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A method for preparing plant fiber heat-resistant flame-retardant paper by using sodium alginate
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A plant fiber and sodium alginate technology, which is applied in special paper, non-fiber pulp addition, fiber raw material treatment, etc., can solve the problems of non-degradable, high cost of temperature-resistant synthetic fibers, and low retention rate
Active Publication Date: 2021-12-31
QILU UNIV OF TECH
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Problems solved by technology
However, these methods have certain limitations
As far as the addition method is concerned, the addition of inorganic flame retardants in the pulp has a low retention rate and seriously affects the strength of the material; it is difficult to obtain a paper-based material with uniform temperature resistance and flame retardancy inside and outside by applying flame retardants on the surface
As far as the types of flame retardants are concerned, although halogen-containing organic flame retardants have good flame retardant effects, their toxicity and non-degradability cannot be ignored.
However, heat-resistant synthetic fibers are currently facing problems such as high cost, small output, and non-degradable
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
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Experimental program
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Effect test
Embodiment 1
[0035] The needle laxative fibers were dispersed to a concentration of 3%, under conditions having a stirring rate of 80 rpm, and the temperature was 30 ° C, the addition of sodium alginate was added, and the addition amount was 10% of the mass of plant fibers, stir mixed for 10 minutes. . Then the concentration of 10% calcium chloride solution was added, and the amount was added as 10% of the plant fibers, the stirring speed was 100 rpm, and the time was 20 minutes, and then the system was further dispersed, and the long-served paper machine was used in a concentration of 0.01%. Dehydration forming, crushing, drying, etc. to obtain flame retardant plant fiber paper.
Embodiment 2
[0037] The needle laxative fibers were dispersed to a concentration of 4%, under conditions having a stirring rate of 90 rpm, the temperature was 50 ° C, and the concentration of 7% sodium alginate was added, and the added amount was 20% of the mass of plant fibers, stir mixed for 30 minutes. . Then the concentration of 15% of the calcium lactate solution was added, and the amount was added as 20% of the plant fibers, the stirring speed was 130 rpm, and the time was 25 minutes, and then the system was again dispersed, and the long-served paper machine was removed at a concentration of 0.3%. Dehydration. Flame retardant plant fiber paper by pressing, pressing, drying, etc.
Embodiment 3
[0039]The needle laxative fibers were dispersed to a concentration of 6%, under conditions having a stirring speed of 100 rpm and a temperature of 60 ° C, adding a concentration of 10% alginate, an addition amount of 30% of plant fiber mass, stir mixed for 40 minutes. . Then, the concentration of 20% of the calcium lactate solution was added, and the amount was added as 30% of the plant fibers, the stirring speed was 160 rpm, and the time was 30 minutes, and then the system was further dispersed. Flame retardant plant fiber paper by pressing, pressing, drying, etc.
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
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Abstract
The invention discloses a method for preparing plant fiber heat-resistant and flame-retardant paper by using sodium alginate. Add sodium alginate to the water dispersion liquid of plant fiber and mix evenly to obtain mixed raw pulp, and then add calcium to the mixed raw pulp Salt, cross-linking and solidifying sodium alginate and calcium ions to form calcium alginate to obtain cross-linked puree, then dilute, disperse, and use wet dehydration to form, and obtain plant fiber heat-resistant flame-retardant paper after pressing and drying . The flame retardant paper prepared by the method does not contain any harmful flame retardant components, and does not reduce the strength of the paper. The paper has high strength and good toughness, and can be used as an environmentally friendly, degradable, temperature-resistant and flame-resistant material with a wide range of applications.
Description
Technical field [0001] The present invention belongs to the technical field of temperature resistant flame-retardant paper, and in particular, a method of preparing plant fiber temperature resistant resistance paper using sodium alginate. Background technique [0002] With the advancement of society and the improvement of people's living standards, environmental protection, safety, and health awareness is increasing. Plant fibers, as the world's most widely existed natural resources, have many advantages, such as renewable, degradable, environmentally friendly, non-toxic side effects, relatively low prices, their composites are increasingly favored, the field of application is also More and more, such as food baking, indoor decoration, industrial plating, automotive interior materials, etc. However, the thermal stability of plant fibers is poorly easy to combustion, and it has also brought a lot of safety hazards in many fields. [0003] At present, the commonly used method of pr...
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
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Application Information
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