Molten preparation method of ultrahigh molecular weight polyethylene fiber
An ultra-high molecular weight, polyethylene fiber technology, applied in the direction of melt spinning, single-component polyolefin artificial filament, fiber chemical characteristics, etc., can solve the problem of fiber wear resistance and impact resistance decline, and nanomaterials are not easy to disperse , UHMWPE degradation and other issues, to achieve the effect of less raw material consumption, large-scale industrial production, and improved processing performance
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[0021] Example 1:
[0022] a. Mix 55wt% of ultra-high molecular weight polyethylene with a molecular weight of 3 million, 40wt% of organic nano-titanium phosphate prepared by melting and adsorption of stearylamine, and 5wt% of antioxidant 1010 in a high-speed mixer, and then add the twin screw The modified masterbatch is obtained by mixing and granulating in the extruder. The screw temperature is 150~170℃ in the feed section, 180~220℃ in the compression section, and 220~240℃ in the metering section.
[0023] b. Mix 5wt% modified masterbatch with 94wt% ultra-high molecular weight polyethylene with a molecular weight of 3 million and 1wt% fluoroelastomer in a high-speed mixer, then add it to the twin-screw extruder for melt spinning, and cool in a water bath The nascent fiber is obtained. The temperature of each section of the screw is 150-170℃ in the feed section, 180-220℃ in the compression section, 220-240℃ in the metering section, 230℃ in the spinning assembly, and 10℃ in the wat...
Example Embodiment
[0025] Example 2:
[0026] a. Mix 75wt% of ultra-high molecular weight polyethylene with a molecular weight of 500,000 and 23wt% of organic nanoaluminum phosphate prepared by melting and adsorption of stearylamine and 2wt% of antioxidant 1010 in a high-speed mixer, and then add the twin screw The modified masterbatch is obtained by mixing and granulating in the extruder. The screw temperature is 160~180℃ in the feed section, 190~230℃ in the compression section, and 230~250℃ in the metering section.
[0027] b. Mix 10wt% modified masterbatch with 85wt% ultra-high molecular weight polyethylene with a molecular weight of 500,000 and 5wt% fluoroelastomer in a high-speed mixer, then add it to the twin-screw extruder for melt spinning, and cool in a water bath The nascent fiber is obtained, and the temperature of each section of the screw is 160-180℃ in the feed section, 190-230℃ in the compression section, 240-260℃ in the metering section, 245℃ in the spinning assembly, and 20℃ in the ...
Example Embodiment
[0029] Example 3:
[0030] a. Mix 70wt% of ultra-high molecular weight polyethylene with a molecular weight of 1.5 million and 20wt% of organic nano-manganese thiophosphite prepared by melting and adsorption of stearylamine, and 10wt% of antioxidant 1010 in a high-speed mixer. Then, The modified masterbatch is obtained by mixing and granulating in a twin-screw extruder. The screw temperature is 170~190℃ in the feeding section, 190~220℃ in the compression section, and 220~250℃ in the metering section.
[0031] b. Mix 7.5wt% modified masterbatch with 92wt% ultra-high molecular weight polyethylene with a molecular weight of 1.5 million and 0.5wt% fluoroelastomer in a high-speed mixer, and then add it to the twin-screw extruder for melt spinning. The nascent fiber is obtained by cooling in a water bath. The temperature of each section of the screw is 170~190℃ in the feed section, 190~220℃ in the compression section, 220~240℃ in the metering section, 230℃ in the spinning assembly, and ...
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