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Modified polytrifluorochloroethylene resin, and preparation method and applications thereof

A technology of polychlorotrifluoroethylene and chlorotrifluoroethylene, which is applied in photovoltaic power generation, electrical components, circuits, etc., and can solve problems such as uneconomical costs

Active Publication Date: 2018-01-05
ZHEJIANG RES INST OF CHEM IND CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to improve the oxygen barrier property of PCTFE film, in principle, it can be realized by increasing the film thickness or compounding with other films, but in practical application, it is found that increasing the thickness of PCTFE film does not necessarily improve the oxygen barrier property of the film, and in cost is not economical

Method used

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  • Modified polytrifluorochloroethylene resin, and preparation method and applications thereof
  • Modified polytrifluorochloroethylene resin, and preparation method and applications thereof
  • Modified polytrifluorochloroethylene resin, and preparation method and applications thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0036] Dissolve 2.4 g of azobisisobutyronitrile in 240 g of ethyl acetate to prepare an initiator solution. Take CF 3 (CF 2 ) 6 COONH 4 Add 3.6g and 3L of deionized water together into a 5L reactor equipped with mechanical stirring, temperature control device, and circulating heating\cooling device, vacuumize and replace with nitrogen three times, measure the oxygen content below 10ppm, and continue vacuuming to the reactor The internal pressure is -0.1MPa. Add 1200g of chlorotrifluoroethylene and CH to the reactor through a metering device 2 =C(CF 3 )OCOCH 3 45g, the stirring rate is 500rpm, and the temperature is raised to 65°C. After the system temperature is constant, add the initiator solution into the reactor with a metering pump, keep the polymerization pressure in the reactor at 1.68MPa, and react for 8 hours. The polymer product was washed several times with deionized water until the conductivity was less than 10 μS / cm, and the product was further vacuum-dried...

Embodiment 2

[0040] Dissolve 3.6 g of azobisisoheptanonitrile in 240 g of butyl acetate to prepare an initiator solution. Take CF 3 (CF 2 ) 7 SO 3 NH 4Add 3.6g and 3L of deionized water together into a 5L reactor equipped with mechanical stirring, temperature control device, and circulating heating\cooling device, vacuumize and replace with nitrogen three times, measure the oxygen content below 10ppm, and continue vacuuming to the reactor The internal pressure is -0.1MPa. Add 1200g of chlorotrifluoroethylene and CH to the reactor through a metering device 2 =C(CF 2 CF 3 )OCOCH 3 60g, the stirring rate is 500rpm, and the temperature is raised to 55°C. After the system temperature is constant, add the initiator solution into the reactor with a metering pump, keep the polymerization pressure in the reactor at 1.32MPa, and react for 8 hours. The polymer product was washed several times with deionized water until the conductivity was less than 10 μS / cm, and the product was further vac...

Embodiment 3

[0044] Dissolve 6 g of diisopropyl peroxydicarbonate in 360 g of n-hexane to prepare an initiator solution. Take F(CFCF 3 CF 2 O) 3 CFCF 3 COONH 4 Add 6g and 3L of deionized water together into a 5L reactor equipped with mechanical stirring, temperature control device, and circulating heating\cooling device, vacuumize and replace with nitrogen three times, measure the oxygen content below 10ppm, and continue vacuuming into the reactor The pressure is -0.1MPa. Add 1200g of chlorotrifluoroethylene and CH to the reactor through a metering device 2 =C(CF 2 CF 2 CF 3 )OCOCH 3 90g, the stirring rate is 500rpm, and the temperature is raised to 55°C. After the system temperature is constant, add the initiator solution into the reactor with a metering pump, keep the polymerization pressure in the reactor at 1.32MPa, and react for 8 hours. The polymer product was washed several times with deionized water until the conductivity was less than 10 μS / cm, and the product was furt...

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Abstract

The invention discloses a modified polytrifluorochloroethylene resin. The modified polytrifluorochloroethylene resin is prepared via copolymerization of trifluorochloroethene with a compound (the structural formula is disclosed in the patent specification) represented by formula I. Modified polytrifluorochloroethylene membrane prepared from the modified polytrifluorochloroethylene resin possessesexcellent barrier properties on moisture and / or oxygen, and is suitable to be used in the fields such as drug packaging, electronic electrical element packaging, and solar energy battery packaging.

Description

technical field [0001] The invention belongs to the field of fluorine-containing polymer materials, and in particular relates to a modified polychlorotrifluoroethylene resin. Background technique [0002] Polychlorotrifluoroethylene (PCTFE) is the earliest thermoplastic fluoroplastic developed for industrial production. In 1937, the I.G.Farben industrie company in Germany first reported the preparation of PCTFE. In 1946, the United States officially built a PCTFE production plant and put it into production. In 1957, 3M Company of the United States began to sell PCTFE in large quantities under the trademark "Kel-F". [0003] PCTFE is polymerized from chlorotrifluoroethylene (CTFE), which has excellent chemical stability, insulation and weather resistance, and can be used for a long time at -196~125°C, and its mechanical strength and hardness are better than polytetrafluoroethylene. , the film made has better transparency and excellent water vapor barrier properties, and ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F214/24C08F218/04C08F2/26C08L27/12C08J7/12H01L31/048
CPCY02E10/50
Inventor 宋健赵柯郑红亚黄红英高自宏
Owner ZHEJIANG RES INST OF CHEM IND CO LTD