CN115895554A - Full-biomass adhesive based on maleic anhydride and glycerol and preparation method and application thereof - Google Patents
Full-biomass adhesive based on maleic anhydride and glycerol and preparation method and application thereof Download PDFInfo
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- CN115895554A CN115895554A CN202211461495.9A CN202211461495A CN115895554A CN 115895554 A CN115895554 A CN 115895554A CN 202211461495 A CN202211461495 A CN 202211461495A CN 115895554 A CN115895554 A CN 115895554A
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- maleic anhydride
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- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 title claims abstract description 152
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 title claims abstract description 49
- 239000000853 adhesive Substances 0.000 title claims abstract description 41
- 230000001070 adhesive effect Effects 0.000 title claims abstract description 41
- 239000002028 Biomass Substances 0.000 title claims abstract description 32
- 238000002360 preparation method Methods 0.000 title abstract description 20
- 229920005862 polyol Polymers 0.000 claims abstract description 27
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
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- 238000004026 adhesive bonding Methods 0.000 claims abstract description 7
- 239000002253 acid Substances 0.000 claims abstract 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract 3
- 238000002156 mixing Methods 0.000 claims description 36
- 238000006243 chemical reaction Methods 0.000 claims description 14
- 239000008367 deionised water Substances 0.000 claims description 11
- 229910021641 deionized water Inorganic materials 0.000 claims description 11
- 238000007731 hot pressing Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- 238000001035 drying Methods 0.000 claims description 4
- 241000219000 Populus Species 0.000 claims description 2
- 230000032683 aging Effects 0.000 claims description 2
- 238000004513 sizing Methods 0.000 claims description 2
- 230000035484 reaction time Effects 0.000 claims 3
- 238000001816 cooling Methods 0.000 claims 1
- 239000007787 solid Substances 0.000 claims 1
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 abstract description 15
- 229920000587 hyperbranched polymer Polymers 0.000 abstract description 2
- 238000006068 polycondensation reaction Methods 0.000 abstract 2
- 239000000126 substance Substances 0.000 abstract 1
- 235000011187 glycerol Nutrition 0.000 description 40
- 238000003756 stirring Methods 0.000 description 30
- 239000000203 mixture Substances 0.000 description 20
- 238000005303 weighing Methods 0.000 description 20
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- BJEPYKJPYRNKOW-REOHCLBHSA-N (S)-malic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O BJEPYKJPYRNKOW-REOHCLBHSA-N 0.000 description 3
- BJEPYKJPYRNKOW-UHFFFAOYSA-N alpha-hydroxysuccinic acid Natural products OC(=O)C(O)CC(O)=O BJEPYKJPYRNKOW-UHFFFAOYSA-N 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000001630 malic acid Substances 0.000 description 3
- 235000011090 malic acid Nutrition 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 229920001807 Urea-formaldehyde Polymers 0.000 description 2
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 235000014113 dietary fatty acids Nutrition 0.000 description 2
- 229930195729 fatty acid Natural products 0.000 description 2
- 239000000194 fatty acid Substances 0.000 description 2
- 150000004665 fatty acids Chemical class 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 description 2
- 238000002791 soaking Methods 0.000 description 2
- DNIAPMSPPWPWGF-VKHMYHEASA-N (+)-propylene glycol Chemical compound C[C@H](O)CO DNIAPMSPPWPWGF-VKHMYHEASA-N 0.000 description 1
- DNIAPMSPPWPWGF-GSVOUGTGSA-N (R)-(-)-Propylene glycol Chemical compound C[C@@H](O)CO DNIAPMSPPWPWGF-GSVOUGTGSA-N 0.000 description 1
- YPFDHNVEDLHUCE-UHFFFAOYSA-N 1,3-propanediol Substances OCCCO YPFDHNVEDLHUCE-UHFFFAOYSA-N 0.000 description 1
- 229940035437 1,3-propanediol Drugs 0.000 description 1
- JAHNSTQSQJOJLO-UHFFFAOYSA-N 2-(3-fluorophenyl)-1h-imidazole Chemical compound FC1=CC=CC(C=2NC=CN=2)=C1 JAHNSTQSQJOJLO-UHFFFAOYSA-N 0.000 description 1
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- 240000000171 Crataegus monogyna Species 0.000 description 1
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- 235000009840 Crataegus x incaedua Nutrition 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 241000220225 Malus Species 0.000 description 1
- 235000011430 Malus pumila Nutrition 0.000 description 1
- 235000015103 Malus silvestris Nutrition 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 150000008064 anhydrides Chemical class 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- KDYFGRWQOYBRFD-NUQCWPJISA-N butanedioic acid Chemical compound O[14C](=O)CC[14C](O)=O KDYFGRWQOYBRFD-NUQCWPJISA-N 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 231100000357 carcinogen Toxicity 0.000 description 1
- 239000003183 carcinogenic agent Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
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- 230000018044 dehydration Effects 0.000 description 1
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- 239000003925 fat Substances 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- HANVTCGOAROXMV-UHFFFAOYSA-N formaldehyde;1,3,5-triazine-2,4,6-triamine;urea Chemical compound O=C.NC(N)=O.NC1=NC(N)=NC(N)=N1 HANVTCGOAROXMV-UHFFFAOYSA-N 0.000 description 1
- 235000011389 fruit/vegetable juice Nutrition 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000002085 irritant Substances 0.000 description 1
- 231100000021 irritant Toxicity 0.000 description 1
- 231100001032 irritation of the eye Toxicity 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 1
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 description 1
- DNIAPMSPPWPWGF-UHFFFAOYSA-N monopropylene glycol Natural products CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
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- 239000003921 oil Substances 0.000 description 1
- 235000019198 oils Nutrition 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- ODGAOXROABLFNM-UHFFFAOYSA-N polynoxylin Chemical compound O=C.NC(N)=O ODGAOXROABLFNM-UHFFFAOYSA-N 0.000 description 1
- 229920000166 polytrimethylene carbonate Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 229960004063 propylene glycol Drugs 0.000 description 1
- 235000013772 propylene glycol Nutrition 0.000 description 1
- 206010039083 rhinitis Diseases 0.000 description 1
- 229940116353 sebacic acid Drugs 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
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- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
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Images
Abstract
The invention belongs to the technical field of adhesive preparation, and particularly relates to a full biomass adhesive of maleic anhydride and glycerol, a preparation method and an application thereof, wherein the preparation method comprises the following steps: (1) maleic anhydride and glycerol in a molar ratio of 1:1 preparing hyperbranched polyol; (2) maleic anhydride and glycerol in a molar ratio of 3:1 preparing hyperbranched polyatomic acid; (3) And (3) performing polycondensation reaction on the hyperbranched polyatomic alcohol prepared in the step (1) and the hyperbranched polyatomic acid prepared in the step (2) according to a certain mole to obtain the hyperbranched polyatomic alcohol. The invention utilizes hyperbranched polymer to carry out polycondensation, the adhesive bonding strength and the water resistance performance are excellent, the dry strength of the plywood is more than 2.0MPa, and the strength of the plywood after being soaked in hot water at 63 ℃ and hot water at 93 ℃ is more than 1.0 MPa. The adhesive is prepared from biomass, so that the use of formaldehyde is avoided, the biomass adhesive can be used for replacing the adhesive from petrochemical industry, and the development of the biomass chemical industry is promoted to a certain extent.
Description
Technical Field
The invention relates to a full-biomass adhesive of maleic anhydride and glycerol, a preparation method thereof and application thereof in preparation of a plywood, and belongs to the field of adhesives.
Background
Currently, urea formaldehyde, melamine and melamine-urea formaldehyde resins remain the most commonly used adhesives in wood composites. Formaldehyde emissions from plywood and furniture are inevitable because formaldehyde is present in free form in wood composite products, especially when these products are used indoors, causing serious indoor environmental pollution problems. Formaldehyde is a known irritant and carcinogen, causing adverse effects (such as rhinitis and irritation of the eyes, nose and throat, etc.). Therefore, the development of biomass adhesives is driven by the harmful effects of formaldehyde on health. Renewable biomass materials that can be used to make macromolecules have been the focus of the polymer industry over the last decade. A large number of diacids and diols useful in polyester synthesis, such as succinic acid, itaconic acid, sebacic acid, 1, 2-propanediol, 1, 3-propanediol, and 1, 4-butanediol, are widely available from plants. Another important product is vegetable oil, in which the components glycerol and fatty acid can be used either directly for polyester synthesis or converted into materials such as polyurethanes and epoxy-based polymers. Therefore, the biomass adhesive which is non-toxic and green can be developed from the biomass raw materials and the chemical synthesis of the materials, and has profound significance to the wood adhesive industry.
Disclosure of Invention
The invention aims to provide a full-biomass adhesive with excellent bonding strength, which utilizes maleic anhydride and glycerol to form a hyperbranched polymer for manufacturing plywood and improving the bonding strength of the plywood.
The technical scheme of the invention is as follows:
the full biomass adhesive of maleic anhydride and glycerin consists of hyperbranched polyol and hyperbranched polyacids.
Further, the molar ratio of the hyperbranched polyol to the hyperbranched polyacids is 3.6-1.2.
The preparation method of the full biomass adhesive of maleic anhydride and glycerol comprises the following steps:
(1) Firstly, mixing maleic anhydride and glycerol (molar ratio is 1;
(2) Then, mixing maleic anhydride and glycerol (molar ratio 3;
(3) Finally, mixing the hyperbranched polyol obtained in the step (1) with the hyperbranched polyacid obtained in the step (2) according to a molar ratio of 3;
the invention also provides a three-layer plywood, which is characterized by being prepared by adopting the adhesive prepared by any one of claims 1 to 5, and comprising the following steps of:
a, drying: drying the poplar veneer until the water content is lower than 9%;
b, sizing: the adhesive of any one of claims 1 to 5 is used for double-sided gluing, and the single-sided gluing amount is 150g/m 2 Aging is not needed;
c, assembly: based on the vertical texture mode;
d, hot pressing: the hot pressing temperature is 200 ℃, the hot pressing pressure is 1.0MPa, and the hot pressing time is 5min.
Compared with the prior art, the invention has the advantages that:
the full biomass raw material is utilized, and the problem of volatilization of any toxic substances does not exist. To date, natural fats and oils remain the main raw material for the production of glycerol, with about 42% of natural glycerol coming from the by-products of the soap industry and 58% from fatty acid production. Maleic anhydride is also known as anhydromalic anhydride, which is obtained by dehydration of malic acid. The malic acid belongs to a product produced by fermentation, and the safety performance is guaranteed. Therefore, the demand in the international market is rapidly increasing. Malic acid is widely found in juices of immature hawthorn, apple and grape fruits. Meanwhile, in the synthesis process of the adhesive, no catalyst is added, and the obtained adhesive has good solubility. Curing agents are not required to be added during hot-pressing curing, and the hyperbranched compact cross-linked structure improves the binding force between the adhesive and a wood interface. Moreover, the waterproof adhesive bonding performance is good, and the prepared plywood can meet the requirements of practical application of the artificial board.
Drawings
FIG. 1 is a schematic illustration of the preparation of a hyperbranched polyol of the invention;
fig. 2 is a schematic diagram of the preparation of the all-biomass adhesive of the invention.
Detailed Description
For better understanding of the present invention, the technical solution of the present invention is described in detail below with specific examples, but the present invention is not limited thereto.
Example 1
The embodiment provides a preparation method of a full biomass adhesive based on maleic anhydride and glycerol, which comprises the following steps:
(1) Weighing 9.8g of maleic anhydride and 9.2g of glycerol at room temperature, mixing, and continuously stirring at 80 ℃ for reacting for 2 hours to obtain hyperbranched polyol;
(2) Weighing 9.8g of maleic anhydride and 3.07g of glycerol at room temperature, mixing, and continuously stirring at 80 ℃ for reacting for 1 hour to obtain hyperbranched polybasic acid;
(3) Mixing the prepared hyperbranched polyol and the polybasic acid, and continuously stirring and reacting for 2 hours at 130 ℃;
(4) After the reaction, the mixture was cooled to room temperature, and 17.6g of deionized water was added to completely dissolve the mixture.
Example 2
The embodiment provides a preparation method of a full biomass adhesive based on maleic anhydride and glycerol, which comprises the following steps:
(1) Weighing 9.8g of maleic anhydride and 9.2g of glycerol at room temperature, mixing, and continuously stirring at 80 ℃ for reacting for 2h to obtain hyperbranched polyol;
(2) Weighing 9.8g of maleic anhydride and 3.07g of glycerol at room temperature, mixing, and continuously stirring at 80 ℃ for reacting for 1h to obtain hyperbranched polybasic acid;
(3) Mixing the prepared hyperbranched polyol and the polyacid, and continuously stirring and reacting for 2 hours at 140 ℃;
(4) After the reaction, the mixture was cooled to room temperature, and 17.6g of deionized water was added to completely dissolve the mixture.
Example 3
The embodiment provides a preparation method of a full biomass adhesive based on maleic anhydride and glycerol, which comprises the following steps:
(1) Weighing 9.8g of maleic anhydride and 9.2g of glycerol at room temperature, mixing, and continuously stirring at 80 ℃ for reacting for 2h to obtain hyperbranched polyol;
(2) Weighing 9.8g of maleic anhydride and 3.07g of glycerol at room temperature, mixing, and continuously stirring at 80 ℃ for reacting for 1h to obtain hyperbranched polybasic acid;
(3) Mixing the prepared hyperbranched polyol and the polybasic acid, and continuously stirring and reacting for 2 hours at 150 ℃;
(4) After the reaction, the mixture was cooled to room temperature, and 17.6g of deionized water was added to completely dissolve the mixture.
Example 4
The embodiment provides a preparation method of a full biomass adhesive based on maleic anhydride and glycerol, which comprises the following steps:
(1) Weighing 9.8g of maleic anhydride and 9.2g of glycerol at room temperature, mixing, and continuously stirring at 80 ℃ for reacting for 2h to obtain hyperbranched polyol;
(2) Weighing 5.88g of maleic anhydride and 1.84g of glycerol at room temperature, mixing, and continuously stirring at 80 ℃ for reacting for 1h to obtain hyperbranched polyacids;
(3) Mixing the prepared hyperbranched polyol and the polybasic acid, and continuously stirring and reacting for 2 hours at the temperature of 140 ℃;
(4) After the reaction, the mixture was cooled to room temperature, and 15.17g of deionized water was added to dissolve the mixture completely.
Example 5
The embodiment provides a preparation method of a full biomass adhesive based on maleic anhydride and glycerol, which comprises the following steps:
(1) Weighing 9.8g of maleic anhydride and 9.2g of glycerol at room temperature, mixing, and continuously stirring at 80 ℃ for reacting for 2h to obtain hyperbranched polyol;
(2) Weighing 7.83g of maleic anhydride and 2.45g of glycerol at room temperature, mixing, and continuously stirring at 80 ℃ for reacting for 1h to obtain hyperbranched polyacids;
(3) Mixing the prepared hyperbranched polyol and the polyacid, and continuously stirring and reacting for 2 hours at 140 ℃;
(4) After the reaction, the mixture was cooled to room temperature, and 16.4g of deionized water was added to dissolve the mixture completely.
Example 6
The embodiment provides a preparation method of a full biomass adhesive based on maleic anhydride and glycerol, which comprises the following steps:
(1) Weighing 9.8g of maleic anhydride and 9.2g of glycerol at room temperature, mixing, and continuously stirring at 80 ℃ for reacting for 2h to obtain hyperbranched polyol;
(2) Weighing 11.76g of maleic anhydride and 3.68g of glycerol at room temperature, mixing, and continuously stirring at 80 ℃ for reacting for 1h to obtain hyperbranched polyacids;
(3) Mixing the prepared hyperbranched polyol and the polybasic acid, and continuously stirring and reacting for 2 hours at the temperature of 140 ℃;
(4) After the reaction, the mixture was cooled to room temperature, and 19.36g of deionized water was added to dissolve the mixture completely.
Example 7
The embodiment provides a preparation method of a full biomass adhesive based on maleic anhydride and glycerol, which comprises the following steps:
(1) Weighing 9.8g of maleic anhydride and 9.2g of glycerol at room temperature, mixing, and continuously stirring at 80 ℃ for reacting for 2h to obtain hyperbranched polyol;
(2) Weighing 9.8g of maleic anhydride and 3.07g of glycerol at room temperature, mixing, and continuously stirring at 80 ℃ for reacting for 1h to obtain hyperbranched polybasic acid;
(3) Mixing the prepared hyperbranched polyol and the polyacid, and continuously stirring and reacting for 1h at 140 ℃;
(4) After the reaction, the mixture was cooled to room temperature, and 17.6g of deionized water was added to completely dissolve the mixture.
Example 8
The embodiment provides a preparation method of a full biomass adhesive based on maleic anhydride and glycerol, which comprises the following steps:
(1) Weighing 9.8g of maleic anhydride and 9.2g of glycerol at room temperature, mixing, and continuously stirring at 80 ℃ for reacting for 2h to obtain hyperbranched polyol;
(2) Weighing 9.8g of maleic anhydride and 3.07g of glycerol at room temperature, mixing, and continuously stirring at 80 ℃ for reacting for 1h to obtain hyperbranched polybasic acid;
(3) Mixing the prepared hyperbranched polyol and the polyacid, and continuously stirring and reacting for 3 hours at 140 ℃;
(4) After the reaction, the mixture was cooled to room temperature, and 17.6g of deionized water was added to completely dissolve the mixture.
Example 9
The embodiment provides a preparation method of a full biomass adhesive based on maleic anhydride and glycerol, which comprises the following steps:
(1) Weighing 9.8g of maleic anhydride and 9.2g of glycerol at room temperature, mixing, and continuously stirring at 80 ℃ for reacting for 2 hours to obtain hyperbranched polyol;
(2) Weighing 9.8g of maleic anhydride and 3.07g of glycerol at room temperature, mixing, and continuously stirring at 80 ℃ for reacting for 1 hour to obtain hyperbranched polybasic acid;
(3) Mixing the prepared hyperbranched polyol and the polybasic acid, and continuously stirring and reacting for 4 hours at the temperature of 140 ℃;
(4) After the reaction, the mixture was cooled to room temperature, and 17.6g of deionized water was added to dissolve the mixture completely.
Example 10
The embodiment provides a preparation method of a full biomass adhesive based on maleic anhydride and glycerol, which comprises the following steps:
(1) Weighing 9.8g of maleic anhydride and 9.2g of glycerol at room temperature, mixing, and continuously stirring at 80 ℃ for reacting for 2h to obtain hyperbranched polyol;
(2) Weighing 9.8g of maleic anhydride and 3.07g of glycerol at room temperature, mixing, and continuously stirring at 80 ℃ for reacting for 1h to obtain hyperbranched polybasic acid;
(3) Mixing the prepared hyperbranched polyol and the polybasic acid, and continuously stirring and reacting for 5 hours at the temperature of 140 ℃;
(4) After the reaction, the mixture was cooled to room temperature, and 17.6g of deionized water was added to dissolve the mixture completely.
The test of the gluing strength was carried out according to the relevant requirements in the national standard GB/T17657-2013, by first sawing the sample to the same size (100 mm. Times.25 mm) and grooving, the glue layer portion area being 25mm. Times.25 mm. Soaking the materials in water bath at 63 + -3 deg.C and 93 + -3 deg.C for 3 hr, taking out, standing at room temperature for ten minutes, and testing bonding strength with electronic universal mechanical testing machine. The test results are shown in table 1:
table 1 properties of plywood made with different adhesives
| Group number | Dry shear strength/MPa | Wet strength/MPa after 3h hot water (63 ℃ C.) immersion | Soaking in boiling water (93 ℃) for 3h to obtain wet strength/MPa |
| Example 1 | 2.12 | 1.27 | 1.29 |
| Example 2 | 2.04 | 1.54 | 1.38 |
| Example 3 | 2.37 | 1.34 | 1.39 |
| Example 4 | 2.09 | 1.26 | 1.29 |
| Example 5 | 2.10 | 1.24 | 1.33 |
| Example 6 | 2.17 | 1.38 | 1.49 |
| Example 7 | 2.26 | 1.22 | 1.28 |
| Example 8 | 2.19 | 1.57 | 1.45 |
| Example 9 | 2.22 | 1.61 | 1.59 |
| Example 10 | 2.13 | 1.72 | 1.63 |
The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments. Any other substitutions, changes, combinations, and simplifications which do not depart from the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (6)
1. The full biomass adhesive based on maleic anhydride and glycerol is characterized by being prepared from hyperbranched polyol and hyperbranched polyatomic acid; the molar ratio of the hyperbranched polyatomic alcohol to the hyperbranched polyatomic acid is as follows: 3:0.6-1.2.
2. The method for preparing the full biomass adhesive of maleic anhydride and glycerol according to claim 1, which is characterized by comprising the following steps:
(1) Mixing maleic anhydride and glycerol according to a molar ratio of 1;
(2) Mixing maleic anhydride and glycerol according to a molar ratio of 3;
(3) Mixing the hyperbranched polyol obtained in the step (1) and the hyperbranched polyacid obtained in the step (2) according to a molar ratio of 3;
(4) And after the reaction is finished, cooling the product to room temperature, and adding deionized water according to 50-70% of solid content of the product to completely dissolve the product to obtain the full biomass adhesive.
3. The method for preparing the full biomass adhesive of maleic anhydride and glycerol according to claim 2, wherein the method comprises the following steps: in the step (1), the reaction temperature is 70-90 ℃ and the reaction time is 1-3 h.
4. The method for preparing the full biomass adhesive of maleic anhydride and glycerol according to claim 2, wherein the method comprises the following steps: in the step (2), the reaction temperature is 70-90 ℃ and the reaction time is 1-3 h.
5. The method for preparing the full biomass adhesive of maleic anhydride and glycerol according to claim 2, wherein the method comprises the following steps: in the step (3), the reaction temperature is 140 ℃ and the reaction time is 2h.
6. A three-ply plywood prepared using the adhesive prepared according to any one of claims 1 to 5, comprising the steps of:
a, drying: drying the poplar veneer until the water content is lower than 9%;
b, sizing: the adhesive of any one of claims 1 to 5 is used for double-sided gluing, and the single-sided gluing amount is 150g/m 2 Aging is not needed;
c, assembly: based on the vertical texture mode;
d, hot pressing: the hot pressing temperature is 200 ℃, the hot pressing pressure is 1.0MPa, and the hot pressing time is 5min.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211461495.9A CN115895554B (en) | 2022-11-17 | 2022-11-17 | Full biomass adhesive based on maleic anhydride and glycerol, and preparation method and application thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2256444A (en) * | 1938-11-28 | 1941-09-16 | Rosenblum Israel | Maleic anhydride-polyhydric alcohol-natural resin reaction products |
| CN109181612A (en) * | 2018-09-14 | 2019-01-11 | 齐鲁工业大学 | A kind of water resistance biology base adhesive and preparation method thereof |
| CN110964478A (en) * | 2019-12-02 | 2020-04-07 | 北京林业大学 | Hyperbranched polyester and borate modified high-strength anti-corrosion soybean protein adhesive and preparation method thereof |
| CN111675998A (en) * | 2020-07-03 | 2020-09-18 | 德华兔宝宝装饰新材股份有限公司 | Bean pulp adhesive for blockboard and preparation method thereof |
| CN114517072A (en) * | 2022-03-10 | 2022-05-20 | 天津元汇科技有限公司 | Water-soluble degradable biomass hyperbranched citric acid polyester adhesive and application thereof |
-
2022
- 2022-11-17 CN CN202211461495.9A patent/CN115895554B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2256444A (en) * | 1938-11-28 | 1941-09-16 | Rosenblum Israel | Maleic anhydride-polyhydric alcohol-natural resin reaction products |
| CN109181612A (en) * | 2018-09-14 | 2019-01-11 | 齐鲁工业大学 | A kind of water resistance biology base adhesive and preparation method thereof |
| CN110964478A (en) * | 2019-12-02 | 2020-04-07 | 北京林业大学 | Hyperbranched polyester and borate modified high-strength anti-corrosion soybean protein adhesive and preparation method thereof |
| CN111675998A (en) * | 2020-07-03 | 2020-09-18 | 德华兔宝宝装饰新材股份有限公司 | Bean pulp adhesive for blockboard and preparation method thereof |
| CN114517072A (en) * | 2022-03-10 | 2022-05-20 | 天津元汇科技有限公司 | Water-soluble degradable biomass hyperbranched citric acid polyester adhesive and application thereof |
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| CN115895554B (en) | 2023-07-21 |
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