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Advanced Composite Insulator Silicone Rubber with Self-Healing Hydrophobicity

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Advanced Composite Insulator Silicone Rubber with Self-Healing Hydrophobicity

Composite Insulator Silicone Rubber revolutionizes power infrastructure through dual-phase reinforcement technology (fiberglass core + silicone matrix). Featuring class-leading HC1/HC2 hydrophobicity with self-cleaning molecular chains, this material prevents 97% of pollution flashover accidents (per IEC 62073). Certified for 750kV+ UHV systems with ≤0.02% annual aging rate, it combines mechanical resilience (≥300% elongation) with advanced UV resistance (10,000 hrs weatherability per ASTM G154).


Product Advantages

1. Structural Intelligence：Fiberglass-silicone synergy achieves 3X higher fracture toughness vs conventional ceramics.

2. Self-Restoring Surface：Dynamic hydrophobicity recovery within 48hrs after contamination (per STRI Guide 92/1).

3. Ultra-Lightweight：75% weight reduction compared to porcelain insulators (1.45-1.55g/cm³).

4. Multiphase Compatibility：Simultaneously optimizes CTI 400+ tracking resistance and 1A4.5 leakage marks.

5. Zero-Maintenance Design：20-year service life validated by 50,000-cycle mechanical fatigue tests.

Type number

HF-230A

HF-230B

HF-230C

HF-270

Shore A

60±3

60±3

60±3

60±3

Duro

180±20

180±20

160±20

180±20

Density(g/cm³)

1.45±0.05

1.45±0.05

1.5±0.05

1.55±0.05

Tensile (MPa)

≥4.5

≥4

≥4

≥4

Elongation(%)

≥270

≥230

≥180

≥300

Compression (%)

≤6

≤6

≤6

≤10

Tear (kN/m)

≥10

≥10

≥8

≥8

Rebound(%)

≥55

≥50

≥50

≥45

Flame Retardant

FV-0

FV-0

FV-1

FV-1

Breakdown (kV/mm)

≥22

≥20

≥15

≥15

Dielectric Constant

≤4.5

≤5

≤5

≤5

Volume Resistivity (Ω·cm)

≥1×10¹⁴

≥1×10¹⁴

≥1×10¹⁴

≥1×10¹⁴

Hydrophobicity

HC1

HC1

/

/


1. Smart grid system: Suspension composite insulators for 750kV UHV DC transmission lines.

2. New energy facilities: Salt spray resistant arrester sheds for offshore wind farms.

3. Rail transportation: Anti-icing insulation support components for high-speed rail contact networks.

4. Digital substation: Smart bushing integrated wireless temperature measurement module.

1. Material pretreatment: Use a twin-screw mixer to premix at 120℃ for 30 minutes to eliminate internal stress.

2. Molding optimization: Use in-mold plasma treatment technology to improve interface bonding strength ≥40%.

3. Post-vulcanization process: Step-by-step temperature increase (160℃→200℃) for 6 hours to eliminate free silicon.

Q: How does self-healing hydrophobicity work?

A: Methyl groups migrate to surface micro-cracks through thermal vibration, restoring contact angle >100° autonomously.


Q: Compatibility with IoT monitoring systems?

A: Embedded carbon nanotube sensors can be co-vulcanized for real-time strain/partial discharge detection.


Q: Performance in arctic conditions?

A：Certified for -60℃ operation with ice-phobic surface reducing 80% ice adhesion force.

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