A kind of manufacturing method of fluororesin compound, fluororesin compound and its product forming

A kind of manufacturing method of fluororesin compound, fluororesin compound and its product forming

  • CN 105,082,495 B
  • Filed: 07/07/2015
  • Issued: 07/05/2019
  • Est. Priority Date: 07/07/2015
  • Status: Active Grant
First Claim
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1. a kind of manufacturing method of fluororesin compound, which is characterized in that the fluororesin compound contains fluororesin and crosslinkingFluorubber, the manufacturing method include the technical process that fluororesin, fluorine raw rubber and crosslinking agent are kneaded in double screw extruder,For melting temperature more than the fusing point of the fluororesin, the shear rate of the double screw extruder is 1434s-1, the twin-screwThe average extrusion output of extruder is 13.1kg/ hours, and the ratio between the length of the double-screw extruder screw and outer diameter are 40, describedDouble-screw extruder screw revolving speed is 300rpm, and the fluororesin is higher than 20 DEG C of described fluororesin fusing point or more, load in temperatureThe melt index measured under the conditions of 49N is 27.8g/10min, and the volume ratio of the fluororesin and the fluorine raw rubber is 69/31, instituteStating fluororesin is non-perfluorinated resin, and the fluororesin is ethylene/tetrafluoroethylene/perfluorobutyl ethylene copolymer, ethylene/tetra-The molar ratio of each monomer is 40/60/3.3 in vinyl fluoride/perfluorobutyl ethylene copolymer, and fluorine raw rubber is that tetrafluoroethene/propylene is totalPolymers, the molar ratio of each monomer is 55/45 in the tetrafluoroethene/propylene copolymer;

  • The crosslinking agent is dimethyl -2 2,3-,3- diphenyl butane and Triallyl isocyanurate, additional amount point of the two relative to 100 mass parts of fluororesin and fluorine raw rubberIt Wei 0.28 and 0.99.

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