CN114085628B - Composite filling material and application thereof - Google Patents
Composite filling material and application thereof Download PDFInfo
- Publication number
- CN114085628B CN114085628B CN202111398437.1A CN202111398437A CN114085628B CN 114085628 B CN114085628 B CN 114085628B CN 202111398437 A CN202111398437 A CN 202111398437A CN 114085628 B CN114085628 B CN 114085628B
- Authority
- CN
- China
- Prior art keywords
- filling material
- plywood
- composite filling
- composite
- content
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27D—WORKING VENEER OR PLYWOOD
- B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
- B27D1/04—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring to produce plywood or articles made therefrom; Plywood sheets
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/005—Additives being defined by their particle size in general
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/346—Clay
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
- C08K5/098—Metal salts of carboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/26—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment
- C08L23/30—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment by oxidation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- C08L33/24—Homopolymers or copolymers of amides or imides
- C08L33/26—Homopolymers or copolymers of acrylamide or methacrylamide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L99/00—Compositions of natural macromolecular compounds or of derivatives thereof not provided for in groups C08L89/00 - C08L97/00
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Inorganic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
The invention provides a composite filling material and application thereof, wherein the composite filling material is prepared by mixing sodium bentonite containing montmorillonite with specific content, powdery quartz, polyacrylamide, polyoxyethylene and other organic matters in a specific proportion. The composite filling material has swelling property and is easy to disperse, rheological property and thixotropy required by mixed glue solution can be met, water resistance, ageing resistance and mildew resistance can be guaranteed or even improved, the formaldehyde residual quantity of the plywood is reduced, and the strength of the plywood is guaranteed. The composite filling material is applied to the plywood, can replace partial flour, and saves grain resources.
Description
Technical Field
The invention relates to the field of filling materials, in particular to a composite filling material and application thereof.
Background
The plywood is a three-layer or multi-layer plate material formed by rotary cutting wood sections into single boards or slicing wood blocks into thin wood and then gluing the single boards by using an adhesive, and is usually formed by gluing odd-number layers of single boards and mutually vertical fiber directions of the single boards of adjacent layers.
At present, the wood plywood industry generally adopts the filling agent which is mainly industrial flour, but the industrial flour is mainly prepared from grain crops such as wheat, soybean and the like, the demand on grain resources is large, and the cost is relatively high.
Disclosure of Invention
Based on the above, there is a need for a composite filling material, a preparation method and an application thereof, which can promote the reduction of the use amount of industrial flour, save grain resources, reduce cost, and ensure and even improve the key performance index of the plywood in the production process of the plywood.
The invention adopts the following technical scheme:
the invention provides a composite filling material, which mainly comprises the following components in percentage by weight: 60% -65% of industrial flour, 30% -35% of sodium bentonite, 1% -5% (preferably 1.5% -4.0%) of powdery quartz, 1% -5% (preferably 1% -3%) of polyacrylamide, and 0.5-3.5 thousandths (preferably 1% -3%) of oxidized polyethylene; wherein the content of montmorillonite in the sodium bentonite is not less than 20%.
In some embodiments, the composite filling material further comprises sodium benzoate, and the content of the sodium benzoate is not higher than 1% o.
In some of these embodiments, the particle size of the sodium bentonite is no greater than 400 mesh; the grain size of the powdery quartz is not more than 3000 meshes.
In some embodiments, the content of 25nm layered particles in the sodium bentonite is not less than 15%, and the content of 100nm particles in the powdered quartz is not less than 30%.
In some of these embodiments, the polyacrylamide has a molecular weight of 1600 to 2000 ten thousand.
In some of these embodiments, the oxidized polyethylene has a molecular weight of 400 to 600 ten thousand.
The physical and chemical performance parameters of the composite filling material are as follows: the water content is less than 10 percent, and the real density is 1.6 to 1.8 tons/m 3 And the saturated water absorption rate is 35 percent.
The invention also provides the application of the composite filling material in the production of plywood.
The invention provides a plywood prepared from any one of the composite filling material, urea-formaldehyde glue and a wood board material. The dosage ratio of the composite filling material to the urea-formaldehyde glue is 1 (2.5-3.6).
The technical principle and the beneficial effects of the invention are as follows:
the composite filling material realizes effective adsorption of residual formaldehyde in a finished product by utilizing the nanoparticle effect in the composite inorganic material and the characteristic of reticular dispersion in water, and adjusts the rheological property and thixotropic property required by the mixed glue solution in application by applying the composite thickening property and the rheological property of two organic matters. The composite filling material is applied to the plywood, can replace partial flour, saves grain resources, can ensure the standard requirements of the plywood such as strength and the like, and can reduce the production cost to a certain extent.
Drawings
Temporarily do not have
Detailed Description
The present invention is further described in detail below with reference to specific examples so that those skilled in the art can more clearly understand the present invention.
The following examples are provided only for illustrating the present invention, and are not intended to limit the scope of the present invention. All other embodiments obtained by a person skilled in the art based on the specific embodiments of the present invention without any inventive step are within the scope of the present invention.
In the examples of the present invention, all the raw material components are commercially available products well known to those skilled in the art unless otherwise specified; in the examples of the present invention, unless otherwise specified, all the technical means used are conventional means well known to those skilled in the art.
The experimental sources of the materials used in the examples and their physicochemical properties:
industrial flour: wudeli No. two industrial universal powder with the density of 0.55g/cm 3 White powder to light brown powder with 100 meshes, less than or equal to 14.5 percent of water, 1.41 to 1.6 percent of ash and more than or equal to 28 percent of flour essence.
Sodium bentonite: light yellow powdery body, whiteness is 40-50, fineness is 400 meshes, blue absorption is 40-50 mmoL/100g, colloid value is more than or equal to 340mL/15g, swelling capacity is 7-9 mL/g,25nm layered particle content is 15-20%, and montmorillonite content is not less than 20%.
Powdery quartz: ziguo superfine powder quartz ore with 100nm particle content not lower than 30%, silvery white, loose powder, whiteness 60, saturated water absorption rate 30%, siO 2 The content is 98 percent.
Polyacrylamide: shandong chat Zhengyang chemical Co., ltd, melting point: >300 ℃, density: 1.18g/ml, flash point: 230 ℃ F. > 2000 ten thousand molecular weight. The effective PH range is 7-14, and the electrolyte is characterized by high polymer electrolyte in neutral and alkaline media.
Oxidized polyethylene: white powder particles, manufactured by Dow chemical company, USA, have a softening point of 65-67 degrees, a melting point of 87-140 ℃, a molecular weight of 600 ten thousand, a true density of 0.93g/mL (25 ℃), a density of 1.15-1.22 g/mL, and a neutral pH value of an aqueous solution.
Example 1
The embodiment provides a composite filling material, and a preparation method thereof comprises the following steps: respectively weighing 600kg of industrial flour, 350kg of sodium bentonite, 28.7kg of powdery quartz, 20kg of polyacrylamide, 1kg of oxidized polyethylene and 0.3kg of sodium phenylpropionate, pouring the raw materials into a ribbon mixer, stirring at the speed of 60r/min for reaction for 10min, and uniformly mixing to obtain the finished product.
Example 2
The embodiment provides a composite filling material, and a preparation method thereof comprises the following steps: respectively weighing 650kg of industrial flour, 300kg of sodium bentonite, 18.7kg of powdery quartz, 30kg of polyacrylamide (molecular weight), 1kg of oxidized polyethylene and 0.3kg of sodium phenylpropionate, pouring the raw materials into a ribbon mixer, stirring at the speed of 60r/min for reaction for 10min, and uniformly mixing to obtain the finished product.
Example 3
The embodiment provides a composite filling material, and a preparation method thereof comprises the following steps: respectively weighing 615kg of industrial flour, 331kg of sodium bentonite, 31.7kg of powdery quartz, 20kg of polyacrylamide, 2kg of oxidized polyethylene and 0.3kg of sodium phenylpropionate, pouring the raw materials into a ribbon mixer, stirring at the speed of 60r/min for reaction for 10min, and uniformly mixing to obtain the finished product.
Example 4
The embodiment provides a composite filling material, and a preparation method thereof comprises the following steps: 635kg of industrial flour, 320kg of sodium bentonite, 22.7kg of powdery quartz, 20kg of polyacrylamide, 2kg of oxidized polyethylene and 0.3kg of sodium phenylpropionate are respectively weighed, the raw materials are poured into a ribbon mixer to be stirred and reacted for 10min at the speed of 60r/min, and the mixture is uniformly mixed, so that the feed additive is obtained.
Example 5
The embodiment provides a composite filling material, and a preparation method thereof comprises the following steps: respectively weighing 625kg of industrial flour, 325kg of sodium bentonite, 36.7kg of powdery quartz, 10kg of polyacrylamide, 3kg of oxidized polyethylene and 0.3kg of sodium phenylpropionate, pouring the raw materials into a ribbon mixer, stirring at the speed of 60r/min for reaction for 10min, and uniformly mixing to obtain the finished product.
Comparative example 1
This comparative example provides a composite filler material prepared substantially the same as example 1, except that: 500kg of industrial flour and 450kg of sodium bentonite.
Comparative example 2
This comparative example provides a composite packing material prepared substantially the same as example 1, except that: 378.7kg of sodium bentonite without powdered quartz (equivalent amount of sodium bentonite was used instead).
Comparative example 3
This comparative example provides a composite filler material prepared substantially the same as example 1, except that: the dosage of the oxidized polyethylene is 3kg without polyacrylamide, and the content of the powdery quartz is 46.7kg.
Comparative example 4
This comparative example provides a composite packing material prepared substantially the same as example 1, except that: the dosage of the polyacrylamide is 30kg without oxidized polyethylene, and the content of the powdery quartz is 19.7kg.
Performance testing
The composite filling materials of examples 1 to 5 and comparative examples 1 to 4 were tested for their physicochemical properties and application (in a weight ratio of industrial flour/composite filling to urea-formaldehyde glue of 1.
(1) Swelling property: the swellability refers to a phenomenon that a high molecular polymer expands in volume in a solvent. The swelling phenomenon, expressed as the swelling ratio, also occurs after the industrial flour and the urea-formaldehyde glue are mixed. For the plywood industry, the volume swelling ratio of the mixed glue solution is high, which is beneficial to improving the board yield and reducing the gluing cost. The test method comprises the following steps: according to the technical flour/composite filling material: the weight ratio of urea-formaldehyde glue =1:3.5 is stirred in a stirrer for 30 minutes (the stirrer rotates at 120 rpm) to be mixed glue solution, the mixed glue solution is poured into a sedimentation measuring cylinder with scales under the constant temperature condition of 20 ℃, the scale change of the liquid level of the mixed glue solution is measured after the mixed glue solution is placed for 30 minutes, and the volume swelling ratio of the mixed glue solution along with the change of the time is calculated.
(2) pH value: the pH value of the mixed glue solution can be directly measured by adopting a PHS-3 type instrument, and the pH value of the mixed glue solution in the proportion is measured at the temperature of 20 ℃.
(3) Viscosity: the viscosity of the mixed dope was measured with a rotary viscometer. The specific determination method is carried out according to viscosity determination method of wood adhesive and resin thereof (GB/T14074.3-93), and the viscosity determination is carried out on the mixed glue solution with the proportion at the temperature of 20 ℃.
(4) Rheological property: the mixed glue solution has to have good fluidity to be continuously supplied to the glue spreader for gluing the board skin. The fluidity and the viscosity of the mixed glue solution can be effectively judged by adopting an SN-LND No. 4 gluing cup to measure the outflow quantity of the mixed glue solution in a fixed time. The test method comprises the following steps: according to the industrial flour/composite filling material: the weight ratio of urea-formaldehyde glue =1, 3.5, stirred in the stirrer for 30 minutes to prepare a mixed glue solution, and poured into a No. 4 paint cup at 20 ℃ to measure the outflow rate in 5 minutes.
The statistical results are shown in table 1 below:
TABLE 1 statistical table for physicochemical property tests
Rotary cutting poplar wood chips, gluing by a nine-layer board gluing machine, measuring the average gluing amount of the nine-layer boards by 660-800 g/square meter, and obtaining the plywood, wherein the moisture of the veneer is less than 16 percent. The cold pressing and shaping time of various samples is 10-30 min, the hot pressing and shaping time is 15-25 min, and the hot pressing temperature is 120 ℃.
The bond strength and the residual formaldehyde content were measured according to the requirements of GB9846-2015, and the wood failure rate was determined according to the method of GB/T17657-1999.
And (3) anti-aging test: the intensity retention rate of the sample plate after being irradiated for 120 hours by an ultraviolet irradiation lamp reaches more than 97 percent.
The statistical results are shown in table 2 below:
table 2 application test of plywood
Remarking: the adhesive strength and formaldehyde residual amount of examples 1 to 5 satisfy the national standards I and II.
In addition, it is worth stating that the team of the inventors found through a great deal of research: when the composite filling material contains 60-65% of industrial flour, 30-35% of sodium bentonite, 1-5% (preferably 1.5-4%) of powdery quartz, 1-5% (preferably 1-3%) of polyacrylamide, 0.5-3.5% of oxidized polyethylene and a proper amount of sodium benzoate, the composite filling material has excellent swelling property and easy dispersion in mixed glue solution prepared by compounding urea-formaldehyde glue, can meet rheological property and thixotropy required by adjusting the mixed glue solution, can ensure and even improve the water resistance, ageing resistance and mildew resistance of the prepared plywood, and can reduce the residual formaldehyde content in the plywood. The effect of various initial additions was analyzed as follows:
(1) The content of montmorillonite with the preferable fineness of less than or equal to 400 meshes is not less than 20 percent, the content of 25nm layered particles is not less than 15 percent, the pH value is not higher than 8.5, and the construction performance and the bonding strength of the product can be ensured. Excessive addition of sodium bentonite can lead to prolonged drying time of mixed glue solution, prolonged cold-pressing and shaping time of plywood, which is not beneficial to adopting the prior art, and excessive addition of sodium bentonite can lead to increased cost of the composite material.
(2) The preferred fineness of the powdery quartz is 3000 meshes, the content of less than 100nm in dispersed particles is not less than 30%, and the pH value is 6.5-7, so that the proper fluidity of the product can be ensured, and the corresponding toughening effect can be obtained. Excessive addition of the powdery quartz can increase the fluidity of the mixed glue solution, reduce the gluing thickness and influence the bonding strength of the plywood; too little addition not only leads to an increase in the cost of the composite material, but also reduces the toughness of the plywood after hot-pressing.
The particle size is controlled to synchronously ensure that the powder is fine and smooth and has proper rheological property, residual formaldehyde is absorbed by utilizing the characteristics (huge specific surface area) of the nano material in the inorganic material, the bonding strength required by the material is improved, and the toughening is enhanced.
(3) The molecular weight of polyacrylamide is required to be 1600-2000 ten thousand, and the polyacrylamide mainly plays roles of thickening and viscosity regulation in mixed glue solution. Excessive addition of polyacrylamide can cause overlarge viscosity of mixed glue solution, poor fluidity, too thick coating, reduced plate yield and increased cost; too little addition can cause the viscosity of the mixed glue solution to be too small, the fluidity to be increased, the coating to be thinned, the glue application amount to be insufficient, the bonding strength of the plywood to be affected, and the quality problems of glue opening of finished products and the like to be caused.
(4) The molecular weight of the oxidized polyethylene is 400-600 ten thousand, and the oxidized polyethylene mainly plays roles of thickening, flow property regulation and water retention in the mixed glue solution, can stabilize various physical properties of the mixed glue solution, and can effectively ensure the storage time and stable glue application rheological property of the mixed glue solution. Excessive addition of oxidized polyethylene can cause the viscosity of a mixed glue solution system to be reduced, the fluidity to be increased, and the thickness of the coating can not meet the process requirements; the small addition of the additive can cause the reduction of the fluidity of a system due to the increase of the swelling ratio, and the instability of the viscosity of the mixed glue solution, thereby influencing the cold-pressing setting time and the final strength of a finished plate.
(5) The sodium benzoate is a white crystal powder, is easy to dissolve in water, is stable in the air, has a pH value of 8 in an aqueous solution, is a wide corrosion inhibitor, has strong bacteriostatic action, and mainly plays a role in resisting mildew and moth in a mixed glue solution.
The invention has the advantages of screening the composite filling powder with specific composition: (1) the product has swelling property as wheat flour, forms a net-shaped viscous structure when meeting water, has good compatibility with urea-formaldehyde glue and is easy to disperse. (2) The cost is reduced by about 20 percent compared with the flour because the cheap materials are adopted, so the wheat flour has price advantage. (3) The thickening performance and viscosity are stronger than those of single flour, the rheological property and thixotropy of the flour are adjustable, the adhesive carrying amount is large, the gluing is easy, and the flour is suitable for producing various veneers. (4) The requirements of various plywood on the cold pressing and setting time are met, and the existing process conditions are not changed. The plywood after hot press molding has obviously improved bonding strength, flexibility, water resistance, ageing resistance, mildew resistance, formaldehyde residual quantity and other properties. (5) Replaces partial wheat flour and saves grains.
It should be noted that the above examples are only for further illustration and description of the technical solution of the present invention, and are not intended to further limit the technical solution of the present invention, and the method of the present invention is only a preferred embodiment and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The composite filling material is characterized by being prepared from the following components in percentage by weight:
sodium benzoate, wherein the content of the sodium benzoate is not higher than 1 per thousand;
wherein the molecular weight of the polyacrylamide is 1600-2000 ten thousand, the molecular weight of the oxidized polyethylene is 400-600 ten thousand, and the content of the montmorillonite in the sodium bentonite is not lower than 20%.
2. The composite filler material of claim 1, wherein the particle size of the sodium bentonite is no greater than 400 mesh;
the grain size of the powdery quartz is not more than 3000 meshes.
3. The composite filling material as claimed in claim 1, wherein the content of 25nm layered particles in the sodium bentonite is not less than 15%, and the content of 100nm particles in the powdered quartz is not less than 30%.
4. The composite filler material according to any one of claims 1 to 3, characterized in that the physico-chemical performance parameters are: the water content is less than 10 percent, and the real density is 1.6 to 1.80 tons/m 3 。
5. Use of the composite filler material of any of claims 1 to 3 for the production of plywood.
6. A plywood produced using the composite filler material according to any one of claims 1 to 3, urea-formaldehyde glue and a wood board material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111398437.1A CN114085628B (en) | 2021-11-19 | 2021-11-19 | Composite filling material and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111398437.1A CN114085628B (en) | 2021-11-19 | 2021-11-19 | Composite filling material and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114085628A CN114085628A (en) | 2022-02-25 |
| CN114085628B true CN114085628B (en) | 2023-01-24 |
Family
ID=80303699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111398437.1A Active CN114085628B (en) | 2021-11-19 | 2021-11-19 | Composite filling material and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114085628B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102382596A (en) * | 2011-08-25 | 2012-03-21 | 李树青 | Filling powder used for plywood |
| CN103205218B (en) * | 2013-05-02 | 2015-06-17 | 张贵清 | Special filler for plywood glue |
| CN108329889A (en) * | 2018-04-13 | 2018-07-27 | 杨奠基 | A kind of Formaldehyde Free Wood-based Panel adhesive and preparation method thereof |
| CN109913146A (en) * | 2019-03-27 | 2019-06-21 | 施大海 | A kind of increasing stick material of glued board substitution flour |
| CN110373130A (en) * | 2019-08-14 | 2019-10-25 | 湘潭海泡石科技有限公司 | A kind of plate adhesive environment-friendly filler and its application method |
-
2021
- 2021-11-19 CN CN202111398437.1A patent/CN114085628B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN114085628A (en) | 2022-02-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Kawalerczyk et al. | Properties of plywood produced with urea-formaldehyde adhesive modified with nanocellulose and microcellulose | |
| CN103108933A (en) | Soy adhesives and composites made from the adhesives | |
| CN1186419C (en) | Multifunctional carpentery stuffing and its compounding process | |
| CN111393054B (en) | Low-alkali-excitation water-resistant geopolymer material, preparation method thereof and application thereof in building decorative plate | |
| RU2291051C1 (en) | Composition for plates made from rice shell | |
| CN104762047A (en) | Production method of moisture-proof modified urea resin adhesive | |
| Liu et al. | Utilization of carbon black from Mao bamboo as reinforcing agent for melamine urea formaldehyde resin wood adhesive | |
| CN114085628B (en) | Composite filling material and application thereof | |
| CN111548756B (en) | Preparation method of calcium carbonate composite filler for epoxy resin adhesive | |
| Bacigalupe et al. | Greener adhesives based on UF/soy protein reinforced with montmorillonite clay for wood particleboard | |
| CN109504130B (en) | Preparation of nano calcium carbonate for silane-terminated polyurethane sealant | |
| Li et al. | Effect of sepiolite filler in malamine-urea-formaldehyde resin on the properties of three-ply plywood | |
| CN102504736A (en) | Phenolic resin composite filling agent for solid-wood composite floor and phenolic resin adhesive comprising same | |
| CN101704920B (en) | Dispersing agent for grinding calcium carbonate, and preparation method and application thereof | |
| CN101586014A (en) | Composite foaming agent for urea-formaldehyde resin, preparing method and application thereof | |
| US2552597A (en) | Process of making a molded article from lignocellulose | |
| CN107572965A (en) | A kind of fire-proof board and preparation method thereof | |
| CN1478842A (en) | Special multifunction filler for wood production and its blending process | |
| JPS60246248A (en) | Manufacture of excelsior cement board | |
| CN118496637B (en) | Thermoplastic starch/PBAT biodegradable composite material and preparation method thereof | |
| CN116875276B (en) | Low-cost soybean-based adhesive modified by synergistic effect and preparation method thereof | |
| CN115491175B (en) | Flame-retardant waterproof soybean-based adhesive and preparation method and application thereof | |
| EP4192908B1 (en) | Adhesive composition for making wood laminates, wood laminates and processes for the preparation thereof | |
| Tichi et al. | Using Wollastonite Nanomaterials in Gypsum-Wood Composites. | |
| RU2495897C2 (en) | Adhesive for making chaff board |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |