PPS-polyamide pipe becomes a new choice for electric vehicle coolant pipeline

Japan Polyplastics - Evonik and Toray Industries have jointly developed a three-layer extruded tube with an outer polyamide 12 layer and an inner polyphenylene sulfide resin (PPS) layer bonded with a special adhesive together
.
The tubing is capable of withstanding temperatures of 130°C and has low levels of ion elution into the cooling water
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Target applications include coolant lines for electric vehicles and industrial machinery
.

PA12 is often combined with PP as the inner layer of automobile coolant pipelines, but this material is relatively weak in continuous use and has the problem of hydrolysis
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With its heat resistance and hydrolysis resistance, PPS resin solves these problems, but it cannot be directly combined with long-chain polyamides such as pa12
.
Polyplastics-Evonik and Toray have solved this challenge with a new material that can bond two resins together using a co-extrusion process
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New tube constructions are more heat resistant and can replace metal tubes, and corrugated tubes are also an option
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In addition, the low level of ion elution makes this tubing particularly suitable for electric vehicle and fuel cell vehicle applications
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Toray is the world's leading supplier of polyphenylene sulfide resins
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Polyplastics-Evonik has been actively developing the automotive PA 12-PP pipe market, and has now added a new high-temperature pipe product portfolio through cooperation with Toray
.