Unlock instant, AI-driven research and patent intelligence for your innovation.

A three-component layer-by-layer self-assembled flame-retardant modified ramie fabric and its preparation method

A layer-by-layer self-assembly and three-component technology, which is applied in the direction of flame-retardant fibers, plant fibers, textiles, and papermaking, can solve the problems of easy combustion and poor thermal stability of ramie fibers, and achieve difficult detachment and excellent flame retardancy And self-extinguishing, high adhesion performance effect

Active Publication Date: 2017-11-28
NINGBO INST OF TECH ZHEJIANG UNIV ZHEJIANG
View PDF4 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, how to combine the above three components with ramie fibers to solve the problem of poor thermal stability and easy combustion of ramie fibers, and to obtain ramie products with good flame retardancy has become a technical problem to be solved urgently in this field

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A three-component layer-by-layer self-assembled flame-retardant modified ramie fabric and its preparation method
  • A three-component layer-by-layer self-assembled flame-retardant modified ramie fabric and its preparation method
  • A three-component layer-by-layer self-assembled flame-retardant modified ramie fabric and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] The ramie fabric was cleaned with a cleaning agent in deionized water, and dried in a blast dryer at 60°C for 15 minutes after taking it out. Soak the cleaned ramie fabric in the PEI solution with a concentration of 0.9wt% and the ZrP solution with a concentration of 0.2wt% in turn, soak in the PEI solution for 5 minutes, soak in the ZrP solution for 10 minutes, and dry. This is a flame retardant finish. Double layer ramie fabric. Repeat this process until 5 double-layer flame-retardant coatings are assembled on the surface of the ramie fabric, and its preparation process is as follows: figure 1 shown. The subsequent four soaking times of PEI were 2 min, and ZrP was 5 min. The gained ramie fabric ((PEI / ZrP) 5 ) for drying. The content of flame retardant coating was calculated as 0.9% by weighing the mass of ramie fabric before and after treatment. (PEI / ZrP) 5 The contents of P, N and Zr on the surface of ramie fabric were 1.4%, 3.7% and 1.0%, respectively. The an...

Embodiment 2

[0045] The ramie fabric was cleaned with a cleaning agent in deionized water, and dried in a blast dryer at 60°C for 15 minutes after taking it out. Soak the cleaned ramie fabric in the PEI solution with a concentration of 0.9wt% and the ZrP solution with a concentration of 0.2wt% in turn, soak in the PEI solution for 5 minutes, soak in the ZrP solution for 10 minutes, and dry. This is a flame retardant finish. Double layer ramie fabric. Repeat this process until 10 double-layer flame-retardant coatings are assembled on the ramie fabric surface, and its preparation process is as follows: figure 1 shown. The subsequent nine immersion times of PEI were 2 min, and ZrP was 5 min. The gained ramie fabric ((PEI / ZrP) 10 ) for drying. The content of flame retardant coating was calculated as 2.0% by weighing the mass of ramie fabric before and after treatment. (PEI / ZrP) 10 The contents of P, N and Zr on the surface of ramie fabrics were 1.7%, 3.5% and 0.9%, respectively. The ana...

Embodiment 3

[0047] The ramie fabric was cleaned with a cleaning agent in deionized water, and dried in a blast dryer at 60°C for 15 minutes after taking it out. Soak the cleaned ramie fabric in the PEI solution with a concentration of 0.9wt% and the ZrP solution with a concentration of 0.2wt% in turn, soak in the PEI solution for 5 minutes, soak in the ZrP solution for 10 minutes, and dry. This is a flame retardant finish. Double layer ramie fabric. This process was repeated until five double-layered PEI / ZrP barrier coatings were assembled on the surface of the ramie fabric. The subsequent four soaking times of PEI were 2 min, and ZrP was 5 min. Afterwards, the ramie fabric with 5 double-layer PEI / ZrP barrier coatings was immersed in the PEI solution with a concentration of 0.9wt% and the APP solution with a concentration of 0.9wt% in sequence, soaked for 5 minutes each time, and dried. This process was repeated until five double-layered PEI / APP intumescent flame-retardant coatings were...

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
Login to View More

PUM

PropertyMeasurementUnit
limiting oxygen indexaaaaaaaaaa
limiting oxygen indexaaaaaaaaaa
limiting oxygen indexaaaaaaaaaa
Login to View More

Abstract

The invention provides a three-component layer-by-layer self-assembly flame-retardant modified ramie fabric and a preparation method thereof.The method includes the steps that the ramie fabric is cleaned in deionized water through a cleaning agent, taken out and dried; the cleaned and dried ramie fabric is sequentially soaked in a polymine solution and a zirconium phosphate, soaking is conducted for 2-10 min each time, and a double-layer ramie fabric is formed in a flame-retardant arrangement mode; the process is repeated till 5-10 two-layer flame-retardant coatings are assembled on the surface of the ramie fabric; then, the ramie fabric where 5-10 two-layer PEI / ZrP isolation coatings are built is sequentially soaked in a PEI solution with the concentration being 0.9 wt% and an ammonium polyphosphate solution with the concentration being 0.9 wt%, and soaking is conducted for 2-5 min each time; the process is repeated till another 0-5 double-layer PEI / APP expansion flame-retardant coatings are arranged on the surface of the ramie fabric.The technology is easy to operate, flexible, good in stability and capable of effectively improving flame retardance of the ramie fabric.

Description

technical field [0001] The invention relates to the technical field of flame-retardant finishing of ramie fiber and its fabric, in particular to a three-component (PEI / ZrP / APP) layer-by-layer self-assembled flame-retardant modified ramie fabric and a preparation method thereof. Background technique [0002] As the most potential natural fiber reinforcement, ramie fiber has the advantages of wide source, low cost, low density, excellent mechanical properties, environmental protection, biodegradability, etc. Application expansion puts forward higher requirements for its performance, especially thermal stability and flame retardancy. [0003] Layer-by-layer assembly (layer-by-layer (LBL) assembly) is a new material surface modification method with simple operation, easy implementation and good controllability. This method is based on the physical adsorption of oppositely charged polyelectrolytes, and it is a technology that alternately deposits a multilayer film on a solid sur...

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
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): D06M15/61D06M11/72D06M11/71D06M101/06
CPCD06M11/71D06M11/72D06M15/61D06M2101/06D06M2200/30
Inventor 闫红强程捷方征平赵黎
Owner NINGBO INST OF TECH ZHEJIANG UNIV ZHEJIANG