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Preparation method of airgel modified synthetic fiber and prepared synthetic fiber

A synthetic fiber and airgel technology, applied in the direction of one-component polyolefin rayon, one-component polyamide rayon, one-component polyester rayon, etc., to achieve improved heat insulation performance and good ventilation Sexuality and sweat absorption ability, the effect of reducing thermal conductivity

Active Publication Date: 2015-11-04
陕西盟创纳米新型材料有限责任公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

How to use airgel to prepare synthetic fibers with better performance has not been proposed by researchers in this field.

Method used

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  • Preparation method of airgel modified synthetic fiber and prepared synthetic fiber
  • Preparation method of airgel modified synthetic fiber and prepared synthetic fiber
  • Preparation method of airgel modified synthetic fiber and prepared synthetic fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] PET (polyethylene terephthalate, DuPont FR530), 138 kg, airgel powder is mcf-40 (Shaanxi Mengchuang Nano New Material Co., Ltd., thermal conductivity 0.01w / m.k, density 40kg / m 3 ) 4 kg, placed in a mixing device with screw extrusion and heated to 250 ° C to form a uniform melt and make a masterbatch; through the spinneret hole of the spinning machine (Longkou Huarui Machinery Factory, Longkou City), The spinneret hole diameter is 0.25 mm. The sprayed melt stream is cooled and solidified into filaments by the cooling airflow, forming airgel-modified synthetic fibers. Its thermal conductivity is measured to be 0.02w / m.k, which is 0.017m / m.k lower than that of traditional polyester fiber spinning cotton (0.037w / m.k). The bulk density and other performance parameters are shown in Table 1.

[0020] Table 1: Product performance of embodiment 1

[0021]

Embodiment 2

[0023] PA (polyamide No. 600, Shanghai Haohua Chemical Co., Ltd.) 115 kg, mcf-40 airgel powder 4 kg, placed in a mixer with screw extrusion and heated to 250 ° C to form a uniform melt, Through the spinneret hole, the diameter of the spinneret hole is 0.25 mm. The sprayed melt stream is cooled and solidified by the cooling airflow to form filaments to form airgel modified polyester fibers. The measured thermal conductivity is 0.03w / m.k, which is 0.017m / m.k lower than that of traditional synthetic fiber spinning cotton (0.83w / m.k); see Table 2 for bulk density and other performance parameters.

[0024] Table 2: Product performance of embodiment 2

[0025]

Embodiment 3

[0027] 95 kg of PP (polypropylene, Changzhou Chixin Plastic Industry Co., Ltd.), 4 kg of mcf-40 airgel powder, placed in a mixer with screw extrusion and heated to 180 ° C to form a uniform melt, Through the spinneret hole, the diameter of the spinneret hole is 0.30 mm. The sprayed melt stream is cooled and solidified into filaments by the cooling airflow, forming airgel-modified synthetic fibers. The measured thermal conductivity is 0.025w / m.k, which is 0.017m / m.k lower than that of traditional polyester fiber spun cotton (0.047w / m.k); see Table 3 for bulk density and other performance parameters.

[0028] Table 3: Product performance of embodiment 3

[0029]

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Abstract

The invention provides a preparation method of an aerogel modified synthetic fiber. The preparation method comprises the steps of: 1) mixing aerogel powder and polymer resin at a mass ratio of 1:(20-35), and milling and granulating in a mixing mill; 2) performing fusion spinning on master batches obtained by milling and granulating, so as to obtain the synthetic fiber. The invention further provides a synthetic fiber prepared by the method. According to the preparation method provided by the invention, the aerogel is applied to the field of synthetic fibers, the preparation method of the synthetic fiber is simple, the heat-insulating property of the synthetic fiber is improved, the coefficient of heat conductivity is reduced to 0.015-0.02w / m.k, and the coefficient of heat conductivity of a material is greatly reduced; furthermore, the density of the aerogel is small, so that the whole volume weight of the synthetic fiber is greatly reduced; due to the porosity and adsorptive action of the aerogel, the air permeability and the sweat-absorbing capability are good, and various performances are greatly superior to those of the traditional material.

Description

technical field [0001] The invention belongs to the field of prevention and control materials, and in particular relates to a preparation method of an airgel modified synthetic fiber and the prepared synthetic fiber. Background technique [0002] Basic necessities of life, food, housing, and transportation are the first in people's necessary living conditions, which shows its importance. The clothes we wear and the quilts we cover are all made of cloth. At first, people discovered that naturally grown cotton has the characteristics of long fibers and can be used for spinning and weaving. Later, people discovered that many plant fibers can be spun and weaving, such as hemp fiber, soy fiber, bamboo fiber. But these fibers are gifted by nature, and their sources are limited, so people later discovered that many synthetic materials can be drawn, such as nylon, acrylic, polypropylene, etc. These silks can also be used for weaving, and many properties such as flexibility and not ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F6/92D01F6/90D01F6/46D01F1/10
Inventor 陈国张君
Owner 陕西盟创纳米新型材料有限责任公司
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