.
Nano clay and it’s
applications
By:
Thikra Kadhim Ibrahim
Clay
Clay is a naturally occurring material composed
primarily of fine grained minerals, which shows
plasticity through a ...
GENERAL STRUCTURE OF CLAY
Figure -1- (a) Silica tetrahedron
Figure- 1- (b) Alumina octahedral
Figure -2- General structure of clay mineral
mineral
CLASSIFICATION OF CLAY
(b) 2:1 clay structure
Figure -3- (a) 1:1 clay structure
There are four main groups of clays :
1- Kaolinite.
2-Montmottilonite-smectitie:the essential nanoclay
raw material , a 2 ...
Nano-clay
Nano clays are minerals which have a high aspect ratio
and with at least one dimension of the particle in the
na...
Figure 4. Crystal lattice structure of
montmorillonite nanoclay.
The nanoclay used is a surface
modified montmorillonite m...
Nano-clay clay
PREPARATION OF NANOCLAY
Figure . Schematic process diagram of nanoclay preparation
APPLICATION OF NANOCLAY
1.Nanoclay is used in the ink formulation: It helps to
adjust the consistency of printing inks to ...
3.The performance of cosmetics is enhanced
by the use of nanoclays and they allow good
colour retention and coverage for n...
4.Waste water treatment:
.
The use of nanoclays in wastewater treatment has become
common in industry today. Nanoclays exh...
5.Nanoclay as drug vehicle:: nanoclays as drug
vehicle for controlled release of drug is one
of the born age area in medic...
Nano clay and its applications
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Nano clay and its applications

Nano clay and its applications
Published on: Mar 3, 2016
Published in: Engineering      
Source: www.slideshare.net


Transcripts - Nano clay and its applications

  • 1. . Nano clay and it’s applications By: Thikra Kadhim Ibrahim
  • 2. Clay Clay is a naturally occurring material composed primarily of fine grained minerals, which shows plasticity through a variable range of water content and which can be hardened when dried or fired. Clay deposits are mostly composed of clay minerals (phyllosilicate minerals) and variable amount of water trapped in the mineral. Clay materials have been investigated because of their importance in agriculture, in ceramics, in construction and other uses.
  • 3. GENERAL STRUCTURE OF CLAY Figure -1- (a) Silica tetrahedron Figure- 1- (b) Alumina octahedral
  • 4. Figure -2- General structure of clay mineral mineral
  • 5. CLASSIFICATION OF CLAY (b) 2:1 clay structure Figure -3- (a) 1:1 clay structure
  • 6. There are four main groups of clays : 1- Kaolinite. 2-Montmottilonite-smectitie:the essential nanoclay raw material , a 2 to 1 layered smectite clay mineral with a platey structure. 3-Illite. 4- Chlorite. GROUPS OF CLAYS
  • 7. Nano-clay Nano clays are minerals which have a high aspect ratio and with at least one dimension of the particle in the nanometer range. The purity and cation exchange capacity of the nano-clay are also critical characteristics. The purity is important in achieving maximum increases in mechanical properties and achieving optimum clarity for use in films. Impurities act as stress concentrators, resulting in poor impact and tensile properties. The cation exchange capacity provides the surface activity necessary for acceptance of modifiers or surface treatments.
  • 8. Figure 4. Crystal lattice structure of montmorillonite nanoclay. The nanoclay used is a surface modified montmorillonite mineral. The general formula for class of montmorillonite is (Na,Ca)0.33(Al2y,Mgy)Si4O10(OH)2 ·nH2O. Figure 4 shows the crystal lattice structure of montmorillonite nanoclay:
  • 9. Nano-clay clay
  • 10. PREPARATION OF NANOCLAY Figure . Schematic process diagram of nanoclay preparation
  • 11. APPLICATION OF NANOCLAY 1.Nanoclay is used in the ink formulation: It helps to adjust the consistency of printing inks to the desired value, avoiding pigment sedimentation, providing good colour distribution, obtaining desired film thickness, etc. by incorporation of small amount of organically modified layered silicate. 2.Thickening lubricating oils with nanoclays can produce especially high temperature resistant lubricating greases.
  • 12. 3.The performance of cosmetics is enhanced by the use of nanoclays and they allow good colour retention and coverage for nail lacquers, lipsticks and eye shadows. Fields of application (paints, inks, greases and cosmetics).
  • 13. 4.Waste water treatment: . The use of nanoclays in wastewater treatment has become common in industry today. Nanoclays exhibit a synergistic effect with many commonly utilized water treatment unit processes including granular-activated charcoal, reverse osmosis, and air strippers. Granular-activated carbon is particularly effective at removing a large range of organic molecules from water, however, is very poor for removing large molecules such as humic acid and wastewaters containing emulsified oil and grease. Nanoclays have proven to be the technology of choice for treating oily wastewaters.
  • 14. 5.Nanoclay as drug vehicle:: nanoclays as drug vehicle for controlled release of drug is one of the born age area in medicinal application, nanoclays have great potential as compared to polymer and carbon nanotubes for drug delivery applications.

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