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Spray-free modified polypropylene material with paint brightness and silver metal texture

A polypropylene material and metal texture technology, applied in the field of polypropylene materials, can solve the problems of unsatisfactory paint gloss and metal texture, affecting the density of polypropylene, etc., to achieve good paint gloss and metal texture, similar appearance effect, and free of The effect of removing cumbersome operations

Active Publication Date: 2014-02-05
TIANJIN MEIYA CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The above background technologies all use aluminum powder as an effect pigment to make the modified polypropylene have a metallic texture, and the aluminum powder used is all flake aluminum powder, but the flake aluminum powder will affect the effect due to its anisotropy in shape. The density of the modified polypropylene is macroscopically manifested by the appearance defect of tiger skin pattern in the product, and the paint luster and metal texture of the product are not ideal

Method used

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  • Spray-free modified polypropylene material with paint brightness and silver metal texture
  • Spray-free modified polypropylene material with paint brightness and silver metal texture
  • Spray-free modified polypropylene material with paint brightness and silver metal texture

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Weigh polypropylene (Rockwell hardness 90R-scale, melt index 40g / 10min, tensile strength 35Mpa), ethylene-octene copolymer, spherical aluminum powder (40 mesh) and additives (stearin Zinc acid, antioxidant 3114 and anti-ultraviolet agent are mixed in a mass ratio of 3:2:1), mixed uniformly in a high-speed mixer, and then the blend is kneaded in a twin-screw extruder. The temperature of each zone of the twin-screw extruder was controlled at 190-210°C, and the rotational speed of the twin-screw extruder was 600r / min; extruded and granulated, and the experimental material No. 1 was finally obtained.

Embodiment 2

[0027] Weigh polypropylene (Rockwell hardness 100R-scale, melt index 50g / 10min, tensile strength 45Mpa), ethylene-octene copolymer, spherical aluminum powder (40 mesh) and additives (stearic acid) according to the formula in Table 1. Zinc, antioxidant 3114 and anti-ultraviolet agent are mixed in a mass ratio of 3:2:1), mixed uniformly in a high-speed mixer, and then the blend is kneaded in a twin-screw extruder. The temperature of each zone of the twin-screw extruder was controlled at 190-210°C, and the rotational speed of the twin-screw extruder was 600r / min; extruded and granulated, and the experimental material No. 2 was finally obtained.

Embodiment 3

[0029] Weigh polypropylene (Rockwell hardness 100R-scale, melt index 50g / 10min, tensile strength 45Mpa), ethylene-octene copolymer, spherical aluminum powder (40 mesh) and additives (stearic acid) according to the formula in Table 1. Zinc, antioxidant 3114 and anti-ultraviolet agent are mixed in a mass ratio of 3:2:1), mixed uniformly in a high-speed mixer, and then the blend is kneaded in a twin-screw extruder. The temperature of each zone of the twin-screw extruder was controlled at 190-210°C, and the rotational speed of the twin-screw extruder was 600r / min; extruded and granulated, and finally experimental material No. 3 was obtained.

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Abstract

The invention provides a spray-free modified polypropylene material with paint brightness and silver metal texture. The material is prepared from the following components in percentage by mass: 78.3-94.4 percent of polypropylene, 0-20 percent of an elastomer, 0.2-0.7 percent of metal powder, 0.4-1 percent of auxiliary. The performance of each component is screened, and the proportion of each component is adjusted, so that the appearance effect of the prepared modified polypropylene material is similar to the effect of paint spraying, the complicated operation of traditional painting can be saved, the problem that tiger skin texture generated on a modified polypropylene material in which leafing aluminum powder is added in the prior art in an injection molding process can be solved by an optimal prescription, and the metal texture and painting effect of the material can be better represented.

Description

technical field [0001] The invention relates to a polypropylene material, in particular to a spray-free modified polypropylene material with a glossy silver metal texture of paint. Background technique [0002] In recent years, glossy colors with a metallic appearance are becoming the new fashion in commercial fields such as automobiles, home appliances, and office supplies. In order to obtain the above effects, traditional spraying technology can be used, but due to the complexity of the spraying process and process, the spraying solvent used is volatile and pollutes the environment, easy to crack, and poses a threat to human health. Therefore, modern technology is looking for a spray-free and The material with a metallic texture brings a high-quality bright and colorful appearance to the product. Plastic plays an irreplaceable role in other materials in terms of aesthetics, comfort, safety, anti-corrosion, lightweight and design freedom. Among many plastic products, poly...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L23/08C08L23/16C08K13/04C08K7/18C08K3/08C08K5/098C08K5/132
CPCC08K2201/003C08L23/12C08L23/0815C08K13/04C08K7/18C08K2003/0812C08K5/132
Inventor 谢豹张辉刘季轩白璐
Owner TIANJIN MEIYA CHEM
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