RFID
tags that do not contain a silicon chip are called chipless tags. These
chipless tags could eventually be printed directly on products and packaging
for 1¢. Far more versatile and reliable, the tags could replace 10 trillion
barcodes per year. This article reports some of the findings from a new study
on the topic.
Following is a list of terms relating to the manufacture of polymers and their definitions. See sidebar for abbreviations for the most common rubber polymer types. Accelerator: Chemical added to
Silicones used in adhesive and sealant applications can provide good bonding to substrates without the use of primers or surface modification techniques, such as corona, flame and plasma treatments; but some situations require the use of these additional components and/or processing steps to significantly boost adhesion to substrate surfaces.
This
is the first of two articles addressing the role that low-molecular-weight
polyolefins and wax additives have in the formulation and performance of
hot-melt adhesives. This part examines wax additives available to the
formulator; their composition, characteristics, and manufacture; and general
information about their use. Part two will address specific characteristics of
various types of polyolefins and their role in hot-melt adhesives, including
formulation examples.
Around
the globe, agitator mixing, or mechanical agitation, is the most common mixing
technique in the liquid-processing industry. This type of mixing is less
expensive than other methods, offers more portability, is more easily
available, and there are many variations for industry to choose from.
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