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Method for producing ultra-high molecular weight polyethylene colored fine denier fiber

A technology of ultra-high molecular weight and fine denier fibers, which is applied in the direction of single-component polyolefin artificial filaments, fiber treatment, and adding pigments to spinning solutions. Poor performance, uneven dyeing and other problems, achieve bright color, excellent quality, and overcome the effect of waste liquid discharge

Active Publication Date: 2011-08-10
ZHEJIANG JINHAO NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the ultra-high molecular weight polyethylene powder is directly mixed with inorganic pigment additives, the pigment is easy to agglomerate and the dispersion is poor, which will easily cause uneven dyeing. After the product is dyed, the color aging is not high because of the chemical inertness of polyethylene.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Embodiment 1, the ultrahigh molecular weight polyethylene colored fine denier fiber of preparation 2D / 164F

[0012] The ultra-high molecular weight polyethylene powder (the relative average molecular mass is 4.5 million), and the solvent white oil are respectively injected into the unwrapping kettle at room temperature according to the nominal concentration of 4% (weight), and the macromolecular intermolecular space is moderately released by high shear under the protection of nitrogen. entanglement, shear time 5 minutes, shear speed 1000 seconds -1 , to form a homogeneous emulsion mixed solution, in the homogeneous emulsion mixed solution, the emulsion made by uniformly and continuously adding nano-scale non-toxic colored pigments according to the polyethylene weight percentage of 0.2%, and further shearing, and then the mixed solution at normal temperature Through the storage tank, quantitatively feed the screw extruder to extrude and spin while stirring. The diameter ...

Embodiment 2

[0013] Embodiment 2, the ultrahigh molecular weight polyethylene colored fine denier fiber of preparation 2.5D / 164F

[0014] The ultra-high molecular weight polyethylene powder (the relative average molecular mass is 4.5 million), and the solvent white oil are respectively injected into the unwrapping kettle at room temperature according to the nominal concentration of 15% (weight), and the macromolecular intermolecular space is moderately released by high shear under the protection of nitrogen. entanglement, shear time 20 minutes, shear speed 3500 seconds -1 , to form a homogeneous emulsion mixed solution, in the homogeneous emulsion mixed solution, uniformly and continuously add the emulsion made of nano-scale non-toxic colored pigments according to polyethylene weight percentage 5%, and further shear, and then the mixed solution at normal temperature Through the storage tank, quantitatively feed the screw extruder to extrude and spin while stirring. The diameter of the extr...

Embodiment 3

[0015] Embodiment 3, the ultrahigh molecular weight polyethylene colored fine denier fiber of preparation 2.5D / 164F

[0016] The ultra-high molecular weight polyethylene powder (the relative average molecular mass is 4.5 million), and the solvent white oil are respectively injected into the unwrapping kettle at room temperature according to the nominal concentration of 10% (weight), and under the protection of nitrogen, the macromolecular space is moderately released by high shear. entanglement, shear time 15 minutes, shear speed 2500 seconds -1 , to form a homogeneous emulsion mixed solution, in the homogeneous emulsion mixed solution, uniformly and continuously add the emulsion made of nano-scale non-toxic colored pigments according to the weight percentage of polyethylene in the homogeneous emulsion mixed solution, and further shear, and then the mixed solution at normal temperature Through the storage tank, quantitatively feed the screw extruder to extrude and spin while s...

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Abstract

The invention discloses a method for producing an ultra-high molecular weight polyethylene colored fine denier fiber, relating to the technical field of polymer materials and comprising the following steps of: pouring ultra-high molecular weight polyethylene powder and solvent into an untwisting kettle according to the proportion; properly untwisting ultra-high molecular weight polyethylene macromolecules in the solvent by high shearing to form uniform emulsion-shaped mixed solution; then preparing nontoxic and harmless nanometer pigment grains into emulsion by using a mixing technology, evenly and continuously adding the emulsion into the emulsion-shaped mixed solution for further shearing; and finally, quantifying the emulsion-shaped mixed solution by the storage tank while stirring andfeeding the emulsion-shaped mixed solution into a screw extruder to extrude and spin. The fiber not only has excellent qualities of the conventional high-strength high-modulus polyethylene fiber, butalso solves the problems of waste liquid discharge in the after finishing process and realizes the environmental protection of raw materials, production process and products.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a production method of ultra-high molecular weight polyethylene colored fine denier fibers. Background technique [0002] Ultra-high molecular weight polyethylene fiber has mechanical properties unmatched by other high-performance fibers. Low density, maximum specific strength and specific modulus, these properties surpass metal materials. More importantly, it also has good energy absorption characteristics, which is most suitable for absorbing the impact energy of low-speed fragments, and has the best bulletproof performance, so it is an ideal bulletproof material. At the same time, it is also widely used in security and military affairs. It is the best cable material and high-tech armament material at present. In addition, ultra-high molecular weight polyethylene fibers can be widely used in cut-resistant gloves, bulletproof vests, bulletproof helmets, etc. In addi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01D5/40D01D1/02D01F1/04D01F6/04
Inventor 胡盼盼张间芳杨福康康德余
Owner ZHEJIANG JINHAO NEW MATERIALS CO LTD
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