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Method for preparing coating-free aesthetic resin with improved appearance

An aesthetic resin and spray-free technology, which is applied in the field of preparation of spray-free aesthetic resin, can solve the problem that the affinity between toner and substrate is difficult to improve, so as to improve processability, reduce weld lines and flow marks, and improve affinity. Harmonious effect

Active Publication Date: 2013-05-22
SHANGHAI KUMHO SUNNY PLASTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is relatively easy to improve the fluidity of materials, but it is difficult to improve the affinity of special effect toners and substrates

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A preparation method of a spray-free aesthetic resin for improving appearance, the method comprising the following steps:

[0025] (1) Prepare materials according to the following components and parts by weight:

[0026] Base resin 100;

[0027] Antioxidant 0.2;

[0028] lubricant 1;

[0029] Aluminum powder pigment 0.5;

[0030] Among them, the matrix resin is DuPont's PET530, the antioxidant is Irganox B900, the lubricant is ethylene-acrylic acid copolymer, the shape of the aluminum powder is silver dollar, and the particle size is 20 μm to 40 μm;

[0031] (2) Put the above-mentioned (1) raw materials into a high-speed mixer according to the formula and stir them, and after mixing evenly, send them into the twin-screw extruder through a metering device. Under the conveying, shearing and kneading process, the material is melted and compounded, and then extruded through the die, drawn, cooled, and pelletized to obtain the spray-free aesthetic resin with improved app...

Embodiment 2

[0033] A preparation method of a spray-free aesthetic resin for improving appearance, the method comprising the following steps:

[0034] (1) Prepare materials according to the following components and parts by weight:

[0035] Base resin 100;

[0036] Antioxidant 0.2;

[0037] lubricant 1;

[0038] Aluminum powder pigment 0.5;

[0039] (2) Put the above-mentioned (1) raw materials into a high-speed mixer according to the formula and stir them, and after mixing evenly, send them into the twin-screw extruder through a metering device. Under the conveying, shearing and kneading process, the materials are melted and compounded, and then extruded through a die equipped with an ultrasonic device, drawn, cooled, and pelletized to obtain a spray-free aesthetic resin with improved appearance.

[0040] Among them, the matrix resin is PET530 of DuPont;

[0041] The antioxidant is Irganox B900;

[0042] The lubricant is ethylene-acrylic acid copolymer;

[0043] The shape of the al...

Embodiment 3

[0046] A preparation method of a spray-free aesthetic resin for improving appearance, the method comprising the following steps:

[0047] (1) Prepare materials according to the following components and parts by weight:

[0048] Base resin 100;

[0049] Antioxidant 0.2;

[0050] lubricant 1;

[0051] Aluminum powder pigment 0.5;

[0052] (2) Put the above-mentioned (1) raw materials into a high-speed mixer according to the formula and stir them, and after mixing evenly, send them into the twin-screw extruder through a metering device. Under the conveying, shearing and kneading process, the materials are melted and compounded, and then extruded through a die equipped with an ultrasonic device, drawn, cooled, and pelletized to obtain a spray-free aesthetic resin with improved appearance.

[0053] Among them, the matrix resin is PET530 of DuPont;

[0054] The antioxidant is Irganox B900;

[0055] The lubricant is ethylene-acrylic acid copolymer;

[0056] The shape of the al...

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Abstract

A method for preparing a coating-free aesthetic resin with improved appearance comprises the following steps of: (1) blending the matrix resin, an antioxidant, a lubricant and an aluminum powder pigment together in a weight ratio of 100: (0.1-1): (0.5-2): (0.1-2); (2) stirring and mixing the raw materials in a high-speed mixer and then feeding the mixture into a double-screw extruder, melting and compounding the mixture under conveying, shearing and mixing of the screws, and then performing extrusion, bar drawing, cooling and grain-sized dicing through an opening mold assembled with an ultrasonic device, thereby obtaining the coating-free aesthetic resin with improved appearance. Compared with the prior art, the ultrasonic extrusion method is employed so that the compatibility of the polyester matrix resin with the aluminum powder is improved and the processability of the matrix resin is improved; as a result, weld lines and flow marks of the aesthetic resin formed in the injection molding process are greatly reduced. The method provided by the invention provides technical support for replacing the traditional painting proposal by the green environment-friendly aesthetic resin.

Description

technical field [0001] The invention belongs to the field of resin preparation and relates to a preparation method of a spray-free aesthetic resin with improved appearance. Background technique [0002] As an emerging technology, spray-free aesthetic resins have been used more and more widely. From daily necessities packaging such as cosmetic casings and shampoo bottle caps, to various home appliances such as air conditioners, washing machines and refrigerators, aesthetic resins can be seen. . As a one-time molding appearance solution, the spray-free aesthetic resin not only brings a beautiful appearance to the product, but also reduces environmental pollution and energy consumption. Because of such outstanding features, many excellent product designers have added aesthetic resin as a new fashion element to the product when designing new products. [0003] However, compared with traditional appearance solutions such as spray painting and electroplating, spray-free aestheti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29B9/06
Inventor 朱亚明周霆罗明华辛敏琦
Owner SHANGHAI KUMHO SUNNY PLASTICS
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