CN101343850A - Fibre conditioning plate - Google Patents
Fibre conditioning plate Download PDFInfo
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- CN101343850A CN101343850A CNA2008100390740A CN200810039074A CN101343850A CN 101343850 A CN101343850 A CN 101343850A CN A2008100390740 A CNA2008100390740 A CN A2008100390740A CN 200810039074 A CN200810039074 A CN 200810039074A CN 101343850 A CN101343850 A CN 101343850A
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Abstract
The invention provides a fiber humidity adjusting board. The fiber humidity adjusting board is obtained by soaking a composite board in a humidity adjusting liquid, and the composite board is composed of a fiber material treated by carboxylation and porous inorganic particles dispersed in the fiber material, wherein the mass of the inorganic particles accounts for 5 to 30 percent of the solid content of the fiber, and the inorganic particles adopt one or the combination of silica gel, clay, concavo-convex rods, diatomaceous earth, activated carbon, wood charcoal and bamboo charcoal. The invention has the advantages that the fiber humidity adjusting board is a precise humidity adjusting product, when the ambient humidity changes, response can be rapidly made, and through moisture absorbing and releasing, the ambient humidity can be balanced, so as to maintain the humidity in the environment to be constant and ensure that the phenomena of wetting, mould damage or drying and cracking of the stored articles can not occur within the adjusting environment. A strap-shaped fiber humidity adjusting board is adopted, which can be cut arbitrarily; the humidity adjustment can be performed in function, and the moisture holding amount can reach and surpass the equivalent international humidity adjusting products. The fiber humidity adjusting board adopts non-toxic, harmless and recoverable raw material, and the fiber humidity adjusting board is a new-generation green and environment-friendly product.
Description
Technical field
The present invention relates to a kind of humidity regulation material, especially can regulate and control cardboard shape product---the fibre conditioning plate of relative humidity in the subenvironment.Conditioning plate belongs to a kind of product that is used to control relative confined space humidity range, is the humidity adjusting material of a kind of " high accuracy ", not only regulates humidity by hygroscopic desiccation, also can come equilibrium humidity by moisture releasing.
Background technology
The safety of historical relic is preserved, food fresh-keeping, and guaranteeing the quality etc. of medicine, goods had relatively high expectations to the relative humidity of preserving environment, needs a metastable humidity value.Current, the envionmental humidity regulative mode can be divided into active method and passive type method by whether consuming the artificial energy source.Active method mainly is existing HVAC technology, it is mainly used in the humidity of indoor environments such as regulating merchandise warehouse, Cultural Relics Storage, this method need consume a large amount of energy, and the influence of the factors such as layout of the stationarity of control and the precision operation principle that is subjected to equipment, air pipeline.The passive type method then is to utilize the moisture adsorption and releasing characteristic of some material to regulate and control the humidity of environment, that this mode has is energy-conservation, control steadily, advantages such as safety, be specially adapted to steady control to humidity in the airtight relatively subenvironment.
Passive type humidity regulation mode is used widely, and present most of humidity regulation material belongs to the drier category, based on functions/drying, i.e. and continuous unnecessary steam in the absorbing environmental; Come the balance ambient humidity and need discharge moisture when ambient humidity is lower, this " moisture releasing " function is the technical indicator that desiccant product does not have.This has influenced its range of application greatly.Every kind of material all has the preservation humidity range of its best, as to some precious historical relic, the too low meeting of humidity causes craze and transfiguration, humidity too Gao Zehui is grown mould, control the humidity that it preserves environment, be not to be simple drying, this just needs truly can inhale the conditioning agent of setting level weighing apparatus between certain humidity province.
Conditioning agent refers to need not rely on the moisture absorption and desorption property of self by any artificial energy source and machinery as a kind of means of passive humidity control and regulation, responds to the variation of space, place air humidity, regulates the material of relative air humidity automatically.Mainly contain following four types at present: silica type, inorganic salts, inorganic mineral class, high-molecular organic material class.But these conditioning agents all have certain weak point, and are bad as the moisture adsorption and releasing characteristic; The moisture adsorption and releasing finite capacity; Itself have poisonous, harmful substance etc., can't directly apply to the storage condition of food, medicine and the humidity control that historical relic is preserved environment.
In addition, as the product form of conditioning agent, be mainly graininess at present.The general pouch-packaged that adopts gas permeability.When reality is used, must reserve suitable space and place conditioning agent.Such type of service because quality is bad or collided and break, causes the graininess conditioning agent to leak sometimes, pollutes and preserves article, has certain potential safety hazard.
Therefore, a kind ofly have good damping performance, humidity adjusting material pollution-free, easy to use has broad application prospects and huge market capacity.
Summary of the invention
The technical problem that the present invention need solve provides and a kind ofly takes up room for a short time, is particularly useful for the fibre conditioning plate that small enclosure space uses, and it is used for historical relic's protection, food and medicine is preserved and should be had the characteristics safe and harmless, pollution-free, energy-conservation, that adjustable wet is good concurrently.
The scheme that the present invention solves the problems of the technologies described above is: a kind of fibre conditioning plate, by through the fibrous material of carboxylated processing and be dispersed in the composite plate that the porous inorganic particulate in the fibrous material constitutes, soak into and obtain through damping liquid, wherein, the quality of described inorganic particle is 5～30% of a fiber solid content, and described porous inorganic particulate is a kind of or its composition in silica gel, clay, attapulgite, diatomite, active carbon, charcoal, the bamboo charcoal etc.The main purpose of adsorption particle is the solid water ability and the damping ability of supplementary fibre base material.
The quality of inorganic particle is specifically as follows 5,8,10,12,15,18,20,22,25,28 or 30% of fiber solid content.
The present invention can cut size arbitrarily according to application space size and humidity requirement, and is easy to use, do not take up space, and the damping ability is strong.With the fibrous material after handling is the moisture absorption base material, successively by adding the porous adsorption particle and impregnated in damping liquid, and high-temperature sterilization then, evaporate to dryness and making.
The carboxylated processing of fiber of the present invention is to utilize to have the organic compound of acyl group with the hydroxyl in the fiber reacts, slough 1 micromolecule earlier after, again fiber is put into the alkaline solution hydrolysis, the processing general formula is:
Wherein, R and R ' represent hydrocarbon chain; X represents the N molecule functional group, as-Cl ,-OH ,-NH
2In processing, can adopt a kind of or its composition in the amides compounds such as acrylamide, polyacrylamide, cationic polyacrylamide, anionic polyacrylamide, non-cationic acrylamide, polyamide derivative, the mass concentration of amides compound is 0.5～25%; Wherein, alkaline solution is that alkali solute is made in the aqueous solution, and described alkali solute comprises a kind of or its combination in NaOH, clorox, potassium hydroxide, the calcium hydroxide etc., and the mass concentration of alkali solute is 0.1～40%.
Fibrous material of the present invention comprises long fiber and staple fibre, described long fiber and staple fibre are two kinds or above composition in xylon, cellulose derivative, cotton, straw, reed, cotton spinning waste material, wood pulp waste material, expanded finished product cotton wastes material, the synthetic high polymer, wherein, the mass ratio of long fiber and staple fibre is 1～5: 1.
The mass ratio of long fiber and staple fibre is specifically as follows: 1,1.2,1.5,1.8,2,2.2,2.5,2.8,3,3.2,3.5,3.8,4,4.2,4.5,4.8 or 5: 1.
Synthetic high polymer of the present invention is one or more the combination in polyester, polypropylene, polyamide, the nylon.
Damping liquid of the present invention is that conditioning agent is made in the aqueous solution, and described conditioning agent is one or more the composition in calcium chloride, sodium chloride, lithium chloride, the calcium hydroxide.
Wherein, by weight percentage, the consumption of calcium chloride is 5～30% of a damping liquid; Amount of sodium chloride is 0.5～5% of a damping liquid; The consumption of lithium chloride is 0.5～5% of a damping liquid; The consumption of calcium hydroxide is 5～20% of a damping liquid.
By weight percentage, concrete, the consumption of calcium chloride can be 5,6,8,10,12,15,18,20,22,25,28 or 30% of damping liquid;
Amount of sodium chloride can be 0.5,0.8,1,1.2,1.5,1.8,2,2.2,2.5,2.8,3,3.2,3.5,3.8,4,4.2,4.5,4.8 or 5% of damping liquid;
The consumption of lithium chloride can be 0.5,0.8,1,1.2,1.5,1.8,2,2.2,2.5,2.8,3,3.2,3.5,3.8,4,4.2,4.5,4.8 or 5% of damping liquid;
The consumption of calcium hydroxide can be 5,6,7,8,9,10,11,12,13,14,15,16,17,18,19 or 20% of damping liquid.
The mass percent of salt solute is preferably 25～40% in the damping liquid, dip time 15～30 minutes.
Because some fibrous material is loosely organized, in order to increase the cohesive force in the preparation process, can also comprise wet strength agent in the damping liquid of the present invention, by weight percentage, wet strengthening agent is 0.01～0.1% of a damping liquid.Wet strength agent can be used RS-05 (PAE), RS-07 (PPE) etc.
Porous inorganic particulate of the present invention can be dispersed in earlier in the aqueous dispersions of fibrous material of carboxylated processing, reshaping dehydration parison, and then, parison impregnated in the damping liquid fully absorption damping liquid solute.
Superiority of the present invention is: fibre conditioning plate is a kind of accurate humidity regulation product, when ambient humidity changes, can react fast, and by absorbing, discharge the moisture balance ambient humidity, humidity is constant in the maintenance environment.Make that preserving article does not make moist, goes mouldy or phenomenons such as drying, cracking in the environment of being regulated and control.Adopt the fibre conditioning plate of sheet, can cut arbitrarily; On function, can carry out humidity regulation, its wet volume capacity meets and exceeds international similar damping product; In selection, all adopt nontoxic, callable raw material, be the Green Product of a new generation.
Description of drawings
Fig. 1 is the wet volume capacity comparison diagram of fibre conditioning plate of the present invention and other hygroscopic materials.
Fig. 2 is the wet volume capacity curve map of each humidity section of fibre conditioning plate of the present invention.
Fig. 3 is the sucting wet curve figure of fibre conditioning plate of the present invention.
Fig. 4 is the moisture releasing curve map of fiber debugging plate of the present invention.
The specific embodiment
1, the selection of fibrous material:
In the fiber of plant class, xylon and cotton fiber are two the most basic big fibers, and their performance is more as shown in table 1:
Table 1
| Fiber length | The loss degree | Hydrophily | Molding effect | The drainage effect | |
| Xylon | Short | It is big to run off | Difference | Good | Hurry up |
| Cotton fiber | Long | It is little to run off | Good | Difference (conglomeration) | Slowly |
Several sample substrates are smashed the product that obtains after stirring, thin up, dehydration moulding, the oven dry processing respectively compare, the result selects shown in the comparison sheet as table 2 fibrous raw material:
Table 2
| Raw material | The uniform in shaping degree | Technological feasibility (water filtering performance) | Impurity |
| Long-staple cotton class textile waste | Difference | Difference | Do not have |
| Staple fibre wood pulp class waste material | Good | Difference | Do not have |
| Texturized fiber class waste material | Good | Good | Have |
| Part long fiber and part staple fibre waste material | Good | Good | Do not have |
It is fibrous material that the present invention adopts the composition of long-staple cotton class waste material and staple fibre waste material, and porous inorganic particulate is a silica gel, and is specifically as shown in table 3:
Table 3
| Raw material | Embodiment 1 | Embodiment 2 | Embodiment 3 |
| Long-staple cotton class waste material: staple fibre waste material (mass ratio) | 2.33∶1 | 1.5∶1 | 4∶1 |
| Porous inorganic particulate (accounting for fiber solid content %) | 10 | 15 | 20 |
| The mass concentration (%) of damping liquid salt solute | 33 | 33 | 40 |
| Comprehensive damping performance | Good | Good | Can |
The damping mechanism of fibre conditioning plate comprises the absorption of porous mass and the deliquescence of the salts substances crystallization water.
The absorption porous inorganic particulate is to add in molding procedure.Generally speaking, to account for the mass percent of fiber solid content be 5～30% to the addition of porous inorganic particulate.
Damping liquid is that conditioning agent is made in the aqueous solution, described debugging agent is one or more the composition in calcium chloride, sodium chloride, lithium chloride, the calcium hydroxide, wherein, by weight percentage, the consumption of calcium chloride is 5～30% of a damping liquid, amount of sodium chloride is 0.5～5% of a damping liquid, and the consumption of lithium chloride is 0.5～5% of a damping liquid, and the consumption of calcium hydroxide is 5～20% of a damping liquid.
Can also comprise wet strength agent in the damping liquid, consumption is 0.01～0.1% of a damping liquid.
When salt solute mass percent is in 33% left and right sides in the damping liquid (mainly being that calcium chloride, sodium chloride and a small amount of lithium chloride modulation form), fiber base material after the squeezing is soaked in the damping liquid of this concentration fully, the getable solid content of this base material then, finished product after oven dry just can reach preferably wettability power (in 90% relative humidity, hydroscopicity can reach 100%), the solid water ability of fiber base material also reaches best simultaneously.If damping liquid concentration is lower than 33%, especially be lower than at 25% o'clock, then hydroscopicity can be lower than 100%; If damping liquid concentration is higher than 33%, especially greater than 40% o'clock, then the solid water ability of fiber base material can reduce, that is to say that moisture absorption is saturated after, firmly the phenomenon of reverse osmosis water can appear in extrusion fiber.So unless the client has specific demand (to the specific requirement of hydroscopicity), otherwise this damping liquid concentration should be controlled at 25～40%.
The similar desiccant product with other of fibre conditioning plate of the present invention compares, and has surveyed their balance Moisture absorption rate under each relative humidity, result such as table 4:
Table 4
See also Fig. 1 for shown in the wet volume capacity comparison diagram of fibre conditioning plate of the present invention and other hygroscopic materials, from above data as seen: the wet volume capacity of fibre conditioning plate of the present invention in 30～50%, 40～60% and 60～80% humidity ranges all is to reach about 30%.Just in 50～70% scope, wet volume capacity is about 20%.And the wet volume capacity of other common desiccant products is all less.
2, the selection of damping liquid:
The fibrous material base material adds silica gel in forming process be porous inorganic particulate, and adopt the damping liquid of different formulations that the fibrous material base material is flooded, and technologies such as dipping back drying, oven dry are made fibre conditioning plate, and are specifically as shown in table 5:
Table 5
| Silica gel (accounting for fiber solid content %) | Damping formula of liquid (accounting for damping liquid percentage %) | |
| Embodiment 4 | 13 | Lithium chloride 3% |
| |
9 | Calcium chloride 8%, lithium chloride 1.5% |
| Embodiment 6 | 5 | Calcium chloride 12%, lithium chloride 1% |
See also the wet volume capacity curve map of Fig. 2 for each humidity section of fibre conditioning plate of the present invention, the size of visible wet volume capacity is relevant with the different proportion of silica gel amount, calcium chloride, lithium chloride.When the calcium chloride content increase, when silica gel content reduced, the wet volume capacity of fibre conditioning plate of the present invention will increase, and the increase situation of middle low humidity is comparatively obvious.
Fig. 3 is that the sucting wet curve figure of fibre conditioning plate of the present invention and Fig. 4 are for shown in the moisture releasing curve map of fiber debugging plate of the present invention.When the calcium chloride content increase, when silica gel content reduced, the speed of moisture absorption and moisture releasing all increased to some extent, and under high humility, it is more obvious that speed increases situation.
The moulding of fibre conditioning plate can be undertaken by following technology:
---thin up is to certain proportion---enters the moulding pond and adds Powdered porous inorganic particulate that---the dehydration moulding---impregnated in the damping liquid that------overlay film or cut---cuts to required specification that------inspect qualified back packs---dispatches from the factory to load moulding to the high-temperature sterilization drying to fibrous raw material after the carboxylated processing
In the above-mentioned technology, packaging material adopts the ventilative reverse-osmosis-prevention packaging material structure of patent No. ZL2007200678509.
The present invention can be in following field: the industries such as medicine, health products, biological reagent, food; The industries such as precision instrument manufacturing, electronics, optics, components and parts manufacturing, communication apparatus; The industries such as textile industry, leather industry, handicraft, musical instrument, toy manufacturing; Raw material manufacturing industry, fine chemistry industry, metal dust, medical material, various powder stock; Grain and oil goods, raw-food material, local and special products, seed, Chinese medicine; The collection of historical relic calligraphy and painting, book and file keeping; Family daily life is such as food cans, tea can, health products, cosmetics, wardrobe.
The cost performance of fibre conditioning product is better than silica gel product, and larger potentiality are arranged.
The advantage of this product: (1), damping scope wide (can satisfy the control of basic, normal, high several humidity ranges); (2), damping efficient is high; (3), safety and sanitation, be difficult for eating by mistake; (4), do not take packaging space (can change various shape sizes by demand); (5), the feature of environmental protection is good, degradable, can recycle (can reach original damping ability after the drying); (6), manufacturability is strong, be suitable for producing in enormous quantities.
Conclusion:
1, fibre conditioning plate is the high technology content of producing as raw material take forestry products by-product, offal, the new high-tech product of high added value.
2, has obvious technical advance than like product, low cost and economic rationality.
3, having wide promotion and application prospect, is the model of the recycling economy of at present country's promotion.
Claims (8)
1, a kind of fibre conditioning plate, by through the fibrous material of carboxylated processing and be dispersed in the composite plate that the porous inorganic particulate in the fibrous material constitutes, soak into and obtain through damping liquid, wherein, the quality of described inorganic particle is 5～30% of a fiber solid content, and described inorganic particle is a kind of or its composition in silica gel, clay, attapulgite, diatomite, active carbon, charcoal, the bamboo charcoal.
2, fibre conditioning plate according to claim 1, it is characterized in that: described fibrous material is two kinds or an above composition in xylon, cellulose derivative, cotton, straw, reed, cotton spinning waste material, wood pulp waste material, expanded finished product cotton wastes material, the synthetic high polymer, comprise long fiber and staple fibre, the mass ratio of described long fiber and staple fibre is 1～5: 1.
3, fibre conditioning plate according to claim 2 is characterized in that: described synthetic high polymer is one or more the combination in polyester, polypropylene, polyamide, the nylon.
4, fibre conditioning plate according to claim 1 is characterized in that: described damping liquid is the aqueous solution of conditioning agent, and described conditioning agent is one or more the composition in calcium chloride, sodium chloride, lithium chloride, the calcium hydroxide.
5, fibre conditioning plate according to claim 4 is characterized in that: in the described damping liquid amount of conditioning agent by mass percentage, the consumption of calcium chloride is 5～30% of a damping liquid; Amount of sodium chloride is 0.5～5% of a damping liquid; The consumption of lithium chloride is 0.5～5% of a damping liquid; The consumption of calcium hydroxide is 5～20% of a damping liquid.
6, fibre conditioning plate according to claim 5 is characterized in that: the mass percent of salt solute is 25～40% in the described damping liquid.
7, fibre conditioning plate according to claim 1 is characterized in that: described fibrous material is the fiber through carboxylated processing.
8, fibre conditioning plate according to claim 7; it is characterized in that: the carboxylated processing of described fiber is that utilization has the organic compound of acyl group and the hydroxyl in the fiber reacts; after sloughing 1 micromolecule earlier, fiber is put into the alkaline solution hydrolysis, the processing general formula is again:
Wherein, R and R ' represent hydrocarbon chain; X represents the N molecule functional group, comprises-Cl-OH ,-NH
2
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| CNA2008100390740A CN101343850A (en) | 2008-06-17 | 2008-06-17 | Fibre conditioning plate |
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|---|---|---|---|
| CNA2008100390740A CN101343850A (en) | 2008-06-17 | 2008-06-17 | Fibre conditioning plate |
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| CN101967775A (en) * | 2010-08-26 | 2011-02-09 | 浙江理工大学 | Method for preparing high-efficiency composite humidifying paper |
| CN102284988A (en) * | 2011-08-26 | 2011-12-21 | 浙江理工大学 | Preparation method for humidity adjusting fiberboard |
| CN103147359A (en) * | 2013-03-19 | 2013-06-12 | 郭漫笳 | Hanging raw stock added with tea dust and tea polyphenol and manufacturing method thereof |
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| CN101967775B (en) * | 2010-08-26 | 2011-12-07 | 浙江理工大学 | Method for preparing high-efficiency composite humidifying paper |
| CN102284988A (en) * | 2011-08-26 | 2011-12-21 | 浙江理工大学 | Preparation method for humidity adjusting fiberboard |
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| WO2020001621A1 (en) * | 2018-06-29 | 2020-01-02 | 上海衡元高分子材料有限公司 | Humidity-adjusting solution, environmental humidity adjustment item, and manufacturing method therefor |
| CN109232012A (en) * | 2018-09-11 | 2019-01-18 | 淮阴工学院 | Recessed soil or bentonite base plant fiber composite humidity adjusting material and its preparation method and application |
| CN109232012B (en) * | 2018-09-11 | 2021-04-23 | 淮阴工学院 | Attapulgite or bentonite-based plant fiber composite humidity control material |
| CN112898041A (en) * | 2018-09-11 | 2021-06-04 | 淮阴工学院 | Application of attapulgite or bentonite-based plant fiber composite humidity control material in indoor air purification |
| CN113024270A (en) * | 2018-09-11 | 2021-06-25 | 淮阴工学院 | Application of attapulgite or bentonite-based plant fiber composite humidity controlling material in heat insulation material |
| CN113024270B (en) * | 2018-09-11 | 2022-07-15 | 淮阴工学院 | Application of attapulgite or bentonite-based plant fiber composite humidity control material in heat insulation material |
| CN112898041B (en) * | 2018-09-11 | 2022-07-15 | 淮阴工学院 | Application of attapulgite or bentonite-based plant fiber composite humidity control material in indoor air purification |
| CN111332595A (en) * | 2020-03-16 | 2020-06-26 | 湘潭宏达防潮保鲜技术开发有限公司 | Processing and manufacturing method of bidirectional humidity control bag for cigar preservation |
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Application publication date: 20090114 |