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Flame resisting heat insulating conditioning method for orgainic fiber fabric

A technology of organic fiber fabrics and fabrics, which is applied in the directions of fiber processing, textiles and papermaking, can solve the problems affecting the fire resistance and thermal insulation properties of polymers, and achieve the effect of low cost and simple process.

Inactive Publication Date: 2007-03-21
DONGHUA UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] Ultrafine powder cannot form a continuous protective film on the surface of the polymer, which affects the fire resistance and heat insulation properties of the polymer
[0013] As an additive material, only suitable for synthetic or recycled organic materials

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Flame resisting heat insulating conditioning method for orgainic fiber fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] 1. Preparation of magnesium hydroxide seed crystals: First, add 100ml of double-distilled water into the four-necked bottle, pass ammonia water to adjust the pH value of the system to 11, and then add ammonia water and Magnesium chloride dilute solution, the concentrations of ammonia water and magnesium chloride are: 0.2mol / L and 0.1mol / L respectively, the feeding time is 2 hours, and the constant temperature reaction is continued for 2 hours. The reaction temperature of the whole process is 40°C, and the seed crystals with a particle size of about 20nm are obtained. .

[0040] 2. Planting of magnesium hydroxide crystal seeds on cotton fabric: put 0.5g of cotton fabric into 100ml of the above-mentioned magnesium hydroxide seed crystal solution, and add ammonia water / ammonium chloride buffer solution at the same time to keep the pH value of the system at 11. The whole reaction was carried out in a constant temperature water bath at a temperature of 40°C. After 30 minute...

Embodiment 2

[0043]1. Preparation of magnesium hydroxide seed crystals: First, add 100ml of double-distilled water into the four-neck bottle, adjust the pH of the system to 11 with ammonia water, and then add ammonia water and magnesium chloride to the system at the same time at a speed of 40ml / h with a constant flow pump Dilute solution, the concentrations of ammonia water and magnesium chloride are: 0.2mol / L and 0.1mol / L respectively, the feeding time is 2 hours, and the constant temperature reaction is continued for 2 hours. The reaction temperature of the whole process is 40°C, and the seed crystals with a particle size of about 20nm are obtained.

[0044] 2. Citric acid modification of cotton fabric:

[0045] Modification liquid composition: citric acid 100g / L, sodium hypophosphite 60g / L

[0046] Modification process: Cotton fabric is dipped twice and rolled twice with the modified liquid, the excess rate is 90%-100%, pre-baked at 80°C for 5 minutes, baked at 180°C for 2 minutes, then...

Embodiment 3

[0050] 1. Preparation of aluminum hydroxide seed crystals: First, add 200ml of double-distilled water into the four-neck bottle, adjust the pH of the system to 10 with ammonia water, and then add ammonia water and chlorine to the system at a speed of 10ml / h at the same time with a constant flow pump Dilute aluminum solution, the concentrations of ammonia water and aluminum chloride are: 0.3mol / L and 0.1mol / L respectively, the feeding time is 2 hours, and the constant temperature reaction is continued for 1 hour. The reaction temperature of the whole process is 25°C, and the particle size is about 10nm. of seed crystals.

[0051] 2. Citric acid modification of cotton fabric:

[0052] Modification liquid composition: maleic acid 100g / L, sodium hypophosphite 60g / L

[0053] Modification process: Cotton fabric is dipped twice and rolled twice with the modified liquid, the excess rate is 90%-100%, pre-baked at 80°C for 5 minutes, baked at 180°C for 2 minutes, then washed with water...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The present invention discloses a finishing method for raising heat-insulating and flame-proofing performance of organic fibre fabrics. Said method is characterized by forming a continuous protective film made of sheet hydroxide on the surface of organic fibre or fabrics so as to raise flame-proofing and heat-insulating performance of organic fibre fabrics.

Description

technical field [0001] The invention belongs to the field of functional finishing of organic fiber fabrics, and in particular relates to a finishing method for fire-resistant and heat-insulating organic fiber fabrics. Background technique [0002] Fire-resistant and heat-insulating organic fiber fabrics are widely used in aerospace, high-temperature filtration, and protective clothing. The fire-resistant and heat-insulating properties of organic fiber fabrics are mainly obtained through three methods: ① post-treatment of fire-resistant and heat-insulating organic fiber fabrics, which is relatively low in cost; ② direct production of fire-resistant and heat-insulating fibers is expensive; ③In the production of additive refractory fibers, the additives will have a negative impact on the processing technology, physical and mechanical properties of the fibers, etc. [0003] Traditionally, the fire-resistant and heat-insulating post-treatment method of organic fiber fabrics is u...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M11/36D06M23/00
Inventor 毛志平李秀红黄德慧王明勇
Owner DONGHUA UNIV
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