Hot melt adhesive for steel plastic composite pipeline and production method of hot melt adhesive
A technology of steel-plastic composite and hot-melt adhesive, which is applied in the bonding between steel and plastic, and in the field of hot-melt adhesive for steel-plastic composite pipes. advanced questions
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[0015] Example 1: The weight percentage of raw material components contained in it are: 95.75% high-density polyethylene, 1% maleic anhydride, 0.05% peroxide, 3% acetone, and 0.2% antioxidant.
[0016] The above-mentioned production method of hot melt adhesive for steel-plastic composite pipes includes:
[0017] Step 1: Add high-density polyethylene and antioxidant to the mixer, heat the maleic anhydride and peroxide to melt at the same time, stir for 2-7 minutes, and control the temperature in the mixer to 35℃-40℃;
[0018] Step 2: The cooling material obtained in step 1 is pelletized with a medium-shear combined twin-screw extruder granulator at an extrusion temperature of 170-180°C and a die temperature of 190-200°C; the hot pelletizer extrudes the material through a strand The water cooling method is used to cut the pellets to ensure that there is no moisture on the surface of the pellets.
[0019] The plastic particles prepared by the above method are used to pass the steel belt ...
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