Loss-resistant mildew-proof flame retardant for wood and bamboo and preparation method and application of loss-resistant mildew-proof flame retardant

Abstract

The invention discloses a loss-resistant mildew-proof flame retardant for wood and bamboo wood and a preparation method and application of the loss-resistant mildew-proof flame retardant for the wood and bamboo wood, and the loss-resistant mildew-proof flame retardant for the wood and bamboo wood has the advantages that through the synergistic effect of a surfactant and low-molecular resin (polyethylene glycol diglycidyl ether); the compatibility problem between an organic antiseptic and mildew-proof agent (isothiazolinone organic mildew-proof agent) and an inorganic flame retardant (boric acid and ammonium polyphosphate) is successfully solved, the mildew-proof and flame-retardant properties of wood can be effectively improved, polyethylene glycol diglycidyl ether reacts with cell walls of wood and bamboos under the action of an initiator, so that the compatibility between the organic antiseptic and mildew-proof agent (isothiazolinone organic mildew-proof agent) and the inorganic flame retardant (boric acid and ammonium polyphosphate) is improved. The excellent leach resistance is endowed.

Description

Technical Field

[0001] The invention relates to the technical field of mildew-proof flame retardants, and in particular to an anti-loss mildew-proof flame retardant for wood and bamboo materials, and a preparation method and application thereof. Background Art

[0002] After years of rapid development, my country's wood flooring industry has formed an industrial system characterized by multiple categories and specifications, covering production, sales, installation and after-sales service, and gradually becoming mature. Among them, solid wood composite flooring is favored by the market because of its stable quality and easy maintenance. This type of floor is usually composed of panels made of solid wood plywood or veneer, solid wood strip core and veneer bottom board. The quality of the panel is the key factor determining the quality of the whole board, and its cost directly affects the market competitiveness of the product. The raw materials used for wood flooring are natural renewable biomass materials, which have the advantages of degradability, renewability and beautiful texture. Therefore, it is widely used in construction, decoration and furniture. However, although wood has many advantages as a natural organic polymer material, its application field will be limited if it is not waterproof, moisture-proof and flame-retardant. The product added value is low, and it is highly flammable and faces a high risk of fire. According to statistics, about 5.1 million fires occur worldwide each year, most of which are caused by wood materials, killing about 100,000 people. In addition, wood is susceptible to biological erosion such as termites and fungi during use, which affects its quality and may cause potential casualties and property losses. Therefore, in order to improve the economic value and use value of various wood and bamboo products, mildew and flame retardant treatment of wood and bamboo is a key improvement measure.

[0003] At present, there are many kinds of mildew-proof flame retardants used for mildew-proof and flame-retardant treatment of wood and bamboo. For a long time, traditional flame retardants such as antimony trioxide, aluminum hydroxide and zinc bromide have been widely criticized for their low flame retardant efficiency, large dosage and negative impact on the environment. In order to achieve the expected flame retardant effect, these traditional flame retardants usually need to be added in high proportions, which not only increases the material cost, but also may damage the physical properties of the material to a certain extent. What's more, the harmful substances they produce during production and use pose a potential threat to the ecological environment and human health. On the other hand, traditional mildew-proof and preservatives for wood and bamboo, such as copper chromate, ammonia-soluble copper arsenate, copper chromium arsenate, sodium pentachlorophenol and pentachlorophenol, mainly rely on highly toxic chemical reagents. Although these reagents have shown significant effects in inhibiting the growth of mold and decay fungi, their high toxicity poses a serious threat to human health and environmental safety. In the context of sustainable development, their application is facing more and more restrictions.

[0004] In addition, what is even more difficult is that the mildew inhibitors and flame retardants widely used in the market generally have problems of uneven mixing and poor compatibility. When these functional additives cannot be evenly dispersed or fully combined with the substrate, their inherent flame retardant or mildew-proof effects will be greatly reduced or even completely ineffective. Moreover, the anti-loss performance of these traditional additives is generally weak, and they are easily lost from wood and bamboo materials under the influence of water vapor, rain or humid environment, making it difficult for the treated wood and bamboo materials to maintain their mildew and flame retardant properties for a long time. This means that after the wood and bamboo materials are treated, their protective effect will gradually decay over time, thereby shortening their service life and possibly causing safety hazards.

[0005] In order to solve the above problems, it is urgent to develop new, efficient, environmentally friendly and long-lasting flame retardant and mildew-proof materials and technologies to meet the society's growing demand for sustainable development and green environmental protection. These new materials and technologies should not only have excellent flame retardant and mildew-proof properties, but also have good compatibility, dispersibility and excellent anti-loss properties, so as to ensure that the treated wood and bamboo materials always maintain excellent performance during long-term use. Summary of the invention

[0006] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide an anti-loss mildew flame retardant for wood and bamboo materials with good compatibility, dispersibility and excellent anti-loss performance. At the same time, the present invention also provides a preparation method and application of the mildew flame retardant.

[0007] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0008] An anti-loss mildew-proof flame retardant for wood and bamboo materials, the raw materials comprising a flame retardant solution and a mildew-proof agent solution in a mass ratio of 5-8:1;

[0009] The flame retardant solution comprises the following raw material components by weight:

[0010] 1.5-3 parts of boric acid solution

[0011] 1.5-3 parts of ammonium polyphosphate solution

[0012] The mildewcide solution comprises the following raw material components by weight:

[0013]

[0014] As a further improvement to the above technical solution:

[0015] The organic solvent includes one or more of propylene glycol, ethylene glycol phenyl ether, propylene glycol phenyl ether, and dodecyl alcohol ester.

[0016] The surfactant includes alkylphenol polyoxyethylene ether.

[0017] The initiator includes triethylenetetramine.

[0018] The invention also comprises a pH regulator, which is an acetic acid solution, and the pH value of the mildew-proof flame retardant is adjusted to the range of 5.5-6.0.

[0019] The mass fraction of the boric acid solution is 1.5%-3%, and the mass fraction of the ammonium polyphosphate solution is 1.5%-3%.

[0020] As a general inventive concept, the present invention also provides a method for preparing an anti-loss mildew-proof flame retardant for wood and bamboo materials, comprising the following steps:

[0021] The flame retardant solution and the mildew-proof agent solution are mixed in a mass ratio of 5-8:1, the pH value is adjusted to a range of 5.5-6.0, and stirred at a temperature of 30°C-50°C and a rotation speed of 300-800 rpm for 10-20 minutes to obtain an anti-loss mildew-proof flame retardant for wood and bamboo materials;

[0022] The flame retardant solution comprises a mixed solution of boric acid and ammonium polyphosphate, and the mildewcide solution comprises a mixed solution of isothiazolinone organic mildewcide, 1,3-dihydroxymethyl-5,5-dimethylhydantoin, polyethylene glycol diglycidyl ether and an initiator.

[0023] As a further improvement to the above technical solution:

[0024] The flame retardant solution is prepared by the following steps: adding a boric acid solution dropwise into an ammonium polyphosphate solution, stirring the solution at a temperature of 30° C. to 60° C. and a rotation speed of 500 to 2000 rpm for 5 to 10 minutes to obtain a flame retardant solution.

[0025] The mildew-proofing agent solution is prepared by the following steps: dissolving an isothiazolinone organic mildew-proofing agent and 1,3-dihydroxymethyl-5,5-dimethylhydantoin in an organic solvent and stirring the mixture at a rotation speed of 200-2000 rpm for 5-10 minutes, heating the mixture to 50° C.-70° C., adding a surfactant, polyethylene glycol diglycidyl ether and an initiator and stirring the mixture at a rotation speed of 300-1200 rpm for 5-10 minutes to obtain the mildew-proofing agent solution.

[0026] As a general inventive concept, the present invention also provides the aforementioned anti-loss mildew-proof flame retardant for wood and bamboo materials and the use of the anti-loss mildew-proof flame retardant for wood and bamboo materials prepared by the aforementioned preparation method in mildew-proof treatment of wood and bamboo materials.

[0027] As a further improvement to the above technical solution:

[0028] The anti-loss mildew and flame retardant for wood or bamboo is applied on the surface of the wood or bamboo, and dried at a temperature of 60-80° C. so that the polyethylene glycol diglycidyl ether undergoes a cross-linking reaction with the cell wall under the initiation of an initiator.

[0029] The wood or bamboo is immersed in the mildew-proof flame retardant, so that the wood or bamboo material is applied with the anti-loss mildew-proof flame retardant on the surface of the wood or bamboo. The impregnation is preferably pressurized impregnation, the temperature is room temperature, the pressure is preferably 1-1.5 standard atmospheres, and more preferably 1-1.3 standard atmospheres; the impregnation time is preferably 5-10 hours, and more preferably 6-7 hours.

[0030] The drying temperature is 50-70° C., more preferably 60-65° C.; the drying time is 10-14 h, more preferably 12 h.

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] The anti-loss mildew and flame retardant for wood and bamboo materials of the present invention successfully solves the compatibility problem between organic antiseptic mildew and mildew inhibitors (isothiazolinone organic mildew inhibitors) and inorganic flame retardants (boric acid and ammonium polyphosphate) through the synergistic effect of a surfactant and a low molecular weight resin (polyethylene glycol diglycidyl ether), and can effectively improve the mildew and flame retardant properties of wood. Polyethylene glycol diglycidyl ether reacts with the cell wall of wood and bamboo materials under the action of an initiator, thereby giving the wood and bamboo materials excellent anti-loss properties.

[0033] The invention discloses a method for preparing an anti-loss mildew-proof flame retardant for wood and bamboo materials. The method has low temperature, low energy consumption and simple steps during the preparation process.

[0034] The invention discloses an anti-loss mildew flame retardant for wood and bamboo materials. When used for mildew prevention of wood and bamboo materials, polyethylene glycol diglycidyl ether is used to react with the cell wall of the wood and bamboo materials under the action of an initiator to give the wood and bamboo materials excellent anti-loss performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a process flow chart of Example 1 of the present invention. DETAILED DESCRIPTION

[0036] The present invention will be described in further detail below. Unless otherwise specified, the instruments or materials used in the present invention are commercially available.

[0037] Example 1

[0038] The present embodiment provides an anti-loss mildew-proof flame retardant for wood and bamboo materials, wherein the raw materials include a flame retardant solution and a mildew-proof agent solution in a mass ratio of 6:1; the mildew-proof agent solution includes the following raw material components in parts by weight: 0.5 parts of an isothiazolinone organic mildew-proof agent, 0.5 parts of 1,3-dihydroxymethyl-5,5-dimethylhydantoin, 89.97 parts of propylene glycol, 0.5 parts of a surfactant, 3 parts of polyethylene glycol diglycidyl ether (which is both a stabilizer and an anti-loss agent), and 0.03 parts of an initiator; the flame retardant solution includes the following raw material components in parts by weight: 3 parts of a 3% boric acid solution by mass and 3 parts of a 3% ammonium polyphosphate solution by mass.

[0039] like Figure 1 As shown, the preparation method of a mildew-proof flame retardant for wood and bamboo materials of this embodiment comprises the following steps:

[0040] S1. Preparation of raw materials:

[0041] A 3% by mass boric acid solution was added dropwise to a 3% by mass ammonium polyphosphate solution, and then heated to 30° C. and stirred at a rotation speed of 500 rpm for 10 minutes to obtain a flame retardant solution (the mass ratio of boric acid to ammonium polyphosphate in the flame retardant solution was 1:1).

[0042] 0.50 g of isothiazolinone (4,5-dichloro-N-octyl-4-isothiazoline-3-one, DCOIT) and 0.50 g of 1,3-dihydroxymethyl-5,5-dimethylhydantoin were dissolved in 89.97 g of propylene glycol and stirred at 300 rpm for 10 min, then heated to 60°C, 0.5 g of surfactant (alkylphenol alkane vinyl ether) was added, and then 3.00 g of polyethylene glycol diglycidyl ether (low molecular weight resin) and 0.03 g of triethylenetetramine were added thereto, and stirred at 600 rpm for 10 min to obtain a mildew inhibitor solution.

[0043] S2. Mixing raw materials: Mix the flame retardant solution and the mildew preventer solution in a mass ratio of 6:1, then take 100 mL of the mixed solution, add 3 mL of acetic acid solution (pH adjuster), heat to 60° C., and stir at a rotation speed of 400 rpm for 15 minutes to obtain an anti-loss mildew flame retardant for wood and bamboo.

[0044] An application of the anti-loss mildew-proof flame retardant for wood and bamboo materials of the present embodiment in mildew-proof treatment of wood and bamboo materials comprises the following steps: immersing the wood in the anti-loss mildew-proof flame retardant for wood and bamboo materials, drying at 80° C. for 12 hours, allowing polyethylene glycol diglycidyl ether to undergo a cross-linking reaction with the cell wall under the initiation of triethylenetetramine, to obtain mildew-proof treated modified wood.

[0045] In the application step of the present invention, the impregnation is pressurized impregnation, the pressure is 1-1.2 standard atmospheres (1 standard atmosphere in this embodiment), the time is 5-10 hours (the time is 6 hours), and the temperature is room temperature.

[0046] Example 2

[0047] The present embodiment provides an anti-loss mildew-proof flame retardant for wood and bamboo materials, wherein the raw materials include a flame retardant solution and a mildew-proof agent solution in a mass ratio of 6:1; the mildew-proof agent solution includes the following raw material components in parts by weight: 1 part of isothiazolinone organic mildew-proof agent, 1 part of 1,3-dihydroxymethyl-5,5-dimethylhydantoin, 89.97 parts of propylene glycol, 0.5 parts of surfactant, 3 parts of polyethylene glycol diglycidyl ether, and 0.03 parts of initiator; the flame retardant solution includes the following raw material components in parts by weight: 3 parts of 3% boric acid solution by mass and 3 parts of 3% ammonium polyphosphate solution by mass.

[0048] The method for preparing a mildew-proof flame retardant for wood and bamboo materials of this embodiment is substantially the same as that of embodiment 1, except that the content of the mildew-proof active ingredient in the mildew-proof solution is increased to 2 times, and comprises the following steps:

[0049] S1. Preparation of raw materials:

[0050] A 3% by mass boric acid solution was added dropwise to a 3% by mass ammonium polyphosphate solution, and then heated to 30° C. and stirred at a rotation speed of 500 rpm for 10 minutes to obtain a flame retardant solution (the mass ratio of boric acid to ammonium polyphosphate in the flame retardant solution was 1:1).

[0051] 1.00 g of isothiazolinone (4,5-dichloro-N-octyl-4-isothiazoline-3-one, DCOIT) and 1.00 g of 1,3-dihydroxymethyl-5,5-dimethylhydantoin were dissolved in 89.97 g of propylene glycol and stirred at 300 rpm for 10 min, then heated to 60°C, 0.5 g of surfactant (alkylphenol alkane vinyl ether), 3.00 g of polyethylene glycol diglycidyl ether and 0.03 g of triethylenetetramine were added, and stirred at 600 rpm for 10 min to obtain a mildew inhibitor solution.

[0052] S2. Mixing raw materials: Mix the flame retardant solution and the mildew preventer solution in a mass ratio of 6:1, then add 3 mL of acetic acid solution to 100 mL of the mixed solution, heat to 60° C., and stir at a rotation speed of 400 rpm for 15 minutes to obtain an anti-loss mildew flame retardant for wood and bamboo.

[0053] An application of the anti-loss mildew-proof flame retardant for wood and bamboo materials of this embodiment in mildew-proof treatment of wood and bamboo materials, and the application steps are the same as those of embodiment 1.

[0054] Example 3

[0055] The present embodiment provides an anti-loss mildew-proof flame retardant for wood and bamboo materials, wherein the raw materials include a flame retardant solution and a mildew-proof agent solution in a mass ratio of 6:1; the mildew-proof agent solution includes the following raw material components in parts by weight: 0.5 parts of an isothiazolinone organic mildew-proof agent, 0.5 parts of 1,3-dihydroxymethyl-5,5-dimethylhydantoin, 89.97 parts of propylene glycol, 0.5 parts of a surfactant, 6 parts of polyethylene glycol diglycidyl ether, and 0.06 parts of an initiator; the flame retardant solution includes the following raw material components in parts by weight: 3 parts of a 3% boric acid solution by mass and 3 parts of a 3% ammonium polyphosphate solution by mass.

[0056] The preparation method of a kind of anti-loss mildew flame retardant for wood and bamboo materials in this embodiment is substantially the same as that in embodiment 1, except that the amount of polyethylene glycol diglycidyl ether and triethylenetetramine is increased to 2 times, and comprises the following steps:

[0057] S1. Preparation of raw materials:

[0058] A 3% by mass boric acid solution was added dropwise to a 3% by mass ammonium polyphosphate solution, and then heated to 30° C. and stirred at a rotation speed of 500 rpm for 10 minutes to obtain a flame retardant solution (the mass ratio of boric acid to ammonium polyphosphate in the flame retardant solution was 1:1).

[0059] 0.50 g of isothiazolinone (4,5-dichloro-N-octyl-4-isothiazoline-3-one, DCOIT) and 0.50 g of 1,3-dihydroxymethyl-5,5-dimethylhydantoin were dissolved in 89.97 g of propylene glycol and stirred at 300 rpm for 10 min, then heated to 60°C, 0.5 g of surfactant (alkylphenol alkane vinyl ether), 6.00 g of polyethylene glycol diglycidyl ether and 0.06 g of triethylenetetramine were added, and stirred at 600 rpm for 10 min to obtain a mildew inhibitor solution.

[0060] S2. Mixing raw materials: Mix the flame retardant solution and the mildew preventer solution in a mass ratio of 6:1, then add 3.5 mL of acetic acid solution to 100 mL of the mixed solution, heat to 60° C., and stir at a rotation speed of 400 rpm for 15 minutes to obtain an anti-loss mildew flame retardant for wood and bamboo.

[0061] An application of the anti-loss mildew-proof flame retardant for wood and bamboo materials of this embodiment in mildew-proof treatment of wood and bamboo materials, and the application steps are the same as those of embodiment 1.

[0062] Example 4

[0063] The present embodiment provides an anti-loss mildew-proof flame retardant for wood and bamboo materials, wherein the raw materials include a flame retardant solution and a mildew-proof agent solution in a mass ratio of 6:1; the mildew-proof agent solution includes the following raw material components in parts by weight: 1 part of isothiazolinone organic mildew-proof agent, 1 part of 1,3-dihydroxymethyl-5,5-dimethylhydantoin, 89.97 parts of propylene glycol, 0.5 parts of surfactant, 6 parts of polyethylene glycol diglycidyl ether, and 0.06 parts of initiator; the flame retardant solution includes the following raw material components in parts by weight: 3 parts of 3% boric acid solution by mass and 3 parts of 3% ammonium polyphosphate solution by mass.

[0064] The preparation method of a kind of anti-loss mildew flame retardant for wood and bamboo materials in this embodiment is substantially the same as that in Example 2, except that the amount of polyethylene glycol diglycidyl ether and triethylenetetramine is increased to 2 times, and comprises the following steps:

[0065] S1. Preparation of raw materials:

[0066] A 3% by mass boric acid solution was added dropwise to a 3% by mass ammonium polyphosphate solution, and then heated to 30° C. and stirred at a rotation speed of 500 rpm for 10 minutes to obtain a flame retardant solution (the mass ratio of boric acid to ammonium polyphosphate in the flame retardant solution was 1:1).

[0067] 1.00 g of isothiazolinone (4,5-dichloro-N-octyl-4-isothiazoline-3-one, DCOIT) and 1.00 g of 1,3-dihydroxymethyl-5,5-dimethylhydantoin were dissolved in 89.97 g of propylene glycol and stirred at 300 rpm for 10 min, then heated to 60°C, 0.5 g of surfactant (alkylphenol alkyl vinyl ether), 6.00 g of polyethylene glycol diglycidyl ether and 0.06 g of triethylenetetramine were added, and stirred at 600 rpm for 10 min to obtain a mildew inhibitor solution.

[0068] S2. Mixing raw materials: Mix the flame retardant solution and the mildew preventer solution in a mass ratio of 6:1, then add 3.5 mL of acetic acid solution to 100 mL of the mixed solution, heat to 60° C., and stir at a rotation speed of 400 rpm for 15 minutes to obtain an anti-loss mildew flame retardant for wood and bamboo.

[0069] An application of the anti-loss mildew-proof flame retardant for wood and bamboo materials of this embodiment in mildew-proof treatment of wood and bamboo materials, and the application steps are the same as those of embodiment 1.

[0070] Example 5

[0071] The present embodiment provides an anti-loss mildew-proof flame retardant for wood and bamboo materials, wherein the raw materials include a flame retardant solution and a mildew-proof agent solution in a mass ratio of 6:1; the mildew-proof agent solution includes the following raw material components in parts by weight: 0.5 parts of an isothiazolinone organic mildew-proof agent, 0.5 parts of 1,3-dihydroxymethyl-5,5-dimethylhydantoin, 89.97 parts of propylene glycol, 0.5 parts of a surfactant, 6 parts of polyethylene glycol diglycidyl ether, and 0.06 parts of an initiator; the flame retardant solution includes the following raw material components in parts by weight: 1.5 parts of a 1.5% boric acid solution by mass and 1.5 parts of a 1.5% ammonium polyphosphate solution by mass.

[0072] The method for preparing a mildew-proof flame retardant for wood and bamboo materials of this embodiment is substantially the same as that of embodiment 3, except that the concentration of the boric acid solution and the ammonium polyphosphate solution in the flame retardant solution of this embodiment is 1.5%, and comprises the following steps:

[0073] S1. Preparation of raw materials:

[0074] A 1.5% by mass boric acid solution was added dropwise to a 1.5% by mass ammonium polyphosphate solution, and then heated to 30° C. and stirred at 500 rpm for 10 min to obtain a flame retardant solution (the mass ratio of boric acid to ammonium polyphosphate in the flame retardant solution was 1:1).

[0075] 0.50 g of isothiazolinone (4,5-dichloro-N-octyl-4-isothiazoline-3-one, DCOIT) and 0.50 g of 1,3-dihydroxymethyl-5,5-dimethylhydantoin were dissolved in 89.97 g of propylene glycol and stirred at 300 rpm for 10 min, then heated to 60°C, 0.5 g of surfactant (alkylphenol alkane vinyl ether), 6.00 g of polyethylene glycol diglycidyl ether and 0.06 g of triethylenetetramine were added, and stirred at 600 rpm for 10 min to obtain a mildew inhibitor solution.

[0076] S2. Mixing raw materials: Mix the flame retardant solution and the mildew preventer solution in a mass ratio of 6:1, then add 3.5 mL of acetic acid solution to 100 mL of the mixed solution, heat to 60° C., and stir at a rotation speed of 400 rpm for 15 minutes to obtain an anti-loss mildew flame retardant for wood and bamboo.

[0077] An application of the anti-loss mildew-proof flame retardant for wood and bamboo materials of this embodiment in mildew-proof treatment of wood and bamboo materials, and the application steps are the same as those of embodiment 1.

[0078] Example 6

[0079] The present embodiment provides an anti-loss mildew-proof flame retardant for wood and bamboo materials, wherein the raw materials include a flame retardant solution and a mildew-proof agent solution in a mass ratio of 6:1; the mildew-proof agent solution includes the following raw material components in parts by weight: 1 part of isothiazolinone organic mildew-proof agent, 1 part of 1,3-dihydroxymethyl-5,5-dimethylhydantoin, 89.97 parts of propylene glycol, 0.5 part of surfactant, 6 parts of polyethylene glycol diglycidyl ether, and 0.06 part of initiator; the flame retardant solution includes the following raw material components in parts by weight: 1.5 parts of 1.5% boric acid solution by mass and 1.5 parts of 1.5% ammonium polyphosphate solution by mass.

[0080] The preparation method of a kind of anti-loss mildew-proof flame retardant for wood and bamboo materials of this embodiment is substantially the same as that of embodiment 5, except that the amount of isothiazolinone used in this embodiment is increased, and comprises the following steps:

[0081] S1. Preparation of raw materials:

[0082] A 1.5% by mass boric acid solution was added dropwise to a 1.5% by mass ammonium polyphosphate solution, and then heated to 30° C. and stirred at 500 rpm for 10 min to obtain a flame retardant solution (the mass ratio of boric acid to ammonium polyphosphate in the flame retardant solution was 1:1).

[0083] 1.00 g of isothiazolinone (4,5-dichloro-N-octyl-4-isothiazoline-3-one, DCOIT) and 1.00 g of 1,3-dihydroxymethyl-5,5-dimethylhydantoin were dissolved in 89.97 g of propylene glycol and stirred at 300 rpm for 10 min, then heated to 60°C, 0.5 g of surfactant (alkylphenol alkyl vinyl ether), 6.00 g of polyethylene glycol diglycidyl ether and 0.06 g of triethylenetetramine were added, and stirred at 600 rpm for 10 min to obtain a mildew inhibitor solution.

[0084] S2. Mixing raw materials: Mix the flame retardant solution and the mildew preventer solution in a mass ratio of 6:1, then add 3.5 mL of acetic acid solution to 100 mL of the mixed solution, heat to 60° C., and stir at a rotation speed of 400 rpm for 15 minutes to obtain an anti-loss mildew flame retardant for wood and bamboo.

[0085] An application of the anti-loss mildew-proof flame retardant for wood and bamboo materials of this embodiment in mildew-proof treatment of wood and bamboo materials, and the application steps are the same as those of embodiment 1.

[0086] Comparative Example 1

[0087] The comparative example provides a mildew-proof flame retardant for wood and bamboo materials, wherein the raw materials include a flame retardant solution and a mildew-proof agent solution in a mass ratio of 6:1; the mildew-proof agent solution includes the following raw material components in parts by weight: 0.5 parts of copper chromium arsenic, 0.5 parts of pentachlorophenol, 89.97 parts of propylene glycol, 0.5 parts of a surfactant, 3 parts of polyethylene glycol diglycidyl ether, and 0.03 parts of an initiator; the flame retardant solution includes the following raw material components in parts by weight: 3 parts of a 3% boric acid solution by mass and 3 parts of a 3% ammonium polyphosphate solution by mass.

[0088] The preparation method of a mildew-proof flame retardant for wood and bamboo materials in this comparative example is substantially the same as that in Example 1, except that DCOIT mildew-proof agent and 1,3-dihydroxymethyl-5,5-dimethylhydantoin are replaced with copper chromium arsenic and pentachlorophenol, and comprises the following steps:

[0089] S1. Preparation of raw materials:

[0090] A 3% by mass boric acid solution was added dropwise to a 3% by mass ammonium polyphosphate solution, and then heated to 30° C. and stirred at a rotation speed of 500 rpm for 10 minutes to obtain a flame retardant solution (the mass ratio of boric acid to ammonium polyphosphate in the flame retardant solution was 1:1).

[0091] 0.5 g of copper chromium arsenic and 0.5 g of pentachlorophenol were dissolved in 89.97 g of propylene glycol and stirred at 300 rpm for 10 min, then heated to 60°C, 0.5 g of surfactant (alkylphenol alkyl vinyl ether), 3.00 g of polyethylene glycol diglycidyl ether and 0.03 g of triethylenetetramine were added, and stirred at 400 rpm for 30 min to obtain a mildew inhibitor solution.

[0092] S2. Mixing raw materials: Mix the flame retardant solution and the mildew preventer solution in a mass ratio of 6:1, then add 3 mL of acetic acid solution to 100 mL of the mixed solution, heat to 60° C., and stir at a rotation speed of 400 rpm for 15 minutes to obtain a mildew preventer flame retardant for wood and bamboo materials.

[0093] An application of the mildew-proof flame retardant for wood and bamboo materials of this comparative example in mildew-proof treatment of wood and bamboo materials, and the application steps are the same as those of Example 1.

[0094] Comparative Example 2

[0095] The comparative example provides a mildew-proof flame retardant for wood and bamboo materials, wherein the raw materials include a flame retardant solution and a mildew-proof agent solution in a mass ratio of 6:1; the mildew-proof agent solution includes the following raw material components in parts by weight: 0.5 parts of isothiazolinone organic mildew-proof agent, 0.5 parts of 1,3-dihydroxymethyl-5,5-dimethylhydantoin, 89.97 parts of propylene glycol, 0.5 parts of surfactant, and 3 parts of epoxy resin; the flame retardant solution includes the following raw material components in parts by weight: 3 parts of 3% boric acid solution by mass and 3 parts of 3% ammonium polyphosphate solution by mass.

[0096] The preparation method of a mildew-proof flame retardant for wood and bamboo materials in this comparative example is substantially the same as that in Example 1, except that the low molecular weight resin (polyethylene glycol diglycidyl ether) is replaced with epoxy resin, and no initiator is added, and comprises the following steps:

[0097] S1. Preparation of raw materials:

[0098] A 3% by mass boric acid solution was added dropwise to a 3% by mass ammonium polyphosphate solution, and then heated to 30° C. and stirred at a rotation speed of 500 rpm for 10 minutes to obtain a flame retardant solution (the mass ratio of boric acid to ammonium polyphosphate in the flame retardant solution was 1:1).

[0099] 0.50 g of isothiazolinone (4,5-dichloro-N-octyl-4-isothiazoline-3-one, DCOIT) and 0.50 g of 1,3-dihydroxymethyl-5,5-dimethylhydantoin were dissolved in 89.97 g of propylene glycol and stirred at 300 rpm for 10 min, then heated to 60°C, 0.5 g of a surfactant (alkylphenol vinyl ether) and 3.00 g of an epoxy resin were added, and stirred at 400 rpm for 30 min to obtain a mildew inhibitor solution.

[0100] S2. Mixing raw materials: Mix the flame retardant solution and the mildew preventer solution in a mass ratio of 6:1, then add 3 mL of acetic acid solution to 100 mL of the mixed solution, heat to 60° C., and stir at a rotation speed of 400 rpm for 15 minutes to obtain a mildew preventer flame retardant for wood and bamboo materials.

[0101] An application of the mildew-proof flame retardant for wood and bamboo materials of this comparative example in mildew-proof treatment of wood and bamboo materials, and the application steps are the same as those of Example 1.

[0102] Comparative Example 3

[0103] The comparative example provides a mildew-proof flame retardant for wood and bamboo materials, wherein the raw materials include a flame retardant solution and a mildew-proof agent solution in a mass ratio of 6:1; the mildew-proof agent solution includes the following raw material components in parts by weight: 0.5 parts of isothiazolinone organic mildew-proof agent, 0.5 parts of 1,3-dihydroxymethyl-5,5-dimethylhydantoin, 89.97 parts of propylene glycol, 0.5 parts of surfactant, and 3 parts of tannic acid; the flame retardant solution includes the following raw material components in parts by weight: 3 parts of 3% boric acid solution by mass and 3 parts of 3% ammonium polyphosphate solution by mass.

[0104] The preparation method of a mildew-proof flame retardant for wood and bamboo materials in this comparative example is substantially the same as that in Example 1, except that the low molecular weight resin (polyethylene glycol diglycidyl ether) is replaced with tannic acid, and no initiator is added, and comprises the following steps:

[0105] S1. Preparation of raw materials:

[0106] A 3% by mass boric acid solution was added dropwise to a 3% by mass ammonium polyphosphate solution, and then heated to 30° C. and stirred at a rotation speed of 500 rpm for 10 minutes to obtain a flame retardant solution (the mass ratio of boric acid to ammonium polyphosphate in the flame retardant solution was 1:1).

[0107] 0.50 g of isothiazolinone (4,5-dichloro-N-octyl-4-isothiazoline-3-one, DCOIT) and 0.50 g of 1,3-dihydroxymethyl-5,5-dimethylhydantoin were dissolved in 89.97 g of propylene glycol and stirred at 300 rpm for 10 min, then heated to 60°C, 0.5 g of a surfactant (alkylphenol vinyl ether) and 3.00 g of tannic acid were added, and stirred at 400 rpm for 30 min to obtain a mildew inhibitor solution.

[0108] S2. Mixing raw materials: Mix the flame retardant solution and the mildew preventer solution in a mass ratio of 6:1, then add 3 mL of acetic acid solution to 100 mL of the mixed solution, heat to 60° C., and stir at a rotation speed of 400 rpm for 15 minutes to obtain a mildew preventer flame retardant for wood and bamboo materials.

[0109] An application of the mildew-proof flame retardant for wood and bamboo materials of this comparative example in mildew-proof treatment of wood and bamboo materials, and the application steps are the same as those of Example 1.

[0110] Comparative Example 4

[0111] The comparative example provides a mildew-proof flame retardant for wood and bamboo materials, wherein the raw materials include a flame retardant solution and a mildew-proof agent solution in a mass ratio of 6:1; the mildew-proof agent solution includes the following raw material components in parts by weight: 2 parts of isothiazolinone organic mildew-proof agent, 1 part of 1,3-dihydroxymethyl-5,5-dimethylhydantoin, 89.97 parts of propylene glycol, 0.5 parts of surfactant, 3 parts of polyethylene glycol diglycidyl ether, and 0.03 parts of initiator; the flame retardant solution includes the following raw material components in parts by weight: 3 parts of 3% boric acid solution by mass and 3 parts of 3% ammonium polyphosphate solution by mass.

[0112] The preparation method of a mildew-proof flame retardant for wood and bamboo materials in this comparative example is substantially the same as that in Example 2, except that the content of isothiazolinone is increased, and comprises the following steps:

[0113] S1. Preparation of raw materials:

[0114] A 3% by mass boric acid solution was added dropwise to a 3% by mass ammonium polyphosphate solution, and then heated to 30° C. and stirred at a rotation speed of 500 rpm for 10 minutes to obtain a flame retardant solution (the mass ratio of boric acid to ammonium polyphosphate in the flame retardant solution was 1:1).

[0115] 2.00 g of isothiazolinone (4,5-dichloro-N-octyl-4-isothiazoline-3-one, DCOIT) and 1.00 g of 1,3-dihydroxymethyl-5,5-dimethylhydantoin were dissolved in 89.97 g of propylene glycol and stirred at 300 rpm for 10 min, then heated to 60°C, 0.5 g of surfactant (alkylphenol alkane vinyl ether), 3.00 g of polyethylene glycol diglycidyl ether and 0.03 g of triethylenetetramine were added, and stirred at 600 rpm for 10 min to obtain a mildew inhibitor solution.

[0116] S2. Mixing raw materials: Mix the flame retardant solution and the mildew preventer solution in a mass ratio of 6:1, then add 3 mL of acetic acid solution to 100 mL of the mixed solution, heat to 60° C., and stir at a rotation speed of 400 rpm for 15 minutes to obtain a mildew preventer flame retardant for wood and bamboo materials.

[0117] An application of the mildew-proof flame retardant for wood and bamboo materials of this comparative example in mildew-proof treatment of wood and bamboo materials, and the application steps are the same as those of Example 1.

[0118] Comparative Example 5

[0119] The comparative example provides a mildew-proof flame retardant for wood and bamboo materials, wherein the raw materials include a flame retardant solution and a mildew-proof agent solution in a mass ratio of 6:1; the mildew-proof agent solution includes the following raw material components in parts by weight: 2 parts of isothiazolinone organic mildew-proof agent, 1 part of 1,3-dihydroxymethyl-5,5-dimethylhydantoin, 89.97 parts of propylene glycol, 0.5 parts of surfactant, 3 parts of polyethylene glycol diglycidyl ether, and 0.03 parts of initiator; the flame retardant solution includes the following raw material components in parts by weight: 6 parts of 6% boric acid solution by mass and 6 parts of 6% ammonium polyphosphate solution by mass.

[0120] The preparation method of a mildew-proof flame retardant for wood and bamboo materials in this comparative example is substantially the same as that in comparative example 4, except that the content of boric acid is increased, and comprises the following steps:

[0121] S1. Preparation of raw materials:

[0122] A 6% by mass boric acid solution was added dropwise to a 6% by mass ammonium polyphosphate solution, and then heated to 30° C. and stirred at a rotation speed of 500 rpm for 10 minutes to obtain a flame retardant solution (the mass ratio of boric acid to ammonium polyphosphate in the flame retardant solution was 1:1).

[0123] 2.00 g of isothiazolinone (4,5-dichloro-N-octyl-4-isothiazoline-3-one, DCOIT) and 1.00 g of 1,3-dihydroxymethyl-5,5-dimethylhydantoin were dissolved in 89.97 g of propylene glycol and stirred at 300 rpm for 10 min, then heated to 60°C, 0.5 g of a surfactant (alkylphenol alkane vinyl ether), 3.00 g of polyethylene glycol diglycidyl ether and 0.03 g of triethylenetetramine were added thereto, and stirred at 600 rpm for 10 min to obtain a mildew inhibitor solution.

[0124] S2. Mixing raw materials: Mix the flame retardant solution and the mildew-proof agent solution in a mass ratio of 6:1, then add 3.5 mL of acetic acid solution to 100 mL of the mixed solution, heat to 60° C., and stir at a rotation speed of 400 rpm for 15 minutes to obtain a mildew-proof flame retardant for wood and bamboo materials.

[0125] An application of the mildew-proof flame retardant for wood and bamboo materials of this comparative example in mildew-proof treatment of wood and bamboo materials, and the application steps are the same as those of Example 1.

[0126] Comparative Example 6

[0127] The comparative example provides a mildew-proof flame retardant for wood and bamboo materials, wherein the raw materials include a flame retardant solution and a mildew-proof agent solution in a mass ratio of 6:1; the mildew-proof agent solution includes the following raw material components in parts by weight: 2 parts of isothiazolinone organic mildew-proof agent, 1 part of 1,3-dihydroxymethyl-5,5-dimethylhydantoin, 89.97 parts of propylene glycol, 0.5 parts of surfactant, and 6 parts of phenolic resin; the flame retardant solution includes the following raw material components in parts by weight: 6 parts of 6% boric acid solution by mass and 6 parts of 6% ammonium polyphosphate solution by mass.

[0128] The preparation method of a mildew-proof flame retardant for wood and bamboo materials in this comparative example is substantially the same as that in comparative example 5, except that the low molecular weight resin (polyethylene glycol diglycidyl ether) is replaced with a phenolic resin, and no initiator is added, and comprises the following steps:

[0129] S1. Preparation of raw materials:

[0130] A 6% by mass boric acid solution was added dropwise to a 6% by mass ammonium polyphosphate solution, and then heated to 30° C. and stirred at a rotation speed of 500 rpm for 10 minutes to obtain a flame retardant solution (the mass ratio of boric acid to ammonium polyphosphate in the flame retardant solution was 1:1).

[0131] 2.00 g of isothiazolinone (4,5-dichloro-N-octyl-4-isothiazoline-3-one, DCOIT) and 1.00 g of 1,3-dihydroxymethyl-5,5-dimethylhydantoin were dissolved in 89.97 g of propylene glycol and stirred at 300 rpm for 10 min, then heated to 60° C., 0.5 g of a surfactant (alkylphenol vinyl ether) and 6.00 g of a phenolic resin were added thereto, and stirred at 800 rpm for 30 min to obtain a mildew inhibitor solution.

[0132] S2. Mixing raw materials: Mix the flame retardant solution and the mildew-proof agent solution in a mass ratio of 6:1, then add 3.5 mL of acetic acid solution to 100 mL of the mixed solution, heat to 60° C., and stir at a rotation speed of 400 rpm for 15 minutes to obtain a mildew-proof flame retardant for wood and bamboo materials.

[0133] An application of the mildew-proof flame retardant for wood and bamboo materials of this comparative example in mildew-proof treatment of wood and bamboo materials, and the application steps are the same as those of Example 1.

[0134] Comparative Example 7

[0135] The comparative example provides a mildew-proof flame retardant for wood and bamboo materials, wherein the raw materials include a flame retardant solution and a mildew-proof agent solution in a mass ratio of 6:1; the mildew-proof agent solution includes the following raw material components in parts by weight: 1 part of isothiazolinone organic mildew-proof agent, 1 part of 1,3-dihydroxymethyl-5,5-dimethylhydantoin, 89.97 parts of propylene glycol, and 6 parts of phenolic resin; the flame retardant solution includes the following raw material components in parts by weight: 6 parts of 6% boric acid borax solution by mass and 6 parts of 6% zinc borate solution by mass.

[0136] The preparation method of a mildew-proof flame retardant for wood and bamboo materials in this comparative example is substantially the same as that in comparative example 6, except that no surfactant and initiator are added, and the raw materials in the flame retardant solution are replaced by zinc borate solution and boric acid borax solution from ammonium polyphosphate solution and boric acid solution, comprising the following steps:

[0137] S1. Preparation of raw materials:

[0138] A 6% by mass zinc borate solution was added dropwise to a 6% by mass boric acid borax solution, and then heated to 30°C and stirred at a rotation speed of 500 rpm for 0 min to obtain a flame retardant solution (the mass ratio of zinc borate to boric acid borax in the flame retardant solution was 1:1).

[0139] 1.00 g of isothiazolinone (4,5-dichloro-N-octyl-4-isothiazoline-3-one, DCOIT) and 1.00 g of 1,3-dihydroxymethyl-5,5-dimethylhydantoin were dissolved in 89.97 g of propylene glycol and stirred at 300 rpm for 10 min, then heated to 60° C., and finally 6.00 g of phenolic resin was added thereto, and stirred at 800 rpm for 30 min to obtain a mildew inhibitor solution.

[0140] S2. Mixing raw materials: Mix the flame retardant solution and the mildew-proof agent solution in a mass ratio of 6:1, then add 3.5 mL of acetic acid solution to 100 mL of the mixed solution, heat to 60° C., and stir at a rotation speed of 400 rpm for 15 minutes to obtain a mildew-proof flame retardant for wood and bamboo materials.

[0141] An application of the mildew-proof flame retardant for wood and bamboo materials of this comparative example in mildew-proof treatment of wood and bamboo materials, and the application steps are the same as those of Example 1.

[0142] Basic parameter performance test of mildew-proof flame retardant: The performance of the prepared high temperature resistant water-borne wood and bamboo organic mildew-proof agent in the embodiment was tested from four aspects: appearance, average particle size, centrifugal stability, and storage stability. The average particle size was measured using a DelsaNano C laser particle size analyzer. The centrifugal stability was measured by taking 10g of the high temperature resistant anti-loss mildew-proof flame retardant in Examples 1-4 and each mildew-proof flame retardant in Comparative Examples 1-6, respectively, and putting them into a centrifuge and centrifuging them at a speed of 3000r / min for 30min to observe the stability of the mildew-proof flame retardant. The results are shown in Table 1.

[0143] Table 1 Basic parameters and performance of mildew-proof flame retardants of Examples and Comparative Examples

[0144]

[0145] The results show that the particle sizes of Examples 1-6 and Comparative Examples 1-5 are all between 32nm and 75nm, and the centrifugal stability and storage stability are maintained well. The mildew-proof flame retardant of Comparative Examples 6-7 precipitates after the centrifugal test, and its compatibility is poor.

[0146] Test on the mildew resistance of wood treated with mildew resistance flame retardant: The modified wood of Experimental Examples 1-6 and Comparative Examples 1-5 with mildew resistance flame retardants was placed in a beaker, 300 ml of distilled water was added until the specimen was completely submerged, and then the beaker was placed on a magnetic stirrer for stirring. The distilled water was replaced after 6 h, 24 h, 48 h, 96 h, 144 h, 192 h, 240 h, 288 h, and 336 h of flow, respectively. After 2 weeks of flow, the mildew resistance and flame retardant properties of the wood were tested by a mixed bacteria mildew resistance test designed according to the standard AWPA E24-06. The results are shown in Table 2.

[0147] Table 2 Mildew prevention and control efficacy of each embodiment and comparative example

[0148]

[0149]

[0150] The results show that the effective ingredients of the mildew inhibitor in Comparative Example 1, which does not add polyethylene glycol diglycidyl ether, are lost in large quantities, and the effective ingredients in Comparative Example 2, which adds epoxy resin, are also lost to a certain extent, indicating that the effective ingredients in the mildew inhibitor can no longer provide mildew resistance for wood after loss. The mildew-proof flame retardants of Comparative Examples 3 and 4 retain good mildew resistance after loss. And Examples 3-4 can effectively retain the mildew-proof effective ingredients of the wood samples that have been lost for 14 days, confirming that polyethylene glycol diglycidyl ether can give wood good anti-loss performance.

[0151] Combustion performance test of wood treated with mildew-proof flame retardant: The wood of 50mm×20mm×2mm in size after being modified with mildew-proof flame retardant in Experimental Examples 1-6 and Comparative Examples 1-5 and treated with 14-day run-off was fixed on an iron frame and heated with an alcohol lamp to characterize the macroscopic flame retardant performance of the wood. After the flame was continuously heated until the wood burned, the alcohol lamp was removed and the burning condition of the wood was carefully observed. The results are shown in Table 3.

[0152] Table 3 Combustion performance of wood modified with mildew retardant in various embodiments and comparative examples

[0153]

[0154] The results show that the flame retardant active ingredients of Comparative Examples 1 and 2, which do not add polyethylene glycol diglycidyl ether adhesives, are lost in large quantities, and their burning time and burning area are significantly greater than those of Experimental Examples 1-6, and their ignition time is also significantly less than that of Experimental Examples 1-6. The flame retardant effect of Comparative Examples 3-5 is relatively poor, but their anti-mildew effect after anti-loss is good, indicating that the flame retardant effect of the flame retardant is relatively reduced after the combination of the flame retardant and the mildew inhibitor. Combined with the above results, it is shown that the use of polyethylene glycol diglycidyl ether and triethylenetetramine can effectively improve the anti-loss performance of the mildew-proof flame retardant while maintaining the effectiveness of the mildew-proof flame retardant for wood and bamboo materials, and the anti-loss mildew-proof flame retardant provided by the present invention can achieve a good mildew-proof flame retardant effect on wood and bamboo materials.

[0155] Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Any technician familiar with the art can make many possible changes and modifications to the technical solution of the present invention by using the technical content disclosed above without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment of equivalent changes. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention should fall within the scope of protection of the technical solution of the present invention.

Claims

1. A mildew-proof flame retardant for wood and bamboo materials, characterized in that: The raw materials include a flame retardant solution and a mildew-proofing agent solution in a mass ratio of 5-8:1; The flame retardant solution comprises the following raw material components by weight:

2. The anti-loss mildew flame retardant for wood and bamboo materials according to claim 1, characterized in that: The organic solvent includes one or more of propylene glycol, ethylene glycol phenyl ether, propylene glycol phenyl ether, and dodecyl alcohol ester.

3. The anti-loss mildew flame retardant for wood and bamboo materials according to claim 1, characterized in that: The surfactant includes alkylphenol polyoxyethylene ether.

4. The anti-loss mildew flame retardant for wood and bamboo materials according to claim 1, characterized in that: The initiator includes triethylenetetramine.

5. The anti-loss mildew flame retardant for wood and bamboo materials according to claim 1, characterized in that: Also included are pH adjusters.

6. A method for preparing an anti-loss mildew flame retardant for wood and bamboo materials, characterized in that: The following steps are involved: The flame retardant solution and the mildew-proof agent solution are mixed in a mass ratio of 5-8:1, the pH value is adjusted to a range of 5.5-6.0, and stirred at a temperature of 30°C-50°C and a rotation speed of 300-800 rpm for 10-20 minutes to obtain an anti-loss mildew-proof flame retardant for wood and bamboo materials; The flame retardant solution comprises a mixed solution of boric acid and ammonium polyphosphate, and the mildewcide solution comprises a mixed solution of isothiazolinone organic mildewcide, 1,3-dihydroxymethyl-5,5-dimethylhydantoin, polyethylene glycol diglycidyl ether and an initiator.

7. The method for preparing the anti-loss mildew-proof flame retardant for wood and bamboo materials according to claim 6, characterized in that: The flame retardant solution is prepared by the following steps: adding a boric acid solution dropwise into an ammonium polyphosphate solution, stirring the solution at a temperature of 30° C. to 60° C. and a rotation speed of 500 to 2000 rpm for 5 to 10 minutes to obtain a flame retardant solution.

8. The method for preparing the anti-loss mildew-proof flame retardant for wood and bamboo materials according to claim 6, characterized in that: The mildew-proofing agent solution is prepared by the following steps: dissolving an isothiazolinone organic mildew-proofing agent and 1,3-dihydroxymethyl-5,5-dimethylhydantoin in an organic solvent and stirring the mixture at a rotation speed of 200-2000 rpm for 5-10 minutes, heating the mixture to 50° C.-70° C., adding a surfactant, polyethylene glycol diglycidyl ether and an initiator and stirring the mixture at a rotation speed of 300-1200 rpm for 5-10 minutes to obtain the mildew-proofing agent solution.

9. Use of the anti-loss mildew-proof flame retardant for wood and bamboo materials according to any one of claims 1 to 5 and the anti-loss mildew-proof flame retardant for wood and bamboo materials prepared by the preparation method according to any one of claims 6 to 8 in mildew-proof treatment of wood and bamboo materials.

10. The use according to claim 9, characterized in that: The anti-loss mildew and flame retardant for wood or bamboo is applied on the surface of the wood or bamboo, and dried at a temperature of 60-80° C. so that the polyethylene glycol diglycidyl ether undergoes a cross-linking reaction with the cell wall under the initiation of an initiator.

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