CN110240794A - A kind of mould proof fiber board adhesive - Google Patents

A kind of mould proof fiber board adhesive Download PDF

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Publication number
CN110240794A
CN110240794A CN201910371074.9A CN201910371074A CN110240794A CN 110240794 A CN110240794 A CN 110240794A CN 201910371074 A CN201910371074 A CN 201910371074A CN 110240794 A CN110240794 A CN 110240794A
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CN
China
Prior art keywords
modified
grape pip
parts
volcanic ash
pip powder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910371074.9A
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Chinese (zh)
Inventor
方有元
邵跃骅
罗烈
赵红阳
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Fuyang New Materials Ltd By Share Ltd
Original Assignee
Fuyang New Materials Ltd By Share Ltd
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Filing date
Publication date
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Priority to CN201910371074.9A priority Critical patent/CN110240794A/en
Publication of CN110240794A publication Critical patent/CN110240794A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • B27N1/00—Pretreatment of moulding material
    • B27N1/02—Mixing the material with binding agent
    • B27N1/0209—Methods, e.g. characterised by the composition of the agent
    • 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
    • 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
    • B27N3/08—Moulding or pressing
    • B27N3/10—Moulding of mats
    • B27N3/12—Moulding of mats from fibres
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
    • C08L75/04—Polyurethanes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2227—Oxides; Hydroxides of metals of aluminium
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend

Abstract

The invention discloses a kind of mould proof fiber board adhesives, and adhesive property is stronger, while its fungicidal properties is excellent.Being rich in grape pip has Polyphenols, alcohols, terpene substances, bioactivity with higher, passes it through palmitinic acid and linolenic acid is modified, and a part of esters can be generated, it is wrapped in grape pip powder surface, ester film is formed, it is dispersed in adhesive not only to promote grape pip powder, but also improve its interface binding power, simultaneously, grape pip powder and modified volcanic ash synergistic effect after modification, it is suppressed that the growth and breeding of fiberboard mould are played and cooperate with mould proof effect.

Description

A kind of mould proof fiber board adhesive
Technical field
The invention belongs to field of adhesive technology, especially a kind of mould proof fiber board adhesive.
Background technique
With the worldwide forest reserves sharply reduce and China Natural Forest Conservation Programme journey implementation, artificial board by To more and more concerns, in artificial board, the performance of adhesive is directly related to the quality of plate, adhesive strength and The durable performances such as weather-proof are better than fiberboard itself.However, existing polyurethane adhesive have the defects that it is certain: adhesion strength is not Enough height, heat resistance is poor, and fungicidal properties is not good enough.
Summary of the invention
In view of the above-mentioned problems, the present invention is intended to provide a kind of mould proof fiber board adhesive.
The invention is realized by the following technical scheme:
A kind of mould proof fiber board adhesive, is made of raw material from the following weight:
Modified grape pip powder 5-10, modified volcanic ash 5-10, Phenolic resin emulsion 10-20, polyurethane prepolymer 80-100, castor-oil plant Oily 5-8, (2- ethyl hexyl) ester of phthalic acid two 3-5, organic palladium catalyst 0.5-1；
The Phenolic resin emulsion solid content is 25-30%.
Further, preparation method are as follows: modified grape pip powder and modified volcanic ash are mixed, phenolic aldehyde tree is added thereto Fat liquor is transferred in ball mill, then the ball milling 20-30min at 10-12 DEG C places 2- at 50-60 DEG C, 2.3-2.5MPa After 3h, gains are added in polyurethane prepolymer after drying at 40-50 DEG C, and acetone, castor oil, neighbour are added by filtering Phthalic acid two (2- ethyl hexyl) ester, organic palladium catalyst, are transferred in reaction kettle, are stirred to react 50-60min at 80-90 DEG C, ?；The addition of Phenolic resin emulsion acts synergistically with polyurethane bottom, enhances the toughness of adhesive, and it is glued strong to improve it Degree.
Further, the modified grape pip powder first carries out freeze-drying removing the preparation method comprises the following steps: take 5-10 parts of grape pips Moisture is then placed in ball mill, and grape pip powder is obtained after ball milling 20-30min, and 2-3 then is added into gained grape pip powder Part palmitinic acid, 2-3 parts of linolenic acids, 10-20 parts of ethyl alcohol, then filter gains after ball milling 20-30min at 60-70 DEG C, Obtain modified grape pip powder；Rich in having Polyphenols, alcohols, terpene substances in grape pip, bioactivity with higher is passed through It crosses palmitinic acid and linolenic acid is modified, a part of esters can be generated, be wrapped in grape pip powder surface, form ester film, not only promote It is dispersed in adhesive into grape pip powder, and improve its interface binding power, meanwhile, it is modified after grape pip powder with Modified volcanic ash synergistic effect, it is suppressed that the growth and breeding of fiberboard mould are played and cooperate with mould proof effect.
Further, 5-10 parts of volcanic ash the preparation method comprises the following steps: is put into the salt of mass fraction 5-10% by the modified volcanic ash In acid solution, it is dispersed with stirring 30-40mn at 40-50 DEG C, 300-500rpm, then filters, is placed at 400-420 DEG C and calcines 1- 2h takes out after cooling, is then add to deionized water gained volcanic ash, and 3-4 parts of hydroxymethyl celluloses are added thereto Sodium and 4-6 parts of polyphosphates, are heated to 82-84 DEG C, and 40-60min is stirred at 100-200rpm, cooling, filter, and wash, and do Modified volcanic ash is obtained after dry；Pozzolanic activity is higher, rich in substances such as silica and aluminium oxide, after HCl treatment, Surface is rich in aluminium ion, is then modified using sodium cellulose glycolate and polyphosphate to it, wherein hydroxymethyl cellulose Carboxylate radical and aluminium ion on sodium main chain form coordination bond cross-linking, and physical absorption occurs for polyphosphate and volcano gray surface, simultaneously Lipophilic group and adhesive occur chemical action and volcanic ash have been sufficiently introduced into the cross-linked network of adhesive under this double action In network, improve its compatibility and interface bond strength with adhesive, as stress concentration point, significantly enhances the glue of adhesive Close intensity.
Beneficial effects of the present invention: invention adhesive is suitable for the preparation of fiberboard, and the fiberboard of preparation has higher Bonding strength, while its fungicidal properties is excellent.Being rich in grape pip has Polyphenols, alcohols, terpene substances, life with higher Object activity, passes it through palmitinic acid and linolenic acid is modified, a part of esters can be generated, be wrapped in grape pip powder surface, shape At ester film, it is dispersed in adhesive not only to promote grape pip powder, but also improve its interface binding power, meanwhile, it was modified Grape pip powder and modified volcanic ash synergistic effect afterwards, it is suppressed that it is mould proof to play collaboration for the growth and breeding of fiberboard mould Effect；Pozzolanic activity is higher, and rich in substances such as silica and aluminium oxide, after HCl treatment, surface is rich in aluminium ion, Then it is modified using sodium cellulose glycolate and polyphosphate, wherein the carboxylate radical on sodium cellulose glycolate main chain Coordination bond cross-linking is formed with aluminium ion, physical absorption, while lipophilic group and adhesive occur for polyphosphate and volcano gray surface Chemical action occurs volcanic ash has been sufficiently introduced into the cross-linked network of adhesive under this double action, improves itself and gluing The compatibility and interface bond strength of agent significantly enhance the bonding strength of adhesive as stress concentration point.
Specific embodiment
Illustrate the present invention with specific embodiment below, but is not limitation of the present invention.
Embodiment 1
A kind of mould proof fiber board adhesive, is made of raw material from the following weight:
Modified grape pip powder 5, modified volcanic ash 5, Phenolic resin emulsion 10, polyurethane prepolymer 80, castor oil 5, O-phthalic Sour two (2- ethyl hexyl) esters 3, organic palladium catalyst 0.5；
The Phenolic resin emulsion solid content is 25%.
Further, preparation method are as follows: modified grape pip powder and modified volcanic ash are mixed, phenolic aldehyde tree is added thereto Fat liquor is transferred in ball mill, the ball milling 20min at 10 DEG C, after then placing 2h at 50 DEG C, 2.3MPa, filtering, by gained It is added in polyurethane prepolymer after object is dry at 40 DEG C, and acetone, castor oil, phthalic acid two (2- ethyl hexyl) is added Ester, organic palladium catalyst, are transferred in reaction kettle, are stirred to react 50min at 80 DEG C.
Further, the modified grape pip powder first carries out freeze-drying and removes water the preparation method comprises the following steps: take 5 parts of grape pips Point, it is then placed in ball mill, grape pip powder is obtained after ball milling 20min, 2 portions of palms are then added into gained grape pip powder Acid, 2 parts of linolenic acids, 10 parts of ethyl alcohol, then filter gains after ball milling 20min at 60 DEG C, obtain modified grape pip powder.
Further, 5 parts of volcanic ash the preparation method comprises the following steps: is put into the hydrochloric acid solution of mass fraction 5% by the modified volcanic ash In, it is dispersed with stirring 30mn at 40 DEG C, 300rpm, then filters, is placed at 400 DEG C and calcines 1h, is taken out after cooling, then by institute It obtains volcanic ash to be add to deionized water, and 3 parts of sodium cellulose glycolates and 4 parts of polyphosphates is added thereto, be heated to 82 DEG C, 40min is stirred at 100 rpm, it is cooling, it filters, washing, modified volcanic ash is obtained after dry.
Embodiment 2
A kind of mould proof fiber board adhesive, is made of raw material from the following weight:
Modified grape pip powder 7, modified volcanic ash 8, Phenolic resin emulsion 15, polyurethane prepolymer 90, castor oil 6, O-phthalic Sour two (2- ethyl hexyl) esters 4, organic palladium catalyst 0.8；
The Phenolic resin emulsion solid content is 26%.
Further, preparation method are as follows: modified grape pip powder and modified volcanic ash are mixed, phenolic aldehyde tree is added thereto Fat liquor is transferred in ball mill, the ball milling 25min at 11 DEG C, after then placing 3h at 55 DEG C, 2.4MPa, filtering, by gained It is added in polyurethane prepolymer after object is dry at 45 DEG C, and acetone, castor oil, phthalic acid two (2- ethyl hexyl) is added Ester, organic palladium catalyst, are transferred in reaction kettle, are stirred to react 55min at 85 DEG C.
Further, the modified grape pip powder first carries out freeze-drying and removes water the preparation method comprises the following steps: take 8 parts of grape pips Point, it is then placed in ball mill, grape pip powder is obtained after ball milling 25min, 3 portions of palms are then added into gained grape pip powder Acid, 3 parts of linolenic acids, 15 parts of ethyl alcohol, then filter gains after ball milling 25min at 65 DEG C, obtain modified grape pip powder.
Further, 8 parts of volcanic ash the preparation method comprises the following steps: is put into the hydrochloric acid solution of mass fraction 7% by the modified volcanic ash In, it is dispersed with stirring 35mn at 45 DEG C, 400rpm, then filters, is placed at 410 DEG C and calcines 2h, is taken out after cooling, then by institute It obtains volcanic ash to be add to deionized water, and 4 parts of sodium cellulose glycolates and 5 parts of polyphosphates is added thereto, be heated to 83 DEG C, 50min is stirred at 150rpm, it is cooling, it filters, washing, modified volcanic ash is obtained after dry.
Embodiment 3
A kind of mould proof fiber board adhesive, is made of raw material from the following weight:
Modified grape pip powder 10, modified volcanic ash 10, Phenolic resin emulsion 20, polyurethane prepolymer 100, castor oil 8, adjacent benzene two Formic acid two (2- ethyl hexyl) ester 5, organic palladium catalyst 1；
The Phenolic resin emulsion solid content is 30%.
Further, preparation method are as follows: modified grape pip powder and modified volcanic ash are mixed, phenolic aldehyde tree is added thereto Fat liquor is transferred in ball mill, the ball milling 30min at 12 DEG C, after then placing 3h at 60 DEG C, 2.5MPa, filtering, by gained It is added in polyurethane prepolymer after object is dry at 50 DEG C, and acetone, castor oil, phthalic acid two (2- ethyl hexyl) is added Ester, organic palladium catalyst, are transferred in reaction kettle, are stirred to react 60min at 90 DEG C.
Further, the modified grape pip powder first carries out freeze-drying and removes water the preparation method comprises the following steps: take 10 parts of grape pips Point, it is then placed in ball mill, grape pip powder is obtained after ball milling 30min, 3 portions of palms are then added into gained grape pip powder Acid, 3 parts of linolenic acids, 20 parts of ethyl alcohol, then filter gains after ball milling 30min at 70 DEG C, obtain modified grape pip powder.
Further, the modified volcanic ash is the preparation method comprises the following steps: the hydrochloric acid that 10 parts of volcanic ash are put into mass fraction 10% is molten In liquid, it is dispersed with stirring 40mn at 50 DEG C, 500rpm, then filters, be placed at 420 DEG C and calcine 2h, taken out after cooling, then will Gained volcanic ash is add to deionized water, and 4 parts of sodium cellulose glycolates and 6 parts of polyphosphates are added thereto, is heated to 84 DEG C, 60min is stirred at 200 rpm, it is cooling, it filters, washing, modified volcanic ash is obtained after dry.
Comparative example 1
This comparative example replaces with common untreated grape pip powder compared to embodiment 2, by modified grape pip powder, in addition to this Method and step it is all the same.
Comparative example 2
This comparative example replaces with common untreated volcanic ash compared to embodiment 2, by modified volcanic ash, side in addition to this Method step is all the same.
Comparative example 3
The addition of Phenolic resin emulsion is omitted compared to embodiment 2 in this comparative example, and method and step in addition to this is homogeneous Together.
Fiberboard preparation
Wood material is subjected to boiling softening, obtains wood fibre, adhesive obtained by each group is placed in glue mixing together with wood fibre In machine, stirring, glue dosage is the 12% of wood fibre quality, is then mated formation into slab template, and with preformer with 150bar Pressure to fibre mat carry out precompressed, then hot pressing temperature be 150 DEG C, hot pressing pressure be 250bar under hot pressing, obtain close Degree is the plate of 0.8g/cm3.
Then fiberboard obtained by each group is tested for the property:
Bonding strength measurement: according to GB/T14074-2006 " fiber board adhesive and its resin method of inspection " standard, using ten thousand The measurement of energetics testing machine.
Mould proof durability characterization: it is 28 DEG C that fiberboard obtained by each group, which is put into temperature, the climatic chamber that humidity is 92% In, it takes out, the mouldy situation of fiberboard is recorded, and its bonding strength is measured after placing 42 days.
Test result is as shown in table 1:
Table 1
Bonding strength/MPa Mouldy situation after 42 days Bonding strength/MPa after 42 days
Embodiment 1 1.25 Be invisible to the naked eye mildew 1.16
Embodiment 2 1.44 Be invisible to the naked eye mildew 1.37
Embodiment 3 1.29 Be invisible to the naked eye mildew 1.21
Comparative example 1 0.66 Go mouldy area 10-50% 0.24
Comparative example 2 0.57 Go mouldy area 10-50% 0.31
Comparative example 3 0.53 Within mildew area 10% 0.46
As can be seen from Table 1, invention adhesive is suitable for the preparation of fiberboard, and the fiberboard of preparation is with higher glued strong Degree, while its fungicidal properties is excellent.

Claims (4)

1. a kind of mould proof fiber board adhesive, which is characterized in that be made of raw material from the following weight:
Modified grape pip powder 5-10, modified volcanic ash 5-10, Phenolic resin emulsion 10-20, polyurethane prepolymer 80-100, castor-oil plant Oily 5-8, (2- ethyl hexyl) ester of phthalic acid two 3-5, organic palladium catalyst 0.5-1；
The Phenolic resin emulsion solid content is 25-30%.
2. a kind of mould proof fiber board adhesive according to claim 1, which is characterized in that preparation method are as follows: will be modified Grape pip powder and modified volcanic ash mixing, Phenolic resin emulsion is added thereto, is transferred in ball mill, the ball milling at 10-12 DEG C 20-30min, after then placing 2-3h at 50-60 DEG C, 2.3-2.5MPa, filtering, by gains at 40-50 DEG C after drying It is added in polyurethane prepolymer, and acetone, castor oil, phthalic acid two (2- ethyl hexyl) ester, organic palladium catalyst is added, It is transferred in reaction kettle, is stirred to react 50-60min at 80-90 DEG C.
3. a kind of mould proof fiber board adhesive according to claim 1, which is characterized in that the modified grape pip powder preparation Method are as follows: take 5-10 parts of grape pips, first carry out freeze-drying and remove moisture, be then placed in ball mill, after ball milling 20-30min Grape pip powder is obtained, 2-3 parts of palmitinic acids, 2-3 parts of linolenic acids, 10-20 parts of ethyl alcohol are then added into gained grape pip powder, then At 60-70 DEG C after ball milling 20-30min, gains are filtered, obtain modified grape pip powder.
4. a kind of mould proof fiber board adhesive according to claim 1, which is characterized in that the modified volcanic ash preparation side Method are as follows: 5-10 parts of volcanic ash are put into the hydrochloric acid solution of mass fraction 5-10%, the stirring point at 40-50 DEG C, 300-500rpm 30-40mn is dissipated, is then filtered, is placed at 400-420 DEG C and calcines 1-2h, takes out after cooling, is then added to gained volcanic ash In deionized water, and 3-4 parts of sodium cellulose glycolates and 4-6 parts of polyphosphates are added thereto, are heated to 82-84 DEG C, 40-60min is stirred under 100-200rpm, it is cooling, it filters, washing, modified volcanic ash is obtained after dry.
CN201910371074.9A 2019-05-06 2019-05-06 A kind of mould proof fiber board adhesive Pending CN110240794A (en)

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Cited By (1)

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Publication number Priority date Publication date Assignee Title
CN112207925A (en) * 2020-10-12 2021-01-12 北华大学 Mildew-proof antibacterial ultrathin density board and preparation method thereof

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