polymerguru

Today's KNOWLEDGE Share Jiangsu Suoteng Offers Dicumene as a Non-toxic, Synergistic Flame Retardant Jiangsu Suoteng offers Dicumene (DMDBP), a non-hazardous, carbon-based initiator with excellent performance. It is mainly used for polymer cross-linking or grafting reactions at higher temperatures.  Solution for Halogen-antimony Systems and Halogen-free Alternatives: In recent years, the flame retardant industry has seen growing demand for dicumene. It is known for its high stability, safe use, and good environmental performance. Dicumene is primarily used as an initiator, grafting agent, and flame retardant synergist in engineering plastics, flame retardant polyolefins, and other applications. As environmental regulations become stricter, traditional flame retardants are facing restrictions due to low efficiency, large dosages, and environmental concerns. This has led to a shift toward greener, more efficient, and low-toxicity flame retardants. Dicumene, as one of the earliest free...

Today's KNOWLEDGE Share Resonac Develops New Photosensitive Film for Advanced Semiconductor Packages "Resonac has developed a new high-resolution photosensitive film for use in the manufacturing of advanced semiconductors, such as AI processors. This film enables the formation of ultra-fine copper circuits with a line width and spacing of 1.5 micrometers (μm) on organic interposers 1. (Patent acquired).   Semiconductors have evolved to integrate more functions on a single integrated circuit by miniaturizing circuits, allowing for complex computational processing at high speeds. In recent years, packaging technologies have continued to innovate, including chiplet technology*2 which interconnects multiple chips on an interposer to achieve both high functionality and high-speed processing. Currently, interposers are manufactured using wafers, but as the number of chips increases, the interposer area needs to be enlarged, presenting challenges such as yield rates. As a solution, o...

DURABIO™, a bio-based engineering plastic from the Mitsubishi Chemical Group ("the MCG Group"), has been adopted for use in the front grille of the new Fronx compact SUV from Suzuki Motor Corporation ("Suzuki") launched on October 16. DURABIO™ is a bioengineering plastic made from isosorbide, a renewable plant-derived raw material that reduces the consumption of petroleum, a depletable resource, and contributes to the reduction of greenhouse gases because the plants used as raw materials absorb CO2 during their growth. Offering excellent impact resistance, scratch resistance, and colorability, this material is being developed for use across a wide range of fields, including automotive interior and exterior parts, optical and electronic device components, and everyday sundries. DURABIO™ has been widely used for front grilles on Suzuki's domestic and overseas models such as Swift, Spacia Custom and Vitara since S-Cross was launched in Europe at the end of 2021. Th...

Today's KNOWLEDGE Share The World’s First Ultra-Thin Polyimide Film at Just 4 Micrometers (μm)! The world's thinnest ultra-film  : By producing this 4-micrometer  ultra-thin polyimide film , following the successful commercialization of a 5-micrometer ultra-thin film, PI Advanced Materials has demonstrated its unrivalled film-making technology on a global scale. The development is expected to provide a competitive edge to the company in the market for lightweight products, essential to the growing trend of slimmer electronic devices, including smartphones. Essential material in the electronics  Polyimide films are essential materials in the electronics, aerospace, and automotive industries due to their exceptional heat resistance and strength. While most polyimide films are produced in thicknesses ranging from 12.5 to 25 micrometers, PI Advanced Materials stands out as the only manufacturer worldwide offering a 4-micrometer polyimide film produced by a non-...

A new method for recycling black polystyrene plastics, such as coffee lids and food containers, could help divert these materials from landfills. The approach, reported in ACS Central Science, uses sunlight or white LED light to transform black and colored polystyrene waste into reusable chemical components. Black plastics are notoriously difficult to recycle due to the color additives complicating sorting processes. Researchers at Cornell University and Princeton University, led by Sewon Oh, Hanning Jiang, and Erin Stache, have developed a technique that uses carbon black, a common additive in these plastics, to initiate a recycling process using light. “Simple, visible light irradiation holds the potential to transform the chemical recycling of plastics, using the additives already found in many commercial products,” the authors stated. The method involves grinding polystyrene mixed with carbon black into a fine powder, which is then sealed in a glass vial. Exposing the vial to h...

Today's KNOWLEDGE Share Warpage of a GF filled nylon part is extremely dependent on temperature and moisture uptake. Temperature increase is responsible for matrix expansion (negligible for the fibers though), and moisture uptake produces matrix swell (again GF does not care much). So if a part is warped when dry as molded at room temperature (that is what simulation codes will predict for you !!) it will tend to "UNWARP" as you heat the part or let it uptake moisture. This effect can perfectly be simulated, if you account properly for the anisotropic elastic properties and fiber orientation and know the swell rate with water uptake. For temperature induced UNWARP you will need detailed CTE (T) in x, y and z though to get it right ! Those CTE's, with the needed level of detail, are not available directly from Flow Analysis codes for the moment, but e-Xstream engineering, part of Hexagon’s Manufacturing Intelligence division Digimat software can provide those. source:V...

Today's KNOWLEDGE Share Mercedes claims new 'solar paint' could eliminate daily EV charging: Mercedes-Benz has unveiled a list of research programs and future technologies it's working on including a "new kind of solar paint" it says could generate enough energy for up to 20,000 km (12,427 miles) of driving per year under ideal conditions. But what if the entire painted surface of the car could capture solar energy? Solar paint is not a new idea in and of itself; there are a few different techniques, mainly within the research space, that allow photovoltaic material to be sprayed directly onto surfaces. Painting entire cars with it, however, would be quite a leap forward – and that's what Mercedes-Benz is talking about as part of a new "Pioneering innovations for the car of the future" presentation outlining some key research programs it's working on. Here are the key claims distilled from the Benz press release: The solar paint would add jus...