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Environment-friendly wood flame retardant

A flame retardant and wood technology, applied in the field of flame retardant materials, can solve problems such as poor flame retardant effect and toxic smoke, and achieve the effects of increasing filling amount, improving adhesion and high thermal stability

Inactive Publication Date: 2019-01-15
FOSHAN CHANCHENG DISTRICT NUOGAO ENVIRONMENTAL PROTECTION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide an environmentally friendly wood flame retardant for the current commonly used flame retardants that produce toxic smoke when exposed to fire and have poor flame retardant effects

Method used

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Examples

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Effect test

preparation example Construction

[0030] Preparation of flame retardant microspheres: in a water bath at 28~35°C, mix sodium alginate and sodium sulfate solution with a concentration of 0.1mol / L at a mass ratio of 1:8~15, and stir magnetically at 350~600r / min for 30~55min , to obtain a mixed solution, take the mixed solution according to the mass ratio of 8:0.1:1~3, add calcium chloride and ferric chloride to mix, stir at 300~500r / min for 1~3h, and obtain a gel solution, add a gel solution with a quality of 6~10 % epichlorohydrin and NaOH with a concentration of 0.1mol / L of 8-15% of the mass of the gel solution were mixed and stirred, heated to 55-70°C, kept for 6-8 hours, cooled to room temperature, suction filtered, and the filter residue was measured by mass Ratio 1:20~40 Add EDTA solution with a concentration of 0.1mol / L, let it stand at room temperature for 3~5h, filter, take the filter cake and wash it with deionized water for 3~5 times, take the washed filter cake according to the mass ratio of 10:0.3 :...

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Abstract

The invention discloses an environment-friendly wood flame retardant, and belongs to the field of flame-retardant materials. According to the environment-friendly wood flame retardant, fibers with different particle diameters are treated by alkali liquid, part of hemicellulose and lignin in bagasse are destroyed, the degree of crystallinity of the bagasse is decreased, the reactivity of the fibersis improved, C-C of a vicinal diol structure in an oxidable molecular structure of sodium periodate is broken, two aldehyde groups are generated, part of hydroxyl in the cellulose structure is converted into the aldehyde groups through pyridinium chlorochromate under the effect of CH2Cl2, the adhesion force of the flame retardant on the surface of the wood is improved, and the flame retardant effect is effectively maintained for a long period. Ions generated after ionization of metal salt components inside the system in water can be adsorbed to the surface of an interface film, metal salt isgradually separated out while moisture is reduced under the heat action, the ferric oxide has a certain dehydration effect, and the moisture is generated for heat absorption and flame retarding. The environment-friendly wood flame retardant solves the problems that a commonly-used flame retardant can generate toxic smoke in the case of fire at present, and the flame retarding effect is not good.

Description

technical field [0001] The invention belongs to the field of flame retardant materials, and in particular relates to an environmentally friendly wood flame retardant. Background technique [0002] Wood is one of the four major building materials (reinforced steel, concrete, plastic, and wood). It has natural texture and gives people a sense of beauty. It is non-toxic and harmless, and is recognized as a renewable and environmentally friendly material. With the development of the economy and the improvement of people's living standards, wood and its products are favored by people for their unique charm of natural materials. Wooden furniture, wooden doors and windows, wooden floors and various wood products with good texture and beautiful shape have entered thousands of homes. Thousands of households, beautifying life and improving taste, have gradually become the fashion pursued by people, making the market's demand for wood on the rise year by year. As a natural degradable ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27K3/52
CPCB27K3/52
Inventor 胡次兵陈建春庞成荣
Owner FOSHAN CHANCHENG DISTRICT NUOGAO ENVIRONMENTAL PROTECTION TECH CO LTD
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