CN111571736A - Fireproof flame-retardant environment-friendly core-board with fir core and preparation method thereof - Google Patents
Fireproof flame-retardant environment-friendly core-board with fir core and preparation method thereof Download PDFInfo
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- CN111571736A CN111571736A CN202010483929.XA CN202010483929A CN111571736A CN 111571736 A CN111571736 A CN 111571736A CN 202010483929 A CN202010483929 A CN 202010483929A CN 111571736 A CN111571736 A CN 111571736A
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- Prior art keywords
- core
- retardant
- fireproof
- flame
- adhesive
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
- B27K3/02—Processes; Apparatus
- B27K3/0207—Pretreatment of wood before impregnation
- B27K3/0214—Drying
-
- 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
-
- 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
- B27D1/08—Manufacture of shaped articles; Presses specially designed therefor
-
- 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
- B27D1/10—Butting blanks of veneer; Joining same along edges; Preparatory processing of edges, e.g. cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
- B27G11/00—Applying adhesives or glue to surfaces of wood to be joined
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
- B27K3/02—Processes; Apparatus
- B27K3/12—Impregnating by coating the surface of the wood with an impregnating paste
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K2240/00—Purpose of the treatment
- B27K2240/30—Fireproofing
Abstract
The invention discloses a fireproof flame-retardant environment-friendly core-board with a fir core and a preparation method thereof, wherein the preparation method comprises the following steps: combing the dried fir wood laths with two ends of a combing machine, and then butting the laths into a required length; coating adhesive with a fireproof flame retardant on the side surfaces of the butted battens, assembling the battens into a required width, and then sending the battens into a four-side press to be pressed to form a plate core; uniformly spraying or coating fireproof flame-retardant penetrating fluid on two surfaces of the plate core; the plate core is sent into a drying room to be baked and then cooled and shaped; grooving the front side and the back side of the plate core, and filling adhesive with a fireproof flame retardant in the grooves; coating adhesive on the front and back surfaces of the plate core and then covering the single plate; pre-pressing the stored plate blank and then carrying out hot pressing; gluing the front and back plate surfaces of the sand flat plate blank, pasting a veneer on the front and back plate surfaces of the sand flat plate blank, and hot-pressing the front and back plate surfaces; cooling and shaping to obtain the finished product. By technological innovation, the manufactured core-board can achieve a very good fireproof and flame-retardant effect, and the fireproof and flame-retardant grade reaches B1 grade.
Description
Technical Field
The invention relates to the field of decorative plates, in particular to a fireproof flame-retardant environment-friendly core-board with a fir core and a preparation method thereof.
Background
With the continuous development of economic construction in China and the improvement of the living standard of people, people put forward higher requirements on the aspects of beauty, comfort and other functions of building and decoration plates. The core-board is a board made of natural wood veneer and solid wood jointed board through manual treatment, and has the advantages of uniform specification, light weight, easy processing, good nail-holding power, no deformation and the like, so the core-board is widely used in the fields of buildings, indoor decoration and the like. However, the core-board is an inflammable material, has no characteristics of flame retardance or combustion delay in a fire disaster, and has great potential safety hazard.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides the fireproof flame-retardant environment-friendly core-board with the fir core and the preparation method thereof.
The invention provides a preparation method of a fireproof flame-retardant environment-friendly core-board made of fir wood, which comprises the following steps:
(1) sawing the fir into strip-shaped battens, and baking the battens in a drying room to enable the water content of the battens to be within 14%;
(2) the two ends of the lath are combed by a combing machine, and then the lath is butted into a required length;
(3) preparing an adhesive A: fully and uniformly stirring 100 parts by weight of urea-formaldehyde resin adhesive, 20-40 parts by weight of fireproof flame retardant and 20-30 parts by weight of flour to prepare adhesive A for later use;
(4) coating adhesive A on the butted side surfaces of the battens, conveying the batten assembly into a four-side press for pressing after the batten assembly is formed into a required width, and ventilating, cooling and shaping after pressure relief to form a plate core;
(5) preparing fireproof flame-retardant penetrating fluid: fully and uniformly stirring 100 parts by weight of water and 20-40 parts by weight of fireproof flame retardant to prepare fireproof flame-retardant penetrating fluid for later use;
(6) uniformly spraying or coating fireproof flame-retardant penetrating fluid on two surfaces of the plate core, wherein the using amount of the fireproof penetrating fluid is 0.06-0.08 Kg/m 2;
(7) sending the board core with the fireproof flame-retardant penetrating fluid sprayed on the two surfaces into a drying room for baking at the baking temperature of 40-60 ℃ for 6-12 hours, and then cooling and shaping;
(8) slotting the front and back surfaces of the plate core, wherein the width of the slotting is 1-3 mm, the depth of the slotting is 2-4 mm, the distance between every two adjacent slots is 20-40 mm, and an adhesive A is filled in the slots;
(9) preparing an adhesive B: fully and uniformly stirring 100 parts by weight of urea-formaldehyde resin adhesive, 30 parts by weight of fireproof flame retardant, 25 parts by weight of flour and 3 parts by weight of aldehyde removing agent to prepare adhesive B for later use;
(10) coating adhesive B on the front and back surfaces of the board core, wherein the coating amount is 0.45-0.55 Kg/m2, covering single boards on the front and back surfaces of the board core, and then storing for 3 hours;
(11) putting the stored plate blank into a prepress for prepressing, and then sending the plate blank into a hot press for hot pressing;
(12) sanding the front and back plate surfaces of the plate blank by using a sander, then coating adhesive B with the coating amount of 0.4-0.45 Kg/m2, attaching veneer boards on the front and back surfaces of the plate blank, and hot-pressing;
(13) and (5) after hot pressing, radiating for 10 hours, cooling and shaping to obtain a finished product.
Further, the length of the batten is 200 mm-800 mm, the width is 30 mm-70 mm, and the thickness is 8 mm-15 mm.
Furthermore, the fireproof flame retardant in the adhesive A, the fireproof flame-retardant penetrating fluid and the adhesive B is an intumescent flame retardant.
Further, in the step (4), the positive pressure is 3MPa, the lateral pressure is 8MPa, the temperature is 135 ℃, and the time is 120 seconds.
Further, the length direction of the single plate is vertical to the length direction of the lath in the step (9).
Further, in the step (10), the pre-pressing pressure is 10MPa, the time is 30 minutes, the hot-pressing pressure is 12MPa, the time is 12 minutes, and the temperature is 120 ℃.
Further, in the step (11), the hot-pressing temperature of the facing plate is 118 ℃, the pressure is 9MPa, and the time is 7 minutes.
The invention also provides the fireproof flame-retardant environment-friendly core-board with the fir core, which is prepared by the preparation method.
The invention has the beneficial effects that:
(1) according to the invention, the two ends of the lath are combed and then butted into the required length, so that the structural force of the lath can be increased;
(2) the invention adds the fireproof flame retardant and the flour into the urea-formaldehyde resin glue to form the adhesive with fireproof flame retardant effect, and the adhesive is used for gluing the laths and each layer of the veneers, so that the distribution of the fireproof flame retardant in the whole core board is wider (comprising an adhesive A coated between the laths, a fireproof flame retardant penetrating fluid sprayed on the core, an adhesive A coated in the slot of the core and on the front and back sides of the core, and an adhesive B coated on the front and back sides of the veneer), and each part of the core board has good fireproof flame retardant effect;
(3) spraying fireproof and flame-retardant penetrating fluid on the board core, and then carrying out hot pressing, so that the fireproof and flame-retardant penetrating fluid can quickly penetrate into the board core after encountering high temperature, and volatilizing redundant water;
(4) and grooves are formed in the front and back surfaces of the board core and filled with adhesive with the fireproof flame retardant, so that more fireproof flame retardant can permeate into the fibers of the board core.
By technological innovation, the manufactured core-board can achieve a very good fireproof and flame-retardant effect, the fireproof and flame-retardant grade reaches B1 grade (flame-retardant), and the national standard GB8624 (furniture in Table 5); the environmental protection grade reaches E1 grade (0.429); the dip peel (strength) was 100%; the water content was 9.55%. Flame spraying test by an oxygen welding gun: after the flaming is carried out for 30 seconds, the oxygen welding gun is closed to stop the flaming, the flame of the finished board is extinguished within 3 seconds, and the carbonization area is 12cm2After the flaming for 60 seconds, the gas welding gun is closed, the flaming is stopped, the flame of the finished board is extinguished within 3 seconds, and the carbonization area is 16cm2Left and right.
Detailed Description
The present invention is further illustrated by the following examples, but the scope of the present invention is not limited to the following examples.
The preparation method of the fireproof, flame-retardant and environment-friendly fir core blockboard provided by the embodiment of the invention comprises the following steps:
(1) sawing the fir into strip-shaped battens with the length of 200-800 mm, the width of 30-70 mm and the thickness of 8-15 mm, stacking the battens, and sending the battens into a drying room for baking to enable the water content of the battens to be within 12%;
(2) combing two ends of the lath by a comb-combing machine, and then butting the lath into a lath with 2470 mm;
(3) preparing an adhesive A: fully and uniformly stirring 100 parts by weight of urea-formaldehyde resin adhesive, 30 parts by weight of fireproof flame retardant and 25 parts by weight of flour to prepare adhesive A for later use;
(4) coating adhesive A on the butted side surfaces of the battens, forming a batten assembly into a width of 1250mm, then sending the batten assembly into a four-side press to be pressed, wherein the positive pressure is 3MPa, the side pressure is 8MPa, the temperature is 135 ℃, the time is 120 seconds, and after pressure relief, ventilation, cooling and shaping are carried out to form a plate core of 2470mm multiplied by 1240mm multiplied by 0.8-15 mm;
(5) preparing fireproof flame-retardant penetrating fluid: fully and uniformly stirring 100 parts by weight of water and 20-40 parts by weight of fireproof flame retardant to prepare fireproof flame-retardant penetrating fluid for later use;
(6) uniformly spraying or coating fireproof flame-retardant penetrating fluid on two surfaces of the plate core, wherein the dosage of the fireproof penetrating fluid on each surface is 0.2 Kg;
(7) sending the board core with the fireproof flame-retardant penetrating fluid sprayed on the two surfaces into a drying room for baking at the baking temperature of 40-60 ℃ for 6-12 hours, and then cooling and shaping;
(8) preparing an adhesive B: fully and uniformly stirring 100 parts by weight of urea-formaldehyde resin adhesive, 30 parts by weight of fireproof flame retardant, 25 parts by weight of flour and 3 parts by weight of aldehyde removing agent to prepare adhesive B for later use;
(9) coating adhesive B on the front and back surfaces of the plate core with fireproof flame-retardant penetrating fluid sprayed on the two surfaces, wherein the coating amount is 1.5Kg, covering single plates on the front and back surfaces of the plate core, and storing for 3 hours, wherein the length direction of the single plates is vertical to the length direction of the laths;
(10) putting the stored plate blank into a prepressing machine for prepressing, wherein the prepressing pressure is 10MPa, the prepressing time is 30 minutes, and then, sending the plate blank into a hot press for hot pressing, the hot pressing pressure is 12MPa, the hot pressing time is 12 minutes, and the temperature is 120 ℃;
(11) adopting a sander to sand and flatten the front and back surfaces of the plate blank, then coating adhesive B with the coating amount of 1.3Kg, adhering decorative plates on the front and back surfaces of the plate blank, and hot-pressing at the temperature of 118 ℃ and the pressure of 9MPa for 7 minutes;
(12) and (5) after hot pressing, radiating for 10 hours, cooling and shaping to obtain a finished product.
In this embodiment, the fire retardant in the adhesive a, the fire retardant penetrating fluid, and the adhesive B is an intumescent fire retardant.
After the core-board of the embodiment is cooled and shaped, the detection shows that the fireproof flame-retardant grade reaches B1 grade (flame-retardant), and the national standard GB8624 (furniture in Table 5); the fireproof flame-retardant plate passes an oxygen welding gun flame-out test: after the flaming is carried out for 30 seconds, an oxygen welding gun is closed to stop the flaming, the flame of the finished plate is extinguished within 3 seconds, the carbonization area is 12cm2, after the flaming is carried out for 60 seconds, the gas welding gun is closed to stop the flaming, the flame of the finished plate is extinguished within 3 seconds, and the carbonization area is about 16cm 2; the environmental protection grade reaches E1 grade (0.429); the dip peel (strength) was 100%; the water content was 9.55%. The results of the measurements are shown in the following table:
it is intended that the invention not be limited to the particular embodiments disclosed, and that modifications and other embodiments are intended to be included within the scope of the appended claims. Although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.
Claims (8)
1. A preparation method of a fireproof flame-retardant environment-friendly core-board made of fir wood is characterized by comprising the following steps:
(1) sawing the fir into strip-shaped battens, and baking the battens in a drying room to enable the water content of the battens to be within 14%;
(2) the two ends of the lath are combed by a combing machine, and then the lath is butted into a required length;
(3) preparing an adhesive A: fully and uniformly stirring 100 parts by weight of urea-formaldehyde resin adhesive, 20-40 parts by weight of fireproof flame retardant and 20-30 parts by weight of flour to prepare adhesive A for later use;
(4) coating adhesive A on the butted side surfaces of the battens, conveying the batten assembly into a four-side press for pressing after the batten assembly is formed into a required width, and ventilating, cooling and shaping after pressure relief to form a plate core;
(5) preparing fireproof flame-retardant penetrating fluid: fully and uniformly stirring 100 parts by weight of water and 20-40 parts by weight of fireproof flame retardant to prepare fireproof flame-retardant penetrating fluid for later use;
(6) uniformly spraying or coating fireproof flame-retardant penetrating fluid on two surfaces of the plate core, wherein the using amount of the fireproof penetrating fluid is 0.06-0.08 Kg/m 2;
(7) sending the board core with the fireproof flame-retardant penetrating fluid sprayed on the two surfaces into a drying room for baking at the baking temperature of 40-60 ℃ for 6-12 hours, and then cooling and shaping;
(8) slotting the front and back surfaces of the plate core, wherein the width of the slotting is 1-3 mm, the depth of the slotting is 2-4 mm, the distance between every two adjacent slots is 20-40 mm, and an adhesive A is filled in the slots;
(9) preparing an adhesive B: fully and uniformly stirring 100 parts by weight of urea-formaldehyde resin adhesive, 30 parts by weight of fireproof flame retardant, 25 parts by weight of flour and 3 parts by weight of aldehyde removing agent to prepare adhesive B for later use;
(10) coating adhesive B on the front and back surfaces of the board core, wherein the coating amount is 0.45-0.55 Kg/m2, covering single boards on the front and back surfaces of the board core, and then storing for 3 hours;
(11) putting the stored plate blank into a prepress for prepressing, and then sending the plate blank into a hot press for hot pressing;
(12) sanding the front and back plate surfaces of the plate blank by using a sander, then coating adhesive B with the coating amount of 0.4-0.45 Kg/m2, attaching veneer boards on the front and back surfaces of the plate blank, and hot-pressing;
(13) and (5) after hot pressing, radiating for 10 hours, cooling and shaping to obtain a finished product.
2. The method for preparing the fireproof, flame-retardant and environment-friendly fir-core blockboard as claimed in claim 1, wherein the method comprises the following steps: the length of the batten is 200 mm-800 mm, the width is 30 mm-70 mm wide, and the thickness is 8 mm-15 mm.
3. The method for preparing the fireproof, flame-retardant and environment-friendly fir-core blockboard as claimed in claim 1, wherein the method comprises the following steps: the fireproof flame retardant in the adhesive A, the fireproof flame-retardant penetrating fluid and the adhesive B is an intumescent flame retardant.
4. The method for preparing the fireproof, flame-retardant and environment-friendly fir-core blockboard as claimed in claim 1, wherein the method comprises the following steps: in the step (4), the positive pressure is 3MPa, the lateral pressure is 8MPa, the temperature is 135 ℃, and the time is 120 seconds.
5. The method for preparing the fireproof, flame-retardant and environment-friendly fir-core blockboard as claimed in claim 1, wherein the method comprises the following steps: and (9) the length direction of the single plate is vertical to the length direction of the lath.
6. The method for preparing the fireproof, flame-retardant and environment-friendly fir-core blockboard as claimed in claim 1, wherein the method comprises the following steps: in the step (10), the pre-pressing pressure is 10MPa, the time is 30 minutes, the hot-pressing pressure is 12MPa, the time is 12 minutes, and the temperature is 120 ℃.
7. The method for preparing the fireproof, flame-retardant and environment-friendly fir-core blockboard as claimed in claim 1, wherein the method comprises the following steps: in the step (11), the hot-pressing temperature of the veneer is 118 ℃, the pressure is 9MPa, and the time is 7 minutes.
8. The fire-retardant environment-friendly fir-core blockboard prepared by the preparation method according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010483929.XA CN111571736A (en) | 2020-06-01 | 2020-06-01 | Fireproof flame-retardant environment-friendly core-board with fir core and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010483929.XA CN111571736A (en) | 2020-06-01 | 2020-06-01 | Fireproof flame-retardant environment-friendly core-board with fir core and preparation method thereof |
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| CN111571736A true CN111571736A (en) | 2020-08-25 |
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| CN202010483929.XA Pending CN111571736A (en) | 2020-06-01 | 2020-06-01 | Fireproof flame-retardant environment-friendly core-board with fir core and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116512364A (en) * | 2023-02-24 | 2023-08-01 | 湖北华盛新人造板有限公司 | Production process of fir veneer |
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| US20090297780A1 (en) * | 2009-06-03 | 2009-12-03 | Nia Chiou Yiu Industrial Co., Ltd. | Water-proof wood board |
| CN102198677A (en) * | 2011-05-09 | 2011-09-28 | 上海荷雨木业有限公司 | Preparation method of flame-retardant core-board |
| CN102514054A (en) * | 2011-12-29 | 2012-06-27 | 福建农林大学 | Processing method for manufacturing laminated wood board core board from spruce branch tips and laminated wood board |
| CN109837041A (en) * | 2019-02-22 | 2019-06-04 | 东莞市宏晟木业有限公司 | A kind of manufacturing process of fire retarding wood protection glue and fire-proof plate |
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2020
- 2020-06-01 CN CN202010483929.XA patent/CN111571736A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08332602A (en) * | 1995-04-01 | 1996-12-17 | Jiyuuken Sangyo:Kk | Laminated material |
| CN101513745A (en) * | 2009-04-03 | 2009-08-26 | 黑龙江省尚志国有林场管理局 | Preparation method for composite inflaming retarding core-board |
| US20090297780A1 (en) * | 2009-06-03 | 2009-12-03 | Nia Chiou Yiu Industrial Co., Ltd. | Water-proof wood board |
| CN102198677A (en) * | 2011-05-09 | 2011-09-28 | 上海荷雨木业有限公司 | Preparation method of flame-retardant core-board |
| CN102514054A (en) * | 2011-12-29 | 2012-06-27 | 福建农林大学 | Processing method for manufacturing laminated wood board core board from spruce branch tips and laminated wood board |
| CN109837041A (en) * | 2019-02-22 | 2019-06-04 | 东莞市宏晟木业有限公司 | A kind of manufacturing process of fire retarding wood protection glue and fire-proof plate |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116512364A (en) * | 2023-02-24 | 2023-08-01 | 湖北华盛新人造板有限公司 | Production process of fir veneer |
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Application publication date: 20200825 |