Reversible thermochromatic ABS (acrylonitrile butadiene styrene) composite and preparation method and application to 3D (three-dimensional) printing
A composite material and thermochromic technology, applied in the field of materials, can solve the problems of easy shrinkage and deformation of ABS materials, small shrinkage, etc., and achieve the effects of small material shrinkage, reversible discoloration process, and stability
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Embodiment 1
[0039] A reversible thermochromic ABS composite material consisting of the following components:
[0040]
[0041] The color masterbatch wherein is made up of the composition of following parts by weight:
[0042] ABS resin: 65 parts
[0043] TAS-2A: 5 parts
[0044] Reversible thermochromic powder: 30 parts;
[0045] Among them, the color changing temperature of the color-changing powder is 33°C, and its color changes from purple to blue when it reaches 33°C from room temperature.
[0046] The preparation method of above-mentioned composite material comprises the following steps:
[0047] Mix the ABS resin, dispersant 2 and colorant evenly to obtain a color masterbatch; stir the ABS resin, color masterbatch, dispersant 1 and inorganic filler at 50-200rpm for 5-25min to make it evenly mixed. The material is passed through a twin-screw extruder, granulated for the second time with the aid of water cooling, and then a single-screw extruder is used to form a wire to obtain...
Embodiment 2
[0050] A reversible thermochromic ABS composite material consisting of the following components:
[0051]
[0052] The color masterbatch wherein is made up of the composition of following parts by weight:
[0053] ABS resin: 70 parts
[0054] EBS: 10 copies
[0055] Reversible thermochromic powder: 20 parts;
[0056] Among them, there are two kinds of color-changing powders, one is the color-changing temperature of 33°C, and the color changes from blue to colorless when the room temperature reaches 33°C; Color changed from colorless to orange. Both color changing powders are of equal quality.
[0057] The preparation method is the same as in Example 1, and the shrinkage rate and tensile strength of the prepared material are shown in Table 1.
[0058] The wire prepared in this example is colorless at 33-55°C, blue at temperatures below 33°C, and orange at temperatures above 55°C, and the coloring effect is reversible.
Embodiment 3
[0060] A reversible thermochromic ABS composite material consisting of the following components:
[0061]
[0062] The color masterbatch wherein is made up of the composition of following parts by weight:
[0063] ABS resin: 50 parts
[0064] White oil: 10 parts
[0065] Reversible thermochromic powder: 40 parts;
[0066] The color changing temperature of the color-changing powder is 45°C, and its color changes from purple to red when it reaches 45°C from room temperature.
[0067] The preparation method is the same as in Example 1, and the shrinkage rate and tensile strength of the prepared material are shown in Table 1.
[0068] The wire rod prepared in this example can produce a reversible effect from purple to red at 45°C.
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