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Polycarbonate composition and preparation method thereof

A technology for polycarbonate and composition, applied in the field of polycarbonate composition and its preparation, can solve problems such as impact resistance and poor toughness, and achieve the effects of excellent rigidity, good flame retardancy and low water absorption

Active Publication Date: 2014-09-10
惠州市沃特新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the above-mentioned deficiencies of the prior art, provide a polycarbonate composition and its preparation method, to solve the technical problems of the existing polycarbonate composition impact resistance, relatively poor toughness

Method used

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  • Polycarbonate composition and preparation method thereof
  • Polycarbonate composition and preparation method thereof
  • Polycarbonate composition and preparation method thereof

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preparation example Construction

[0045] Correspondingly, the embodiments of the present invention also provide a method for preparing the above-mentioned polycarbonate composition. The method includes the following steps:

[0046] S01. respectively weigh each component according to above-mentioned polycarbonate composition;

[0047] S02. The components other than the glass fiber component are weighed in step S01 and mixed to obtain a mixed material;

[0048] S03. Add the mixture material obtained in step S02 into the main feeding port, and add the glass fiber components from the side material port for mixing, melting and extrusion.

[0049] Specifically, the polycarbonate composition in the above step S01 and the preferred contents and types of its components are as described above, and in order to save space, they will not be repeated here.

[0050] The mixing treatment in the above-mentioned step S02 can be performed according to a conventional mixing method, such as stirring, etc., as long as the component...

Embodiment 1-6

[0061] A polycarbonate composition and a preparation method thereof are provided. The content of each component contained in the polycarbonate composition and the content of each component are shown in Table 1 below, and its preparation method is as follows:

[0062] Mix PC, glass fiber, filler, flame retardant, toughening agent A, antioxidant, and other additives in a mixer according to the formula ratio of the halogen-free flame retardant reinforced PC composition, so that each component is fully After dispersing evenly, it is put into the twin-screw extruder, and the glass fiber is added by side feeding in the middle section of the twin-screw extruder, and then melted and extruded into pellets. The extrusion temperature is (100±10)~(250 ±10)~(260±5)~(260±5)~(260±5)~(285±5)~(285±5)~(260±5)~(260±5)~(260±5 )~(260±5)~(265±5)℃.

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Abstract

The invention discloses a polycarbonate composition and a preparation method thereof. The polycarbonate composition comprises the following components in parts by weight: 75-86 parts of polycarbonate, 3-5 parts of filling material, 10-15 parts of glass fibers, 0.1-1 part of flame retardant, 0.5-3 parts of toughening agent, 0.1-0.5 part of main antioxidant, 0.1-0.5 part of auxiliary antioxidant, and 0.1-2 parts of other agents. The polycarbonate is modified under the coordination of the reinforcing material, the toughening agent and the processing aid, so that the polycarbonate composition has the advantages of good stability, high strength, warping resistance, good surface glossiness and excellent high-speed puncture impact resistance and toughness. Meanwhile, the polycarbonate composition has a good flame-retardant performance.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and particularly relates to a polycarbonate composition and a preparation method thereof. Background technique [0002] Polycarbonate (PC, Polycarbonate) resin is an amorphous thermoplastic polymer with high impact strength, good rigidity, high heat resistance, good gloss, good dimensional stability, excellent electrical insulation and creep resistance. , but its processing flow properties are poor, and it is not resistant to stress cracking. [0003] Enhanced PC rigidity and heat resistance are greatly improved than PC, and the molding shrinkage rate is smaller, mainly used in some load-bearing parts, instrument covers and electronic and electrical shells. In addition, although the flame retardancy of PC is better than that of general thermoplastic polymers, it is still difficult to meet the requirements of flame retardancy in some application fields, so PC reinforcement materials mus...

Claims

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Application Information

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IPC IPC(8): C08L69/00C08L23/06C08L27/18C08K7/14C08K3/34C08K7/20C08K5/42B29C47/92B29C48/92
CPCB29B9/12B29B7/46B29B9/06B29B9/14B29C2947/92676B29C47/92B29B7/72B29C2947/92609B29C48/40B29C48/92B29C2948/92609B29C2948/92676B29C2948/92704
Inventor 周拥仔吴宪何征刘则安
Owner 惠州市沃特新材料有限公司
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