Foaming composite material and preparation method thereof
A technology of composite materials and foaming agents, applied in the field of 3D printing, can solve the problems of difficult to realize comprehensive control of material mechanical properties and light weight, large shrinkage rate of polymer products, and degradation of mechanical properties, and achieve the expansion of processing temperature range, Improve product appearance and reduce shrinkage
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[0040] (1) 100 parts by weight of PP, 12 parts of foaming functional masterbatch EN412 parts, 0.3 parts of antioxidant 1076 and 0.3 parts of DLTP are mixed, and the foaming composite material is obtained by blending and extruding granulation through a twin-screw extruder;
[0041] (2) The mixture is directly added to the 3D printing polymer production device, and the final product is obtained through melt extrusion, product molding, and cooling. The melt extrusion temperature was 210°C.
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