Page 82 - Plastics News July 2024

IN THE NEWS

What Advances Are Being Made in

Polymer Engineering?

researchers are focusing on bio-based polymers,
which are derived from renewable resources like
corn starch, sugarcane, and cellulose. These mate-
rials offer comparable properties to conventional
plastics but are biodegradable, reducing their envi-
ronmental footprint.

Recent advancements in sustainable polymers in-
clude the development of polylactic acid (PLA), a bi-
odegradable polymer made from fermented plant
starch. PLA is being increasingly used in packaging,
disposable cutlery, and even medical implants. An-
other exciting development is the creation of PEF
(polyethylene furanoate), a bio-based polymer with
superior barrier properties compared to PET (poly-
ethylene terephthalate). PEF can extend the shelf
life of packaged foods and beverages, making it a
promising alternative for the packaging industry.
2. High-Performance Polymers

High-performance polymers are engineered to
olymer engineering, a branch of materials sci- withstand extreme conditions, such as high temper-
ence that focuses on designing, analyzing, and atures, chemical exposure, and mechanical stress.
Pmodifying polymers, is at the forefront of nu- These materials are crucial in industries like aero-
merous technological innovations. Polymers, which space, automotive, and electronics, where reliability
are large molecules composed of repeated subu- and durability are paramount.
nits, are integral to countless applications, ranging
from everyday household items to advanced medi- One significant advancement in this area is the de-
cal devices and aerospace components. The field velopment of polyimides, which can maintain their
of polymer engineering is continuously evolving, properties at temperatures exceeding 300°C. Poly-
driven by the need for materials that are more du- imides are used in a variety of high-temperature ap-
rable, sustainable, and versatile. This article delves plications, including flexible electronics, insulation
into the recent advances in polymer engineering, for wires, and components in jet engines. Similarly,
highlighting significant breakthroughs and their im- PEEK (polyether ether ketone) is another high-per-
plications for various industries. formance polymer known for its exceptional me-
1. Sustainable Polymers chanical properties and chemical resistance. PEEK
is used in demanding applications such as medical
One of the most pressing challenges in polymer implants, where it can replace metals due to its bio-
engineering is developing sustainable polymers to compatibility and radiolucency (invisibility to X-rays).
reduce environmental impact. Traditional polymers, 3. Smart Polymers
such as polyethylene and polypropylene, are de-
rived from non-renewable fossil fuels and contrib- Smart polymers, also known as stimuli-responsive
ute significantly to plastic pollution. In response, polymers, can change their properties in response

84 PLASTICS NEWS July 2024