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Preparation method of matted UHMWPE (ultra-high-molecular-weight polyethylene) fiber

An ultra-high molecular weight, polyethylene fiber technology, applied in the direction of single-component polyolefin rayon, fiber chemical characteristics, rayon manufacturing, etc., can solve problems such as reflection and flickering, and achieve reduced dosage, retention performance, and retention The effect of mechanical properties

Active Publication Date: 2019-02-15
龙游龙纤新材料有限公司
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  • Abstract
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Problems solved by technology

[0002] Existing ultra-high molecular weight polyethylene fibers are regular in shape and have obvious reflections and flickering phenomena; therefore, in order to eliminate this phenomenon and make the fibers have a matting effect, CN106400154A discloses a preparation method for a full-dull ultra-high molecular weight polyethylene fiber. The method of directly adding matting agent during batching

Method used

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  • Preparation method of matted UHMWPE (ultra-high-molecular-weight polyethylene) fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Embodiment 1 A kind of preparation method of matting mother liquor for ultra-high molecular weight polyethylene fiber

[0032] Step 1) Grind and mix 40 g of native nano-titanium dioxide, 1.8 g of sodium lauryl sulfate, 0.5 g of polyvinyl alcohol and 57.7 g of white mineral oil to obtain a high-concentration matting mother liquor, wherein the largest concentration of the native nano-matting agent is The particle diameter is less than 2 microns, and the average particle size is less than 0.5 microns;

[0033] Step 2) Add 48.9g of white mineral oil, 0.5g of sodium lauryl sulfate, 0.6g of Natrosol AT250 and 50g of the high-concentration matting mother liquor obtained in step 1) into high-speed shearing equipment for high-speed shearing to obtain ultra-high molecular weight polyethylene Delustering master solution for fibers.

[0034] Calculated by mass percentage, the matting mother liquor is composed of 20% matting agent, 78.2% solvent, 1.2% surfactant, 0.25% dispersant, 0....

Embodiment 2

[0035] Embodiment 2 A kind of preparation method of matting mother liquor for ultra-high molecular weight polyethylene fiber

[0036] Step 1) Grind and mix 42g of native nano-silica agent, 2g of nonylphenol polyoxyethylene (10) ether-2-sulfosuccinic acid monoester disodium salt, 0.5g of EFKA4560 and 55.5g of white mineral oil , to obtain high-concentration matting mother liquor;

[0037] Step 2) 61 g of white mineral oil, 1 g of nonylphenol polyoxyethylene (10) ether-2-sulfosuccinic acid monoester disodium salt, 0.6 g of Natrosol AT250 and 37.4 g of the high-concentration matting mother liquor obtained in step 1) Add high-speed shearing equipment for high-speed shearing to obtain a matting mother liquor for ultra-high molecular weight polyethylene fibers.

[0038] Calculated by mass percentage, the matting mother liquor is composed of 25% matting agent, 72.5% solvent, 1.5% surfactant, 0.2% dispersant, 0.4% thickener and the balance of auxiliary agents.

Embodiment 3

[0039] Embodiment 3 A kind of preparation method of full-dull ultra-high molecular weight polyethylene fiber

[0040] 8g of ultra-high molecular weight polyethylene, 92g of white mineral oil and 0.32g of the extinction mother liquor prepared by the method of Example 1 were injected into the batching kettle; while stirring, they were fed into a twin-screw extruder for extrusion spinning, and then extracted, dried and Multi-stage drawing, so as to prepare a full-dull ultra-high molecular weight polyethylene fiber with a content of 0.8% of a matting agent.

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Abstract

The invention provides a preparation method of a matted UHMWPE (ultra-high-molecular-weight polyethylene) fiber. The method comprises the following steps: step 1) grinding and uniformly mixing a primary nano-matting agent, a surfactant, a dispersant and a solvent to obtain high-concentration matting mother liquor; step 2) adding a solvent, a surfactant, a thickener and the high-concentration matting mother liquor obtained in step 1) to high-speed shear equipment for high-speed shear to obtain matting mother liquor for the UHMWPE fiber, wherein the mass ratio of the matting agent to the solventin the matting mother liquor obtained in step 2) is 1:1-9, and the adding ratio of the solvent to the primary nano-matting agent in step 1) is larger than 1:1.

Description

technical field [0001] The invention belongs to the field of ultra-high molecular weight polyethylene fiber production, in particular to a method for preparing a matting mother liquor for ultra-high molecular weight polyethylene fiber. Background technique [0002] Existing ultra-high molecular weight polyethylene fibers are regular in shape and have obvious reflections and flashing phenomena; therefore, in order to eliminate this phenomenon and make the fibers have a matting effect, CN106400154A discloses a method for preparing a full-dull ultra-high molecular weight polyethylene fiber. The method of adding matting agent directly when batching. [0003] CN107699968A discloses a semi-dull special-shaped ultra-high molecular weight polyethylene fiber and its preparation method. The fiber is made of ultra-high molecular weight polyethylene and white oil as raw materials, and is made by adding nano-scale titanium dioxide as a matting agent. , and then wet-spun through a specia...

Claims

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Application Information

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IPC IPC(8): D01F6/46D01F1/10
CPCD01F1/10D01F6/46
Inventor 陈宏
Owner 龙游龙纤新材料有限公司
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