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A kind of aesthetic resin composition with improved appearance and preparation method thereof

A technology of aesthetic resin and composition, which is applied in the field of aesthetic resin composition for improving appearance and its preparation, can solve the problems of matrix resin processability limitation, narrow application range, etc., achieve simple implementation, improve effect, improve flow marks and welding line effect

Active Publication Date: 2017-11-24
SHANGHAI KUMHO SUNNY PLASTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method can improve the flow mark weld line, but it has strict restrictions on the processability of the matrix resin, and the application range is narrow

Method used

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  • A kind of aesthetic resin composition with improved appearance and preparation method thereof
  • A kind of aesthetic resin composition with improved appearance and preparation method thereof
  • A kind of aesthetic resin composition with improved appearance and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] This embodiment relates to a resin composition for improving the appearance of aesthetic plastics and a preparation method thereof. The preparation method includes the following steps:

[0043] (1) Mixing and dispersing the metal pigment into the prepolymer of epoxy resin; coating the mixture to form a film, curing and granulating; the content of the effect pigment after curing is 4.0%. The initial degradation temperature of TGA test is 295°C.

[0044] (2) Prepare materials according to the following components and parts by weight:

[0045] Base resin 90,

[0046] Lubricant 2.0,

[0047] Antioxidant 0.3,

[0048] UV absorber 0.5,

[0049] The thermosetting effect pigment masterbatch 10 prepared in step (1).

[0050] (3) Put the above-mentioned (2) raw materials in a high-speed mixer according to the formula and stir them. After mixing evenly, send them into the twin-screw extruder through the metering device. Under the conditions of transportation, shearing and mixi...

Embodiment 2

[0053] This embodiment relates to a resin composition for improving the appearance of aesthetic plastics and a preparation method thereof. The preparation method includes the following steps:

[0054] (1) Mix and disperse the pearlescent pigment into the prepolymer of the epoxy resin; coat the mixture to form a film and then solidify and granulate; the content of the cured effect pigment is 8.0%. The initial degradation temperature of TGA test is 292°C.

[0055] (2) Prepare materials according to the following components and parts by weight:

[0056] Base resin 90,

[0057] Lubricant 2.0,

[0058] Antioxidant 0.3,

[0059] The thermosetting effect pigment masterbatch 10 prepared in step (1).

[0060] (3) Put the above-mentioned (2) raw materials in a high-speed mixer according to the formula and stir them. After mixing evenly, send them into the twin-screw extruder through the metering device. Under the conveying, shearing and mixing of materials, the materials are melted...

Embodiment 3

[0063] This embodiment relates to a resin composition for improving the appearance of aesthetic plastics and a preparation method thereof. The preparation method includes the following steps:

[0064] (1) Mix and disperse the pearlescent pigment into the prepolymer of the epoxy resin; coat the mixture to form a film and then solidify and granulate; the content of the cured effect pigment is 8.0%. The initial degradation temperature of TGA test is 290°C.

[0065] (2) Prepare materials according to the following components and parts by weight:

[0066] Base resin 90,

[0067] Lubricant 2.0,

[0068] Antioxidant 0.3,

[0069] The thermosetting effect pigment masterbatch 20 prepared in step (1).

[0070] (3) Put the above-mentioned (2) raw materials in a high-speed mixer according to the formula and stir them. After mixing evenly, send them into the twin-screw extruder through the metering device. Under the conveying, shearing and mixing of materials, the materials are melted...

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Abstract

The invention relates to an aesthetic resin composition for improving appearance and a preparation method thereof, which is made of the following components and raw materials in parts by weight: matrix resin 70-90, lubricant 0.1-4.0, antioxidant 0.1-1.0, additive 0 ~5.0, thermosetting effect pigment masterbatch 10~30. Compared with the prior art, after the thermosetting resin and the effect pigment are mixed and cured in the present invention, the thermosetting resin has a covering effect on the effect pigment. Retain the texture of toner under the original particle size, so as to improve flow marks and weld lines with high surface quality. In addition, the cross-linked resin has a protective effect on the toner, which can improve the structure damage of the effect pigment during processing and improve the effect.

Description

technical field [0001] The invention relates to a resin composition and a preparation method thereof, in particular to an aesthetic resin composition with improved appearance and a preparation method thereof. Background technique [0002] Aesthetic plastics are achieved by adding effect pigments to polymer resins. The effect pigments mentioned here refer to special pigments with a certain length-to-diameter ratio and unique polyhedral structure. The most common types of such pigments are metallic pigments and pearlescent pigments. . Due to the special microscopic structure, these pigments have special optical effects, giving the polymer resin a metallic effect and a pearlescent effect. [0003] The introduction of environmental protection policies has made aesthetic resins a research hotspot. Special visual effects can be easily obtained by adding effect pigments, but aesthetic resins are still not applied on a large scale. This is because the effect pigments encounter thin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L55/02C08L33/12C08L69/00C08L23/00C08L25/04C08L33/00C08L67/00C08L71/12C08J3/22
Inventor 刘星周霆罗明华辛敏琦
Owner SHANGHAI KUMHO SUNNY PLASTICS
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