Preparation method of pressure-sensitive structure adhesive tape for mobile phone key

• Main Authors: ZHANG SHIMING, MA SHASHA, ZHU DONGHAI, XU XIANCHENG, LIU HONGLE
• Format: Patent
• Language: Chinese; English
• Published: 14.09.2011
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; CHEMISTRY; COMPOSITIONS BASED THEREON; DYES; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; POLISHES; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF MATERIALS AS ADHESIVES

The invention discloses a preparation method of a pressure-sensitive structure adhesive tape for a mobile phone key. The preparation method is characterized by comprising the following steps of: mixing an alkenyl monomer, an active monomer, a modifier BX50, benzoyl peroxide, nano-zinc oxide and toluene, reacting and adding ethyl acetate to obtain a polyacrylate pressure sensitive adhesive; and uniformly coating the polyacrylate pressure sensitive adhesive on a film, baking to remove a solvent, compounding with a polyester release film, rolling and cutting into different sizes as required to obtain the pressure-sensitive structure adhesive tape for the mobile phone key. Due to the adoption of the preparation method, the obtained adhesive tape has favorable high/low-temperature impact resistance and high stripping intensity, does not change color at high temperature, does not release corrosive gas after being used for a long time, is mainly used for sticking and fixing a metal dome of the mobile phone key, and