Synthesis of Titanium Dioxide Nanoparticles in Natural Rubber Latex Medium

The feasibility of synthesizing TiO2 nanoparticles using tetramethylammonium hydroxide (TMAOH) stabilized titanium tetraisopropoxide (TTIP) in natural rubber latex medium was investigated. The TiO2 nanoparticles were separated using centrifugation and were characterized using SEM, TEM and XRD. It was found that the weight fraction of latex loaded in the reaction vessel affects the shape and size of the TiO2 particles

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Mechanical and Morphological Properties of Films Based on Ultrasound Treated Titanium Dioxide Dispersion/Natural Rubber Latex

International Journal of Composite Materials ◽

10.5923/j.cmaterials.20110101.02 ◽

2012 ◽

Vol 1 (1) ◽

pp. 7-13 ◽

Cited By ~ 3

Author(s):

Stephen Shaibu Ochigbo ◽

Adriaan Stephanus Luyt

Keyword(s):

Titanium Dioxide ◽

Natural Rubber ◽

Natural Rubber Latex ◽

Morphological Properties ◽

Rubber Latex

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Preparation and Characterization of Low-Molecular-Weight Natural Rubber Latex via Photodegradation Catalyzed by Nano TiO2

Polymers ◽

10.3390/polym10111216 ◽

2018 ◽

Vol 10 (11) ◽

pp. 1216 ◽

Cited By ~ 1

Author(s):

Suhawati Ibrahim ◽

Nadras Othman ◽

Srimala Sreekantan ◽

Kim Tan ◽

Zairossani Mohd Nor ◽

...

Keyword(s):

Molecular Weight ◽

Titanium Dioxide ◽

Natural Rubber ◽

Chemical Structure ◽

Sol Gel ◽

Natural Rubber Latex ◽

Low Molecular Weight ◽

Rubber Latex ◽

Liquid Natural Rubber ◽

New Applications

Natural rubber is one of the most important renewable biopolymers used in many applications due to its special properties that cannot be easily mimicked by synthetic polymers. To sustain the existence of natural rubber in industries, modifications have been made to its chemical structure from time to time in order to obtain new properties and to enable it to be employed in new applications. The chemical structure of natural rubber can be modified by exposure to ultraviolet light to reduce its molecular weight. Under controlled conditions, the natural rubber chains will be broken by photodegradation to yield low-molecular-weight natural rubber. The aim of this work was to obtain what is known as liquid natural rubber via photodegradation, with titanium dioxide nanocrystals as the catalyst. Titanium dioxide, which was firstly synthesized using the sol–gel method, was confirmed to be in the form of an anatase, with a size of about 10 nm. In this work, the photodegradation was carried out in latex state and yielded low-molecular-weight natural rubber latex of less than 10,000 g/mol. The presence of hydroxyl and carbonyl groups on the liquid natural rubber (LNR) chains was observed, resulting from the breaking of the chains. Scanning electron microscopy of the NR latex particles showed that titanium dioxide nanocrystals were embedded on the latex surface, but then detached during the degradation reaction.

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