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Environment-friendly bio-based fiber flame retardant as well as preparation method and application thereof

A bio-based, flame retardant technology, applied in the field of fiber manufacturing, can solve the problems of non-compliance with the general trend of cleaner production, endangering environmental safety, etc., achieving excellent fire safety performance, reducing damage area, and wide application.

Pending Publication Date: 2022-05-10
QINGDAO UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The post-flame retardant finishing of fiber materials usually relies on the addition of flame retardants to achieve the flame retardant function of fiber materials. However, these flame retardants often use organic solvents (such as formaldehyde, acetone, DMF, etc.) during the manufacturing and use stages, such as ZL2019106303509 invention patent Application, the use of organic solvents such as dimethyl sulfoxide and N,N-dimethylformamide seriously endangers the environment and safety, and does not conform to the general trend of cleaner production today

Method used

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  • Environment-friendly bio-based fiber flame retardant as well as preparation method and application thereof
  • Environment-friendly bio-based fiber flame retardant as well as preparation method and application thereof
  • Environment-friendly bio-based fiber flame retardant as well as preparation method and application thereof

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preparation example Construction

[0030] The invention provides a method for preparing an environment-friendly bio-based fiber flame retardant, comprising the following steps:

[0031] (1) ball milling after mixing lignocellulose, phosphorus and nitrogen source and water to obtain crude product;

[0032] (2) centrifuging the crude product obtained in step (1) to obtain an environment-friendly bio-based fiber flame retardant.

[0033] In the present invention, the mass ratio of the lignocellulose to the phosphorus and nitrogen source is preferably 1:1-2, more preferably 1:1.1-1.6.

[0034] In the present invention, the phosphorus nitrogen source is preferably ammonium polyphosphate, water-soluble ammonium polyphosphate, melamine phosphate, ammonium pyrophosphate, ammonium tripolyphosphate, ammonium tetrapolyphosphate, ammonium dihydrogen phosphate, melamine pyrophosphate One or more, more preferably one or more of ammonium polyphosphate, water-soluble ammonium polyphosphate, melamine phosphate, ammonium pyroph...

Embodiment 1

[0045] Add 31.25g of lignocellulose and 62.5g of ammonium polyphosphate into a 500ml ball milling tank, add ultrapure water of 3 / 5 volume of the ball milling tank; set the ball milling time to 10h, and the ball milling speed to 400rpm; after the ball milling is completed, the ball milling tank Let stand to room temperature, separate ball milling beads and materials;

[0046] Centrifuge the preliminary product of the ball mill, centrifuge at 1500rpm for 10min, and centrifuge at 5000rpm for 10min; after centrifugation, take the supernatant, which is an environmentally friendly bio-based fiber flame retardant;

[0047] Dilute the volume concentration of the above-mentioned environment-friendly bio-based fiber flame retardant to 10%, take the paper fiber material and immerse it in the liquid for 120 minutes.

[0048] The soaked paper fiber material is taken out and dried to obtain a flame-retardant paper fiber material.

Embodiment 2

[0050] Add 31.25g of lignocellulose and 50g of ammonium tetrapolyphosphate into a 500ml ball milling tank, add ultrapure water with 3 / 5 volume of the ball milling tank; set the ball milling time to 5h, and the ball milling speed to 300rpm; after the ball milling is completed, the ball milling tank Let stand to room temperature, separate ball milling beads and materials;

[0051] Centrifuge the preliminary product of the ball mill, centrifuge at 1700rpm for 8min, and centrifuge at 5000rpm for 10min; after centrifugation, take the supernatant, which is an environmentally friendly bio-based fiber flame retardant;

[0052] Dilute the volume concentration of the above-mentioned environment-friendly bio-based fiber flame retardant to 15%, and take the paper fiber material and immerse it in the liquid for 30 minutes.

[0053] The soaked paper fiber material is taken out and dried to obtain a flame-retardant paper fiber material.

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Abstract

The invention relates to the technical field of fiber manufacturing, in particular to an environment-friendly bio-based fiber flame retardant as well as a preparation method and application thereof. Lignocellulose, a phosphorus-nitrogen source and water are mixed and synthesized through a mechanochemical method, the environment-friendly bio-based fiber flame retardant is prepared after centrifugation, and the fiber material with the flame retardant function can be obtained by applying the environment-friendly bio-based fiber flame retardant to post-flame-retardant finishing of the fiber material. The raw material source is wide, the price is low, the process is controllable, and the environmental safety problem caused by the use of an organic solvent in traditional flame retardant manufacturing and fiber material post-flame-retardant finishing is solved. The fiber material with the flame-retardant function prepared by the preparation method disclosed by the invention has excellent flame retardance, self-extinguishing property and environmental protection property.

Description

technical field [0001] The invention relates to the technical field of fiber manufacturing, in particular to an environment-friendly bio-based fiber flame retardant and its preparation method and application. Background technique [0002] Fibrous material is a material formed from fibrous substances through weaving and other processes. Due to its special structure, it has better physical and chemical properties than traditional solid materials, and has been widely used in many fields. In particular, natural fibers represented by cotton fibers, wood fibers, and hemp fibers have played an important role in the fields of textile and papermaking. However, fiber materials such as fabrics and papers are extremely flammable, and there are also defects such as fast flame spread and difficult fire control, which limits its application range. Therefore, flame retardant treatment of fiber materials is of great significance to public safety. [0003] The flame retardant treatment of f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/01D06M11/72D06M101/04D06M101/06
CPCD06M15/01D06M11/72D06M2101/04D06M2101/06D06M2200/30
Inventor 焦传梅朴君秀陈希磊李少香
Owner QINGDAO UNIV OF SCI & TECH
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