Polycarbonate composition as well as preparation method and application thereof

A technology of polycarbonate and composition, which is applied in the field of engineering plastics, can solve the problem that the retention length of glass fiber is difficult to be reasonably controlled through the process, and achieve the effects of improving flame retardant stability, reducing internal stress, and dispersing stress concentration

Pending Publication Date: 2022-07-22
KINGFA SCI & TECH CO LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0005] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a polycarbonate composition and its preparation method and application, in order to overcome the technical problem that the glass fiber retention length in the existing composite material is difficult to be reasonably controlled by the process, and Enables effective application of glass fiber reinforced flame retardant thermoplastics in outdoor or hot and humid environments

Method used

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  • Polycarbonate composition as well as preparation method and application thereof

Examples

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Comparison scheme
Effect test

Embodiment 1～8 and comparative example 1～6

[0061] The preparation methods of the polycarbonate compositions of Examples 1 to 8 and Comparative Examples 1 to 6 are:

[0062] The polycarbonate and titanium oxide are mixed uniformly in a high-speed mixer according to the ratio, and the speed of the high-speed mixer is 450 rpm to 500 rpm, and then added to the twin-screw extruder, and glass fiber is added to the side feeding port. , melt and mix at a temperature of 240° C. to 260° C., and then granulate, cool, and dry to obtain a polycarbonate composition.

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Abstract

The invention belongs to the technical field of engineering plastics, and discloses a polycarbonate composition as well as a preparation method and application thereof. The polycarbonate composition disclosed by the invention is prepared from the following components in parts by weight: 58 to 95 parts of polycarbonate, 8 to 40 parts of glass filler and 0.1 to 1 part of titanium oxide. The invention also provides a preparation method of the polycarbonate composition, and application of the polycarbonate composition in outdoor CPE (chlorinated polyethylene). According to the polycarbonate composition disclosed by the invention, the distribution interval of the glass filler is regulated and controlled by using the titanium oxide with specific silicon content, the negative influence of the length of the glass filler on flame retardance is reduced, stress concentration is dispersed, and internal stress is reduced, so that the flame-retardant stability of the material is improved, and the performance can be kept stable in a humid and hot environment.

Description

technical field [0001] The invention relates to the technical field of engineering plastics, in particular to a polycarbonate composition and a preparation method and application thereof. Background technique [0002] Polycarbonate (PC) is an engineering plastic with excellent performance. It has good comprehensive properties, high mechanical strength, good impact toughness, dimensional stability, good heat resistance, and good electrical insulation. It is used in home appliances, digital products, IT products, etc. and other fields have a wide range of applications. [0003] At present, with the trend of high-gloss and large-size thin-walled household appliances or equipment, resin materials are required to have higher mechanical strength. Glass fiber has the properties of high tensile strength, large impact energy absorption, elastic coefficient, good heat resistance and low price, and is often used as a reinforcing phase to modify resin materials. The strengthening mech...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08K7/14C08K3/22
CPCC08K7/14C08K3/22C08K2003/2241C08L2201/02C08L69/00
Inventor 刘贤文陈平绪叶南飚陆灿亮杨燕彭民乐艾军伟
Owner KINGFA SCI & TECH CO LTD
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