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Nano inorganic powder coated high molecular fiber and its preparing method

A polymer fiber, nano-inorganic technology, applied in fiber types, fiber processing, textiles and papermaking, etc., can solve problems such as no public reports.

Inactive Publication Date: 2007-10-10
UNIV OF SCI & TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are no public reports on the preparation of nano-inorganic powder-coated chemical fiber composite materials.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0013] Example: After repeated washing with ethanol and distilled water, the PBO fibers were immersed in a modified solution prepared by polyphosphoric acid and absolute ethanol at a volume ratio of 1:1-3 for 1-60 minutes, and then washed repeatedly with distilled water to completely remove residual Dry polyphosphoric acid at 50-150°C for 1-60 minutes, and set aside.

[0014] Take 1~3g nanometer TiO 2 Disperse the powder in 50-500ml distilled water, add 0.01-0.5g sodium polyphosphate and 0.01-0.3g sodium dodecylbenzenesulfonate as dispersant at the same time, adjust the pH value to 7-12 with ammonia water, and ultrasonically shake for 20 ~120min, prepare uniformly dispersed nano-TiO 2 Powder emulsion. Nano TiO 2 Put the powder emulsion in a constant temperature water bath, raise the temperature to 50-100°C, and keep it warm for 30-120 minutes. Use hydrochloric acid to adjust the pH value to 2~6, then add 1~10ml of silane coupling agent dropwise, and stir vigorously for 20~...

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PUM

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Abstract

The present invention relates to a high-molecular fiber composite material covered with nano inorganic powder body and its preparation method. It is made up by using at least one chemical fiber selected from poly-p-phenylene benzodioxazole fiber, aramid fiber and ultrahigh-molecular polyethylene fiber as matrix, using at least one nano inorganic powder body selected from nano titanium dioxide, nano silicone oxide, nano magnesium oxide, nano zinc oxide, nano aluminum oxide, nano zirconium oxide, nano nickel oxide and nano cobalt oxide as intermediate covering body and adopting impregnation coating process.

Description

technical field [0001] The invention belongs to the technical field of advanced composite materials, in particular to a nano-inorganic powder-coated polymer fiber and a preparation method thereof. Background technique [0002] Chemical fibers such as poly-p-phenylenebenzobisoxazole (PBO) fibers, aramid fibers, and ultra-high molecular weight polyethylene fibers have a series of excellent properties such as high specific strength, specific modulus, and high temperature resistance, and are widely used in national economy and national defense. It is widely used in various fields of military industry [Wu Guomei. PBO polymer fiber material with ultra-high performance in the 21st century. High-tech fibers and applications, 2002, 27(3): 15-18]. However, the above-mentioned chemical fibers have a smooth surface and low activity, which is not suitable for direct use as a reinforcing phase to prepare high-performance composite materials. In addition, the above-mentioned chemical fibe...

Claims

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Application Information

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IPC IPC(8): D06M11/32D06M23/10D06M101/36D06M101/20D06M101/30
Inventor 刘雪峰谢建新隋守军
Owner UNIV OF SCI & TECH BEIJING
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