| abstract |
The invention discloses a functional master batch formulation of a large-width polyether ether ketone sheet and a preparation method for the sheet. 8-10 parts of nucleating agent, add PEEK pure material or PEEK modified material, functional masterbatch and mix, after mixing, add it to the vacuum drying mixer for stirring, and then extrude the material, the extruded material enters the mold, and the solution is maintained under pressure for two times. After a few minutes, the mold is pulled as a whole on the hot-pressing setting table, and the temperature is automatically lowered to room temperature, and then placed in an annealing furnace for annealing to eliminate internal stress. The raw materials and processes produced are uniform and flat, the products are qualified, the crystallization of PEEK is uniform, and the annealing time is short, which avoids uneven thickness, warping, and even collapse. In addition, the color of PEEK is uniform, and the yield is also high. substantial improvement. |