Photovoltaic module EVA cross-linking degree testing system

1、 Working principle of crosslinking degree testing system

• EVAIn the application process, due to heating, bonding and curing, part of EVA is crosslinked into gel. The solvent xylene is used to extract the uncrosslinked portion of the sample, allowing for the determination of crosslinking degree.

2、 Technical parameters of crosslinking degree testing system

• Model: KM-EVA-JLD1000
• Specification: 800x1550x2350mm
• Power supply: single-phase three wire AC 220 ± 10%, 50 ± 0.5Hz;
• Installation power: approximately 3.0KW.

3、 Sub item configuration of cross-linking degree testing system

• Ventilation cabinet:

lAdopting a three-stage exhaust structure to effectively discharge harmful gases.

lStreamlined handle, with a gap between the handle and the glass. Due to the rotating flow of air on the table, effective air intake is ensured from the surface.

lSet up anti drop pins for windows. In case the steel wire rope falls off and the glass window accidentally falls, the anti drop pin will catch it and prevent injury to personnel.

lThe glass window adopts tempered glass, so even if the glass is accidentally damaged or exploded, there will be no injury accidents.

lVentilation holes are installed on the upper part of the fume hood to allow air to enter even if the glass window is closed, avoiding the generation of greater negative pressure.

• Instrument:
• Large mouth round bottom flask and stopper. Connect with a grinding mouth or cork stopper. It is advisable to use 500mL for the determination of 1-2 samples; It is advisable to use 1000mL for the determination of 2-3 samples; If several but not more than 6 are used, a 2000mL flask is more suitable.
• Heating sleeve or constant temperature oil bath, requiring sufficient heat capacity to add boiling xylene (boiling point of 135-144 ° C).
• Reflux condenser tube, with a grinding mouth or connected to the flask with a cork. The grinding mouth size of the condenser tube should be the same as that of the round bottom flask, and the length should be appropriate.
• Bracket and clamp, used to secure the flask and condenser tube.
• Vacuum oven, equipped with a vacuum source capable of producing a vacuum degree of 0.87MPa.
• 120Stainless steel mesh
• A tray electronic analytical balance with an accuracy of 1/10000.
• Drying agent:
• Xylene A.R., analytical or chemically pure.
• Antioxidant