my.chemeurope.com
With an accout for my.chemeurope.com you can always see everything at a glance – and you can configure your own website and individual newsletter.
Abstract
Blends of natural rubber (NR) and synthetic rubbers are widely used in the rubber industry to meet specific performance requirements. Further, the emerging field of organomodified clay‐ rubber nanocomposites could provide a host of novel materials having a unique combination of properties to meet various stringent service conditions. Previous studies have shown that at very low dosages, china clay (kaolin) modified with sodium salt of rubber seed oil (SRSO) improved the cure characteristics and physico‐mechanical properties of NR. Results of the present study show improved cure characteristics and physico‐mechanical properties for blends of NR with butadiene rubber (BR) / nitrile rubber (NBR) containing 4 phr of SRSO modified kaolin as indicated by reduction in optimum cure time (t90) along with higher tensile strength, tensile modulus and elongation at break for their vulcanizates as compared to those containing unmodified kaolin. The SRSO modified kaolin – rubber nanocomposites showed improved flex resistance, reduced heat buildup, tan delta (tanɗ) and loss modulus and higher chemical crosslink density index indicating reinforcing effect of SRSO modified kaolin, enabling them for potential industrial applications.
| Authors: | V. Raji Vijay, Surya Ramakrishnan, Rugmini Sukumar, Brahmakumar M, A. R. Ravindranatha Menon | |
| Journal: | Polymer International | |
| Year: | 2015 | |
| Pages: | n/a | |
| DOI: | 10.1002/pi.4956 | |
| Publication date: | 15-Jun-2015 |
The unfolding landscape of the congenital myasthenic syndromes
Abstract Congenital myasthenic syndromes (CMS) are heterogeneous disorders in which the safety margin of neuromuscular transmission is impaired by one or more specific mechanisms. Since the advent of next‐generation sequencing methods, the discovery of novel CMS targets and phenotypes ha ... more
Passive transfer models of myasthenia gravis with muscle‐specific kinase antibodies
Abstract Myasthenia gravis (MG) with antibodies to muscle‐specific kinase (MuSK) is characterized by fluctuating fatigable weakness. In MuSK MG, involvement of bulbar muscles, neck, and shoulder and respiratory weakness are more prominent than in acetylcholine receptor (AChR) MG. MuSK au ... more
Abstract Because of the failure of many promising therapeutics identified in preclinical evaluation, funding sources have established guidelines for increased rigor in animal evaluations. The myasthenia gravis (MG) community of scientists has developed guidelines for preclinical assessme ... more
Smart skin made of recyclable materials may transform medicine and robotics
Smart skin that can respond to external stimuli could have important applications in medicine and robotics. Using only items found in a typical household, researchers have created multi-sensor artificial skin that's capable of sensing pressure, temperature, humidity, proximity, pH, and air ... more
How mercury contamination affects reptiles in the Amazon basin
Mercury contamination in water and on land is of worldwide concern due to its toxic effects on ecosystems and human health. Mercury toxicity is of particular concern to reptiles because they are currently experiencing population declines. Also, reptiles are ideal indicators of mercury conta ... more
Bioengineers Succeed in Producing Plastic Without the use of Fossil Fuels
A team of pioneering South Korean scientists have succeeded in producing the polymers used for everyday plastics through bioengineering, rather than through the use of fossil fuel based chemicals. This groundbreaking research, which may now allow for the production of environmentally consci ... more
Read what you need to know about our industry portal chemeurope.com.
© 1997-2021 LUMITOS AG, All rights reserved
