Buoyancy ultrahigh molecular weight polyethylene fibers and preparation method thereof

An ultra-high molecular weight, polyethylene fiber technology, applied in the direction of single-component polyolefin artificial filament, fiber chemical characteristics, rayon manufacturing, etc., can solve the problems of bulletproof, anti-stab and anti-cut products, and achieve good floating performance , light weight, and improved floating performance

An ultra-high molecular weight, polyethylene fiber technology, applied in the direction of single-component polyolefin artificial filament, fiber chemical characteristics, rayon manufacturing, etc., can solve the problems of bulletproof, anti-stab and anti-cut products, and achieve good floating performance , light weight, and improved floating performance

CN110965145AActive Publication Date: 2020-04-07HUNAN ZHONGTAI SPECIAL EQUIP
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A preparation method for buoyant ultra-high molecular weight polyethylene fibers, comprising the steps of:

[0025] (1) Preheat 71.68g of epoxy resin, heat to 60°C for 30min, degas at 50°C for 1h, add 4.72g of low molecular weight polyamide resin and stir quickly, put it into the drying oven again for degassing for 60min; continue stirring Epoxy resin, add 7.13g hollow glass microspheres while stirring, mix well and let stand for 40min;

[0026] (2) Prepare the coupling agent KH-560 and ethanol solution to form a silane solution with a mass fraction of 15%-, stir the silane solution for 40 minutes, add it to step (1), stir rapidly for 65 minutes, and dry at 80°C for 3.2 hours , to obtain activated hollow glass microspheres;

[0027] (3) Mix the hollow glass microspheres obtained in step (2) with the ultra-high molecular weight polyethylene solution in a swelling kettle at a mass ratio of 1:50, stir and heat up to 30°C, and keep warm for 1.2h to form a spinning fluid ;...

Embodiment 2

[0030] A preparation method for buoyant ultra-high molecular weight polyethylene fibers, comprising the steps of:

[0031] (1) Preheat 71.68g of epoxy resin, heat it to 70°C for 25min, degas at 60°C for 1h, add 4.72g of low molecular weight polyamide resin and stir quickly, put it into the drying oven again for degassing for 55min; continue stirring Epoxy resin, add 7.13g hollow glass microspheres while stirring, mix well and let stand for 45min;

[0032] (2) Prepare the coupling agent KH-560 and ethanol solution to form a silane solution with a mass fraction of 18%, stir the silane solution for 48 minutes, add it to step (1), stir rapidly for 56 minutes, and dry at 90°C for 2.8 hours. Obtain the activated hollow glass microspheres;

[0033] (3) Mix the hollow glass microspheres obtained in step (2) with the ultra-high molecular weight polyethylene solution in a swelling kettle at a mass ratio of 1:60, stir and heat up to 40°C, and keep warm for 1.0h to form a spinning fluid ...

Embodiment 3

[0036] A preparation method for buoyant ultra-high molecular weight polyethylene fibers, comprising the steps of:

[0037] (1) Preheat 71.68g of epoxy resin, heat it to 85°C for 20min, degas at 75°C for 1h, add 4.72g of low molecular weight polyamide resin and stir quickly, put it into the drying oven again for degassing for 50min; continue stirring Epoxy resin, add 7.13g hollow glass microspheres while stirring, mix well and let stand for 50min;

[0038] (2) Prepare the coupling agent KH-560 and ethanol solution to form a silane solution with a mass fraction of 20%, stir the silane solution for 55 minutes, add it to step (1), stir it rapidly for 50 minutes, and dry it at 100°C for 2.5 hours. Obtain the activated hollow glass microspheres;

[0039] (3) Mix the hollow glass microspheres obtained in step (2) with the ultra-high molecular weight polyethylene solution in a swelling kettle at a mass ratio of 1:70, stir and heat up to 30°C, and keep warm for 1.2h to form a spinning...

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Abstract

The invention belongs to the technical field of fiber preparation and discloses buoyancy ultrahigh molecular weight polyethylene fibers and a preparation method thereof. The method comprises the following steps of (1) preheating epoxy resin, heating to 60 -85 DEG C, maintaining for 20 -30 min, degassing for 1 h, adding a curing agent and stirring rapidly upon putting in, and degassing again; and adding hollow glass microbeads while stirring, uniformly mixing, and standing; (2) stirring a silane solution and adding the solution into the step (1), rapidly stirring the mixture for 50 -65 min, anddrying for 2.5 -3.2 hours at 80 -100 DEG C to obtain activated hollow glass microbeads; (3) mixing the hollow glass microbeads with an ultrahigh molecular weight polyethylene solution, stirring and heating to 30 -70 DEG C, maintaining the temperature for 1 -1.2 hours and then forming spinning fluid; and (4) injecting the spinning fluid into a double-screw extruder from a feeding kettle to obtainjelly precursor yarns, and preparing the buoyancy ultrahigh molecular weight polyethylene fibers through extraction and multi-multiple stretching. The ultrahigh molecular weight polyethylene fibers prepared by the method in the invention have the advantages of stable structure, good performance, light weight and good floating performance.

Description

technical field [0001] The invention belongs to the technical field of fiber preparation, and relates to a buoyancy ultra-high molecular weight polyethylene fiber and a preparation method thereof. Background technique [0002] Ultra-high molecular weight polyethylene fiber is a fiber made from ultra-high molecular weight polyethylene. The ultra-high molecular weight makes the ultra-high molecular weight polyethylene fiber have excellent properties such as strong wear resistance, good lubricity, high strength, stable chemical properties, and anti-aging. Therefore, ultra-high molecular weight polyethylene fibers are used in national defense military equipment (for example, body armor, helicopters, tanks and ship armor protection panels, etc.), aerospace (for example, wingtip structures of various aircraft, decelerators used for aircraft landing, etc.) Parachutes, ropes used by aircraft to suspend heavy objects, etc.), civil (for example, anti-shock, anti-corrosion, anti-corro...

Claims

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Application Information

Patent Timeline
07 Apr 2020
Publication
CN110965145A
IPC
D01F6/46; D01F1/10
CPC
D01F6/46; D01F1/10
Inventors
杨恒; 高波