Pressure sensitive adhesive protective film is an extremely important and wide-ranging product application in the field of pressure-sensitive adhesives in recent years. The pressure-sensitive adhesive protective film made of pressure-sensitive adhesive coated on the surface of P E or PVC film substrate can be widely applied to the surface of various high-gloss materials such as stainless steel plates, aluminum alloy decorative plates, signs and plexiglass. As the most important quality index of the pressure sensitive adhesive protective film, the protective film is required to be peeled off after being adhered to the surface of the protected object for a predetermined period of time, and the protective film adhesive layer is not transferred to the surface of the protected object, that is, the surface of the protected object is not Any adhesive residue and traces of contamination by the adhesive. For mirror stainless steel, the quality of the protective film is higher. When the protective film is torn off on the surface of the mirror steel, the surface gloss of the mirror steel should not change. In some cases, the protective film is also required to withstand high temperature and ultraviolet radiation. Pressure-sensitive adhesive protective film products can be roughly classified into three types: normal type, mid-range type and high-grade type according to their performance and application range. High-grade pressure-sensitive adhesive protective film products are represented by the ability to protect the surface of stainless steel mirrors. This type of protective film is required to be adhered to the surface of the mirror stainless steel with a finish of SK or higher. The surface of the mirror steel will not leave any pressure sensitive adhesive residue. Traces of misty pollution, while also being able to withstand the changes of summer hot and humid climates and strong solar ultraviolet radiation during the protection period.
In China, the quality of pressure-sensitive adhesive protective film products is generally between ordinary and mid-range levels. Therefore, the domestic demand for high-grade protective film products for mirror steel surface is still completely dependent on imports; with the rapid development of domestic economy, mirror stainless steel ( Including the color stainless steel industry, the industry is expanding, and the demand for high-grade pressure-sensitive adhesive protective film products is bound to increase. Therefore, in China, research on high-grade pressure-sensitive adhesive protective film products with long-lasting, heat-resistant and ultraviolet-resistant properties must have Great social and economic benefits.
The development of PUA type mirror stainless steel pressure sensitive adhesive protective film is based on the research of heat sensitive pressure sensitive adhesive for many years. It breaks through the traditional pressure sensitive adhesive formula design idea, and adopts the special regular crosslinked single polymer in the field of polymeric elastomer materials. Based on the principle of network structure, the pressure sensitive adhesive protective film product is prepared with its unique formula design.
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