The consumer electronics industry's requirements for materials are becoming increasingly refined, and ethyl silicone oil has become a key material for improving product experience due to its micrometer level processing accuracy, electromagnetic shielding, and other characteristics. This article will analyze the innovative applications of ethyl silicone oil in the field of consumer electronics from four major scenarios.


1、 Folding screen phone: lubricant for flexible display materials
Folding screens need to maintain stable performance after 100000 bends, and ethyl silicone oil is achieved through the following technologies:
Nano coating: Ethyl silicone oil is combined with graphene to form a 10nm thick coating on the surface of OLED substrate by vapor deposition (CVD), which can reduce the friction coefficient from 0.3 to 0.05 and reduce bending damage.
Gel buffer layer: gel prepared by blending ethyl silicone oil and polyurethane, with adjustable modulus range (0.1-10MPa), which can absorb stress concentration during bending. Samsung Galaxy Z Fold4 test shows that the screen crease depth is reduced by 40% after using the gel.

2、 Wireless charging: an efficiency enhancing 'invisible conductor'
Wireless charging coils need to operate at high frequencies (>100kHz), and traditional ferrite cores suffer from issues such as high eddy current losses and temperature rise. The breakthrough of ethyl silicone oil based magnetic composite material is achieved through the following design:
Nano ferrite dispersion: By uniformly dispersing strontium ferrite (SrFe ₁₂ O ₁₉) nanoparticles (particle size<100nm) in ethyl silicone oil, the magnetic permeability can be increased to 200 (1MHz) while reducing the loss factor (tan δ) to 0.01.
3D printing molding: By curing ethyl silicone oil resin with light, complex magnetic core structures can be directly printed, reducing assembly processes. After adopting this technology, the charging efficiency of the Xiaomi 13 Ultra wireless charging module has increased from 75% to 85%.

3、 TWS Earphones: Balancing Waterproof and Acoustic Performance
TWS earphones need to meet both IPX7 waterproof and high-definition sound quality requirements, and ethyl silicone oil can be achieved through the following solution:
Microporous waterproof membrane: Ethyl silicone oil is combined with polytetrafluoroethylene (PTFE) to prepare a waterproof membrane with a pore size of 0.2 μ m through electrospinning. It can block water droplets (diameter>100 μ m) while allowing sound waves (wavelength>1cm) to pass through.
Acoustic damping adhesive: Ethyl silicone oil and calcium carbonate

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