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General-grade blended doped transparent flame-retardant masterbatch used for PC material, and preparation method and applications thereof

A flame-retardant masterbatch and transparent technology, which is applied in the field of general-purpose flame-retardant masterbatch for blending and doped transparent PC materials and its preparation field, can solve the problems of difficulty in meeting the requirements of flame-retardant performance, and achieve the maintenance of mechanical properties and physical properties. performance and thermal properties, improve aging resistance, good transparency

Inactive Publication Date: 2016-03-30
DONGGUAN CALVIN PLASTIC & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the flame retardancy of PC (oxygen index is 21% to 24%, and the flame retardancy reaches UL94V-2 level) is better than ordinary thermoplastic polymers (such as polyethylene, polypropylene, etc.), it is still difficult to meet certain application fields. Requirements for flame retardant properties, so flame retardant modification of PC is required

Method used

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  • General-grade blended doped transparent flame-retardant masterbatch used for PC material, and preparation method and applications thereof
  • General-grade blended doped transparent flame-retardant masterbatch used for PC material, and preparation method and applications thereof
  • General-grade blended doped transparent flame-retardant masterbatch used for PC material, and preparation method and applications thereof

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Effect test

Embodiment 1

[0029] In this embodiment, the flame retardant masterbatch for transparent PC material is prepared from the following raw materials in mass percentage:

[0030]

[0031] Its preparation method is as follows:

[0032] PC resin, brominated epoxy resin, organic silicon and bisphenol A are blended and doped at a stirring rate of 200r / min, and then extruded in a twin-screw extruder, the screw area of ​​the twin-screw extruder The preheating temperature is 300° C., the screw speed is 250 r / min, and the flame-retardant masterbatch for the transparent PC material is obtained.

Embodiment 2

[0034] In this embodiment, the flame retardant masterbatch for transparent PC material is prepared from the following raw materials in mass percentage:

[0035]

[0036] Its preparation method is as follows:

[0037] PC resin, brominated epoxy resin, organic silicon and bisphenol A are blended and doped at a stirring rate of 100r / min, and then extruded in a twin-screw extruder, the screw area of ​​the twin-screw extruder The preheating temperature is 250° C., the screw speed is 300 r / min, and the flame-retardant masterbatch for the transparent PC material is obtained.

Embodiment 3

[0039] In this embodiment, the flame retardant masterbatch for transparent PC material is prepared from the following raw materials in mass percentage:

[0040]

[0041]

[0042] Its preparation method is as follows:

[0043] PC resin, brominated epoxy resin, organosilicon and bisphenol A are blended and doped at a stirring speed of 150r / min, and then extruded in a twin-screw extruder, the screw area of ​​the twin-screw extruder The preheating temperature is 280° C., the screw speed is 350 r / min, and the flame-retardant masterbatch for the transparent PC material is obtained.

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Abstract

The invention provides a general-grade blended doped transparent flame-retardant masterbatch used for PC material, and a preparation method and applications thereof. The general-grade blended doped transparent flame-retardant masterbatch used for PC material is prepared from 30 to 40% of PC resin, 10 to 30% of brominated epoxy resin, 5 to 15% of organosilicone, and 15 to 55% of bisphenol A, and is prepared via steps of blending and doping, and extrusion molding. The general-grade blended doped transparent flame-retardant masterbatch possesses excellent flame resistance; flame resistance is capable of reaching V0 grade; transparency is not influenced; a silicon-containing system is capable of improving aging resistance of transparent PC material, and mechanical properties, physical properties, and thermal properties are maintained; transparency of PC material is not influenced by adding of 5% of the general-grade blended doped transparent flame-retardant masterbatch into PC material; direct injection moulding can be realized; flame resistance of an obtained PC material is capable of reaching V0 grade; industrial production can be realized; and the general-grade blended doped transparent flame-retardant masterbatch is widely used.

Description

technical field [0001] The invention belongs to the field of flame-retardant masterbatch preparation, and relates to a general-purpose flame-retardant masterbatch for blending and doping transparent PC materials, a preparation method and application thereof. Background technique [0002] Polycarbonate (PC) has outstanding impact properties, transparency, dimensional stability, excellent mechanical properties and electrical properties, high glass transition temperature (140 ° C ~ 150 ° C), heat distortion temperature (132 ° C ~ 138 ℃), and a wide temperature range (-60 ℃ ~ 120 ℃) ​​are widely used in electrical and electronic, construction, packaging, medical equipment, optical instruments, transportation and other fields, and are rapidly developing into aviation, aerospace, computer and other fields . Although the flame retardancy of PC (oxygen index is 21% to 24%, and the flame retardancy reaches UL94V-2 level) is better than ordinary thermoplastic polymers (such as polyet...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L63/00C08L83/04C08K5/13C08J3/22
CPCC08L69/00C08J3/226C08J2369/00C08J2469/00C08L2201/02C08L2201/08C08L2205/03C08L63/00C08L83/04C08K5/13
Inventor 孔作万沈渭芳梁惠萍王安民
Owner DONGGUAN CALVIN PLASTIC & TECH
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