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Expandable Graphite

As low as $100.00 $0.00
In stock
SKU# 148

Product Detail

The CAS No.: 7782-42-5

Expandable graphite from ACS Material is a specially synthesized intercalation compound of graphite. Graphite’s flaky, layered structure makes it possible to introduce outside atoms or small molecules between the graphite layers. This process is called intercalation and the result is an expandable graphite salt or a graphite intercalation compound (GIC.) The material gets its name because, when exposed to heat, the intercalated graphite layers expand and separate like an accordion. The final expanded volume can be hundreds of times greater than the initial volume of the material. The intercalation agent and the proportion of intercalated layers determine the temperature at which expansion begins and the rate at which expansion occurs.

Expansion of the flake graphite decreases the material’s overall bulk density while increasing its surface area; this change yields a material that demonstrates increased chemical reactivity over the original material. Expandable graphite is valued as a flame retardant. Expansion creates an intumescent layer on the surface of the graphite flake that slows the spread of fire and minimizes the creation of toxic fumes and gases.

Expandable graphite is also a component in a number of additional applications, including:

  • Batteries
  • Coatings
  • Plastic foils
  • Rubber products
  • Heating and cooling systems
  • Energy storage systems
  • Sealing systems
  • And many others
 

 

New Products List 

SKU

Particle Size
(um)

Purity (%)

Expansion Start Temperature

(EST‚ °C)

Expansion Volume

(EV‚ ml/g)

Highlights and Application

CXG22022

80%<75um

≥92%

190℃±10℃

≥20 ml/g

Application: Coatings, Paints, Adhesive, and Textile, which requires finer particle size.

CXG21122

80%<150 um

≥94%

180℃±10℃

≥35 ml/g

Application: Coatings, Paints, Adhesive, and Textile, which requires finer particle size, in case CXG22022 cannot satisfy the flame retardance requirements.

CXG21222

80%<150 um

≥94%

180℃±10℃

≥95 ml/g

Application: Coatings, Paints, Adhesive, and Textile, which requires finer particle size, in case CXG21122 cannot satisfy the flame retardance requirements.

CXG52322

80%>150 um

≥95.0%

180℃±10℃

≥200 ml/g

Application: Spray foams, which require fine particle size.

CXG8B122

80%>180 um

≥95.0%

180℃±10℃

≥230 ml/g

Standard product with fine particle size. Application in PU foam, EPS foam, Sealing Strip, etc.

CXG5B122

80%>300 um

≥95.0%

180℃±10℃

≥250 ml/g

Standard product for all main applications, like PU foam, Coating, Rubber, Adhesive, Construction Materials, etc.

CXG5B022

80%>300 um

≥99.0%

180℃±10℃

≥250 ml/g

Same expansion, but higher purity than CXG5B122

CXG5C022

80%>300 um

≥98.0%

170℃±10℃

≥350 ml/g

High purity, very high free expansion and expansion strength. Application: for all main applications which requires better flame-retardant effects than CXG5B122.

 

SKU

Mesh

Purity

(%)

Expansion Start Temperature 

(EST,°C)

Expansion Volume 

(EV, ml/g)

Highlights and Application
*CXGAA222

150

≥92% 175℃ ≥150 ml/g Mainly used in fabric coatings, fire-resistant adhesives and EPS and XPS flame retardants
*CXG00522

80

≥95% 250℃ ≥180 ml/g

With application where extruder used

*CXG00622

50

≥95% 300℃ ≥170 ml/g Highest Expansion Start Temperature

*These three products will be discontinued after sold out.  

Please also take a look at our Lower Temperature Expandable Graphite.

Products No.

Expansion

Start

Temperature

(EST‚ °C)

pH   Mesh  

Packing Density

(mg/cm3)

 Expansion Volume
(EV‚ ml/g)
 Property

EG-110-230

(Discontinued)

110 7.0 80 0.6 230

Super-low Expansion 

Start Temperature

EG-150-230
(Discontinued)

 150 7.0  80 0.6 230  

 

Research Citations of ACS Material Products