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PC/ABS free-spraying resin composition improving silver wire problem in injection molding and preparation method of PC/ABS free-spraying resin composition

A resin composition and spray-free technology, which is applied in the field of PC/ABS spray-free resin composition and its preparation to improve the problem of injection molding silver wire, can solve the problems of different environmental pH, cannot be used at the same time, cannot be used in large quantities, etc., to achieve High molecular weight, reducing the possibility of substrate degradation, and solving the effect of material degradation

Active Publication Date: 2017-04-26
SHANGHAI KUMHO SUNNY PLASTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, during the use of common chelating agents, the required environmental pH is different, so sometimes they cannot be used at the same time
The chelating agent itself has a certain acidity and alkalinity, and it is also likely to promote the degradation of PC. In addition, its low molecular weight has a certain impact on the performance of the material, so it cannot be used in large quantities.

Method used

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  • PC/ABS free-spraying resin composition improving silver wire problem in injection molding and preparation method of PC/ABS free-spraying resin composition
  • PC/ABS free-spraying resin composition improving silver wire problem in injection molding and preparation method of PC/ABS free-spraying resin composition

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Embodiment 1～5 and comparative example 1～2

[0027] The components and contents used in each embodiment and comparative example are shown in Table 1, and the materials are prepared according to the components and contents of each embodiment and comparative example in Table 1 respectively.

[0028] First prepare the special-effect toner masterbatch: pre-mix the other raw materials except the above-mentioned masterbatch except the pearl effect pigment in the mixer, and then extrude the pre-mixed material through the twin-screw extruder, and at the same time, pass the side-feeding method. The pearlescent effect pigment is added into the melt according to the ratio, and extruded to obtain the special-effect toner masterbatch. Wherein the temperature of the extruder used is 190-230° C., the length-to-diameter ratio of the screw is 25-45, and the screw speed is 400-600 rpm.

[0029]Then according to the ratio in Table 1, the PC / ABS spray-free resin composition raw material does not contain the mixture of the effect toner maste...

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Abstract

The invention relates PC / ABS free-spraying resin composition improving a silver wire problem in injection molding and a preparation method of the PC / ABS free-spraying resin composition. The PC / ABS free-spraying resin composition comprises components in parts by weight as follows: 20-95 parts of PC, 5-80 parts of ABS, 0.1-20 parts of toner master batches with a special effect, 0.05-1 part of an antioxidant, and 0.1-2 parts of a lubricant. The toner master batches with the special effect are artificially synthesized pigment with pearly luster, which is formed through coating treatment of an acrylonitrile-styrene-GMA (glycidyl methacrylate) copolymer (AS-GMA). During preparation, a screw extruder is adopted to prepare toner master batches with the special effect, and then the screw extruder is adopted to prepare a PC / ABS free-spraying resin composition product, wherein the toner master batches are added in a side feeding manner. Compared with the prior art, the PC / ABS free-spraying resin composition and the preparation method well solve the problems of material degradation, physical property downgrade, silver wire in injection molding when the PC / ABS free-spraying resin composition is prepared in the prior art.

Description

technical field [0001] The invention relates to the application of polymer materials, in particular to a PC / ABS spray-free resin composition and a preparation method thereof for improving the problem of injection molded silver wires. Background technique [0002] As consumers have higher and higher requirements for product appearance quality, the decoration methods of automobile interior materials are becoming more and more abundant, and the high-end texture appearance effect is more and more popular in automobile interior decoration. Among them, the high-end texture with metal effect is the most common in car interiors. At present, the mainstream metal effect materials are painted to achieve aesthetic effects such as metallic texture and flashing. However, spray painting has complex processes such as pretreatment, painting, and transfer, and the cost is relatively high. The painting process pollutes the environment and is prone to produce "orange peel", etc. Spray paint pr...

Claims

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Application Information

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IPC IPC(8): C08L55/02C08L69/00C08K13/06C08K9/10C08K3/38C08K3/36C08K3/34B29C47/92B29C47/60B29C48/92
CPCB29C48/505B29C48/92B29C2948/9258B29C2948/92704C08L55/02C08L69/00C08K13/06C08K9/10C08K2003/387C08K3/36C08K3/34
Inventor 刘星季得运罗明华辛敏琦
Owner SHANGHAI KUMHO SUNNY PLASTICS
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