CN108485285A - A kind of novel medium density fibre board (MDF) waterproofing agent and preparation method thereof - Google Patents
A kind of novel medium density fibre board (MDF) waterproofing agent and preparation method thereof Download PDFInfo
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- CN108485285A CN108485285A CN201810160706.2A CN201810160706A CN108485285A CN 108485285 A CN108485285 A CN 108485285A CN 201810160706 A CN201810160706 A CN 201810160706A CN 108485285 A CN108485285 A CN 108485285A
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- lignin
- waterproofing agent
- formaldehyde
- mdf
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L91/00—Compositions of oils, fats or waxes; Compositions of derivatives thereof
- C08L91/06—Waxes
-
- 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
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- 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
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
Abstract
The invention discloses a kind of medium density fibre board (MDF) waterproofing agents, including lignin, formaldehyde, fatty alcohol polyoxyethylene ether, paraffin wax emulsions, polyethylene glycol, octamethylcy-clotetrasiloxane and sodium alkyl sulfonate, and lignin, formaldehyde, fatty alcohol polyoxyethylene ether, paraffin wax emulsions, polyethylene glycol, octamethylcy-clotetrasiloxane and sodium alkyl sulfonate are followed successively by 5 20 parts, 10 20 parts, 2 10 parts, 20 35 parts, 5 15 parts, 20 40 parts, 2 10 parts according to mass fraction.The technology of the present invention is using paraffin, organosilicon, hydroxymethylated lignin as primary raw material, through the processing means such as emulsifying, being grafted and manufactured waterproofing agent, paraffin, organosilicon are taken full advantage of to the water proofing property of wood fibre, the thermal stability that grafting improves waterproofing agent is carried out using lignin, the urea-formaldehyde glue and its fiber for also making the methylol groups and fibre board use in waterproofing agent simultaneously crosslink curing reaction, further increase the mechanical property of fiberboard.
Description
Technical field
The present invention relates to waterproofing agent preparation method technical field, specially a kind of novel medium density fibre board (MDF) waterproofing agent and its
Preparation method.
Background technology
Fiberboard is to apply Lauxite or other synthetic resin, warp using wood fibre or other plant fiber as raw material
Cross the wood-based plate with good physical and mechanical property and machining property made of the processes such as fiber separation, molding, hot pressing
Material.Fiberboard is roughly divided into hardboard, medium density fibre board (MDF) and softboard by density（Low density fiberboard）.Wherein
Though hardboard and high density fiberboard common on the market are different, both there are higher intensity and compactness, has
Standby certain waterproof, humidity resistance；The softboard intensity of low cost is small, and water proofing property is poor, and sound-absorption and heat-insulation is good, is generally used for broadcasting
Room, the siding of cinema and ceiling etc., so to waterproof without particular/special requirement；Medium density fibre board (MDF) is as interior decoration material
The base material of the purposes such as material, furniture, it is desirable that have certain water resistance.
Fiberboard is easy the characteristic that moisture absorption becomes tide because of it, and the scope of application and service life substantially reduce, and hygroscopic deformation is not only
Product appearance is influenced, while also reducing its every mechanical strength.In general, the raw material that production medium density fibre board (MDF) uses are in addition to inhaling
Outside aqueous wood fibre, it is also necessary to waterproofing agent be added, it can be common that wax class additive such as melt paraffin, emulsified wax, at present
Dosage it is larger be paraffin rosin lotion.These waterproofing agents belong to addition type, are physical connection between wood fibre, often without
Method destroys the binding force between paraffin, makes it that can not uniformly be distributed in paraffin fiber system, causes waterproof effect and resistance to
Long property is undesirable.Therefore, a kind of Novel fiberboard waterproofing agent of the present invention and its technology of preparing make it improve fiberboard waterproof
While effect, its every mechanics index of physics is properly increased, the self-value and the scope of application of fibreboard product are increased, for
The above problem, a kind of medium density fibre board (MDF) waterproofing agent of spy's proposition and preparation method thereof.
Invention content
The purpose of the present invention is to provide a kind of medium density fibre board (MDF) waterproofing agents and preparation method thereof, to solve above-mentioned background
The problem of being proposed in technology.
To achieve the above object, the present invention provides the following technical solutions：A kind of medium density fibre board (MDF) waterproofing agent, including it is wooden
Element, formaldehyde, fatty alcohol polyoxyethylene ether, paraffin wax emulsions, polyethylene glycol, octamethylcy-clotetrasiloxane and sodium alkyl sulfonate, and wood
Quality, formaldehyde, fatty alcohol polyoxyethylene ether, paraffin wax emulsions, polyethylene glycol, octamethylcy-clotetrasiloxane and sodium alkyl sulfonate according to
Mass fraction is followed successively by 5-20 parts, 10-20 parts, 2-10 parts, 20-35 parts, 5-15 parts, 20-40 parts, 2-10 parts.
The lignin, formaldehyde, fatty alcohol polyoxyethylene ether, paraffin wax emulsions, polyethylene glycol, octamethylcy-clotetrasiloxane and
Sodium alkyl sulfonate is followed successively by 13 parts, 12 parts, 4 parts, 27 parts, 7 parts, 38 parts, 6 parts according to mass fraction.
A kind of preparation method of medium density fibre board (MDF) waterproofing agent, including following preparation process：
S1：Lignin, formaldehyde are added in reaction kettle, reaction kettle is kept the temperature after heating, lignin, formaldehyde is made to keep the temperature
It is reacted in reaction kettle under state, obtains methylolated lignin；
S2：Fatty alcohol polyoxyethylene ether, paraffin wax emulsions are put into reaction kettle and are stirred, and temperature is risen to 60-70 DEG C, so
Polyethylene glycol, octamethylcy-clotetrasiloxane, sodium alkyl sulfonate are added afterwards, forms lotion after reacting.
S3：Methylolated lignin is added in above-mentioned emulsion, 1-2 hours are reacted at 80 DEG C to get to Novel fiberboard
Waterproofing agent.
Reaction kettle is kept the temperature after heating up in the S1, lignin, formaldehyde is made to be carried out in reaction kettle under keeping warm mode
Stop after reacting specifically, the temperature of reaction kettle is increased to 80-90 DEG C, then lignin, formaldehyde is made to be reacted under keeping warm mode
Reaction 2-4h is carried out in kettle.
The reaction time required after addition polyethylene glycol, octamethylcy-clotetrasiloxane, sodium alkyl sulfonate is many in the S2
In 30 minutes.
The paraffin wax emulsions ingredient includes semi-refined paraffin wax（56#）, emulsifier, white oil（7#）And pure water.
The preparation process of the paraffin wax emulsions is：By paraffin（56#）, emulsifier and white oil（7#）Container mixing is poured into, and
Container is carried out to be heated to 95 DEG C of degree stoppings, waiting for paraffin（56#）Start to stir after fully melting.
The time of liquid agitation in container is no less than 20 minutes.
The emulsifier is the NaOH solution of 30% concentration.
Compared with prior art, the beneficial effects of the invention are as follows：
（1）The technology of the present invention is using paraffin, organosilicon, hydroxymethylated lignin as primary raw material, through the processing hand such as emulsifying, being grafted
Section and manufactured waterproofing agent, take full advantage of paraffin, organosilicon to the water proofing property of wood fibre, carry out grafting using lignin and carry
The high thermal stability of waterproofing agent, while also making the urea-formaldehyde glue and its fiber hair of the methylol groups and fibre board use in waterproofing agent
Raw cross-linking and curing reaction, further increases the mechanical property of fiberboard.
（2）The technology of the present invention makes paraffin, organosilicon be dispersed in fiber surface using chemical methodes such as emulsification, grafting,
Greatly improve waterproof efficacy of the new water repellent to fiberboard.
（3）Raw material sources of the present invention are abundant, simple production process, Storage period length, good product quality, assign fiberboard tool
There is high water resistance.
Specific implementation mode
The following is a clear and complete description of the technical scheme in the embodiments of the invention, it is clear that described embodiment
Only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, the common skill in this field
The every other embodiment that art personnel are obtained without making creative work belongs to the model that the present invention protects
It encloses.
The first technical solution provided by the invention：A kind of medium density fibre board (MDF) waterproofing agent, including lignin, formaldehyde, fat
Fat alcohol polyoxyethylene ether, paraffin wax emulsions, polyethylene glycol, octamethylcy-clotetrasiloxane and sodium alkyl sulfonate, and lignin, formaldehyde,
Fatty alcohol polyoxyethylene ether, paraffin wax emulsions, polyethylene glycol, octamethylcy-clotetrasiloxane and sodium alkyl sulfonate according to mass fraction according to
Secondary is 5-20 parts, 10-20 parts, 2-10 parts, 20-35 parts, 5-15 parts, 20-40 parts, 2-10 parts.
A kind of preparation method of medium density fibre board (MDF) waterproofing agent, including following preparation process：
S1：Lignin, formaldehyde are added in reaction kettle, reaction kettle is kept the temperature after heating, lignin, formaldehyde is made to keep the temperature
It is reacted in reaction kettle under state, obtains methylolated lignin；
S2：Fatty alcohol polyoxyethylene ether, paraffin wax emulsions are put into reaction kettle and are stirred, and temperature is risen to 60-70 DEG C, so
Polyethylene glycol, octamethylcy-clotetrasiloxane, sodium alkyl sulfonate are added afterwards, forms lotion after reacting.
S3：Methylolated lignin is added in above-mentioned emulsion, 1-2 hours are reacted at 80 DEG C to get to Novel fiberboard
Waterproofing agent.
Reaction kettle is kept the temperature after heating up in S1, lignin, formaldehyde is made to be reacted in reaction kettle under keeping warm mode
Specifically, stopping after the temperature of reaction kettle is increased to 80-90 DEG C, then make lignin, formaldehyde in reaction kettle under keeping warm mode
Carry out reaction 2-4h.
The reaction time required after addition polyethylene glycol, octamethylcy-clotetrasiloxane, sodium alkyl sulfonate is no less than 30 in S2
Minute.
Paraffin wax emulsions ingredient includes semi-refined paraffin wax（56#）, emulsifier, white oil（7#）And pure water.
The preparation process of paraffin wax emulsions is：By paraffin（56#）, emulsifier and white oil（7#）Container mixing is poured into, and to holding
Device carries out being heated to 95 DEG C of degree stoppings, waiting for paraffin（56#）Start to stir after fully melting.
The time of liquid agitation in container is no less than 20 minutes.
Emulsifier is the NaOH solution of 30% concentration.
（1）The technology of the present invention is using paraffin, organosilicon, hydroxymethylated lignin as primary raw material, through emulsifying, being grafted etc.
Reason means and manufactured waterproofing agent, are taken full advantage of paraffin, organosilicon to the water proofing property of wood fibre, are connect using lignin
Branch improves the thermal stability of waterproofing agent, while also making the urea-formaldehyde glue and its fibre of the methylol groups and fibre board use in waterproofing agent
Dimension crosslinks curing reaction, further increases the mechanical property of fiberboard.
（2）The technology of the present invention makes paraffin, organosilicon be dispersed in fiber surface using chemical methodes such as emulsification, grafting,
Greatly improve waterproof efficacy of the new water repellent to fiberboard.
（3）Raw material sources of the present invention are abundant, simple production process, Storage period length, good product quality, assign fiberboard tool
There is high water resistance.
Second of technical solution provided by the invention：A kind of medium density fibre board (MDF) waterproofing agent, including lignin, formaldehyde, fat
Fat alcohol polyoxyethylene ether, paraffin wax emulsions, polyethylene glycol, octamethylcy-clotetrasiloxane and sodium alkyl sulfonate, lignin, formaldehyde, fat
Fat alcohol polyoxyethylene ether, paraffin wax emulsions, polyethylene glycol, octamethylcy-clotetrasiloxane and sodium alkyl sulfonate according to mass fraction successively
It is 13 parts, 12 parts, 4 parts, 27 parts, 7 parts, 38 parts, 6 parts.
A kind of preparation method of medium density fibre board (MDF) waterproofing agent, including following preparation process：
S1：Lignin, formaldehyde are added in reaction kettle, reaction kettle is kept the temperature after heating, lignin, formaldehyde is made to keep the temperature
It is reacted in reaction kettle under state, obtains methylolated lignin；
S2：Fatty alcohol polyoxyethylene ether, paraffin wax emulsions are put into reaction kettle and are stirred, and temperature is risen to 60-70 DEG C, so
Polyethylene glycol, octamethylcy-clotetrasiloxane, sodium alkyl sulfonate are added afterwards, forms lotion after reacting.
S3：Methylolated lignin is added in above-mentioned emulsion, 1-2 hours are reacted at 80 DEG C to get to Novel fiberboard
Waterproofing agent.
Reaction kettle is kept the temperature after heating up in S1, lignin, formaldehyde is made to be reacted in reaction kettle under keeping warm mode
Specifically, stopping after the temperature of reaction kettle is increased to 80-90 DEG C, then make lignin, formaldehyde in reaction kettle under keeping warm mode
Carry out reaction 2-4h.
The reaction time required after addition polyethylene glycol, octamethylcy-clotetrasiloxane, sodium alkyl sulfonate is no less than 30 in S2
Minute.
Paraffin wax emulsions ingredient includes semi-refined paraffin wax（56#）, emulsifier, white oil（7#）And pure water.
The preparation process of paraffin wax emulsions is：By paraffin（56#）, emulsifier and white oil（7#）Container mixing is poured into, and to holding
Device carries out being heated to 95 DEG C of degree stoppings, waiting for paraffin（56#）Start to stir after fully melting.
The time of liquid agitation in container is no less than 20 minutes.
Emulsifier is the NaOH solution of 30% concentration.
（1）The technology of the present invention is using paraffin, organosilicon, hydroxymethylated lignin as primary raw material, through emulsifying, being grafted etc.
Reason means and manufactured waterproofing agent, are taken full advantage of paraffin, organosilicon to the water proofing property of wood fibre, are connect using lignin
Branch improves the thermal stability of waterproofing agent, while also making the urea-formaldehyde glue and its fibre of the methylol groups and fibre board use in waterproofing agent
Dimension crosslinks curing reaction, further increases the mechanical property of fiberboard.
（2）The technology of the present invention makes paraffin, organosilicon be dispersed in fiber surface using chemical methodes such as emulsification, grafting,
Greatly improve waterproof efficacy of the new water repellent to fiberboard.
（3）Raw material sources of the present invention are abundant, simple production process, Storage period length, good product quality, assign fiberboard tool
There is high water resistance.
In the present invention unless specifically defined or limited otherwise, term " installation ", " setting ", " connection ", " fixation ",
Terms such as " being screwed on " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be with
It is mechanical connection, can also be electrical connection；It can be directly connected, can also can be indirectly connected through an intermediary two
The interaction relationship of connection or two elements inside a element, unless otherwise restricted clearly, for the common of this field
For technical staff, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (9)
1. a kind of medium density fibre board (MDF) waterproofing agent, which is characterized in that including lignin, formaldehyde, fatty alcohol polyoxyethylene ether, paraffin
Lotion, polyethylene glycol, octamethylcy-clotetrasiloxane and sodium alkyl sulfonate, and lignin, formaldehyde, fatty alcohol polyoxyethylene ether, stone
Wax emulsion, polyethylene glycol, octamethylcy-clotetrasiloxane and sodium alkyl sulfonate according to mass fraction be followed successively by 5-20 parts, 10-20 parts,
2-10 parts, 20-35 parts, 5-15 parts, 20-40 parts, 2-10 parts.
2. a kind of medium density fibre board (MDF) waterproofing agent according to claim 1, which is characterized in that the lignin, formaldehyde, fat
Fat alcohol polyoxyethylene ether, paraffin wax emulsions, polyethylene glycol, octamethylcy-clotetrasiloxane and sodium alkyl sulfonate according to mass fraction successively
It is 13 parts, 12 parts, 4 parts, 27 parts, 7 parts, 38 parts, 6 parts.
3. a kind of preparation method of medium density fibre board (MDF) waterproofing agent according to claim 1 or 2, which is characterized in that including
Following preparation process：
S1：Lignin, formaldehyde are added in reaction kettle, reaction kettle is kept the temperature after heating, lignin, formaldehyde is made to keep the temperature
It is reacted in reaction kettle under state, obtains methylolated lignin；
S2：Fatty alcohol polyoxyethylene ether, paraffin wax emulsions are put into reaction kettle and are stirred, and temperature is risen to 60-70 DEG C, so
Polyethylene glycol, octamethylcy-clotetrasiloxane, sodium alkyl sulfonate are added afterwards, forms lotion after reacting；
S3：Methylolated lignin is added in above-mentioned emulsion, 1-2 hours are reacted at 80 DEG C to get to Novel fiberboard waterproof
Agent.
4. a kind of preparation method of medium density fibre board (MDF) waterproofing agent according to claim 3, it is characterised in that：In the S1
Reaction kettle is kept the temperature after heating, so that lignin, formaldehyde is reacted in reaction kettle under keeping warm mode specifically, will reaction
The temperature of kettle stops after being increased to 80-90 DEG C, then lignin, formaldehyde is made to carry out reaction 2-4h in reaction kettle under keeping warm mode.
5. a kind of preparation method of medium density fibre board (MDF) waterproofing agent according to claim 4, it is characterised in that：In the S2
Reaction time needed for after addition polyethylene glycol, octamethylcy-clotetrasiloxane, sodium alkyl sulfonate is no less than 30 minutes.
6. a kind of preparation method of medium density fibre board (MDF) waterproofing agent according to claim 5, it is characterised in that：The paraffin
Emulsion components include semi-refined paraffin wax（56#）, emulsifier, white oil（7#）And pure water.
7. a kind of a kind of manufacture of the no fire-retardant Sunflower Pole lumber core of aldehyde as described in claim 1 according to claim 6
Method, it is characterised in that：The preparation process of the paraffin wax emulsions is：By paraffin（56#）, emulsifier and white oil（7#）Pour into container
Mixing, and container is carried out to be heated to 95 DEG C of degree stoppings, waiting for paraffin（56#）Start to stir after fully melting.
8. a kind of preparation method of medium density fibre board (MDF) waterproofing agent according to claim 7, it is characterised in that：To in container
The time of liquid agitation is no less than 20 minutes.
9. a kind of preparation method of medium density fibre board (MDF) waterproofing agent according to claim 8, it is characterised in that：The emulsification
Agent is the NaOH solution of 30% concentration.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810160706.2A CN108485285A (en) | 2018-02-27 | 2018-02-27 | A kind of novel medium density fibre board (MDF) waterproofing agent and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810160706.2A CN108485285A (en) | 2018-02-27 | 2018-02-27 | A kind of novel medium density fibre board (MDF) waterproofing agent and preparation method thereof |
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Family
ID=63340802
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110655852A (en) * | 2019-11-10 | 2020-01-07 | 砀山县溪木木业有限公司 | Waterproof paint for wood fiberboard |
| US12037745B2 (en) * | 2020-09-10 | 2024-07-16 | Dahe (Shanghai) Ecological Technology Co., Ltd. | Process for producing binderless formaldehyde-free fiberboard and coproducing fulvic acid from straw |
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| CN102093563A (en) * | 2009-12-11 | 2011-06-15 | 张家港科道化学有限公司 | Preparation method of negative ion hydrophilic organic silicon emulsion |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110655852A (en) * | 2019-11-10 | 2020-01-07 | 砀山县溪木木业有限公司 | Waterproof paint for wood fiberboard |
| US12037745B2 (en) * | 2020-09-10 | 2024-07-16 | Dahe (Shanghai) Ecological Technology Co., Ltd. | Process for producing binderless formaldehyde-free fiberboard and coproducing fulvic acid from straw |
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