Aerogel Powder & granule

Overview

Specifications

Main Characteristic Index and Application Field	Type Index	SK	SF
	Specific Surface Area (㎡/g)	≥500	≥600
	Density(kg/m3)	50-100	40-80
	Porosity(%)	90-98	90-98
	Pore Diameter(nm)	25~45	25~45
	Core Capacity(3cm/g)	3.0~6.0	3.0~6.0
	Particle Size (μm)	1000-5000	10-100
	Hydrophobicity	Hydrophobic	Hydrophobic
	Application Field	Functional structure interlayer,filling layer and composite layer for insulation,air clean, water treatment and so on,or composited, bonded with other material for use.

 

Aerogel Characteristics And Applications

	Characteristics	Applications
Thermalogy	The thermal conductivity is the lowest in allsolid materials,light, transparent.	Energy-saving building materials, thermal insulationmaterials, casting mold etc..
Density	Ultra low density(the lowest may reach 3kg/m3)	ICF and X-ray Laser Target
Porosity Ratio	High surface area, multi-component	Catalysts,adsorbent, slow-release formulation, ionexchanger, sensors, etc..
Optics	Low refractive index, transparent, multi-component	Cherenkov counter, waveguides,low refractive indexmaterials and other optical devices, translucent thermalinsulation panels.
Acoustics	Low sound speed	Phonon coupling device, sound insulation materials.
Electics	Low dielectric constant, high dielectricintensity,high surface area.	Dielectric materials in microelectronics industry, electrode, super capacitor.
Mechanism	Flexibility,light.	High-energy absorbent, high-speed dust capture.

 

Comparison of basic properties between Surnano Aeroge's aerogel material and foreign products

Property	Oversea Companies' Value	Surnano Aeroge's Value
Apparent Density(kg/m3)	1~500	40~380
Porosity Ratio(%)	80~99.8	90~98
Mean Pore Diameter(nm)	10~100	25-45
Pore Volume (3cm/g)	1~10	3.0~6.0
Thermal Conductivity w/(m.k)	0.013~0.025	0.013~0.020

Description

This series of products own low density, high specific surface area, high porosity ratio, white powder or granule in appearance. They have low thermal conduction constant, good thermal insulation and preservation property,strong adsorptive ability, environment friendly, innocuity, fireproof, non-corrosive, can be widely applied as functional structure interlayer, filling layer and composite layer for thermal preservation and insulation, air clean,water treatment,etc..

Principle

Principle of Thermal Insulation for Aerogels:

The diameter of pores in aerogels is in nano grade, which is close to or even smaller than the air molecule' s meanfree path (70nm), as a result, the thermal convection vanished which results in a low thermal conductivity.

The high porosity of the material means a large number of pore walls which reflect thermal radiation, therefore, reduce the thermal transport to its limit.

The path of thermal convection in solid is along the pore walls, thus, the long pore walls lower the thermalconduction.

Advantages

Comparison of aerogel nano-materials and traditional thermal insulation materials

1. Superior Thermal Performance

The thermal conductivity of aerogel is only 1/3~1/5 of common insulation,which helps to reduce heat loss and saving space.

2. Fireproof and Waterproof

Nano aerogel can reach the grade A1 noncombustible standard and the hydrophobic rate reaches more than 99%, which can avoid the material losing the thermal insulation efficiency caused by water and subsidence.

3. Long Service Life

Aerogel's three-dimensional structure which is different with other insulations inhibits sintering warpage and particles stack which may occur under hot temperature for a long time, maintains its long service life.

4. Physically Robust

Good flexibility and high tensile strength performance can resist stretching and stress from linear contraction when temperature changes.

5. Environmental Protection and Anticorrosion

Composed of inorganic materials, aerogel contains no hazard; Stripping little chloridion will cause no corrosion to the equipments and pipes.

6. Sound Insulation and Shock Absorption

Sound resistance and shock absorption make better working environment.

7. Easy To Install

Low density (<200kg/m3) and very light make it easy to cut and install.