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Sumika Manufactures First-ever Short Glass Fiber Reinforced PP Inner Tailgate Trim

Published on 2022-09-27. Edited By : SpecialChem

TAGS:  Automotive     Thermoplastic Composites   K Show 2022   

Sumika Manufactures First-ever Short Glass Fiber Reinforced PP Inner Tailgate Trim Sumika Polymer Compounds (Sumika) and Flex-N-Gate Europe combined expertise to manufacture the world’s first short glass fiber reinforced polypropylene (PP) inner tailgate trim for Stellantis’ new DS4 hatchback.

Outstanding Mechanical Performance

Flex-N-Gate has over six decades of experience with auto OEMs offering a full range of design services from initial concept renderings to fully functional prototypes for the development of world-class automotive applications.

The rising e-mobility trend has increased the need for light-weighting solutions as balancing the vehicle’s load and axle weight distribution is important for performance and fuel efficiency. Battery powered electric vehicles (BEVs) and hybrid electric vehicles (HEVs) bring new challenges to automakers concerning trunk weight balancing.

The material choice to mold a complex, large inner tailgate part for Stellantis’ DS4 hatchback allowing for metal inserts and fixtures had to provide a homogenous glass fiber dispersion in very long flow lengths, provide outstanding mechanical performance, and offer a Class-A surface finish that also included the OEM’s color and UV specifications.

Sumika, who has over 40 years’ experience in manufacturing compounds for demanding automotive applications, combined a high fluidity PP from parent company Sumitomo Chemical and unique short glass fibers with advanced sizing and binding technology to develop a customized THERMOFIL HP® compound which ultimately provided higher mechanical properties than long glass fiber filled PP compounds.

Sumika’s THERMOFIL HP® short glass fiber reinforced PP compound allowed easy processing during injection with fewer nozzles, a perfectly smooth and outstanding surface aesthetic with no visible weld lines, and a shorter cycle time of up to 5%, thereby saving energy. The part is also fully recyclable at end-of-life.

The Stellantis DS4 inner tailgate will be displayed at Sumika Polymer Compounds’ stand at K2022 in Düsseldorf, Germany (Oct. 19-26) in Hall 7.2 A14.

Related Read: Automotive Megatrends Driving Plastics Innovations Forward. 

Source: Sumika Polymer Compounds

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