Density of elastomers for pneumatic tires
Tire lightweighting is examined, including how density of an elastomer is related to its chemical constitution, and which
monomers should be used for designing an elastomer of lower density.
Articles
Structural combination design improves aging endurance of light truck radial tires
Structure of the light truck radial
tire according to characteristics of aging and endurance of the tire is examined, corresponding measures are taken to improve aging endurance, and obvious improvement results are explained.
Functionalized liquid rubber for tire formulations
Plasticizers are one of the key components of the rubber and adhesives industries. Plasticizers are used to lower hardness, improve processability and reduce raw material costs. On the other hand, mechanical properties deteriorate with plasticizer content. In addition, plasticizers often cause changes in properties with time and staining due to volatilization or bleeding. Phthalate plasticizers and aromatic oils are or possibly will be regulated due to environmental and human health issues. Kuraray liquid rubbers (KLR) are plasticizers which are co-vulcanizable with solid rubbers. Therefore, it is very unlikely that KLR will be subject to these bleeding or volatilization issues. As a result, KLR is expected to have a growth potential as an environmentally friendly plasticizer.
Read More
Avery Dennison launches embeddable UHF RFID tire tag
Avery Dennison Corporation announced the launch of the AD Maxdura tire tag, one of the most advanced embedded UHF RFID tags for the tire industry. Every year some 3 billion units are manufactured globally and RFID is increasingly being adopted by all leading tire manufacturers, Michelin for instance has announced it is fitting RFID sensor tags to all its tires by 2023 and countries such as China are looking to make its use mandatory.
Read More
Carbon black market forecast with a CAGR of 4.8 percent through 2030
According to the ChemAnalyst report, “Carbon Black Market Analysis: Plant Capacity, Production, Operating Efficiency, Technology, Demand and Supply, End-User Industries, Distribution Channel, Regional Demand, 2015-2030,” the carbon black market observed a promising demand in the past five years and is predicted to reach 27.21 million tons by 2030, along with a healthy CAGR of 4.82 percent in the next ten years, owing to their applications in automobile tires, industrial rubber products, printing inks and toners, belts and hoses, paints and coatings, and others.
Read More
Seals for hydrogen production via electrolysis
By providing seals for electrolyzers, Freudenberg Sealing Technologies is contributing to sustainable hydrogen production based on solar and wind power. The seals are designed for automated production, enabling a rapid buildup of high manufacturing capacities.
Read More
Processing promoters: Additives for rubber compounds improve mixing and processing
The efficient mixing of rubber compounds comes with many challenges. These include effectively blending the individual raw materials, which involves breaking down and blending different types of elastomers, adequately dispersing large fractions of fillers, oils and small weighments of chemicals in a relatively short time in the internal mixer. Once mixed, the compound then must be processed, e.g., extruded, calendered or molded to form the desired shape which is then vulcanized to produce the final product. The choice of the correct processing promotor will assist in these efforts. Certain promotors function primarily as dispersing agents, whereas others act more as lubricants to speed the mixed compound through the production process. Both types improve overall compound quality and production efficiency. Compound viscosity typically is also reduced. This article will focus on a number of processing promotors offered by Rhein Chemie and their effects on rubber compound quality and processability.
Read More
FKM and FFKM crosslinking methods and their effect on upper use temperature of seals
Fluoroelastomers (FKMs) were first introduced to market more than 50 years ago in response to performance needs in the aerospace industry. Their increased thermal stability and chemical resistance, and comparable mechanical properties relative to hydrocarbon rubber materials provided significant performance benefits. Not surprisingly, FKM compounds soon became widely adopted in seals and gaskets for many other applications across the automotive, oil and gas, semiconductor and pharmaceutical/ food processing industries, where long term durability and reliability in challenging environments was critical.
Read More
Ecological thermal insulation using multi-surface chlorinated rubber paint
Anti-corrosion coatings reduce the sun’s heat radiation to reduce
heat absorption and add reflective cooling.
Dynamic mechanical properties and crosslink density testing of silicone elastomers
Material evaluation tests for this article were performed using the recently developed Dynamic Mechanical Yerzley Oscillograph (DMYO). Just like the Yerzley Oscillograph (YO), the DMYO supports the ASTM D945 standard. Its design is an evolution of the YO with additional sensors,
electronic data acquisition and computer control, including automated data evaluation.