Nylon 66 resin, nylon 66 filament and preparation method thereof

A technology of nylon and resin, applied in the field of spinning materials, to achieve the effect of simple process, low cost and easy operation

Inactive Publication Date: 2011-09-14
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 66 resin, nylon 66 filament and preparation method thereof
  • Nylon 66 resin, nylon 66 filament and preparation method thereof
  • Nylon 66 resin, nylon 66 filament and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046]

[0047] Such as figure 1 Shown: Stir and mix the above materials and distilled water in a storage tank evenly (the temperature is controlled at about 95°C), so that the concentration of the nylon 66 salt aqueous solution is maintained at about 60%. The above-mentioned materials are continuously fed into the preheater through the plunger pump, and after being preheated to 210°C, they enter the first tube and are continuously pushed into the first and second horizontal tubes, and the first tube enters the horizontal tube. , The material is maintained at 235-240℃, and then the material is pushed into the second pipe. After the material enters the second pipe, the temperature is controlled between 258-263℃. The water vapor in the material is evaporated and discharged through the exhaust pipe; nylon 66 salt The concentration increases, and polycondensation starts (the temperature is maintained at 258℃-262℃); the polymer melt enters the flash evaporator and the deaerator throu...

Embodiment 2

[0051]

[0052] Such as figure 1 Shown: Stir and mix the above materials and distilled water in a storage tank evenly (the temperature is controlled at about 95°C), so that the concentration of the nylon 66 salt aqueous solution is maintained at about 60%. The above-mentioned materials are continuously fed into the preheater through the plunger pump. After being preheated to 210°C, they enter the first tube and are continuously pushed into the horizontal tube and the horizontal tube. The high tube enters the horizontal tube. , The material is maintained at 238-243℃, and then the material is pushed into the second pipe. After the material enters the second pipe, the temperature is controlled between 260-265℃. The water vapor in the material is evaporated and discharged through the exhaust pipe; nylon 66 salt The concentration increases, and the polycondensation starts (the temperature is maintained at 260-265℃); the polymer melt passes through the decompression pump into the flas...

Embodiment 3

[0056]

[0057] Such as figure 1 Shown: Stir and mix the above materials and distilled water in a storage tank evenly (the temperature is controlled at about 95°C), so that the concentration of the nylon 66 salt aqueous solution is maintained at about 60%. The above-mentioned materials are continuously fed into the preheater through the plunger pump. After being preheated to 225°C, they enter the first tube and are continuously pushed into the first and second horizontal tubes, and the first tube enters the horizontal tube. , The material is maintained at 260-265℃, and then the material is pushed into the second pipe. After the material enters the second pipe, the temperature is controlled between 275-283℃. The water vapor in the material is evaporated and discharged through the exhaust pipe; nylon 66 salt The concentration increases, and the polycondensation starts (the temperature is maintained at 270-275°C); the polymer melt enters the flash evaporator and the deaerator throu...

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Abstract

The invention belongs to the field of spinning materials, and provides a nylon 66 resin. The nylon 66 resin is prepared by polymerization and post condensation polymerization reaction after nylon 66 salt melt and a compound of a first main group metal are mixed, wherein based on the weight of the nylon 66 salt, the weight of the compound of the first main group metal is 0.03 to 1.0 percent. The invention also provides a nylon 66 filament prepared from the nylon 66 resin. The nylon 66 filament is obtained by melt spinning of the nylon 66 resin. The fine denier or superfine denier nylon 66 filament with fineness of about 0.30 to 1.0dtex can be obtained by using the nylon 66 resin and a preparation method, the strength and the breaking elongation of the fibers meet the requirements of post weaving, the blank of producing the fine denier/superfine denier nylon 66 filament by adopting the conventional high-speed spinning method at home and abroad is filled, and the technological content and the additional value of the nylon 66 fiber product are promoted.

Description

Technical field [0001] The invention relates to the field of spinning materials, in particular to a nylon 66 resin, nylon 66 filaments and a preparation method thereof specially used for producing fine denier or superfine denier nylon 66 filaments. Background technique [0002] Generally speaking, the polymer materials that can be used for spinning include nylon (polyamide), polypropylene, polyethylene terephthalate and polyacrylonitrile. These materials can be processed by spinning to form fibers called nylon, polypropylene, polyester and acrylic, etc., which are used in the textile industry. Melt spinning is a commonly used spinning method, and various types of fibers suitable for spinning can be obtained through melt spinning. Generally, the single filament fineness of the fiber obtained by the melt spinning method can reach 1.0 dtex. Products that are spun with fibers of this fineness, such as clothing fabrics, have many advantages, and therefore have a broad market applica...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G69/26C08G69/28C08K3/24C08K3/32C08K3/30C08K5/098D01F6/90D01D5/08
Inventor 郝超伟来国桥蒋剑雄马清芳陆达天王峥
Owner HANGZHOU NORMAL UNIVERSITY
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