CN1590051A - Processing method of bamboo carbon ultrafine powder and its application in synthetic fiber - Google Patents
Processing method of bamboo carbon ultrafine powder and its application in synthetic fiber Download PDFInfo
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- CN1590051A CN1590051A CN 03150537 CN03150537A CN1590051A CN 1590051 A CN1590051 A CN 1590051A CN 03150537 CN03150537 CN 03150537 CN 03150537 A CN03150537 A CN 03150537A CN 1590051 A CN1590051 A CN 1590051A
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Abstract
A process for preparing the superfine (less than 0.5 microns) particles of charred bamboo and the application of said superfine particles in preparing the synthetic fibres are disclosed. Said synthetic fibres features high insulating function, antibacterial action, and adsorptivity, and radiating far infrared rays.
Description
Technical field
The invention belongs to a kind of super-fine processing and classification technique thereof of raw material; be specifically related to the method that a kind of mechanical ultra-fine grinding of bamboo charcoal and classification are handled, and ultra-fine bamboo-carbon powder be applied to the filametntary method that is processed into the bamboo charcoal master batch in the synthetic fiber material or is processed into all size.
Background technology
Bamboo charcoal is that economize of China south carried out the developing staple product direction of bamboo more, bamboo charcoal be with local abundant bamboo resource carry out rationally, the effective development and use, form by high-temperature roasting.Bamboo charcoal is a kind of porous body, and its surface area is up to 700m
2/ g is the twice of charcoal, has characteristics such as fabulous adsorbing separation, hygroscopic desiccation, deodorizing antibiotic, can be widely used in purification of water quality, air cleaning, improves the soil, building decoration.Have been widely used in fields such as industry, agricultural, electronics, health care, environmental protection, high-tech.But for a long time, bamboo charcoal only can be prepared into graininess, at most also just is processed into 10～80 purpose powders and uses.Yet,,, the further super-fine processing of bamboo charcoal has been become possibility by the method for high-tech ultra-fine grinding along with nanometer technology constantly develops.The exploitation of this ultra-fine bamboo-carbon powder; will further enlarge the range of application of bamboo charcoal; especially after the top priority of mankind nowadays living environment protection as us; bamboo charcoal through super-fine processing has wider development prospect, thereby further promotes the technological progress of environmental engineering and other related industries.But because the intrinsic physicochemical characteristic of bamboo charcoal itself, on the engineering bamboo charcoal is machined to 6000 orders at present, particle diameter is very difficult about 2 μ m, therefore to be machined to the particle diameter that is fit to use in the synthetic fibers less than 0.5 μ m bamboo-carbon powder, become the difficult problem of bamboo charcoal super-fine processing, it is than the also difficult several times of super-fine processing of tourmaline, and the people in the industry has to hope charcoal to be heaved a sigh! Here it is technical barrier that pendulum needs in face of us to be solved.
Summary of the invention
The objective of the invention is to propose a kind of processing method of ultra-fine bamboo-carbon powder and the application in synthetic fibers thereof.After ultra-fine bamboo-carbon powder adds in the composite fibre materials, make the fiber of preparation gained have the various functions that bamboo charcoal has, for the development of functional health dress ornament provides desirable fibrous raw material, be that carrier is further brought into play the function of ultra-fine bamboo charcoal with the chemical fibre simultaneously, can further promote the technological progress of related industries.
Design of the present invention is such:
In order to overcome the technical barrier of bamboo charcoal super-fine processing, the inventor is on the basis of being engaged in the experience that superfine powder processing accumulated for a long time, at bamboo charcoal intrinsic physicochemical characteristic, by adding suitable dispersant to the bamboo charcoal fine grained, place ball mill to carry out wet method super-fine then and pulverize processing, taking-up is placed on and gives the classification processing in the centrifugal sedimentation grader, and pulp components up to standard is discharged by the center, and below standard particle then returns and proceeds processing in the ball mill; Pulp components up to standard is at first carried out the high speed centrifugation sedimentation, incline except that the filter cake after the clear liquid capable drier (wherein water content≤0.5% (wt)), dry material is collected after ultra-fine grinding, is packed, be the product of bamboo charcoal superfine powder-particle diameter of the present invention≤0.5 μ m, can be used as the commercially available prod supply the market, supply synthetic fiber industry as functional additive.
Join in the composite fibre materials according to certain ratio as bamboo charcoal superfine powder above-mentioned gained, in sections such as terylene, polypropylene fibre, make the fiber master batch that contains bamboo charcoal by operations such as mixing, extruding, be called for short " bamboo charcoal master batch ", can use for the fiber industry wire drawing; Again above-mentioned bamboo charcoal master batch is mixed according to a certain percentage with composite fibre materials (as sections such as terylene, polypropylene fibre), and make the fiber of various different sizes in wire drawing workshop section; Perhaps above-mentioned gained bamboo charcoal superfine powder, the chemical fibre factory make a workshop section directly join according to a certain percentage in the synthetic fibers slurry disperse mixing after, go wire drawing to make the fiber of various different sizes (viscose glue and acrylic fibers), as the functional raw material of dress ornament industry.
Also be achieved in that according to above-mentioned design the present invention
1, the super-fine processing of bamboo-carbon powder
At first bamboo charcoal is carried out roughing, be crushed to 300 orders/time, be particle diameter≤50 μ m, and then the bamboo charcoal of inlet air flow ultra-fine grinding to the particle diameter 2 μ m is raw material, 0.5～1% (wt) that presses the bamboo charcoal amount adds " dispersant ", adding water preparation solid content again is the mixture of 10～30% (wt), place ball mill to carry out ultra-fine grinding 24～100 hours, taking-up is placed on carries out the classification processing in the decanter type centrifugal classifying, bamboo charcoal component up to standard (particle diameter≤0.5 μ m) is drawn (for the step handles down) from the centre, below standard coarse granule (particle diameter＞0.5 μ m) then returns and proceeds processing in the ball mill.Wherein said " dispersant " is for being a cationoid type surfactant of representative with the Si ion or being a kind of among the class neutral surface active agent of representative with Si and Al ion, or their mixture; The maximum yield of classification gained qualified products is 60% (wt) of inventory (bamboo charcoal).
Qualified products (bamboo charcoal slurry) with above-mentioned classification gained, at first carry out the high speed centrifugation sedimentation, the filter cake that separation is removed after the clear liquid is dried to or is dried to water content≤0.5% (wt) again under 120 ℃～130 ℃, dried material is again through ultra-fine grinding, collect, pack, promptly get the said particle diameter 0.5 μ m bamboo charcoal superfine powder product of the present invention.
2, the application of bamboo charcoal superfine powder product in synthetic fibers
(1) with above-mentioned bamboo charcoal superfine powder (particle diameter≤0.5 μ m) in the ratio of 10～35% (wt) and synthetic fiber material (as terylene, polypropylene fibre or the section of other synthetic fiber materials) the section mixing, then by mixing, operations such as extrusion process, be prepared into the master batch that contains bamboo charcoal, be called for short " bamboo charcoal master batch ", can be used as the product supply the market, perhaps further above-mentioned " bamboo charcoal master batch " mixed with the synthetic fiber material section, be prepared into the fiber of all size then in wire drawing workshop section, as make terylene, the fine count fiber of polypropylene fibre (≤1.0～1.5 dawn), middle dawn fiber (more than 1.5 dawn), three-dimensional mesopore fiber, five holes and seven apertures in the human head fiber etc.The suitable usage ratio of " bamboo charcoal master batch " wherein: with bamboo charcoal content in the control fiber at 0.5～3.0% (wt) degree of being.
(2) above-mentioned bamboo charcoal superfine powder (particle diameter≤0.5 μ m) is directly joined in the former slurry of synthetic fibers (as the former slurry of synthetic fibers such as viscose glue, acrylic fibers), bamboo charcoal content is 0.5～3.0% (wt) in the control slurry, back (can disperse with the auxiliary agent dispersed with stirring or with sand mill) fully is mixed, right method routinely is prepared into the fibrous material of all size in the wire drawing workshop section of chemical fibre factory, become various products for the dress ornament industrial processes, to meet the need of market.
In addition, point out to have the fibre stuff of semi-synthetic character or the slurry of other fibers (as slurry of the semi-synthetic character made with a large amount of albumen etc.) in passing, can add the bamboo charcoal superfine powder according to the method described above equally after, be processed into fiber product.In a word, every mode with fibre stuff is processed into the raw material of fiber, all should be considered as protection scope of the present invention as long as add the said bamboo charcoal superfine powder of the present invention person.
The specific embodiment
Further illustrate content of the present invention below in conjunction with embodiment, but these embodiment do not limit protection scope of the present invention.
Embodiment 1
The preparation of bamboo charcoal superfine powder (particle diameter≤0.5 μ m) product.
1, at first commercially available bamboo charcoal is carried out roughing and be crushed to (i.e. 300 orders) about particle diameter 50 μ m, and then ultra-fine grinding (about 5000 orders) to the particle diameter 2.6 μ m.Raw material as further super-fine processing.
2, with above-mentioned particle diameter is bamboo charcoal 100 grams of 2.6 μ m, place ball mill, add 0.5 gram dispersant again, and 400 ml deionized water, (sphere diameter is 0.5～3mm) ball milling 80 hours to the ball made from aluminium oxide or corundum, obtain the bamboo charcoal pasty material, taking-up is placed in the high speed centrifugation decanter type grader, carrying out classification handles, component wherein up to standard (being the slurry of particle diameter≤0.5 μ m) concentrates on the middle part of grader, deposit in after drawing in the storage tank, below standard coarse granule bamboo charcoal (pulp components of particle diameter＞0.5 μ m) concentrates on the grader outside, returns after drawing and continues processing in the ball mill.
3, with the above-mentioned component up to standard in the storage tank (can prepare simultaneously or a table grinder repeatedly prepares) of depositing in by many table grinders, placing 5000rpm/min high speed centrifugation putting-down machine to carry out centrifugal sedimentation separates, incline except that the filter cake after the clear liquid (clear liquid can return in the ball mill and prepare burden), dry down (to water content≤0.5%wt in 120 ℃～130 ℃ again, oven dry back material exists with block or uneven bulky grain shape form), and carry out ultra-fine grinding once more, after collecting, packing, can be used as the product supply the market.
Wherein said dispersant, because it uses the object synthetic fiber material different and different, compatible with the antistatic agent in the concrete object synthetic fibers at least usually, so specifically do not limit, branch of industry can be selected according to the production chain of oneself.Bamboo charcoal yield maximum can reach 60% (wt) in the component up to standard, the bamboo charcoal weight when testing to drop into.In addition, what of dispersant dosage also have bigger influence to the yield of bamboo charcoal up to standard, are 0.2% o'clock as dispersant dosage, and under same ball milling condition, the yield of its bamboo charcoal up to standard only is 20%; So dispersant dosage is 0.5% o'clock, 80 hours ball milling time was suitable selection; When the consumption of dispersant reached 1%, dispersion system was then more stable, but yield is constant substantially; As prolong the ball milling time, the yield of bamboo charcoal up to standard can slightly increase, but it is not remarkable, as the ball milling time decreased, the then then corresponding minimizing of the yield of bamboo charcoal up to standard, when the ball milling time is 24 hours, the yield of bamboo charcoal up to standard only is about 25%, in other words, being ready to select the short ball milling time as branch of industry, is to produce qualified products, but below standard component proportion is bigger, more by the bamboo charcoal particle quantity of returning reprocessing after the classification processing, need expend more non-cutting time, economically may not be worthwhile.
Embodiment 2
Bamboo charcoal superfine powder (particle diameter≤0.5 μ m) is added into preparation " bamboo charcoal master batch " in the synthetic fiber material.
The bamboo charcoal superfine powder of embodiment 1 gained is added in the synthetic fibers section of 2kg, the addition of bamboo charcoal can be chosen in 10～35% (wt) scope, said section is a kind of in terylene, the polypropylene fibre, place small-sized laboratory under 160 ℃, fully to mediate half an hour with kneader, and then place screw extruder, be prepared into the fiber master batch that contains bamboo charcoal at 260 ℃ of following extruder grains, be called for short " bamboo charcoal master batch ", can be used as the product supply the market.
Embodiment 3
The preparation of all size " bamboo-carbon fibre ".
" the bamboo charcoal master batch " of embodiment 2 gained mixed and drying according to a certain percentage with synthetic fibers sections (as terylene, polypropylene fibre etc.), wherein said " certain proportion " means with synthetic fiber material by the gross weight timing, the content of bamboo charcoal should be chosen in 0.5～3.0% (wt) scope, then the wire drawing workshop section of chemical fibre factory routinely technology prepare all size fiber product, as being processed into products such as thin dawn (≤1.0～1.5 dawn), middle dawn (more than 1.5 dawn), three-dimensional mesopore fiber, five holes, seven apertures in the human head fiber, as processing raw material of dress ornament industry, supply the market.
Embodiment 4
The application of bamboo charcoal superfine powder (particle diameter≤0.5 μ m) in the fibrous raw material slurries
The ultra-fine plastochondria of bamboo charcoal of embodiment 1 gained is added directly in the fibrous raw material slurries (as synthesising fibre raw slurries such as viscose glue, acrylic fibers, perhaps other raw slurry), pass through dispersion treatment, the slurries that will contain the bamboo charcoal superfine powder then the wire drawing workshop section of chemical fibre factory routinely processes become the fiber product of all size, as the raw material of dress ornament industry, supply the market.Wherein the addition of bamboo charcoal superfine powder should be controlled in 0.5～3.0% (wt) scope (with contained synthetic fiber material dry weight basis in the slurries); The fiber product of said all size except referring to be processed into the embodiment 3 said products, can also be processed into fine denier filament, further satisfies the requirement that dress ornament industry is selected raw material.
In a word, therefore: as long as overcome the technological difficulties of bamboo charcoal ultra-fine grinding, with the bamboo charcoal ultra-fine grinding to particle diameter≤0.5 μ m, just can easily bamboo charcoal be applied in the raw material of synthetic fibers, be prepared into all size synthetic fiber products, make various functional dress ornaments again, to satisfy the demand in market.In addition, point out in passing: contain the fiber of bamboo charcoal superfine powder, have functions such as high warming and radiation far infrared, antibiotic and high absorption, and can equilibrium water conten, so it will become a kind of new raw material of 21st century functional health dress ornament.
Claims (3)
1, a kind of processing method of bamboo charcoal superfine powder, this method at first with bamboo charcoal roughing to particle diameter≤50 μ m, super-fine processing is to the particle diameter 2.0 μ m then, further carry out wet method super-fine processing again, it is characterized in that: 0.5～1% (wt) that presses the bamboo charcoal amount adds dispersant, adding deionized water again, to be mixed with solid content be 10～30% mixtures, places ball mill to carry out ultra-fine grinding 24～100 hours; Taking-up is placed on carries out super-fine classified processing in the decanter type centrifugal classifying, component up to standard, and bamboo charcoal particle diameter≤0.5 μ m is drawn in the middle of grader, and below standard component (coarse granule particle diameter＞0.5 μ m) is then returned and is proceeded processing in the ball mill; Component up to standard is at first carried out the high speed centrifugation sedimentation, and the filter cake that separation is removed after the clear liquid is dried to dried (or being dried to water content≤0.5%) again under 120 ℃～130 ℃; Dried material promptly gets the said particle diameter of the present invention≤0.5 μ m bamboo charcoal superfine powder product again through ultra-fine grinding, collection, packing; Wherein said dispersant is to be a cationoid type surfactant of representative with the Si ion, or is a kind of among the class neutral surface active agent of representative or their mixture with Si and Al ion; The maximum yield of the qualified products of classification gained (component up to standard) is 60% (wt) of inventory (bamboo charcoal).
2, the application of a kind of bamboo charcoal superfine powder in synthetic fibers is characterized in that:
(1) the described bamboo charcoal superfine powder of claim 1 and fibrous raw material (as terylene, polypropylene fibre or the section of other synthetic fibers) section is mixed, by technologies such as mixing, extruding, be prepared into the synthetic fibers master batch that contains bamboo charcoal, abbreviation " bamboo charcoal master batch " then;
(2) above-mentioned " bamboo charcoal master batch " mixed with the synthetic fiber material section, be prepared into the fiber of all size by drawing process, as make the fine count fiber (≤1.0～1.5 dawn) of terylene, polypropylene fibre, middle dawn fiber (more than 1.5 dawn), three-dimensional mesopore fiber, five holes or seven apertures in the human head fiber; The suitable usage ratio of " bamboo charcoal master batch " with control mixed material in bamboo charcoal content at 10～35% (wt); Bamboo charcoal content is at 0.5-3% (wt) in the fiber;
(3) or with the said bamboo charcoal superfine powder of claim 1 directly join in the former slurry of synthetic fibers, (is benchmark with the siccative) bamboo charcoal content is 0.5～3.0% (wt) in the control slurries compound, after fully being mixed, be prepared into the fiber that all size contains bamboo charcoal by drawing process, as viscose rayon and acrylic fiber; Except the fiber that can be made into (2) described specification, can also make fine denier filament.
3, as the application of bamboo charcoal superfine powder in the former slurry of fiber as described in the claim 2, it is characterized in that: said fibre stuff also comprises the raw material that is processed into fiber in the fibre stuff mode, as the semi-synthetic character slurry of making by albumen, as long as add bamboo charcoal superfine powder of the present invention, all can make fiber with health care.
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| CNB031505376A CN1302900C (en) | 2003-08-25 | 2003-08-25 | Processing method of bamboo carbon ultrafine powder and its application in synthetic fiber |
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| CNB031505376A CN1302900C (en) | 2003-08-25 | 2003-08-25 | Processing method of bamboo carbon ultrafine powder and its application in synthetic fiber |
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| CN1590051A true CN1590051A (en) | 2005-03-09 |
| CN1302900C CN1302900C (en) | 2007-03-07 |
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