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Polycarbonate composition and application of polysiloxane-polycarbonate copolymer in improving toughness and liquidity of mineral-filled polycarbonate

A polycarbonate and polysiloxane technology, applied in the field of polymer materials, can solve problems such as the influence of mineral-filled polycarbonate on mechanical properties, and achieve the effects of good melt index stability, not easy to deform, and stable fluidity

Inactive Publication Date: 2019-05-21
KINGFA SCI & TECH CO LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

On the other hand, in order to increase the flow stability of polycarbonate filled with mineral fillers, it is possible to neutralize the surface alkalinity of mineral fillers by adding acidic small molecules, but the addition of small molecule additives makes the mechanical properties of polycarbonate filled with minerals more affected. big impact

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  • Polycarbonate composition and application of polysiloxane-polycarbonate copolymer in improving toughness and liquidity of mineral-filled polycarbonate

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Embodiment Construction

[0049] The present invention is further illustrated by the following examples, but the present invention is not limited by the following examples.

[0050] The sources of raw materials used in the present invention are as follows, but are not limited by the following raw materials.

[0051] Polycarbonate resin: 1300-10NP, LG Chem;

[0052] Polysiloxane-polycarbonate copolymer A: The degree of polymerization of the siloxane block in the polysiloxane-polycarbonate copolymer is 50, and the total siloxane content is 20%.

[0053] Polysiloxane-polycarbonate copolymer B: the degree of polymerization of the siloxane block in the polysiloxane-polycarbonate copolymer is 34, and the total siloxane content is 25%.

[0054] Lubricant: LOXIOL P 861 / 3.5;

[0055] Antioxidant: CHINOX 1076;

[0056] Talc powder: particle size 1-2 microns;

[0057] The preparation method of the polycarbonate composition of embodiment and comparative example: mix polysiloxane-polycarbonate copolymer, polyca...

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Abstract

The invention discloses a polycarbonate composition. The polycarbonate composition comprises the following components in parts by weight: 70-100 parts of a polycarbonate resin and polysiloxane-polycarbonate copolymer, 1-35 parts of a mineral filling, 0.1-1.5 parts of sulfonate and 1-12 parts of a phosphorous-containing compound; and according to the weight parts, the ratio of the polycarbonate resin to the polysiloxane-polycarbonate copolymer is (9:1) to (1:9). The polycarbonate composition disclosed by the invention has the advantages of low smoke density, low heat release speed and high toughness and liquidity. The toughness of the polysiloxane-polycarbonate copolymer is slightly lower than that of traditional polycarbonate; however, after mineral-filled polycarbonate is added to the polysiloxane-polycarbonate copolymer, the toughness of the polycarbonate filled with the minerals can be obviously improved; and the liquidity of the composition is also improved.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to the application of polycarbonate composition and polysiloxane-polycarbonate copolymer to improve the toughness and fluidity of mineral-filled polycarbonate. Background technique [0002] Polycarbonate (PC) is widely used in the transportation industry. For aircraft cabins with highly concentrated personnel and relatively small and closed spaces, once the material is caught on fire, it will consume a lot of oxygen, release heat and produce toxic and flammable gases. Experience that further combustion will generate more heat, and the concentrated release of heat will create a local high-temperature environment, resulting in accelerated degradation of materials and more toxic and flammable gases. As Chinese people pay more attention to travel safety, it is urgently needed by the market to develop a product with low smoke density and low heat release during combustion and h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L83/10C08K13/02C08K5/42C08K5/523C08K3/34
Inventor 吴俊岑茵黄险波叶南飚艾军伟王培涛赵体鹏丁超
Owner KINGFA SCI & TECH CO LTD
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