| abstract |
According to mass fraction screw extruder will be added after 10~50 parts of 60~70 parts of blocked polyurethane, 0.5~1 part of catalyst, 0~3 part of foaming agent, filler mixing in a kind of flexible composite 3D printing method based on blocked polyurethane；So that material is squeezed out from slit coventry type die head coventry after screw machine, is printed upon on separated type material, into baking oven；Oven temperature is controlled at 100 DEG C~180 DEG C, is bonded with base material when material gelation, using curing, cooling stripping, you can obtain flexible composite.This method can solve the problems, such as product safety caused by the problem of environmental pollution and dissolvent residual of MDF, TOL, MEK, THF equal solvent generated in current flexible composite production, and low energy consumption, dynamical automated production may be implemented. |