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A washing-resistant flame retardant synergist for textiles and its preparation method and application

A flame-retardant synergist and washing-resistant technology, which is applied in textiles and papermaking, flame-retardant fibers, and liquid-repellent fibers, etc. To solve the problem of degradation, achieve excellent flame retardancy and water repellency, improve repeated use, and achieve the effect of durable flame retardancy

Active Publication Date: 2020-08-04
BEIJING CTA TEX CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, many water repellent agents have the disadvantage that the water repellency of textiles decreases after washing, which affects the repeated use of textiles.
Both patent 201410262266.3 and patent 201410556478.2 disclose a washing-resistant flame-retardant finishing agent. Although these finishing agents can maintain the flame-retardant performance of the washed fabric, the flame-retardant performance is still partially reduced compared with that before washing, and it will also affect the fabric. water repellency

Method used

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  • A washing-resistant flame retardant synergist for textiles and its preparation method and application
  • A washing-resistant flame retardant synergist for textiles and its preparation method and application
  • A washing-resistant flame retardant synergist for textiles and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Polyurethane emulsion formulation:

[0052]

[0053]Textile washing resistance flame retardant synergist formula:

[0054]

[0055] 1. Preparation

[0056] (1) Under the protection of inert gas nitrogen, react 30mol toluene diisocyanate with 10mol trimethylolpropane at 60°C for 1.5h to prepare -NCO group-terminated prepolymer I, and then add 2mol of N-methyl diisocyanate Ethanolamine and 1 mol of polyethylene glycol monomethyl ether 500 were reacted at 60°C for 2 hours to prepare prepolymer II (reacted to the set -NCO group content);

[0057] (2) The prepolymer II and 13mol of tribromoethanol were subjected to a capping reaction at 60°C for 2 hours to obtain the prepolymer III (reacted to the set -NCO group content), and then the prepolymer III was mixed with 12mol of methyl ethyl ketone The oxime was subjected to capping reaction at 60°C for 4h (reaction until the -NCO group content was set to zero), cooled to below 40°C and added 3mol acetic acid for neutraliz...

Embodiment 2

[0066] Polyurethane emulsion formulation:

[0067]

[0068] Textile washing resistance flame retardant synergist formula

[0069]

[0070] 1. Preparation

[0071] (1) Under the protection of inert gas nitrogen, react 30mol isophorone diisocyanate with 10mol trimethylolpropane at 60°C for 1.5h to prepare -NCO group-terminated prepolymer I, and then add 2mol of N- Methyldiethanolamine and 1mol of polyethylene glycol monomethyl ether 500 were reacted at 60°C for 2 hours to prepare prepolymer II (reacted to the set -NCO group content);

[0072] (2) The prepolymer II and 13mol of tribromoethanol were subjected to a capping reaction at 60°C for 2 hours to obtain the prepolymer III (reacted to the set -NCO group content), and then the prepolymer III was mixed with 12mol of methyl ethyl ketone The oxime was subjected to capping reaction at 60°C for 4h (reaction until the -NCO group content was set to zero), cooled to below 40°C and added 3mol acetic acid for neutralization rea...

Embodiment 3

[0081] Polyurethane emulsion formulation:

[0082]

[0083] Textile washing resistance flame retardant synergist formula:

[0084]

[0085] 1. Preparation

[0086] (1) Under the protection of inert gas nitrogen, react 30mol toluene diisocyanate with 10mol trimethylolpropane at 60°C for 1.5h to prepare -NCO group-terminated prepolymer I, and then add 2mol of N-methyl diisocyanate Ethanolamine and 1 mol of polyethylene glycol monomethyl ether 500 were reacted at 60°C for 2 hours to prepare prepolymer II (reacted to the set -NCO group content);

[0087] (2) Prepolymer II and 13mol of trichloroethanol were capped at 60°C for 2 hours to obtain prepolymer III (reacted to the set -NCO group content), and then prepolymer III was mixed with 12mol of methyl ethyl ketone The oxime was subjected to capping reaction at 60°C for 4h (reaction until the -NCO group content was set to zero), cooled to below 40°C and added 3mol acetic acid for neutralization reaction for 0.5h, and finall...

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Abstract

The invention discloses a laundering-resisting and flame-retarding synergist for textiles as well as a preparation method and application thereof. The flame-retarding synergist is prepared from the following substances in parts by mass: 40 to 60 parts of a polyurethane flame retardant, 3 to 10 parts of an emulsifier, 5 to 15 parts of an organic acid ester type flame retardant, 4 to 8 parts of ammonium dihydrogen phosphate and 80 parts of de-ionized water, wherein a structural general formula of the polyurethane flame retardant is shown as formula I, and a, b and c are arbitrary integers from 1to 4; R1 is a residue of diisocyanate; R2 is a residue of halogen-containing alcohol; R3 is a residue of polyol; R4 is a residue of methoxypolyethylene glycols; and R5 is a residue of an end cappingagent. The laundering-resisting and flame-retarding synergist for the textiles, provided by the invention, is mainly applied to functional finishing of the textiles and can be used for synergizing thelaundering resistance and the flame-retarding performance of a textile finishing agent; and the laundering-resisting and flame-retarding synergist has the advantages of cheap and easy-to-obtain raw materials, simple preparation technology and safety and environment protection. The formula I is shown in the description.

Description

technical field [0001] The invention belongs to the technical field of textile chemicals, and in particular relates to a washing-resistant flame retardant synergist for textiles, a preparation method and application thereof. Background technique [0002] Textiles involved in daily life need finishing to realize their functionality, especially the water-repellent finishing of textiles. At present, many water repellents have the disadvantage that the water repellency of textiles decreases after washing, which affects the repeated use of textiles. Both patent 201410262266.3 and patent 201410556478.2 disclose a washing-resistant flame-retardant finishing agent. Although these finishing agents can maintain the flame-retardant performance of the washed fabric, the flame-retardant performance is still partially reduced compared with that before washing, and it will also affect the fabric. water repellency. Therefore, it is of great practical significance to develop a flame retard...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G18/66C08G18/48C08G18/32C08G18/10C08G18/30D06M15/568D06M13/51D06M11/71D06M101/32D06M101/06D06M101/34
CPCC08G18/10C08G18/3206D06M11/71D06M13/51D06M15/568D06M2101/06D06M2101/32D06M2101/34D06M2200/12D06M2200/30C08G18/2835C08G18/3275C08G18/2885C08G18/286
Inventor 程博陈松邓燕高殿权
Owner BEIJING CTA TEX CHEM
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