**Acknowledgements**

the fibrous substrate, as the temperature rises to 310°C, According to the FTIR spectra, a very much lower amount of carbonyl groups is found in the linen - ZnO nanocomposite specimens.

Meanwhile, MCT having a higher thermal conductivity as well as a greater heat capacity value absorbs the heat transmitted from the surroundings and retard the direct thermal impact to the polymer backbone [45,46]. As a consequence, zinc oxide stabilizes the polymer molecules of the underneath substrates and delays the occurrence of major cracking up to 400°C (Fig. 15).

The masking effect of an exothermal reaction on the endothermic cellulose decomposition was clearly highlighted by the behavior of the reference fibrous linen (non-functionalized) subjected to the thermal treatment in N2; it shows an exothermal peak at 260°C with a decreased enthalpy after the thermal treatment; the exothermal effect is attributable to β-cellulose decomposition as observed in a curve of a cotton sample. Surprisingly, even within the second

The review has been focused on a series of MCT-β-CD grafted linen fibrous support (yarn) in whose matrices zinc oxide nanoparticles have been introduced with the assistance of two different surfactants. The coating particles fell off easily for the ZnO powder hydrothermally synthesized without any surfactant assistance after washing, which might have been caused by the weak attaching force (coordinated bond between ZnO and linen) induced by the

Wetting characteristics are influenced by the type of surfactant used during the hydrothermal synthesis. It is in direct implication onto the relationship between the morphological, structural and chemical attributes and water vapor sorption-desorption behavior. Hydrophilicity of these fibrous composites has increased and based on the sorption/desorption isotherms registered by DSV, BET surface area, as well as XRD measurements were estimated, and assimilated these fibrous composites, set by IUPAC, with mesoporous materials. Humidity loss and drying speed of water from these studied samples depend of the type of surfactant.) A quantification of samples, in terms of their thermal stability has been surveyed, as well. Thus, this paper review intends to develop an innovative and more appropriate synthetic procedure and characterization of nanoscale ZnO coated fibrous composites under favourable conditions, by using the synergic effect of MCT and CTAB/P123 as surfactants. Prominent assessed

**•** thermal stability and degradation mechanism of ZnO nanocoated linen fibrous samples;

**•** Cumulative barrier attributes conferred by the new components that interfered in the

These new features are believed to be the promising new lines of exploration of nanoscale ZnO

cycle of thermal treatment, the sample exhibits a similar exothermal peak at 363°C.

**4. Summary and outlook**

40 Modern Surface Engineering Treatments

deteriorated crystallinity.

attributes were emphasized:

preparation technique: CTAB/P123 and MCT

coated fibrous composites in textile area.

The authors would like to greatly acknowledge the financial support provided by the two research contracts: /89/1.5/S/49944 POSDRU Project and PN-II-RU-TE-2011-3-0038 project, belonging to "Al.I.Cuza" University of Iasi.
