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A kind of ethylene-chlorotrifluoroethylene copolymer, its preparation method and application

A technology of chlorotrifluoroethylene and copolymer, applied in the field of fluorine-containing polymer materials, can solve problems such as changing the temperature resistance of resin

Active Publication Date: 2017-12-01
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

This method cannot fundamentally change the temperature resistance of the resin

Method used

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  • A kind of ethylene-chlorotrifluoroethylene copolymer, its preparation method and application
  • A kind of ethylene-chlorotrifluoroethylene copolymer, its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Embodiment 1: suspension polymerization method, two-(2-ethylhexyl) ammonium phosphate is surfactant

[0045] Clean the 10L stainless steel high-pressure reactor equipped with mechanical stirring, temperature control device, circulating heating and circulating cooling water, add 6L high-purity deionized water, vacuumize and replace with nitrogen three times, measure the oxygen content below 10ppm, and continue to vacuumize Until the pressure in the reactor is -0.1MPa. Add 5.5g di-(2-ethylhexyl) ammonium phosphate, 10ml chloroform in the reactor, add 2330g chlorotrifluoroethylene, 375g hexafluoropropylene and 320g cyclohexyl vinyl ether in the reactor by metering device, stir And raise the temperature to 65°C. After the temperature of the system is constant, add ethylene into the reactor with a compressor until the pressure is 3.5MPa, and add 200ml of aqueous solution containing 2.5g of potassium persulfate into the reactor with a metering pump to initiate the polymerizat...

Embodiment 2

[0048] Embodiment 2: Suspension polymerization method, two-(2-ethylhexyl) phosphate potassium salt is surfactant

[0049] Clean the 10L stainless steel high-pressure reactor equipped with mechanical stirring, temperature control device, circulating heating and circulating cooling water, add 6L high-purity deionized water, vacuumize and replace with nitrogen three times, measure the oxygen content below 10ppm, and continue to vacuumize Until the pressure in the reactor is -0.1MPa, add 6.5g of di-(2-ethylhexyl) phosphate potassium salt, 15ml of methylcyclopentane into the reactor, and add 2330g of trifluorochlorine to the reactor through a metering device Ethylene, 305g hexafluoropropylene and 220g cyclohexyl vinyl ether, stir and heat up to 60°C. After the system temperature is constant, add ethylene into the reactor with a compressor until the pressure is 2.8MPa, and then add it into the reactor with a metering pump. 200ml contains 2.35g ammonium persulfate aqueous solution to...

Embodiment 3

[0052] Embodiment 3: Suspension polymerization method, two-(2-ethylhexyl) phosphoric acid ester sodium salt is surfactant

[0053]Clean the 10L stainless steel high-pressure reactor equipped with mechanical stirring, temperature control device, circulating heating and circulating cooling water, add 5.5L high-purity deionized water, vacuumize and replace with nitrogen for three times, measure the oxygen content below 10ppm, and continue pumping Vacuum until the pressure in the reactor is -0.1MPa, add 3.2g of bis-(2-ethylhexyl)phosphate sodium salt, 5ml of chloroform, and 5ml of methylcyclopentane into the reactor, and add 2330g of chlorotrifluoroethylene, 450g of hexafluoropropylene and 400g of cyclohexyl vinyl ether, add 700ml of aqueous solution containing 7.5g of potassium persulfate to the reactor with a metering pump, stir and raise the temperature to 35°C. Add ethylene into the reactor until the pressure is 1.65MPa, add 100ml of aqueous solution containing 1.5g of sodium ...

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Abstract

The invention provides an ethylene-chlorotrifluoroethylene copolymer, which is at least composed of ethylene, chlorotrifluoroethylene, CF3-CX=CY2 (X, Y are independently selected from H, F, Cl or Br) and R-O- CH=CH2 (R is selected from C2-C16 straight-chain alkyl, branched-chain alkyl, cycloalkyl or C2-C16 straight-chain alkyl, branched-chain alkyl, cycloalkyl substituted by Cl, Br) four Copolymerized monomers. The invention also provides a preparation method of the ethylene-chlorotrifluoroethylene copolymer. The prepared ethylene-chlorotrifluoroethylene copolymer is suitable for anti-corrosion and / or protection against microbial adhesion equipment.

Description

technical field [0001] The invention belongs to the field of fluorine-containing polymer materials, and relates to an ethylene-chlorotrifluoroethylene copolymer, a preparation method and application thereof. Background technique [0002] Ethylene-chlorotrifluoroethylene (ECTFE or F30) fluororesin, first synthesized by DuPont in the United States, is a thermoplastic fluorine-containing copolymer, which has extraordinary corrosion resistance to most inorganic and organic chemicals and organic solvents. Compared with other thermoplastics, ECTFE's resistance to chlorine and chlorine derivatives at high temperatures is particularly outstanding; it has good toughness, high hardness, and outstanding impact resistance. The surface of its finished material is extremely smooth, similar to glass. The proliferation of microorganisms is used in the fields of food and drinking water; ECTFE has excellent electrical properties, and the wires and cables made of ECTFE belong to the highest sa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F210/02C08F214/24C08F214/28C08F216/16C08F2/18C08F2/26C08F214/18C08F216/18
Inventor 高自宏张万里秦胜孙斌
Owner ZHEJIANG RES INST OF CHEM IND CO LTD
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