Mechanical properties, chemical and aging resistance of natural rubber filled with nano-Al2 O3

2012 ◽  
Vol 33 (3) ◽  
pp. 404-411 ◽  
Author(s):  
Ji-Fang Fu ◽  
Li-Ya Chen ◽  
Hui Yang ◽  
Qing-Dong Zhong ◽  
Li-Yi Shi ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Natural Rubber ◽  
Aging Resistance

HXNBR Coating for Improving Aging Resistance of Natural Rubber Products

2006 ◽  
Vol 79 (4) ◽  
pp. 553-560 ◽  
Author(s):  
Rani Joseph
Keyword(s):  
Mechanical Properties ◽  
Natural Rubber ◽  
Room Temperature ◽  
Oxidative Degradation ◽  
Thin Coating ◽  
Oil Resistance ◽  
Aging Resistance ◽  
Natural Rubber Vulcanizates ◽  
Good Heat ◽  
Accelerator System

Abstract HXNBR (Hydrogenated Carboxylated Nitrile Rubber) has very good heat ageing resistance and oil resistance. A novel accelerator system is designed to bring about the vulcanization of HXNBR at room temperature. The room temperature cured samples showed good mechanical properties equivalent to those of high (150 °C) temperature cured samples. Natural rubber vulcanizates are highly prone to oxidative and ozone degradation. The oil resistance of natural rubber vulcanizates is also very low. The oil resistance, ozone and oxidative degradation resistance of natural rubber vulcanizates are considerably improved by placing a thin coating of HXNBR over it.

The Effects of Hanging Microbe Coagulation Natural Rubber on Molecular Structures and Mechanical Properties

2012 ◽  
Vol 581-582 ◽  
pp. 715-718
Author(s):  
Jin Feng Li ◽  
Mao Fang Huang ◽  
Jian He Liao ◽  
Pu Wang Li ◽  
Tian Ming Gao
Keyword(s):  
Mechanical Properties ◽  
Natural Rubber ◽  
Dynamic Mechanical Properties ◽  
Molecular Structures ◽  
Network Structures ◽  
Dynamic Mechanical ◽  
Universal Testing ◽  
Aging Resistance ◽  
The Cross

In this study, the cross-linked network structures, dynamic mechanical properties and Po、PRI of microbe coagulated natural rubber (NR) samples were analyzed. And mechanical properties of the corresponding NR vulcanizates were further determined by universal testing machines. The results show that the NR of aging resistance increased with the cycle of hanging.When hanged 14 days,the PRI and P0 were 85 and 36.6. With the cycle of hanging rising, NR raw rubber of cross-linked density increased,and had good dynamic mechanical properties as compared with that hanged 0 days.

scholarly journals Effect of curing system on the mechanical properties and heat aging resistance of natural rubber/tire tread reclaimed rubber blends

2005 ◽  
Vol 24 (6) ◽  
pp. 728-732 ◽  
Author(s):  
N. Rattanasom ◽  
A. Poonsuk ◽  
T. Makmoon
Keyword(s):  
Mechanical Properties ◽  
Natural Rubber ◽  
Rubber Blends ◽  
Rubber Tire ◽  
Aging Resistance

Thermo-oxidative stabilization for natural rubber nanocomposites by polydopamine interfacial tailored clay

RSC Advances ◽  
2016 ◽  
Vol 6 (88) ◽  
pp. 84906-84913 ◽  
Author(s):  
Y. Fu ◽  
L. Wang ◽  
L. Zhang ◽  
W. Wang
Keyword(s):  
Mechanical Properties ◽  
Hydrogen Bonding ◽  
Natural Rubber ◽  
Oxidative Stabilization ◽  
Aging Resistance ◽  
Rubber Nanocomposites

Bio-inspired interfacial tailored polydopamine improves the thermo-oxidative stabilization, aging resistance and mechanical properties of natural rubberviarobust hydrogen bonding.

Effect of coir fiber reinforcement on mechanical properties of vulcanized natural rubber composites

2018 ◽  
Vol 25 (3) ◽  
pp. 517-528 ◽  
Author(s):  
Yogesh Patil ◽  
Sumit Sharma
Keyword(s):  
Mechanical Properties ◽  
Natural Rubber ◽  
Fiber Reinforcement ◽  
Maximum Load ◽  
Coir Fiber ◽  
Rubber Composites ◽  
Aging Test ◽  
Natural Rubber Composites ◽  
Aging Resistance ◽  
Different Temperatures

Abstract In this study, the effect of coir fiber reinforcement on the mechanical properties of vulcanized natural rubber composite has been studied. An attempt has been made to predict the effect on tensile strength, maximum load, and elongation at break (%) of coir fiber-reinforced vulcanized natural rubber composites under cold, heat, and water aging tests. The natural rubber was vulcanized at 150°C. The fibers were soaked in a 5% solution of NaOH for 48 h at room temperature. At different temperatures, cold, heat, and water aging resistance tests were conducted to understand the behavior of the composite under different environment. The properties recorded after aging tests were compared with initial properties to investigate the effect of fiber reinforcement. The results revealed that the samples containing coir fiber showed better performance after each aging test. The specimens showed the highest properties in case of water aging resistance.

EFFECT OF ZINC DITHIOCARBAMATES AND THIAZOLE-BASED ACCELERATORS ON THE VULCANIZATION OF NATURAL RUBBER

2012 ◽  
Vol 85 (1) ◽  
pp. 120-131 ◽  
Author(s):  
Md. Najib Alam ◽  
Swapan Kumar Mandal ◽  
Subhas Chandra Debnath
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
Reaction Mechanism ◽  
Natural Rubber ◽  
High Performance ◽  
Binary Systems ◽  
Synergistic Activity ◽  
Tetramethylthiuram Disulfide

Abstract Several zinc dithiocarbamates (ZDCs) as accelerator derived from safe amine has been exclusively studied in the presence of thiazole-based accelerators to introduce safe dithiocarbamate in the vulcanization of natural rubber. Comparison has been made between conventional unsafe zinc dimethyldithiocarbamate (ZDMC) with safe novel ZDC combined with thizole-based accelerators in the light of mechanical properties. The study reveals that thiuram disulfide and 2-mercaptobenzothiazole (MBT) are always formed from the reaction either between ZDC and dibenzothiazyledisulfide (MBTS) or between ZDC and N-cyclohexyl-2-benzothiazole sulfenamide (CBS). It has been conclusively proved that MBT generated from MBTS or CBS reacts with ZDC and produces tetramethylthiuram disulfide. The observed synergistic activity has been discussed based on the cure and physical data and explained through the results based on high-performance liquid chromatography and a reaction mechanism. Synergistic activity is observed in all binary systems studied. The highest tensile strength is observed in the zinc (N-benzyl piperazino) dithiocarbamate-accelerated system at 3:6 mM ratios. In respect of tensile strength and modulus value, unsafe ZDMC can be successfully replaced by safe ZDCs in combination with thiazole group containing accelerator.

Influences of purification and surface treatment of sugarcane bagasse ash on mechanical properties of natural rubber composites

2021 ◽  
Author(s):  
Supparoek Boopasiri ◽  
Noottiyaporn Suwantrakrit ◽  
Pongdhorn Sae‐Oui ◽  
Chomsri Siriwong
Keyword(s):  
Mechanical Properties ◽  
Natural Rubber ◽  
Surface Treatment ◽  
Sugarcane Bagasse ◽  
Rubber Composites ◽  
Natural Rubber Composites ◽  
Sugarcane Bagasse Ash
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