CN115181499B - Waterproof high-cementing-performance flame-retardant magnesium oxychloride inorganic adhesive and preparation method and application thereof - Google Patents
Waterproof high-cementing-performance flame-retardant magnesium oxychloride inorganic adhesive and preparation method and application thereof Download PDFInfo
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- CN115181499B CN115181499B CN202210887826.9A CN202210887826A CN115181499B CN 115181499 B CN115181499 B CN 115181499B CN 202210887826 A CN202210887826 A CN 202210887826A CN 115181499 B CN115181499 B CN 115181499B
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- 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
- C09J1/00—Adhesives based on inorganic constituents
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- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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Abstract
The invention belongs to the technical field of inorganic adhesives, and particularly relates to a waterproof, high-cementing-performance and flame-retardant magnesium oxychloride inorganic adhesive, and a preparation method and application thereof. The magnesium oxychloride inorganic adhesive provided by the invention comprises light-burned heavy magnesium oxide, magnesium chloride hexahydrate, water and a modifier; the modifier comprises polyacrylamide, sodium polyacrylate and pectin; the mass ratio of the polyacrylamide to the pectin to the sodium polyacrylate is 1: (3.5-10): (4.5-14). According to the invention, by adding the specific modifier, the water resistance of the magnesium oxychloride inorganic adhesive is improved, the cementing property and the prepressing property of the magnesium oxychloride inorganic adhesive are improved, and the problem of indoor air pollution caused by a common 'trialdehyde' adhesive plywood is thoroughly solved. Meanwhile, the obtained modified magnesium oxychloride inorganic adhesive can enable the plywood prepared by the adhesive to have excellent flame retardant property.
Description
Technical Field
The invention belongs to the technical field of inorganic adhesives, and particularly relates to a waterproof, high-cementing-performance and flame-retardant magnesium oxychloride inorganic adhesive, and a preparation method and application thereof.
Background
At present, formaldehyde adhesives such as Urea Formaldehyde (UF), phenol Formaldehyde (PF), melamine Urea Formaldehyde (MUF) and the like are mainly used as adhesives in the artificial board industry, so that formaldehyde is released from the artificial board and products (furniture, floors and the like) thereof, and the environment and the human health are potentially damaged, and therefore, the development of green adhesives becomes a main concern for sustainable development of the wood industry. Meanwhile, the development of environment-friendly adhesives is a problem to be solved in the wood industry in the face of non-renewable petroleum resources.
The magnesium oxychloride cement is a gas hardening inorganic adhesive, which is prepared by simply mixing light burned magnesium oxide and magnesium chloride solution, and the main hydration product is 3Mg (OH) 2 ·MgCl 2 ·8H 2 O (3 phase), 5Mg (OH) 2 ·MgCl 2 ·8H 2 O (5 phase), mg (OH) 2 And MgO. Because of the excellent properties of high early strength, excellent heat insulation and fire resistance, wear resistance and the like, the modified polyurethane foam is used for preparing materials such as environment-friendly fireproof heat-insulating products, urban garbage/cement composite floor tiles, light boards and the like.
In addition, the magnesium oxychloride cement inorganic adhesive has rich sources of raw materials, has good adhesive strength to different matrixes, can solve the problems of formaldehyde release and poor flame retardance of the artificial board, and is beneficial to ensuring the safety of human living environment.
The traditional magnesium oxychloride inorganic adhesive has the advantages, and meanwhile, has the problems of poor water resistance, halogen return and the like. In order to improve this phenomenon and expand the application range, many students have continuously explored the modification and application of magnesium oxychloride cement, such as changing the crystal phase composition by adding inorganic acid, salt, organic matters and the like to improve the water resistance, but the improvement effect is limited. The adhesive can not be used as a wood adhesive due to poor water resistance and cementing property.
Disclosure of Invention
Aiming at the problems, the invention provides a novel formaldehyde-free magnesium oxychloride cement inorganic adhesive. The inorganic adhesive has excellent water resistance, high cementing property, prepressing property and flame retardance, and can be used as an artificial board adhesive. Meanwhile, the magnesium oxychloride inorganic adhesive has the advantages of simple preparation process, readily available raw materials and easy implementation.
In a first aspect, the magnesium oxychloride inorganic adhesive provided by the invention comprises light-burned heavy magnesium oxide, magnesium chloride hexahydrate, water and a modifier; the modifier comprises polyacrylamide, sodium polyacrylate and pectin; the mass ratio of the polyacrylamide to the pectin to the sodium polyacrylate is 1: (3.5-10): (4.5-14).
The invention selects polyacrylamide, sodium polyacrylate and pectin as composite modifier, and utilizes-NH on the polyacrylamide 2 The groups react with the-COO of pectin and sodium polyacrylate by electrostatic action and hydrogen bonding - The groups interact to form a three-dimensional network structure, so that the rheological property of the system is improved.
In addition, the polyacrylamide and pectin have good water dispersion, so that MgO can be uniformly dispersed in water, and the interaction between sodium polyacrylate and MgO is promoted. Sodium polyacrylate-COO - Mg of group and magnesium oxychloride cement system 2+ The chelation is easy to convert rod-shaped 5-phase crystals in the magnesium oxychloride cement into a gel-like 5-phase structure, so that the water resistance of the magnesium oxychloride cement is improved.
The stable system formed by the interaction of the polyacrylamide, the pectin and the sodium polyacrylate ensures that the magnesium oxychloride cement uniformly permeates into the wood, so that the cement components at the cementing interface are normally distributed, the influence of the wood filtration effect is reduced, and the cementing performance is improved. The pectin has viscosity and excellent compatibility with wood cellulose, and the pre-compaction of the magnesium oxychloride inorganic glue is improved.
The magnesium oxychloride cement releases crystal water, can dilute oxygen and gas combustible products, reduce the temperature of the combustible gas, weaken the fire, and finally delay combustion. In addition, the final thermal decomposition residue MgO coating forms an insulating layer (isolated from air) on the polymer surface, inhibiting combustion heat transfer and diffusion of volatile gases. The problem of poor flame retardant property of the artificial board is solved.
Preferably, the mass ratio of the polyacrylamide, pectin and sodium polyacrylate is 1 (7.8-8.2): (8-10); and the mass ratio of the polyacrylamide to the light-burned heavy magnesium oxide is 1: (450-470). The comprehensive performance of the magnesium oxychloride inorganic adhesive can be further improved by controlling the adding proportion of the modifier.
Preferably, the galacturonic acid in the pectin is not less than 70%. The modifying effect of the pectin is ensured by controlling the content of the galacturonic acid in the pectin.
Preferably, the molecular weight of the polyacrylamide is 600-800 ten thousand.
Further, the mass ratio of the light burned heavy magnesium oxide, the magnesium chloride hexahydrate, the water, the sodium polyacrylate, the pectin and the polyacrylamide is 100: (54-75): (48-53): (1-3): (0.8-2.2): (0.1-0.4).
Preferably, the mass ratio of the light burned heavy magnesium oxide, the magnesium chloride hexahydrate, the water, the sodium polyacrylate, the pectin and the polyacrylamide is 100: (60-70): (50-55): (1.5-2.5): (0.8-2.2): (0.2-0.3). Research shows that in the proportion range, the obtained magnesium oxychloride inorganic adhesive has better comprehensive performance.
Preferably, the mass ratio of the light burned heavy magnesium oxide, the magnesium chloride hexahydrate, the water, the sodium polyacrylate and the polyacrylamide is 100: (60-70): (50-55): (1.8-2.2): (0.2-0.25). Research shows that in the proportion range, the obtained magnesium oxychloride inorganic adhesive has better comprehensive performance.
Preferably, the content of magnesium oxide in the light-burned heavy magnesium oxide is not less than 85%. The activity of the light-burned heavy magnesium oxide is 64%.
As one of the specific embodiments of the invention, the magnesium oxychloride inorganic adhesive consists of the following components in parts by weight: 100 parts of light burned heavy magnesium oxide, 64-68 parts of magnesium chloride hexahydrate, 48-53 parts of water, 1.8-2.2 parts of sodium polyacrylate, 0.8-2 parts of pectin and 0.2-0.25 part of polyacrylamide.
In a second aspect, the present invention also provides a method for preparing the magnesium oxychloride inorganic adhesive, which comprises the following steps:
(1) Mixing magnesium chloride hexahydrate and water according to a proportion, and fully and uniformly stirring to form a transparent mixed solution;
(2) Sequentially adding the modifier in the step (1) according to the proportion, and stirring until the mixture is uniform;
(3) And (3) adding light-burned heavy magnesium oxide according to the proportion in the step (2), and stirring to be uniform to obtain the inorganic adhesive.
Wherein, in the step (2), the sequence of the sequential addition of the modifying agents is as follows: sodium polyacrylate, polyacrylamide and pectin.
In a third aspect, the invention also provides an application of the magnesium oxychloride inorganic adhesive as an adhesive for an artificial board.
The invention has the beneficial effects that:
1. the invention selects polyacrylamide, sodium polyacrylate and pectin as composite modifier, and utilizes-NH on the polyacrylamide 2 The groups react with the-COO of pectin and sodium polyacrylate by electrostatic action and hydrogen bonding - The groups interact to form a three-dimensional network structure, so that the rheological property of the system is improved.
In addition, the polyacrylamide and pectin have good water dispersion, so that MgO can be uniformly dispersed in water, and the interaction between sodium polyacrylate and MgO is promoted. Sodium polyacrylate-COO - Mg of group and magnesium oxychloride cement system 2+ The chelation is easy to convert rod-shaped 5-phase crystals in the magnesium oxychloride cement into a gel-like 5-phase structure, so that the water resistance of the magnesium oxychloride cement is improved.
2. The stable system formed by the interaction of the polyacrylamide, the pectin and the sodium polyacrylate ensures that the magnesium oxychloride cement uniformly permeates into the wood, so that the cement components at the cementing interface are normally distributed, the influence of the wood filtration effect is reduced, and the cementing performance is improved. The pectin has viscosity and excellent compatibility with wood cellulose, and the pre-compaction of the magnesium oxychloride inorganic glue is improved.
3. The magnesium oxychloride cement releases crystal water, can dilute oxygen and gas combustible products, reduce the temperature of the combustible gas, weaken the fire, and finally delay combustion. In addition, the final thermal decomposition residue MgO coating forms an insulating layer (isolated from air) on the polymer surface, inhibiting combustion heat transfer and diffusion of volatile gases. The problem of poor flame retardant property of the artificial board is solved.
4. The magnesium oxychloride inorganic adhesive has the advantages of simple preparation process, readily available raw materials and easy implementation. As an adhesive for plywood, the adhesive does not contain organic volatile matters such as formaldehyde and the like, and thoroughly solves the pollution problem of the organic volatile matters in indoor air caused by the artificial board.
Detailed Description
The following examples are illustrative of the invention and are not intended to limit the scope of the invention.
In the following examples:
the content of the light-burned heavy magnesium oxide is 86%, the activity is 64%, and the light-burned heavy magnesium oxide can be purchased from Guangzhou Danlin trade company, liderwang trade company in Buddha, and the like.
The molecular weight of the polyacrylamide is 700 ten thousand, and the polyacrylamide can be purchased from Shandong Youcao chemical engineering Co.
The sodium polyacrylate is available from Shanghai Michlin Biochemical technology Co., ltd.
The pectin has galacturonic acid not less than 64% and may be purchased from Shanghai Michelia Biochemical technology Co.
The dispersion medium is selected from common tap water or distilled water.
Example 1
The invention provides a waterproof high-cementing-performance flame-retardant magnesium oxychloride inorganic adhesive and a preparation method thereof, comprising the following steps:
(1) 50.82g of magnesium chloride hexahydrate and 40.5g of water are mixed according to a proportion, and are fully and uniformly stirred to form a transparent mixed solution;
(2) 1.56g of sodium polyacrylate is added in the step (1) and stirred until uniform;
(3) Adding 0.171g of polyacrylamide in the step (2), and stirring until uniform;
(4) 78.12g of light-burned heavy magnesium oxide is added in the step (3), and the mixture is stirred for 10min to obtain the uniform inorganic adhesive.
The performance and quality indexes of the obtained adhesive are shown in tables 1, 2 and 3.
Example 2
The invention provides a waterproof high-cementing-performance flame-retardant magnesium oxychloride inorganic adhesive and a preparation method thereof, comprising the following steps:
(1) 50.82g of magnesium chloride hexahydrate and 40.5g of water are mixed according to a proportion, and are fully and uniformly stirred to form a transparent mixed solution;
(2) 1.56g of sodium polyacrylate is added in the step (1) and stirred until uniform;
(3) Adding 0.171g of polyacrylamide in the step (2), and stirring until uniform;
(4) Adding 0.678g pectin in the step (3), and stirring until uniform;
(5) 78.12g of light-burned heavy magnesium oxide is added in the step (4), and the mixture is stirred for 10min to obtain the uniform inorganic adhesive.
The performance and quality indexes of the obtained adhesive are shown in tables 1, 2 and 3.
Example 3
The invention provides a waterproof high-cementing-performance flame-retardant magnesium oxychloride inorganic adhesive and a preparation method thereof, comprising the following steps:
(1) 50.82g of magnesium chloride hexahydrate and 40.5g of water are mixed according to a proportion, and are fully and uniformly stirred to form a transparent mixed solution;
(2) 1.56g of sodium polyacrylate is added in the step (1) and stirred until uniform;
(3) Adding 0.171g of polyacrylamide in the step (2), and stirring until uniform;
(4) Adding 1.017g pectin in the step (3), and stirring until the pectin is uniform;
(5) 78.12g of light-burned heavy magnesium oxide is added in the step (4), and the mixture is stirred for 10min to obtain the uniform inorganic adhesive.
The performance and quality indexes of the obtained adhesive are shown in tables 1, 2 and 3.
Example 4
The invention provides a waterproof high-cementing-performance flame-retardant magnesium oxychloride inorganic adhesive and a preparation method thereof, comprising the following steps:
(1) 50.82g of magnesium chloride hexahydrate and 40.5g of water are mixed according to a proportion, and are fully and uniformly stirred to form a transparent mixed solution;
(2) 1.56g of sodium polyacrylate is added in the step (1) and stirred until uniform;
(3) Adding 0.171g of polyacrylamide in the step (2), and stirring until uniform;
(4) Adding 1.356g pectin in the step (3), and stirring to uniformity;
(5) 78.12g of light-burned heavy magnesium oxide is added in the step (4), and the mixture is stirred for 10min to obtain the uniform inorganic adhesive.
The performance and quality indexes of the obtained adhesive are shown in tables 1, 2 and 3.
Example 5
The invention provides a waterproof high-cementing-performance flame-retardant magnesium oxychloride inorganic adhesive and a preparation method thereof, comprising the following steps:
(1) 50.82g of magnesium chloride hexahydrate and 40.5g of water are mixed according to a proportion, and are fully and uniformly stirred to form a transparent mixed solution;
(2) 1.56g of sodium polyacrylate is added in the step (1) and stirred until uniform;
(3) Adding 0.171g of polyacrylamide in the step (2), and stirring until uniform;
(4) Adding 1.694g of pectin in the step (3), and stirring until uniform;
(5) 78.12g of light-burned heavy magnesium oxide is added in the step (4), and the mixture is stirred for 10min to obtain the uniform inorganic adhesive.
The performance and quality indexes of the obtained adhesive are shown in tables 1, 2 and 3.
Comparative example
The invention provides a waterproof high-cementing-performance flame-retardant magnesium oxychloride inorganic adhesive and a preparation method thereof, comprising the following steps:
(1) 50.82g of magnesium chloride hexahydrate and 40.5g of water are mixed according to a proportion, and are fully and uniformly stirred to form a transparent mixed solution;
(2) 78.12g of light-burned heavy magnesium oxide is added in the step (1), and the mixture is stirred for 10min to obtain the uniform inorganic adhesive.
The performance and quality indexes of the obtained adhesive are shown in tables 1, 2 and 3.
And (3) effect verification:
the magnesium oxychloride inorganic adhesives prepared in examples 1 to 5 and comparative examples of the present invention were subjected to performance test as follows:
pouring the prepared magnesium oxychloride inorganic adhesive into a mould, solidifying for 24 hours at normal temperature, demoulding, curing for 3 and 7 days in a constant temperature and humidity box, and evaluating the performance of the magnesium oxychloride inorganic adhesive.
1. Bonding strength of magnesium oxychloride inorganic adhesive
The bonding strength was evaluated by a basswood chip single lap test, the chip sample size was 100 mm. Times.25 mm. Times.4 mm, the sizing area was 25 mm. Times.25 mm, and the sizing amount was 400g/m 2 . The lap joint test pieces were cold pressed at 0.8MPa for 24h. And then taken out and placed at room temperature for 6 days.
The dry bonding strength is wet bonding strength, which is obtained by bonding and solidifying a basswood board for 7 days, immersing the basswood board in warm water (60+/-3 ℃) for 3 hours, cooling the basswood board at room temperature for 10 minutes, and taking an average value of 10 samples of each group. The dry bond strength was the 7 day cure sample strength. The test results are shown in Table 1 below.
TABLE 1 sample bond strength (MPa)
| Sample of | Comparative example | Example 1 | Example 2 | Example 3 | Example 4 | Example 5 |
| Dry bond strength | 2.29 | 2.92 | 3.08 | 3.15 | 3.24 | 2.89 |
| Wet bond strength | 1.16 | 1.72 | 1.77 | 1.85 | 2.01 | 1.88 |
2. Compressive strength of magnesium oxychloride inorganic adhesive after curing for 3 and 7 days and soaking in water for 7 days after curing for 7 days
TABLE 2 compressive strength of magnesium oxychloride inorganic glue
| Compressive Strength | Comparative example | Example 1 | Example 2 | Example 3 | Example 4 | Example 5 |
| Curing for 3d | 42.13 | 39.94 | 38.89 | 37.43 | 37.7 | 35.4 |
| Curing for 7d | 48.79 | 49.19 | 50.4 | 52.84 | 56.88 | 54.4 |
| Soaking in water 7d | 4.15 | 34.26 | 40.3 | 41.2 | 44.35 | 35.83 |
Experimental results show that the wet bonding strength of the magnesium oxychloride inorganic adhesive is obviously improved, wherein the wet bonding strength of the magnesium oxychloride inorganic adhesive obtained in the embodiment 4 can reach 2.01MPa, which is improved by about 73% compared with that of a control group (1.16 MPa).
In addition, after curing for 7 days, the compressive strength of the magnesium oxychloride inorganic glue obtained in the examples 1-5 is enhanced compared with that of the comparative example; and the magnesium oxychloride inorganic glue obtained in the examples 1-5 has obviously improved water resistance, and is improved by 863% at most compared with the comparative example. The modified adhesive has remarkable water resistance and cementing property enhancement effects.
However, it was found that when the compounding ratio of the modifier was not proper and the addition ratio was too high, the wet bond strength, water resistance and adhesive bonding property of the obtained magnesium oxychloride inorganic adhesive were rather lowered, as in example 5.
3. Pre-pressing property of magnesium oxychloride inorganic adhesive
Table 3 initial tackiness (KPa) of the test pieces
| Sample of | Comparative example | Example 1 | Example 2 | Example 3 | Example 4 | Example 5 |
| Initial tackiness | 0.15 | 2.17 | 4.76 | 6.67 | 9.11 | 9.26 |
The experimental results show that the initial tack of the modified inorganic adhesive is significantly improved compared to the comparative examples, particularly examples 2-5, wherein example 5 reaches 9.26KPa, which is 60.7 times that of the comparative example. The method shows that the synergistic modification of the polyacrylamide, the pectin and the sodium polyacrylate can obviously improve the initial viscosity of the magnesium oxychloride inorganic adhesive, so that the prepressing performance of the magnesium oxychloride inorganic adhesive in artificial board processing is improved.
While the invention has been described in detail in the foregoing general description and with reference to specific embodiments thereof, it will be apparent to one skilled in the art that modifications and improvements can be made thereto. Accordingly, such modifications or improvements may be made without departing from the spirit of the invention and are intended to be within the scope of the invention as claimed.
Claims (8)
1. The magnesium oxychloride inorganic adhesive is characterized by comprising light-burned heavy magnesium oxide, magnesium chloride hexahydrate, water and a modifier; the modifier comprises polyacrylamide, pectin and sodium polyacrylate;
the mass ratio of the polyacrylamide to the pectin to the sodium polyacrylate is 1: (3.5-10): (4.5-14); the mass ratio of the light-burned heavy magnesium oxide to the hexahydrate to the water to the sodium polyacrylate to the pectin to the polyacrylamide is 100: (54-75): (46-58): (1-3): (0.8-2.2): (0.1-0.4);
the preparation method of the magnesium oxychloride inorganic adhesive comprises the following steps:
(1) Mixing magnesium chloride hexahydrate and water according to a proportion, and fully and uniformly stirring to form a transparent mixed solution;
(2) Sequentially adding the modifier in the step (1) according to the proportion, and stirring until the mixture is uniform;
(3) And (3) adding light-burned heavy magnesium oxide according to the proportion in the step (2), and stirring to be uniform to obtain the inorganic adhesive.
2. The magnesium oxychloride inorganic adhesive according to claim 1, wherein the mass ratio of the polyacrylamide to the pectin to the sodium polyacrylate is 1: (7.8-8.2): (8-10).
3. The magnesium oxychloride inorganic adhesive according to claim 2, wherein galacturonic acid in the pectin is not less than 70%.
4. The magnesium oxychloride inorganic adhesive according to claim 3, wherein the mass ratio of the light burned heavy magnesium oxide, the magnesium chloride hexahydrate, the water, the sodium polyacrylate, the pectin and the polyacrylamide is 100: (60-70): (50-55): (1.5-2.5): (0.8-2.2): (0.2-0.3).
5. The magnesium oxychloride inorganic adhesive according to claim 4, wherein the content of magnesium oxide in the light burned heavy magnesium oxide is not less than 85%;
the activity of the light-burned heavy magnesium oxide is 64%.
6. The magnesium oxychloride inorganic adhesive according to claim 1, wherein the magnesium oxychloride inorganic adhesive comprises the following components in parts by weight: 100 parts of light burned heavy magnesium oxide, 64-68 parts of magnesium chloride hexahydrate, 48-53 parts of water, 1.8-2.2 parts of sodium polyacrylate, 0.8-2 parts of pectin and 0.2-0.25 part of polyacrylamide.
7. The method for preparing the magnesium oxychloride inorganic adhesive according to any one of claims 1 to 6, which is characterized by comprising the following steps:
(1) Mixing magnesium chloride hexahydrate and water according to a proportion, and fully and uniformly stirring to form a transparent mixed solution;
(2) Sequentially adding the modifier in the step (1) according to the proportion, and stirring until the mixture is uniform;
(3) And (3) adding light-burned heavy magnesium oxide according to the proportion in the step (2), and stirring to be uniform to obtain the inorganic adhesive.
8. Use of the magnesium oxychloride inorganic adhesive according to any one of claims 1 to 6 as an adhesive for artificial boards.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101757685A (en) * | 2010-01-22 | 2010-06-30 | 孙桂森 | Preparation method of medical glass fiber magnesium-containing hydroxyapatite bone cement product |
| CN110272258A (en) * | 2019-06-15 | 2019-09-24 | 北京林业大学 | A kind of high strong water resistant magnesia oxychloride cement and preparation method thereof |
| CN114075066A (en) * | 2021-05-08 | 2022-02-22 | 新狮展(上海)展示服务有限公司 | Magnesium oxychloride reinforced composite material and preparation method thereof |
| CN114525079A (en) * | 2022-01-19 | 2022-05-24 | 北京林业大学 | Formaldehyde-free flame-retardant magnesium oxychloride cement-based wood adhesive and preparation method thereof |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101757685A (en) * | 2010-01-22 | 2010-06-30 | 孙桂森 | Preparation method of medical glass fiber magnesium-containing hydroxyapatite bone cement product |
| CN110272258A (en) * | 2019-06-15 | 2019-09-24 | 北京林业大学 | A kind of high strong water resistant magnesia oxychloride cement and preparation method thereof |
| CN114075066A (en) * | 2021-05-08 | 2022-02-22 | 新狮展(上海)展示服务有限公司 | Magnesium oxychloride reinforced composite material and preparation method thereof |
| CN114525079A (en) * | 2022-01-19 | 2022-05-24 | 北京林业大学 | Formaldehyde-free flame-retardant magnesium oxychloride cement-based wood adhesive and preparation method thereof |
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