Reactive extrusion matte agent, low gloss PC/ABS alloy and its preparation method
A technology of reactive extrusion and low gloss, which is applied in the field of PC/ABS alloy and its preparation, can solve problems such as poor gloss stability, large fluctuations in mechanical properties, and deterioration of chemical properties, and achieve excellent matteness, good mechanical properties, and reduced material cost effect
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Embodiment 1
[0049] (1) Prepare materials according to the following components and weight percentage content:
[0050] Low-density polyethylene resin 96%, dicumyl peroxide 4%;
[0051] (2) First heat the dicumyl peroxide and control the temperature at 60-65°C to make it liquid;
[0052] (3) Pass low-density polyethylene resin (weight average molecular weight 40,000) through a twin-screw extruder, add dicumyl peroxide in a side-feeding manner, melt and extrude at a temperature of 160-200°C, and cool and granulate , to obtain the reactive extrusion matte agent.
Embodiment 2
[0054] (1) Prepare materials according to the following components and weight percentage content:
[0055] Linear low density polyethylene resin 97.5%, benzoyl peroxide 2.5%;
[0056] (2) First heat the benzoyl peroxide and control the temperature at 60-70°C to make it liquid;
[0057](3) Pass linear low-density polyethylene resin (weight average molecular weight 250,000) through a twin-screw extruder, add benzoyl peroxide in a side-feeding manner, melt and extrude at a temperature of 200-250°C, and cool and granulate , to obtain the reactive extrusion matte agent.
Embodiment 3
[0059] (1) Prepare materials according to the following components and weight percentage content:
[0060] High-density polyethylene resin 99.5%, di-tert-butyl peroxide 0.5%;
[0061] (2) First heat the di-tert-butyl peroxide and control the temperature at 70-80°C to make it liquid;
[0062] (3) Pass high-density polyethylene resin (weight average molecular weight 300,000) through a twin-screw extruder, add ditertbutyl peroxide in a side-feeding manner, melt and extrude at a temperature of 180-240°C, and cool and granulate , to obtain the reactive extrusion matte agent.
[0063] Preparation of Low Gloss PC / ABS Alloy Material
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