CN105821692A - Glass fiber dispersing method - Google Patents
Glass fiber dispersing method Download PDFInfo
- Publication number
- CN105821692A CN105821692A CN201610362204.9A CN201610362204A CN105821692A CN 105821692 A CN105821692 A CN 105821692A CN 201610362204 A CN201610362204 A CN 201610362204A CN 105821692 A CN105821692 A CN 105821692A
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- CN
- China
- Prior art keywords
- glass
- glass fibre
- slurry
- ultrasonic
- dispersing
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- 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.)
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Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/10—Non-chemical treatment
-
- 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
- D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
- D21H13/36—Inorganic fibres or flakes
- D21H13/38—Inorganic fibres or flakes siliceous
- D21H13/40—Inorganic fibres or flakes siliceous vitreous, e.g. mineral wool, glass fibres
Abstract
The invention relates to a glass fiber dispersing method .The method comprises the following steps that glass wool of which the maximum size is 0.1 micrometer to 5 micrometers and glass fibers of which the maximum size is 6 micrometers to 50 micrometers are added to water according to the mass ratio of 1:(0.05-20), and a slurry is obtained; ultrasonic treatment is conducted on the slurry, and glass fiber homogenate is obtained, wherein the conditions of ultrasonic treatment are that the ultrasonic frequency ranges from 20 KHz to 68 KHz, the ultrasonic power ranges from 0.2 kw/kg to 1 kw/kg, and the ultrasonic time ranges from 0.5 min to 30 min .According to the glass fiber dispersing method, ultrasonic dispersion is introduced into a glass fiber dispersing technology for the first time, by means of the ultrasonic cavitation and mechanical effect, no dispersing agent needs to be added, or reduction of slurry concentration is not needed, full and uniform dispersion of the glass fibers in water can be achieved, compatibility of the glass wool and glass fibers which have specific diameters according to the mass ratio is achieved, the glass fibers are dispersed uniformly, and it is guaranteed that prepared glass fiber paper has high strength.
Description
Technical field
The present invention relates to the preparation field of filtering material, particularly relate to a kind of glass fibre process for dispersing.
Background technology
Glass fibre is the fibrous material with glass as constituent, have that capacity is little, dimensional stability is high,
Heat conductivity is low, electrical insulating property good, sound absorbing capabilities is good, filter efficiency is high, do not burn, water-fast, oil resistant,
The premium properties such as acidproof and corrosion-resistant, is a kind of good filtration, thermal insulation, sound-absorbing material.
Glass fibre is had by the fiberglass-based thin page functional material that wet papermaking is made the filtration of excellence
Performance, it is also possible to be referred to as all-glass paper.The preparation of all-glass paper need not making beating, needs glass before becoming paper
Glass fiber is fully dispersed in water, the uniformity in water, determines evenness and the intensity of paper.Therefore,
Glass fibre be dispersed in production glass fibre paper during particularly important.
The glass fibre that basis of microscopic observation arrives is like Glass rod, single stiff and elongated, and length-width ratio is big, this fibre
Dimension table has worn electric charge, so during with slurry before manufacturing paper with pulp, glass fibre is wound around the most mutually, is formed
It is difficult to scattered coma in a large number, produces poly-phenomenon of wadding a quilt with cotton, have a strong impact on glass fibre paper evenness.
Current industrial the problems referred to above that mainly solve in terms of two: 1. add surface activity slurry process
Agent, to improve the surface tension of glass fibre, increases glass fibre hydrophilic, to promote that glass fibre disperses
Uniformly；2. reducing slurry concentration, general wet glass fibers paper pulping concentration is relatively low, typically below 0.1%.
Above two solves glass fibre and disperses uneven method all to have problems: 1. add surfactant,
Really can change the surface tension of glass fibre, the beneficially dispersion of glass fibre, but be simultaneously introduced Organic substance,
Influence whether the application of glass fibre paper；2. the dispersion of slurry concentration, beneficially glass fibre is reduced,
But reducing slurry concentration can cause utilization rate of equipment and installations to reduce, and not only affects production capacity, and what is more important is in dispersion
During can increase substantial amounts of waste water, no matter all can produce bigger shadow to environment or to the economic benefit of project
Ring.
Summary of the invention
Based on this, it is necessary to provide a kind of in the case of being added without any dispersant or reducing slurry concentration,
Make glass fibre homodisperse glass fibre process for dispersing.
A kind of glass fibre process for dispersing, comprises the steps:
By the glass cotton that radial direction full-size is 0.1-5 μm and the glass fibre that radially full-size is 6-50 μm
It is that 1:0.05-20 adds to water according to mass ratio, is made into slurry；
Described slurry is carried out supersound process, obtains glass fibre homogenate, wherein, described supersound process
Condition be: ultrasonic frequency is 20-68KHz, and ultrasonic power is 0.2-1kw/kg, ultrasonic time
0.5-30min。
Wherein in an embodiment, the condition of described supersound process is: ultrasonic frequency is 20-68KHz,
Ultrasonic power is 0.2-0.6kw/kg, ultrasonic time 15-30min.
Wherein in an embodiment, the condition of described supersound process is: ultrasonic frequency is 20-40KHz,
Ultrasonic power is 0.4-0.6kw/kg, ultrasonic time 15-30min.
Wherein in an embodiment, described glass cotton and glass fibre are 1:1-20 according to mass ratio.
Wherein in an embodiment, described glass cotton and glass fibre are 1:1-2 according to mass ratio.
Wherein in an embodiment, the radial direction full-size of described glass cotton is 0.6-4.5 μm, and beating degree is
24-29 °, the radial direction full-size of described glass fibre is 6-30 μm.
Wherein in an embodiment, glass cotton described in described slurry and the mass concentration sum of glass fibre
For 0.1-0.5%.
Wherein in an embodiment, the slurry after described supersound process, then to use power be 300-500w
Standard fibre dissociation device carries out dispersion process, and speed of agitator is 2000-4000rpm, and jitter time is 1-20min,
Obtain the homogenate of described glass fibre.
The present invention separately provides the preparation method of a kind of all-glass paper, comprises the steps:
Glass fibre homogenate is prepared according to described glass fibre process for dispersing；
After described glass fibre homogenate sucking filtration is become paper, spray binding agent, dry, obtain described glass fibre
Paper.
Described binding agent is specifically available is preferably polyurethane or styrene-acrylic resin.
The present invention also provides for the all-glass paper that the preparation method of described all-glass paper prepares.
Compared with prior art, the method have the advantages that
The glass fibre process for dispersing of the present invention, is firstly introduced ultrasonic disperse in glass fibre dispersion technology,
Utilize cavitation and the mechanical effect of ultrasound wave, it is not necessary to add any dispersant or reduce slurry concentration, i.e.
Glass fibre can be realized in water fully, disperse uniformly, and compatibility specific radial full-size in mass ratio
Glass cotton and glass fibre, while making glass fibre be uniformly dispersed, it is ensured that prepare all-glass paper tool
There is higher intensity.
The method is simple to operate, and process is easy to control, it is adaptable to industrialized mass.
Accompanying drawing explanation
Fig. 1 is the Electronic Speculum figure after the slurry that the embodiment of the present invention 2 prepares becomes paper；
Fig. 2 be the embodiment of the present invention 1 prepare with comparative example 3 slurry comparison diagram (left: comparative example 3, right:
Embodiment 1).
Detailed description of the invention
Below in conjunction with specific embodiment, the glass fibre process for dispersing of the present invention is described in further detail.
The beating degree of the glass cotton used in the embodiment of the present invention is 24-29 °.
Embodiment 1
By glass cotton and average radial full-size that average radial full-size (i.e. average diameter) is 0.6 μm
It is the glass fibre of 6 μm, is 20:1 in mass ratio, be made into the slurry that concentration is 0.1%, in supersonic frequency be
20KHz, ultrasonic power is under 1kw/kg ultrasonic 30 minutes, and after ultrasonic end, slurry is in standard fibers solution
Dispersion 20 minutes in device (power 300w, rotating speed 2000rpm).
Fiber average radial full-size surveyed by slurry after dispersion is 0.89 μm, and slurry becomes on molding device paper
After, the tensile strength of paper is 95N/m.
On this paper, spray binding agent styrene-acrylic resin further, after 100-120 DEG C dries, i.e. can be made into glass fibers
Dimension paper.
Embodiment 2
By glass cotton that average radial full-size is 0.6 μm and glass fibers that average radial full-size is 6 μm
Dimension, adds to water for 1:1 in mass ratio, is made into the slurry that concentration is 0.25%, is 40KHz in supersonic frequency,
Ultrasonic power is under 0.6kw/kg ultrasonic 15 minutes, and after ultrasonic end, slurry is in standard fibers dissociation device (merit
Rate 400w, rotating speed 3000rpm) in dispersion 10 minutes.
Fiber average radial full-size surveyed by slurry after dispersion is 3.40 μm, after slurry is become paper, and resisting of paper
Zhang Qiangdu is 103N/m, and the Electronic Speculum figure of paper is as shown in Figure 1.
On this paper, spray binding agent polyurethane further, after 100-120 DEG C dries, i.e. can be made into glass fibre
Paper.
Embodiment 3
By glass cotton that average radial full-size is 0.6 μm and glass fibers that average radial full-size is 6 μm
Dimension, adds to water for 1:20 in mass ratio, is made into the slurry that concentration is 0.5%, is 68KHz in supersonic frequency,
Under ultrasonic power is 0.2kw/kg ultrasonic 15 minutes, after ultrasonic end, slurry was at standard fibers dissociation device
Dispersion 20 minutes in (power 400w, rotating speed 3000rpm).
Fiber average radial full-size surveyed by slurry after dispersion is 6.30 μm, after slurry is become paper, and resisting of paper
Zhang Qiangdu is 114N/m.
Embodiment 4
By glass cotton that average radial full-size is 0.6 μm and glass fibers that average radial full-size is 6 μm
Dimension, adds to water for 1:1 in mass ratio, is made into the slurry that concentration is 0.5%, is 20KHz in supersonic frequency,
Ultrasonic power is under 0.2kw/kg ultrasonic 5 minutes, and after ultrasonic end, slurry is in standard fibers dissociation device (merit
Rate 300w, rotating speed 2000rpm) in dispersion 10 minutes.
Fiber average radial full-size surveyed by slurry after dispersion is 3.70 μm, after slurry is become paper, and resisting of paper
Zhang Qiangdu is 108N/m.
Embodiment 5
By glass cotton that average radial full-size is 0.6 μm and glass fibers that average radial full-size is 6 μm
Dimension, adds to water for 20:1 in mass ratio, is made into the slurry that concentration is 0.5%, is 45KHz in supersonic frequency,
Ultrasonic power is under 0.2kw/kg ultrasonic 0.5 minute, and after ultrasonic end, slurry is at standard fibers dissociation device
Dispersion 1 minute in (power 500w, rotating speed 4000rpm).
Fiber average radial full-size surveyed by slurry after dispersion is 0.94 μm, after slurry is become paper, and resisting of paper
Zhang Qiangdu is 93N/m.
Embodiment 6
By glass cotton that average radial full-size is 4.5 μm and glass that average radial full-size is 30 μm
Fiber, adds to water for 20:1 in mass ratio, is made into the slurry that concentration is 0.1%, in supersonic frequency is
68KHz, ultrasonic power is under 1kw/kg ultrasonic 30 minutes, and after ultrasonic end, slurry is in standard fibers solution
Dispersion 20 minutes in device (power 500w, rotating speed 4000rpm).
Fiber average radial full-size surveyed by slurry after dispersion is 5.80 μm, after slurry is become paper, and resisting of paper
Zhang Qiangdu is 90N/m.
Embodiment 7
By glass cotton that average radial full-size is 4.5 μm and glass that average radial full-size is 30 μm
Fiber, adds to water for 1:1 in mass ratio, is made into the slurry that concentration is 0.5%, in supersonic frequency is
20KHz, ultrasonic power is under 0.5kw/kg ultrasonic 15 minutes, and after ultrasonic end, slurry is in standard fibers
Dispersion 10 minutes in dissociation device (power 400w, rotating speed 3000rpm).
Fiber average radial full-size surveyed by slurry after dispersion is 18.1 μm, after slurry is become paper, and resisting of paper
Zhang Qiangdu is 119N/m.
Embodiment 8
By glass cotton that average radial full-size is 1.02 μm and glass that average radial full-size is 15 μm
Fiber, adds to water for 1:1 in mass ratio, is made into the slurry that concentration is 0.5%, in supersonic frequency is
68KHz, ultrasonic power is under 0.5kw/kg ultrasonic 30 minutes, and after ultrasonic end, slurry is in standard fibers
Dispersion 10 minutes in dissociation device (power 400w, rotating speed 3000rpm).
Fiber average radial full-size surveyed by slurry after dispersion is 8.6 μm, after slurry is become paper, and resisting of paper
Zhang Qiangdu is 118N/m.
Embodiment 9
By glass cotton that average radial full-size is 1.02 μm and glass that average radial full-size is 15 μm
Fiber, adds to water for 1:1 in mass ratio, is made into the slurry that concentration is 0.5%, in supersonic frequency is
40KHz, ultrasonic power is under 0.5kw/kg ultrasonic 30 minutes, and after ultrasonic end, slurry is in standard fibers
Dispersion 10 minutes in dissociation device (power 400w, rotating speed 3000rpm).
Fiber average radial full-size surveyed by slurry after dispersion is 8.6 μm, after slurry is become paper, and resisting of paper
Zhang Qiangdu is 122N/m.
Embodiment 10
By glass cotton that average radial full-size is 1.02 μm and glass that average radial full-size is 15 μm
Fiber, adds to water for 1:1 in mass ratio, is made into the slurry that concentration is 0.5%, in supersonic frequency is
28KHz, ultrasonic power is under 0.5kw/kg ultrasonic 30 minutes, and after ultrasonic end, slurry is in standard fibers
Dispersion 10 minutes in dissociation device (power 400w, rotating speed 3000rpm).
Fiber average radial full-size surveyed by slurry after dispersion is 8.5 μm, after slurry is become paper, and resisting of paper
Zhang Qiangdu is 128N/m.
Embodiment 11
By glass cotton that average radial full-size is 1.02 μm and glass that average radial full-size is 15 μm
Fiber, adds to water for 1:1 in mass ratio, is made into the slurry that concentration is 0.5%, in supersonic frequency is
20KHz, ultrasonic power is under 0.5kw/kg ultrasonic 30 minutes, and after ultrasonic end, slurry is in standard fibers
Dispersion 10 minutes in dissociation device (power 400w, rotating speed 3000rpm).
Fiber average radial full-size surveyed by slurry after dispersion is 8.2 μm, after slurry is become paper, and resisting of paper
Zhang Qiangdu is 134N/m.
Comparative example 1
By glass cotton that average radial full-size is 1.02 μm and glass that average radial full-size is 15 μm
Fiber, adds to water for 1:1 in mass ratio, is made into the slurry that concentration is 0.5%, dissociates in standard fibers
Dispersion 10 minutes in device (power 400w, rotating speed 3000rpm), fiber average radial surveyed by the slurry after dispersion
Full-size is 9.2 μm, and after slurry is become paper, the tensile strength of paper is 70N/m.
Comparative example 2
By glass cotton that average radial full-size is 1.02 μm and glass that average radial full-size is 15 μm
Fiber, adds to water for 1:1 in mass ratio, is made into the slurry that concentration is 0.5%, in supersonic frequency is
80KHz, ultrasonic power is under 0.5kw/kg ultrasonic 30 minutes, and after ultrasonic end, slurry is in standard fibers
Dispersion 10 minutes in dissociation device (power 400w, rotating speed 3000rpm).
Fiber average radial full-size surveyed by slurry after dispersion is 9.5 μm, after slurry is become paper, and resisting of paper
Zhang Qiangdu is 110N/m.
Comparative example 3
The glass fibre that average radial full-size is 6 μm is added to water, is made into the slurry that concentration is 0.1%
Material, is 20KHz in supersonic frequency, and ultrasonic power is under 1kw/kg ultrasonic 30 minutes, after ultrasonic end,
Slurry is dispersion 20 minutes in standard fibers dissociation device (power 300w, rotating speed 2000rpm).
The comparison diagram of the slurry after dispersion and the slurry that embodiment 1 prepares is shown in Fig. 2, surveys its fiber average diameter
It is 30 μm to full-size；Above-mentioned slurry cannot become paper.
Each technical characteristic of embodiment described above can combine arbitrarily, for making description succinct, the most right
The all possible combination of each technical characteristic in above-described embodiment is all described, but, if these skills
There is not contradiction in the combination of art feature, is all considered to be the scope that this specification is recorded.
Embodiment described above only have expressed the several embodiments of the present invention, and it describes more concrete and detailed,
But can not therefore be construed as limiting the scope of the patent.It should be pointed out that, for this area
For those of ordinary skill, without departing from the inventive concept of the premise, it is also possible to make some deformation and change
Entering, these broadly fall into protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be with appended power
Profit requires to be as the criterion.
Claims (10)
1. a glass fibre process for dispersing, it is characterised in that comprise the steps:
By the glass cotton that radial direction full-size is 0.1-5 μm and the glass fibre that radially full-size is 6-50 μm
It is that 1:0.05-20 adds to water according to mass ratio, is made into slurry；
Described slurry is carried out supersound process, obtains glass fibre homogenate, wherein, described supersound process
Condition be: ultrasonic frequency is 20-68KHz, and ultrasonic power is 0.2-1kw/kg, ultrasonic time
0.5-30min。
Glass fibre process for dispersing the most according to claim 1, it is characterised in that described supersound process
Condition be: ultrasonic frequency is 20-68KHz, and ultrasonic power is 0.2-0.6kw/kg, ultrasonic time
15-30min。
Glass fibre process for dispersing the most according to claim 2, it is characterised in that described supersound process
Condition be: ultrasonic frequency is 20-40KHz, and ultrasonic power is 0.4-0.6kw/kg, ultrasonic time
15-30min。
Glass fibre process for dispersing the most according to claim 1, it is characterised in that described glass cotton with
Glass fibre is 1:1-20 according to mass ratio.
Glass fibre process for dispersing the most according to claim 4, it is characterised in that described glass cotton with
Glass fibre is 1:1-2 according to mass ratio.
Glass fibre process for dispersing the most according to claim 1, it is characterised in that described glass cotton
Radially full-size is 0.6-4.5 μm, and beating degree is 24-29 °；The radial direction full-size of described glass fibre is
6-30μm。
Glass fibre process for dispersing the most according to claim 1, it is characterised in that institute in described slurry
The mass concentration sum stating glass cotton and glass fibre is 0.1-0.5%.
8. according to the glass fibre process for dispersing described in any one of claim 1-7, it is characterised in that through institute
State the slurry after supersound process, then to use power be that 300-500w standard fibre dissociation device carries out dispersion process,
Speed of agitator is 2000-4000rpm, and jitter time is 1-20min, obtains the homogenate of described glass fibre.
9. the preparation method of an all-glass paper, it is characterised in that comprise the steps:
Glass fibre homogenate is prepared according to glass fibre process for dispersing described in any one of claim 1-8；
After described glass fibre homogenate sucking filtration is become paper, spray binding agent, dry, obtain described glass fibre
Paper.
10. the all-glass paper that the preparation method of the all-glass paper described in claim 9 prepares.
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| CN201610362204.9A CN105821692A (en) | 2016-05-26 | 2016-05-26 | Glass fiber dispersing method |
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| CN108729286A (en) * | 2018-05-23 | 2018-11-02 | 天津科技大学 | A method of improving tobacco pulp fiber flexibility |
| CN109279910A (en) * | 2017-07-19 | 2019-01-29 | 北新集团建材股份有限公司 | A method of preparing plasterboard |
| CN112663398A (en) * | 2020-12-23 | 2021-04-16 | 西安爱德乐环保科技有限公司 | Flexible glass fiber paper and preparation method thereof |
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