aspects:

1. Physical properties of MCM (Modified Clay Mineral)

(1) Enhanced structural stability

Adjustable interlayer spacing: Through organic intercalation or pillar support modification, the interlayer spacing (d ₀₀₁) can be expanded from 1.2 nm (natural montmorillonite) to over 4 nm, forming a stable mesoporous structure.

Improved thermal stability: After calcination modification (such as metakaolin) or inorganic pillar support (such as Al ₁ ∝ pillar support), the temperature resistance can reach 500-800 ℃.

(2) Optimization of pores and specific surface area in econiclay

Porosity increase: After acid activation or composite biochar, the specific surface area increases from 20-80 m ²/g of natural clay to 200-800 m ²/g (such as acid activated bentonite reaching 400 m ²/g).

Hierarchical pore structure: Micro pores (<2 nm), mesopores (2-50 nm), and macropores (>50 nm) coexist synergistically, allowing MCM (Modified Clay Mineral) to adapt to the adsorption of pollutants of different sizes.

(3) Improvement of mechanical performance

Enhancement effect of Phomi's MCM (Modified Clay Mineral): Dispersing nanoclay in the polymer matrix can increase tensile strength by 30% to 50%.

Improvement in compressive strength: MCM (Modified Clay Mineral) mixed with 10% calcined kaolin can increase compressive strength by 15% to 20% after 28 days.

2. Chemical properties of MCM (Modified Clay Mineral) of Phomi holding

(1) Controllable surface chemical properties

Charge characteristics: Through pH regulation or ion exchange, the surface Zeta potential can be adjusted from -40 mV (negative charge) to+20 mV (positive charge), suitable for the adsorption of different charged pollutants.

Functional group introduction: After modification with silane coupling agent, the econiclay molecule is surface grafted with - OH, - NH ₂ and other functional groups to enhance the compatibility of MCM (Modified Clay Mineral) of Phomi with organic compounds.

(2) Enhanced adsorption selectivity

Heavy metal adsorption: Phosphate modified clay has an adsorption capacity of up to 500 mg/g for Pb ² ⁺ (natural clay only has 50 mg/g).

Organic pollutant capture: The adsorption efficiency of quaternary ammonium salt modified bentonite for benzene derivatives is increased by 8-10 times.

3. Functional characteristics of MCM (Modified Clay Mineral)

(1) Environmental responsiveness

PH response: Carboxymethylated clay expands interlayer spacing and releases loaded drugs when pH>7.

Temperature sensitivity: PNIPAM grafted clay shrinks above 32 ℃ to achieve controlled desorption of pollutants.

(2) Multi functional composite

Magnetic recycling: Fe ∝ O ₄ loaded clay can be quickly separated by magnets (recovery rate>95%).

Self repairing ability: Concrete with clay fixed microorganisms can generate CaCO Ⅲ in cracks, achieving self-healing.

(3) Environmental friendliness

Degradability: MCM (Modified Clay Mineral) based materials can naturally degrade without secondary treatment.

Low carbon attribute: The calcined econiclay can replace 20% of cement and reduce CO ₂ emissions by 15%.

4. Key advantages and limitations of MCM (Modified Clay Mineral)

advantage

Efficient and low-cost: Ecociclay has abundant raw materials and simple modification processes (such as acid activation costs<$10/kg).

Multi functional integration: An econiclay material that can simultaneously possess adsorption, catalysis, and structural enhancement functions.

Green and sustainable: Reduce the use of chemical materials such as activated carbon and ion resins.

limit

Long term stability: Organic MCM (Modified Clay Mineral) may fail at extreme pH or high temperature.

Scale challenge: Further optimization is needed for the dispersion and recycling technologies of MCM (Modified Clay Mineral).

MCM（Modified Clay Mineral）， Through microstructure control (interlayer spacing, pores, surface chemistry), adsorption efficiency, functional intelligence, and diversified applications have been achieved, becoming revolutionary materials in fields such as environmental governance and green building. Future research will focus on intelligent response modification (such as light/thermal controlled release) and full lifecycle design (such as the regeneration degradation loop of econiclay).