This website uses cookies to ensure you have the best experience. Learn more

Effect Of Leaching Treatment On Mechanical Properties Of Natural Rubber Latex (Nrl) Products Filled Modified With Kaolin

1938 words - 8 pages

Introduction
Natural rubber latex or commonly abbreviated as NRL is a liquid milky sap which was tapped from Hevea brasiliensis, trees which were originally from region of South America. It has rubber content of 33% which was suspended in 65% of water and contained 2% of protein. NRL is chemically known as 1,4-cis-polyisoprene. Production of NRL has grown rapidly and its main used was as manufacturing of gloves [1]. In order to improve mechanical properties of these products, several studies had been done using silica, calcium carbonate, montmorillonite (MMT), kaolin as fillers to reinforce vulcanizates [2-5].
Kaolin is one of clay material that is widely used in certain field of applications. It is categorized as minerals with chemical composition Al2Si2O5(OH)4 and has silicate mineral layer with one of tetrahedral sheet joined to one of octahedral sheet via oxygen atom. Kaolinites have high shrink-swell and low cation exchange capacity. They have varieties of chemical composition depend on physical and chemical changes to environment where they were discovered. The main fact of kaolin utilization in industry is due to its surface reactivity and properties which were able to be modified [6]. From previous study done by Yahaya et al, it is observed that kaolin could be treated further by modifying its surface with oil tea seed results in organo modified kaolin [5].
In this study the kaolin is modified by alkanolamide, derived from oleochemicals materials, Refinery Bleach Deodorant Palm Stearin (RBDPS). It is expected that alkanolamide could role as compatibilizer between kaolin and NRL matrix since alkanolamide is usually used as non-ionic surfactants in the household and cosmetic industries [7]. Keamkumay et al in his research used octadecylamine which is primary amine surfactant can modify MMT surface [4]. This shows that materials based surfactant are potential to be used as modifying agent in mineral clays. Meanwhile, the conventional compatibilizer in NRL system is polyvinylpyrrolidone (PVP) which is a common polymer material used as stabilizing agents in aqueous solution. PVP was used to observe and to compare the mechanical properties of vulcanizates with one modified by alkanolamide. Leaching is one method commonly used to improve the mechanical properties of NRL products hence the objective of this study is to observe the effect of leaching treatment on mechanical properties of NRL products filled with kaolin modified alkanolamide and kaolin modified PVP.


Experimental Procedure
Materials
High Ammonia Latex with 60% of total dry content was obtained from local market. Industrial grade of kaolin as fillers with size of 300 mesh; polyvinylpyrrolidone (PVP) as comparing compatibilizer; potassium hydroxide (KOH), sodium hydroxide (NaOH), acetic acid (CH3COOH), calcium nitrate (Ca(NO3)2), toluene (C6H5CH3) and chloroform (CHCl3) were laboratory grade (MERCK) used as supporting chemical substances in this study were purchased from CV....

Find Another Essay On Effect of Leaching Treatment on Mechanical Properties of Natural Rubber Latex (NRL) Products Filled Modified With Kaolin

The Effect of Different Size Rubber Bands on Stretch Rates

664 words - 3 pages together, with the two end paper clips through the holes. This makes an accurate weight basket. 2. Attach a paper clip to the ring stand, tape with 5 cm piece of tape to reinforce paper clip. Put 7.62 cm x 0.31745 cm rubber band on the paper clip. 3. Attach basket to the rubber band on the ring stand. 4. Position the ring stand so it hangs over the table. Attach meter stick to the table, and make sure the meter stick flush with the rubber band, 5. Add

Comparison of the mechanical properties of fresh and cryopreserved aortas

709 words - 3 pages Considering the results, one could conclude that freezing has an affect on the toughness properties of the samples. Although, the quantitative mechanical properties changes by freezing the samples, the qualitative behavior of the samples does not show any obvious changes in the toughness properties, which is a macro-mechanical property.\ This study has a number of limitation that has to be considered. First of all, although the fresh-tissue

Correlations of Soil Properties with Index Properties

2432 words - 10 pages ) research on the geotechnical properties of some post-glacier clays found that the clay containing kaolin minerals at clay contents of 41% and 60% has corresponding liquid limits of 41% and 55% respectively. In their natural occurrence, clayey soils are saturated with the pore spaces between the particles filled with water. The physic-chemistry of the pore fluid also influences the index properties. The results of the study conducted by Abd-el-Aziz

Investigation the effect of paper properties on color reproduction of digital printing

976 words - 4 pages characteristics in printable color gamut and reproducibility. Effect of paper characteristics on color gamut Figure 3 illustrate reproducible color gamut comparison in CIELAB space for six diffrented papers printed via Konica Minolta CF3102. All papers have relatively same gamut shape but different in gamut volumes. Color gamut volumes of different papers calculated from figure 3 are shown in Table 2. The lowest gamut volume related to paper B and C

Microstructural Evolution, Mechanical Properties and Corrosion Behavior of Low Cost Ti-Fe-O-N Alloys

1728 words - 7 pages to study the effect of processing parameters on the microstructural features of Ti-Fe-O-N alloy. This will foster a better understanding of the performance (mechanical properties and corrosion behaviour) of the alloy in service. 2. Aim The aim of this research work is to evaluate the influence of heat treatment processing parameters (homogenizing temperature, degree of deformation, deformation temperature, recrystallization time

The Effect of Natural Disaster on a Society

1335 words - 5 pages these will be examined including casualties caused by a disaster, public health crises and economic depression. Firstly, the most direct and immediate impact of a natural disaster on a society is the loss of human life. In certain types of natural disasters large number of casualties may not occur, nevertheless in the scenario of a far-reaching flood and earthquake, the death toll could be immense. It is estimated that the 1976 Tangshan

Effect of Technology on Natural World - English 100 - Essay 3

1961 words - 8 pages stock, borrow the book, read it, remember to return it, and drive back to library to return it. That is a lot of work. Furthermore, the natural world has been changed through technology as it is changing the way we interact with the environment. The impact of technology on our social, mental, physical, and environmental health can be devastating if we do not keep ourselves in check. There is no denying the benefits we have gained from advancement

Medicinal Marijuana's Effect on the Treatment of Cancer and AIDS

1534 words - 6 pages and vomiting, and even secondary types of cancer. The dosage of these medicines must be measured very carefully to prevent kidney, heart, or respiratory failure.The most common, and often the most devastating side effect for chemotherapy patients is the nausea and vomiting. Vomiting and retching (dry heaves) can last for hours or days after a chemotherapy treatment. Some patients retch so uncontrollably that they can break bones or rupture their

Hybrid Quantum Mechanical/ Molecular Mechanical Simulation of Enzymatic Reaction with the Drude Oscillators Polarizable Force Field

1234 words - 5 pages Hybrid quantum mechanical/molecular mechanical (QM/MM) approach is now considered as an accurate tool for treating properties and mechanism of chemical reactions in condensed phase.1-4 Among those, enzymatic reactions occupy a central place due to their heterogeneous biologic environment difficultly approximable by an implicit representation.5-7 The method allows qualitative interpretation of such processes and quantitative values can be

Living Drugs: application of genetically modified viruses in cancer treatment

1236 words - 5 pages Living Drugs: application of genetically modified viruses in cancer treatmentUnlike any other families of organisms which may be beneficial or even essential to the well-being of each other and the environment, the nature of virus life cycle fated them pathogenic and purely harmful to their hosts. In fact the word "virus" simply means venom (Edward K. Weigner, 1999). But now with a maturing understanding of genetic engineering and recombinant

Mechanical Decapsulation of Microelectronic Packages with the PetroThin

849 words - 3 pages Decapsulation of die packages, made simple! Mechanical Decapsulation of microelectronic packages with the PetroThin, offers numerous advantages.  Metal and ceramic packages that are resistant to chemical attack can easily be prepared  Multiple packages can be decapsulated at the same time  Decapsulate large packages up to 2”x2” in size  Multilayer stacked die are quickly removed The PetroThin allows for a quick, accurate

Similar Essays

Synthesis Of Natural Rubber/Attapulgite Composite Via Combine Latex Compounding And Melt Mixing Using Silylated Method

1865 words - 8 pages silysation process and investigate the effect of different types of surfactant process of attapulgite. 3. Problem statement Attapulgite is a new filler used to increase the mechanical properties of natural rubber (NR) composite. Attalpugite must undergo surface modification in order to have good compatibility and excellent filler-matrix dispersion with NR. There are many surface modification treatment but in this case, silanization treatment is

Mechanical Properties Of Carbon Nanotubes Essay

667 words - 3 pages interaction with materials. In case of CNTs as a filler material, they offer comparatively higher area per unit mass to interact with material and as a result provides better mechanical properties. There have been successful demonstrations that addition of 10% single wall carbon nanotubes increases the strength, hardness and stiffness of the material dramatically. First experimental attempt to measure the Young's modulus Treacy et al made use of

Mechanical Properties Of Ceramics And Glass

2182 words - 9 pages flourished and boomed until the mid-1980’s when some of the manufacturers couldn’t keep up with the upkeep of their business. Manufacturers weren’t up to date with new products, education, and tools in which they suffered a dramatic hit in sales. These manufacturers, in trying to save money and time, tried to bypass the distributors and dealers. This ultimately hurt them in the long run because of the education loss of product knowledge. All of this

Mechanical Properties Of A Meter Rule

6791 words - 27 pages ·          Transverse or bending strength ·          Toughness ·          Hardness Background Knowledge: Study of the mechanical properties of a material is concerned mostly with its behaviour in relation to stresses and strains, and the factors affecting this behaviour. Stress is a distributed force and may be defined as the mutual action: ·          Of one body upon another or