CN108505391A - A kind of preparation method of high glaze wear-resisting type impregnated paper - Google Patents
A kind of preparation method of high glaze wear-resisting type impregnated paper Download PDFInfo
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- CN108505391A CN108505391A CN201810361993.3A CN201810361993A CN108505391A CN 108505391 A CN108505391 A CN 108505391A CN 201810361993 A CN201810361993 A CN 201810361993A CN 108505391 A CN108505391 A CN 108505391A
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- impregnated paper
- melamine
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/63—Inorganic compounds
- D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
- D21H17/675—Oxides, hydroxides or carbonates
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/03—Non-macromolecular organic compounds
- D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
- D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/37—Polymers of unsaturated acids or derivatives thereof, e.g. polyacrylates
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- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
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Abstract
The invention discloses a kind of preparation methods of high glaze wear-resisting type impregnated paper, belong to facing paper preparing technical field.Alumina powder surface is carried out first with xylene formaldehyde resin effectively modified, in the molecular structure that the oleophylic structure of diformazan phenyl ring is introduced to alumina powder, the hydrophobicity of alumina powder is set to be improved, in addition carbon black has certain chemism, and surface-active point is more, it is easy in whipping process and mixed-powder reacts, the present invention is by paraformaldehyde solution, melamine, polyvinyl alcohol and sodium citrate mixing, and it is stirred to react to obtain melamine resin under the conditions of certain temperature, melamine resin is modified by epoxychloropropane, in addition epoxychloropropane is added into base material, since the hydroxyl of base material is easy to generate ehter bond with the epoxy reaction of epoxychloropropane, so that hydroxyl will not be aoxidized further in solidification, so that the glossiness of impregnated paper improves, it is with a wide range of applications.
Description
Technical field
The invention discloses a kind of preparation methods of high glaze wear-resisting type impregnated paper, belong to facing paper preparing technical field.
Background technology
Impregnated paper is mixed with PE and plant fiber by non-woven fabrics wood pulp and is made.With superpower absorbability and antilysis energy
Power, while being also that very economical humble grain is detached from paper handkerchief.It is widely used in the patch of cabinet, wardrobe, Bell's reinforced composite floorboard
In face.The paper of veneer is exactly melamine impregnated paper after melamine glue and some additives dipping.And plank
（Density board, particieboard, glued board）, become decorative board by the hot pressing of hot press steel plate.Melamine impregnated paper is according to original
The difference of paper function and it is different, if to achieve the effect that decoration, use color paper；If playing wear-resisting effect,
So use abrasion-proof paper；If playing the effect of mechanical balance, balance paper is used.
Melamine impregnated paper is divided into plain color paper and printing paper, abrasion-proof paper three categories.It can be divided into face according to product purpose
Paper and base stock two major classes.Plain color paper has primary colors paper and printing paper difference, and body paper is best, and form and aspect are pure, not easy to change, printing paper form and aspect
It is more uneven, generally use plain color printing paper as base stock（Laminated flooring is multi-purpose, is also balance paper.）Woodgrained paper is body paper
On the basis of printed, according to the requirement true to nature of wood grain, it is also different to print roller quantity used.Art printing
Paper：Wherein gloomy good artists, painters, directors is leading.Ink：Ink is can't do without in printing, and the ink used in melamine wood grain paper is
Water-based ink.It is divided into domestic ink and import ink.Main difference is that the time of weatherability permanent problem.Differentiate printing quality
Amount can watch the quantity that be left white with magnifying glass, if being left white more, can influence the purity of form and aspect, in addition visually one can easily see that greatly
What amount was left white, quality is very general.It is cheap.In addition it is not allow for supporting ink well, the inaccurate situation of chromatography.If color is sallow, oil
Black quality is bad.Content of melamine determines the abrasion-resistant qualities of melamine surface.It is moisture-proof, mould proof variable mass.Best dipping
Paper, content of melamine 100%, followed by 70% use the impregnated paper of 70% content mostly at present.Pure melamine soaks
The stain paper shelf-life was up to 1 year or more.The carbohydrate gum that worst number does not become a mandarin, serves as melamine glue, if exposure is in air
5 minutes, occur bond state at once, therefore many people say in air-conditioned room to be placed on, to prevent to bond in advance, solidification.
Sugar is dissolved in water, therefore non-moistureproof, do not have to how long, due to wiping, the protective layer on surface is easy to be wiped to melt away.
Common impregnated paper haves the shortcomings that wear no resistance low with glossiness at present, therefore, invents a kind of high glaze wear-resisting type
Impregnated paper has positive effect to facing paper preparing technical field.
Invention content
The technical problems to be solved by the invention：It is low with glossiness in the presence of wearing no resistance for common impregnated paper at present, it is full
The foot defect that paper market does not require, provides a kind of preparation method of high glaze wear-resisting type impregnated paper.
In order to solve the above technical problems, the present invention is using technical solution as described below：
A kind of preparation method of high glaze wear-resisting type impregnated paper, it is characterised in that specifically preparation process is：
（1）Weigh 32~36g alumina laps crushing, obtain alumina powder, then by alumina powder, polyethylene glycol and go from
Sub- water mixing, which is placed in beaker, stirs, and aluminium oxide aqueous dispersion is obtained, by aluminium oxide aqueous dispersion, deionized water and absolute ethyl alcohol
Mixing, which is placed in the four-hole boiling flask equipped with condenser pipe, thermometer and blender, to be stirred at reflux, and reflux suspension is obtained；
（2）The xylene formaldehyde resin and reflux suspension quality 1% of reflux suspension quality 3% are added into reflux suspension
Carbon black, continue insulated and stirred, pour into nutsch filter and filter after stirring, obtain filter residue, and filter residue is washed with deionized, finally
Filter residue after washing is put into baking oven and is dried, cooled to room temperature, grinding discharging obtains modified oxidized aluminium powder；
（3）Paraformaldehyde and distilled water are mixed, and stirring and dissolving, obtains paraformaldehyde solution, adjusted with sodium hydroxide solution
The pH to 8.5~9.0 of paraformaldehyde solution；
（4）Paraformaldehyde solution, melamine, polyvinyl alcohol and the deionized water after adjusting are mixed again, and are stirred to react, is obtained
It is cooling to reaction solution, continue the sodium citrate that reaction solution quality 3% is added into reaction solution, and be mixed, obtains melamine
Melamine resin mixed liquor and epoxychloropropane finally are mixed to be placed in beaker and be stirred by amine-formaldehyde resins mixed liquor,
Cooling discharging obtains modified melamine-formaldehyde resin mixed liquor；
（5）It counts in parts by weight, weighs 32~36 portions of modified melamine-formaldehyde resin mixed liquors, 10~12 parts of modified oxygen respectively
The oxalic acid solution mixing that change aluminium powder, 3~5 parts of polyacrylamides and 1~3 part of mass fraction are 18%, which is placed in blender, stirs
It mixes, obtains mixture, then mixture is poured into extrusion forming in impregnated paper machine, cooling discharging impregnates to get high glaze wear-resisting type
Paper.
Step（1）Described to grind the time be 11~13min, alumina powder, polyethylene glycol and deionized water
Mass ratio is 3：1：6, mixing time is 16~20min, and the volume ratio of aluminium oxide aqueous dispersion, deionized water and absolute ethyl alcohol is
5：2：1, it is 70~80 DEG C to be stirred at reflux temperature, and it is 27~32min to be stirred at reflux the time.
Step（2）The continuation mixing time is 45~60min, and the suction filtration time is 10~12min, washing times 3
~5 times, drying temperature is 72~75 DEG C, and drying time is 1~2h.
Step（3）The mass ratio of the paraformaldehyde and distilled water is 1：4, stirring and dissolving temperature is 55~60 DEG C, is stirred
It is 16~20min to mix dissolution time, and the mass fraction of sodium hydroxide solution is 16%.
Step（4）The mass ratio of paraformaldehyde solution, melamine, polyvinyl alcohol and deionized water after the adjusting
It is 2：5：1：2, it is 68~72 DEG C to be stirred to react temperature, and it is 1~2h to be stirred to react the time, and cooling temperature is 45~50 DEG C, mixing
Mixing time is 12~16min, and whipping temp is 47~55 DEG C, and mixing time is 21~24min.
Step（5）The speed of agitator is 120~160r/min, and mixing time is 24~27min, extrusion forming temperature
It it is 121~123 DEG C, extrusion forming pressure is 6~8MPa.
Compared with other methods, advantageous effects are the present invention：
（1）For the present invention using melamine resin as base material, modified oxidized aluminium powder is aided with polyacrylamide as accelerating agent
High glaze wear-resisting type impregnated paper is prepared in amine and oxalic acid solution etc., first with xylene formaldehyde resin to alumina powder table
Face be effectively modified, and in the molecular structure that the oleophylic structure of diformazan phenyl ring is introduced to alumina powder, makes alumina powder
Hydrophobicity is improved, and is conducive to the dispersibility of alumina powder in the substrate and is improved, promotes the interface of inorganic material and base material
Compatibility promotes attrition resistant materials to be improved in the dispersion of impregnated paper inner homogeneous and hardness, to improve the wearability of impregnated paper, separately
Outer carbon black has certain chemism, and surface-active point is more, is easy in whipping process and mixed-powder reacts, and in base
Material surface forms reticular structure, hinders abrasion of the extraneous factor to impregnated paper, the wearability for being conducive to impregnated paper is improved；
（2）The present invention mixes paraformaldehyde solution, melamine, polyvinyl alcohol and sodium citrate, and in certain temperature condition
Under be stirred to react to obtain melamine resin, melamine resin is modified by epoxychloropropane, due to
The precuring degree and cross-linked form of printing paper surface layer melamine resin are effectively controlled when production so that melamine
Resin and the ink layer on printing paper surface firm connection simultaneously have good surface levelability, to improve the gloss of impregnated paper
Degree, in addition adds epoxychloropropane into base material, since the hydroxyl of base material is easy to generate with the epoxy reaction of epoxychloropropane
Ehter bond so that hydroxyl will not be aoxidized further in solidification so that the glossiness of impregnated paper improves, before having a wide range of applications
Scape.
Specific implementation mode
It weighs 32~36g alumina laps and crushes 11~13min, obtain alumina powder, then by alumina powder, poly- second
Glycol and deionized water are 3 in mass ratio：1：6 mixing are placed in 16~20min of stirring in beaker, obtain aluminium oxide aqueous dispersion,
It is 5 by volume：2：1 by aluminium oxide aqueous dispersion, deionized water and absolute ethyl alcohol mix be placed in equipped with condenser pipe, thermometer and
In the four-hole boiling flask of blender, it is stirred at reflux 27~32min under conditions of temperature is 70~80 DEG C, obtains reflux suspension；
The carbon black of the xylene formaldehyde resin and reflux suspension quality 1% of reflux suspension quality 3% is added into reflux suspension,
Continue 45~60min of insulated and stirred, 10~12min of suction filtration in nutsch filter is poured into after stirring, obtains filter residue, and be washed with deionized water
It washs filter residue 3~5 times, finally the filter residue after washing is put into baking oven, 1~2h is dried at being 72~75 DEG C in temperature, it is naturally cold
But to room temperature, grinding discharging obtains modified oxidized aluminium powder；It is 1 in mass ratio by paraformaldehyde and distilled water：4 mixing, and
Temperature is 16~20min of stirring and dissolving under conditions of 55~60 DEG C, obtains paraformaldehyde solution, the hydrogen for being 16% with mass fraction
Sodium hydroxide solution adjusts the pH to 8.5~9.0 of paraformaldehyde solution；Again by the paraformaldehyde solution, melamine, poly- after adjusting
Vinyl alcohol and deionized water are 2 in mass ratio：5：1：2 mixing, and it is stirred to react 1~2h at being 68~72 DEG C in temperature, it obtains
Reaction solution is cooled to 45~50 DEG C, continues the sodium citrate that reaction solution quality 3% is added into reaction solution, and be mixed 12
~16min obtains melamine resin mixed liquor, finally mixes melamine resin mixed liquor and epoxychloropropane
Conjunction is placed in beaker, and 21~24min is stirred under conditions of temperature is 47~55 DEG C, and cooling discharging obtains modified cyanurotriamide
Formaldehyde resin mixed liquor；It counts in parts by weight, weighs 32~36 parts of modified melamine-formaldehyde resin mixed liquors, 10~12 respectively
The oxalic acid solution mixing that the modified oxidized aluminium powder of part, 3~5 parts of polyacrylamides and 1~3 part of mass fraction are 18% is placed in stirring
In machine, 24~27min is stirred under conditions of rotating speed is 120~160r/min, obtains mixture, then mixture is poured into dipping
In paper machine, extrusion forming under conditions of temperature is 121~123 DEG C, pressure is 6~8MPa, cooling discharging is resistance to get high glaze
Mill type impregnated paper.
Example 1
It weighs 32g alumina laps and crushes 11min, obtain alumina powder, then by alumina powder, polyethylene glycol and deionization
Water is 3 in mass ratio：1：6 mixing, which are placed in beaker, stirs 16min, obtains aluminium oxide aqueous dispersion, is by volume 5：2：1 will
Aluminium oxide aqueous dispersion, deionized water and absolute ethyl alcohol mixing are placed in the four-hole boiling flask equipped with condenser pipe, thermometer and blender
In, it is stirred at reflux 27min under conditions of temperature is 70 DEG C, obtains reflux suspension；It is outstanding that reflux is added into reflux suspension
The carbon black of the xylene formaldehyde resin and reflux suspension quality 1% of supernatant liquid quality 3%, continues insulated and stirred 45min, after stirring
It pours into and filters 10min in nutsch filter, obtain filter residue, and filter residue is washed with deionized 3 times, be finally put into the filter residue after washing
In baking oven, 1h, cooled to room temperature are dried at being 72 DEG C in temperature, grinding discharging obtains modified oxidized aluminium powder；By poly
Formaldehyde and distilled water are 1 in mass ratio：4 mixing, and stirring and dissolving 16min under conditions of temperature is 55 DEG C, obtain poly first
Aldehyde solution, the sodium hydroxide solution for being 16% with mass fraction adjust the pH to 8.5 of paraformaldehyde solution；It again will be more after adjusting
Polyformaldehyde solution, melamine, polyvinyl alcohol and deionized water are 2 in mass ratio：5：1：2 mixing, and in the case where temperature is 68 DEG C
It is stirred to react 1h, obtains reaction solution, is cooled to 45 DEG C, continues the sodium citrate that reaction solution quality 3% is added into reaction solution, and
12min is mixed, melamine resin mixed liquor is obtained, finally by melamine resin mixed liquor and epoxy chlorine
Propane mixing is placed in beaker, stirs 21min under conditions of temperature is 47 DEG C, cooling discharging obtains modified cyanurotriamide first
Urea formaldehyde mixed liquor；Count in parts by weight, weigh respectively 32 portions of modified melamine-formaldehyde resin mixed liquors, 10 parts it is modified oxidized
The oxalic acid solution mixing that aluminium powder, 3 parts of polyacrylamides and 1 part of mass fraction are 18% is placed in blender, is in rotating speed
Stir 24min under conditions of 120r/min, obtain mixture, then mixture is poured into impregnated paper machine, temperature be 121 DEG C,
Pressure is extrusion forming under conditions of 6MPa, and cooling discharging is to get high glaze wear-resisting type impregnated paper.
Example 2
It weighs 34g alumina laps and crushes 12min, obtain alumina powder, then by alumina powder, polyethylene glycol and deionization
Water is 3 in mass ratio：1：6 mixing, which are placed in beaker, stirs 18min, obtains aluminium oxide aqueous dispersion, is by volume 5：2：1 will
Aluminium oxide aqueous dispersion, deionized water and absolute ethyl alcohol mixing are placed in the four-hole boiling flask equipped with condenser pipe, thermometer and blender
In, it is stirred at reflux 29min under conditions of temperature is 75 DEG C, obtains reflux suspension；It is outstanding that reflux is added into reflux suspension
The carbon black of the xylene formaldehyde resin and reflux suspension quality 1% of supernatant liquid quality 3%, continues insulated and stirred 50min, after stirring
It pours into and filters 11min in nutsch filter, obtain filter residue, and filter residue is washed with deionized 4 times, be finally put into the filter residue after washing
In baking oven, 1.5h, cooled to room temperature are dried at being 73 DEG C in temperature, grinding discharging obtains modified oxidized aluminium powder；It will be more
Polyformaldehyde and distilled water are 1 in mass ratio：4 mixing, and stirring and dissolving 18min under conditions of temperature is 57 DEG C, obtain poly
Formalin, the sodium hydroxide solution for being 16% with mass fraction adjust the pH to 8.7 of paraformaldehyde solution；It again will be after adjusting
Paraformaldehyde solution, melamine, polyvinyl alcohol and deionized water are 2 in mass ratio：5：1：2 mixing, and be 70 DEG C in temperature
Under be stirred to react 1.5h, obtain reaction solution, be cooled to 47 DEG C, continue the citric acid that reaction solution quality 3% is added into reaction solution
Sodium, and 14min is mixed, obtains melamine resin mixed liquor, finally by melamine resin mixed liquor and
Epoxychloropropane mixing is placed in beaker, and 23min is stirred under conditions of temperature is 50 DEG C, and cooling discharging obtains modified trimerization
Cyanamide formaldehyde resin mixed liquor；Count in parts by weight, weigh respectively 34 portions of modified melamine-formaldehyde resin mixed liquors, 11 parts change
Property alumina powder, 4 parts of polyacrylamides and 2 parts of mass fractions be 18% oxalic acid solution mixing be placed in blender, turning
Speed stirs 25min under conditions of being 140r/min, obtains mixture, then mixture is poured into impregnated paper machine, is 122 in temperature
DEG C, pressure be 7MPa under conditions of extrusion forming, cooling discharging is to get high glaze wear-resisting type impregnated paper.
Example 3
It weighs 36g alumina laps and crushes 13min, obtain alumina powder, then by alumina powder, polyethylene glycol and deionization
Water is 3 in mass ratio：1：6 mixing, which are placed in beaker, stirs 20min, obtains aluminium oxide aqueous dispersion, is by volume 5：2：1 will
Aluminium oxide aqueous dispersion, deionized water and absolute ethyl alcohol mixing are placed in the four-hole boiling flask equipped with condenser pipe, thermometer and blender
In, it is stirred at reflux 32min under conditions of temperature is 80 DEG C, obtains reflux suspension；It is outstanding that reflux is added into reflux suspension
The carbon black of the xylene formaldehyde resin and reflux suspension quality 1% of supernatant liquid quality 3%, continues insulated and stirred 60min, after stirring
It pours into and filters 12min in nutsch filter, obtain filter residue, and filter residue is washed with deionized 5 times, be finally put into the filter residue after washing
In baking oven, 2h, cooled to room temperature are dried at being 75 DEG C in temperature, grinding discharging obtains modified oxidized aluminium powder；By poly
Formaldehyde and distilled water are 1 in mass ratio：4 mixing, and stirring and dissolving 20min under conditions of temperature is 60 DEG C, obtain poly first
Aldehyde solution, the sodium hydroxide solution for being 16% with mass fraction adjust the pH to 9.0 of paraformaldehyde solution；It again will be more after adjusting
Polyformaldehyde solution, melamine, polyvinyl alcohol and deionized water are 2 in mass ratio：5：1：2 mixing, and in the case where temperature is 72 DEG C
It is stirred to react 2h, obtains reaction solution, is cooled to 50 DEG C, continues the sodium citrate that reaction solution quality 3% is added into reaction solution, and
16min is mixed, melamine resin mixed liquor is obtained, finally by melamine resin mixed liquor and epoxy chlorine
Propane mixing is placed in beaker, stirs 24min under conditions of temperature is 55 DEG C, cooling discharging obtains modified cyanurotriamide first
Urea formaldehyde mixed liquor；Count in parts by weight, weigh respectively 36 portions of modified melamine-formaldehyde resin mixed liquors, 12 parts it is modified oxidized
The oxalic acid solution mixing that aluminium powder, 5 parts of polyacrylamides and 3 parts of mass fractions are 18% is placed in blender, is in rotating speed
Stir 27min under conditions of 160r/min, obtain mixture, then mixture is poured into impregnated paper machine, temperature be 123 DEG C,
Pressure is extrusion forming under conditions of 8MPa, and cooling discharging is to get high glaze wear-resisting type impregnated paper.
Comparative example
With the high glaze wear-resisting type impregnated paper of Shandong company production as a comparison case to high glaze wear-resisting type produced by the present invention
High glaze wear-resisting type impregnated paper in impregnated paper and comparative example carries out performance detection, and testing result is as shown in table 1：
Test method：
Gloss detection is detected according to GB/T 18102-2007 standards；
Scratch resistance test is detected according to 9861 standards of GB T；
Abrasive size test is detected using abrasive grain machinery instrument, and abrasive size is bigger, and wear-resisting property is higher；
Wear-resisting revolution test method：According to national standards, the impregnated paper in example 1~3 and comparative example is surveyed with 180 mesh sand paper
Examination, every 500 conversion, one, sand paper, measures last wear-resisting revolution.
1 impregnated paper performance measurement result of table
| Test event | Example 1 | Example 2 | Example 3 | Comparative example |
| Gloss（60 degree） | 111.2 | 111.8 | 112.5 | 90.4 |
| Scratch resistance（N） | 3.3 | 3.4 | 3.5 | 2.2 |
| Abrasive size（Mesh） | 197 | 200 | 205 | 158 |
| Wear-resisting revolution（r） | 8558 | 8765 | 8857 | 6415 |
High according to the high glaze wear-resisting type impregnated paper glossiness produced by the present invention of data among the above, resistance to marring is good, wear-resisting
Property is good, has broad application prospects.
Claims (6)
1. a kind of preparation method of high glaze wear-resisting type impregnated paper, it is characterised in that specifically preparation process is：
（1）Weigh 32~36g alumina laps crushing, obtain alumina powder, then by alumina powder, polyethylene glycol and go from
Sub- water mixing, which is placed in beaker, stirs, and aluminium oxide aqueous dispersion is obtained, by aluminium oxide aqueous dispersion, deionized water and absolute ethyl alcohol
Mixing, which is placed in the four-hole boiling flask equipped with condenser pipe, thermometer and blender, to be stirred at reflux, and reflux suspension is obtained；
（2）The xylene formaldehyde resin and reflux suspension quality 1% of reflux suspension quality 3% are added into reflux suspension
Carbon black, continue insulated and stirred, pour into nutsch filter and filter after stirring, obtain filter residue, and filter residue is washed with deionized, finally
Filter residue after washing is put into baking oven and is dried, cooled to room temperature, grinding discharging obtains modified oxidized aluminium powder；
（3）Paraformaldehyde and distilled water are mixed, and stirring and dissolving, obtains paraformaldehyde solution, adjusted with sodium hydroxide solution
The pH to 8.5~9.0 of paraformaldehyde solution；
（4）Paraformaldehyde solution, melamine, polyvinyl alcohol and the deionized water after adjusting are mixed again, and are stirred to react, is obtained
It is cooling to reaction solution, continue the sodium citrate that reaction solution quality 3% is added into reaction solution, and be mixed, obtains melamine
Melamine resin mixed liquor and epoxychloropropane finally are mixed to be placed in beaker and be stirred by amine-formaldehyde resins mixed liquor,
Cooling discharging obtains modified melamine-formaldehyde resin mixed liquor；
（5）It counts in parts by weight, weighs 32~36 portions of modified melamine-formaldehyde resin mixed liquors, 10~12 parts of modified oxygen respectively
The oxalic acid solution mixing that change aluminium powder, 3~5 parts of polyacrylamides and 1~3 part of mass fraction are 18%, which is placed in blender, stirs
It mixes, obtains mixture, then mixture is poured into extrusion forming in impregnated paper machine, cooling discharging impregnates to get high glaze wear-resisting type
Paper.
2. a kind of preparation method of high glaze wear-resisting type impregnated paper according to claim 1, it is characterised in that：Step（1）
The time that grinds is 11~13min, and the mass ratio of alumina powder, polyethylene glycol and deionized water is 3：1：6, it stirs
It is 16~20min to mix the time, and the volume ratio of aluminium oxide aqueous dispersion, deionized water and absolute ethyl alcohol is 5：2：1, it is stirred at reflux temperature
Degree is 70~80 DEG C, and it is 27~32min to be stirred at reflux the time.
3. a kind of preparation method of high glaze wear-resisting type impregnated paper according to claim 1, it is characterised in that：Step（2）
The continuation mixing time is 45~60min, and the suction filtration time is 10~12min, and washing times are 3~5 times, and drying temperature is
72~75 DEG C, drying time is 1~2h.
4. a kind of preparation method of high glaze wear-resisting type impregnated paper according to claim 1, it is characterised in that：Step（3）
The mass ratio of the paraformaldehyde and distilled water is 1：4, stirring and dissolving temperature be 55~60 DEG C, the stirring and dissolving time be 16~
The mass fraction of 20min, sodium hydroxide solution are 16%.
5. a kind of preparation method of high glaze wear-resisting type impregnated paper according to claim 1, it is characterised in that：Step（4）
The mass ratio of paraformaldehyde solution, melamine, polyvinyl alcohol and deionized water after the adjusting is 2：5：1：2, stirring
Reaction temperature be 68~72 DEG C, be stirred to react the time be 1~2h, cooling temperature be 45~50 DEG C, be mixed the time be 12~
16min, whipping temp are 47~55 DEG C, and mixing time is 21~24min.
6. a kind of preparation method of high glaze wear-resisting type impregnated paper according to claim 1, it is characterised in that：Step（5）
The speed of agitator is 120~160r/min, and mixing time is 24~27min, and extrusion forming temperature is 121~123 DEG C, is squeezed
Molded pressure is 6~8MPa.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109235118A (en) * | 2018-09-20 | 2019-01-18 | 方建波 | A kind of preparation method of fire-resistant waterproof glass fiber reinforcement decorative panel |
| CN110029528A (en) * | 2019-03-29 | 2019-07-19 | 广东福美新材料科技有限公司 | A kind of moisture-proof impregnated paper of nano highlight and preparation method thereof |
| CN115873374A (en) * | 2022-10-26 | 2023-03-31 | 福州大学 | Melamine formaldehyde resin/dodecanol composite material with high thermal conductivity and high toughness and preparation method thereof |
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| CN102060967A (en) * | 2010-12-01 | 2011-05-18 | 刘有志 | Preparation method of melamin resin for impregnating wood grain paper |
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| CN110029528A (en) * | 2019-03-29 | 2019-07-19 | 广东福美新材料科技有限公司 | A kind of moisture-proof impregnated paper of nano highlight and preparation method thereof |
| CN110029528B (en) * | 2019-03-29 | 2023-08-15 | 广东福美新材料科技有限公司 | Nano highlight moistureproof impregnated paper and preparation method thereof |
| CN115873374A (en) * | 2022-10-26 | 2023-03-31 | 福州大学 | Melamine formaldehyde resin/dodecanol composite material with high thermal conductivity and high toughness and preparation method thereof |
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Application publication date: 20180907 |