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Exhibition Status Update!

With 3 weeks until SHOWTIME, the 20th Anniversary edition welcomes an All-Star cast of new and returning exhibitors, making up the largest DOMOTEX asia/CHINAFLOOR to date. Due to high demand in all product...

Global designers to exhibit at Luxury Br…

Designers from Europe, Middle East and North America will exhibit at the upcoming Luxury Brands Carpet Show. The second edition of the curated Luxury Brands exhibition and designer carpet collection is scheduled to...

H&M to dress Swedish teams for Olymp…

Hennes and Mauritz Group (H&M) will dress the Swedish teams for the Winter Olympics and Paralympics in PyeongChang 2018. The company will create outfits for the opening and closing ceremonies. The collection will...

Saurer to show Allma TechnoCorder TC2 at…

Saurer Technologies GmbH & Co. KG Twisting Solutions, a leading provider of energy efficient solutions for tire cord, carpet, staple, glass filament, and industrial yarns, will present its Allma TechnoCorder TC2 innovative machine...

Cone Denim and Unifi launch S Gene with …

Cone Denim and Unifi have launched the latest in advanced stretch technology - S Gene with Repreve . Combining the advanced stretch technology of S Gene with the superior sustainability and performance of...

Shima Seiki to partake in Premiere Visio…

Leading computerised knitting machine developer, Shima Seiki Mfg., Ltd., is set to participate at the Premiere Vision show, a global event for fashion professionals, to be held in Paris, from February 13 to 15, 2018...

Measurably more productive and econom- i…

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Wool to dominate at Intertextile Shangha…

Some 3,300 exhibitors from around 20 countries covering all apparel fabrics and accessories product groups are expected at the Spring Edition of the industry’s most comprehensive sourcing platform for the spring/summer season, Intertextile...

DSM unveils first hydrolysis resistant ‘Arnite polyester’


DSM unveils first hydrolysis resistant ‘Arnite polyester’

(Singapore)

Royal DSM, the global Life Sciences and Materials Sciences company, has launched Arnite A-X07455, the first high performance PET (polyethylene terephthalate) engineering plastic that is highly resistant to hydrolysis.

This breakthrough development opens up opportunities for significant weight and cost benefits over metal in automobile engine compartment applications.

As a result of continuous engine downsizing, particularly in the compact car segment, temperatures under the hood are going up, putting extra demands on plastics components used in this area.

On top of this, identical electronic components are used in vehicles sold and used worldwide, which means they need to operate under a wide range of temperature and humidity conditions. Therefore, there is an increasing need for materials that retain key properties such as strength, stiffness and impact strength under demanding hot-humid conditions.

“Injection molded parts from conventional PET lose as much as half of their tensile strength after 1000 hours at 85°C and 85% relative humidity,” says Wouter Gabrielse, Automotive Segment Manager for DSM.

“Parts made from DSM’s new hydrolysis resistant Arnite A PET keep around 90% of their initial strength under the same conditions. This was proven in simulated conditions in our laboratory. The performance we have achieved is quite spectacular.”

Arnite A-X07455 enables substitution of metals or higher cost engineering plastics such as polyphthalamides (PPA) and polyphenylene sulphide (PPS) in automotive parts that require high dimensional accuracy, good chemical resistance, and very good mechanical properties. It will enable car makers to save costs and improve fuel efficiency through light weighting.

This hydrolysis resistant Arnite A is being targeted at a variety of automotive under-the -hood applications, including throttle valve bodies, sensors, air control valve housings, electronic throttle control (ETC) and exhaust gas recirculation (EGR) covers, and ignition systems.

The new product, apart from being highly hydrolysis resistant, also exhibits high stiffness, strength and dimensional stability. Arnite A-X07455, which contains 50% glass reinforcement, has a tensile stress at break of 200MPa, according to ISO 527.

“Arnite A has been proven to be the material of choice in automotive safety applications like brake booster valve bodies for many years” says Gabrielse. “With the new hydrolysis resistant grade we can enter into applications that are closer to the engine and which until now have never been achievable with PET.”

DSM

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Middle East Textile Journal

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