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Views: 0 Author: Site Editor Publish Time: 2025-05-12 Origin: Site
1.Challenges of heat dissipation in electronic equipment and the core value of silicone potting compounds
With the technological iterations in 5G communications, new energy vehicles and aerospace, the power density of electronic components continues to rise, and operating temperatures exceeding 200°C have become the norm. Silicone potting compound has become the preferred material for high-reliability equipment packaging due to its high thermal conductivity, wide temperature range stability and repairability.
2.In-depth analysis of the advantages of silicone potting technology
(1) Excellent thermal conductivity
Through the gradient distribution design of fillers such as nano-alumina (Al₂O₃) and boron nitride (BN), the thermal conductivity of Dubang silicone potting glue can reach 3W/(m·K), which is 300% higher than traditional materials.
(2) Extreme environment adaptability
Temperature range: -50℃~150℃ (short-term tolerance 200℃)
Weather resistance: passed 1000 hours double 85 test (85℃/85%RH)
Shock resistance: meets MIL-STD-883H mechanical shock standard
(3) Repairability and environmental protection
Surgical repair: partial damage can be opened and re-sealed
Zero VOC release: Passed RoHS 2.0 and REACH certification
3.Performance comparison of epoxy/polyurethane materials
Key Metrics | Silicone potting compound | Epoxy resin | Polyurethane |
Thermal efficiency | 3W/(m·K) | ≤2.5W/(m·K) | ≤0.8W/(m·K) |
High temperature stability | 200℃ continuous working | Easy to yellow at 150℃ | 100℃ softening |
Dielectric strength (kV/mm) | ≥30 | ≥25 | ≥15 |
Comprehensive cost | Reduce operation and maintenance costs by 30% | High maintenance costs | Low initial cost/high failure rate |
4. Typical application scenarios of silicone potting compound
(1) New energy vehicle three-electric system
Battery module packaging: Flame retardant grade UL94 V-0, thermal conductivity ≥ 2.0W/(m·K)
Motor controller: Corona resistance > 1000 hours (IEC 60343 standard)
(2) 5G communication base station
Millimeter wave antenna array package: dielectric constant ≤ 3.2 (@10GHz)
Salt spray resistance: passed 2000 hours ASTM B117 test
(3) Aerospace Electronics
Low outgassing properties: Total mass loss (TML) < 0.1% (ASTM E595)
Radiation resistance: withstand 100krad total ionizing dose
5. Selection guidance and technical support
Three-step selection method:
Test conditions: record equipment peak temperature, vibration frequency, and medium contact conditions
Set parameters: match Dubon product models according to the table below
Test plan: apply for free samples for simulation testing
Conclusion
Silicone potting compound is becoming the ultimate solution for thermal management of high-density electronic devices. Through continuous R&D investment, Dubon Technology has provided customized potting solutions for more than 300 companies, covering the fields of automobile, communication, military, etc. Welcome to visit the official website to obtain the "Silicone Potting Compound Technology White Paper" or apply for free samples to verify the performance.
