High-gloss spray-free pc/abs alloy material and preparation method thereof

An alloy material and spray-free technology, which is applied in the field of high-gloss spray-free PC/ABS alloy materials and its preparation, can solve the problems of flow marks and weld lines on the surface of products, restrictions on the application of spray-free materials, and low comprehensive fluidity of materials , to achieve the effect of improving flow consistency, increasing market application range, and obvious metallic and pearlescent flashing texture

Active Publication Date: 2019-09-06
上海品诚控股集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although the special glossy effect can be achieved by directly adding the effect powder to the resin substrate, the comprehensive fluidity of the material is not high due to the particle size and shape of the effect powder itself
Especially when it is used for products with complex surface structures, there will be phenomena such as melt flow diversion, unstable flow rate, and melt convergence, and it is easy to form defects such as flow marks and weld lines on the surface of the product, which seriously limits the application of this type of spray-free material.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Follow the steps below to prepare high-gloss spray-free PC / ABS alloy materials:

[0041] 1) Weigh each component by weight: 92.1 parts of PC resin, 3 parts of ABS resin, 3 parts of compatibilizer, 0.3 part of antioxidant, 0.3 part of processing aid, 0.5 part of weather resistance agent and 0.8 part of mixing effect powder; The mixed effect powder is composed of 0.36 parts of silver pearl powder with small particle size, 0.07 part of silver pearl powder with medium particle size, 0.21 part of silver pearl powder with large particle size and 0.16 part of white effect powder;

[0042] 2) Mix the ABS resin, compatibilizer, effect powder and processing aid according to the above ratio with a high-speed mixer;

[0043] 3) The mixture prepared in step 2 is kneaded by a twin-screw extruder, cooled and then pelletized to obtain the mixture S1.

[0044] 4) Mix the mixture S1, PC resin, weather resistance agent and antioxidant according to the above ratio with a high-speed mixer;...

Embodiment 2

[0047] Follow the steps below to prepare high-gloss spray-free PC / ABS alloy materials:

[0048] 1) Weigh each component by weight: 91.7 parts of PC resin, 3 parts of ABS resin, 3 parts of compatibilizer, 0.3 part of antioxidant, 0.3 part of processing aid, 0.5 part of weather resistance agent and 1.2 parts of mixing effect powder; The mixed effect powder is composed of 0.53 parts of small particle size silver pearl powder, 0.11 part of medium particle size silver pearl powder, 0.32 part of large particle size silver pearl powder and 0.24 part of white effect powder;

[0049] 2) Mix the ABS resin, compatibilizer, effect powder and processing aid according to the above ratio with a high-speed mixer;

[0050] 3) Mix the mixture prepared in step 2 through a twin-screw extruder, cool it, cut it into pellets and pack it, so as to obtain the mixture S2;

[0051] 4) Mix the mixture S2, PC resin, weather resistance agent and antioxidant according to the above ratio with a high-speed m...

Embodiment 3

[0054] Follow the steps below to prepare high-gloss spray-free PC / ABS alloy materials:

[0055] 1) Weigh each component by weight: 90.4 parts of PC resin, 3 parts of ABS resin, 3 parts of compatibilizer, 0.3 part of antioxidant, 0.3 part of processing aid, 0.5 part of weather resistance agent and 2.5 parts of mixing effect powder; The mixed effect powder is composed of 1.11 parts of silver pearl powder with small particle size, 0.22 part of silver pearl powder with medium particle size, 0.67 part of silver pearl powder with large particle size and 0.5 part of white effect powder;

[0056] 2) Mix the ABS resin, compatibilizer, effect powder and processing aid according to the above ratio with a high-speed mixer;

[0057] 3) The mixture prepared in step 2 is kneaded by a twin-screw extruder, cooled, cut into pellets and packaged to obtain the mixture S3.

[0058] 4) Mix the mixture S3, PC resin, weather resistance agent and antioxidant according to the above ratio with a high-spe...

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Abstract

The invention discloses a high-gloss free-spraying PC / ABS alloy material and a preparation method thereof. The material is prepared from, by weight, 70-98wt% of PC resin, 1-10wt% of ABS resin, 1-10wt%of compatilizer, 0.1-0.3wt% of antioxidant, 0.1-1wt% of weather resistance agent, 0.1-1wt% of processing agent and 0.1-25wt% of mixed effect powder; the mixed effect powder is composed of silver pearl powder with large, middle, small particle sizes and white effect powder. According to the high-gloss free-spraying PC / ABS alloy material, effect powder of different microstructures is screened to bemixed according to different proportions, mixed effect powder with specific particle size distribution is formed, the flowability of the effect powder in the PC resin can be effectively improved, theflow consistency of the effect powder with melt in the extrusion or injection molding process is improved, accordingly, no flow mark or welding line exists on the surfaces of products, and the products are more attractive.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a high-gloss spray-free PC / ABS alloy material and a preparation method thereof. Background technique [0002] In recent years, people have paid more and more attention to environmental issues, and the use of spray-free resin materials on the surface of products is gradually becoming a trend. Spray-free resin materials can reproduce the bright and colorful hues produced by spray paint and the special effects of pearlescent, glittering, and metallic luster, thereby meeting people's aesthetic needs. And in the process of producing and using spray-free resin materials, pollution can be truly reduced. Spray-free resin materials can be widely used in handicrafts, toys, home appliances, automobiles, electronic products, sporting goods and office supplies and other fields. [0003] At present, the common preparation method of spray-free resin is to add effect powd...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L69/00C08L55/02C08K13/06C08K9/10C08K7/18C08K7/00C08K3/08B29C48/92B29B9/06
Inventor 陈增军姚冠丞张道仓张鹏
Owner 上海品诚控股集团有限公司
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