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Preparation method of functional polyester fibers

A polyester fiber and functional technology, which is applied in the field of preparation of functional polyester fibers, can solve the problems of affecting the mechanical properties of fibers and functional effects, increasing the complexity of the process, and the agglomeration of fiber powder, so as to improve the functional effect, The effect of good matrix dispersion and high powder concentration

Active Publication Date: 2012-10-10
ZHOUSHAN XINXIN CHEM FIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the process of masterbatch preparation, the surface modification of functional powders is generally carried out by coupling agent treatment to improve the dispersion of powder materials in the matrix. This method can effectively solve the above problems to a certain extent, but in the There is still a relatively serious powder agglomeration phenomenon in the obtained fiber, which seriously affects the mechanical properties and functional effect of the fiber.
On the other hand, this treatment method also increases the complexity of the process. The surface modification process is accompanied by the removal of the solvent and the treatment of the modified powder. Therefore, a more effective, simple and widely applicable method is sought. method to improve the functional effect of the fiber, and it is necessary to ensure that the fiber has good mechanical properties and has certain practical significance

Method used

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  • Preparation method of functional polyester fibers

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Experimental program
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Effect test

Embodiment 1

[0030] (1) Preparation of PBT functional masterbatch:

[0031] a) Mix and pulverize the CBT resin of model CBT160 and carbon nanotube powder with a particle size of 20nm to make a mixed powder with a CBT particle size of 100 mesh, wherein the content of the carbon nanotube powder is 30wt%;

[0032] b) Vacuum dry the above mixed powder. The water content of the system has a great influence on the performance of the CBT polymerization product. On the other hand, CBT resin is a high temperature sensitive substance. Therefore, the selected drying temperature is 80°C, and the drying time is 50h. The drying is completed After cooling the material to room temperature, take it out from the vacuum oven and store it dry;

[0033] c) Add 1wt% dispersant stearic acid to the dried mixed powder. The addition of stearic acid accelerates the dispersion process of carbon nanotube powder in the matrix on the one hand, and stearic acid can be used as a The heterogeneous nucleating agent can opt...

Embodiment 2

[0039] (1) Preparation of PBT functional masterbatch:

[0040] a) Mix and pulverize the CBT resin of model CBT160 and nano-titanium dioxide with a particle size of 40nm to make a mixed powder with a CBT particle size of 150 mesh, wherein the content of nano-titanium dioxide is 35wt%;

[0041] b) Vacuum dry the above mixed powder. The water content of the system has a great influence on the performance of the CBT polymerization product. On the other hand, CBT resin is a high temperature sensitive substance, so the selected drying temperature is 85°C, and the drying time is 48h. The drying is completed After cooling the material to room temperature, take it out from the vacuum oven and store it dry;

[0042] c) Add 2wt% stearamide fatty acid as a dispersant to the dried mixed powder. The addition of stearamide fatty acid on the one hand accelerates the dispersion process of nano-titanium dioxide in the matrix; on the other hand, stearamide fatty acid can be used as a Heterogene...

Embodiment 3

[0050] 1) Preparation of PBT functional masterbatch:

[0051] a) Mix and pulverize CBT resin of model CBT160 and tourmaline powder with a particle size of 60nm to make a mixed powder with a CBT particle size of 200 mesh, wherein the content of tourmaline powder is 40wt%;

[0052] b) Vacuum dry the above mixed powder. The water content of the system has a great influence on the performance of the CBT polymerization product. On the other hand, CBT resin is a high-temperature sensitive substance, so the selected drying temperature is 90 ° C, and the drying time is 45 hours. The drying is completed After cooling the material to room temperature, take it out from the vacuum oven and store it dry;

[0053] c) Add 2wt% dispersant stearic acid to the dried mixed powder. The addition of stearic acid accelerates the dispersion process of tourmaline powder in the matrix on the one hand, and on the other hand, stearic acid can be used as a The phase nucleating agent can optimize the crys...

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Abstract

The invention provides a preparation method of functional polyester fibers. The preparation method mainly comprises the following two steps of: firstly, mixing functional powders, polybutylene terephthalate cyclic oligomer (CBT) and a dispersing agent, performing reactive extrusion on the mixture by double screws to prepare a polybutylene terephthalate (PBT) functional master batch, wherein the functional powders are one of or several of a carbon nano tube, nano titanium dioxide, tourmaline powders, a nano-silver antibacterial agent, a nano silicon oxide and fluorescent powders; and secondly, blending and spinning the master batch, the PBT, polyethylene glycol terephthalate (PET) or polytrimethylene terephthalate (PTT) to prepare the functional polyester fibers. According to the method, the reactive extrusion process is adopted, the operation is simple and convenient, the process flow is shortened greatly, the obtained PBT functional master batch contains 30wt%-40wt% of the functional powders, and can be well dispersed in a base body, the compatibility of the obtained functional master batch and polyester polymer is good, and the fiber obtained by the method has an obvious functional effect.

Description

technical field [0001] The invention relates to the field of functional materials, in particular to a preparation method of functional polyester fibers. Background technique [0002] In the past two decades, my country has made great progress in the chemical fiber industry, including polyester, nylon, spandex and other fiber varieties, and the production technology is becoming more and more mature. Among them, polyester fiber is the most important and fastest-growing fiber variety. According to the official website data, by 2010, my country's chemical fiber output exceeded 300 million tons, reaching 308.97 million tons, while the output of polyester rose to 251.333 million tons, accounting for the total output of chemical fiber. four-fifths of. [0003] With the further development of the fiber industry, people's requirements for fibers are not limited to the functions of body covering and beauty in the past, but more focus on realizing the functionalization and diversified ...

Claims

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Application Information

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IPC IPC(8): D01F6/92D01F1/10D01D1/04D01D5/08
Inventor 王彪李莉王华平
Owner ZHOUSHAN XINXIN CHEM FIBER
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