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Real silk flame retardant and method for preparing flame-retardant real silk

A technology of flame retardant and silk, applied in the field of durable flame retardant finishing, to achieve the effect of convenient operation and long-lasting good flame retardant effect

Active Publication Date: 2012-12-19
苏州盛泽科技创业园发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The flame retardant disclosed in this application is a simple phosphorus flame retardant, which has problems in flame retardant efficiency, processability and cost

Method used

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  • Real silk flame retardant and method for preparing flame-retardant real silk

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Example 1: Preparation of flame retardant.

[0040] The structural formula of the flame retardant prepared in this embodiment is:

[0041]

[0042] where R is CH 3 , n is 1, and the name is methacryloyloxyethyl dimethoxyphosphoramide.

[0043] It is prepared by the following method:

[0044] The first step: preparation of dimethyl chlorophosphate

[0045] After mixing 6.4g (0.1mol) of anhydrous methanol with 20.2g (0.2mol) of anhydrous triethylamine, slowly drop into a constant pressure dropping funnel containing 15.33g (0.1mol) of phosphorus oxychloride and In a four-neck flask containing 100g of anhydrous diethyl ether mixed solution, stir and pass nitrogen gas, control the dropping speed to 3-5s / drop, and the reaction temperature to 0-5°C. After the dropwise addition, keep the temperature at 0-5°C Continue to react for 5-6 hours. After the reaction, it was suction filtered to remove salt, and then rotary evaporated to obtain a colorless liquid.

[0046] The ...

Embodiment 2

[0055] Embodiment two: real silk fabric (real silk power spinning, 36g / m 2 ) flame retardant finishing and performance testing

[0056] Carry out three groups of comparative tests, add the flame retardant prepared in Example 1 equivalent to 50%, 80%, and 100% of the weight of the real silk fabric into the beaker, then add water 30 times the weight of the real silk fabric, add 3% (mass percentage of the flame retardant) of potassium persulfate, adjust the pH of the flame retardant aqueous solution to 3.5 with ammonia water, put it into the silk fabric for immersion, raise the temperature to 90°C, keep it warm for 1 hour, then take it out, wash it with cold running water, and use it again Wash at 50°C for 10 minutes, then wash with cold running water, and then dry at 70°C.

[0057] After flame-retardant finishing, the oxygen index of the fabric was tested according to GB5454-85, and the carbon length of the fabric was tested according to GB5456-85. The results are shown in Tabl...

Embodiment 3

[0062] Example 3: Flame-retardant finishing and performance testing of real silk fiber (20 / 21D degummed silk, degumming rate 23%)

[0063] Add 50% (to the mass percentage of real silk fiber) of the flame retardant obtained in Example 1 into the beaker, then add 20 (to the mass percentage of real silk fiber) deionized water, and then add 2.5% (to the mass percentage of the real silk fiber) of the flame retardant mass percent) of ammonium persulfate, adjust the pH of the flame retardant aqueous solution to 3.5 with ammonia water, immerse it in silk fabrics, raise the temperature to 90°C, keep it warm for 1 hour, then take it out, wash it with cold running water, and then wash it with 50°C water for 10 minutes , and then washed in cold running water, then dried at 70. It is measured that the weight gain rate of the treated real silk fiber is 9%.

[0064] Since silk fibers do not have corresponding standards for testing oxygen index and carbon length, the flame retardant performa...

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Abstract

The invention discloses a real silk flame retardant and a method for preparing a flame-retardant real silk. The structural formula of the real silk flame retardant is shown as the accompanying drawing, wherein, R is H or CH3, and n is 1 or 2. The flame retardant which is 50%-100% of the weight of a real silk fabric is added into water which is 20-30 times of the fabric, a persulphate initiator which is 1.5%-3.5% of the flame retardant is added, the pH value is regulated between 3-4, so the flame retardant solution is obtained; the real silk fabric is soaked in the flame retardant solution, is heated to 85 DEG C-90 DEGC, and is thermally insulated for 40-60 min; and after washing and drying, the flame-retardant real silk is obtained. The flame retardant provided by the invention has durability, and no formaldehyde is released during the flame-retardant finishing, so the environmental protection requirement is satisfied.

Description

technical field [0001] The invention belongs to the technical field of textile finishing, and in particular relates to a method for durable flame-retardant finishing of textiles, especially silk. Background technique [0002] Fires caused by textiles account for approximately 20 percent of residential fires, but account for 50 percent of all fire deaths. All countries have legislated to put forward corresponding flame retardant performance requirements for textiles used in different fields. [0003] Silk fiber, known as the "Fiber Queen", is widely used in clothing and decorative materials due to its health care, comfort, noble and gorgeous appearance. The main products are pajamas, ties, silk scarves, bedding, wall coverings, decorative paintings, carpets and so on. my country is a big silk-producing country. The output of raw silk and gray silk accounts for more than 70% and 45% of the world's total output respectively, ranking first in the world. The output of printed a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M13/453C07F9/24D06M101/10
Inventor 陈国强关晋平杨玉梅
Owner 苏州盛泽科技创业园发展有限公司
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