CN115785690A - Building waste flame-retardant composite material and preparation method thereof - Google Patents
Building waste flame-retardant composite material and preparation method thereof Download PDFInfo
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- CN115785690A CN115785690A CN202211543347.1A CN202211543347A CN115785690A CN 115785690 A CN115785690 A CN 115785690A CN 202211543347 A CN202211543347 A CN 202211543347A CN 115785690 A CN115785690 A CN 115785690A
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- construction waste
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- retardant
- waste
- composite material
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- 239000002699 waste material Substances 0.000 title claims abstract description 86
- 239000003063 flame retardant Substances 0.000 title claims abstract description 73
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 title claims abstract description 68
- 239000002131 composite material Substances 0.000 title claims abstract description 35
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 238000010276 construction Methods 0.000 claims abstract description 54
- 238000002156 mixing Methods 0.000 claims abstract description 23
- 229920002873 Polyethylenimine Polymers 0.000 claims abstract description 22
- 239000000203 mixture Substances 0.000 claims abstract description 22
- 238000004513 sizing Methods 0.000 claims abstract description 20
- 239000000853 adhesive Substances 0.000 claims abstract description 17
- 230000001070 adhesive effect Effects 0.000 claims abstract description 17
- 238000001035 drying Methods 0.000 claims abstract description 17
- IMQLKJBTEOYOSI-GPIVLXJGSA-N Inositol-hexakisphosphate Chemical compound OP(O)(=O)O[C@H]1[C@H](OP(O)(O)=O)[C@@H](OP(O)(O)=O)[C@H](OP(O)(O)=O)[C@H](OP(O)(O)=O)[C@@H]1OP(O)(O)=O IMQLKJBTEOYOSI-GPIVLXJGSA-N 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims description 17
- 239000011259 mixed solution Substances 0.000 claims description 11
- 229940068041 phytic acid Drugs 0.000 claims description 10
- 239000000467 phytic acid Substances 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 239000000243 solution Substances 0.000 claims description 9
- 239000002023 wood Substances 0.000 claims description 9
- 238000003756 stirring Methods 0.000 claims description 7
- 238000007731 hot pressing Methods 0.000 claims description 5
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 4
- 229920001568 phenolic resin Polymers 0.000 claims description 4
- 239000005011 phenolic resin Substances 0.000 claims description 4
- 238000004026 adhesive bonding Methods 0.000 claims description 3
- IMQLKJBTEOYOSI-UHFFFAOYSA-N Phytic acid Natural products OP(O)(=O)OC1C(OP(O)(O)=O)C(OP(O)(O)=O)C(OP(O)(O)=O)C(OP(O)(O)=O)C1OP(O)(O)=O IMQLKJBTEOYOSI-UHFFFAOYSA-N 0.000 claims 2
- 235000002949 phytic acid Nutrition 0.000 claims 2
- 229920001807 Urea-formaldehyde Polymers 0.000 claims 1
- GZCGUPFRVQAUEE-SLPGGIOYSA-N aldehydo-D-glucose Chemical group OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C=O GZCGUPFRVQAUEE-SLPGGIOYSA-N 0.000 claims 1
- 239000003292 glue Substances 0.000 claims 1
- 239000012943 hotmelt Substances 0.000 claims 1
- 239000012948 isocyanate Substances 0.000 claims 1
- 150000002513 isocyanates Chemical class 0.000 claims 1
- 238000000465 moulding Methods 0.000 claims 1
- 239000002245 particle Substances 0.000 claims 1
- 239000004033 plastic Substances 0.000 claims 1
- 229920003023 plastic Polymers 0.000 claims 1
- 229920002635 polyurethane Polymers 0.000 claims 1
- 239000004814 polyurethane Substances 0.000 claims 1
- 239000002994 raw material Substances 0.000 claims 1
- 238000005507 spraying Methods 0.000 claims 1
- 238000011161 development Methods 0.000 abstract description 5
- 238000004064 recycling Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 239000000123 paper Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 229920000877 Melamine resin Polymers 0.000 description 1
- 229920000388 Polyphosphate Polymers 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 229910001377 aluminum hypophosphite Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000011094 fiberboard Substances 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 239000001205 polyphosphate Substances 0.000 description 1
- 235000011176 polyphosphates Nutrition 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a building waste flame-retardant composite material and a preparation method thereof, belonging to the field of green and environment-friendly functional composite materials. Uniformly mixing a certain mass of construction waste with a phytic acid solution with the mass concentration of 2-20%, and drying for later use; 5-20 (calculated by the mass of the oven-dried construction waste) of adhesive with the mass concentration of 2% -20% is uniformly mixed with the polyethyleneimine solution, and the mixture of the construction waste and phytic acid solution is uniformly mixed to obtain the flame-retardant sizing construction waste which is dried for later use. The flame-retardant composite material prepared by the method can effectively improve the flame-retardant property of the composite material, the prepared composite process is simple, the operation is convenient, the problem of poor flame-retardant property of the traditional composite material of the construction waste is solved, and the environment-friendly and sustainable-development flame-retardant composite material of the construction waste is prepared.
Description
Technical Field
The invention relates to the field of composite materials, in particular to a building waste flame-retardant composite material and a preparation method thereof.
Background
Along with the increasing demand of people for good quality of life, the demand of wood products is increasing day by day, the quality requirement of the wood products is higher and higher, the condition of wood resource shortage is more obvious, and the contradiction between wood supply and demand is increased day by day. The realization of the efficient utilization of limited wood resources is an urgent problem to be solved in the wood processing industry. The recycling of the construction waste is imperative, the recycling of the construction waste is not only related to the sustainable development of the construction industry, but also has a decisive influence on the success or failure of the ecological environment protection, and has very important significance on realizing the targets of carbon neutralization and carbon peak-reaching.
The flame-retardant wood-based composite material is mainly prepared by the methods of flame retardant mixing treatment, impregnation treatment, flame retardant impregnated paper veneering and the like (the influence of melamine polyphosphate/aluminum hypophosphite on the flame retardance and the mechanical property of a high-density fiberboard is reported, 2021, 35 (16): 16166-16171; the preparation technology research of the flame-retardant impregnated paper veneered artificial board is 2017, 24 (7): 7-16). CN106938488A discloses a method for uniformly mixing wood shavings, sawdust and high-flame-retardant rubber powder and uniformly coating fused high-flame-retardant rubber powder between a surface plate and a core plate to prepare a high-flame-retardant artificial board. In addition, CN106938488a announces a method for preparing a surface flame-retardant artificial board by roll-coating a transparent flame-retardant adhesive layer on the surface of the artificial board. Above two patents all need to mix fire retardant and gluing agent and coat in the panel surface, lead to the fire retardant low-usage. In addition, the mechanical property of the flame-retardant artificial board prepared by the method is reduced along with the increase of the addition amount of the flame retardant, and the popularization and application of the flame-retardant artificial board are seriously limited. Therefore, aiming at the defect of poor flame retardant property of the existing construction waste composite material, the invention prepares the construction waste flame retardant composite material by selecting and adding the flame retardant in an environment-friendly and sustainable development manner, and aims to provide technical support for recycling the construction waste.
Therefore, the flame-retardant composite material made of the building waste and the preparation method thereof are provided for solving the problems.
Disclosure of Invention
The invention aims to overcome the defect of poor flame retardant property of a construction waste composite material, and provides a construction waste flame retardant composite material and a preparation method thereof through the use of a green environment-friendly and sustainable development flame retardant, so as to improve the flame retardant property of the construction waste composite material, improve the utilization rate of the flame retardant and construction waste, and obtain the flame retardant construction waste composite material with excellent flame retardant property, environmental protection and sustainable development.
In order to achieve the purpose, the invention adopts the following technical scheme:
mixing a phytic acid solution with the mass concentration of 2-20% with the building waste, then placing the mixture into a stirrer to be stirred for 10-60 min to obtain a uniform building waste-phytic acid mixed material, and then placing the mixed material into a drying oven with the temperature of 50-80 ℃ to be dried to reduce the water content of the mixed material to 11-15%.
Mixing an adhesive with a mass ratio of 100 to 20 (calculated by the mass of the absolutely dry construction waste) and a polyethyleneimine solution with a mass concentration of 2 to 20 percent (prepared by deionized water), and then placing the mixture into a stirrer to stir for 10 to 60min to obtain a uniformly dispersed adhesive-polyethyleneimine mixed solution; mixing the adhesive-polyethyleneimine mixed solution with a building waste-phytic acid mixed material, placing the mixture into a stirrer, and stirring for 10-60 min to obtain uniform flame-retardant treated adhesive-applied building waste; then the mixture is placed in an oven with the temperature of 50-80 ℃ for drying treatment, so that the water content is reduced to 11% -15%.
Uniformly paving the flame-retardant sizing building waste in a forming frame, hot-pressing for 5-20 min by a hot press at the temperature of 110-160 ℃ and under the pressure of 5-20 MPa, and demoulding to obtain the flame-retardant building waste composite material.
The invention has the advantages that:
according to the building waste flame-retardant composite material and the preparation method thereof, the adhesive-polyethyleneimine mixed solution is prepared by adopting a mechanical blending method, so that the problem that polyethyleneimine is difficult to be uniformly mixed with building waste due to high viscosity is solved, the mixing uniformity of polyethyleneimine and the building waste can be effectively improved, the gluing uniformity of glued building waste is improved, the utilization rate of a flame retardant and the building waste is improved, and the operation process is simplified.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Mixing a phytic acid solution with the mass concentration of 2% with the building waste, placing the mixture in a stirrer to be stirred for 10min to obtain a uniform building waste-phytic acid mixed material, and then placing the mixed material in a drying oven with the temperature of 50 ℃ to be dried to reduce the water content of the mixed material to 11% -15%.
Mixing a phenolic resin adhesive with a mass ratio of 100 (calculated by the mass of the absolute dry construction waste) to 5 (calculated by the mass of the absolute dry construction waste) with a polyethyleneimine solution with a mass concentration of 2%, and then placing the mixture in a stirrer to stir for 10min to obtain a uniformly dispersed adhesive-polyethyleneimine mixed solution; mixing the adhesive-polyethyleneimine mixed solution with the building waste-phytic acid mixed material, and placing the mixture into a stirrer to be stirred for 10min to obtain uniform flame-retardant treated sizing building waste; and (3) drying the sizing construction waste subjected to flame retardant treatment in a drying oven at the temperature of 50 ℃ to reduce the water content to 11-15%.
Uniformly paving the sizing construction waste subjected to flame-retardant treatment in a forming frame, hot-pressing for 10min by a hot press at 110 ℃ and 5MPa, and demolding to obtain the construction waste flame-retardant composite material with the size parameters of 300mm multiplied by 10 mm.
The flame retardant property and mechanical property of the building waste flame retardant composite material prepared by the embodiment have the following specific data:
example two
Mixing a phytic acid solution with the mass concentration of 10% with the building waste, placing the mixture in a stirrer to be stirred for 30min to obtain a uniform building waste-phytic acid mixed material, and then placing the mixed material in a drying oven with the temperature of 70 ℃ to be dried to reduce the water content of the mixed material to 11% -15%.
Mixing a phenolic resin adhesive and a 10% polyethyleneimine solution in a mass concentration according to a mass ratio of 100; mixing the adhesive-polyethyleneimine mixed solution with the building waste-phytic acid mixed material, and placing the mixture into a stirrer to be stirred for 10min to obtain uniform flame-retardant treated sizing building waste; and (3) drying the sizing construction waste subjected to flame retardant treatment in a drying oven at the temperature of 70 ℃ to reduce the water content to 11-15%.
Uniformly paving the sizing construction waste subjected to flame-retardant treatment in a forming frame, hot-pressing for 15min by using a hot press at 150 ℃ under 10MPa, and demolding to obtain the flame-retardant composite material of the construction waste with the size parameters of 300mm multiplied by 10 mm.
The flame retardant property and mechanical property of the building waste flame retardant composite material prepared by the embodiment have the following specific data:
example three:
mixing a phytic acid solution with the mass concentration of 20% with the building waste, placing the mixture in a stirrer to be stirred for 60min to obtain a uniform building waste-phytic acid mixed material, and then placing the mixed material in a drying oven with the temperature of 80 ℃ to be dried to reduce the water content of the mixed material to 11% -15%.
Mixing a phenolic resin adhesive with a mass ratio of 100 to 20 (calculated by the mass of the absolute dry construction waste) with a polyethyleneimine solution with a mass concentration of 20%, and then placing the mixture in a stirrer to stir for 60min to obtain a uniformly dispersed adhesive-polyethyleneimine mixed solution; mixing the adhesive-polyethyleneimine mixed solution with the building waste-phytic acid mixed material, and placing the mixture into a stirrer to be stirred for 60min to obtain uniform flame-retardant treated sizing building waste; and (3) drying the sizing construction waste subjected to flame retardant treatment in a drying oven at the temperature of 80 ℃ to reduce the water content to 11-15%.
Uniformly paving the sizing construction waste subjected to flame-retardant treatment in a forming frame, hot-pressing for 20min by a hot press at 160 ℃ and 20MPa, and demolding to obtain the flame-retardant composite material of the construction waste with the size parameters of 300mm multiplied by 10 mm.
The flame retardant property and mechanical property of the building waste flame retardant composite material prepared by the embodiment have the following specific data:
the foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.
Claims (5)
1. A construction waste flame-retardant composite material and a preparation method thereof are characterized in that: the raw materials used by the building waste composite material comprise building waste, phytic acid solution, polyethyleneimine solution and adhesive; the construction waste is uniformly mixed with a phytic acid solution, then uniformly mixed with a mixed solution of an adhesive and polyethyleneimine, and dried to obtain the flame-retardant sizing construction waste, and the flame-retardant sizing construction waste is formed by uniformly paving, hot press forming and gluing, wherein the construction waste is particles of construction waste wood and plastics, the mass concentration of the phytic acid solution is 2% -20%, the mass concentration of the polyethyleneimine solution is 2% -20%, the mass ratio of the construction waste to the adhesive is 100-5 (calculated by the mass of the oven-dried construction waste), and the adhesive is urea-formaldehyde resin adhesive, phenolic resin adhesive, isocyanate adhesive and polyurethane hot-melt glue-spraying adhesive.
2. The method for preparing the building waste flame-retardant composite material according to claim 1, wherein the method comprises the following steps: the method comprises the following steps:
s1, flame-retardant treatment and sizing treatment of construction waste: mixing a phytic acid solution with the mass concentration of 2-20% with the construction waste, uniformly stirring the mixture by a stirrer, and drying the mixture for later use; mixing an adhesive with a mass ratio of 100 to 5-20 (calculated by the mass of the oven-dried construction waste) with a polyethyleneimine solution with a mass concentration of 2-20%, uniformly stirring the mixture by a stirrer, mixing the mixture with the construction waste treated by the phytic acid solution, placing the mixture in the stirrer, uniformly stirring the mixture to obtain the flame-retardant sizing construction waste, and drying the flame-retardant sizing construction waste for later use.
S2, hot press molding of the construction waste composite material: uniformly paving the sizing building waste subjected to flame-retardant treatment in a forming frame, hot-pressing for 5-20 min at the temperature of 110-160 ℃ and under the pressure of 5-20 MPa by using a hot press, and demolding to obtain the flame-retardant composite material of the building waste.
3. The construction waste flame retardant composite material and the preparation method thereof according to claim 2, characterized in that: the flame-retardant treatment and glue application treatment of the building waste refer to the steps of uniformly mixing the building waste with a phytic acid solution, and then uniformly mixing the building waste with a mixed solution of an adhesive and polyethyleneimine, wherein the mass concentration of the phytic acid solution is 2-20%, the mass concentration of the polyethyleneimine solution is 2-20%, and the mass ratio of the building waste to the adhesive is (based on the mass of the oven-dried building waste) 5-20.
4. The construction waste flame retardant composite material and the preparation method thereof according to claim 2, characterized in that: the mixture of the construction waste and the phytic acid solution, the mixed solution of the adhesive and the polyethyleneimine and the sizing construction waste subjected to flame retardant treatment are placed in a stirrer to be stirred for 10-60 min so as to ensure the mixing uniformity of the materials.
5. The construction waste flame retardant composite material and the preparation method thereof according to claim 2, characterized in that: the drying treatment refers to that the mixture of the construction waste and the phytic acid and the sizing construction waste subjected to the flame retardant treatment are placed in a drying oven at the temperature of 50-80 ℃ for drying treatment, so that the water content of the mixture of the construction waste and the phytic acid and the sizing construction waste subjected to the flame retardant treatment is reduced to 11% -15%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211543347.1A CN115785690A (en) | 2022-12-02 | 2022-12-02 | Building waste flame-retardant composite material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211543347.1A CN115785690A (en) | 2022-12-02 | 2022-12-02 | Building waste flame-retardant composite material and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN115785690A true CN115785690A (en) | 2023-03-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211543347.1A Pending CN115785690A (en) | 2022-12-02 | 2022-12-02 | Building waste flame-retardant composite material and preparation method thereof |
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| Country | Link |
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| CN (1) | CN115785690A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB633441A (en) * | 1947-06-11 | 1949-12-19 | Andrew Mclean | Improvements in or relating to the flame-proofing of combustible materials |
| CN103951920A (en) * | 2014-05-07 | 2014-07-30 | 浙江理工大学 | Preparation method of polyelectrolyte complex flame-retardant polyvinyl alcohol containing phosphorus and nitrogen |
| CN108943307A (en) * | 2018-07-04 | 2018-12-07 | 西南林业大学 | Biomass particieboard and preparation method thereof |
| CN110229539A (en) * | 2019-07-10 | 2019-09-13 | 南京林业大学 | A kind of preparation method synchronizing fire-retardant toughened wood plastic composite |
| CN111805678A (en) * | 2020-07-23 | 2020-10-23 | 南京林业大学 | Preparation method of flame-retardant shaving board |
| CN113956723A (en) * | 2021-09-06 | 2022-01-21 | 浙江农林大学 | Preparation method of wood surface layer-by-layer self-assembly flame-retardant coating based on two-dimensional material reinforcement |
-
2022
- 2022-12-02 CN CN202211543347.1A patent/CN115785690A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB633441A (en) * | 1947-06-11 | 1949-12-19 | Andrew Mclean | Improvements in or relating to the flame-proofing of combustible materials |
| CN103951920A (en) * | 2014-05-07 | 2014-07-30 | 浙江理工大学 | Preparation method of polyelectrolyte complex flame-retardant polyvinyl alcohol containing phosphorus and nitrogen |
| CN108943307A (en) * | 2018-07-04 | 2018-12-07 | 西南林业大学 | Biomass particieboard and preparation method thereof |
| CN110229539A (en) * | 2019-07-10 | 2019-09-13 | 南京林业大学 | A kind of preparation method synchronizing fire-retardant toughened wood plastic composite |
| CN111805678A (en) * | 2020-07-23 | 2020-10-23 | 南京林业大学 | Preparation method of flame-retardant shaving board |
| CN113956723A (en) * | 2021-09-06 | 2022-01-21 | 浙江农林大学 | Preparation method of wood surface layer-by-layer self-assembly flame-retardant coating based on two-dimensional material reinforcement |
Non-Patent Citations (1)
| Title |
|---|
| 卢洪波等主编: "《建筑垃圾处理与处置》", vol. 1, 河南科学技术出版社, pages: 2 - 3 * |
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