Titanium dioxide masterbatch and preparation method thereof
A technology of titanium dioxide and color masterbatch, which is applied in the field of plastic coloring, can solve problems such as poor compatibility, and achieve the effects of good compatibility, good dispersibility, and strong coloring ability
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[0024] The preparation method of a kind of titanium dioxide masterbatch provided by the present invention comprises the following steps:
[0025] (1) Raw material preparation: carrier resin 20-60%, titanium dioxide 30-70%, dispersant 1-6%, antioxidant 1-4%;
[0026] (2) Mixing: Utilize a high mixer to mix the dispersant and antioxidant uniformly in proportion to obtain mixed powder;
[0027] (3) Extrusion granulation: use an extruder to mix the carrier resin, titanium dioxide and the mixed powder obtained in step (2) according to the proportion through a weight loss scale, and then extrude granulation. The screw speed of the extruder is 280-300 rpm, and the temperature of the extruder is set at 200°C-295°C.
[0028] The antioxidant used in the embodiment is a mixture of antioxidant 1010 and antioxidant 168, wherein the weight ratio of antioxidant 1010 to antioxidant 168 is 1:1.
Embodiment 1
[0031] The titanium dioxide pink masterbatch and the preparation method thereof provided by the present invention, the titanium dioxide pink masterbatch comprises the following components: 40% of PET carrier resin, 50% of rutile titanium dioxide, 6% of polyethylene wax, and 4% of antioxidant . The preparation method of titanium dioxide pink masterbatch is to automatically feed the material according to the proportion through the weight loss scale. The extruded strips are water-cooled, dried, pelletized and packaged to obtain titanium dioxide pink masterbatch.
Embodiment 2
[0033] The invention provides titanium dioxide pink masterbatch and a preparation method thereof. The titanium dioxide masterbatch includes the following components: 30% of PET carrier resin, 60% of rutile titanium dioxide, 6% of polyethylene wax and 4% of antioxidant. The preparation method of titanium dioxide pink masterbatch is to automatically feed the material according to the proportion through the weight loss scale. The finished strips are water-cooled, dried, pelletized, and packaged to obtain titanium dioxide pink masterbatches.
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