Polymer composite with micro- and nanocellulose for artwork protection and restoration

• Micro- and nanocomposites were prepared using Aquazol® 500 as a polymeric matrix and a microcrystalline cellulose (MCC), and suspensions of cellulose nanocrystals (CNC), as reinforcing agents. After a preliminary thermo-mechanical characterization that highlighted a stabilizing effect due to the micro- and nanofiller introduction, with an increase of the elastic modulus and a decrease of the thermal expansion coefficient and the creep compliance [1], these materials were applied as canvas lining adhesives. Single-lap shear tests both in quasi-static and creep conditions confirmed the dimensional stability provided by cellulose micro- and nanoparticles, with an important reduction of the adhesives compliance proportional to the filler content. Interestingly, MCC and CNC introduction did not impair the fracture behavior of the neat matrix.

Ämnesord

TEKNIK OCH TEKNOLOGIER  -- Kemiteknik -- Polymerteknologi (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Chemical Engineering -- Polymer Technologies (hsv//eng)

Nyckelord

Cellulose

Composites

Mechanical properties

Restoration

Adhesives

Characterization

Composite materials

Creep

Fillers

Fracture mechanics

Image reconstruction

Polymers

Thermal expansion

Cellulose nanocrystal (CNC)

Micro- and nanocomposites

Microcrystalline cellulose

Protection and restoration

Single-lap shear tests

Stabilizing effects

Thermal expansion coefficients

Thermo-mechanical characterization

Polymer matrix composites

Publikations- och innehållstyp

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