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Preparation method of primary composite modified fire-retardant paper material

A technology of compound modified and flame retardant paper, applied in pulp beating method, special paper, paper and other directions, can solve the problems of reducing flame retardant efficiency, loss of flame retardant, etc., to improve structural properties, reduce negative effects, deposit and fill Excellent effect

Inactive Publication Date: 2019-01-08
何治伟
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention: Aiming at the problem that the flame retardant is seriously lost after adding the flame retardant to the existing flame retardant paper, and the flame retardant efficiency is reduced, a preparation method of the original composite modified flame retardant paper material is provided

Method used

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  • Preparation method of primary composite modified fire-retardant paper material

Examples

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Effect test

example 1

[0020] Take 10 well-grown Salicornia salsa and Suaeda salsa plants each with a seedling length of 20 cm, and transplant them into the saline solution, control the bottom of the roots to immerse to a place 10 cm away from the surface of the saline solution, and plant them at room temperature for 75 days. , take out the plants and remove the roots, wash and dry them, vacuum freeze-dry and collect the dried plants, mix the dried plants of Salicornia salsa and the dried plants of Suaeda salsa with a mass ratio of 1:1, grind and pulverize them, and pass through a 100-mesh sieve to obtain Sieve plant granules; weigh 45 parts of deionized water, 10 parts of magnesium chloride solution, 15 parts of hardwood pulp and 10 parts of sieved plant granules in a beater, beating and beating to beating degree 35°SR, collect the mixed slurry and pass ammonia gas into the slurry, control the rate of ammonia gas introduction to 25mL / min, wait for 10 minutes after passing ammonia gas, let it stand f...

example 2

[0022] Take 12 well-grown Salicornia salsa and Suaeda salsa plants with a seedling length of 22 cm, and transplant them into the saline solution, control the bottom of the roots to be immersed to a place 12 cm away from the surface of the saline solution, and plant them at room temperature for 9 days. , take out the plants and remove the roots, wash and dry them, vacuum freeze-dry and collect the dried plants, mix the dried plants of Salicornia salsa and the dried plants of Suaeda salsa with a mass ratio of 1:1, grind and pulverize them, and pass through a 100-mesh sieve to obtain Sieve plant granules; weigh 47 parts of deionized water, 12 parts of magnesium chloride solution, 17 parts of hardwood pulp and 12 parts of sieved plant granules in a beater, beating and beating to a beating degree 35°SR, collect the mixed slurry and pass ammonia gas into the slurry, control the rate of ammonia gas introduction to 27mL / min, wait for 12 minutes after passing ammonia gas, let it stand f...

example 3

[0024] Take 15 well-grown Salicornia salsa and Suaeda salsa plants with a seedling length of 25 cm, transplant them into the saline solution, control the bottom of the roots to immerse to a place 15 cm away from the surface of the saline solution, and plant them at room temperature for 15 days. , take out the plants and remove the roots, wash and dry them, vacuum freeze-dry and collect the dried plants, mix the dried plants of Salicornia salsa and the dried plants of Suaeda salsa with a mass ratio of 1:1, grind and pulverize them, and pass through a 100-mesh sieve to obtain Sieve plant granules; weigh 50 parts of deionized water, 15 parts of magnesium chloride solution, 20 parts of hardwood pulp and 15 parts of sieved plant granules in a beater, beating and beating to a beating degree 35°SR, collect the mixed slurry and pass ammonia gas through the slurry, control the rate of passing ammonia gas at 30mL / min, wait for 15 minutes after passing ammonia gas, let it stand for 8 hour...

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Abstract

The invention relates to a preparation method of a primary composite modified fire-retardant paper material, and belongs to the technical field of new materials. According to the technical scheme of the primary composite modified fire-retardant paper material, halophyte-salicornia and suaeda salsa are used as modified fiber materials, a saline-alkali solution is adsorbed and is effectively storedin a plant internal structure solution, vacuum freeze drying is performed, the saline-alkali solution after vacuum freeze drying is added to paper pulp, and plant granules swell and adsorb cell outerwall moisture, and are mixed with an ammonia solution to form effective magnesium hydroxide and calcium hydroxide precipitate; the effective magnesium hydroxide and calcium hydroxide precipitate is stuffed to the inner parts of cell materials, so that the structural performance of the composite plant material is further improved, and inorganic filling is effectively formed, and effective fireprooffire-retardant modifying effect is formed; besides, according to the technical scheme, a salt solution existing in cell tissue liquid is adopted for deposition. Compared with the conventional adsorption and swelling technical scheme, the precipitate stuffing effect of the material is excellent.

Description

technical field [0001] The invention relates to a preparation method of an original composite modified flame-retardant paper material, which belongs to the technical field of new materials. Background technique [0002] The flame retardancy of paper and paper products is to try to hinder the thermal decomposition of fibers, suppress the generation of flammable gases, or achieve the goal by isolating heat and air and diluting flammable gases. It can be seen from the combustion mechanism of paper that to endow paper with fire and flame retardancy, the general flame retardant measures are all researched from destroying the combustible system. Flame retardants generally achieve the purpose of flame retardancy through one or more of the following methods. endothermic effect. Flame retardants have a heat-absorbing function, and use the flame retardants to decompose when heated. This process is generally an endothermic reaction. The flame retardants absorb heat and thermally deco...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H27/00D21H11/12D21D1/02D21F13/02D21F5/00
CPCD21D1/02D21F5/00D21F13/02D21H11/12D21H27/00
Inventor 何治伟韩桂林
Owner 何治伟
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