黑料社

Technical Focus (for “Resources / Material Properties” or “Why PET?” page)

2026.06.04

础耻迟丑辞谤：

Title: Material Characteristics of PET as a Wire Coating — What Makes PET Coated Wire Stable, Safe and Process-Friendly

PET (polyethylene terephthalate) is a crystalline saturated polyester widely used where combined strength, stiffness and thermal/service-life stability are required. As a coating or co-extruded/laminated layer on wire, it changes how the product behaves in real production and field use.

1) Mechanical & thermal service behavior

High strength / high rigidity and good creep resistance mean the coated wire sustains tension and clamping forces better over time.

Dimensional stability is emphasized for precision-related use: minimal deformation under heat or sustained stress helps downstream guides, dies, and forming stations stay predictable.

Wear and fatigue resistance support applications where the wire sees repeat bending, sliding, or vibration—typical in bundling harnesses or binding systems.

2) Electrical insulation profile

PET’s polar-polymer nature provides useful dielectric behavior; the site notes low dielectric loss even at high frequencyfor certain PET-wire contexts, which is relevant wherever coated wire runs near signal lines or where basic insulation barriers matter.

Corona resistance is candidly noted as “relatively poor” in raw form, but improvable via modification—so specification choices (grade/formulation) matter.

3) Environmental adaptability

Strong weather/UV resistance and chemical stability against many organic solvents, oils, and weak acids make PET coated solutions attractive for outdoor or semi-exposed conditions (construction sites, greenhouses, transport packaging). Low water absorption also helps keep electrical/hygroscopic variables steadier in humid storage or use.

4) Flame & sustainability framing

Modified grades can target self-extinguishing behavior and flame-retardant benchmarks (V-0 type discussions appear in the site’s copy), while remaining recyclable-minded and environmentally regulated (RoHS-type compliance framing).

Practical takeaway for buyers: don’t only compare “PET” vs “nylon” as labels—compare grade formulation, thickness uniformity, adhesion system, color/gloss consistency, and whether the supplier validates performance on your high-speed equipment (Chen’an emphasizes its coating-line/equipment-making background and stricter internal standards).