Molding Process
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High haze of transparent blends
Problem Phenomenon
The light transmittance and haze of the product do not meet transparent part standards
Cause Analysis
The refractive indices of the two components of the blend do not match, causing light scattering; the dispersed phase size is 0.4-0.7μm (visible light wavelength range)
Solution
Match the refractive indices of the two components so that the difference is <0.01; control the dispersed phase size to be much smaller than the light wavelength (<0.1μm) or much larger (>5μm); reduce defects at the phase interface
Key Takeaway
The core of transparent blending lies in refractive index matching and phase size control
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