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Heat-Resistant Plastics Comparison Table
The following is a comprehensive table of Heat-Resistant Plastics, covering key information such as common materials, temperature range, characteristics, and application areas.
Heat-Resistant Plastics Comparison Table |
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| Material Name | Continuous Use Temp. (°C) | Short-Term Max. Temp. (°C) | Key Properties | Primary Applications | Pros & Cons |
| PEEK | 250 – 260 | 300 | High strength, chemical resistance, wear-resistant, flame-retardant | Aerospace, medical implants, automotive parts, electrical insulation | Pros: Outstanding overall performance; Cons: High cost |
| PI (Polyimide) | 260 – 350 | 400+ (short-term) | Extreme heat resistance, low thermal expansion, excellent mechanical properties | High-temp insulation, aerospace components, semiconductors, flexible PCBs | Pros: Ultra-high temp performance; Cons: Difficult processing |
| PEI (Polyetherimide) | 170 – 200 | 210 | Transparent, flame-retardant, good dimensional stability | Medical devices, food-grade containers, electronic connectors, aircraft interiors | Pros: Easy processing; Cons: Moderate chemical resistance |
| PPS (Polyphenylene Sulfide) | 200 – 240 | 260 | Chemical-resistant, high rigidity, flame-retardant | Automotive fuel systems, electronic encapsulation, chemical piping | Pros: Excellent corrosion resistance; Cons: Brittle |
| PTFE (Polytetrafluoroethylene) | -460 | 300 (short-term) | Ultra-low friction, resistant to almost all chemicals | Non-stick coatings, seals, chemical linings | Pros: Chemically inert; Cons: Low mechanical strength, hard to process |
| PAI (Polyamide-imide) | 250 – 280 | 300 | Ultra-high strength, creep-resistant, wear-resistant | Bearings, gears, aerospace engine components | Pros: Superior mechanical properties; Cons: Expensive |
| LCP (Liquid Crystal Polymer) | 200 – 300 | 340 (short-term) | High flowability, low thermal expansion, radiation-resistant | Precision electronics (connectors, sensors), microwave devices | Pros: Ideal for thin-wall molding; Cons: High anisotropy |
| PPSU (Polyphenylsulfone) | 180 – 200 | 220 | Hydrolysis-resistant, high toughness, sterilizable | Medical equipment, food-contact parts, aircraft interiors | Pros: Good impact resistance; Cons: High cost |
| PC (Polycarbonate) | 120 – 135 | 150 | Transparent, impact-resistant, easy to process | Electronic housings, safety goggles, automotive headlight covers | Pros: Excellent transparency; Cons: Limited heat resistance |
| PVDF (Polyvinylidene Fluoride) | -190 | 170 | UV-resistant, chemical-resistant, piezoelectric | Solar panel backsheets, chemical tanks, wire/cable sheathing | Pros: Good weatherability; Cons: Moderate mechanical strength |
Additional Notes
- Temperature Ranges: Typically based on long-term continuous use (UL rating).
- Short-Term Peak Temp.: Refers to maximum exposure for limited durations (e.g., hours).
- Material Selection Tips:
- Ultra-high temp (>250°C): PI, PEEK, PAI preferred.
- Chemical stability: PTFE, PVDF.
- Precision electronics: LCP, PEI.
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