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Flame-retardant PC (polycarboante)/PET (polyethylene terephthalate) composite material and preparation method thereof

A composite material and flame retardant technology, applied in the field of flame retardant PC/PET composite material and its preparation, can solve the problems of easy embrittlement and poor effect, and achieve the effect of excellent low temperature impact performance and good filling fluidity

Inactive Publication Date: 2012-01-25
SHENZHEN KEJU NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

PC / PET alloys generally have good low-temperature impact properties, but after adding flame retardants, PC / PET alloys are prone to embrittlement at low temperatures, and the effect of long-term use at low temperatures is poor

Method used

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  • Flame-retardant PC (polycarboante)/PET (polyethylene terephthalate) composite material and preparation method thereof
  • Flame-retardant PC (polycarboante)/PET (polyethylene terephthalate) composite material and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Prepare the premix according to the following weight percentage: polycarbonate (GE EXL1414) 65%, PET (FC-01-68) 20%, compatibilizer (PETG AN0004) 1%, main toughening agent 5% (S2001), Auxiliary toughener (1125AC) 2%, lubricant (EBS 120) 0.5%, antioxidant (1010) 0.5%, flame retardant (BC-58) 6%. Add the dry PC and PET into the high-speed batch mixer together, add antioxidant, toughener, flame retardant, compatibilizer and main and auxiliary lubricants and mix for 5-10 minutes, and put the mixed premix in Granulated by melt extrusion in a twin-screw machine. The process is: twin-screw first stage temperature 220-230°C, second stage temperature 230-240°C, third stage temperature 240-250°C, mold temperature 60-100°C, residence time 1-2 minutes, pressure 10-15MPa.

Embodiment 2

[0039] Prepare the premix according to the following weight percentage: polycarbonate (GE EXL1414) 62%, PET (CZ5011) 18%, compatibilizer (PETG AN0004) 2%, primary toughening agent (S2001) 4%, auxiliary toughening agent (1125AC) 3%, lubricant (EBS 120) 0.6%, antioxidant (1010) 0.4%, flame retardant (BC-58) 9%. Add the dry PC and PET into the high-speed batch mixer together, add antioxidant, toughener, flame retardant, compatibilizer and main and auxiliary lubricants and mix for 5-10 minutes, and put the mixed premix in Granulated by melt extrusion in a twin-screw machine. The process is: twin-screw first stage temperature 220-230°C, second stage temperature 230-240°C, third stage temperature 240-250°C, mold temperature 60-100°C, residence time 1-2 minutes, pressure 10-15MPa.

Embodiment 3

[0041] Prepare the premix according to the following weight percentage: polycarbonate (GE EXL1414) 68%, PET (CZ5011) 14%, compatibilizer (PETG AN0004) 3%, primary toughening agent (S2001) 2%, auxiliary toughening agent (1125AC) 2%, lubricant (EBS 120) 1%, antioxidant (1010) 1%, flame retardant (BC-58) 10%. Add the dry PC and PET into the high-speed batch mixer together, add antioxidant, toughener, flame retardant, compatibilizer and main and auxiliary lubricants and mix for 5-10 minutes, and put the mixed premix in Granulated by melt extrusion in a twin-screw machine. The process is: twin-screw first stage temperature 220-230°C, second stage temperature 230-240°C, third stage temperature 240-250°C, mold temperature 60-100°C, residence time 1-2 minutes, pressure 10-15MPa.

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Abstract

The invention discloses a flame-retardant PC (polycarboante) / PET (polyethylene terephthalate) composite material and a preparation method thereof. The flame-retardant PC / PET composite material is prepared from the following components in percentage by weight: 65-75% of PC, 15-25% of PET, 1-2% of antioxidant, 4-8% of main toughener, 2-4% of auxiliary toughener, 0.5-2% of lubricant, 6-15% of flame retardant and 1-3% of compatibilizer. The flame-retardant PC / PET composite material disclosed by the invention has good mold filling fluidity, has excellent low-temperature impact resistance compared with the prior art, is an environment-friendly alloy material with excellent comprehensive performance, and can substitute for low-temperature-resistant flame-retardant polycarbonate or high-impact-resistant flame-retardant polycarbonate / acrylonitrile-butadiene-styrene alloy to be applied in electric products, traffic and transportation, communication devices and other industries.

Description

[technical field] [0001] The invention relates to the field of polymer materials, in particular to a flame-retardant PC / PET composite material and a preparation method thereof. [Background technique] [0002] Polycarbonate (PC for short) is a non-crystalline thermoplastic engineering plastic with excellent performance. It has outstanding impact resistance, good creep resistance and dimensional stability, heat resistance, low water absorption, non-toxicity, and dielectric properties. Excellent, it is the only product with good transparency among the five major engineering plastics, and it is also the general engineering plastic with the fastest growth rate in recent years. At present, it is widely used in automobiles, electronics, construction, office equipment, packaging, sports equipment, medical care and other fields. With the continuous deepening of modification research, it is rapidly expanding to high-tech fields such as aerospace, computers, and optical discs. However...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L67/02C08L51/00C08L23/08C08K5/134C08K5/526C08K5/20B29C47/92B29C48/92
Inventor 徐东徐永何杰
Owner SHENZHEN KEJU NEW MATERIAL
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