Surface Morphology of Prevulcanized Natural Rubber Latex Films by Atomic Force Microscopy:  New Insight into the Prevulcanization Mechanism

Langmuir ◽  
1999 ◽  
Vol 15 (19) ◽  
pp. 6208-6219 ◽  
Author(s):  
C. C. Ho ◽  
M. C. Khew
Keyword(s):  
Atomic Force Microscopy ◽  
Surface Morphology ◽  
Natural Rubber ◽  
Natural Rubber Latex ◽  
Latex Films ◽  
Rubber Latex ◽  
Force Microscopy ◽  
Atomic Force ◽  
Insight Into

Unravelling the nanometre-scale stimuli-responsive properties of natural rubber latex particles using atomic force microscopy

Soft Matter ◽  
2012 ◽  
Vol 8 (9) ◽  
pp. 2724 ◽  
Author(s):  
Fabien Gaboriaud ◽  
Benoit de Gaudemaris ◽  
Thomas Rousseau ◽  
Sylvie Derclaye ◽  
Yves F. Dufrêne
Keyword(s):  
Atomic Force Microscopy ◽  
Natural Rubber ◽  
Natural Rubber Latex ◽  
Stimuli Responsive ◽  
Rubber Latex ◽  
Latex Particles ◽  
Force Microscopy ◽  
Atomic Force

scholarly journals Reinforcement of Natural Rubber Latex Using Jute Carboxycellulose Nanofibers Extracted Using Nitro-Oxidation Method

Nanomaterials ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 706 ◽  
Author(s):  
Sunil K. Sharma ◽  
Priyanka R. Sharma ◽  
Simon Lin ◽  
Hui Chen ◽  
Ken Johnson ◽  
...  
Keyword(s):  
Natural Rubber ◽  
Natural Rubber Latex ◽  
High Energy ◽  
Effective Diameter ◽  
Rubber Latex ◽  
Carboxyl Content ◽  
Force Microscopy ◽  
Petroleum Price ◽  
Atomic Force ◽  
Transmission Electron

Synthetic rubber produced from nonrenewable fossil fuel requires high energy costs and is dependent on the presumed unstable petroleum price. Natural rubber latex (NRL) is one of the major alternative sustainable rubber sources since it is derived from the plant ‘Hevea brasiliensis’. Our study focuses on integrating sustainably processed carboxycellulose nanofibers from untreated jute biomass into NRL to enhance the mechanical strength of the material for various applications. The carboxycellulose nanofibers (NOCNF) having carboxyl content of 0.94 mmol/g was prepared and integrated into its nonionic form (–COONa) for its higher dispersion in water to increase the interfacial interaction between NRL and NOCNF. Transmission electron microscopy (TEM) and atomic force microscopy (AFM) analyses of NOCNF showed the average dimensions of nanofibers were length (L) = 524 ± 203 nm, diameter (D) 7 ± 2 nm and thickness 2.9 nm. Furthermore, fourier transform infra-red spectrometry (FTIR) analysis of NOCNF depicted the presence of carboxyl group. However, the dynamic light scattering (DLS) measurement of NRL demonstrated an effective diameter in the range of 643 nm with polydispersity of 0.005. Tensile mechanical strengths were tested to observe the enhancement effects at various concentrations of NOCNF in the NRL. Mechanical properties of NRL/NOCNF films were determined by tensile testing, where the results showed an increasing trend of enhancement. With the increasing NOCNF concentration, the film modulus was found to increase quite substantially, but the elongation-to-break ratio decreased drastically. The presence of NOCNF changed the NRL film from elastic to brittle. However, at the NOCNF overlap concentration (0.2 wt. %), the film modulus seemed to be the highest.

scholarly journals Preparation of Positively Charged Membrane from Natural Rubber Latex Blending with Chitosan

2014 ◽  
Vol 24 (3S1) ◽  
pp. 51-56
Author(s):  
Wirach Taweepreda ◽  
Supawadee Tuaybut ◽  
Sineenart Puangmanee ◽  
Tran Dang Khoa
Keyword(s):  
Natural Rubber ◽  
Film Formation ◽  
Natural Rubber Latex ◽  
Interfacial Polarization ◽  
Rubber Latex ◽  
Weight Percentage ◽  
Force Microscopy ◽  
Atomic Force ◽  
Two Peaks ◽  
Positively Charged

Film formation of natural rubber latex (NRL) blended with various concentrations of chitosan was investigated. Atomic force microscopy (AFM) images clearly showed that the NRL film covered chitosan phase. Roughness of the films which was calculated from AFM image increases with increasing chitosan concentration. Miscibility of NRL and chitosan in solution was investigated by using dynamic mechanical thermal analysis (DMTA) and found that chitosan incorporated with NRL less than 40 weight percentage (wt%) was partially miscible. Films  of the chitosan blending with higher NRL contents exhibited two peaks of glass transition temperatures. Interfacial polarization and dielectric properties of polymer films were improved with increasing NRL contents. Chemical structure of the blends was characterized by using attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR).

Surface morphology of As-deposited and laser-damaged dielectric mirror coatings studied in-situ by atomic force microscopy

1992 ◽  
Author(s):  
Mark R. Kozlowski ◽  
Michael C. Staggs ◽  
Mehdi Balooch ◽  
Robert J. Tench ◽  
Wigbert J. Siekhaus
Keyword(s):  
Atomic Force Microscopy ◽  
Surface Morphology ◽  
Force Microscopy ◽  
Dielectric Mirror ◽  
Atomic Force

Surface morphology studies on sublimation grown GaN by atomic force microscopy

1999 ◽  
Vol 200 (3-4) ◽  
pp. 348-352 ◽  
Author(s):  
R.S Qhalid Fareed ◽  
S Tottori ◽  
K Nishino ◽  
S Sakai
Keyword(s):  
Atomic Force Microscopy ◽  
Surface Morphology ◽  
Force Microscopy ◽  
Atomic Force
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