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

A kind of rare earth-containing hydrotalcite flame-retardant paper and its preparation method and application

A technology of hydrotalcite and flame retardant paper, applied in the field of material science, can solve the problems of no literature report on the application of flame retardant paper, complicated process, increased production cost, etc., and achieve a remarkable flame retardant effect, simple process and low cost. Effect

Active Publication Date: 2015-12-09
HUNAN UNIV OF TECH
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This makes the process more complicated and increases the production cost
In addition, most of the research reports are on the application of LDHs containing rare earth elements in flame-retardant polymer materials, but there are no literature reports on the application of flame-retardant paper.

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Take 0.9molMgCl 2 ·6H 2 O, 0.3molAlCl 3 ·6H 2 O, 0.3mol ZnCl 2 , 0.1molFeCl 3 ·6H 2 O was dissolved in deionized water to form solution A; 2.56molNaOH, 0.8molNa 2 CO 3Dubbed solution B. Add solution A and solution B into a self-made reactor at room temperature, and adjust the pH value of the reaction solution to keep it at 9-10. After the reaction solution was dropped, the obtained reaction solution was stirred in the reactor for a period of time and then transferred into a three-neck flask, crystallized at 90°C for 6h, then centrifuged, washed with deionized water to obtain a quaternary MgAlZnFe-LDHs filter cake, Then a LDHs colloidal solution with a concentration of 4% (mass fraction) was prepared with deionized water.

[0021] Take a certain amount of dry pulp and dissolve it in a fiber standard disintegrator to form a 2% suspension, and use the method of adding in the pulp to mix the MgAlZnFe-LDHs colloid solution synthesized above with the pulp evenly, and...

Embodiment 2

[0023] Take 0.9molMgCl 2 ·6H 2 O, 0.3molAlCl 3 ·6H 2 O, 0.36mol ZnCl 2 , 0.04molLaCl 3 ·6H 2 O was dissolved in deionized water to form solution A; 2.56molNaOH, 0.8molNa 2 CO 3 Dubbed solution B. Add solution A and solution B into a self-made reactor at room temperature, and adjust the pH value of the reaction solution to keep it at 9-10. After the reaction solution was dropped, the obtained reaction solution was stirred in the reactor for a period of time and then transferred into a three-neck flask, crystallized at 90°C for 6h, then centrifuged, washed with deionized water to obtain a quaternary MgAlZnLa-LDHs filter cake, Then a LDHs colloidal solution with a concentration of 4% (mass fraction) was prepared with deionized water.

[0024] Take a certain amount of dry pulp and disintegrate it into a 2% suspension in a fiber standard disintegrator, and mix the above-synthesized MgAlZnLa-LDHs colloid solution with the pulp evenly by using the method of adding in the pul...

Embodiment 3

[0026] Take 0.9molMgCl 2 ·6H 2 O, 0.3molAlCl 3 ·6H 2 O, 0.38mol ZnCl 2 , 0.02molCeCl 3 ·6H 2 O was dissolved in deionized water to form solution A; 2.56molNaOH, 0.8molNa 2 CO 3 Dubbed solution B. Add solution A and solution B into a self-made reactor at room temperature, and adjust the pH value of the reaction solution to keep it at 9-10. After the reaction solution was dropped, the obtained reaction solution was stirred in the reactor for a period of time and then transferred into a three-neck flask, crystallized at 90°C for 6h, then centrifuged, washed with deionized water to obtain a quaternary MgAlZnCe-LDHs filter cake, Then a LDHs colloidal solution with a concentration of 4% (mass fraction) was prepared with deionized water.

[0027] Take a certain amount of dry pulp and disintegrate it into a 2% suspension in a fiber standard disintegrator, and mix the above-synthesized MgAlZnCe-LDHs colloid solution with the pulp evenly by using the method of adding in the pul...

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

No PUM Login to View More

Abstract

The invention discloses flame retardant paper containing rare earth-containing hydrotalcite, and a preparation method and an application thereof. The preparation method of the flame retardant paper containing the rare earth-containing hydrotalcite comprises the steps: firstly, synthesizing binary, ternary, quaternary, pentabasic or hexabasic hydrotalcite containing lanthanum, cerium, samarium, terbium, europium and other rare earth elements, then directly adding 5 to 300 parts of the rare earth-containing hydrotalcite into 100 parts of paper fibers by an intra-pulp addition method, a dipping method or a coating method, or modifying 100 parts of the paper fibers with 5 to 300 parts of the rare earth-containing hydrotalcite by a self-assembly method, and finally papermaking in a paper former to obtain the flame retardant paper. The flame retardant paper containing the rare earth-containing hydrotalcite utilizes the synergistic flame retardant function of the rare earth elements, so the flame retardant effect is substantially improved, and the mechanical properties are excellent. The flame retardant paper containing the rare earth-containing hydrotalcite has the characteristics of environmental protection, high efficiency and no pollution; the preparation method of the flame retardant paper is simple and diverse, and is suitable for industrial production. The flame retardant paper containing the rare earth-containing hydrotalcite can be widely applied to packaging, building and living paper and other fields.

Description

technical field [0001] The invention relates to the field of material science, in particular to a fire-retardant paper containing rare earth hydrotalcite and its preparation method and application. Background technique [0002] Paper materials made of plant fibers are widely used in packaging due to their wide source of raw materials, good printing performance, convenient composite processing, convenient industrial production, convenient transportation, low cost, light weight, waste recycling and degradability, etc. , construction, decoration and other fields. However, paper materials are easy to burn, and the burning speed is extremely fast. They will turn into ashes as soon as they come into contact with fire, and they are usually the ignition material of the fire, or promote the rapid development of the fire. Many fires are caused by paper materials. caused by burning. The fire hazard caused by paper materials has become a social issue of global concern, and people are ...

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): D21H17/69D21H21/14
Inventor 谭井华胡敏刘亦武
Owner HUNAN UNIV OF TECH