January 2023
Rubber World’s January issue is now available online.
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January
Tensile testing principles: Fundamentals, methods and challenges
Tensile testing is arguably the most common test method used in both force measurement and material testing. Tensile testing is used primarily to determine the mechanical behavior of a component, part or material under static, axial loading.
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Test methods for compression stress relaxation
The C11 Wallace compression stress relaxometer allows flexibility and enables different samples over varying time periods to be tested.
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Effect of nanotube type and loading level on abrasion resistance
Changes in compound chemistry are evaluated differently based on the chosen abrasion test and on the immediate test settings used.
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Automatic process monitoring with iQ clamp control and machine learning
Machine learning methods are used to explore the potential of mold breathing for quality assurance in rubber injection molding.
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Patents for January 2023
Patents for January 2023 as compiled by the editors of Rubber World Magazine
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Takeaways from a half century in the latex industry
I retired recently, but still feel contributive and expect to be so for quite a while. The expression, “If you enjoy what you do, you’ll never work a day in your life,” sums up what I believe. It helps to have a positive attitude, as well. This attitude provides resilience and sustainability in the face of uncertain outcomes. After more than 50 years in the latex industry, I would like to share a few of my takeaways from those years.
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January 2022
January 2022
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How to increase throughput when testing elastomers
When elastomers are being used in a manufacturing process, it is important to verify their physical properties by performing testing
at all stages of production. When researching and developing new elastomers, such as those used in tires, extensive testing is required to verify and validate each elastomeric compound. Research and development facilities for elastomeric materials will sometimes go through hundreds or thousands of specimens before moving on toward production. During production, testing is typically performed for quality control purposes
Application of advanced gel permeation chromatography to the characterization of styrenic copolymers
Products produced by anionic polymerization of nonpolar monomers, such as polybutadienes (BR), polyisoprenes (IR), solution styrene butadiene rubbers (SSBR) and styrenic block copolymers (SBC), already dominate important positions in industries. Examples include thermoplastic elastomers, adhesives, impact modifiers, lubricant modifiers, vulcanized compounds, asphalt modification and others. SBCs combine the properties of a thermoplastic resin, polystyrene and those of an elastomer, polybutadiene, polyisoprene or poly(ethylene-co-butylene). SBCs derive their useful properties from their ability to form distinct styrene (hard phase) and diene (rubber phase) domains
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