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Nylon-6 resin, nylon-6 filament and preparation method thereof

A technology of nylon and resin, applied in the field of spinning materials, to achieve the effects of enhanced tensile strength, stable and excellent performance, and cost reduction

Active Publication Date: 2013-03-27
HANGZHOU NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] However, as far as the mentioned prior art is concerned, nylon fibers cannot be reasonably fine or ultra-fine denier, and the denier of the resulting fiber is still generally at least greater than 1.0dtex

Method used

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  • Nylon-6 resin, nylon-6 filament and preparation method thereof
  • Nylon-6 resin, nylon-6 filament and preparation method thereof
  • Nylon-6 resin, nylon-6 filament and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045]

[0046] like figure 1 Shown: Stir and mix the above materials in the storage tank evenly, and continuously send the above materials into the straight VK pipe through the feed pump, and the materials are polymerized by the ring-opening agent. The temperature control in the polymerization reaction is divided into three parts In the first stage, the material is in the upper section of the straight VK tube, and the temperature is controlled between 225-245°C; in the middle section of the straight VK tube, the temperature is controlled between 230-245°C; in the lower section of the straight VK tube, the temperature is controlled at 220-240°C In between, the polymer melt flows down to the bottom of the VK tube through layers of baffles, and is taken out by the discharge pump to maintain the liquid level in the tube. The polymerization time is 8 hours. The obtained polymer melt is washed with water, cut into pellets, and dried in vacuum to remove moisture and small molecul...

Embodiment 2

[0050]

[0051] like figure 1 Shown: Stir and mix the above materials in the storage tank evenly, and continuously send the above materials into the straight VK pipe through the feed pump, and the materials are polymerized by the ring-opening agent. The temperature control in the polymerization reaction is divided into three parts In the first stage, the material is in the upper section of the straight VK tube, and the temperature is controlled between 230 and 250°C; in the middle section of the straight VK tube, the temperature is controlled between 238 and 250°C; in the lower section of the straight VK tube, the temperature is controlled between 230 and 240°C In between, the polymer melt flows down to the bottom of the VK tube through layers of baffles, and is taken out by the discharge pump to maintain the liquid level in the tube. The polymerization time is 12 hours. The obtained polymer melt is washed with water, cut into pellets, and dried in vacuum to remove moisture...

Embodiment 3

[0055]

[0056] like figure 1Shown: Stir and mix the above materials in the storage tank evenly, and continuously send the above materials into the straight VK pipe through the feed pump, and the materials are polymerized by the ring-opening agent. The temperature control in the polymerization reaction is divided into three parts In the first stage, the material is in the upper section of the straight VK tube, and the temperature is controlled between 255 and 270°C; in the middle section of the straight VK tube, the temperature is controlled between 255 and 265°C; in the lower section of the straight VK tube, the temperature is controlled between 245 and 255°C In between, the polymer melt flows down to the bottom of the VK tube through layers of baffles, and is taken out by the discharge pump to maintain the liquid level in the tube. The polymerization time is 16 hours. The obtained polymer melt is washed with water, cut into pellets, and dried in vacuum to remove moisture ...

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Abstract

The invention relates to the field of spinning materials, and firstly provides a nylon-6 resin which is prepared by the polymerization reaction of a caprolactam monomer and fixed melt of compounds of metals in the first main group, wherein based on the total weight of the caprolactam monomer, the weight of the compounds of metals in the first main group is 0.03-1.0%. The invention also provides a nylon-6 filament which is prepared from the nylon-6 resin by melt spinning. By using the nylon-6 resin and the preparation method provided by the invention, the fine-denier or superfine-denier nylon-6 filament with a fineness of about 0.30-1.0dtex can be obtained. Both the strength and the breaking elongation of the fiber conform to post-weaving requirements. Besides, the invention fills up the gap that the fine-denier / superfine-denier nylon-6 filament can not be produced by the conventional high-speed spinning method home and abroad, and increases the technological content and added value of the nylon-6 fiber product.

Description

technical field [0001] The invention relates to the field of spinning materials, in particular to a nylon 6 resin specially used for producing fine or ultrafine denier nylon 6 filaments, nylon 6 filaments and a preparation method thereof. Background technique [0002] Generally speaking, the polymer materials that can be woven include nylon (polyamide), polypropylene, polyethylene terephthalate and polyacrylonitrile. These materials can be spun to form fibers such as nylon, polypropylene, polyester and acrylic, which can be used in the textile industry. Melt spinning is a commonly used spinning method, through which various fibers suitable for textiles can be obtained. Usually, the monofilament fineness of the fiber obtained by the melt spinning method can reach 1.0dtex. The products woven with such fineness fibers, such as clothing fabrics, have many advantages, so the market application space is broad. [0003] Yet along with the raising of people's living standard, als...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G69/14C08G69/16C08K3/16C08K3/32C08K3/30C08K5/098D01F6/90D01F1/10D01D5/08
Inventor 来国桥郝超伟马清芳蒋剑雄陆达天王峥
Owner HANGZHOU NORMAL UNIVERSITY
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