Shoe press belt
The invention relates to a shoe press belt comprising an elastomer polymer having nanoparticles attached therewith through covalent bonds.
1. A shoe press belt comprising an elastomer polymer having nanoparticles attached therewith through covalent bonds, the covalent bonds being provided by subjecting a reaction mixture containing nanoparticles to ultrasound frequencies.
2. The shoe press belt as claimed in claim 1 , wherein the elastomer polymer is polyurethane.
3. The shoe press belt as claimed in claim 1 , wherein the reaction mixture containing nanoparticles further comprises a polyol.
4. The shoe press belt as claimed in claim 3 , wherein a modified polyol obtained by ultrasound treatment is suitable for producing polyurethane.
5. The shoe press belt as claimed in claim 3 , wherein a modified polyol obtained by ultrasound treatment, together with a chain extender, is suitable for producing polyurethane.
6. The shoe press belt as claimed in claim 1 , wherein the reaction mixture containing nanoparticles comprises a multifunctional alcohol or amine suitable as a chain extender in a polyurethane reaction.
7. The shoe press belt as claimed in claim 6 , wherein a modified chain extender obtained by ultrasound treatment is suitable for producing polyurethane.
8. The shoe press belt as claimed in claim 1 , wherein a nanoparticle is 1 to 100 nm in size.
9. The shoe press belt as claimed in claim 8 , wherein the nanoparticle is a nano carbon tube.
10. The shoe press belt as claimed in claim 1 , wherein the amount of nanoparticles in the elastomer polymer is about 0.1 to 10% by weight.