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A kind of synthesis of flame retardant microcapsule and preparation method of flame retardant fabric

A synthesis method and microcapsule technology, which is applied in the direction of microcapsule preparation, microsphere preparation, flame-retardant fiber, etc., can solve the problems of microcapsule preparation difficulty and industrialization difficulty, and achieve low preparation cost, convenient use, and washable performance Good results

Active Publication Date: 2021-05-28
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The use of microcapsule technology to finish textiles can improve the comfort and functionality of textiles, but there are certain difficulties in the preparation of microcapsules, and industrialization is relatively difficult.

Method used

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  • A kind of synthesis of flame retardant microcapsule and preparation method of flame retardant fabric
  • A kind of synthesis of flame retardant microcapsule and preparation method of flame retardant fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Sample type: pure cotton fabric

[0040] (1) Soak the cotton fabric in deionized water for 30 minutes, and set it aside, at this time, the surface of the cotton fabric is negatively charged.

[0041] (2) Prepare the microcapsules whose outermost layer is a chitosan solution and whose surface is positively charged. The properties of the treated fabric are shown in Table 1.

[0042] Concrete steps: prepare 3-aminopropyltriethoxysilane APTES suspension with a concentration of 5g / L, add acidic chitosan solution with a concentration of 5g / L, 3-aminopropyltriethoxysilane APTES suspension The mass ratio of turbid liquid and acidic chitosan is 1:25, mixed reaction, centrifugation, centrifugation speed is 12000rpm, centrifugation time is 10min, the precipitation after centrifugation is dissolved in the deionized water that is 1:30 with the mass ratio of precipitation, 50 crushing treatments were performed in an ultrasonic cell pulverizer (parameters for each treatment: ultraso...

Embodiment 2

[0045] Sample species: polyester-cotton blended fabric (blend ratio: 80 / 20)

[0046] (1) Soak the polyester fabric in 1M NaOH solution, and keep it at 70°C for 30 minutes to partially hydrolyze the surface of the polyester fiber so that it is easier to absorb the electrolyte.

[0047] (2) Prepare microcapsules whose outermost layer is sodium alginate and whose surface is negatively charged.

[0048] Specific steps: APTES suspension with a concentration of 10g / L is prepared, acid chitosan solution with a concentration of 3g / L is added, mixed reaction, 3-aminopropyltriethoxysilane APTES suspension and acid chitosan The mass ratio is 1:30, centrifuged, the centrifugal speed is 10000rpm, and the centrifugation time is 15min. The precipitate after centrifugation is dissolved in deionized water with a mass ratio of 1:40 to the precipitate, and crushed in an ultrasonic cell pulverizer for 45 times , (parameters for each treatment: ultrasonic treatment 8s, intermittent 5s, power 600W...

Embodiment 3

[0051] The core flame retardant in Example 1 was replaced by polydimethylsiloxane, the wall materials were chitosan and sodium lignosulfonate, and other parameters remained unchanged.

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Abstract

The invention discloses a method for synthesizing flame-retardant microcapsules and a flame-retardant fabric, belonging to the field of functional textiles. The synthesis method of flame retardant microcapsules in the present invention is as follows: configure flame retardant suspension → add bioelectrolyte → centrifuge → dissolve precipitate and pulverize → add bioelectrolyte solution with opposite charge → centrifuge → solvent precipitate and pulverize → add bioelectrolyte Solution, repeat the above process in turn until the microcapsule finishing agent with a certain size is obtained. The preparation process of the present invention is simple, easy to operate, does not require special and complicated equipment, and the preparation cost is low, and the microcapsules are prepared by layer-by-layer self-assembly technology, which can accurately control the size, shape and structure of the capsule wall of the microcapsules. It can be used in the field of preparing home textile fabrics, fire-fighting clothing and decorative textiles.

Description

technical field [0001] The invention relates to a method for synthesizing flame-retardant microcapsules and a flame-retardant fabric, and belongs to the technical field of functional textiles. Background technique [0002] With the rapid increase in the use of textiles, fire accidents caused by textiles are also increasing. Especially in building and residential fires, the proportion of textile fire spread is even greater. Human beings are in direct contact with textiles. Once burned, some skins will be burned and suffer pain. In severe cases, a large area of ​​skin will be scorched and burned, which is life-threatening. In addition, the toxic and harmful gases produced by the burning of textiles will also endanger human life, such as carbon dioxide, carbon monoxide, ammonia and aldehydes, hydrogen cyanide, nitrogen oxide gas, etc., which will cause people to suffocate or poison and die. Therefore, reducing fire accidents caused by textile combustion, researching textile f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J13/02D06M23/12D06M13/513D06M15/643D06M15/03D06M15/01D06M101/06D06M101/32
CPCB01J13/02D06M13/513D06M15/01D06M15/03D06M15/643D06M23/12D06M2101/06D06M2101/32D06M2200/30
Inventor 王鸿博杨雪苏静傅佳佳
Owner JIANGNAN UNIV
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