scholarly journals Effect of soaking in potassium hydroxide solution on the curing, tensile properties and extractable protein content of natural rubber latex films

2008 ◽  
Vol 27 (8) ◽  
pp. 1013-1016 ◽  
Author(s):  
K. Siti Maznah ◽  
A. Baharin ◽  
I. Hanafi ◽  
M.E. Azhar ◽  
M.H. Mas Rosemal Hakim
Keyword(s):  
Natural Rubber ◽  
Protein Content ◽  
Tensile Properties ◽  
Potassium Hydroxide ◽  
Potassium Hydroxide Solution ◽  
Natural Rubber Latex ◽  
Latex Films ◽  
Rubber Latex ◽  
Hydroxide Solution ◽  
Extractable Protein

scholarly journals Knotty Tear Phenomena and Effect of Maturation Time on Knotty Tear in Filled Natural Rubber Latex Films

2019 ◽  
Vol 8 (4) ◽  
pp. 7013-7017
Keyword(s):  
Natural Rubber ◽  
Protein Content ◽  
Natural Rubber Latex ◽  
Latex Films ◽  
Rubber Latex ◽  
Maturation Time ◽  
Tearing Energy

Knotty tearing is a phenomena normally observed in reinforced black-filled natural rubber (NR) vulcanizate but not in gum NR vulcanizate. Unfortunately the underlying cause of knotty tear is still not fully understood and need to be unraveled. Many factors contribute to knotty tear behavior which include suppression of strain-induce crystallization, protein content of latex, vulcanization temperature and pre-vulcanization and post-vulcanization of latex. In this study, we concentrate on varying the maturation time during compounding process in filled NR latex (NRL) to study knotty tear behavior. The maturation time were varied in the range (0 – 72) hrs; and the tear deviation were measured to determine the extent of knotty tear phenomena. It was found that at the optimum maturation time of 24 hrs samples show highest tearing energy and show knotty tear phenomena with the least angle of tear deviation

Centrifuging Effect on the Structure and Property of Natural Rubber Latex Films

2003 ◽  
Vol 42 (4) ◽  
pp. 503-514 ◽  
Author(s):  
M. F. Mina ◽  
M. M. Alam ◽  
F. Akhtar ◽  
K. Imaizumi ◽  
S. Yoshida ◽  
...  
Keyword(s):  
Natural Rubber ◽  
Natural Rubber Latex ◽  
Latex Films ◽  
Rubber Latex ◽  
Structure And Property

Preparation and properties of g‐C 3 N 4 on natural rubber latex films

2020 ◽  
Vol 41 (8) ◽  
pp. 3124-3134
Author(s):  
Jing Chen ◽  
Lusheng Liao ◽  
Fuquan Zhang ◽  
Tianming Gao ◽  
Jiazhao Lin ◽  
...  
Keyword(s):  
Natural Rubber ◽  
Natural Rubber Latex ◽  
Latex Films ◽  
Rubber Latex

The Effect of Pre-Vulcanization Temperature on Mechanical and Rheological Properties of Starch Filled Natural Rubber Latex Compounds

2013 ◽  
Vol 858 ◽  
pp. 184-189
Author(s):  
Siti Rohana Yahya ◽  
Farah Nadiah Hamdan ◽  
Azura A. Rashid ◽  
Baharin Azahari
Keyword(s):  
Natural Rubber ◽  
Rheological Properties ◽  
Room Temperature ◽  
Natural Rubber Latex ◽  
Shear Thickening ◽  
Filler Loading ◽  
Latex Films ◽  
Rubber Latex ◽  
Thickening Behavior ◽  
Vulcanization Process

The main objective of this study was to investigate the effect of the pre-vulcanization temperature on mechanical and rheological properties of starch filled natural rubber (NR) latex films. The 10 phr filler loading of starch was added into the latex prior to the pre-vulcanization process at 60°C to 140°C. The dipped films were cured in the oven at 100°C for 20 minutes and cooled at room temperature for 24 hours before stripping. The rheological properties of NR latex compounds were studied based on the viscosity measurement. The tensile and tear tests of starch filled NR latex films were also carried out. The results indicated that the rheological properties of the latex compounds showed shear thickening behavior where viscosity was increased with the increase in shear rate and pre-vulcanization temperature proportionally. The pre-vulcanization temperature at 80°C showed the optimum mechanical properties of starch filled NR latex films.

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