diallant

Enabling a circular economy for plastics in Europe and beyond is an ambitious goal. To reach a fully closed loop, numerous challenges and knowledge gaps need to be overcome. This review provides a list of more than 6000 chemicals reported to be found in plastics and an overview of the challenges and gaps in assessing their impacts on the…[ 続きを読む ]

Some of the earliest chemistry was to make and isolate pigments for paints, and pigment conservation is a focus for many modern researchers who identify and preserve artwork.

Get to know pigments

But what is a organic pigment, exactly? Pigments are brightly colored, insoluble powders (brightly colored liquids are called dyes). In…[ 続きを読む ]

Most steel mining castings are produced in expendable sand molds. The mold is produced by forming sand around a pattern, which is a replica of the finished part. Molding sands are mixed with materials that will allow it to hold the desired shape after the pattern is removed. Holes or cavities are created by assembling sand cores in the mold.…[ 続きを読む ]

LED tube lights are usually categorised by various key designations. The most common of these are tube length (this can be stated in either imperial or metric measurements) and bulb or lamp size. Lamp size is typically given as a ‘T’ measurement, with widespread standard sizes including T5, T8 and T12.

If you’re wondering exactly what…[ 続きを読む ]

The prime mover is the power source for the drilling, while the hoisting equipment handles lifting the drill pipe to either insert it into the well or lift it out of the well. Rotating equipment is what sets the whole system in motion. Before the early 1900s, drilling equipment was spun using livestock and a wooden wheel, but now, the…[ 続きを読む ]

When sealing a paver driveway, use a product designed for clay brick, such as a siloxane-based sealer, which will protect without changing the appearance of the brick. Avoid gloss-finish sealers, which often result in a splotchy surface. There are, however, "wet look" sealers that look shiny without actually producing a gloss. …[ 続きを読む ]

Plenty of manual cutting applications call for a hand-held grinder and cutting wheel. Cutting sheet metal, sizing a piece for fabrication, cutting out a weld to refabricate it, and cutting and notching in pipeline work are just a few examples of what can be accomplished using a grinder and cutting wheel.

Resinoid-bonded cutting wheels…[ 続きを読む ]

It often seems that analog wristwatches have gone the way of the landline, the film camera, and the crowded indoor restaurant. And while you may be resigned to telling time with your phone, there’s still a chance for your kid to get a kick out of an old-school analog watch. Kids watches are not only a very cool accessory (and one with a low r…[ 続きを読む ]

If you’re on the fence about mounting your new set, where it should go, and what mount you need, we’ve put together this guide on what to consider about your home before mounting, and what hardware you should be on the lookout for to get the job done right.

What’s with your walls?

Almost all universal TV mount are compa…[ 続きを読む ]

Laboratory shakers are a key piece of equipment in any biological laboratory. Their versatility enables scientists to easily culture, monitor and scale up a range of experiments including biofuel research and microbiological cultures. When buying a new biological shaker, it’s important to consider the experiments and a…[ 続きを読む ]