HDPE/LDPE blending foaming material, its raw material forms, and counts by weight,
Total number of HDPE and LDPE 100 parts
Linking agent 0.5 part
Ac whipping agent 3-10 part
Zinc oxide 1-2 part
Stearic acid 0.5 part
Antioxidant 1010 0.1 part
Mineral filler 3-15 part,
Wherein, the weight ratio of HDPE and LDPE is 10:90-90:10,
Wherein, the melt flow rate (MFR) of selected HDPE is between 3-6g/10min, and the melt flow rate (MFR) of LDPE is between 2-3g/10min;
As preferably: linking agent is selected from dicumyl peroxide DCP or benzoyl peroxide BPO;
As preferably: mineral filler is selected from calcium carbonate or mica powder.
Present invention also offers a kind of preparation method of above-mentioned HDPE/LDPE blending foaming material, concrete operations are:
By the proportioning of each raw material,
(1) by the granulation of HDPE and LDPE blending extrusion, dry, obtain base-material,
As preferably: use twin screw extruder, carry out blended to HDPE and LDPE, good mixing effect, can extrude continuously, output is very large;
(2) base-material obtained in step (1) is plasticated in mill, plasticates in process, in base-material, add auxiliary agent, after auxiliary agent mixes with base-material, compound tablet is taken off, flattens while hot,
Post time: Aug-03-2022