Material Analysis
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PPO Automotive Interior and Exterior Application
Problem Phenomenon
【Problem Phenomenon】Material selection for automotive instrument panel frames and interior parts requires heat resistance, dimensional stability and flame retardancy
Cause Analysis
PPE/HIPS blends have mature automotive applications: instrument panel frames, interior parts, glove boxes, fuse boxes, connectors, wheel hub caps, rearview mirror housings; flame retardant grades cover electrical parts
Solution
Select grades with PPO content matching the heat resistance grade; select UL94 certified grades for electrical parts; utilize its rigidity in thin-wall design; after adjustment, continuously sample to verify the effect, and resume mass production after confirming stability
Key Takeaway
PPO in automotive ranges from instrument panels to fuse boxes, with a complete grade matrix; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a troubleshooting reference for subsequent similar problems
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