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Halogen-free expansion type flame-retardant polycarbonate composition and preparation method thereof

A technology of flame retardant polycarbonate and intumescent flame retardant, which is applied in the field of halogen-free intumescent flame retardant polycarbonate composition and its preparation, can solve rare problems and the like, achieve isolation of oxygen and heat transmission, reduce Production cost, effect of improving flame retardant performance

Inactive Publication Date: 2018-01-30
CHANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

There have been reports on the addition of phosphazene derivatives to epoxy resins as synergistic components of flame retardant additives, but the research on applying them to polycarbonate as the main component of flame retardants is still rare

Method used

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  • Halogen-free expansion type flame-retardant polycarbonate composition and preparation method thereof
  • Halogen-free expansion type flame-retardant polycarbonate composition and preparation method thereof
  • Halogen-free expansion type flame-retardant polycarbonate composition and preparation method thereof

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Embodiment Construction

[0022] The present invention will be described in further detail below in conjunction with the examples, and the specific examples described here are only used to explain the present invention, and are not intended to limit the present invention.

[0023] The invention discloses a halogen-free flame-retardant polycarbonate composition and a preparation method thereof. The polycarbonate composition prepared by the preparation method of the application has the characteristics of excellent heat resistance and flame-retardant grade; the reason for its realization is that , the present invention optimizes the combination of raw material formulations of the polycarbonate composition, and optimizes and innovates its preparation method, specifically as follows:

[0024] (1) Preparation of polycarbonate composition masterbatch

[0025] Examples 1 to 6 are all based on the weight percentage of the raw materials described in Table 1, and the polycarbonate composition masterbatch is prepa...

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Abstract

The invention discloses a halogen-free expansion type flame-retardant polycarbonate composition and a preparation method thereof and belongs to the technical field of macromolecule modification. The formula of the composition comprises the following raw materials: 100 parts of polycarbonate resin, 0.01-30 parts of a halogen-free expansion type flame retardant, 0.1-1 part of an anti-drop agent, 0.2-2 parts of an antioxidant and 0.01-10 parts of other aids. By adopting the composition, the situation that the environment and human bodies are damaged by a halogen flame retardants in polycarbonateis overcome, due to adoption of a synergistic flame retardancy effect of phosphorus-nitrogen-silicon in a phosphonitrile derivative, the flame retardancy of the polycarbonate is improved, that is, upto VL-94V-0, and good flame retardant effect is achieved with a small amount of a phosphonitrile derivative flame retardant, and the production cost is greatly reduced.

Description

technical field [0001] The invention belongs to the technical field of polymer modification, and more specifically relates to a halogen-free intumescent flame-retardant polycarbonate composition and a preparation method thereof. Background technique [0002] Polycarbonate (PC) has excellent light transmission, high impact strength and glass transition temperature, good electrical insulation, weather resistance, etc., and is widely used in construction, electrical and electronic equipment, transportation, optical devices, etc. . Because polycarbonate is flammable, its application field is greatly limited, so it must be modified by flame retardancy. [0003] Although the halogenated flame retardants that have been widely used are cheap, they will generate toxic gases and carcinogens during the combustion process, resulting in secondary pollution and endangering human health. Therefore, halogenated flame retardants have been used worldwide. Used gradually by static. For this...

Claims

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Application Information

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IPC IPC(8): C08L69/00C08L27/18C08L83/08C08K5/544
Inventor 王标兵蒋季成
Owner CHANGZHOU UNIV
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