CN114012857A - Preparation method of high-performance magnesium-based inorganic flame-retardant shaving board - Google Patents
Preparation method of high-performance magnesium-based inorganic flame-retardant shaving board Download PDFInfo
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- CN114012857A CN114012857A CN202111203032.8A CN202111203032A CN114012857A CN 114012857 A CN114012857 A CN 114012857A CN 202111203032 A CN202111203032 A CN 202111203032A CN 114012857 A CN114012857 A CN 114012857A
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- magnesium
- wood shavings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/02—Manufacture of substantially flat articles, e.g. boards, from particles or fibres from particles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N1/00—Pretreatment of moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N1/00—Pretreatment of moulding material
- B27N1/02—Mixing the material with binding agent
- B27N1/0227—Mixing the material with binding agent using rotating stirrers, e.g. the agent being fed through the shaft of the stirrer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/08—Moulding or pressing
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Mechanical Engineering (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
Abstract
The invention discloses a preparation method of a high-performance magnesium-based inorganic flame-retardant shaving board, which comprises the following steps: drying the pine wood shavings crushed by the crusher; weighing polyvinyl alcohol and distilled water according to a proportion, heating and stirring until the polyvinyl alcohol and the distilled water are completely dissolved; preparing magnesium-based inorganic adhesive from magnesium sulfate and magnesium oxide, and uniformly mixing the dried wood shavings and the magnesium-based inorganic adhesive to prepare dry wood shavings containing the magnesium-based inorganic adhesive; adding a reinforcing agent and a curing agent into the aqueous adhesive solution, uniformly stirring until no solid exists, mixing with dry wood shavings containing the magnesium inorganic adhesive, uniformly mixing again to obtain the wood shavings after gluing, and sending the wood shavings into a press to be hot-pressed into boards to prepare the magnesium inorganic flame-retardant shaving board. The invention makes full use of the advantages of the magnesium inorganic adhesive in flame retardance and the performance of the wood shavings, prepares the board meeting the national standard requirements on one hand, provides a new product type for the flame-retardant building material market on the other hand, and brings a novel product for enterprises producing shaving boards.
Description
Technical Field
The invention relates to a preparation method of an inorganic shaving board, in particular to a preparation method of a high-performance magnesium-based inorganic flame-retardant shaving board.
Background
The flame retardant used in the artificial board flame retardant treatment is usually an inorganic salt flame retardant, and the common shaving board in the market can meet the second-level fireproof requirement after flame retardant treatment, while the magnesium-based inorganic shaving board can meet the first-level fireproof requirement without special treatment. The research adopts the self-made pine wood shavings as the raw material and combines the magnesium inorganic adhesive to prepare the high-performance flame-retardant shaving board, thereby enhancing the special application value of the shaving board, bringing new products for related enterprises, reducing environmental pollution and having very important significance for the production and application of the flame-retardant artificial board and the environmental protection of enterprises and society.
Disclosure of Invention
In order to solve the problems that the flame-retardant shaving board is poor in performance and causes environmental pollution when flame-retardant treatment is carried out, the process design of the high-performance inorganic flame-retardant shaving board is carried out, artificial board production enterprises are supported, the problem that the flame-retardant treatment damages the environment is solved, and the reutilization rate of wood shavings is increased and created.
In order to achieve the purpose, the invention adopts the technical scheme that:
a preparation method of a high-performance magnesium-based inorganic flame-retardant shaving board comprises the following steps:
(1) crushing the wood shavings by using a crusher, screening qualified wood shavings by using a 15-75-mesh shaking screen, and drying the wood shavings in an oven until the water content is 6-8.5%;
(2) adding 2-3 parts by weight of polyvinyl alcohol into 37-38 parts by weight of distilled water, setting the temperature to be 70-90 ℃ by using an electric heating sleeve, uniformly stirring by using an electronic stirrer at the rotating speed of 260-300 rad/min until the solid part in a beaker is completely dissolved, and closing a heater to continuously stir until the glue solution is cooled to the room temperature to obtain the water-based glue solution;
(3) preparing 10-12 parts of magnesium sulfate and 21-23 parts of magnesium oxide into a magnesium-based inorganic adhesive, uniformly mixing 27-29 parts of dried wood shavings in the step (1) with the magnesium-based inorganic adhesive by using a glue mixer, and preparing dry wood shavings containing the magnesium-based inorganic adhesive;
(4) adding a reinforcing agent accounting for 2-7% of the dried pine wood shavings and a curing agent accounting for 1-5% of the magnesium inorganic adhesive into the aqueous adhesive solution obtained in the step (2), uniformly stirring until no solid exists, mixing with the dried shavings containing the magnesium inorganic adhesive prepared in the step (3), and uniformly mixing again to obtain the required glued shavings;
(5) and (3) uniformly mixing the mixed wood shavings and paving the wood shavings, and then sending the wood shavings into a press, wherein the set hot pressing parameters are as follows: the hot pressing temperature is 220 ℃, the pressure maintaining time is 350S, and the pressure maintaining pressure is 3.5 MPa;
(6) and curing the formed board at room temperature for 5-7 days, cutting edges, and sanding to obtain the magnesium-based inorganic shaving board.
Further, the magnesium oxide and magnesium sulfate used in the magnesium-based inorganic adhesive refer to different types of raw materials, including but not limited to heavy magnesium oxide, light-burned magnesium oxide, and magnesium sulfate heptahydrate.
Further, the reinforcing agent in step (4) is isocyanate, and isocyanate refers to a generic name of various esters of isocyanate, including but not limited to Toluene Diisocyanate (TDI), isophorone diisocyanate (IPDI), and diphenylmethane diisocyanate (MDI).
Further, the curing agent is magnesium chloride
Furthermore, the wood shavings are pine wood shavings.
Furthermore, the mass ratio of the magnesium-based inorganic adhesive, the dried pine wood shavings, the reinforcing agent and the curing agent is (124-.
The invention has the following beneficial effects: the magnesium-based high-performance inorganic flame-retardant shaving board is a wood-based composite material which has no pollution to the environment, good flame-retardant performance and excellent mechanical property, the magnesium-based inorganic adhesive and pine wood shavings are prepared, and the adhesive which has no free aldehyde and free phenol release is used for hot pressing to form the board, so that the characteristic that the traditional shaving board is polluted by flame-retardant treatment can be improved, the traditional shaving board production line can be widened, a new product of the inorganic shaving board is developed, and the magnesium-based high-performance inorganic flame-retardant shaving board has an objective green and environment-friendly prospect.
Detailed Description
In order to more clearly illustrate the invention, the invention is further described below in connection with preferred embodiments.
Example 1:
drying the crushed pine wood shavings, putting 75g of polyvinyl alcohol into a 2000ml beaker, adding 925g of distilled water, setting the temperature to be 80 ℃ by using an electric heating sleeve, setting the rotating speed to be 290rad/min by using an electronic stirrer, stirring at a constant speed until the solid part in the beaker is completely dissolved, and turning off a heater to continue stirring until the glue solution is cooled to the room temperature. 684.34g of heavy magnesium oxide and 342.17g of magnesium sulfate are taken, 923.85g of dried wood shavings are weighed and evenly mixed with the three components by a glue blender. Taking 306g of cooled water-based adhesive, adding 10.26g of magnesium chloride as a curing agent, adding 30g of isocyanate adhesive, uniformly stirring, pouring into a glue mixer, mixing with wood shavings again, uniformly paving the mixed wood shavings, and sending the wood shavings into a press, wherein the set hot pressing parameters are as follows: the hot pressing temperature is 220 ℃, the pressure maintaining time is 350S, the hot pressing pressure is 3.5MPa, the formed board is maintained at room temperature for 5-7 days, the edge cutting and sanding treatment are carried out on the maintained board, the thickness of the prepared magnesium inorganic shaving board is 16mm, and all performances are tested and combined with the national standard requirement P2 grade.
Example 2:
drying the crushed pine wood shavings, putting 80g of polyvinyl alcohol into a 2000ml beaker, adding 920g of distilled water, setting the temperature to be 85 ℃ by using an electric heating sleeve, setting the rotating speed to be 280rad/min by using an electronic stirrer, stirring at a constant speed until the solid part in the beaker is completely dissolved, and turning off a heater to continue stirring until the glue solution is cooled to the room temperature. 652.13g of heavy magnesium oxide and 326.07g of magnesium sulfate are taken, 902.10g of dried wood shavings are weighed and evenly mixed with the three components by a glue blender. 383.3g of cooled water-based adhesive is taken, 15.39g of magnesium chloride is added to serve as a curing agent, 42g of isocyanate adhesive is added to be uniformly stirred, the mixture is poured into a glue mixer to be mixed with wood shavings again, the mixed wood shavings are uniformly paved, and the mixture is sent into a press machine to set the hot pressing parameters as follows: the hot pressing temperature is 220 ℃, the pressure maintaining time is 350S, the hot pressing pressure is 3.5MPa, the formed board is maintained at room temperature for 5-7 days, the edge cutting and sanding treatment are carried out on the maintained board, the thickness of the prepared magnesium inorganic shaving board is 16mm, and all performances are tested and combined with the national standard requirement P2 grade.
Example 3:
drying the crushed pine wood shavings, putting 75g of polyvinyl alcohol into a 2000ml beaker, adding 925g of distilled water, setting the temperature to be 80 ℃ by using an electric heating sleeve, setting the rotating speed to be 300rad/min by using an electronic stirrer, stirring at a constant speed until the solid part in the beaker is completely dissolved, and turning off a heater to continue stirring until the glue solution is cooled to the room temperature. 647.02g of heavy magnesium oxide and 323.51g of magnesium sulfate are taken, 866.91g of dried wood shavings are weighed and evenly mixed with the three components by a glue blender. 401.6g of cooled water-based adhesive is taken, 20.52g of magnesium chloride is added to serve as a curing agent, 28g of isocyanate adhesive is added to be uniformly stirred, the mixture is poured into a glue mixer to be mixed with wood shavings again, the mixed wood shavings are uniformly paved, and the mixture is sent into a press machine to set the hot pressing parameters as follows: the hot pressing temperature is 220 ℃, the pressure maintaining time is 400S, the hot pressing pressure is 3.5MPa, the formed board is maintained at room temperature for 5-7 days, the edge cutting and sanding treatment are carried out on the maintained board, the thickness of the prepared magnesium inorganic shaving board is 16mm, and all performances are tested and combined with the national standard requirement P2 grade.
Claims (7)
1. A preparation method of a high-performance magnesium-based inorganic flame-retardant shaving board comprises the following process steps:
(1) putting the crushed and sieved wood shavings into an oven to be dried until the water content is 6-8.5%;
(2) adding 2-3 parts by weight of polyvinyl alcohol into 37-38 parts by weight of distilled water, setting the temperature to be 70-90 ℃ by using an electric heating sleeve, uniformly stirring by using an electronic stirrer at the rotating speed of 260-300 rad/min until the solid part in a beaker is completely dissolved, and closing a heater to continuously stir until the glue solution is cooled to the room temperature to obtain the water-based glue solution;
(3) preparing 10-12 parts of magnesium sulfate and 21-23 parts of magnesium oxide into a magnesium-based inorganic adhesive, uniformly mixing 27-29 parts of dried wood shavings in the step (1) with the magnesium-based inorganic adhesive by using a glue mixer, and preparing dry wood shavings containing the magnesium-based inorganic adhesive;
(4) adding a reinforcing agent accounting for 2-7% of the dried pine wood shavings and a curing agent accounting for 1-5% of the magnesium inorganic adhesive into the aqueous adhesive solution obtained in the step (2), uniformly stirring until no solid exists, mixing with the dried shavings containing the magnesium inorganic adhesive prepared in the step (3), and uniformly mixing again to obtain the required glued shavings;
(5) uniformly paving the mixed wood shavings, and then sending the wood shavings into a press, wherein the set hot-pressing parameters are as follows: the hot pressing temperature is 220 ℃, the pressure maintaining time is 350S, and the pressure maintaining pressure is 3.5 MPa;
(6) and curing the formed board at room temperature for 5-7 days, cutting edges and sanding to obtain the magnesium-based inorganic shaving board.
2. The method for preparing the high-performance magnesium-based inorganic flame-retardant particle board according to claim 1, wherein the method comprises the following steps: the magnesium sulfate in the step (3) is magnesium sulfate heptahydrate, and the magnesium oxide is heavy magnesium oxide.
3. The method for preparing the high-performance magnesium-based inorganic flame-retardant particle board according to claim 1, wherein the method comprises the following steps: in the step (3), the reinforcing agent is isocyanate.
4. The method for preparing the high-performance magnesium-based inorganic flame-retardant particle board according to claim 3, wherein the method comprises the following steps: the isocyanate is one of toluene diisocyanate, isophorone diisocyanate or diphenylmethane diisocyanate.
5. The method for preparing the high-performance magnesium-based inorganic flame-retardant particle board according to claim 1, wherein the method comprises the following steps: the curing agent is magnesium chloride.
6. The method for preparing the high-performance magnesium-based inorganic flame-retardant particle board according to claim 1, wherein the method comprises the following steps: the wood shavings in the step (1) are pine wood shavings.
7. The method for preparing the high-performance magnesium-based inorganic flame-retardant particle board according to claim 1, wherein the method comprises the following steps: the mass ratio of the magnesium inorganic adhesive, the dried pine wood shavings, the reinforcing agent and the curing agent is (124-.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111203032.8A CN114012857A (en) | 2021-10-15 | 2021-10-15 | Preparation method of high-performance magnesium-based inorganic flame-retardant shaving board |
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| CN202111203032.8A CN114012857A (en) | 2021-10-15 | 2021-10-15 | Preparation method of high-performance magnesium-based inorganic flame-retardant shaving board |
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| CN202111203032.8A Pending CN114012857A (en) | 2021-10-15 | 2021-10-15 | Preparation method of high-performance magnesium-based inorganic flame-retardant shaving board |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114685138A (en) * | 2022-04-15 | 2022-07-01 | 千年舟新材科技集团股份有限公司 | Inorganic adhesive, flame-retardant OSB composite board using inorganic adhesive and preparation method |
| CN114905597A (en) * | 2022-05-11 | 2022-08-16 | 内蒙古农业大学 | Method for rapidly preparing inorganic shaving board |
| CN115872712A (en) * | 2022-11-29 | 2023-03-31 | 广州科源新材料有限公司 | Dry-process-molded A-grade inorganic magnesium fireproof plate, preparation method and calender equipment |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1079933A (en) * | 1992-06-10 | 1993-12-29 | 米哈伊尔·瓦西利耶维奇·比柳科夫 | The manufacturing method and apparatus of moulding rolled-up stock |
| CN1126105A (en) * | 1994-10-07 | 1996-07-10 | 东洋工程株式会社 | Method for desulfurizing exhaust gas |
| CN101107132A (en) * | 2005-02-04 | 2008-01-16 | 富士胶片株式会社 | Ink jet recording medium |
| CN101229583A (en) * | 2008-01-17 | 2008-07-30 | 武汉科技大学 | Pouring box magnesium-base coating |
| CN104031564A (en) * | 2014-06-13 | 2014-09-10 | 连云港保丽森实业有限公司 | Fireproof environment-friendly inorganic adhesive as well as preparation method and preparation system thereof |
| CN107033832A (en) * | 2017-05-12 | 2017-08-11 | 山东农业大学 | A kind of wood-based plate is with without aldehyde composite adhesive and preparation method thereof |
| CN109503108A (en) * | 2018-12-13 | 2019-03-22 | 方勤良 | Inorganic material composite floor board |
-
2021
- 2021-10-15 CN CN202111203032.8A patent/CN114012857A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1079933A (en) * | 1992-06-10 | 1993-12-29 | 米哈伊尔·瓦西利耶维奇·比柳科夫 | The manufacturing method and apparatus of moulding rolled-up stock |
| CN1126105A (en) * | 1994-10-07 | 1996-07-10 | 东洋工程株式会社 | Method for desulfurizing exhaust gas |
| CN101107132A (en) * | 2005-02-04 | 2008-01-16 | 富士胶片株式会社 | Ink jet recording medium |
| CN101229583A (en) * | 2008-01-17 | 2008-07-30 | 武汉科技大学 | Pouring box magnesium-base coating |
| CN104031564A (en) * | 2014-06-13 | 2014-09-10 | 连云港保丽森实业有限公司 | Fireproof environment-friendly inorganic adhesive as well as preparation method and preparation system thereof |
| CN107033832A (en) * | 2017-05-12 | 2017-08-11 | 山东农业大学 | A kind of wood-based plate is with without aldehyde composite adhesive and preparation method thereof |
| CN109503108A (en) * | 2018-12-13 | 2019-03-22 | 方勤良 | Inorganic material composite floor board |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114685138A (en) * | 2022-04-15 | 2022-07-01 | 千年舟新材科技集团股份有限公司 | Inorganic adhesive, flame-retardant OSB composite board using inorganic adhesive and preparation method |
| CN114905597A (en) * | 2022-05-11 | 2022-08-16 | 内蒙古农业大学 | Method for rapidly preparing inorganic shaving board |
| CN115872712A (en) * | 2022-11-29 | 2023-03-31 | 广州科源新材料有限公司 | Dry-process-molded A-grade inorganic magnesium fireproof plate, preparation method and calender equipment |
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