Fluorinated cross-linked polyethylene high temperature anticorrosion powder
A technology of cross-linked polyethylene and anti-corrosion powder is applied in the field of high-temperature anti-corrosion materials, which can solve the problems of troublesome production, high cost and poor high temperature resistance.
Active Publication Date: 2016-08-24
河北奥磊防腐设备有限公司
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AI Technical Summary
Problems solved by technology
[0004] The invention provides a fluorinated cross-linked polyethylene high-temperature anti-corrosion powder to solve the problems that the existing high-temperature anti-corrosion powder is not suitable for production at about 130 degrees Celsius, and the cost is high, the production is troublesome, and the high temperature resistance is poor.
Method used
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Experimental program
Comparison scheme
Effect test
example 1
[0021] 53% cross-linked linear polyethylene, 2% glass beads with a particle size range of 10-50 microns, 33% fine powder of ethylene-tetrafluoroethylene copolymer, 6% ultrafine polytetrafluoroethylene recycled material, polyolefin adhesive Binder 6%;
[0022] Above-mentioned fluorinated cross-linked polyethylene high temperature anticorrosion powder, its preparation method is as follows:
[0023] The first step: 53% cross-linked linear polyethylene, 2% glass beads with a particle size range of 10-50 microns, 33% soluble ethylene-tetrafluoroethylene copolymer fine powder, 6% ultrafine polytetrafluoroethylene Vinyl fluoride regenerated material, 6% polyolefin binder, under the condition of not more than 60 degrees, put it into the mixer and knead for 30 minutes until it is uniform, and the mixture is granular at this time;
[0024] The second step: put the mixed material into the heating extruder, the temperature of the extruder is controlled at 200 degrees Celsius, and after t...
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Abstract
The invention relates to the technical field of high-temperature corrosion protection materials and discloses fluoride crosslinked polyethylene high-temperature corrosion protection powder. The fluoride crosslinked polyethylene high-temperature corrosion protection powder is formed by mixing, by weight, 50-60% of crosslinked linear polyethylene, 2-5% of glass beads, 30-40% of ethylene-tetrafluoroethylene copolymer fine powder, 6-18% of superfine teflon reclaimed materials, and 5-12% of polyolefin binders. The mixture obtained according to the proportion is put into a mixing mill, is mixed to be even under the technological condition with the temperature not exceeding 60 DEG C and then is put into an extruder, strip-shaped semi-finished products are pulled out, cutting and granulation are carried out on the strip-shaped semi-finished products through a granulator after the strip-shaped semi-finished products are cooled in water, the diameter of particles obtained after cutting is controlled to be 2 mm, then the particles are put into a pulverizer for grinding, obtained powder particles are controlled to be in about eighty meshes and then are poured into a fine sieving machine, the powder particles lower than or equal to 80 meshes fall to be position below the fine sieving machine to be recycled, and then the fluoride crosslinked polyethylene high-temperature corrosion protection powder is obtained.
Description
technical field [0001] The invention relates to the technical field of high-temperature anticorrosion materials, in particular to a fluorinated cross-linked polyethylene high-temperature anticorrosion powder. Background technique [0002] In the chemical industry, chemical equipment needs to withstand the erosion of a variety of high-temperature corrosive chemical materials. At present, most of the pipeline anti-corrosion is simply using modified polyolefin materials for anti-corrosion, but the use temperature of such materials is low, and the limit temperature is 90 degrees. The effect is good at the use temperature of 80 degrees, and the material will fail if it is higher than 80 degrees. Usually, the anti-corrosion material above 80 degrees can only be made of polytetrafluoroethylene to make anti-corrosion coating. This kind of anti-corrosion coating has good corrosion effect and large capacity. The corrosion of most media has good temperature resistance, but the producti...
Claims
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IPC IPC(8): C08L23/04C08L23/08C08L27/18C08K7/20
CPCC08K2201/003C08L23/26C08L2205/035C08L23/0892C08L27/18C08L23/00C08K7/20
Inventor 石风海
Owner 河北奥磊防腐设备有限公司