Sustainable natural rubber (NR) foams were prepared by replacing petroleum-based carbon black (CB) with recycled silica (SiO2) nanoparticles. The total nanofillers concentration was fixed at 40 phr, while the CB/silica ratio changed from 40/0 to 0/40. results showed that increasing content increased curing characteristics, such as delta torque (∆M) 54%, scorch time (ts) 50% and optimum (t90) 65...

The temperatures of standard glassware and ceramics are nearly impossible to tell just by sight. Therefore, burns from touching heated surfaces are common in the laboratory and in the kitchen. The sol-gel process is a safe method to create foam under ambient conditions. Adding different chemical compounds causes the foam to have varying physical and chemical characteristics. This project focuse...

The mesoporous metal-organic frameworks are a family of materials that have pore sizes ranging from 2 to 50 nm, which have shown promising applications in catalysis, adsorption, chemical sensing and so on. The preparation of mesoporous metal-organic frameworks usually needs the supramolecular or cooperative template strategy. Here we report the template-free assembly of mesoporous metal-organic...

Polyurethane composite foams were prepared by adding three different types of silica materials as a filler to improve the mechanical and thermal insulation properties. The first type consists aerogels with high-volume pores, expectation improving PU because aerogel itself has superior Silica nanoparticle is used for second that size very similar pore comparison. last produce polyurethane foam u...

This thesis is part of the ANR project PNano NANOBONEFILLER. The aim of this project is the development of a new injectable bone filling system based on mesoporous calcium phosphates associated with growth factors. The thesis is composed of two main parts: the synthesis of mesoporous calcium phosphates by hard templating techniques and the adsorption and release of growth factors on these porou...

Effect of additives on the pore structure of polymer foams obtained from Pickering HIPE templates Various routes were investigated to create pore throats in closed-celled poly-Pickering-HIPEs; we tried to dissolve the silica particles used as emulsifiers out of the thin films separating individual pores by adding NaOH into the aqueous phase, which resulted indeed in the formation of interconnec...

Mesoporous polymers with tunable large mesopores and thin mesopore walls were synthesized through a CO2-swollen micelle templating route. The mesopore size and porosity properties of the polymers can be easily modulated by adjusting CO2 pressure. The as-synthesized mesocellular polymers are excellent candidate supports for preparing heterogeneous catalysts.