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What are the most common issues with the durability of plastic components?
Plastic components are widely used in various industries due to their versatility and cost-effectiveness. However, their durability can be compromised by several common issues.
1. UV Degradation: Prolonged exposure to sunlight breaks down polymer chains, causing brittleness and discoloration. This is especially problematic for outdoor applications.
2. Chemical Attack: Plastics can weaken or dissolve when exposed to harsh chemicals, leading to cracks or deformations.
3. Material Fatigue: Repeated stress or bending can cause micro-cracks, eventually leading to component failure.
4. Thermal Expansion: Temperature fluctuations cause plastics to expand and contract, resulting in warping or loss of structural integrity.
5. Moisture Absorption: Some plastics absorb water, which can reduce mechanical strength and cause dimensional instability.
To enhance durability, manufacturers often use additives like UV stabilizers, reinforce plastics with fibers, or select higher-grade polymers. Understanding these issues helps in designing longer-lasting plastic components.
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