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Low temperature resistant environment-friendly inflaming retarding PC/PET alloy and method for preparing same

A low-temperature-resistant and environment-friendly technology, applied in the field of preparation of low-temperature-resistant environment-friendly flame-retardant PC/PET alloys, can solve the problems of reduced mechanical strength of composite materials, inability to meet usage requirements, etc., and achieves good heat resistance and good fluidity Effect

Inactive Publication Date: 2010-05-26
GUANGZHOU SUPER DRAGON ENG PLASTICS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chinese patent "A Halogen-Free Flame-Retardant PC / PET Composite Material and Its Preparation Method", patent application number: 200910130822.0, reports a preparation method of an environmentally friendly flame-retardant PC / PET composite material, although the material can achieve environmentally friendly flame-retardant , but the mechanical strength of the composite material is greatly reduced at low temperatures, which cannot meet the requirements of use in low temperature environments
Therefore, how to prepare an environmentally friendly flame-retardant PC / PET alloy that can be used in a low-temperature environment and has excellent mechanical strength through formula design to replace PC or PC / ABS for low-temperature resistance, flame retardancy, and oil and solvent resistance. , fields with high heat resistance, will have important practical application value, and related approaches have not been reported yet.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The following components are by weight percentage:

[0041] (1) PC 77%;

[0042] (2) PET 9%;

[0043] (3) Compatibilizer: KT-22 3%;

[0044] (4) Toughener: Rohm and Haas 2678 4%;

[0045] (5) Phosphorous flame retardants:

[0046] Polycondensation aryl phosphate PX-200 5%;

[0047] (6) Synergistic flame retardant:

[0048] PTFE-66 0.5%;

[0049] (7) Low temperature improver:

[0050] Organosiloxane Dow Corning MB50-007 1%

[0051] (8) Antioxidant: 1010 0.5%;

[0052] First dry PC and PET resins at 110°C for 4 hours, then dry the dried PC and PET resins, compatibilizers, tougheners, phosphorus flame retardants, synergistic flame retardants, low temperature modifiers, antioxidants, etc. The ingredients were added into the mixer in turn, and stirred and mixed for 3 minutes at a speed of 500 rpm. Then put the above mixture into a twin-screw extruder, melt extrusion and granulate to obtain the finished product. The processing technology is as follows: twin-screw e...

Embodiment 2

[0065] The following components are by weight percentage:

[0066] (1) PC 67%;

[0067] (2) PET 16%;

[0068] (3) Compatibilizer: KT-22 4%;

[0069] (4) Toughening agent: Rohm and Haas 2691 4%;

[0070] (5) Phosphorous flame retardants:

[0071] Polycondensation aryl phosphate PX-200 7%;

[0072] (6) Synergistic flame retardant:

[0073] PTFE-66 0.5%;

[0074] (7) Low temperature improver:

[0075] Organosiloxane Dow Corning MB50-007 1%

[0076] (8) Antioxidant: 1010 0.5%;

[0077] First dry PC and PET resins at 110°C for 4 hours, then dry the dried PC and PET resins, compatibilizers, tougheners, phosphorus flame retardants, synergistic flame retardants, low temperature modifiers, antioxidants, etc. The ingredients were added into the mixer in turn, and stirred and mixed for 3 minutes at a speed of 500 rpm. Then put the above mixture into a twin-screw extruder, melt extrusion and granulate to obtain the finished product. The processing technology is as follows: twin...

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Abstract

The invention provides a low temperature resistant environment-friendly inflaming retarding PC / PET alloy and a method for preparing the same. The alloy is prepared by drying and stirring components of PC, PET, a compatilizer, a toughening agent, a phosphorus burning agent, a synergetic flame retardant, a low-temperature modifier and an antioxidant, melt-extruding the components in a double-screw extruder and granulating. The low temperature resistant environment-friendly inflaming retarding PC / PET alloy has the advantages of excellent low temperature resistance, strong impact, high thermal deformation temperature, good flame resistance, mechanical property and size stability, and wide application in fields such as household appliances, electronic devices, building materials and automobiles.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a preparation method of a low-temperature-resistant environment-friendly flame-retardant PC / PET alloy. Background technique [0002] PC / PET alloy can overcome the disadvantages of PC material such as high melt viscosity, difficult forming process, oil and solvent resistance, etc. It is an alloy material with excellent performance. At present, there are not many researches on PC / PET composite materials in China, especially about low-temperature resistant flame-retardant PC / PET composite materials. For example, the Chinese patent "A PC / PET alloy and its preparation method", patent application number: 200710074569.2, reports a preparation method of a PC / PET composite material; the Chinese patent "A PC / PET alloy and its preparation method" , patent application number: 200710019829.6, reports a preparation method of PC / PET alloy sheet. The above two inventions are not rela...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L67/02C08L27/18C08L83/04C08L85/02C08K5/5415B29B9/06B29C47/92B29C48/40B29C48/92
CPCB29C48/92B29C2948/92704B29C48/04B29C48/40B29C48/9185B29C48/919B29C2948/92514B29C2948/9259B29C2948/92885B29C2948/92895B29C2948/92904
Inventor 郝建鑫余鹏任萍郝源增刘帅
Owner GUANGZHOU SUPER DRAGON ENG PLASTICS
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