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Hexpol TPE creates more possibilities to be green
Thermoplastic elastomer compounding group, Hexpol appearance.“With these new developments to the Dryflex
TPE, has added new compounds to its Dryflex Green Green TPE range, using different renewable content and
family of biobased TPEs, creating more opportunities for covering a greater hardness range, we have created more
sustainability. Dryflex Green is a family of thermoplastic design and sustainability possibilities.”
elastomer compounds based on raw materials from
DeWAL Industries unveils
renewable resources enhanced UHMW-PE film
such as plant and products
vegetable crops.
Raw materials can DeWAL Industries Inc., a leading manufacturer of
be produced from high-performance polymer films, is pleased to
various renewable announce the launch of three enhanced UHMW-PE
sources, these film products, each for a specific application.DW406BF
include products and DW406WF are pigmented UHMW films that can
and by-products from be used in the hose lining or other contact areas
agricultural that are for potable water, pharmaceutical applications and
rich in carbohydrates, especially saccharides such as grain,
sugar beet and sugar cane.
Hexpol TPE has developed several new customization cosmetic manufacturing, along with more traditional
options for the Dryflex TPE compounds. The hardness hydraulic and chemical hose. The films are black and
range has been expanded to include 20 Shore A to 50 Shore white respectively, and the pigment fillers are FDA
D, with amounts of renewable biocontent to more than compliant. Because UHMW-PE in its natural state is not
90 percent, depending on the hardness.Thomas Köppl,
manager central technology and development center at
Hexpol TPE said: “One of the key challenges we faced
with the Dryflex Green TPE compounds was to develop low
hardnesses with high levels of renewable content, since tolerant of UV light, DeWAL incorporated fillers into
most biobased raw materials in the market are quite hard a natural UHMW film to create DW402UV, which will
on their own. We have now added lower hardnesses to the perform even in environments where UV is present.
Dryflex Green range while at the same time maintaining DeWAL developed each of these products in response to
mechanical properties.” widespread requests from customers who couldn’t find
the UHMW films they needed elsewhere,” said Warren
Hexpol TPE has additionally developed compounds using DiClemente, Business Unit Manager (Film Products)
organic fillers and natural fibers from plants, crops or trees, of the Rhode Island-based manufacturer. “We’re very
including cork. Cork is a natural product which comes from pleased to be able to use the full depth and breadth of
the bark of the cork oak tree. The removal of the bark DeWAL’s expertise to help our customers succeed.” Like
does not harm the trees and the bark is only harvested all ultra high molecular weight polyethylene, the new
after the first 20 years of growth. The removal stimulates films offer excellent physical, chemical, mechanical
a steady regeneration of the bark. Each cork tree provides and abrasion resistance and a low coefficient of
on average 16 harvests over its 150-200 year lifespan. Klas friction. An extremely versatile engineering material
Dannäs, global research and development coordinator at that carries FDA and USDA compliance characteristics,
Hexpol TPE added: “For customers that want biobased UHMW-PE is often specified for rubber hose, profile
products that also have a natural look and feel, the use of and belt applications in severe service environments.
cork and natural fibers helps to give an additional ‘organic’
81 • December 2016 • Plastics News
