Ether polymer hybrid nanoparticle modifier, method for preparing same, and use thereof

Abstract

The application provides an ether polymer hybrid nanoparticle modifier and a preparation method and application thereof, and belongs to the technical field of wood modification. The method comprises the following steps: mixing an ether polymer with water to obtain a matrix solvent; and mixing the matrix solvent with sol to perform a hybrid reaction to obtain the ether polymer hybrid nanoparticle modifier, wherein the sol is neutral silica sol or silica-alumina sol. In the application, JFC is a penetrating agent used in the field of textiles, has excellent penetrating performance, can well bring the nanoparticles into wood after the hybrid reaction with the nanoparticles in the sol, and the nanoparticles are uniformly distributed, the nanoparticles are well fixed in the wood by the solidification of the ether polymer, the fixing performance is improved, the nanoparticles enter the wood to fill the gaps, and thus the physical and mechanical properties of the wood are improved; meanwhile, the nanoparticles are inorganic substances, and have excellent flame-retardant and corrosion-resistant properties, so that the wood has corresponding flame-retardant and corrosion-resistant properties.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wood modification, and particularly relates to an ether polymer hybrid nanoparticle modifier, a preparation method and application thereof. BACKGROUND

[0002] Wood is a renewable, sustainable, biodegradable and environmentally friendly material, which is widely used in furniture, construction, energy, new materials and other fields. As a natural polymer biomass composite material, fast-growing wood of plantations has become the main timber resource, but when load, water, heat, light, microorganisms and other factors act together, there are problems such as flammability, poor weather resistance, low dimensional stability and the like. It is urgent to seek physical, chemical or biological methods to carry out directional modification at the cellular or molecular level, so as to realize the upgrading and high-value utilization of wood. Chemical modification has been considered as an effective strategy to improve the properties of wood such as rot resistance, flame retardancy, mechanical strength, aging resistance, color and dimensional stability, and has important significance for efficient utilization of fast-growing wood resources of plantations.

[0003] The hierarchical structure, porous structure and macromolecular structure of wood provide opportunities for its modification and processing into structural, functional and multifunctional materials. Chemical modification mainly utilizes the typical porous hierarchical structure of wood, and the modifier enters the interior of wood through the pores to fill or react with wood, so as to realize multi-dimensional reaction and one agent with multiple effects. Organic modification in chemical modification includes acetylation, treatment with nitrogen hydroxymethyl compounds, thermosetting resins, epoxy resins and furfuryl alcohol, and gradually becomes an important direction in the field of functional modification of wood. However, these chemical modification processes often use toxic and irritating-smelling modifiers or solvents, which are slowly released into the environment after modification, causing damage to the environment and human body. Inorganic modification includes modification with silicates and nanoparticles, but there are many problems such as difficult impregnation, easy loss and hygroscopicity of inorganic fillers; at the same time, the modified materials have high brittleness and low toughness, which limits the wide application of the materials. At the same time, there are some common basic problems that seriously restrict the high-quality and efficient utilization of fast-growing wood of plantations, such as poor uniformity of the distribution of the modifier in the treated wood and weak binding force between the modifier and the wood components, which restrict and affect the manufacturing process, production level and target performance of the terminal materials and products.

[0004] Therefore, it is a main research direction in the field to develop a chemical modifier with good impregnation and excellent anchoring performance. SUMMARY

[0005] Therefore, the purpose of the present application is to provide an ether polymer hybrid nanoparticle modifier, a preparation method and application thereof. The prepared modifier is easier to enter wood and has more uniform distribution, and the anchoring performance of the modifier in the treated wood is significantly improved.

[0006] To achieve the above object, the present application provides the following technical solutions.

[0007] The present application provides a preparation method of an ether polymer hybrid nanoparticle modifier, comprising the following steps:

[0008] Mixing the ether polymer with water to obtain a base solvent;

[0009] Mixing the base solvent with a sol to perform a hybrid reaction to obtain the ether polymer hybrid nanoparticle modifier, wherein the sol is a neutral silica sol or a silica-alumina sol.

[0010] Preferably, the mass ratio of the ether polymer to water is 1:2-8.

[0011] Preferably, the solid content of the neutral silica sol is 30±1%.

[0012] Preferably, when the sol is a neutral silica sol, the mass fraction of the neutral silica sol in the system obtained by mixing the base solvent with the sol is 1-9% in terms of solid content.

[0013] Preferably, the mass fraction of the neutral silica sol in the system is 3-7%.

[0014] Preferably, the solid content of the silica-alumina sol is ≥30%.

[0015] Preferably, when the sol is a silica-alumina sol, the mass fraction of the silica-alumina sol in the system obtained by mixing the base solvent with the sol is 3-15% in terms of solid content.

[0016] Preferably, the mass fraction of the silica-alumina sol in the system is 6-12%.

[0017] The present application also provides an ether polymer hybrid nanoparticle modifier prepared by the preparation method.

[0018] The present application also provides an application of the ether polymer hybrid nanoparticle modifier in modifying wood and bamboo.

[0019] The present application provides a preparation method of an ether polymer hybrid nanoparticle modifier, comprising the following steps: mixing the ether polymer with water to obtain a base solvent; mixing the base solvent with a sol to perform a hybrid reaction to obtain the ether polymer hybrid nanoparticle modifier, wherein the sol is a neutral silica sol or a silica-alumina sol.

[0020] The prepared modifier is an organic-inorganic hybrid material, which is a new material between inorganic material and organic material, wherein the ether polymer (JFC) is a penetrating agent used in the textile field, has excellent penetrating performance, and can well bring the nano particles into the wood and uniformly distribute the nano particles after the hybrid reaction with the nano particles in the sol; the curing of the ether polymer well fixes the nano particles in the wood, improves the fixing performance, the nano particles enter the wood to fill the gap, and further improve the physical and mechanical properties of the wood; meanwhile, the nano particles are inorganic substances, and have excellent flame-retardant and corrosion-resistant properties, so that the wood has corresponding flame-retardant and corrosion-resistant properties. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 are the physical pictures of JFC, Si-Al and different modifiers (a) and TEM pictures, wherein (b) is the TEM picture of JFC, (c) is the TEM picture of Si-Al sol, and (d) is the TEM picture of JSA6;

[0022] Figure 2 are the FT-IR spectra of JFC, JSA-6% and Si-Al sol (a), the C1s fitting curve of the spectrum of JSA-6% (b), the XPS spectrum of JSA-6% (c) and the O1s fitting curve corresponding to the XPS spectrum of JSA-6% (d);

[0023] Figure 3 are the XPS spectra of blank control (C), JFC and wood treated by different concentrations of JSA;

[0024] Figure 4 are the TEM pictures of blank control (C), JFC and wood treated by JSA-6% at different magnifications and different positions, wherein (a1) and (a2) are the TEM pictures of wood treated by blank control at different magnifications, (b1) and (b2) are the TEM pictures of wood treated by JFC at different magnifications, and (c1) and (c2) are the TEM pictures of wood treated by JSA-6% at different positions;

[0025] Figure 5 are the flame-retardant performance test curves of the modified wood, wherein (a) is the heat release rate curve, (b) is the THR total heat release amount curve, (c) is the SPR smoke release rate curve, and (d) is the TSP total smoke release amount curve;

[0026] Figure 6 are the anti-leaching performance test curves of the modified wood, wherein (a) is the Si anti-leaching performance curve, and (b) is the Al anti-leaching performance curve;

[0027] Figure 7TEM and SEM images of JFC, neutral silica sol and modified system JZS with mass fraction of 7% of neutral silica sol, wherein (a) is SEM image of JFC, (d) is TEM image of JFC, (b) is SEM image of neutral silica sol, (e) is TEM image of neutral silica sol, (c) is SEM image of modified system with mass fraction of 7% of neutral silica sol, (f) is TEM image of modified system with mass fraction of 7% of neutral silica sol;

[0028] Figure 8 Concentration of JZS hybrid material and bending strength and bending elastic modulus of wood, wood density column chart and water absorption curve, wherein (a) is concentration of JZS hybrid material and bending strength of wood column chart, (b) is concentration of JZS hybrid material and bending elastic modulus of wood column chart, (c) is concentration of JZS hybrid material and wood density column chart, (d) is concentration of JZS hybrid material and water absorption curve of wood;

[0029] Figure 9 Concentration of JZS hybrid material and thermogravimetric curve of wood.

[0030] Figure 10 Concentration of JZS hybrid material and heat release rate (HRR) curve of wood. DETAILED DESCRIPTION

[0031] The application provides a preparation method of an ether polymer hybrid nanoparticle modifier, which comprises the following steps:

[0032] Mixing the ether polymer with water to obtain a base solvent;

[0033] Mixing the base solvent with a sol to perform a hybrid reaction to obtain the ether polymer hybrid nanoparticle modifier, wherein the sol is neutral silica sol (JZS) or silica-alumina sol (JSA).

[0034] In the application, the raw materials used are commercially available goods in the art unless otherwise specified.

[0035] The ether polymer is mixed with water to obtain a base solvent.

[0036] In the application, the mass ratio of the ether polymer to water is preferably 1:2-8, and more preferably 1:4.

[0037] In the application, the temperature of the water is preferably 70-80°C.

[0038] In the application, the mixing mode is preferably stirring, and the application does not have special limitations on the specific mode of stirring, and any mode known to those skilled in the art can be adopted.

[0039] After obtaining the base solvent, the base solvent is mixed with a sol to carry out a hybridization reaction to obtain the ether polymer hybrid nanoparticle modifier, and the sol is a neutral silica sol or a silica-alumina sol.

[0040] In the present application, when the sol is a neutral silica sol, the mass fraction of the neutral silica sol in the system obtained by mixing the base solvent with the sol is preferably 1-9%, more preferably 3-7%, and in the specific embodiments of the present application, it is 1%, 3%, 5%, 7% or 9% respectively.

[0041] In the present application, the solid content of the neutral silica sol is preferably 30±1%.

[0042] In the present application, when the sol is a silica-alumina sol, the mass fraction of the silica-alumina sol in the system obtained by mixing the base solvent with the sol is preferably 3-15%, more preferably 6-12%, and in the specific embodiments of the present application, it is 3%, 6%, 9%, 12% or 15% respectively.

[0043] In the present application, the solid content of the silica-alumina sol is preferably ≥30%.

[0044] In the present application, the temperature of the hybridization reaction is preferably room temperature, i.e. no additional heating or cooling is required, and the time is preferably 0.5-1h.

[0045] In the present application, the hybridization reaction is preferably carried out under stirring, and the present application does not have special limitations on the specific mode of the stirring, which can be carried out in a manner well known to those skilled in the art.

[0046] The present application also provides an ether polymer hybrid nanoparticle modifier prepared by the preparation method described in the above technical solution.

[0047] The present application also provides the use of the ether polymer hybrid nanoparticle modifier described in the above technical solution in the modification of wood and bamboo.

[0048] In the present application, the use preferably comprises the following steps:

[0049] The wood is placed in an impregnation tank, the top end of the wood is pressed by a weight, the ether polymer hybrid nanoparticle modifier is poured, the tank cover is closed and screwed tightly, the pressure is increased to 1.0MPa and maintained for 2h, the pressure is released to normal pressure and maintained for 30min, the pressure is increased to 1.0MPa and maintained for 2h, the pressure is released to normal pressure and maintained for 30min, and the pressure is increased to 1.0MPa and maintained for 2h. The treatment liquid is discharged from the tank, the pressure is released to normal pressure, the tank is opened, the treated wood is taken out, the surface of the treated wood is cleaned with clean water, and the air drying method is used for drying.

[0050] In order to further illustrate the present application, the ether polymer hybrid nanoparticle modifier provided by the present application and the preparation method and application thereof are described in detail below in conjunction with examples, but they cannot be understood as limiting the protection scope of the present application.

[0051] Examples

[0052] Silicon-aluminum sol: model AlS-30, solid content: ≥30%, SiO2: 6%, Al2O3≥16%, density 1.28-1.30 g / cm 3 , Cl - content 7-8%, pH value 2.5-3, particle size 10-20 nm, viscosity (20°C, mPa·S) ≤40, purchased from Dezhou Jinghuo Technology Glass Co., Ltd.

[0053] The ether polymer (JFC) is mixed with hot water at 70°C at a mass ratio of 1:4, and is fully stirred and uniformly mixed as the base solvent of the modification system.

[0054] The ether polymer hybrid neutral silicon sol modification system and the ether polymer hybrid silicon-aluminum sol modification system with different mass fractions of effective components (neutral silicon sol or silicon-aluminum sol) are constructed:

[0055] A certain mass of the base solvent and the neutral silicon sol are weighed so that the mass fraction of the effective component content of the neutral silicon sol is 0%, 1%, 3%, 5%, 7%, and 9% respectively, corresponding to JFC, JZS1, JZS3, JZS5, JZS7, and JZS9, and are placed in a large plastic bucket, and then are stirred for more than 30 min by a stirrer to be fully stirred and uniformly mixed to prepare the ether polymer hybrid neutral silicon sol modification system, which is stored for standby use.

[0056] A certain mass of the base solvent and the silicon-aluminum sol (Si-Al) are weighed so that the mass fraction of the effective component content of the silicon-aluminum sol is 0%, 3%, 6%, 9%, 12%, and 15% respectively, corresponding to JFC, JSA3, JSA6, JSA9, JSA12, and JSA15, and are placed in a large plastic bucket, and then are stirred for more than 30 min by a stirrer to be fully stirred and uniformly mixed to prepare the ether polymer hybrid silicon-aluminum sol modification system, which is stored for standby use. The obtained ether polymer hybrid nanoparticle modifier is still in a uniform and stable state after being stored for 1 year, and no precipitate is observed.

[0057] Figure 1The photographs of JFC, Si-Al and different modifiers (a) and TEM images of (b) JFC, (c) Si-Al sol and (d) JSA6. It can be seen that there are many precipitates in Si-Al sol, and the color is turbid. After hybridization, the precipitates in JSA disappear in the solution, and present a uniform and stable state. When the mass fraction of JSA is 15%, a little precipitate appears in the solution after storage, which indicates that the mass fraction of Si-Al sol should not be too high. The Si-Al sol nanoparticles are closely arranged and the agglomeration phenomenon is obvious without hybridization. After JFC hybridization, the agglomeration phenomenon of Si-Al sol is obviously improved, which indicates that JFC has a strong dispersion effect on Si-Al sol, which is helpful for the nanoparticles to enter the wood smoothly.

[0058] There are three types of pores in wood, i.e. micropores (radius: 58-2 μm), mesopores (500-80 nm) and mesopores (80-1.8 nm), and micropores and mesopores account for the vast majority of wood pores. After JFC hybridization, the Si-Al sol particles are smaller than the wood pores, so it can be explained that JSA can easily enter the wood.

[0059] Figure 2 (a) FT-IR spectra of JFC, JSA-6% and Si-Al sol, (b) C1s fitting curve of the spectrum of JSA-6%, (c) XPS spectrum of JSA-6% and (d) O1s fitting curve corresponding to the XPS spectrum of JSA-6%. For Si-Al sol, JFC and JSA-6%, the characteristic peaks of stretching vibration and bending vibration of hydroxyl appear at 3450 cm -1 and 1650 cm -1 . The peaks near 948 cm -1 correspond to the symmetric stretching vibration structure of Si-O-Al. The peaks at 603-605 cm -1 and 459-460 cm -1 are related to the single bond vibration of Si-O and Al-O, respectively. However, this structure is not detected in JSA, which indicates that Si-Al sol completely participates in the hybridization reaction of JSA. The absorption peak intensity near 3450 cm -1 and 1650 cm -1 of JSA spectrum is weakened, which may be due to the dehydration condensation to form Si-O-C or Al-O-C bond in the hybridization reaction of JFC and Si-Al sol. The energy spectrum peaks of Al2p, Si2p, C1s and O1s appear at 74.8 eV, 99.4 eV, 286.30 eV and 533.01 eV, respectively. The appearance of Si2p, C1s and O1s peaks indicates that the JFC hybrid Si-Al sol modification system is composed of Al, Si, C and O elements, which confirms that Si-Al sol can hybridize with JFC. Figure 2Figure 6 shows the C1s fitting curve corresponding to the XPS spectrum of the hybrid material. After fitting, two peaks were obtained at 286.63 eV and 285.18 eV, corresponding to two different types of carbon atoms (C1 and C2) in the molecular chain. Figure 2 Figure 7 shows the O1s fitting curve corresponding to the XPS spectrum of the hybrid material. After fitting, a peak was obtained at 533.01 eV, corresponding to the O2 oxygen atoms in the molecular chain. The appearance of the C2 peak and the O2 peak confirms the introduction of silicon or aluminum components into the JFC molecular backbone through Si-O-C or Al-O-C bonds, which is consistent with the FT-IR analysis results.

[0060] Figure 3 The XPS spectra of the blank control (C), JFC, and JSA-treated wood at different concentrations show that no silicon or aluminum was detected in the blank control and JFC-treated samples. The samples impregnated with JSA contained a certain amount of silicon, confirming that the silica-alumina sol had entered the wood. When the JSA concentration was 6%, the peak intensity near 102.5 eV and 73.39 eV reached the highest, indicating that the ether polymer hybrid silica-alumina sol at this concentration was more easily entered into the wood than at other concentrations.

[0061] Figure 4 The TEM images of the blank control (C), JFC, and JSA-6% treated wood at different magnifications and locations show that the wood treated with JFC was similar to the blank control, and there was no filler in the pore structures such as the wood's channels and cell cavities. Under the action of external pressure, the JSA hybrid material entered the gaps and solidified along the wood's vessels and fibers. When the pores in the wood were filled with the ether polymer hybrid silica-alumina sol modifier, the cross-sectional structure obtained is shown in Figure 8(c1). The inter-fiber gaps and vessels of the wood were filled, and the filled solidification products were dense and full, close to the wood's cell walls. The longitudinal cross-sectional observation as shown in Figure 8(c2) indicates that the silicon / aluminum precipitates polymerized on the inner walls of the wood fibers. This indicates that the JSA hybrid material can enter the interior of the wood cell wall through small channels such as pits. These hybrid materials exist in the wood in two ways, with some precipitating between the cell cavities and the cell wall gaps, which increases the density of the wood and helps to enhance the physical and mechanical properties of the matrix material. Another part forms chemical bonds with the wood and is bound together through hydrogen bonds and covalent bonds. Figure 4 Figure 4

[0062] JSA-modified wood:

[0063] ​​The wood is placed into the impregnation tank, the top end of the wood is pressed by a weight, the treatment liquid is poured, the impregnation tank cover is covered, the screw is tightened, the pressure is added to 1.0 MPa, and the pressure is kept for 2 hours; the pressure is released to the normal pressure, and the pressure is kept for 30 minutes; the pressure is added to 1.0 MPa, and the pressure is kept for 2 hours; the pressure is released to the normal pressure, and the pressure is kept for 30 minutes; the pressure is added to 1.0 MPa, and the pressure is kept for 2 hours. The modifier is discharged from the treatment tank, the pressure is released to the normal pressure, the treatment tank is opened, the wood is taken out, the surface of the wood is cleaned by using clean water, and the wood is dried by using the air drying method. The modified wood obtained is respectively denoted as JFC-W, JSA3-W, JSA6-W, JSA9-W, JSA12-W and JSA15-W.

[0064] Table 1 is the mechanical property test result of the modified wood prepared, and Table 2 is the corrosion resistance test result of the modified wood prepared, wherein C represents the wood sample without any treatment. It can be known that the modified wood prepared has good mechanical properties and certain corrosion resistance.

[0065] Table 1 is the mechanical property test result of the modified wood prepared, and Table 2 is the corrosion resistance test result of the modified wood prepared, wherein C represents the wood sample without any treatment. It can be known that the modified wood prepared has good mechanical properties and certain corrosion resistance.

[0066]

[0067] Table 2 is the corrosion resistance test result of the JSA modified wood prepared.

[0068]

[0069] The flame retardant property of the modified wood is tested, and the result is shown in Figure 5 . Figure 5 In (a), the curve is a heat release rate curve, (b) is a THR total heat release amount curve, (c) is a SPR smoke release rate curve, and (d) is a TSP total smoke release amount curve. It is shown that the modifier of the application can improve the flame retardant property of the wood.

[0070] The anti-leaching property of the modified wood is tested, and the result is shown in Figure 6 . Figure 6 In (a), the curve is a Si anti-leaching property curve, and (b) is an Al anti-leaching property curve. It is shown that the modifier of the application can improve the anti-leaching property of the wood.

[0071] The JZS modified wood is:

[0072] The wood was placed in the impregnation tank, the top end of the wood was pressed by a weight, the treatment liquid was poured, the impregnation tank cover was covered, the screw was tightened, the pressure was added to 1.0 MPa, and was kept for 2 h; the pressure was released to normal pressure, and was kept for 30 min; the pressure was added to 1.0 MPa, and was kept for 2 h; the pressure was released to normal pressure, and was kept for 30 min; the pressure was added to 1.0 MPa, and was kept for 2 h. The modifier was discharged from the treatment tank, the pressure was released to normal pressure, the treatment tank was opened, the wood was taken out, the surface of the wood was cleaned with clean water, and the wood was dried in air to obtain modified wood, which was respectively marked as JFC-W, JZS1-W, JZS3-W, JZS5-W, JZS7-W and JZS9-W.

[0073] Figure 7 The TEM and SEM images of JFC, neutral silica sol and the modified system JZS with a mass fraction of 7% of neutral silica sol, wherein (a) is the SEM image of JFC, (d) is the TEM image of JFC, (b) is the SEM image of neutral silica sol, (e) is the TEM image of neutral silica sol, (c) is the SEM image of the modified system with a mass fraction of 7% of neutral silica sol, and (f) is the TEM image of the modified system with a mass fraction of 7% of neutral silica sol. It can be seen from the SEM observation result that the structure of JZS obtained by using the blending method is similar to the structure of the original silica sol solution, and the strong similarity between the two materials proves that the fatty alcohol polyoxyethylene ether (JFC) has little effect on the macrostructure of the sol. However, the TEM observation shows that the silica sol nanoparticles are closely arranged and the agglomeration phenomenon is obvious. After being dispersed by JFC, the agglomeration phenomenon of the silica sol is obviously improved, which indicates that JFC has a strong dispersion effect on the silica sol, which helps the nanoparticles to enter the wood smoothly. There are three types of pores in the wood, namely micropores, mesopores and mesopores, and micropores and mesopores account for the vast majority of wood pores. After being dispersed by JFC, the silica sol particles are smaller than its pores, so it can be explained that JZS can easily enter the wood.

[0074] Figure 8Fig. 4 is a diagram of the bending strength and modulus of elasticity of wood versus the concentration of JZS hybrid material, Fig. 4(a) is a diagram of the bending strength of wood versus the concentration of JZS hybrid material, Fig. 4(b) is a diagram of the bending modulus of elasticity of wood versus the concentration of JZS hybrid material, Fig. 4(c) is a diagram of the density of wood versus the concentration of JZS hybrid material, and Fig. 4(d) is a curve of the water absorption of wood versus the concentration of JZS hybrid material; when wood is treated only with JFC, the strength and modulus of elasticity change little. When the mass concentration of JZS hybrid material increases from 1% to 9%, the strength and modulus are improved significantly. The bending strength and modulus of elasticity of wood treated with 7% JZS hybrid material reach 98.5 MPa and 13.2 GPa, respectively, which are 79.7% and 89.5% higher than those of the control material, respectively. The reason for this increase is that the inorganic components enter the cell wall of wood and participate in the physical filling and chemical bonding of the cell wall material. The consequent increase in the strength and stiffness of the cell wall corresponds to an increase in the density of wood. The compressive strength of wood treated with JFC along the grain changes little. However, 7% concentration of JZS hybrid material produces the highest compressive strength, which is 105.1% higher than that of untreated wood, and the water absorption of wood also reaches the lowest.

[0075] Figure 9 Fig. 5 is a curve of the thermal weight of wood versus the concentration of JZS hybrid material, Figure 10 Fig. 6 is a curve of the heat release rate (HRR) of wood versus the concentration of JZS hybrid material, and Table 3 is the test results of the corrosion resistance of the prepared modified wood. It can be seen that the prepared modified wood has good mechanical properties and certain corrosion resistance.

[0076] Table 3 is the test results of the corrosion resistance of the prepared JZS modified wood

[0077]

[0078] The present application studies the physical and mechanical properties of wood treated with different mass fractions of modifiers, and optimizes the most hybrid proportion of the material according to the results, wherein the mass fraction of neutral silicon sol is 7%, and the mass fraction of silicon-aluminum sol is 6%.

[0079] The above description is only preferred embodiments of the present application, and does not limit the present application in any form. It should be noted that, for ordinary skilled persons in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, which should also be considered as the protection scope of the present application.

Claims

1. A method for preparing an ether-based polymeric hybrid nanoparticle modifier, characterized by, The method comprises the following steps: mixing the ether polymer with water to obtain a matrix solvent; mixing the matrix solvent with a sol to carry out a hybridization reaction to obtain the ether polymer hybrid nanoparticle modifier, the sol being a silica-alumina sol, and the mass fraction of the silica-alumina sol in the system obtained by mixing the matrix solvent with the sol being 6% in terms of solid content.

2. The production method according to claim 1, characterized by, The mass ratio of the ether polymer to water is 1:2-8.

3. The preparation method according to claim 1, characterized in that, The solid content of the silica-alumina sol is ≥30%.

4. The ether polymer hybrid nanoparticle modifier prepared by the method of any one of claims 1-3.

5. The ether polymer hybrid nanoparticle modifier of claim 4 in the application of modifying wood and bamboo.

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