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Photovoltaic Model · TPP1

TPP1 Solar Backsheet

The TPP1 solar backsheet is a high-performance product specifically developed for 1500V high-voltage photovoltaic systems. Utilizing innovative film composite technology and self-developed materials, it provides comprehensive long-term protection for PV modules. Backed by years of backsheet R&D experience and strict quality control systems, this product maintains excellent performance in various harsh environments.

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Specification & details

Innovative Material and Process Design

The TPP1 backsheet features a precision-engineered multi-layer composite structure:

1. Weather-resistant layer using high-quality PVF fluoropolymer film

  • Thickness precisely controlled within 125±5μm range
  • Incorporates high-efficiency UV absorbers and stabilizers
  • Specially treated surface enhances interface bonding
  • Certified through IEC 62788-2 standard testing

2. Bonding layer with self-developed PO film

  • Manufactured by three-layer co-extrusion for uniform, dense structure
  • Melting point ≥160°C ensures high-temperature stability
  • Reflectivity ≥85% improves module power generation efficiency
  • Special formulation enhances long-term weather resistance

Outstanding High-Voltage System Compatibility

1. Electrical insulation performance

  • Volume resistivity >1×10¹⁶Ω·cm
  • Partial discharge <5pC
  • Breakdown voltage >15kV
  • Full certification for 1500V systems

2. Environmental durability

  • UV aging resistance >150kWh/m²
  • Stable performance after 3000-hour damp heat aging
  • No abnormalities after 200 thermal cycles (-40°C~85°C)
  • Excellent resistance to acids, alkalis, solvents and salt spray

Superior Process Compatibility

1. Module encapsulation performance

  • Lamination bubble area <0.5%
  • EVA interface bonding strength >60N/cm
  • Yellowing index ΔYI<2
  • Thermal shrinkage <1.5%

2. Mechanical reliability

  • Initial tensile strength ≥100MPa
  • Elongation at break >120%
  • Interlayer peel strength >6N/mm
  • Puncture resistance meets stringent requirements

Rigorous Quality Control System

Each production batch undergoes

  • Comprehensive raw material inspection
  • Monitoring of key production parameters
  • 100% finished product appearance and performance inspection
  • Regular sampling for accelerated aging tests
  • Complete quality traceability records

Professional Application Solutions

Specially recommended for

  • 1500V high-voltage PV systems
  • Utility-scale solar power plant projects
  • High-reliability module requirements
  • PV projects in harsh environments
  • Special applications like double-glass modules
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