119 results about "Propyl vinyl ether" patented technology

There is provided a copolymer containing tetrafluoroethylene unit and perfluoro (propyl vinyl ether) unit, wherein the copolymer has a content of perfluoro (propyl vinyl ether) unit of 4.3 to 6.0% by mass with respect to the whole of the monomer units, a melt flow rate at 372° C. of 0.7 to 1.4 g / 10 min, and the number of functional groups of 20 or less per 106 main-chain carbon atoms.

There is provided a copolymer containing tetrafluoroethylene unit and perfluoro (propyl vinyl ether) unit, wherein the copolymer has a content of perfluoro (propyl vinyl ether) unit of 5.6 to 6.38 by mass with respect to the whole of the monomer units, a melt flow rate at 372° C. of 17.1 to 23.0 g / 10 min, and the number of functional groups of 50 or less per 106 main-chain carbon atoms.

There is provided a copolymer containing tetrafluoroethylene unit and perfluoro(propyl vinyl ether) unit, wherein the copolymer has a content of perfluoro(propyl vinyl ether) unit of 5.5 to 6.5% by mass with respect to the whole of the monomer units, a melt flow rate at 372° C. of 36.1 to 49.9 g / 10 min, and the number of functional groups of 50 or less per 106 main-chain carbon atoms.

There is provided a copolymer containing tetrafluoroethylene unit and perfluoro(propyl vinyl ether) unit, wherein the copolymer has a content of perfluoro(propyl vinyl ether) unit of 4.4 to 5.28 by mass with respect to the whole of the monomer units, a melt flow rate at 372° C. of 11.0 to 16.0 g / 10 min, and the number of functional groups of 50 or less per 106 main-chain carbon atoms.

There is provided a copolymer containing tetrafluoroethylene unit and perfluoro(propyl vinyl ether) unit, wherein the copolymer has a content of perfluoro(propyl vinyl ether) unit of 6.2 to 7.1% by mass with respect to the whole of the monomer units, a melt flow rate at 372° C. of 28.0 to 35.9 g / 10 min, and the number of functional groups of 20 or less per 106 main-chain carbon atoms.

There is provided a copolymer containing tetrafluoroethylene unit and perfluoro(propyl vinyl ether) unit, wherein the copolymer has a content of perfluoro(propyl vinyl ether) unit of 3.7 to 4.4% by mass with respect to the whole of the monomer units, a melt flow rate at 372° C. of 28.0 to 34.0 g / 10 min, and the number of functional groups of 20 or less per 106 main-chain carbon atoms.

There is provided a powder coating material, comprising a copolymer comprising tetrafluoroethylene unit and perfluoro(propyl vinyl ether) unit, wherein the copolymer has a content of perfluoro(propyl vinyl ether) unit of 5.0 to 6.2% by mass with respect to the whole of the monomer units, the copolymer has a melt flow rate at 372° C. of 20.0 to 35.0 g / 10 min, and the copolymer has the number of functional groups of 100 or less per 106 main-chain carbon atoms.

There is provided a copolymer containing tetrafluoroethylene unit and perfluoro(propyl vinyl ether) unit, wherein the copolymer has a content of perfluoro(propyl vinyl ether) unit of 2.4 to 3.48 by mass with respect to the whole of the monomer units, a melt flow rate at 372° C. of 0.8 to 1.4 g / 10 min, and the number of functional groups of 20 or less per 106 main-chain carbon atoms.

There is provided a fluorine-containing copolymer comprising tetrafluoroethylene unit, hexafluoropropylene unit and perfluoro (propyl vinyl ether) unit, wherein the copolymer has a content of hexafluoropropylene unit of 9.4 to 10.1% by mass with respect to the whole of the monomer units, a content of perfluoro (propyl vinyl ether) unit of 0.8 to 1.78 by mass with respect to the whole of the monomer units, a melt flow rate at 372° C. of 4.5 to 8.5 g / 10 min, and a total number of a carbonyl group-containing terminal group, —CF═CF2 and —CH2OH per 106 main-chain carbon atoms of 90 or less.

There is provided a fluorine-containing copolymer comprising tetrafluoroethylene unit, hexafluoropropylene unit and perfluoro (propyl vinyl ether) unit, wherein the copolymer has a content of hexafluoropropylene unit of 8.5 to 9.5% by mass with respect to the whole of the monomer units, a content of perfluoro (propyl vinyl ether) unit of 1.2 to 1.88 by mass with respect to the whole of the monomer units, a melt flow rate at 372°° C. of 9.0 to 15.0 g / 10 min, and a total number of a carbonyl group-containing terminal group, —CF═CF2 and —CH2OH per 106 main-chain carbon atoms of 100 or less.

There is provided a fluorine-containing copolymer comprising tetrafluoroethylene unit, hexafluoropropylene unit and perfluoro (propyl vinyl ether) unit, wherein the copolymer has a content of hexafluoropropylene unit of 9.4 to 11.4% by mass with respect to the whole of the monomer units, a content of perfluoro (propyl vinyl ether) unit of 1.2 to 2.38 by mass with respect to the whole of the monomer units, a melt flow rate at 372° C. of 17.0 to 24.0 g / 10 min, and a total number of a carbonyl group-containing terminal group, —CF═CF2 and —CH2OH per 106 main-chain carbon atoms of 120 or less.

There is provided a fluorine-containing copolymer comprising tetrafluoroethylene unit, hexafluoropropylene unit and perfluoro(propyl vinyl ether) unit, wherein the copolymer has a content of hexafluoropropylene unit of 9.4 to 10.7% by mass with respect to the whole of the monomer units, a content of perfluoro(propyl vinyl ether) unit of 0.5 to 1.7% by mass with respect to the whole of the monomer units, and a melt flow rate at 372° C. of 13.0 to 18.0 g / 10 min.

There is provided a fluorine-containing copolymer comprising tetrafluoroethylene unit, hexafluoropropylene unit and perfluoro(propyl vinyl ether) unit, wherein the copolymer has a content of hexafluoropropylene unit of 11.5 to 12.5% by mass with respect to the whole of the monomer units, a content of perfluoro(propyl vinyl ether) unit of 0.3 to 0.8% by mass with respect to the whole of the monomer units, and a melt flow rate at 372° C. of 0.9 to 5.8 g / 10 min.

There is provided a fluorine-containing copolymer comprising tetrafluoroethylene unit, hexafluoropropylene unit and perfluoro (propyl vinyl ether) unit, wherein the copolymer has a content of hexafluoropropylene unit of 8.0 to 9.4% by mass with respect to the whole of the monomer units, a content of perfluoro (propyl vinyl ether) unit of 0.6 to 1.5% by mass with respect to the whole of the monomer units, a melt flow rate at 372° C. of 6.8 to 9.9 g / 10 min, and a total number of a carbonyl group-containing terminal group, —CF═CF2 and —CH2OH per 106 main-chain carbon atoms of 90 or less.

There is provided a fluorine-containing copolymer comprising tetrafluoroethylene unit, hexafluoropropylene unit and perfluoro (propyl vinyl ether) unit, wherein the copolymer has a content of hexafluoropropylene unit of 11.4 to 12.2% by mass with respect to the whole of the monomer units, a content of perfluoro (propyl vinyl ether) unit of 0.9 to 1.78 by mass with respect to the whole of the monomer units, a melt flow rate at 372° C. of 4.0 to 13.0 g / 10 min, and a total number of a carbonyl group-containing terminal group, —CF═CF2 and —CH2OH per 106 main-chain carbon atoms of 90 or less.

There is provided a fluorine-containing copolymer comprising tetrafluoroethylene unit, hexafluoropropylene unit and perfluoro(propyl vinyl ether) unit, wherein the copolymer has a content of hexafluoropropylene unit of 10.4 to 11.4% by mass with respect to the whole of the monomer units, a content of perfluoro(propyl vinyl ether) unit of 0.8 to 1.28 by mass with respect to the whole of the monomer units, a melt flow rate at 372° C. of 7.1 to 9.4 g / 10 min, and a total number of a carbonyl group-containing terminal group, —CF═CF2 and —CH2OH per 106 main-chain carbon atoms of 90 or less.

There is provided a fluorine-containing copolymer comprising tetrafluoroethylene unit, hexafluoropropylene unit and perfluoro (propyl vinyl ether) unit, wherein the copolymer has a content of hexafluoropropylene unit of 8.0 to 9.4% by mass with respect to the whole of the monomer units, a content of perfluoro (propyl vinyl ether) unit of 0.6 to 1.58 by mass with respect to the whole of the monomer units, a melt flow rate at 372° C. of 2.9 to 5.3 g / 10 min, and a total number of a carbonyl group-containing terminal group, —CF—CF2 and —CH2OH per 106 main-chain carbon atoms of 70 or less.

There is provided a fluorine-containing copolymer comprising tetrafluoroethylene unit, hexafluoropropylene unit and perfluoro (propyl vinyl ether) unit, wherein the copolymer has a content of hexafluoropropylene unit of 9.5 to 10.68 by mass with respect to the whole of the monomer units, a content of perfluoro (propyl vinyl ether) unit of 0.5 to 1.5% by mass with respect to the whole of the monomer units, and a melt flow rate at 372° C. of 0.8 to 4.4 g / 10 min.

There is provided a fluorine-containing copolymer comprising tetrafluoroethylene unit, hexafluoropropylene unit and perfluoro (propyl vinyl ether) unit, wherein the copolymer has a content of hexafluoropropylene unit of 10.3 to 11.6% by mass with respect to the whole of the monomer units, a content of perfluoro (propyl vinyl ether) unit of 1.4 to 2.68 by mass with respect to the whole of the monomer units, a melt flow rate at 372°° C. of 24.1 to 39.9 g / 10 min, and a total number of a carbonyl group-containing terminal group, —CF═CF2 and —CH2OH per 106 main-chain carbon atoms of 120 or less.

There is provided a fluorine-containing copolymer comprising tetrafluoroethylene unit, hexafluoropropylene unit and perfluoro (propyl vinyl ether) unit, wherein the copolymer has a content of hexafluoropropylene unit of 9.0 to 12.4% by mass with respect to the whole of the monomer units, a content of perfluoro (propyl vinyl ether) unit of 0.3 to 0.7% by mass with respect to the whole of the monomer units, a melt flow rate at 372° C. of 7.6 to 13.0 g / 10 min, and a total number of a carbonyl group-containing terminal group, —CF═CF2 and —CH2OH per 106 main-chain carbon atoms of 90 or less.

The invention provides perfluoroether fluororubber as well as a preparation method and application thereof. The perfluoroether fluororubber is in an A-B-A block form; the A block is formed by polymerizing tetrafluoroethylene and perfluoropropyl vinyl ether, and the molar ratio of the tetrafluoroethylene to the perfluoropropyl vinyl ether is (65 to 80): (20 to 35); the block B is formed by polymerizing tetrafluoroethylene and perfluoromethyl vinyl ether, and the molar ratio of the tetrafluoroethylene to the perfluoromethyl vinyl ether is (35-55): (65-45); and the mass fraction of the block B in the perfluoroether fluororubber is 50%-80%. The perfluoroether fluororubber has excellent high temperature resistance, can resist the high temperature of 320 DEG C, has excellent elongation, and is low in hardness, small in compression deformation and good in medium resistance and processability.

The invention provides a sealing element of an alkaline water electrolysis device and a preparation method of the sealing element. The method comprises the following steps: S1, adding polytetrafluoroethylene into a solvent, and carrying out first stirring to obtain a first membrane solution; s2, adding an initiator into the first membrane liquid, and performing second stirring to obtain second membrane liquid; s3, adding perfluoropropyl vinyl ether into the second membrane liquid, and performing third stirring to obtain third membrane liquid; s4, adding an inorganic filler into the third membrane solution, and performing fourth stirring to obtain a fourth membrane solution; and S5, the fourth membrane liquid is subjected to tape casting treatment and sintering treatment in sequence, and the alkaline electrolyzed water device sealing element is obtained. According to the invention, polytetrafluoroethylene is used as a base material, perfluoropropyl vinyl ether is introduced to modify the base material, and an inorganic filler is used as an auxiliary material, so that the alkaline water electrolysis device sealing element which has good sealing performance, mechanical strength and creep resistance and also shows excellent strong alkali aging resistance is prepared.

There is provided a fluorine-containing copolymer comprising tetrafluoroethylene unit, hexafluoropropylene unit and perfluoro(propyl vinyl ether) unit, wherein the copolymer has a content of hexafluoropropylene unit of 9.5 to 11.4% by mass with respect to the whole of the monomer units, a content of perfluoro(propyl vinyl ether) unit of 0.8 to 1.7% by mass with respect to the whole of the monomer units, a melt flow rate at 372° C. of 9.0 to 14.0 g / 10 min, and a total number of a carbonyl group-containing terminal group, —CF═CF2 and —CH2OH per 106 main-chain carbon atoms of 100 or less.

The invention relates to the field of flame retardants, in particular to modified magnesium hydroxide for a high-filling material and a preparation method of the modified magnesium hydroxide. The preparation method of the modified magnesium hydroxide comprises the following steps: step 1, carrying out surface amination treatment on magnesium hydroxide particles; step 2, reacting the aminated magnesium hydroxide particles with allylsulfonyl chloride to obtain activated magnesium hydroxide particles; 3, the activated magnesium hydroxide particles react with hydroxypropyl vinyl ether, and modified magnesium hydroxide is obtained. The modified magnesium hydroxide for the high-filling material prepared by the invention has excellent flame-retardant filling property when being applied to a high-molecular material, and compared with a traditional magnesium hydroxide filler, not only is the flame retardance of the high-molecular material improved, but also the mechanical strength and the impact resistance of the high-molecular material are well improved.

There is provided a fluorine-containing copolymer comprising tetrafluoroethylene unit, hexafluoropropylene unit and perfluoro(propyl vinyl ether) unit, wherein the copolymer has a content of hexafluoropropylene unit of 9.0 to 11.5% by mass with respect to the whole of the monomer units, a content of perfluoro(propyl vinyl ether) unit of 0.3 to 0.7% by mass with respect to the whole of the monomer units, and a melt flow rate at 372° C. of 0.9 to 7.5 g / 10 min.

The invention discloses a synthesis method of perfluoro-n-propyl vinyl ether, and in the method, an inorganic metal salt catalyst has a strong capability of being combined with fluorine, and can be combined with acyl fluoride of a dimer to form a transition state in a reaction process, so that the acyl fluoride becomes a leaving group after the temperature is raised, and the leaving group is removed. In order to reduce the content of hydrogen-containing ether generated in the synthesis process of the perfluoro-n-propyl vinyl ether, the embodiment of the invention further provides a method for synthesizing the perfluoro-n-propyl vinyl ether by catalyzing the decarboxylation reaction of hexafluoropropylene oxide dimer carboxylic acid by using transition metal Lewis acid. A hexafluoropropylene oxide dimer is used as a raw material and is catalyzed by transition metal salt to generate a decarboxylation reaction to generate the perfluoro-n-propyl vinyl ether, the reaction can effectively avoid the defect that hydrogen-containing ether byproducts are easy to generate in the synthesis method, and the separation method is simplified.

There is provided a fluorine-containing copolymer comprising tetrafluoroethylene unit, hexafluoropropylene unit and perfluoro (propyl vinyl ether) unit, wherein the copolymer has a content of hexafluoropropylene unit of 10.4 to 11.4% by mass with respect to the whole of the monomer units, a content of perfluoro (propyl vinyl ether) unit of 0.5 to 1.7% by mass with respect to the whole of the monomer units, a melt flow rate at 372° C. of 4.1 to 6.9 g / 10 min, and a total number of a carbonyl group-containing terminal group, —CF—CF2 and —CH2OH per 106 main-chain carbon atoms of 90 or less.

There is provided a fluorine-containing copolymer comprising tetrafluoroethylene unit, hexafluoropropylene unit and perfluoro(propyl vinyl ether) unit, wherein the copolymer has a content of hexafluoropropylene unit of 9.4 to 10.7% by mass with respect to the whole of the monomer units, a content of perfluoro(propyl vinyl ether) unit of 0.5 to 1.7% by mass with respect to the whole of the monomer units, and a melt flow rate at 372°C of 13.0 to 18.0 g / 10 min.

This application relates to the field of insulating materials, specifically disclosing a flexural insulating material, its preparation method, and a robot cable, comprising the following raw materials in parts by weight: 50-80 parts of low-density polyethylene, 30-40 parts of medium-density polyethylene, 30-40 parts of ethylene-tetrafluoroethylene-perfluoropropyl vinyl ether terpolymer, 1-20 parts of filler, 3-8 parts of compatibilizer, 0.1-5 parts of crosslinking agent, and 0.1-5 parts of co-crosslinking agent. This invention addresses the performance shortcomings of existing insulating materials, achieving a balance of flexural resistance, abrasion resistance, insulation stability, and excellent flexibility, thus meeting the stringent requirements of high-frequency cables used in robots / manipulators.

The invention discloses a perfluoropropyl vinyl ether-acrylonitrile copolymer as well as a preparation method and application thereof. The perfluoropropyl vinyl ether-acrylonitrile copolymer disclosed by the invention is formed by copolymerizing perfluoropropyl vinyl ether and acrylonitrile according to a molar ratio of 1: (2-4). The perfluoropropyl vinyl ether-acrylonitrile copolymer has the high pressure resistance of cyano groups, the flexibility of ether bonds and the hydrophobicity of fluorocarbon bonds, and has the advantages of being excellent in adhesive property, good in chemical stability, good in flexibility, balanced in hydrophilicity and hydrophobicity and the like; the lithium ion battery positive electrode material binder can improve the cycle life and the rate capability of the lithium ion battery under the conditions of high voltage and high load, and is suitable for large-scale industrial application.