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A kind of black halogen-free flame-retardant polycarbonate film and preparation method thereof

A flame-retardant polycarbonate and film technology, applied in flat products, other household appliances, applications, etc., can solve the problems of easy-to-corrode molds, non-conformance, equipment failure, etc., and achieve good compatibility.

Active Publication Date: 2016-08-24
JIANGSU HANYANG NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the corrosive gas generated when the bromine-containing flame retardant material is thermally cracked, the key components in the electrical equipment may be damaged and the entire set of equipment may fail. Some brominated flame retardants, such as decabromodiphenyl ether, do not comply with EU ROHS, TCO & Blue Angel and other European environmental regulations and strict UL safety regulations
Therefore, the use of brominated flame retardants is increasingly restricted
Phosphate flame retardants have certain advantages in terms of performance, price, and environmental protection, so they are also widely used in flame-retardant PC and its alloys, but the use of such flame retardants reduces the processing performance of polymers, Hydrolytic stability, heat distortion temperature and transparency, and toxic substances are easy to seep out of the plastic, causing secondary pollution, and easy to corrode the mold

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Example 1 The main components of the black halogen-free flame-retardant polycarbonate film are: 100 parts of polycarbonate resin, 10 parts of halogen-free flame retardant, 0.1 part of anti-dripping agent, 0.5 part of heat stabilizer, 4 parts of black masterbatch, Heat-resistant and anti-scratch agent 0.5 part, halogen-free flame retardant is organic sulfonate flame retardant.

[0026] The composition of film also comprises sericite powder and titanate coupling agent, and the parts by weight of sericite powder is 1 part, and the weight ratio of the weight of titanate coupling agent and sericite powder is 12; The particle size is 350-400 mesh.

[0027] Modifier is 0.1 part of antistatic agent.

[0028] The preparation method of black halogen-free flame-retardant polycarbonate film:

[0029] The preparation method of black halogen-free flame-retardant polycarbonate film, comprises the steps:

[0030] S1: sericite powder modification, adopt dry method modification techno...

Embodiment 2

[0037] The difference between Example 2 and Example 1 is that the main components of the black halogen-free flame-retardant polycarbonate film are: 100 parts of polycarbonate resin, 40 parts of halogen-free flame retardant, 0.3 parts of anti-dripping agent, 0.75 parts of heat stabilizer 6 parts, 6 parts of black masterbatch, 2.5 parts of heat-resistant and anti-scratch agent, and the halogen-free flame retardant is silicone flame retardant.

[0038] The composition of film also comprises sericite powder and titanate coupling agent, and the parts by weight of sericite powder is 8 parts, and the ratio of the weight of titanate coupling agent and the weight of sericite powder is 1:18; The particle size is 350-400 mesh.

[0039] The modifier is 2 parts of toughening agent and 0.5 part of antistatic agent.

[0040] The temperature of each zone of the extruder is 230°C-300°C; the film-drawing speed is 25-35m / min.

Embodiment 3

[0042] The difference between Example 3 and Example 1 is that the main components of the black halogen-free flame-retardant polycarbonate film are: 100 parts of polycarbonate resin, 25 parts of halogen-free flame retardant, 0.5 parts of anti-dripping agent, 1 part of heat stabilizer 8 parts, 8 parts of black masterbatch, 5 parts of heat-resistant and anti-scratch agent, the halogen-free flame retardant is a mixture of organic sulfonate flame retardant and silicone flame retardant, organic sulfonate in halogen-free flame retardant The weight percentage of flame retardant is 80%.

[0043] The composition of film also comprises sericite powder and titanate coupling agent, and the parts by weight of sericite powder is 1 part, and the weight ratio of the weight of titanate coupling agent and sericite powder is 12; The particle size is 300-350 mesh.

[0044] The modifier is selected from 1 part of toughening agent, 1 part of ultraviolet absorber and 3 parts of antistatic agent.

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Abstract

The invention discloses a black halogen-free flame-retardant PC (polycarbonate) film. The film mainly comprises components in parts by weight, 100 parts of PC resin, 10-40 parts of a halogen-free flame retardant, 0.1-0.5 parts of anti-dripping agent, 0.5-1 part of a heat stabilizer, 4-8 parts of black master batch and 0.5-5 parts of a heat-resistant and anti-scratching agent, wherein the flame retardant is an organic sulfonate flame retardant and / or siloxane flame retardant. All the components of the film are good in compatibility and can be uniformly dispersed in a base material to form a homogenous system, during usage, no precipitate exists on the surface, and the film is non-toxic, harmless and free of pollution. A preparation method of the black halogen-free flame-retardant PC film can be used for reducing the usage amount of a drying tank and is suitable for mass production.

Description

technical field [0001] The invention relates to the field of polycarbonate films, in particular to a black halogen-free flame-retardant polycarbonate film and a preparation method thereof. Background technique [0002] Polycarbonate (PC) is a linear carbonated polyester, the carbonic acid groups in the molecule are arranged alternately with other groups, and it has comprehensive and balanced mechanical properties, dimensional stability and heat resistance, especially with excellent impact strength Known for its creep resistance. Polycarbonate resin has a visible light transmittance of over 90%, a high thermal decomposition temperature, and excellent electrical insulation properties. It is widely used in many fields such as machinery, automobiles, and aerospace. [0003] Polycarbonate has a certain flame retardancy, but it cannot meet the requirements of higher flame retardancy, so it must be modified for flame retardancy. The flame retardants commonly used in flame-retarda...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L69/00C08K13/06C08K9/04C08K3/34C08K5/42C08K5/54B29C47/92B29L7/00B29C48/92
CPCC08K3/34C08K5/42C08K5/54C08K9/04C08K13/06C08L2201/02C08L2201/22C08L2203/16C08L69/00
Inventor 周洁
Owner JIANGSU HANYANG NEW MATERIAL TECH
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