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High temperature and scratch-resistant halogen-free flame-retardant polycarbonate film

A technology of flame retardant polycarbonate and polycarbonate, applied in the field of polycarbonate resin, can solve the problems of affecting the physical properties and temperature resistance of the material, unable to improve the flame retardant grade of the material, and the addition amount is small, so as to ensure the surface resistance. Scratch, good flame retardancy, toxicity reduction effect

Active Publication Date: 2015-12-09
上海冠旗电子新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of flame retardant, especially the alkali metal or alkaline earth metal salt of aryl sulfone sulfonic acid with electron-withdrawing group, its excellence is reflected in the small amount of addition required, high flame retardant efficiency, and can overcome the conventional polycarbonate flame retardant Some disadvantages of additives, but it is easy to reach the saturated addition amount in polycarbonate and cannot improve the flame retardant grade of the material
However, most conventional phosphorus-based flame retardants are added in large amounts, and adding them to polycarbonate materials will greatly affect the physical properties and temperature resistance of the material, which is greatly restricted in some electronic and electrical application fields.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] According to the data given in Table 1, first, 100 parts of polycarbonate (L-1250Y from Teijin), 10 parts of phosphorus-containing polyethylene terephthalate oligomers (PC / GH230 from Japan TOYOBO), 0.1 part of nano-scale silicon nitride powder (specific particle size: 20-28nm), 0.1 part of hindered phenolic antioxidant (Ciba's Irgaphos1010 and Irgaphos1681:1 compound) and 0.1 part of pure tetrafluoroethylene resin The anti-dripping agent (1645 of 3M Company) is mixed in a high-speed mixer for 2 to 4 minutes; the obtained mixture is sent to a twin-screw extruder for melt extrusion and granulation, and the speed of the extruder is 200 rpm , the temperature of the first zone of the extruder is 250-255°C, the temperature of the second zone is 255-260°C, the temperature of the third zone is 255-260°C, the temperature of the fourth zone is 260-265°C, and the temperature of the head is 260-265°C; The obtained particles were prepared into a 0.1mm PC film, and made into a standa...

Embodiment 2

[0037] According to the data given in Table 1, firstly, 100 parts of polycarbonate (3108 of Bayer Company), 20 parts of phosphorus-containing polyethylene terephthalate oligomers (PC / GH230 of Japan TOYOBO), 1 part Nanoscale silicon nitride powder (specific particle size: 20-28nm), 0.1 part of triphenyl phosphite antioxidant and 0.5 part of tetrafluoroethylene-based pure resin anti-dripping agent (449 anti-dripping agent from GE Company) in Mix in a high-speed mixer for 2 to 4 minutes; send the obtained mixture into a twin-screw extruder for melting and extrusion, and granulate. 255°C, the temperature of the second zone is 255-260°C, the temperature of the third zone is 255-260°C, the temperature of the fourth zone is 260-265°C, and the temperature of the head is 260-265°C; finally, the obtained particles are prepared into a 0.1mm PC film, And make a standard sample for the combustion performance test, adopt the comprehensive vertical combustion instrument to test according to ...

Embodiment 3

[0039] According to the data given in Table 1, first, 100 parts of polycarbonate (114 of SABIC Company), 30 parts of phosphorus-containing polyethylene terephthalate oligomer (PC / GH230 of Japan TOYOBO), 3 parts Nanoscale silicon nitride powder (specific particle size: 20-28nm), 0.5 parts of antioxidant (phosphite tris-(2,4-di-tert-butylphenyl) ester and phosphite tris-(2,6 -Dimethylphenyl) ester 2:1 compound) and 0.5 parts of tetrafluoroethylene pure resin anti-dripping agent (1645 of 3M Company) were mixed in a high-speed mixer for 2 to 4 minutes; the resulting mixture was sent to Put it into a twin-screw extruder for melt extrusion and granulation. The speed of the extruder is 200 rpm. 255~260℃, the temperature of the fourth zone is 260~265℃, and the temperature of the machine head is 260~265℃; finally, the obtained particles are prepared into a 0.1mm PC film, and made into a standard sample for combustion performance testing, using a comprehensive vertical combustion instru...

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Abstract

The invention relates to the field of polycarbonate resin, in particular to a halogen-free anti-flaming polycarbonate thin film. A heat-resistant scratch-resistant halogen-free anti-flaming polycarbonate thin film is a sheet or a thin film with the thickness of 0.025 to 0.25 mm formed by a resin composition, wherein the resin composition comprises the following components in part by weight: 100 parts of polycarbonate, 10 to 40 parts of phosphorus flame retardant, 0.1 to 1 part of heat stabilizer, 0.1 to 10 parts of heat-resistant scratch-resistant agent and 0.1 to 1 part of drop resistant agent. The thin film provided by the invention can guarantee the surface scratch resistance, heat resistance and other characteristics while having good anti-flaming property, and has lower toxicity when exposed at high temperature than common halogen anti-flaming polycarbonate materials which are in radiation when heated. The anti-flaming property of the thin film complies with the L94-VTM0 / V-0 level standard, so the thin film is especially suitable for being used as an ultrathin film product.

Description

technical field [0001] The invention relates to the field of polycarbonate resins, in particular to a halogen-free flame-retardant polycarbonate resin. Background technique [0002] Polycarbonate PC is one of the five widely used engineering plastics. It has comprehensive and balanced mechanical, electrical and heat resistance properties. It is especially famous for its excellent impact strength and creep resistance. It has high light transmittance and good mechanical properties. Impact toughness is the best among engineering plastics. Due to the excellent performance of PC, its products and its blended materials have been widely used in industries such as electronics, electrical appliances, machinery, automobiles, textiles, light industry and construction. [0003] Polycarbonate PC has a certain self-extinguishing property, and it will release CO2 when burning, and its flame retardant performance is better than that of ordinary plastics. However, in some occasions with hi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L69/00C08L67/02C08L27/18C08K3/34
Inventor 林峰徐浩
Owner 上海冠旗电子新材料股份有限公司