Dispersion Methods

Precision techniques for integrating graphene into concrete mixtures

Physical Method

Ultrasonic Dispersion

Using high-frequency sound waves to break down graphene agglomerates

Advantages:

  • High exfoliation efficiency
  • Uniform distribution
  • Process scalability

Process Parameters:

Frequency:20-40 kHz
Processing Time:15-60 min
Power:100-500 W
Chemical Method

Chemical Functionalization

Surface modification of graphene to improve compatibility with cement matrix

Advantages:

  • Enhanced adhesion
  • Stable suspensions
  • Increased reactivity

Process Parameters:

Reagents:Silanes, carboxyls
Reaction Time:2-24 hours
Temperature:25-80°C
Mechanical Method

Mechanical Mixing

High-speed stirring to disperse graphene in liquid medium

Advantages:

  • Simple implementation
  • Low cost
  • Suitable for large volumes

Process Parameters:

Speed:1000-5000 rpm
Time:10-30 min
Type:Planetary mixer
Chemical-Physical Method

Superplasticizer Use

Application of special additives to stabilize graphene dispersion

Advantages:

  • Long-term stability
  • Improved flowability
  • Synergistic effect

Process Parameters:

Additive Type:Polycarboxylates
Dosage:0.5-2% by mass
pH Level:10-12

Process Stages

1

Suspension Preparation

Mixing graphene with water and dispersing agents

2

Dispersion

Breaking down agglomerates using selected method

3

Stabilization

Adding stabilizers to prevent aggregation

4

Integration into Mixture

Introducing dispersion into cement or concrete mix

Our Approach to Dispersion

We use a combined approach, integrating ultrasonic dispersion with chemical functionalization to achieve optimal graphene distribution in the concrete matrix.

Quality Control

Continuous monitoring of particle size and suspension stability

Optimization

Parameter selection for each type of construction mixture

Scalability

Process adaptation for industrial production