Synthetic Aerogels – Tailored solutions for high-end applications – Fact Sheet

One strand of NanoHybrids focused on synthetic aerogels and aimed at

  • optimizing existing polyurethane (PUR) aerogels;
  • explore the mechanical strength of synthetic polymer aerogels based on polyurea (PUA) and polyamide (PA) for ambient or sub-critical drying; and
  • exploring new types of super-strong gels and aerogels from ring opening metathesis polymerization (ROMP) of dicyclopentadiene (DCPD) and norbornene (NBE) derivatives

to enhance the availability of tailored solutions for high-end applications. Two of the materials are presented here

Polyurea aerogel beads

Uniform, mm-sized spherical polyurea aerogel beads available for the first time
– Room temperature process
– Scale-up possible via the dripping method
– Controlled polydispersity possible
– Properties determined by the nanostructure

Properties and advantages

2-4 mm in diameter, narrow size distributions (full width – at half maximum: 0.3-0.4 mm)
– Low density (0.16 g/cc)
– High porosity (>87% v/v)
– High surface area (200 m2/g)

Application potential

Thermal insulation
Gas adsorption
Environmental remediation
Precursors for carbon aerogels

Hybrid polyurea/alginate aerogel beads

Uniform, mm-sized spherical hybrid polyurea/alginate aerogel beads available for the first time
– Scale-up possible via Jet-Cutting
– High doping with a wide variety of metal ions
– Pyrolytic conversion to metal-doped carbon aerogels

Properties and advantages

Hydrophobic hybrid polyurea/alginate aerogels from hydrophilic native materials
Mechanical properties greatly enhanced:
– Young‘s modulus increases more than 16 times
– Hybrid monolithic polyurea/alginate aerogels tolerate stresses >600 MPa and strains >90%

Application potential

Thermal insulation
Gas adsorption
Drug delivery
Heterogeneous catalysis

Download the fact sheet here
NANOHY-Synthetic_Aerogels_Fact Sheet

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