CN117165260A - Inorganic hybridization reinforced modified waterproof soybean meal adhesive and preparation method thereof - Google Patents
Inorganic hybridization reinforced modified waterproof soybean meal adhesive and preparation method thereof Download PDFInfo
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Landscapes
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention discloses an inorganic hybridization reinforced modified waterproof soybean meal adhesive and a preparation method thereof, and relates to a waterproof soybean meal adhesive and a preparation method thereof. The invention aims to solve the problems that the existing industrial soybean meal adhesive is unsatisfactory in water resistance and high in cost, and further limits large-scale industrial application, and particularly solves the problems that the waterproof soybean meal adhesive is small in use amount and not obvious in cost reduction of the adhesive when modified by inorganic filler. The soybean meal adhesive is prepared from a polyamide polyamine-epichlorohydrin resin aqueous solution and an inorganic ore powder-soybean meal mixture containing a hybridization auxiliary agent; the preparation method comprises the following steps: 1. preparing an inorganic ore powder-soybean meal mixture containing a hybridization auxiliary agent; 2. weighing and mixing. The invention relates to a waterproof soybean meal adhesive for an aldehyde-free artificial board and a preparation method thereof.
Description
Technical Field
The invention relates to a waterproof soybean meal adhesive and a preparation method thereof.
Background
More than 90% of the existing adhesives used for producing artificial boards are urea-formaldehyde resin adhesives, and although the urea-formaldehyde resin adhesives have the advantages of good gluing performance, excellent process use performance, low cost and the like, the production of the urea-formaldehyde resin adhesives is highly dependent on nonrenewable petroleum fossil resources, and the glued products of the urea-formaldehyde resin adhesives can release free formaldehyde harmful to human bodies and the environment in the processes of processing, storing and using the glue-bonded products. The health and safety problems caused by formaldehyde release of the artificial board and the product thereof are paid attention to, so that new standard GB/T39600-2021 of the new standard of the release grading of the formaldehyde of the artificial board and the product thereof is issued in 2021 month 3 in China, wherein more strict requirements are put forward on the formaldehyde release of the artificial board, the limit requirements of the new standard on the formaldehyde release of the new standard are difficult to be met by a plurality of artificial boards prepared by using urea-formaldehyde resin adhesives, and the highest grade E is put forward for the first time in the world NF The amount of formaldehyde in the stage (aldehyde-free stage) is released and classified.
The formaldehyde-free adhesive prepared from formaldehyde-free raw materials is produced E NF The main method of the grade artificial board is that the formaldehyde-free soybean meal adhesive prepared by taking the renewable and degradable oil-pressed soybean meal powder with abundant resources as the main raw material is an effective way for replacing formaldehyde synthetic resin adhesives and solving the problem of formaldehyde release of the artificial board, and the industrial production and application are realized at present. However, the cost of the raw materials (the pressed oil bean pulp powder and the crosslinking dispersing agent) for preparing the bean pulp adhesive is higher than that of urea and formaldehyde, so that the cost of the bean pulp adhesive is obviously higher than that of the urea-formaldehyde resin adhesive>25%). In addition, because the oil extraction soybean meal powder has fewer crosslinkable active groups, the cured adhesive has low crosslinking density, poor cementing water resistance and the like. Therefore, a plurality of scholars at home and abroad develop extensive researches on the improvement of the water resistance of the soybean protein adhesive, for example, strategies such as protein denaturation, crosslinking modification, composite modification, bionic modification, hyperbranched modification, fiber reinforcement modification and the like are adopted, so that the application bottleneck problems of low bonding strength, poor II-type water resistance and the like of the soybean meal adhesive are solved, and the industrial application of the soybean meal adhesive is promoted. However, compared with urea-formaldehyde resin adhesives, the soybean meal adhesiveThe problem of high cost of the agent is not solved effectively all the time, which greatly limits the large-scale industrial application of the soybean meal adhesive in the production of the formaldehyde-free artificial board.
Taking polyamide polyamine-epichlorohydrin (PAE) modified soybean meal adhesive applied industrially at present as an example, PAE resin solution is taken as a dispersing agent and a crosslinking modifier, and the PAE resin is prepared with oil-pressed soybean meal powder at room temperature through mechanical stirring. However, the soybean-based adhesive has great challenges in preparing waterproof artificial boards with class I water resistance by using the soybean-based adhesive due to the large molecular weight, few crosslinkable groups, low crosslinking density and the like, and the soybean-based adhesive is generally used for manufacturing class II artificial boards, so that the requirement of class I artificial boards is difficult to reach, and the application range of the formaldehyde-free soybean-based adhesive is limited. In addition, according to the latest market cost (7 months in 2023) of PAE resin solid content (about 18000 yuan/ton) and soybean meal powder (about 6500 yuan/ton), the raw material cost of the prepared waterproof soybean meal adhesive is about 3258 yuan/ton, compared with E 0 The urea-formaldehyde resin adhesive (about 2250 yuan/ton) is about 44.8% higher, and the high raw material cost also greatly limits the wide industrial application of the soybean-based adhesive. Therefore, on the premise of ensuring that the gluing performance of the soybean meal adhesive meets the I-class plywood standard, the raw material cost is reduced as much as possible, and the wide application of the soybean meal adhesive in the aldehyde-free artificial board can be promoted.
In order to effectively reduce the cost of the soybean-based adhesive, the incremental filling using a low-cost inorganic filler is an effective method, however, too much introduction of the inorganic filler may reduce its adhesive property. Therefore, in order to ensure the gluing performance, only a small amount of low-cost inorganic filler can be added, which has limited cost-reducing effect on the soybean-based adhesive, for example, the layered silicate reinforced soybean adhesive disclosed in the patent CN102516933B, and the preparation method and application thereof, wherein the mass fraction of the used inorganic filler (montmorillonite) is only 0.1-1.5% of the mass fraction of the soybean derivative (soybean protein isolate), namely only 0.08-0.87% of the soybean adhesive. Therefore, how to fully increase the amount of the low-cost inorganic filler by using the inorganic filler on the premise of ensuring even improving the gluing performance is a problem which needs to be solved in the prior art.
Disclosure of Invention
The invention aims to solve the problems of unsatisfactory water resistance and high cost of the existing industrial soybean meal adhesive, and further limit the large-scale industrial application of the existing industrial soybean meal adhesive, and particularly solves the problems of small consumption and insignificant cost reduction of the adhesive when the waterproof soybean meal adhesive is modified by using inorganic fillers, and further provides the waterproof soybean meal adhesive with inorganic hybridization enhancement modification and a preparation method thereof, so that a larger amount of inorganic fillers can be used in the preparation process of the waterproof soybean meal adhesive, and the gluing performance of the waterproof soybean meal adhesive is improved, and meanwhile, the cost is effectively reduced.
The inorganic hybridization reinforced modified waterproof soybean meal adhesive is prepared from 100 parts by weight of polyamide polyamine-epichlorohydrin resin aqueous solution and 40-50 parts by weight of inorganic ore powder-soybean meal mixture containing hybridization auxiliary agents; the adding amount of the inorganic ore powder in the inorganic ore powder-soybean meal mixture containing the hybridization auxiliary agent is 10-15% of the mass of the inorganic hybridization reinforced modified waterproof soybean meal adhesive;
the mass percentage of the polyamide polyamine-epichlorohydrin resin aqueous solution is 7% -10%.
The preparation method of the inorganic hybridization reinforced modified waterproof soybean meal adhesive is completed according to the following steps:
1. weighing 15-40 parts of oil-pressed soybean meal powder, 5-30 parts of inorganic ore powder with a layered silicate structure and 0.1-0.7 part of hybridization auxiliary agent according to parts by weight, and uniformly mixing at room temperature to obtain an inorganic ore powder-soybean meal powder mixture containing the hybridization auxiliary agent;
2. weighing 100 parts by mass of polyamide polyamine-epichlorohydrin resin aqueous solution and 40-50 parts by mass of inorganic ore powder-soybean meal mixture containing hybridization auxiliary agent, and mechanically stirring uniformly at room temperature to obtain inorganic hybridization reinforced modified waterproof soybean meal adhesive; the addition amount of the inorganic ore powder in the inorganic ore powder-soybean meal mixture containing the hybridization auxiliary agent is 10-15% of the mass of the inorganic hybridization reinforced modified waterproof soybean meal adhesive;
the mass percentage of the polyamide polyamine-epichlorohydrin resin aqueous solution is 7% -10%.
The beneficial effects of the invention are as follows:
1) By means of the synergistic effect of the hybridization auxiliary agents, in the process of preparing and stirring the soybean meal adhesive at normal temperature, the positively charged polyamide polyamine-epichlorohydrin resin aqueous solution can realize the organic-inorganic hybridization effect on negatively charged inorganic ore powder through intercalation, so that the ore powder does not need to be subjected to additional complicated intercalation modification, meanwhile, the polyamide polyamine-epichlorohydrin resin aqueous solution can generate good dispersion with the negatively charged soybean meal powder and generate good chemical crosslinking on the soybean meal in the hot pressing process, so that a system forms an inorganic hybridization-chemical crosslinking network structure which is compact and has higher crosslinking density, and the gluing performance of the soybean meal adhesive is effectively improved.
2) In the preparation and stirring process of the soybean meal adhesive at normal temperature, based on the auxiliary intercalation effect of cationic polyacrylamide in the hybridization auxiliary agent on layered silicate and the unfolding effect of protein denaturants such as sodium dodecyl sulfate, sodium dodecyl sulfate or sodium bisulphite on soybean protein, the inorganic hybridization effect of inorganic ore powder on the soybean meal adhesive is improved, the crosslinking effect of polyamide polyamine-epichlorohydrin resin on the soybean meal is improved, so that a larger amount of low-cost inorganic ore powder with a layered silicate structure can be used for synchronously carrying out incremental cost reduction and inorganic hybridization enhancement on the soybean meal adhesive, the consumption of polyamide polyamine-epichlorohydrin resin can be saved, and the use cost of the adhesive for preparing the formaldehyde-free artificial board by the waterproof soybean meal adhesive is effectively reduced. Compared with the soybean meal adhesive prepared by the existing polyamide polyamine-epichlorohydrin resin, the adhesive has the advantages that the bonding strength in a water boiling wet state is improved by 14.8-53.8%, and the cost is reduced by 26.2%.
3) In the preparation process of the bean pulp adhesive at room temperature, the organic-inorganic hybridization modification of the inorganic ore powder to the bean pulp adhesive is realized by mechanical stirring, the complex hybridization modification of the inorganic ore powder is not needed, and the preparation method has the advantages of simple preparation process, environment friendliness, obvious cost reduction effect and enhancement effect, and can promote the wider application of the aldehyde-free bean pulp adhesive in the production of aldehyde-free artificial boards.
Drawings
FIG. 1 is a Zeta potential diagram of a polyamide polyamine-epichlorohydrin resin, pressed oil soybean meal, and various inorganic mineral powders;
FIG. 2 is an inorganic hybridization XRD spectrum of a polyamide polyamine-epichlorohydrin resin to kaolin KL and montmorillonite MM;
FIG. 3 is a reaction scheme of curing and crosslinking of a polyamide polyamine-epichlorohydrin resin to a soybean meal;
FIG. 4 is a graph showing the comparison of boiling water insoluble content of modified soybean meal adhesives with different inorganic hybrid enhancements in comparison experiment one and comparison experiment two.
Detailed Description
The technical scheme of the invention is not limited to the specific embodiments listed below, but also includes any combination of the specific embodiments.
The first embodiment is as follows: the inorganic hybridization reinforced modified waterproof soybean meal adhesive is prepared from 100 parts by weight of polyamide polyamine-epichlorohydrin resin aqueous solution and 40-50 parts by weight of inorganic ore powder-soybean meal mixture containing hybridization auxiliary agents; the adding amount of the inorganic ore powder in the inorganic ore powder-soybean meal mixture containing the hybridization auxiliary agent is 10-15% of the mass of the inorganic hybridization reinforced modified waterproof soybean meal adhesive;
the mass percentage of the polyamide polyamine-epichlorohydrin resin aqueous solution is 7% -10%.
The inorganic ore powder in the specific embodiment is low-cost inorganic ore with a layered silicate structure. The price of various inorganic ore powder is between 700 and 1200 yuan/ton, which is obviously lower than the price of bean powder (about 6500 yuan/ton) and polyamide polyamine-epichlorohydrin resin (about 18000 yuan/ton) or bean pulp adhesive (about 3258 yuan/ton), so the cost of the modified adhesive is reduced by using the inorganic ore powder to modify the bean pulp adhesive and increasing the quality or solid content of the adhesive.
The hybridization auxiliary agent disclosed in the specific embodiment has two components: the cationic polyacrylamide and a protein denaturant (one or more of sodium dodecyl sulfate, sodium dodecyl sulfonate and sodium bisulphite), wherein the effect of the cationic polyacrylamide and the protein denaturant in the hybridization auxiliary agent is that positively charged cations are mainly utilized to intercalate negatively charged ore powder lamellar structures, the interlayer spacing of silicate sheets is enlarged, the hybridization effect of polyamide polyamine-epichlorohydrin resin and stretched soybean protein molecules on inorganic ore powder is improved, and meanwhile, the polyacrylamide is used as a colloid stabilizer, so that inorganic ore powder particles can be stably dispersed in the soybean meal adhesive, and deposition is avoided; the protein denaturant has the main effects that the soybean protein with a spherical structure can be stretched by breaking the hydrophobic bond and disulfide bond of the soybean protein, so that more active groups which can be crosslinked by polyamide polyamine-epichlorohydrin resin are released, the stretched soybean protein molecules are promoted to realize intercalation in the lamellar structure of the inorganic ore powder, and the hybridization effect of the inorganic ore powder on the soybean meal adhesive and the crosslinking effect of the polyamide polyamine-epichlorohydrin resin on the soybean meal powder are further improved.
The beneficial effects of this concrete implementation are:
1) By means of the synergistic effect of the hybridization auxiliary agents, in the process of preparing and stirring the soybean meal adhesive at normal temperature, the positively charged polyamide polyamine-epichlorohydrin resin aqueous solution can realize the organic-inorganic hybridization effect on negatively charged inorganic ore powder through intercalation, so that the ore powder does not need to be subjected to additional complicated intercalation modification, meanwhile, the polyamide polyamine-epichlorohydrin resin aqueous solution can generate good dispersion with the negatively charged soybean meal powder and generate good chemical crosslinking on the soybean meal in the hot pressing process, so that a system forms an inorganic hybridization-chemical crosslinking network structure which is compact and has higher crosslinking density, and the gluing performance of the soybean meal adhesive is effectively improved.
2) In the preparation and stirring process of the soybean meal adhesive at normal temperature, based on the auxiliary intercalation effect of cationic polyacrylamide in the hybridization auxiliary agent on layered silicate and the unfolding effect of protein denaturants such as sodium dodecyl sulfate, sodium dodecyl sulfate or sodium bisulphite on soybean protein, the inorganic hybridization effect of inorganic ore powder on the soybean meal adhesive is improved, the crosslinking effect of polyamide polyamine-epichlorohydrin resin on the soybean meal is improved, so that a larger amount of low-cost inorganic ore powder with a layered silicate structure can be used for synchronously carrying out incremental cost reduction and inorganic hybridization enhancement on the soybean meal adhesive, the consumption of polyamide polyamine-epichlorohydrin resin can be saved, and the use cost of the adhesive for preparing the formaldehyde-free artificial board by the waterproof soybean meal adhesive is effectively reduced. Compared with the soybean meal adhesive prepared by the existing polyamide polyamine-epichlorohydrin resin, the adhesive has the advantages that the bonding strength in a water boiling wet state is improved by 14.8-53.8%, and the cost is reduced by 26.2%.
3) In the preparation process of the bean pulp adhesive at room temperature, the organic-inorganic hybridization modification of the inorganic ore powder to the bean pulp adhesive is realized by mechanical stirring, the complex hybridization modification of the inorganic ore powder is not needed, and the preparation method has the advantages of simple preparation process, environment friendliness, obvious cost reduction effect and enhancement effect, and can promote the wider application of the aldehyde-free bean pulp adhesive in the production of aldehyde-free artificial boards.
The second embodiment is as follows: the first difference between this embodiment and the specific embodiment is that: the inorganic ore powder-soybean meal mixture containing the hybridization auxiliary agent is prepared by mixing 15-40 parts of oil-pressed soybean meal powder, 5-30 parts of inorganic ore powder with a layered silicate structure and 0.1-0.7 part of the hybridization auxiliary agent according to parts by weight. The other is the same as in the first embodiment.
And a third specific embodiment: this embodiment differs from one or both of the embodiments in that: the adding amount of the hybridization auxiliary agent is 0.5-1.0% of the total mass of the oil-pressed soybean meal powder and the inorganic ore powder with the layered silicate structure. The other is the same as the first or second embodiment.
The specific embodiment IV is as follows: this embodiment differs from one of the first to third embodiments in that: the hybridization auxiliary agent is a mixture of a protein denaturant and cationic polyacrylamide; the mass percentage of the cationic polyacrylamide in the hybridization auxiliary agent is 50% -70%; the protein denaturant is one or a mixture of more of sodium dodecyl sulfate, sodium dodecyl sulfonate and sodium bisulphite. The other embodiments are the same as those of the first to third embodiments.
Fifth embodiment: this embodiment differs from one to four embodiments in that: the oil-pressed soybean meal powder is soybean meal obtained by preparing oil from soybeans, and is obtained by physical crushing and sieving with a 120-mesh sieve. The other embodiments are the same as those of the first to fourth embodiments.
Specific embodiment six: this embodiment differs from one of the first to fifth embodiments in that: the inorganic ore powder with the layered silicate structure is one or a mixture of a plurality of kaolin, montmorillonite, bentonite, mica powder, talcum powder, chlorite powder, navy stone powder and vermiculite powder. The other embodiments are the same as those of the first to fifth embodiments.
Seventh embodiment: this embodiment differs from one of the first to sixth embodiments in that: the inorganic ore powder with the layered silicate structure is obtained after grinding and passing through a screen with the mesh number not less than 1250 meshes. The other embodiments are the same as those of the first to sixth embodiments.
Eighth embodiment: the preparation method of the inorganic hybridization reinforced modified waterproof soybean meal adhesive is completed according to the following steps:
1. weighing 15-40 parts of oil-pressed soybean meal powder, 5-30 parts of inorganic ore powder with a layered silicate structure and 0.1-0.7 part of hybridization auxiliary agent according to parts by weight, and uniformly mixing at room temperature to obtain an inorganic ore powder-soybean meal powder mixture containing the hybridization auxiliary agent;
2. weighing 100 parts by mass of polyamide polyamine-epichlorohydrin resin aqueous solution and 40-50 parts by mass of inorganic ore powder-soybean meal mixture containing hybridization auxiliary agent, and mechanically stirring uniformly at room temperature to obtain inorganic hybridization reinforced modified waterproof soybean meal adhesive; the addition amount of the inorganic ore powder in the inorganic ore powder-soybean meal mixture containing the hybridization auxiliary agent is 10-15% of the mass of the inorganic hybridization reinforced modified waterproof soybean meal adhesive;
the mass percentage of the polyamide polyamine-epichlorohydrin resin aqueous solution is 7% -10%.
The second step of the specific embodiment is to mechanically stir at room temperature to form fine and homogeneous viscous colloid without particulate matters, so that bean pulp powder and inorganic ore powder are uniformly dispersed in a polyamide polyamine-epichlorohydrin resin solution under the synergistic effect of a hybridization auxiliary agent to form fine and homogeneous viscous colloid without obvious particles, and the process not only ensures that the positively charged polyamide polyamine-epichlorohydrin resin (25-35 mV) carries out organic-inorganic hybridization on negatively charged inorganic ore powder (-9-32 mV) with a layered silicate structure, but also can carry out intercalation hybridization and dissolution dispersion on negatively charged bean pulp powder (-28-35 mV) and generate good chemical crosslinking in the hot pressing process, so that a compact three-dimensional network structure is finally formed between the bean pulp powder/polyamide polyamine-epichlorohydrin resin/inorganic ore powder. The network structure formed by the organic-inorganic hybridization between the bean pulp and the inorganic ore powder, the organic-inorganic hybridization between the polyamide polyamine-epichlorohydrin resin and the inorganic ore powder and the chemical crosslinking between the bean pulp powder and the polyamide polyamine-epichlorohydrin resin can lead the rigid inorganic ore powder particles to form good enhancement effect on the bean pulp adhesive, and the enhancement and improvement of the water resistance of the bean pulp adhesive are realized while the incremental cost reduction effect is realized by means of the high-consumption low-cost inorganic ore powder. However, the Zeta potential and the lamellar structure of the inorganic ore powder of different types are different, so that the hybridization effect of the inorganic ore powder and polyamide polyamine-epichlorohydrin resin is different, the crosslinking density of the hybridized modified soybean meal adhesive is different, and the addition of the hybridization auxiliary agent also influences the water resistance of the hybridized soybean meal adhesive.
Detailed description nine: this embodiment differs from the eighth embodiment in that: and step two, mechanically stirring for 10 to 15 minutes at room temperature and stirring speed of 80 to 180 r/min. The other is the same as in embodiment eight.
Detailed description ten: this embodiment differs from one of the eighth or ninth embodiments in that: the adding amount of the hybridization auxiliary agent in the first step is 0.5-1.0% of the total mass of the oil-pressed soybean meal powder and the inorganic ore powder with the layered silicate structure; the hybridization auxiliary agent in the first step is one or a mixture of more of sodium dodecyl sulfate, sodium dodecyl sulfate and sodium bisulfate and cationic polyacrylamide, wherein the mass percentage of the cationic polyacrylamide in the hybridization auxiliary agent is 50-70%; the inorganic ore powder with the layered silicate structure in the first step is one or a mixture of a plurality of kaolin, montmorillonite, bentonite, mica powder, talcum powder, chlorite powder, navajoite powder and vermiculite powder. The others are the same as in one of the eighth or ninth embodiments.
The following examples are used to verify the benefits of the present invention:
embodiment one:
the preparation method of the inorganic hybridization reinforced modified waterproof soybean meal adhesive is completed according to the following steps:
1. weighing 30.5 parts of oil-pressed soybean meal powder, 14.5 parts of inorganic ore powder with a layered silicate structure and 0.225 part of hybridization auxiliary agent according to parts by weight, and uniformly mixing at room temperature to obtain an inorganic ore powder-soybean meal powder mixture containing the hybridization auxiliary agent;
2. weighing 100 parts by mass of aqueous solution of polyamide polyamine-epichlorohydrin resin and 45 parts by mass of inorganic ore powder-soybean meal mixture containing hybridization auxiliary agent, and mechanically stirring for 10min at room temperature at a stirring speed of 160r/min to obtain inorganic hybridization reinforced modified waterproof soybean meal adhesive;
the mass percentage of the aqueous solution of the polyamide polyamine-epichlorohydrin resin is 7%.
The hybridization auxiliary agent in the first step is a mixture of cationic polyacrylamide and sodium bisulfite in a mass ratio of 1:1.
The oil-pressed soybean meal powder in the first step is soybean meal obtained by preparing oil from soybeans, and is obtained by physical crushing and sieving with a 120-mesh sieve, wherein the water content is 8%;
the inorganic ore powder with the layered silicate structure in the first step is montmorillonite MM, and the inorganic ore powder with the layered silicate structure is obtained after grinding and passing through a screen with the mesh number of 1250 meshes;
embodiment two: the first difference between this embodiment and the first embodiment is that: in the second step, 0.45 parts of hybridization auxiliary agent is added. The other is the same as in the first embodiment.
Comparative experiment one:
weighing 100 parts by mass of polyamide polyamine-epichlorohydrin resin aqueous solution and 45 parts by mass of oil-pressed soybean meal powder, and mechanically stirring for 10min at room temperature at a stirring speed of 160r/min to obtain a reference soybean meal adhesive without modification of ore powder; the oil-pressed soybean meal powder is soybean meal obtained by preparing oil from soybeans, and is obtained by physical crushing and sieving with a 120-mesh sieve, wherein the water content is 8%; the mass percentage of the aqueous solution of the polyamide polyamine-epichlorohydrin resin is respectively 10% or 7%.
Comparison experiment II:
1. weighing 30.5 parts of oil extraction soybean meal and 14.5 parts of inorganic ore powder with a layered silicate structure according to parts by weight, and uniformly mixing at room temperature to obtain an inorganic ore powder-soybean meal mixture without a hybridization auxiliary agent;
2. weighing 100 parts by mass of aqueous solution of polyamide polyamine-epichlorohydrin resin and 45 parts by mass of inorganic ore powder-soybean meal mixture without a hybridization auxiliary agent, and mechanically stirring for 10min at room temperature at a stirring speed of 160r/min to obtain an inorganic hybridization reinforced modified soybean meal adhesive;
the mass percentage of the aqueous solution of the polyamide polyamine-epichlorohydrin resin is 7%.
The oil-pressed soybean meal powder in the first step is soybean meal obtained by preparing oil from soybeans, and is obtained by physical crushing and sieving with a 120-mesh sieve, wherein the water content is 8%;
the inorganic ore powder with the layered silicate structure in the first step is kaolin KL, montmorillonite MM or bentonite respectively, and the inorganic ore powder with the layered silicate structure is obtained after grinding and passing through a screen with the mesh number of 1250 meshes.
Comparison experiment three: the second difference between the comparison experiment and the comparison experiment is that: step one, weighing 23.25 parts of oil extraction soybean meal powder and 21.75 parts of inorganic ore powder with a layered silicate structure according to parts by weight, and uniformly mixing at room temperature to obtain an inorganic ore powder-soybean meal powder mixture; the inorganic ore powders with the layered silicate structure in the first step are montmorillonite MM respectively. The others are the same as in comparative experiment two.
The oil-extracted soybean meal powder is abbreviated as DSF, and the polyamide polyamine-epichlorohydrin resin is abbreviated as PAE.
In a first comparison experiment, the reference soybean meal adhesives without modification of ore powder prepared by using aqueous solutions of polyamide polyamine-epichlorohydrin resin with mass percent of 10% or 7% are respectively named as A1-A2.
In the second comparison experiment, inorganic hybridization reinforced modified soybean meal adhesives prepared by using kaolin KL, montmorillonite MM or bentonite are respectively named as B2-B4.
The inorganic hybridization reinforced modified soybean meal adhesives prepared in the third comparative experiment are respectively named as C1.
The inorganic hybrid enhanced modified waterproof soybean meal adhesives prepared in examples one to two were named D2 to D3, respectively.
The prepared soybean meal adhesive is prepared according to the weight of 400g/m 2 Coating the double-sided sizing amount of (1) 7mm thick birch veneer core layer on two sides, forming a veneer embryo in a mode of being vertical to the wood grain direction, prepressing for 30min under the condition of veneer pressure of 1.2MPa, and then hot-pressing for 4.5min under the condition of 120 ℃ and veneer pressure of 1.2MPa to obtain the bean pulp adhesive pressed three-layer plywood; the dry bonding strength, the wet bonding strength of the water-soaked at 63 ℃ and the wet bonding strength of the water-boiled plywood (test pieces are firstly soaked in water at 63+/-2 ℃ for 3 hours and then soaked in cold water for 10 minutes) and the wet bonding strength of the water-boiled plywood (test pieces are firstly boiled in boiling water for 4 hours, then baked in an oven at 63+/-2 ℃ for 20 hours and then boiled in boiling water for 4 hours and finally soaked in cold water at 25 ℃ for 1 hour) of the plywood are respectively tested according to the method specified by the national standard GB/T17655-2015, and the results are shown in tables 1 to 4.
TABLE 1 gluing Properties of reference Soybean meal adhesives without Ore powder modification
TABLE 2 gluing Properties of different inorganic Ore powder modified soybean meal adhesives
TABLE 3 gluing Properties of montmorillonite-modified soybean meal adhesives with different amounts
TABLE 4 gluing Properties of modified waterproof Soybean meal adhesives enhanced by inorganic hybridization with different sodium bisulfite usage
Respectively dissolving polyamide polyamine-epichlorohydrin resin, oil pressed soybean meal powder, kaolin KL, montmorillonite MM, bentonite, talcum powder, mica powder or chlorite powder by using distilled water to obtain a mass percentage of 0.1%, ultrasonic treating for 10 minutes, filling a sample into a sample cell, and measuring Zeta potential distribution of the soybean meal powder by a micro electrophoresis method, wherein the Zeta potential distribution is shown in figure 1;
to explore the interaction of polyamide polyamine-epichlorohydrin resin in the soybean meal-free powder on kaolin/montmorillonite; to 100 parts by mass of a 10% aqueous solution of a polyamide polyamine-epichlorohydrin resin, 40 parts of kaolin/montmorillonite was added to conduct XRD pattern, as shown in FIG. 2.
The A2 bean pulp adhesive prepared in the first comparison experiment and the B2-B4 bean pulp adhesive prepared in the second comparison experiment are respectively placed in an oven at 120+/-2 ℃ for thermal curing for 4 hours, the granules passing through a 120-mesh screen are obtained through crushing and grinding, the ground granules are placed in boiling water for boiling for 4 hours, finally insoluble matters are weighed through filtering and drying treatment, and the boiling water insoluble matter content of different bean pulp adhesives is calculated, as shown in figure 4.
FIG. 1 is a Zeta potential diagram of a polyamide polyamine-epichlorohydrin resin, pressed oil soybean meal, and various inorganic mineral powders; FIG. 2 is an inorganic hybridization XRD spectrum of a polyamide polyamine-epichlorohydrin resin to kaolin KL and montmorillonite MM;
FIG. 3 is a reaction scheme of curing and crosslinking of a polyamide polyamine-epichlorohydrin resin to a soybean meal; FIG. 4 is a graph showing the comparison of boiling water insoluble content of modified soybean meal adhesives with different inorganic hybrid enhancements in comparison experiment one and comparison experiment two;
as shown in fig. 1, 4 and table 1, in the absence of inorganic ore powder, positively charged polyamide polyamine-epichlorohydrin resin (29.8 mV) can dissolve and disperse negatively charged soybean meal powder (-30.6 mV) and generate good chemical crosslinking during heat curing (fig. 3), so that the reference soybean meal powder adhesive A2 prepared from the polyamide polyamine-epichlorohydrin resin solution with a mass percentage of 7% has a certain boiling water resistance (boiling water insoluble content of 69.4%) and a water-bubble wet bonding strength (1.43 MPa) meeting the class ii plywood standard, and if the water resistance of the prepared soybean meal adhesive is made to fully meet the required value of class i wet strength, the mass percentage concentration of the polyamide polyamine-epichlorohydrin resin is increased to 10%.
As can be seen from fig. 1 and 2, the positively charged polyamide polyamine-epichlorohydrin resin (29.8 mV) can interact with montmorillonite (-28.3 mV) and kaolin (-29.5 mV) which are negatively charged and have a layered silicate structure, so that diffraction peaks of montmorillonite at 6.1 °, 20.8 °, 26.0 ° and diffraction peaks of kaolin at 12.3 °, 19.7 °, 26.5 ° are reduced in intensity, and crystallinity is reduced. Therefore, the polyamide polyamine-epichlorohydrin resin and the soybean meal powder generate stable chemical crosslinking (figure 3), and the combination of the organic-inorganic hybridization of the montmorillonite and the kaolin in the adhesive system can jointly endow the modified soybean meal powder adhesive with excellent water resistance, so that the boiling water insoluble content of the montmorillonite and the kaolin modified soybean meal adhesive is increased by 15.6-17.7% compared with that of the reference soybean meal adhesive (figure 4). And because the polyamide polyamine-epichlorohydrin resin has more sufficient organic-inorganic hybridization on montmorillonite (figure 2), the montmorillonite modified soybean meal adhesive has more excellent wet state glue strength (1.26 MPa) after boiling (Table 2) and is higher than 26.0 percent of the standard requirement of class I plywood.
Table 3 shows that as the mass ratio of montmorillonite in the soybean meal adhesive increases from 0% to 10%, the water-boiling wet bonding strength of the montmorillonite modified soybean meal adhesive increases by 38.5%, which is mainly due to the intercalation of polyamide polyamine-epichlorohydrin resin with montmorillonite and the organic-inorganic three-dimensional network structure formed by chemical crosslinking of soybean meal powder. If excessive montmorillonite (20%) is aggregated in the soybean meal adhesive system, the continuity of the soybean meal adhesive system is affected, and the gluing performance of the modified soybean meal adhesive is reduced.
Table 4 shows that, as the dosage of the hybridization auxiliary agent is increased from 0% to 1.0% by mass, the water boiling wet bonding strength of the modified soybean meal adhesive is further increased by 11.1% beyond 40% of the standard requirement of the class I plywood, and the improvement of the water resistance is mainly due to the intercalation expansion effect of cationic polyacrylamide on montmorillonite sheets and the disulfide bond of soybean protein broken by sodium bisulphite, so that soybean protein molecules with spherical structures are unfolded, more active groups which can be crosslinked by polyamide polyamine-epichlorohydrin resin are released, more sufficient intercalation effect is generated between the extended soybean protein molecules and inorganic montmorillonite, and the organic-inorganic hybridization effect of the adhesive system is increased; however, when the amount of the hybridization aid exceeds 1%, the enhancement thereof is not continuously increased. According to cost accounting, the price of the soybean meal powder is about 6500 yuan/ton, the solid content of the polyamide polyamine-epichlorohydrin resin is about 18000 yuan/ton, so that the soybean meal adhesive A1 prepared by using the polyamide polyamine-epichlorohydrin resin with the concentration of 10% by mass percent has the price of about 3250 yuan/ton on the premise of meeting the class I water-resistant grade requirement; the low-cost montmorillonite (1200 yuan/ton) accounting for 10% of the mass of the soybean meal adhesive is used for replacing soybean meal powder, the hybridization auxiliary agent (5000 yuan/ton) accounting for 1.0% of the mass of the montmorillonite-soybean meal powder is introduced, the price of the prepared polyamide polyamine-epichlorohydrin resin (7% by mass) modified soybean meal adhesive is about 2400 yuan/ton, the cost is reduced by 26.2%, and the cost is very similar to that of E0-grade aldehyde resin adhesive (about 2300 yuan/ton).
Claims (10)
1. The inorganic hybridization reinforced modified waterproof soybean meal adhesive is characterized by being prepared from 100 parts by weight of polyamide polyamine-epichlorohydrin resin aqueous solution and 40-50 parts by weight of inorganic ore powder-soybean meal mixture containing hybridization auxiliary agents; the adding amount of the inorganic ore powder in the inorganic ore powder-soybean meal mixture containing the hybridization auxiliary agent is 10-15% of the mass of the inorganic hybridization reinforced modified waterproof soybean meal adhesive;
the mass percentage of the polyamide polyamine-epichlorohydrin resin aqueous solution is 7% -10%.
2. The inorganic hybridization reinforced modified waterproof soybean meal adhesive according to claim 1, wherein the inorganic ore powder-soybean meal powder mixture containing the hybridization auxiliary agent is prepared by mixing 15-40 parts of oil-pressed soybean meal powder, 5-30 parts of inorganic ore powder with a layered silicate structure and 0.1-0.7 part of the hybridization auxiliary agent according to mass parts.
3. The inorganic hybridization reinforced modified waterproof soybean meal adhesive according to claim 2, wherein the adding amount of the hybridization auxiliary agent is 0.5% -1.0% of the total mass of the oil-pressed soybean meal powder and the inorganic ore powder with the layered silicate structure.
4. The inorganic hybridization reinforced modified waterproof soybean meal adhesive according to claim 2, wherein the hybridization auxiliary agent is a mixture of a protein denaturant and cationic polyacrylamide; the mass percentage of the cationic polyacrylamide in the hybridization auxiliary agent is 50% -70%; the protein denaturant is one or a mixture of more of sodium dodecyl sulfate, sodium dodecyl sulfonate and sodium bisulphite.
5. The inorganic hybrid reinforced modified waterproof soybean meal adhesive according to claim 2, wherein the oil pressed soybean meal powder is soybean meal obtained by preparing oil from soybean, and is obtained by physical crushing and sieving with a 120-mesh sieve.
6. The inorganic hybridization reinforced modified waterproof soybean meal adhesive according to claim 2, wherein the inorganic ore powder with a layered silicate structure is one or a mixture of a plurality of kaolin, montmorillonite, bentonite, mica powder, talcum powder, chlorite powder, navajoite powder and vermiculite powder.
7. The inorganic hybrid reinforced modified waterproof soybean meal adhesive according to claim 6, wherein the inorganic ore powder with a layered silicate structure is obtained by grinding and passing through a mesh with a mesh number of not less than 1250 mesh.
8. The preparation method of the inorganic hybrid reinforced modified waterproof soybean meal adhesive as claimed in claim 1, which is characterized by comprising the following steps:
1. weighing 15-40 parts of oil-pressed soybean meal powder, 5-30 parts of inorganic ore powder with a layered silicate structure and 0.1-0.7 part of hybridization auxiliary agent according to parts by weight, and uniformly mixing at room temperature to obtain an inorganic ore powder-soybean meal powder mixture containing the hybridization auxiliary agent;
2. weighing 100 parts by mass of polyamide polyamine-epichlorohydrin resin aqueous solution and 40-50 parts by mass of inorganic ore powder-soybean meal mixture containing hybridization auxiliary agent, and mechanically stirring uniformly at room temperature to obtain inorganic hybridization reinforced modified waterproof soybean meal adhesive; the addition amount of the inorganic ore powder in the inorganic ore powder-soybean meal mixture containing the hybridization auxiliary agent is 10-15% of the mass of the inorganic hybridization reinforced modified waterproof soybean meal adhesive;
the mass percentage of the polyamide polyamine-epichlorohydrin resin aqueous solution is 7% -10%.
9. The method for preparing the inorganic hybrid reinforced modified waterproof soybean meal adhesive according to claim 8, wherein the second step is performed for 10-15 min under the conditions of room temperature and stirring speed of 80-180 r/min.
10. The method for preparing the inorganic hybridization reinforced modified waterproof soybean meal adhesive according to claim 8, wherein the adding amount of the hybridization auxiliary agent in the first step is 0.5% -1.0% of the total mass of the oil-pressed soybean meal powder and the inorganic ore powder with the layered silicate structure; the hybridization auxiliary agent in the first step is one or a mixture of more of sodium dodecyl sulfate, sodium dodecyl sulfate and sodium bisulfate and cationic polyacrylamide, wherein the mass percentage of the cationic polyacrylamide in the hybridization auxiliary agent is 50-70%; the inorganic ore powder with the layered silicate structure in the first step is one or a mixture of a plurality of kaolin, montmorillonite, bentonite, mica powder, talcum powder, chlorite powder, navajoite powder and vermiculite powder.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102516933A (en) * | 2011-12-07 | 2012-06-27 | 中国科学院宁波材料技术与工程研究所 | Layered silicate reinforced soybean adhesive, its preparation method and application |
| CN102719217A (en) * | 2012-06-20 | 2012-10-10 | 马晓平 | Protein-based wood adhesive and preparation method thereof |
| CN106009707A (en) * | 2016-06-24 | 2016-10-12 | 佛山市合璟节能环保科技股份有限公司 | Biomass additive for board adhesive as well as preparation method and application thereof |
-
2023
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102516933A (en) * | 2011-12-07 | 2012-06-27 | 中国科学院宁波材料技术与工程研究所 | Layered silicate reinforced soybean adhesive, its preparation method and application |
| CN102719217A (en) * | 2012-06-20 | 2012-10-10 | 马晓平 | Protein-based wood adhesive and preparation method thereof |
| CN106009707A (en) * | 2016-06-24 | 2016-10-12 | 佛山市合璟节能环保科技股份有限公司 | Biomass additive for board adhesive as well as preparation method and application thereof |
Non-Patent Citations (1)
| Title |
|---|
| 常子文: "低成本无机填料对脱脂豆粉胶黏剂的改性及作用机制研究", 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》, no. 2, 15 February 2021 (2021-02-15), pages 1 - 70 * |
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