CN102965992A - Fiber raw material - Google Patents
Fiber raw material Download PDFInfo
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- CN102965992A CN102965992A CN2012104922038A CN201210492203A CN102965992A CN 102965992 A CN102965992 A CN 102965992A CN 2012104922038 A CN2012104922038 A CN 2012104922038A CN 201210492203 A CN201210492203 A CN 201210492203A CN 102965992 A CN102965992 A CN 102965992A
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- straw skin
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- silk
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- 239000000835 fiber Substances 0.000 title abstract description 8
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- 239000010902 straw Substances 0.000 claims description 200
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Images
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- Fodder In General (AREA)
Abstract
The invention relates to a fiber raw material. The fiber raw material is corn stalk skins; the corn stalk skins comprise strip-shaped stalk skins and stalk skin silks; pulps remain on the strip-shaped stalk skins; the remaining quantity of the pulps on the strip-shaped stalk skins is not higher than 5%, preferably not higher than 3% and more preferably not higher than 0.5-2.5%. Through the adoption of the fiber raw material provided by the invention, the storage and transportation problems are preferably solved, the use performance is improved, the application field is expanded, the utilization value is enhanced, and the fiber raw materials can be purchased in bulk and can be industrially utilized on a large scale.
Description
Technical field
The present invention relates to a kind of plant straw fibers raw material, relate to specifically the fibrous raw material after a kind of process.
Background technology
Corn is to be made for feed to be main grain, warp, to raise the dual-purpose crop, and maize straw also is the important resources of production of worker, agricultural production.As a kind of resource, maize straw contains abundant nutrition and available chemical composition, can be used as the raw material of livestock feed.For a long time, maize straw is exactly one of the raw material of the main roughage of livestock.
Corn is as one of Three major grain crops, and the annual production of its byproduct maize straw reaches about 2.5 hundred million t, accounts for 30% more than of all kinds of agricultural crop straw total amounts, is only second to the U.S. in the world and occupies second.
The output of maize straw is so abundant, is not but rationally effectively utilized all the time.The mode of past people Treating straw is that small part is as the material of warming ﹠ cooking or the roughage of ruminant, major part abandon in ground or on-site incineration, Dark smoke billows, not only contaminated environment, destruction traffic, and production, life, the property of returning people bring threat.Along with growing in intensity of the progress of science and technology and resource, energy crisis; the Chinese government and the people recognize the importance of rationally utilizing agricultural crop straw; took much count of up till now the comprehensive utilization of agricultural crop straw from about 1980, many enterprises, scientific research institute and colleges and universities are all in the new way of seeking the maize straw comprehensive utilization always.At present maize straw all has utilization in various degree in plant husbandry, animal husbandry and industrial production, but because the restriction of technical merit and machining level, and the utilization of maize straw is still belonged to the roughing stage.Most of utilize for be whole strain stalk, whole strain is processed, its crust and the mutually mutual interference of interior flesh have brought insoluble obstacle for many methods of utilizing.
And because the maize straw stem stalk of whole strain harvesting is thick and stiff, natural density is little, and (the dried maize straw density of stacking through the measuring and calculating nature only is 35～45kg/m
3), therefore, adopt the maize straw of whole strain results to store and transportation is a great problem, usually because the existence of moisture so that cost of transportation increases, and store and transportation in cause a large amount of rotten, thereby limited its application.The way of both economical practicality is silk while gathering in, and it is soft in small, broken bits that the stalk quality after the silkization becomes, and natural resiliency reduces greatly.Adopt the hydraulic pressure packaging technique, with the compression of the stalk behind silk packing, form the square bale of high density, profile rule.Be conducive to storage and the transportation of stalk, can the substitute feed grass as the grain rations of surviving the winter of cattle and sheep, also can long distance transportation as the raw material of industry.
Maize straw is rubbed a technology, the bundling technology is a kind of novel straw processing method that developed recently gets up, " maize straw is rubbed the development of silk, bundling outfit " (Xinjiang agricultural machanization, the 2nd phase in 2008) discloses a kind of maize straw and rubbed silk, bundling outfit; (science and technology of the farm machinery is promoted " the careless technology of silk system is rubbed in maize straw mechanization ", 2004.11) a kind of maize straw rubbing technology proposed, becoming traditional horizontal guillotine cutting of maize straw rubs into vertically squeezing silk, the maize straw rubbing is become soft thread forage grass, maize straw has destroyed the stalk epidermal structure after squeezing the silk rubbing, make forage grass soft, good palatability can improve grazing rate.
Yet it is rear for forage grass that above-mentioned technology only limits to that maize straw is squeezed silk, greatly limited its range of application.And owing to adopt and above-mentionedly flesh not removed when rubbing a thread technology, contain the whole flesh of maize straw in the corn stalk skin of the filament that processing obtains, and owing to contain a certain amount of xylan class hemicellulose in the flesh, this class hemicellulose is under the effect of illumination and oxygen, be easy to oxidized generation carbonyl chromophore and carboxyl auxochrome, when being used for papermaking, can cause serious brightness reversion phenomenon; And because the effect of flesh self fragility, the existence of a large amount of fleshes is so that the tear index of paper has decline to a certain degree.
Like this, how skin, flesh and the leaf with maize straw separates on a large scale, improves serviceability, so that a kind of maize straw raw material of performance improvement to be provided, to widen its Application Areas, improves value, just becomes the key link of maize straw raw material comprehensive utilization.
Summary of the invention
For addressing the above problem, purpose of the present invention just is to provide a kind of fibrous raw material, has solved well the problem that stores and transport, improve serviceability, widened Application Areas, improved value, can be purchased in large quantity, be realized the heavy industrialization utilization.
For achieving the above object, the present invention adopts following technical scheme:
A kind of fibrous raw material, wherein, described fibrous raw material is maize straw skin; Described maize straw skin comprises straw skin and the straw skin silk of strip; Remaining on the straw skin of described strip have a flesh; The remaining quantity of described flesh on the straw skin of strip is not higher than 5%, preferably is not higher than 3%, and more preferably 0.5～2.5%.
Among the present invention, the content of the straw skin of described strip is 33.3～50wt%, and the content of described straw skin silk is 50～66.7wt%.
Among the present invention, described straw skin silk comprises the straw skin silk of being combined with the straw skin of strip and the straw skin silk of not being combined with the straw skin of strip.
Among the present invention, described straw skin silk of being combined with the straw skin of strip is included in the straw skin silk of stalk tubercle part combination and at the straw skin silk of other position combination of stalk.
Among the present invention, described straw skin silk in the combination of stalk tubercle part is pencil; Described at the continuous straw skin silk of straw skin silk forming section on skin of other position combination of stalk.
Among the present invention, on the described skin along the slight crack that the straw skin silk that forms partial continuous is arranged on the stalk longitudinal direction.
Among the present invention, described straw skin silk of not being combined with the straw skin of strip is thread.
Among the present invention, the length of the straw skin of described strip is not more than 45cm.
Among the present invention, the moisture of described maize straw skin is 15～45%.
Fibrous raw material of the present invention can be applicable to field of papermaking.
Fibrous raw material of the present invention adopts following process route to obtain:
The maize straw that the corn maturity period is gathered in the crops obtains through the mechanical means of pushing, silk is rubbed, tears, blends or rubbed to stone roller with the hands; Be preferably after agricultural harvester harvesting, skin flesh leaf separate, collection obtains when being 15～45% to moisture; More preferably after agricultural harvester harvesting, skin flesh leaf separate, in the fields airing or air-dryly collect that bundling obtains when being 15～45% to moisture.
Realize that above-mentioned technical process reasonable selection corollary equipment is crucial, the equipment of processing on the market at present agricultural crop straw is a lot, but will note supporting science, reasonability when selecting, and makes the equipment performance maximum efficiency of apolegamy, guarantee the continuity of production, reach the optimum productivity index.Owing to be the crop stem of harvesting in the field, therefore will select can be at the equipment of limit, field walking edge work, with the conveniently moving that guarantees equipment, flexibly, realizes farm work.The present invention selects agricultural harvester, also can realize the separation of skin flesh leaf in harvesting.And at the supporting skin flesh leaf separator of agricultural harvester installation, this device can adopt multiple mechanical type, adopts extruding, grind multiple mechanical means such as rubbing, tear, blend, rub silk with the hands, thereby reaches the technique effect with the skin flesh leaf separation of maize straw.Stalk after the present invention will process is in the field airing, impact by factors such as air oxidation, ultraviolet ray irradiations, thereby play the effect of sterilization, make the maize straw raw material for preparing be difficult for going mouldy, shelf-life prolongs, and can accelerate the oxidation Decomposition of sugar in the stalk, Protein components, thereby further reduces the content of impurity in the fibrous raw material, further improve cellulosic content, thereby more adapt to the commercial Application such as papermaking.
Agricultural harvester of the present invention comprises chassis 4, power set, electric device, hydraulic system, driver's cabin 5, the receipts stem ceding of Taiwan 1 of harvesting corn stalk, maize straw is torn, blend, and with skin, flesh, the maize straw skin flesh leaf separator 3 that leaf separates, maize straw under the harvesting is transported to maize straw is torn, blend and with skin, flesh, the defeated stem device 2 of the maize straw skin flesh leaf separator 3 that leaf separates, between each structure or each structure directly use securing member to connect with the chassis, guarantee bonding strength, avoid in the process of harvesting corn stalk, accident occurring.
Described maize straw skin flesh leaf separator 3 comprise be used to the axial-flow type drum 11 of tearing, blend maize straw and separating corn straw skin flesh leaf be used to leak down to separate after flesh and the sieve 12 of leaf.
Described axial-flow type drum 11 is provided with a plurality of teeth be used to tearing, blend maize straw and separating corn straw skin flesh leaf.
Described tooth is one or more in screw-shaped bar tooth, spike tooth or the dull and stereotyped tooth.
Described sieve 12 is provided with a plurality of maize straw fleshes of separation and holes that leaf passes through of supplying.
The described receipts stem ceding of Taiwan 1 is provided with cutter A, the downward-sloping certain angle of described cutter A along continuous straight runs, the maize straw that can avoid like this being cut off by cutter A is not cut by cutter when also not entering harvester again, can not enter harvester and blends so that one section stalk drops to ground.
Described maize straw skin flesh leaf separator 3 also comprises straw skin dispersal device 6 and anti-block apparatus 7.
Straw skin dispersal device 6 can be avoided maize straw skin to be sticked together and guide maize straw skin to be scattering into a side of harvester, can avoid like this trailing wheel of harvester to roll the straw skin that is scattering into the ground, better to store up.Because harvesting time, the moisture of maize straw was higher, the flesh after the separation and leaf are all very moist, be easy to occur alluvial and stop up behind 12 the hole of sifting out, and have had anti-block apparatus 7 can allow the flesh of separator well and leaf fall very smoothly.
Described agricultural harvester also comprises receives stem cutting table auger 8, chain harrow assembly 9, cut flow roller 10, oscillating screen plate 13, distributes screw feeder 14 and fan 15.
Realize the tearing of maize straw, blend and the separating of skin, flesh, leaf that the rotating speed of axial-flow type drum d is very crucial, among the present invention, the rotating speed of described axial-flow type drum 11 is 900～1000r/min, preferred 950～1000r/min.
Obtain good separating effect, according to the crop situation, the gap that regulates between axial-flow type drum 11 and the sieve 12 is very important, the fourth gear gap is arranged for this reason, be 5mm, 10mm, 15mm, 20mm, when crop is moist, use little gap between axial-flow type drum 11 and the sieve 12, when crop is dry, use large gap between cylinder and the sieve.
Compared with prior art, the present invention has following advantage:
(1) maize straw (whole bar) can not be purchased in enormous quantities, can't realize the large-scale industry utilization; Maize straw raw material of the present invention can be purchased in enormous quantities, can realize the heavy industrialization utilization;
(2) maize straw (whole bar) transportation, bearing capacity are low, and maize straw raw material transportation of the present invention, bearing capacity are high, the vehicle of equal transport power, each car 13 tons of maize straws (whole bar) of only freighting; Maize straw raw material of the present invention then can fill 35 tons;
(3) store same homalographic, stack same height, maize straw (whole bar) only can be deposited 350 kilograms/square metre, and maize straw raw material of the present invention can be deposited 1 ton/square metre;
(4) peasant with harvest corn after, will be behind the corn straw smashing field (rotary tillage) also, expense: 150 yuan/mu; Reclaimed by industrialization straw harvesting, separation, packing, the soil rotary tillage obtains maize straw raw material of the present invention, the total expense: 100 yuan/mu.
Description of drawings
Fig. 1 is the structure chart of agricultural harvester of the present invention;
Fig. 2 is that maize straw is carried schematic diagram among the present invention;
Fig. 3 is straw skin dispersal device and anti-block apparatus installation site schematic diagram in the corn picker of the present invention;
Wherein:
The defeated stem device of 1---receiving the stem ceding of Taiwan, 2---, 3---rice straw skin flesh leaf separator, 4---the chassis, 5---driver's cabin, 6---the straw skin dispersal device, 7---anti-block apparatus, 8---receive the stem cutting table auger, 9-chain harrow assembly, 10---cut flow roller, 11-axial-flow type drum, 12---sieve, 13-oscillating screen plate, 14---distribute screw feeder, 15---fan.
The specific embodiment
Below be the specific embodiment of the present invention, described embodiment is in order to further describe the present invention, rather than restriction the present invention.
Embodiment 1
A kind of fibrous raw material, wherein, described fibrous raw material is maize straw skin; Described maize straw skin comprises straw skin and the straw skin silk of strip; Remaining on the straw skin of described strip have a flesh; The remaining quantity of described flesh on the straw skin of strip is 0.5%.
The content of the straw skin of described strip is 33.3wt%, and the content of described straw skin silk is 66.7wt%.
Above-mentioned fibrous raw material adopts following process route to obtain:
With the maize straw of corn maturity period results through agricultural harvester of the present invention (as depicted in figs. 1 and 2) gather in, after skin flesh leaf separates, bundling obtained when airing to moisture was 15% in the fields.
Referring to Fig. 1 and Fig. 2, the agricultural harvester that present embodiment adopts comprises chassis 4, power set, electric device, hydraulic system, driver's cabin 5, the receipts stem ceding of Taiwan 1 of harvesting corn stalk, maize straw is torn, blend, and with skin, flesh, the maize straw skin flesh leaf separator 3 that leaf separates, maize straw under the harvesting is transported to maize straw is torn, blend and with skin, flesh, the defeated stem device 2 of the maize straw skin flesh leaf separator 3 that leaf separates, between each structure or each structure directly use securing member to connect with the chassis, guarantee bonding strength, avoid in the process of harvesting corn stalk, accident occurring.
Described maize straw skin flesh leaf separator 3 comprise be used to the axial-flow type drum 11 of tearing, blend maize straw and separating corn straw skin flesh leaf be used to leak down to separate after flesh and the sieve 2 of leaf.
Described axial-flow type drum 11 is provided with a plurality of teeth be used to tearing, blend maize straw and separating corn straw skin flesh leaf.
Described tooth is one or more in screw-shaped bar tooth, spike tooth or the dull and stereotyped tooth.
Described sieve 12 is provided with a plurality of maize straw fleshes of separation and holes that leaf passes through of supplying.
The described receipts stem ceding of Taiwan 1 is provided with cutter A, the downward-sloping certain angle of described cutter A along continuous straight runs, the maize straw that can avoid like this being cut off by cutter A is not cut by cutter when also not entering harvester again, can not enter harvester and blends so that one section stalk drops to ground.
Described agricultural harvester also comprises receives stem cutting table auger 8, chain harrow assembly 9, cut flow roller 10, oscillating screen plate 13, distributes screw feeder 14 and fan 15.
Realize the tearing of maize straw, blend and the separating of skin, flesh, leaf that the rotating speed of axial-flow type drum d is very crucial, in the present embodiment, the rotating speed of described axial-flow type drum 11 is 950r/min.
Obtain good separating effect, according to the crop situation, the gap that regulates between axial-flow type drum and the sieve is very important, the fourth gear gap is arranged for this reason, be 5mm, 10mm, 15mm, 20mm, when crop is moist, use little gap between axial-flow type drum and the sieve, when crop is dry, use large gap between cylinder and the sieve.
Operation process is: be grown in the maize straw in the farmland, behind corn maturity period harvesting corn, stalk is cut off by the receipts stem ceding of Taiwan 1 of agricultural harvester and enters into defeated stem device 2 by the receipts stem cutting table auger 8 in the ceding of Taiwan, stalk is delivered to cut flow roller 10 by the chain harrow assembly 9 in the defeated stem device 2 with the stalk that cuts off, stalk is thrown into maize straw skin flesh leaf separator 3 by cut flow roller 10, by the axial-flow type drum 11 of maize straw skin flesh leaf separator 3 and the effect of sieve 12 maize straw is torn, be divided into the stalk crust of strip, irregular block flesh and scutellate blade.Because the degree that maize straw is torn in being torn process is different, it is very wide that the stalk crust of strip has, and forms the straw skin of corn strip; What have is then very thin, forms the maize straw skin silk.And in the maize straw skin silk, what have is combined with skin graft, and what have is not combined with skin graft; In conjunction with the skin silk at least in stalk tubercle part in conjunction with forming tow or being incorporated into the straw skin silk of the partial continuous on the skin, what be not combined with skin graft then forms the filament shape skin silk that one by one disengaging its length in skin outside is not more than the knot length of maize straw.The slight crack of the continuous straw skin silk of the slight crack of high-visible formation straw skin silk or forming section on the skin graft.Simultaneously, because the degree that is torn is different, the flesh on the maize straw skin partly is stripped from formation and is broken away from free flesh in skin graft, and part be not stripped from formation be attached on the skin graft in conjunction with flesh.Irregular block flesh and scutellate blade fall by the hole that the maize straw flesh that Gong separates and leaf pass through is set on the sieve 12, by distributing screw feeder 14 that it is delivered to the shake sieve plate 13 at harvester rear, flesh and blade act on the discharge of agricultural harvester rear by the shake of fan 15 and shake sieve plate 13, the stalk crust of strip is broken up rear discharge by straw skin dispersal device 6, fulfils assignment.
With stalk crust airing in the farmland of irregular block flesh, scutellate blade and strip, in the airing process, irregular block flesh partly becomes graininess, and scutellate blade also part becomes chip; When sampling detection moisture is 15% the stalk crust of strip is collected bundling.
A kind of fibrous raw material, wherein, described fibrous raw material is maize straw skin; Described maize straw skin comprises straw skin and the straw skin silk of strip; Remaining on the straw skin of described strip have a flesh; The remaining quantity of described flesh on the straw skin of strip is 2.5%.
The content of the straw skin of described strip is 55wt%, and the content of described straw skin silk is 50wt%.
Above-mentioned fibrous raw material adopts following process route to obtain:
With the maize straw of corn maturity period results through agricultural harvester of the present invention (as depicted in figs. 1 and 2) gather in, after skin flesh leaf separates, it is air-dry in the fields that bundling obtains when being 45% to moisture.
The employed agricultural harvester of present embodiment has further been set up straw skin dispersal device 6 and anti-block apparatus 7 on the basis of embodiment 1, referring to Fig. 3, its operation process is with embodiment 1.
Described straw skin dispersal device 6 is fixedly connected on the discharging opening of axial-flow type drum 11.Stalk crust by maize straw skin flesh leaf separator 3 isolated strips can present irregular arranging when being discharged on the ground, may be subject to rolling of rear wheel for harvester, because straw skin is hard and the fiber connectivity is good, phenomenon in heaps may occur simultaneously, be not easy to airing.So install straw skin dispersal device 6 additional, this device, is broken up straw skin and is had the guiding of device case that straw skin is broken up the ground of harvester one side uniformly by make the blade rotation in it with the kind of drive by cylinder, and is convenient to airing and bundling.
Described anti-block apparatus 7 is located at the bottom of sieve 12.If the leaf of the maize straw of harvesting and flesh are moist, moisture is high, then stalk is after the irregular block flesh that produces under the effect of axial-flow type drum and sieve and scutellate blade are leaking down sieve, may adhere on the inwall of harvester, along with its continuous accumulation can make the sieve hole plug, cause the separating effect of stalk to weaken.So install this anti-block apparatus additional, by distributing screw feeder as main transmission, the mode by chain gear transmission drives anti-block apparatus, at anti-block apparatus constantly under the effect, the flesh that sticks on the inwall and leaf is entered smoothly distribute in the screw feeder, finishes detached job.
In the present embodiment, the rotating speed of described axial-flow type drum 11 is 1000r/min.
A kind of fibrous raw material, wherein, described fibrous raw material is maize straw skin; Described maize straw skin comprises straw skin and the straw skin silk of strip; Remaining on the straw skin of described strip have a flesh; The remaining quantity of described flesh on the straw skin of strip is 3%.
The content of the straw skin of described strip is 45wt%, and the content of described straw skin silk is 55wt%.
Above-mentioned fibre stalk raw material adopts following process route to obtain:
With the maize straw of corn maturity period results through agricultural harvester of the present invention (as depicted in figs. 1 and 2) gather in, after skin flesh leaf separates, it is air-dry in the fields that bundling obtains when being 30% to moisture.
Described agricultural harvester is with embodiment 1.
In the present embodiment, the rotating speed of described axial-flow type drum 11 is 980r/minmin.
A kind of fibrous raw material, wherein, described fibrous raw material is maize straw skin; Described maize straw skin comprises straw skin and the straw skin silk of strip; Remaining on the straw skin of described strip have a flesh; The remaining quantity of described flesh on the straw skin of strip is 10%.
The content of the straw skin of described strip is 38wt%, and the content of described straw skin silk is 62wt%.
Above-mentioned fibrous raw material adopts following process route to obtain:
With the maize straw of corn maturity period results through agricultural harvester of the present invention (as depicted in figs. 1 and 2) gather in, after skin flesh leaf separates, bundling obtained when airing to moisture was 20% in the fields.
Described agricultural harvester is with embodiment 2.
In the present embodiment, the rotating speed of described axial-flow type drum 11 is 960r/min.
Test example 1
Copy the paper contrast test
1, slurrying
Maize straw skin (being called for short contrast 2) employing caustic soda-anthraquinone method pulping way with the sarconeme shape structure of the maize straw skin (being called for short contrast 1) of the fibrous raw material of the embodiment of the invention 1 (being called for short test), " the maize straw skin flesh separates and pulp-making test " and " design of corn combine stalks rubbing baler for bank and emulation ", in the 15L revolving digester, carry out, heating-up time is since 25 ℃ of meters, 100 ℃ of little steam bleedings, alkali charge 16%(is with Na
2The O meter), liquor ratio 1:5,160 ℃ of maximum temperatures, heating-up time 90min, temperature retention time 60min, anthraquinone consumption 0.05%.
2, bleaching
This test adopts traditional CEH tri-stage bleaching mode that the corn stalk latex that above-mentioned raw materials obtains is bleached.---washing---alkali treatment (E)---washing---hypochlorite bleaching (H)---washing that technological process is: chlorination (C).Totally applied chlorine is 8%, and other technological parameters see Table 1.
Table 1, corn stalk latex bleaching process parameter
3, handsheet
The corn stalk latex that above-mentioned raw materials is obtained carries out the handsheet experiment with the automatic handsheet machine of PTI, quantitatively is 60g/m
2, quantitatively fluctuation is for ± 3.5%.
Measure whiteness, opacity, YI yellow index and pattern physical strength by the related standards method, measure and see Table 2.
Table 2, corn stalk skin bleached pulp performance test results
Compare with contrast 1, the prepared opacity of paper grade (stock) maize straw raw material of the present invention has certain decline, and the paper YI yellow index improves, but tensile index, burst index, tear index and folding strength are improved; Contrast 2 then since flesh do not remove, contain a large amount of fleshes in the raw material so that the tensile index of paper, burst index and tear index not as good as the present invention, may be because the effect of flesh self fragility, and the brightness reversion phenomenon is more serious.Therefore, the Papermaking Performance of paper grade (stock) maize straw raw material of the present invention be better than contrasting 1 and the contrast 2.
Paper grade (stock) maize straw raw material to the other embodiments of the invention gained has also carried out above-mentioned test, and the result of its acquisition is similar.
Test example 2
Fibrous raw material is stored up experiment
Adopt the fibrous raw material of experimental example 1 preparation of the present invention under identical condition, to store up comparative test with the paper grade (stock) maize straw raw material of prior art preparation:
Divide 3 batches (batch 1, batches 2 and batch 3) with the fibrous raw material of embodiment 1, the maize straw skin silk that the method for storing up of prior art obtains divides 2 batches (contrast 1 and contrasts 2), and the equal bundling of above-mentioned straw skin is become 330kg/m
3Bundle, then test:
1. hot conditions test
The above-mentioned stalk for preparing and is stored in the warehouse of clean, sealing, is 40 ℃ with the Temperature Setting in warehouse, and relative humidity is to place 15 days under 40 temperature, in sampling in the 5th day, the 10th day, the 15th day, detects the whether rotten of stalk sample.The results are shown in Table 3:
Table 3
2. super-humid conditions experiment
The above-mentioned stalk for preparing, with store in the warehouse of clean, sealing, be 25 ± 2 ℃ with the Temperature Setting in warehouse, placed 15 days under the condition of relative humidity 90 ± 5%, in sampling in the 5th day, the 10th day, the 15th day, detect the whether rotten of stalk sample.The results are shown in Table 4:
Table 4
3. hot and humid condition experiment
The above-mentioned stalk for preparing, with store in the warehouse of clean, sealing, be 35 ± 2 ℃ with the Temperature Setting in warehouse, placed 30 days under the condition of relative humidity 70 ± 5%, at duration of test respectively at sampling in 5,10,20,30 days once, detect the whether rotten of stalk sample.The results are shown in Table 5:
Table 5
Claims (10)
1. a fibrous raw material is characterized in that, described fibrous raw material is maize straw skin; Described maize straw skin comprises straw skin and the straw skin silk of strip; Remaining on the straw skin of described strip have a flesh; The remaining quantity of described flesh on the straw skin of strip is not higher than 5%, preferably is not higher than 3%, and more preferably 0.5～2.5%.
2. fibrous raw material according to claim 1 is characterized in that, the content of the straw skin of described strip is 33.3～50wt%, and the content of described straw skin silk is 50～66.7wt%.
3. fibrous raw material according to claim 1 and 2 is characterized in that, described straw skin silk comprises the straw skin silk of being combined with the straw skin of strip and the straw skin silk of not being combined with the straw skin of strip.
4. fibrous raw material according to claim 3 is characterized in that, described straw skin silk of being combined with the straw skin of strip is included in the straw skin silk of stalk tubercle part combination and at the straw skin silk of other position combination of stalk.
5. fibrous raw material according to claim 4 is characterized in that, described straw skin silk in the combination of stalk tubercle part is pencil; Described at the continuous straw skin silk of straw skin silk forming section on skin of other position combination of stalk.
6. fibrous raw material according to claim 5 is characterized in that, on the described skin along the slight crack that the straw skin silk that forms partial continuous is arranged on the stalk longitudinal direction.
7. fibrous raw material according to claim 3 is characterized in that, described straw skin silk of not being combined with the straw skin of strip is thread.
8. fibrous raw material according to claim 7 is characterized in that, the length of the straw skin of described strip is not more than 45cm.
9. the described fibrous raw material of any one is characterized in that according to claim 1-8, and the moisture of described maize straw skin is 15～45%.
10. the application of the described fibrous raw material of claim 1-9 any one aspect papermaking.
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