Adhesive tape used for solar cell assembly and preparation method thereof

Abstract

The invention relates to a double-sided adhesive tape, and specifically relates to the double-sided adhesive tape used for a solar cell assembly and a preparation method thereof. The double-sided adhesive tape comprises a substrate, an adhesive, a backlining and backlining glue, wherein the adhesive mainly comprises the following components of, by weight, 0.5-1 part of ammonium sulfate, 5-10 parts of methyl methacrylate, 55-65 parts of butyl acrylate, 20-30 parts of hydroxymethyl acrylamide, 1-2 parts of a composite emulsifier, 60-70 parts of a tackifying resin, 0.2-0.8 part of acrylic acid, 1-2 parts of hydroethyl methacrylate, 1-1.5 parts of 2-acrylamide-2-methylpro panesulfonic acid and 1-3 parts of 3-(methacryloxy)propyltrimethoxysilane. The preparation method comprises the steps of firstly pre-preparing a high-strength organosilicone and acrylate co-polymeric emulsion pressure-sensitive adhesive; and then performing operations of double roll reverse coating, drying, compositing, transferring and the like with a B-50 multifunctional coating machine, wherein both the font side and the back side of the backlining of the substrate are already coated by a layer of low-adhesivity backlining glue.

Description

technical field [0001] The invention relates to a double-sided adhesive tape, in particular to a double-sided adhesive tape used for packaging solar cell modules and a manufacturing method thereof. Background technique [0002] Solar photovoltaic power is currently the most economical, cleanest and most environmentally friendly sustainable energy available. Solar cells are the core components of solar photovoltaic systems. Due to physical and chemical defects such as thinness, brittleness and easy oxidation of solar cells, long-term exposure to high humidity, high temperature, low temperature, strong ultraviolet rays, ozone, microorganisms, wind and rain and other natural conditions can easily cause water permanent damage, and it is difficult to application. Therefore, in order to realize the industrialized application of solar power generation, especially to achieve a service life of more than 20 years, protective packaging is required to form a solar cell module with sta...

AI Technical Summary

Problems solved by technology

However, during the use of silicone adhesives, there are some problems, such as easy to produce bubbles and bubbling problems during the production and use of silicone adhesives, which affect the sealing performance of the adhesive; slow curing speed and long time; and yellowing during storage , affect the application effect, etc.