Industry sharing: A degradable environmental protection non-silicon pressure sensitive adhesive tape preparation method

Pressure Sensitive Adhesive Tape Preparation Method

S1, first take the biodegradable extract of the sensitive adhesive resin  30% 72%, biodegradable oligomer polyfunctional degree 1. 0% , crosslinking agent 0. 22% 6% 2% and thermal initiator or light initiator  0. 2% 2% , just the right amount of water or solvent, mix and stir 1  5 hours;

S2. Then, the biodegradable base film is wound on a raw material frame 310, and the transparent plastic film is wound on another raw material frame 310, and both are bypassed at the bottom of composite roll 321. The biodegradable base film and transparent plastic thin film are pressed together through composite roll 321, and then stretched to the receiving frame 410 for winding;

S3. Then pour the mixed non-silicon pressure-sensitive glue in S1 into storage bucket 100 in the tape preparation device, and cover the bucket cover 102 and gas storage box 210;

S4, then start the pumping motor 220 and drive impeller 221 to rotate to the gas storage box 210 to supplement and compress the air, because the glue in the storage bucket 100 is released, the top of the bucket will be produced negative pressure, by releasing the air in the gas storage box 210 into the storage bucket 100, in order to adjust the internal pressure of the bucket, so that the glue can continue to release. And help to control the speed and amount of glue release;

S5, start the receiving motor 420 rewinding the biodegradable base film and transparent plastic film, at the same time release the non-silicon pressure-sensitive glue in the storage bucket 100 and fall into the two films, and then extruded the glue between the two films to form a non-silicon pressure sensitive adhesive tape;

S6. Then start the servo motor 233 to drive the CAM 232 to rotate every 10 degrees to release the air in the gas storage box 210 into the material storage barrel 100 to relieve the negative pressure;

S7, to be coated with glue film conveying to drying box 600, changed early start drying device 630 half line of the infrared lamp, 631 to 10  drying temperature of 100 ℃, and the other half infrared tubes from 631 to 100  curing temperature 200 ℃, within the after drying box 600 on membrane drying glue curing;

S8. Until the drying and curing non-silicon pressure-sensitive adhesive glue film are recoiled on the receiving rack 410, remove the non-silicon pressure-sensitive adhesive tape after rewinding.