CN106590523A - Soybean-based formaldehyde-free adhesive and application methods thereof - Google Patents
Soybean-based formaldehyde-free adhesive and application methods thereof Download PDFInfo
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- CN106590523A CN106590523A CN201610988462.8A CN201610988462A CN106590523A CN 106590523 A CN106590523 A CN 106590523A CN 201610988462 A CN201610988462 A CN 201610988462A CN 106590523 A CN106590523 A CN 106590523A
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- soybean
- free adhesive
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J189/00—Adhesives based on proteins; Adhesives based on derivatives thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27D—WORKING VENEER OR PLYWOOD
- B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
- B27D1/04—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring to produce plywood or articles made therefrom; Plywood sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/002—Manufacture of substantially flat articles, e.g. boards, from particles or fibres characterised by the type of binder
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J1/00—Adhesives based on inorganic constituents
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Inorganic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention discloses a soybean-based formaldehyde-free adhesive and application methods thereof, and belongs to the technical field of adhesives. The soybean-based formaldehyde-free adhesive comprises, by mass, 30-90% of a soybean adhesive and 10-70% of an inorganic adhesive. The soybean-based formaldehyde-free adhesive has the advantages of high adhesive strength, good waterproof property, effective reduction of the production cost, and excellent market promotion and application prospect in the wood-based plate industry and the furniture manufacturing industry. The invention also provides a method applying the adhesive to a glued plate and a method applying the adhesive to a shaving plate or a fiber plate. The plates made through adopting the applying methods have the advantages of good gluing property, high flexural strength and high static bending intensity.
Description
Technical field
The present invention relates to adhesive technical field, and in particular to the soybean-based that a kind of rubber made from soybean cake is blended with inorganic glue is formaldehydeless
Adhesive and its application process.
Background technology
Urea-formaldehyde glue, phenol glue, carbamide glue are the principal item of timber industry glue, in China, urea-formaldehyde glue
Yield accounts for more than the 80% of " three-aldehyde glue "." three-aldehyde glue " and its woodwork can be released continuously in production and application process
Put free formaldehyde, the serious harm physical and mental health of industrial worker and consumer.Formaldehyde is ground by World Health Organization's international cancer
Study carefully mechanism (IARC) and be classified as I class carcinogens, i.e., have carcinogenesis to human and animal.Therefore for various wood-based plates
The restriction of the burst size of methanal of (including glued board, particieboard, fiberboard and core-board) is also gradually strict.With people's environmental protection
The continuous enhancing and the requirement to environment of consciousness is more and more stricter, and the natural glue with renewable resource as raw material enjoys people
Attention.At present, being usually used in preparing the natural reproducible material of adhesive has：Lignin, tannin, protein, starch, shitosan etc.
Polysaccharide material, especially with protein adhesive as study hotspot, and especially with soybean protein base adhesive most study.But, glue
Connect that intensity is high, water resistance is poor and the expensive bottleneck problem for being to limit soy protein adhesives development, it is therefore desirable to
The water resistance and glue-joint strength performance for urgently improving soybean base adhesive is good.
The content of the invention
In order to overcome the deficiencies in the prior art, it is an object of the invention to provide a kind of soybean-based Formaldehyde-free adhesive and its
Application process, the adhesive glue-joint strength is high, water-tolerant, production cost can be effectively reduced, in industry of artificial boards and furniture system
Make and have in industry excellent marketing application prospect.
To solve the above problems, the technical solution adopted in the present invention is as follows：
A kind of soybean-based Formaldehyde-free adhesive, it includes following component by mass percentage：Rubber made from soybean cake 30～90%
With inorganic glue 10～70%.
Used as the preferred embodiment of the present invention, soybean-based Formaldehyde-free adhesive of the present invention includes following by quality
The component of percentage meter：Rubber made from soybean cake 30～70% and inorganic glue 30～70%.
Another preferred embodiment as the present invention, soybean-based Formaldehyde-free adhesive of the present invention includes following pressing
The component of mass percentage：Rubber made from soybean cake 40～90% and inorganic glue 10～60%.
Preferably, the rubber made from soybean cake presses soybean rubber powder by soybean rubber powder with solution is improved：Improve solution=1：1.5～6.0
Ratio be prepared from.
Preferably, one kind in defatted soy flour, FSPC, the soybean protein isolate of the soybean rubber powder or
Arbitrarily two or more mixtures.
Preferably, the improvement solution includes 20～80 parts of water, 0.1～10 part of modifying agent, 5～30 parts of crosslinking agent and adjusts
0.05～5 part of agent；Wherein, the modifying agent is NaOH, potassium hydroxide, ammoniacal liquor, ammonium chloride, urea, Boratex, silicic acid
One or more in sodium, lauryl sodium sulfate, neopelex.The crosslinking agent is carbon disulfide, two thio
Ethylene carbonate, trithiocarbonic acid ethyl, thiocarbamide, potassium xanthate, polyamine amide epoxychloropropane, polyvinyl alcohol, aqueous ring
One or more in oxygen tree fat.The conditioning agent is citric acid, oxalic acid, tartaric acid, aliphatic acid, acetic acid, sorbic acid, apple
One or more in acid, benzoic acid.
Preferably, the inorganic glue is prepared as follows by magnesia, magnesium chloride, water and is formed：First by magnesium chloride and water
It is well mixed the magnesium chloride brine for making that Baume degrees is 25 °, proportion is 1.208, then by magnesia that purity is 85% by oxygen
Change magnesium：Magnesium chloride brine=1:1 ratio is added and is well mixed in magnesium chloride brine.
Present invention also offers a kind of application of soybean-based Formaldehyde-free adhesive as above in wood-based plate manufacturing industry.
Present invention also offers a kind of application process of soybean-based Formaldehyde-free adhesive as above：In manufacture particieboard
Or during fiberboard, the rubber made from soybean cake presses soybean rubber powder by soybean rubber powder with solution is improved：Improve solution=1：3.0～6.0 ratio
Example is prepared from.
Present invention also offers the application process of another kind of soybean-based Formaldehyde-free adhesive as above：It is glued in manufacture
During plate, the rubber made from soybean cake presses soybean rubber powder by soybean rubber powder with solution is improved：Improve solution=1：It is prepared by 1.5～2.0 ratio
Form；The adhesive is pressed into single spreading 180～200g/m of amount2Equably it is applied on sheet material, assembly, with 10kg/cm2's
Unit pressure is colded pressing 40min；Then with 12kg/cm at 120 DEG C2Unit pressure hot pressing 10min.
Compared to existing technology, the beneficial effects of the present invention is：
Soybean-based Formaldehyde-free adhesive of the present invention is obtained using the rubber made from soybean cake of bio-based with inorganic glue blending, is had
Cooperative compensating is acted on so that is had performance of preferably colding pressing while adhesive is formaldehydeless nontoxic again, is improved soybean-based gluing
The bonding strength of agent, water resistance is good.In addition, the present invention is mixed using rubber made from soybean cake with inorganic glue, production cost can be effectively reduced,
For example press rubber made from soybean cake：Inorganic glue=50%：50% ratio mixing, can by cost be significantly reduced to from 5000 yuan/ton 3000 yuan/
Ton.The soybean-based Formaldehyde-free adhesive preparation process is simple of the present invention, preparation cost is low.Adhesive is applied to gluing by the present invention
The method of plate is simple to operate, and obtained glued board glued good, High anti bending strength, MOR is high；The present invention is by adhesive
The method for being applied to particieboard or fiberboard is simple to operate, and modest viscosity is easy to uniform applying glue, can effectively solve the problem that existing
Tack is poor when inorganic glue prepares particieboard, the preforming property after wood shavings applying glue is poor, sheet material MOR is low, water sucting thickness expansion
The big problem of rate.
Description of the drawings
Fig. 1 is that inorganic glue mixed proportion and sheet material are colded pressing effect, anti-in soybean-based Formaldehyde-free adhesive of the present invention
The coordinate curve of folding intensity.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and detailed description.
A kind of soybean-based Formaldehyde-free adhesive, is made up of rubber made from soybean cake with inorganic glue blending.
Wherein, rubber made from soybean cake is by soybean rubber powder by soybean rubber powder with improvement solution：Improve solution=1：1.5～6.0 ratio
Example is prepared from.Specifically, one kind in defatted soy flour, FSPC, the soybean protein isolate of soybean rubber powder or
Arbitrarily two or more mixtures.Improving solution includes 20～80 parts of water, 0.1～10 part of modifying agent, 5～30 parts of crosslinking agent and adjusts
0.05～5 part of agent of section；Wherein, the modifying agent is NaOH, potassium hydroxide, ammoniacal liquor, ammonium chloride, urea, Boratex, silicic acid
One or more in sodium, lauryl sodium sulfate, neopelex.The crosslinking agent is carbon disulfide, two thio
Ethylene carbonate, trithiocarbonic acid ethyl, thiocarbamide, potassium xanthate, polyamine amide epoxychloropropane, polyvinyl alcohol, aqueous ring
One or more in oxygen tree fat.The conditioning agent is citric acid, oxalic acid, tartaric acid, aliphatic acid, acetic acid, sorbic acid, apple
One or more in acid, benzoic acid.
Wherein, inorganic glue is prepared as follows by magnesia, magnesium chloride, water and is formed：First magnesium chloride is mixed with water
It is even to make the magnesium chloride brine that Baume degrees is 25 °, proportion is 1.208, then by magnesia that purity is 85% by magnesia：Chlorine
Change the magnesium aqueous solution=1:1 ratio is added and is well mixed in magnesium chloride brine.
As shown in table 1, rubber made from soybean cake is formaldehydeless nontoxic, is reproducible natural glue, with effect of preferably colding pressing, but
Bonding strength is poor, viscosity height is not easy to applying glue.Inorganic glue has good bonding strength and rupture strength, but in manufacture wood-based plate
When, the poor effect of colding pressing of cold pressing process.The present invention has found through multiple experiment, rubber made from soybean cake is blended in proportion with inorganic glue
Afterwards, soybean base adhesive can be made to obtain preferable cold-pressing property, and with preferably bonding strength and rupture strength, in wood-based plate
There is excellent operability in manufacturing industry.
The rubber made from soybean cake of table 1, inorganic glue and soybean-based Formaldehyde-free adhesive Performance comparision
The determination of inorganic glue and rubber made from soybean cake blending ratio：
By inorganic glue in the ratio 0% being blended with rubber made from soybean cake, 10%, 20%, 30%, 40%, 50%, 60%, 70%,
80%th, 90% 10 kinds of adhesive are made, every kind of adhesive is divided into 5 groups carries out parallel test, and test inorganic glue is blended with rubber made from soybean cake
Ratio is to the effect of colding pressing of wood-based plate, the impact of rupture strength.Process of the test is as follows：
1) thickness is taken for 1.4mm, the board using poplar board that moisture content is 9%～13%, it is standby；
2) above-mentioned adhesive is pressed into single spreading 180～200g/m of amount2Equably be applied in brachymedial plate it is two-sided on；
3) by traditional veneer combination, according to plate, brachymedial plate, backboard in panel, brachymedial plate, length, five doublings are combined into
Plywood；
4) by the five doubling plywood bases for combining, send into cold press and colded pressing, the unit pressure colded pressing is 10kg/cm2、
The time cold pressing for 40min, test is colded pressing effect；
5) the glued slab after colding pressing, sends into and carry out in hot press hot pressing, and the temperature of hot pressing is 120 DEG C, unit pressure
For 12kg/cm2, hot pressing time be 10min, test rupture strength.
The test effect of every kind of per group of adhesive is recorded, is averaged, make inorganic glue blending ratio (X-axis)-effect of colding pressing
Really (Y-axis) curve map, inorganic glue blending ratio (X-axis)-rupture strength (Y-axis) curve map, as a result as shown in Figure 1.Wherein, cold pressing
Effect is well very 100%, and excessively poor is 0%.
As shown in Figure 1, with the increase of inorganic glue and the blending ratio of rubber made from soybean cake, adhesive colds pressing effect increasingly
Difference, when the blending ratio of inorganic glue is more than 50%, effect of colding pressing declines very fast；With inorganic glue and the blending ratio of rubber made from soybean cake
Increase, the rupture strength more and more higher of adhesive, but growth rate is more slow relative to effect rate of descent of colding pressing.Inorganic
The blending ratio of glue in 10～70% it is interval when, adhesive cold pressing effect and rupture strength it is preferable.Therefore, it is of the present invention
Soybean-based Formaldehyde-free adhesive include following component by mass percentage：Rubber made from soybean cake 30～90% and inorganic glue 10～
70%.
Present invention also offers a kind of application of soybean-based Formaldehyde-free adhesive as above in wood-based plate manufacturing industry.
Used as the preferred embodiment of the present invention, soybean-based Formaldehyde-free adhesive of the present invention includes following by quality
The component of percentage meter：Rubber made from soybean cake 30～70% and inorganic glue 30～70%.Present invention also offers a kind of as above big
The application process of beans base Formaldehyde-free adhesive：When particieboard or fiberboard is manufactured, the rubber made from soybean cake is by soybean rubber powder and improvement
Solution presses soybean rubber powder：Improve solution=1：3.0～6.0 ratio is prepared from.
Another preferred embodiment as the present invention, soybean-based Formaldehyde-free adhesive of the present invention includes following pressing
The component of mass percentage：Rubber made from soybean cake 40～90% and inorganic glue 10～60%.Present invention also offers another kind as above institute
The application process of the soybean-based Formaldehyde-free adhesive stated：When glued board is manufactured, the rubber made from soybean cake is molten with improvement by soybean rubber powder
Liquid presses soybean rubber powder：Improve solution=1：1.5～2.0 ratio is prepared from；By the adhesive press single spreading amount 180～
200g/m2Equably it is applied on sheet material, assembly, with 10kg/cm2Unit pressure cold pressing 40min；Then at 120 DEG C with
12kg/cm2Unit pressure hot pressing 10min.With glued board obtained in the application process glued good, High anti bending strength, quiet song
Intensity is high.
Embodiment 1：
A kind of method that soybean-based Formaldehyde-free adhesive is applied to glued board, comprises the following steps：
1) preparation of rubber made from soybean cake：Take soybean rubber powder and improve solution by soybean rubber powder：Improve solution=1：2 ratio mixing
Uniformly, rubber made from soybean cake is made standby；
2) preparation of inorganic glue：Take magnesium chloride and be mixed and made into the magnesium chloride water that Baume degrees is 25 °, proportion is 1.208 with water
Solution, weighs magnesia that purity is 85% with by magnesia：Magnesium chloride brine=1:1 ratio adds magnesium chloride brine
In be well mixed, make inorganic glue standby；
3) by above-mentioned rubber made from soybean cake and inorganic glue with rubber made from soybean cake:Inorganic glue=70%:30% ratio blending, is sufficiently stirred for
It is even, adhesive is obtained, it is standby；
4) it is 1.4mm, the board using poplar board that moisture content is 9%～13% to take thickness, and above-mentioned adhesive is pressed into single spreading amount
180～200g/m2Equably be applied in brachymedial plate it is two-sided on；
5) by traditional veneer combination, according to plate, brachymedial plate, backboard in panel, brachymedial plate, length, five doublings are combined into
Plywood；
6) by the five doubling plywood bases for combining, send into cold press and colded pressing, the unit pressure colded pressing is 10kg/cm2、
The time cold pressing for 40min, effect of colding pressing is good, each layer veneer tight bond；
5) the glued slab after colding pressing, sending in hot press carries out hot pressing, 120 DEG C of the temperature of hot pressing, 12kg/cm2, heat
The pressure time is 10min, and glued board is obtained.
Dipping and stripping test is carried out to above glued board, moisture resistant bonding intensity is detected, process of the test is as follows：Impregnate by I classes
Sample is placed in 100 DEG C of boiling water and boils 4h by disbonded test, and taking-up is placed in 63 DEG C of drying box and is dried 20h, then puts on sample
Put and 4h is boiled in boiling water, be placed in again after taking-up in 63 DEG C of drying boxes and be dried 3h.
As a result：It is glued good between each glue-line of observation sample, without stripping and lamination.
Checking of static bending intensity is carried out to above glued board, its MOR be 54.0MPa, it can be seen that its MOR compared with
It is good.
Embodiment 2：
A kind of method that soybean-based Formaldehyde-free adhesive is applied to glued board, comprises the following steps：
1) preparation of rubber made from soybean cake：Take soybean rubber powder and improve solution by soybean rubber powder：Improve solution=1：2 ratio mixing
Uniformly, rubber made from soybean cake is made standby；
2) preparation of inorganic glue：Take magnesium chloride and be mixed and made into the magnesium chloride water that Baume degrees is 25 °, proportion is 1.208 with water
Solution, weighs magnesia that purity is 85% with by magnesia：Magnesium chloride brine=1:1 ratio adds magnesium chloride brine
In be well mixed, make inorganic glue standby；
3) by above-mentioned rubber made from soybean cake and inorganic glue with rubber made from soybean cake:Inorganic glue=60%:40% ratio blending, is sufficiently stirred for
It is even, adhesive is obtained, it is standby；
4) it is 1.4mm, the board using poplar board that moisture content is 9%～13% to take thickness, and above-mentioned adhesive is pressed into single spreading amount
180～200g/m2Equably be applied in brachymedial plate it is two-sided on；
5) by traditional veneer combination, according to plate, brachymedial plate, backboard in panel, brachymedial plate, length, five doublings are combined into
Plywood；
6) by the five doubling plywood bases for combining, send into cold press and colded pressing, the unit pressure colded pressing is 10kg/cm2、
The time cold pressing for 40min, effect of colding pressing is good, each layer veneer tight bond；
5) the glued slab after colding pressing, sending in hot press carries out hot pressing, 120 DEG C of the temperature of hot pressing, 12kg/cm2, heat
The pressure time is 10min, and glued board is obtained.
Dipping and stripping test is carried out to above glued board, moisture resistant bonding intensity is detected, process of the test is as follows：Impregnate by I classes
Sample is placed in 100 DEG C of boiling water and boils 4h by disbonded test, and taking-up is placed in 63 DEG C of drying box and is dried 20h, then puts on sample
Put and 4h is boiled in boiling water, be placed in again after taking-up in 63 DEG C of drying boxes and be dried 3h.
As a result：It is glued good between each glue-line of observation sample, without stripping and lamination.
Checking of static bending intensity is carried out to above glued board, its MOR be 54.3MPa, it can be seen that its MOR compared with
It is good.
Embodiment 3：
A kind of method that soybean-based Formaldehyde-free adhesive is applied to glued board, comprises the following steps：
1) preparation of rubber made from soybean cake：Take soybean rubber powder and improve solution by soybean rubber powder：Improve solution=1：2 ratio mixing
Uniformly, rubber made from soybean cake is made standby；
2) preparation of inorganic glue：Take magnesium chloride and be mixed and made into the magnesium chloride water that Baume degrees is 25 °, proportion is 1.208 with water
Solution, weighs magnesia that purity is 85% with by magnesia：Magnesium chloride brine=1:1 ratio adds magnesium chloride brine
In be well mixed, make inorganic glue standby；
3) by above-mentioned rubber made from soybean cake and inorganic glue with rubber made from soybean cake:Inorganic glue=50%:50% ratio blending, is sufficiently stirred for
It is even, adhesive is obtained, it is standby；
4) it is 1.4mm, the board using poplar board that moisture content is 9%～13% to take thickness, and above-mentioned adhesive is pressed into single spreading amount
180～200g/m2Equably be applied in brachymedial plate it is two-sided on；
5) by traditional veneer combination, according to plate, brachymedial plate, backboard in panel, brachymedial plate, length, five doublings are combined into
Plywood；
6) by the five doubling plywood bases for combining, send into cold press and colded pressing, the unit pressure colded pressing is 10kg/cm2、
The time cold pressing for 40min, effect of colding pressing is good, each layer veneer tight bond；
5) the glued slab after colding pressing, sending in hot press carries out hot pressing, 120 DEG C of the temperature of hot pressing, 12kg/cm2, heat
The pressure time is 10min, and glued board is obtained.
Dipping and stripping test is carried out to above glued board, moisture resistant bonding intensity is detected, process of the test is as follows：Impregnate by I classes
Sample is placed in 100 DEG C of boiling water and boils 4h by disbonded test, and taking-up is placed in 63 DEG C of drying box and is dried 20h, then puts on sample
Put and 4h is boiled in boiling water, be placed in again after taking-up in 63 DEG C of drying boxes and be dried 3h.
As a result：It is glued good between each glue-line of observation sample, without stripping and lamination.
Checking of static bending intensity is carried out to above glued board, its MOR be 55.6MPa, it can be seen that its MOR compared with
It is good.
Embodiment 4：
A kind of method that soybean-based Formaldehyde-free adhesive is applied to particieboard, comprises the following steps：
1) preparation of rubber made from soybean cake：Take soybean rubber powder and improve solution, by soybean rubber powder：Improve solution=1：5 ratio is mixed
Close uniform, make rubber made from soybean cake standby；
2) preparation of inorganic glue：It is water-soluble with the magnesium chloride that water is mixed and made into 25 ° of Baume degrees, proportion is 1.208 to take magnesium chloride
Liquid, weighs magnesia that purity is 85% with by magnesia：Magnesium chloride=1：1 ratio adds mixing in magnesium chloride brine equal
It is even, make inorganic glue standby；
3) by above-mentioned rubber made from soybean cake and inorganic glue with rubber made from soybean cake：Inorganic glue=50%：50% ratio blending, is sufficiently stirred for
It is even, adhesive is obtained, it is standby；
4) take moisture content less than 8%, through thin wooden shavings, the wood chip of the screening of 100 mesh sieve, then weigh wooden shavings with
The above-mentioned adhesive of the 20% of the gross weight of wood chip is thoroughly mixed with wood shavings, wood chip；
5) wood shavings of applying glue, wood chip are mated formation on iron and steel pallet, through precompressed, bulk wood shavings slab is pressed into
The slab of denser；Then slab is sent in hot press together with iron and steel pallet, is 115 DEG C, unit pressure in temperature
For 18kg/cm2Under conditions of hot pressing 27min, make the thick particieboards of 18mm；
6) particieboard after hot pressing is banked up and is conserved, curing temperature is 80～90 DEG C, and curing time is 48h.
Carry out density measurement experiment, expansion rate of water absorption determination experiment and wet cycle performance respectively to above-mentioned particieboard and determine real
Test, it is as a result as follows：The density of particieboard is 0.78gm/cm3, expansion rate of water absorption be 6.5%, internal bond strength is 0.53Mpa, greatly
The big 0.35Mpa more than required by GB internal bond strength, it can be seen that, the adhesive and application process using the present invention is made
The board quality for obtaining is preferable.
Embodiment 5：
A kind of method that soybean-based Formaldehyde-free adhesive is applied to fiberboard, comprises the following steps：
1) preparation of rubber made from soybean cake：Take soybean rubber powder and improve solution, by soybean rubber powder：Improve solution=1：6 ratio is mixed
Close uniform, make rubber made from soybean cake standby；
2) preparation of inorganic glue：It is water-soluble with the magnesium chloride that water is mixed and made into 25 ° of Baume degrees, proportion is 1.208 to take magnesium chloride
Liquid, weighs magnesia that purity is 85% with by magnesia：Magnesium chloride=1：1 ratio adds mixing in magnesium chloride brine equal
It is even, make inorganic glue standby；
3) by above-mentioned rubber made from soybean cake and inorganic glue with rubber made from soybean cake：Inorganic glue=60%：40% ratio blending, is sufficiently stirred for
It is even, adhesive is obtained, it is standby；
4) take moisture content less than 8% lumber fibre, then weigh lumber fibre weight 25% above-mentioned adhesive, with fibre
Dimension is thoroughly mixed；
5) fiber lay down of applying glue is mounted on iron and steel pallet, through precompressed, bulk fibre mat is pressed into and is compared
Closely knit slab；By slab together with iron and steel pallet be sent in hot press temperature be 115 DEG C, unit pressure be 20kg/cm2
Under conditions of hot pressing 16min, make the thick fiberboards of 9mm；
6) particieboard after hot pressing is banked up and is conserved, curing temperature is 80～90 DEG C, and curing time is 48h.
Carry out density measurement experiment, expansion rate of water absorption determination experiment and wet cycle performance respectively to above-mentioned fiberboard and determine real
Test, it is as a result as follows：The density of the fiberboard is 0.95gm/cm3, expansion rate of water absorption be 4.5%, internal bond strength is 0.48Mpa,
Substantially exceed the 0.35Mpa required by GB internal bond strength, it can be seen that, the adhesive and application process institute using the present invention
Obtained fiberboard better quality, it is satisfactory.
Above-mentioned embodiment is only the preferred embodiment of the present invention, it is impossible to limit the scope of protection of the invention with this,
The change and replacement of any unsubstantiality that those skilled in the art is done on the basis of the present invention belongs to institute of the present invention
Claimed scope.
Claims (10)
1. a kind of soybean-based Formaldehyde-free adhesive, it is characterised in that：Including following component by mass percentage：Rubber made from soybean cake 30
～90% and inorganic glue 10～70%.
2. soybean-based Formaldehyde-free adhesive according to claim 1, it is characterised in that：Including it is following by mass percentage
Component：Rubber made from soybean cake 30～70% and inorganic glue 30～70%.
3. soybean-based Formaldehyde-free adhesive according to claim 1, it is characterised in that：Including it is following by mass percentage
Component：Rubber made from soybean cake 40～90% and inorganic glue 10～60%.
4. soybean-based Formaldehyde-free adhesive according to claims 1 to 3, it is characterised in that：The rubber made from soybean cake is by rubber made from soybean cake
Powder presses soybean rubber powder with solution is improved：Improve solution=1：1.5～6.0 ratio is prepared from.
5. soybean-based Formaldehyde-free adhesive according to claim 4, it is characterised in that：The soybean rubber powder is big selected from degreasing
One kind or arbitrarily two or more mixtures in bean powder, FSPC, soybean protein isolate.
6. soybean-based Formaldehyde-free adhesive according to claim 4, it is characterised in that：It is described improvement solution include water 20～
0.05～5 part of 80 parts, 0.1～10 part of modifying agent, 5～30 parts of crosslinking agent and conditioning agent；Wherein, the modifying agent is hydroxide
In sodium, potassium hydroxide, ammoniacal liquor, ammonium chloride, urea, Boratex, sodium metasilicate, lauryl sodium sulfate, neopelex
One or more.
7. soybean-based Formaldehyde-free adhesive according to claims 1 to 3, it is characterised in that：The inorganic glue by magnesia,
Magnesium chloride, water are prepared as follows and form：It is 1.208 first magnesium chloride to be well mixed with water and makes Baume degrees for 25 °, proportion
Magnesium chloride brine, then by magnesia that purity is 85% by magnesia：Magnesium chloride brine=1:1 ratio adds chlorination
It is well mixed in the magnesium aqueous solution.
8. application of a kind of soybean-based Formaldehyde-free adhesive as described in claims 1 to 3 in wood-based plate manufacturing industry.
9. a kind of application process of soybean-based Formaldehyde-free adhesive as claimed in claim 2, it is characterised in that：In manufacture wood shavings
When plate or fiberboard, the rubber made from soybean cake presses soybean rubber powder by soybean rubber powder with solution is improved：Improve solution=1：3.0～6.0
Ratio is prepared from.
10. a kind of application process of soybean-based Formaldehyde-free adhesive as claimed in claim 3, it is characterised in that：In manufacture glue
During plywood, the rubber made from soybean cake presses soybean rubber powder by soybean rubber powder with solution is improved：Improve solution=1：1.5～2.0 ratio system
It is standby to form；The adhesive is pressed into single spreading 180～200g/m of amount2Equably it is applied on sheet material, assembly, with 10kg/cm2
Unit pressure cold pressing 40min；Then with 12kg/cm at 120 DEG C2Unit pressure hot pressing 10min.
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| CN201610988462.8A CN106590523A (en) | 2016-11-10 | 2016-11-10 | Soybean-based formaldehyde-free adhesive and application methods thereof |
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| CN201610988462.8A CN106590523A (en) | 2016-11-10 | 2016-11-10 | Soybean-based formaldehyde-free adhesive and application methods thereof |
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| CN112720769A (en) * | 2020-12-25 | 2021-04-30 | 浙江农林大学 | Preparation method of environment-friendly high-strength wood fiber-based composite material |
| CN114958299A (en) * | 2022-07-11 | 2022-08-30 | 桂佳琳 | Aldehyde-free adhesive for artificial board |
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| CN117445124A (en) * | 2023-10-24 | 2024-01-26 | 浙江顺威新材料有限公司 | Density board produced by using soybean protein adhesive and preparation method thereof |
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| CN107325785A (en) * | 2017-08-21 | 2017-11-07 | 含山县茂盛胶合板厂 | A kind of glued board with electro-magnetic screen function |
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| CN114958299A (en) * | 2022-07-11 | 2022-08-30 | 桂佳琳 | Aldehyde-free adhesive for artificial board |
| CN116619496A (en) * | 2023-07-19 | 2023-08-22 | 广东清森美新材料科技有限公司 | Formaldehyde-free light composite board for decoration and preparation method thereof |
| CN116619496B (en) * | 2023-07-19 | 2023-10-13 | 广东清森美新材料科技有限公司 | Formaldehyde-free light composite board for decoration and preparation method thereof |
| CN117445124A (en) * | 2023-10-24 | 2024-01-26 | 浙江顺威新材料有限公司 | Density board produced by using soybean protein adhesive and preparation method thereof |
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