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A kind of oil fume resistant polycarbonate material and its preparation method and application

A technology of polycarbonate and oil fume, which is applied in the field of polycarbonate materials, can solve the problems of unimproved oil resistance and achieve the effects of improved oil fume crack resistance, oil crack resistance, and good electrical insulation performance

Active Publication Date: 2017-01-11
中广核俊尔(浙江)新材料有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its oil resistance is still not improved

Method used

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  • A kind of oil fume resistant polycarbonate material and its preparation method and application
  • A kind of oil fume resistant polycarbonate material and its preparation method and application
  • A kind of oil fume resistant polycarbonate material and its preparation method and application

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Experimental program
Comparison scheme
Effect test

Embodiment 1～3

[0042] Embodiments 1 to 3 relate to a kind of oil fume-resistant polycarbonate material, and the content of each formula component of the material is shown in Table 1; wherein, the PC resin is selected from LG-DOW PC201-10 resin; the carboxylated nitrile rubber is selected from Krynac 211 (Canada SARNIA company), its mass percentage content of acrylonitrile is between 31%~35%; Flame retardant selects BC58 (brominated polycarbonate flame retardant) of U.S. Great Lakes Company for use; Antioxidant selects Iraanox1076 of Ciba Company for use And the compound of Iraanox168, its mass ratio is 1:1; The lubricant adopts PETS to be commercially available pentaerythritol ester.

[0043] Its preparation steps are as follows:

[0044] 1) Carboxylated nitrile rubber Krynac 211 and ethylene methyl acrylate copolymer ( 1330) after mixing with the ratio of mass ratio 4:1, join in the kneader and fully knead, then carry out pelletizing, obtain the nitrile rubber masterbatch;

[0045] 2) Add ...

Embodiment 4

[0065] Carboxylated nitrile rubber 1072 (Taiwan Nandi, acrylonitrile mass percentage content 27%) and ethylene methyl acrylate copolymer ( 1330) after mixing with the ratio of mass ratio 4:1, add in the kneader and fully knead, then carry out pelletizing, obtain the nitrile rubber masterbatch.

[0066] 10 parts of prepared nitrile rubber master batches were mixed with 81.1 parts of polycarbonate resin (PC201-10), 8 parts of flame retardant (BC58), 0.5 parts of compound antioxidant (1076 / 168=1:1) and Dow Corning Add 0.4 parts of silicone powder (4-7081) into a high-speed mixing mixer, first stir at a low speed of 1000rpm for 2 minutes, then stir at a high speed of 1500rpm for 3 minutes and mix well. The resulting mixture is fed through the main feeding port of the twin-screw extruder, extruded and pelletized.

[0067] The temperature settings of the twin-screw extruder used are: zone 1: 250°C, zone 2: 265°C, zone 3: 265°C, zone 4: 250°C, zone 5: 240°C, zone 6: 240°C, zone 7: ...

Embodiment 5

[0069] Carboxylated nitrile rubber 3245C (Taiwan Nandi, acrylonitrile mass percentage content 32%) and ethylene methyl acrylate copolymer ( 1330) mixed at a mass ratio of 4:1, then added to a kneader and fully kneaded, and then pelletized.

[0070] 10 parts of prepared nitrile rubber masterbatch and 80.5 parts of polycarbonate resin (PC201-10), 8 parts of flame retardant (BC58), 0.5 part of compound antioxidant (1076 / 168=1:1) and Dow Corning Add 1 part of silicone powder (4-7081) into a high-speed mixing mixer, first stir at a low speed of 1000rpm for 2 minutes, and then stir at a high speed of 1500rpm for 3 minutes to mix well. The resulting mixture is fed through the main feeding port of the twin-screw extruder, extruded and pelletized.

[0071] The temperature settings of the twin-screw extruder used are: zone 1: 250°C, zone 2: 265°C, zone 3: 265°C, zone 4: 250°C, zone 5: 240°C, zone 6: 240°C, zone 7: 240 ℃, 8th zone: 240℃, 9th zone: 240℃, die head: 250℃, screw speed 450...

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Abstract

The invention discloses an oil fume resistant polycarbonate material, a preparation method and application thereof. The oil fume resistant polycarbonate material is prepared from the following components by mass: 70-90% of polycarbonate; 5-20% of modified nitrile butadiene rubber; 4-15% of a flame retardant; 0.3-3% of an antioxidant, and 0.4%-3% of a lubricating agent. The modified nitrile butadiene rubber is prepared from nitrile butadiene rubber and an ethylene-methyl acrylate copolymer in a mass ratio of 2-5:1. The material has excellent impact toughness, good flame retardant properties and electrical insulation properties, also has well improved oil fume cracking resistance, and is very suitable for preparation of kitchen wall switches and other products. The preparation method of the oil fume resistant polycarbonate material disclosed in the invention adopts existing equipment, the preparation is simple and is easy for industrial production, thus having broad application prospects.

Description

technical field [0001] The invention relates to the field of polycarbonate materials, in particular to an oil fume-resistant polycarbonate material and its preparation method and application. Background technique [0002] PC (polycarbonate) is an almost colorless glassy amorphous polymer with good optical properties. As an engineering plastic with superior comprehensive performance, PC has excellent impact toughness, good dimensional stability and electrical insulation, and is mostly used for injection molding wall switch panels and other electrical materials. [0003] Due to the benzene ring rigid group and its steric hindrance effect on the molecular chain of polycarbonate material, the molecular chain movement is greatly restricted, and its injection molding products are prone to internal stress. In an environment with a lot of oil fumes such as a kitchen, this internal stress is easily induced, resulting in cracking of polycarbonate injection-molded wall switches and ot...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L69/00C08L13/00C08L23/08
Inventor 王浩黄志杰黄瑞杰周国剑肖红伟姜小龙方万漂
Owner 中广核俊尔(浙江)新材料有限公司