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Spray-free ABS composition with special aesthetic effect, preparation method and application thereof

A special effect powder, spray-free technology, applied in the field of polymer materials, can solve the problems of uneven distribution of special effect powder, unstable flow rate, poor compatibility, etc., to improve the market application range, obvious metal texture, improve shear resistance cut effect

Active Publication Date: 2017-12-01
TIANJIN KINGFA NEW MATERIAL
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

By dispersing the special effect powder into the matrix resin, the special effect powder is connected to each other to form a continuous special effect film, which covers the base material and presents a special effect texture, although the special effect powder is directly added to the resin base. , can achieve a special glossy effect, but the compatibility between the matrix resin and the special effect powder is poor. Under the strong pressure and strong shear conditions of extrusion or injection molding, it is difficult for the special effect powder and the matrix resin material to achieve the same fluidity, especially It is a product with a complex structure. The special effect powder oriented along the flow direction occurs and the melt flow turns, the flow velocity is unstable, and the melt merges, etc., causing the special effect powder to be unevenly distributed in the melt and easy to form on the surface of the product. Defects such as flow marks and weld lines seriously prevent and limit the market promotion and application of this type of spray-free material

Method used

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  • Spray-free ABS composition with special aesthetic effect, preparation method and application thereof
  • Spray-free ABS composition with special aesthetic effect, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-6

[0044] Example 1-6 Preparation of polymer-coated special effect powder microspheres:

[0045] According to the formula in Table 1, firstly, add anti-oxidation and corrosion inhibitor to the water-based polymer dispersion at room temperature, stir and disperse for 15 minutes to obtain the dispersion; while stirring, slowly add special effect powder, or water-based Special effect powder slurry, then add curing agent while stirring, and continue to stir for 30-120 minutes, so that the special effect powder is fully dispersed and covered by the dispersion liquid, and finally a composite dispersion liquid of polymer-coated special effect powder is obtained; The composite dispersion liquid is spray-dried to obtain polymer-coated special-effect powder microspheres. The temperature of the air inlet during the spray-drying process is 150-300°C, and the temperature of the air outlet is 50-130°C.

Embodiment 1

[0048]In Example 1: the water-based polymer dispersion is a polyurethane emulsion, and its solid content is 10wt%; the metal powder is a surface-treated flake aluminum powder, and the content of the Al element in the aluminum powder is 60wt%, containing Zn and Sn at the same time; The particle size is 100μm; the anti-oxidation and corrosion inhibitor is pyrogallic acid; the curing agent is polyisocyanate.

Embodiment 2

[0049] In Example 2: the water-based polymer dispersion is an acrylate emulsion, and its solid content is 60wt%; the metal powder is a surface-treated flake copper powder, and the content of the Cu element in the copper powder is 70wt%, containing Zn and Sn ; The particle size is 5 μm; the anti-oxidant corrosion inhibitor is benzotriazole; the curing agent is polycarbodiimide.

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Abstract

The invention discloses a spray-free ABS composition with special aesthetic effects and its preparation method and application, comprising the following components: ABS resin 70-98wt%; polymer-coated special effect powder microspheres 1-25wt%; Compatibilizer 0-10wt%; Antioxidant 0.1-1wt%; Processing aid 0.1-0.5wt%; The present invention disperses the special effect powder into microspheres with water-based polymer dispersion and then disperses them into ABS resin Among them, it can significantly improve the compatibility of special effect powder and ABS resin, eliminate the flow mark formed on the surface of the product during extrusion or injection molding, and reduce the weld line. The prepared spray-free ABS composition has a more obvious metallic texture Special aesthetic effects such as , pearlescent flashing, etc., have greatly improved the market application range of spray-free materials.

Description

[0001] The invention belongs to the field of polymer materials, and in particular relates to a spray-free ABS composition with special aesthetic effects, a preparation method and application thereof. Background technique [0002] As people pay more and more attention to environmental issues, spray-free material products are gradually showing their competitiveness. Spray-free aesthetic resins can replicate the bright and colorful hues produced by spray paint, pearlescent, glitter effects, metallic luster and texture, etc. Special effects, so as to meet the diverse and differentiated customer needs, and can truly achieve energy saving and emission reduction in the production process, and can be widely used in handicrafts, toys, home appliances, automobiles, electronic products, sporting goods and office supplies and other fields. [0003] At present, the more common preparation method of spray-free resin is to add metal powder, pearl powder and other effect powders with special c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L55/02C08K9/10C08K3/08C08K3/36
Inventor 宁方林陈平绪胡纲叶南飚孙雅杰高权星王大中
Owner TIANJIN KINGFA NEW MATERIAL
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