810mm width 0.3mm thickness black TPT back sheet for solar panel

810mm width 0.3mm thickness black  TPT back sheet for solar panel

If you have special requirements about the size of TPT backsheet or you need other color TPT backsheet, please contact with us directly. We can provide you any size below 1100mm width TPT back sheet, if your quantity is suitable.

Introduction

Solar TPT back sheet is one of the key encapsulation materials which are applied in the PV module, composed of the Fluorine materials with excellent climate durability and PET with outstanding electrical insulation.

Solar module back sheet mainly consists of two categories: fluorine-contained and no fluorine-contained. Fluorine-contained back sheet include double-sides fluorine-contained (eg. TPT) and single-side fluorine-contained (eg. TPE); while no fluorine-contained back sheets are laminated by multilayers of PET by adhesives.

PV products are widely used in many industries because of its energy-saving, environment friendly and long life. Back sheet is the critical factor to ensure it’s more than 25-year working-life. The solar module back sheet is on the surface of the PV module. After bonding with EVA, it can block the air to make a vacuum seal for the core region of the module. In order to ensure that, the primary task of the seal is to be water-proof, air-proof and electricity-proof. So the solar module back sheet should have high electrical insulation, high weathering resistance, high adhesion and low water vapor permeability.

MARS ROCK solar module back sheet is containing fluorine on both sides, with innovative formula structure, outstanding combination property and high price-performance ratio.

Structure of TPT Backsheet

Application Advantages

1. High Weather Resistance

Through the double accelerated ageing tests of 85 pairs of 1000 hours, there will be non-delamination, non-cracking, non-foaming. There will be non-yellowing no embrittlement after ageing by artificial ultraviolet radiation exposure (QUVB) test 3000 hours.

2.High Security

Security grade has passed the flame-retardant UL 94-V2 flame-retardant grade, the UL flame spread index is less than 100, which effectively guarantees the module security features.

3.High Insulation

TUV Rhineland of PD≥1000VDC can avoid electrical arcing module

4.High Water Vapor Resistance

By infrared water vapor permeability tester, the water vapor permeability rates≤1.0g/m².d.

5.High Adhesion

After the nano-plasma treatment, the surface energy of high fluoride levels can last 45mN/m or more within six months.

6.High-end Match

Suitable for large-scale photovoltaic power plants with the crystalline silicon cells module package.

7.High Compatibility

Good compatibility comes from the bonding with the other packaging materials of module.

8.High Efficiency

For its double-sided adhesion, there is no need to distinguish the back sheet’s positive and negative when components packaging, which brings convenience for technicians.

9.High Flexibility

The adhesive data of the bone packaging for the package for the module and EVA could be adjusted as per the clients’ requirements.

Improvement Performance

1.High Scratching Resistance

The high scratching resistance get rid of these shortcomings of traditional coating, such as the surface of anti-scratch performance is poor, during the coating operation it is easy to get scratches or peel off, thus affecting the back sheet anti-ageing properties, etc.

2.High Reflectivity

Improves the light’s second reflection, enhances module output power, and increases the competitiveness of client module.

3.High Heat Dissipation

Improve power generation efficiency with the back sheet in accelerating heat dissipation.

Application shows

The production process of TPT back sheet

Factory Situation

Professional Packaging

Certificates

CE, FCC, RoHS certificates.