Matt PC/PBT alloy material and preparation method thereof

An alloy material and matte technology, which is applied in the field of matte PC/PBT alloy materials and their preparation, can solve the problems of accelerating the decomposition of ester groups in the alloy, reducing the thermal stability of the PC/PBT alloy, and reducing the thermal stability of the PC/PBT alloy material. , to achieve the effect of increasing extinction, easy availability of raw materials, and easy large-scale industrial production

Inactive Publication Date: 2018-01-16
ORINKO NEW MATERIAL CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the addition of matting agents and inorganic fillers can effectively reduce the gloss of PC / PBT alloys, there is no relevant report on the method of further reducing the gloss of PC / PBT alloys in the face of higher matte requirements.
At the same time, most of the inorganic fillers are alkaline, which will accelerate the decomposition of the ester group in the alloy and reduce the thermal stability of the PC / PBT alloy material.

Method used

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  • Matt PC/PBT alloy material and preparation method thereof
  • Matt PC/PBT alloy material and preparation method thereof
  • Matt PC/PBT alloy material and preparation method thereof

Examples

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Embodiment Construction

[0028] In order to better understand the present invention, the present invention will be further described below in conjunction with embodiments.

[0029] The matt PC / PBT alloy materials in the examples were prepared according to the following preparation methods, and the proportions of the components in Examples 1-3 are shown in Table 1:

[0030] Mix 50-60 parts of bisphenol A PC resin, 25-45 parts of PBT resin, 5-15 parts of ABS resin, 3-6 parts of toughening agent, 1-3 parts of compatibilizer, 1-4 parts of matting agent, 0.2 -0.6 parts of antioxidant, 0.2-0.6 parts of lubricant, and 0.1-0.5 parts of transesterification inhibitor are added to a high-speed mixer and mixed for 2-5 minutes, where the speed is 300-400rpm; the mixed materials are added to the meshing type In the parallel co-rotating twin-screw extruder, the matt PC / PBT alloy is obtained by melting, extruding, and pelletizing; the temperature of the extruder barrel is 220-250°C and the vacuum degree is -0.04--0.1MPa. ...

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Abstract

The invention discloses a matt PC/PBT alloy material and a preparation method thereof. Alloy material components comprise bisphenol A PC resin, PBT resin, ABS resin, a flexibilizer, a compatilizer, aflatting agent, and an ester exchange inhibitor; and the PC/PBT alloy material is prepared by mixing of all components, melting, extrusion, and pelletizing. According to the invention, a delustering purpose is realized by utilizing the components, so that the PC/PBT alloy material with low glossiness which a conventional matt PC/PBT alloy cannot achieveis prepared, the thermal stability of the material is not damaged, and the PC/PBT alloy material prepared by the method is suitable for the field which has higher matt requirements.

Description

Technical field: [0001] The invention relates to the technical field of polymer material modification, in particular to a matte PC / PBT alloy material and a preparation method thereof. Background technique: [0002] As one of the five major engineering plastics, PC resin has excellent mechanical strength and ultra-high toughness, and has good heat resistance, but its corrosion resistance is poor, and it is not resistant to organic solvents. It is easy to be dissolved and cause cracking; at the same time, its flow properties are poor. Not suitable for injection molding of large-size parts. Polybutylene terephthalate (PBT) resin is easy to crystallize, has good resistance to acid corrosion, organic solvents, and hot water; it has high fluidity and good moldability. PC / PBT alloy materials can combine the characteristics of both PC resin and PBT resin, give play to the advantages of both, and make up for their shortcomings. [0003] In the molten state, PC and PBT can undergo a transe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L67/02C08L55/02C08L51/06C08L33/08C08L33/20C08K3/32C08K5/523
Inventor 任大伟刘磊姚为忠李荣群
Owner ORINKO NEW MATERIAL CO LTD
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