Colored foaming material and preparation method thereof
A foaming material and colored technology, applied in the field of materials, can solve the problems of poor material cohesion/adhesive strength, uneven color, etc., achieve long-term color retention, reduce material waste, and widely used effects
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Embodiment 1
[0038] The invention discloses a colored foamed bead, which comprises a foamed bead and a color layer coated on the surface of the foamed bead, and the color layer is made by adding a colored pigment to a polymeric water-based resin. The schematic diagram of the foamed beads changing from white to colored beads is as follows figure 1 Shown, its preparation method is specifically:
[0039] S1: Add 5% polyisocyanate by weight to the water-based polymer resin, and then add pigments. The amount of pigments is added according to the color requirements to obtain a pre-mixed resin.
[0040] S2: Pre-dry the expanded beads with a diameter of 5mm at 40°C for 5 minutes; place the expanded beads in the coating equipment after pre-drying, and make the expanded beads boil on their surface under the state of rotary boiling Spray the pre-mixed resin evenly, so that the surface thickness of the foamed beads is 0.4mm, or increase the weight by 20-30%. Moisture is taken away to achieve the eff...
Embodiment 2
[0042] The invention discloses a colored foamed bead, which comprises a foamed bead and a color layer coated on the surface of the foamed bead, and the color layer is made by adding a colored pigment to a polymeric water-based resin. The schematic diagram of the foamed beads colored by white is as follows figure 1 Shown, its preparation method is specifically:
[0043] S1: add 0.1% of the weight of the prepolymer to the water-based polymer resin, and then add the pigment. The amount of the pigment is added according to the color requirement to obtain the pre-mixed resin.
[0044] S2: Choose foamed beads with a diameter of 3mm, pre-dry at 60°C for 10 minutes; place the pre-dried foamed beads in the coating equipment, make the foamed beads in a boiling state Spray the pre-mixed resin evenly on the surface, so that the surface thickness of the foamed beads is 0.05mm, or increase the weight by 5%. Take away to achieve a dry effect. This embodiment can be successfully applied to...
Embodiment 3
[0046] The invention discloses a colored foamed bead, which comprises a foamed bead and a color layer coated on the surface of the foamed bead, and the color layer is made by adding a colored pigment to a polymeric water-based resin. The schematic diagram of the foamed beads colored by white is as follows figure 1Shown, its preparation method is specifically:
[0047] S1: add 3% of the weight of the prepolymer to the water-based polymer resin, and then add the pigment. The amount of the pigment is added according to the color requirement to obtain the pre-mixed resin.
[0048] S2: Choose foamed beads with a diameter of 6mm, and pre-dry them at 50°C for 15 minutes; place the pre-dried foamed beads in the coating equipment, and make the foamed beads rotate on their surface Evenly spray the pre-mixed ones in the molten state, so that the surface thickness of the expanded beads is 0.8mm, or increase the weight by 50%; during the spraying process, use 20°C hot air for the second d...
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Abstract
Description
Claims
Application Information
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