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Anti-aging high-strength polyethylene fiber and preparation method thereof

A high-strength polyethylene and anti-aging technology, applied in the field of anti-aging high-strength polyethylene fibers and their preparation, can solve the problems of low melting point, easy creep of polyethylene fibers, and low activation energy of polyethylene fibers.

Pending Publication Date: 2022-02-08
潘慧娟
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At the same time, polyethylene fibers have no side groups, and the intermolecular force mainly depends on van der Waals force, which makes the activation energy of polyethylene fibers small and the melting point low
Moreover, under the long-term external force, the molecular chains are prone to slip, and the polyethylene fiber is prone to creep.

Method used

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  • Anti-aging high-strength polyethylene fiber and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] An anti-aging high-strength polyethylene fiber mainly includes 10 parts of shell fiber spinning solution, 23 parts of nuclear fiber spinning solution and 1000 parts of protease hydrolysis solution in parts by weight.

[0038]A preparation method of anti-aging high-strength polyethylene fiber, the preparation method of the anti-aging high-strength polyethylene fiber mainly includes the following preparation steps:

[0039] (1) Preparation of composite fiber with shell-core structure: mix polylactic acid and polyvinyl succinate twice the mass of polylactic acid, and then add dimethyl sulfoxide and polyvinyl succinate 30 times the mass of polylactic acid. Nano-alumina with 0.8 times the mass of lactic acid was ultrasonicated at 30kHz for 8s, stirred at 1200r / min for 30min, and dialyzed in water at 4°C for 4h using a dialysis bag with a molecular weight cut-off of 1500 to obtain microcapsules; Under ultrasonic conditions, mix ethylene, microcapsules, titanium tetrachloride,...

Embodiment 2

[0044] An anti-aging high-strength polyethylene fiber mainly includes 20 parts of shell fiber spinning solution, 46 parts of nuclear fiber spinning solution and 2000 parts of protease hydrolysis solution in parts by weight.

[0045] A preparation method of anti-aging high-strength polyethylene fiber, the preparation method of the anti-aging high-strength polyethylene fiber mainly includes the following preparation steps:

[0046] (1) Preparation of composite fiber with shell-core structure: mix polylactic acid and polyvinyl succinate with 2.5 times the mass of polylactic acid, and then add dimethyl sulfoxide and polyvinyl succinate with 30 times the mass of polylactic acid. Nano-alumina with 0.9 times the mass of lactic acid was ultrasonicated at 35kHz for 10s, stirred at 1300r / min for 30min, and dialyzed in water at 4°C for 4h using a dialysis bag with a molecular weight cut-off of 1500 to obtain microcapsules; at 35kHz Under ultrasonic conditions, mix ethylene, microcapsules...

Embodiment 3

[0051] An anti-aging high-strength polyethylene fiber mainly includes 30 parts of shell fiber spinning solution, 72 parts of nuclear fiber spinning solution and 3000 parts of protease hydrolysis solution in parts by weight.

[0052] A preparation method of anti-aging high-strength polyethylene fiber, the preparation method of the anti-aging high-strength polyethylene fiber mainly includes the following preparation steps:

[0053] (1) Preparation of composite fiber with shell-core structure: mix polylactic acid and polyvinyl succinate 3 times the mass of polylactic acid, then add dimethyl sulfoxide and polyvinyl succinate 30 times the mass of polylactic acid Nano-alumina with 1.0 times the mass of lactic acid was sonicated under 40kHz ultrasonic conditions for 12s, stirred at 1500r / min for 30min, and dialyzed in water at 4°C for 4h using a dialysis bag with a molecular weight cut-off of 1500 to obtain microcapsules; at 40kHz Under ultrasonic conditions, mix ethylene, microcapsu...

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Abstract

The invention discloses an anti-aging high-strength polyethylene fiber and a preparation method thereof, and relates to the technical field of high polymer materials. The preparation method comprises the following steps: firstly, co-extruding a shell fiber obtained by copolymerization of ethylene and microcapsules and a core fiber formed by hexanedione phenol and 3-amino-2-methyl propylene to form a shell-core fiber; then carrying out low-frequency ultrasonic enzymolysis pressurization treatment, so that the shell fibers have an intercommunicated porous structure; then carrying out microwave rolling, enabling the core fiber to enter and be grafted into the porous structure of the shell fiber, and forming the shell-core fiber of a mortise and tenon joint structure; and finally, performing electric radiation stretching, forming three-dimensional network crosslinking in the shell-core fiber by taking the nano aluminum oxide as a crosslinking point, and polymerizing a pyrrole compound in the core fiber to form a polypyrrole heat-conducting path, so as to prepare the anti-aging high-strength polyethylene fiber with good antibacterial property, heat conductivity and creep resistance, wherein the microcapsules are obtained by wrapping nano aluminum oxide with polylactic acid and polyvinyl succinic acid glycol ester.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to an anti-aging high-strength polyethylene fiber and a preparation method thereof. Background technique [0002] With the development of industry and the rapid improvement of technology, polyethylene fiber is a kind of fiber with many excellent properties such as high strength, high modulus, light weight, good chemical stability, good light resistance, low temperature resistance and long service life. fiber. Based on these excellent properties, polyethylene fibers are used in the production of soft bulletproof clothing, stab-proof clothing, lightweight bulletproof helmets, bulletproof armor, cables for ships and ocean-going ships, deep-sea anti-wind and wave cages, fishing nets, sailing boats, fishing rods, rackets, and medical implants. It is an excellent material for plastic suture materials, etc., and has mature applications in bulletproof, rope and other fields. [...

Claims

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Application Information

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IPC IPC(8): D01F8/06D01F8/16D01F11/06D01F11/08D01F11/16D01D5/34
CPCD01F8/06D01F8/16D01F11/06D01F11/08D01F11/16D01D5/34
Inventor 潘慧娟
Owner 潘慧娟
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