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Nanoscale flame retardant reinforced polycarbonate and preparation method

A technology of polycarbonate and nano flame retardant, which is applied in the field of nano-level flame retardant reinforced polycarbonate and its preparation, can solve problems such as insufficient flame retardancy, and achieves good processability, strong temperature and corrosion resistance, and rigidity. Good results

Inactive Publication Date: 2015-02-11
QINGDAO XINZHAN PLASTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although pure PC has a certain flame retardancy with an oxygen index of 21% to 24%, but with the increasing market competition and higher requirements for flame retardancy, the flame retardancy of PC itself is insufficient. In order to adapt to product development and According to the market demand, it is necessary to modify the flame retardant of PC

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A polycarbonate 71%, nano-carbon fiber 10%, nano-magnesium hydroxide 10%, polydimethylsiloxane 5%, titanate coupling agent 1%, styrene-acrylonitrile-methacrylic acid water glycerin Esters (SAG) 2%, hindered phenolic antioxidant 1010 and phosphite antioxidant 168 by mass 1:1 compound 0.4%, pentaerythritol stearate (PETS) 0.6%. Wherein, described carbon nanofiber is the surface through oxygen (O 2 ) plasma-treated carbon nanofibers, the treatment process is to put the carbon nanofibers into oxygen (O 2 ) in the plasma box, treated for 2 to 5 minutes, and then exposed to dry air for 15 to 30 minutes to obtain surface oxygen (O 2 ) plasma-treated carbon nanofibers.

[0022] Preparation method: (1) Dry the polycarbonate in a blower dryer at 110°C-130°C for 3-4 hours, dry the nano-magnesium hydroxide at 80°C-120°C for 30-45 minutes, and set aside ; (2), carbon nanofiber surface oxygen (O 2 ) Plasma treatment: place carbon nanofibers in oxygen (O 2 ) in the plasma box, tr...

Embodiment 2

[0024] A nano-scale flame-retardant reinforced polycarbonate, the composition of which is: polycarbonate 67%, nano-carbon fiber 15%, nano-magnesium hydroxide 10%, polymethylphenylsiloxane 4%, A compound of 1.5% aluminum-titanium composite coupling agent, 1.5% styrene-grafted maleic anhydride copolymer (SMA), hindered phenolic antioxidant 1010 and phosphite antioxidant 168 at a ratio of 1:1 by mass 0.5%, pentaerythritol stearate (PETS) 0.5%. Wherein, described carbon nanofiber is the surface through oxygen (O 2 ) plasma-treated carbon nanofibers, the treatment process is to put the carbon nanofibers into oxygen (O 2 ) in the plasma box, treated for 2 to 5 minutes, and then exposed to dry air for 15 to 30 minutes to obtain surface oxygen (O 2 ) plasma-treated carbon nanofibers.

[0025] Preparation method: (1) Dry the polycarbonate in a blower dryer at 110°C-130°C for 3-4 hours, dry the nano-magnesium hydroxide at 80°C-120°C for 30-45 minutes, and set aside ; (2), carbon nan...

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Abstract

The invention discloses nanoscale flame retardant reinforced polycarbonate and a preparation method. The nanoscale flame retardant reinforced polycarbonate comprises the following components by mass: 60%-85% of polycarbonate, 5%-15% of nano carbon fiber, 10%-15% of a nano flame retardant agent, 4%-8% of an organosilicone flame retardant agent, 0.5%-2% of a coupling agent, 1%-3% of a compatibilizer, 0.1%-1% of an antioxidant and 0.1%-1% of a lubricant. The beneficial effect is in that, compared with the prior art, the prepared nanoscale flame retardant reinforced polycarbonate has the characteristics of high strength, good rigidity, heat resistance, excellent dimensional stability, high flame retardant efficiency and the like, can reach UL94V-0-level flame retardant property, has good processing property, excellent electrical performance and strong high temperature corrosion resistance, and has very broad application prospects in automotive, chemical, mechanical, electrical, construction and other fields as high performance structure materials.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a nanoscale flame-retardant reinforced polycarbonate and a preparation method thereof. Background technique [0002] Polycarbonate (PC) is a thermoplastic engineering plastic with excellent comprehensive properties. It has outstanding impact resistance, creep resistance and dimensional stability. It can maintain high mechanical strength in a high temperature range and is non-toxic. , with excellent dielectric properties, is the engineering plastic with the fastest growth and the largest production capacity in recent years. Although pure PC has a certain flame retardancy with an oxygen index of 21% to 24%, but with the increasing market competition and higher requirements for flame retardancy, the flame retardancy of PC itself is insufficient. In order to adapt to product development and In order to meet the market demand, it is necessary to modify the flame retardant o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08K13/06C08K9/02C08K7/06C08K9/04C08K3/22B29B9/06B29C47/92B29C48/92
CPCC08L69/00B29B9/06B29C48/92B29C2948/92704C08K2201/011C08L2201/02C08L2201/08C08L2205/03C08L83/04C08L25/14C08K13/06C08K9/02C08K7/06C08K9/04C08K2003/2224C08L35/06
Inventor 张正付宏海
Owner QINGDAO XINZHAN PLASTIC
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