CN104872082A - Nano-zinc oxide feeding silkworm rearing method for manufacturing high-performance silk and product thereof - Google Patents
Nano-zinc oxide feeding silkworm rearing method for manufacturing high-performance silk and product thereof Download PDFInfo
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- CN104872082A CN104872082A CN201510214727.4A CN201510214727A CN104872082A CN 104872082 A CN104872082 A CN 104872082A CN 201510214727 A CN201510214727 A CN 201510214727A CN 104872082 A CN104872082 A CN 104872082A
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- silkworm
- zine oxide
- nano zine
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- 241000255789 Bombyx mori Species 0.000 title claims abstract description 148
- 238000000034 method Methods 0.000 title claims abstract description 56
- XLOMVQKBTHCTTD-UHFFFAOYSA-N zinc oxide Inorganic materials [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 title abstract description 18
- 239000011787 zinc oxide Substances 0.000 title abstract description 12
- 238000004519 manufacturing process Methods 0.000 title abstract description 4
- 230000000384 rearing effect Effects 0.000 title abstract description 4
- 235000013305 food Nutrition 0.000 claims description 33
- 239000000243 solution Substances 0.000 claims description 29
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 25
- 229910052725 zinc Inorganic materials 0.000 claims description 25
- 239000011701 zinc Substances 0.000 claims description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- 239000010902 straw Substances 0.000 claims description 16
- 239000002105 nanoparticle Substances 0.000 claims description 11
- 230000008569 process Effects 0.000 claims description 11
- 238000009987 spinning Methods 0.000 claims description 10
- 238000001816 cooling Methods 0.000 claims description 9
- 230000005764 inhibitory process Effects 0.000 claims description 9
- 239000007864 aqueous solution Substances 0.000 claims description 8
- 239000008367 deionised water Substances 0.000 claims description 8
- 239000006185 dispersion Substances 0.000 claims description 8
- 238000009281 ultraviolet germicidal irradiation Methods 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 7
- 238000009954 braiding Methods 0.000 claims description 6
- 238000009941 weaving Methods 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 3
- 238000004904 shortening Methods 0.000 claims description 2
- 230000006750 UV protection Effects 0.000 abstract description 2
- 210000004907 gland Anatomy 0.000 abstract description 2
- 230000001954 sterilising effect Effects 0.000 abstract 1
- 238000004659 sterilization and disinfection Methods 0.000 abstract 1
- 108010022355 Fibroins Proteins 0.000 description 12
- 239000000835 fiber Substances 0.000 description 10
- 239000002245 particle Substances 0.000 description 9
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 6
- 230000000844 anti-bacterial effect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 238000002474 experimental method Methods 0.000 description 5
- 108090000623 proteins and genes Proteins 0.000 description 5
- 102000004169 proteins and genes Human genes 0.000 description 5
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 229910044991 metal oxide Inorganic materials 0.000 description 3
- 150000004706 metal oxides Chemical class 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical class [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000000376 reactant Substances 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 239000004408 titanium dioxide Substances 0.000 description 2
- 241000239290 Araneae Species 0.000 description 1
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 1
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920001872 Spider silk Polymers 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000003115 biocidal effect Effects 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- IDGUHHHQCWSQLU-UHFFFAOYSA-N ethanol;hydrate Chemical compound O.CCO IDGUHHHQCWSQLU-UHFFFAOYSA-N 0.000 description 1
- 230000037406 food intake Effects 0.000 description 1
- 235000012631 food intake Nutrition 0.000 description 1
- 239000004459 forage Substances 0.000 description 1
- 239000003574 free electron Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910021389 graphene Inorganic materials 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000004224 protection Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- -1 sense of touch Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
- 229940070524 zinc protein complex Drugs 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K67/00—Rearing or breeding animals, not otherwise provided for; New or modified breeds of animals
- A01K67/033—Rearing or breeding invertebrates; New breeds of invertebrates
- A01K67/04—Silkworms
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01B—MECHANICAL TREATMENT OF NATURAL FIBROUS OR FILAMENTARY MATERIAL TO OBTAIN FIBRES OF FILAMENTS, e.g. FOR SPINNING
- D01B7/00—Obtaining silk fibres or filaments
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
- D04B1/14—Other fabrics or articles characterised primarily by the use of particular thread materials
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B21/00—Warp knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04C—BRAIDING OR MANUFACTURE OF LACE, INCLUDING BOBBIN-NET OR CARBONISED LACE; BRAIDING MACHINES; BRAID; LACE
- D04C1/00—Braid or lace, e.g. pillow-lace; Processes for the manufacture thereof
- D04C1/02—Braid or lace, e.g. pillow-lace; Processes for the manufacture thereof made from particular materials
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Animal Behavior & Ethology (AREA)
- Zoology (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Mechanical Engineering (AREA)
- Fodder In General (AREA)
- Feed For Specific Animals (AREA)
Abstract
The invention relates to a nano-zinc oxide feeding silkworm rearing method for manufacturing high-performance silk and a product thereof. The nano-zinc oxide feeding silkworm rearing method includes steps of adding nano-zinc oxide into artificial feed of silkworms, feeding nano-zinc oxide into silk gland of silkworms by an absorbing and converting function of the silkworms and cocooning to obtain high-performance silk containing nano-zinc oxide. On the premise of not damaging natural quality of the silk, the silk is modified and has better mechanical performance and better sterilization and ultraviolet resistance property.
Description
Technical field
The invention belongs to silk fiber and modification field thereof, relate to a kind of nano zine oxide preparing high-performance silk and freshen food and educate silkworm method and goods thereof.
Background technology
By the oozy spinning solution be made up of protein of sericterium when matured silkworm cocoons, the continuous fiber solidifying formation is in atmosphere called silk.As a kind of biological fiber, silk not only has good glossiness and comfortable sense of touch, also has stronger mechanical property and good biocompatibility, is all widely used at weaving, medical science, cosmetics and biological field.
The fracture strength of boiled silk is about 400MPa, and elongation at break and energy to failure are 15% and about 30J/g, needs in actual applications to be improved further.Silk itself has certain uvioresistant and antibacterial ability, but not remarkable, as undressed natural silk does not show obvious inhibition zone in testing.Therefore in order to improve the performance of silk and widen its application, need to carry out modification to silk.
There is research by strengthening the performance of silk in the method for silk surface coated particle.Such as publication number is that the Chinese patent of CN103572585A discloses a kind of titania modified silk and preparation method thereof.In patent, inventor take titanate esters as reactant, makes solvent with benzinum, and the hydrated titanium dioxide of original position room temperature synthesis of densified, is covered in silk surface.Although can reach 22% by the elongation at break of the silk of the method modification, energy to failure is 22 ~ 74J/g, and intensity is 300 ~ 680MPa, and its uvioresistant and antibacterial ability are all significantly improved simultaneously.But the method for this modified natural silk needs with an organic solvent, produce if quantize and need more input in solvent recovery process.Moreover, titanium dioxide is covered in the one's best quality such as color and luster, sense of touch, gas permeability that silk itself can be damaged in silk surface.
Other some researchs then use the nano particle adding metal oxide in silk fibroin solution to be spun into the method for fiber more by artificial means to improve the performance of silk.Such as publication number is that the Chinese patent of CN102912470A discloses regenerated silk fiber of a kind of metal oxide nanoparticles activeness and quietness and preparation method thereof.In this invention, researcher makes regenerated silk fibroin solution after being come unstuck by natural silk, regulates its calcium ion concentration to 0.15 ~ 0.3mol/L, then with a certain proportion of metal oxide (TiO
2, Fe
3o
4, ZnO, Al
2o
3or ZrO
2) hydrosol mixing, concentrated, be at room temperature dry spun into silk, finally carry out post processing with ethanol-water mixture, the regenerated silk fiber elongation at break obtained is 50% ~ 150%, and energy to failure is 30 ~ 100J/g, and fracture strength is 50 ~ 250MPa.Publication number is that the Chinese patent of CN103572395A discloses a kind of activeness and quietness regenerated silk fiber and preparation method thereof.Researcher is on the basis of CN102912470A at aforementioned publication number, adds graphene oxide solution again, make the obtained regenerated fibroin fiber that uses the same method in regenerated silk fibroin solution.The regenerated silk fiber elongation at break that the method obtains is 20% ~ 150%, and energy to failure is 30 ~ 100J/g, and fracture strength is 70 ~ 380MPa.The toughness of these two kinds of methods to silk all improves a lot, but but fails to keep its fracture strength a good level, do not mention in patent yet silk can be made to obtain other are functional.And complicated by the process operation of regenerated silk fibroin solution-polymerized SBR, condition is harsh, the cycle is long, yield poorly, industrialized possibility is very little.
Also there is researcher in feed of mulberry silkworm, add some functional particles, thus obtain the silk with some specific function.Publication number is that the Chinese patent of CN1395861A discloses a kind of silkworm feed containing functional particle and the silk produced with this feed feeding and the goods using this silk, in this patent, the functional particle such as mineral, pigment is added feeding silkworm in silkworm feed by inventor, spins function silk by the effect of silkworm sorption enhanced.Publication number be the Chinese patent of CN1608489 disclose a kind of silkworm feed and feed raise the silk that this feed is produced and the squeeze using this.This patent is then water-soluble for the functional particles such as the zeolite of ormal weight, noctilucence stone or other solvents are added feeding silkworm in silkworm feed again obtain silk.These two patents need functional particle used to carry out screening and processing freshening in food process, and because diameter of particle is comparatively large, the feed being easy to affect silkworm grows, and causes silk quality and production declining.Its result shows again, and functional particle is more to be present in silk gum, and silk in use, and mostly need to come unstuck, so its modified effect is just very little.And the two does not all provide the Mechanical Characteristics of gained silk, only represent that gained silk has the function of the particulate that some add, can range of application narrow.
Summary of the invention
The object of this invention is to provide a kind of nano zine oxide preparing high-performance silk to freshen food and educate silkworm method and goods thereof, better for fields such as organization bracket engineering, weaving and medical science.In the present invention, nano zine oxide is blended in feeding silkworm in silkworm feed, by the absorption of silkworm self, makes nano zine oxide be mixed into silk, to improve the mechanical property of silk and antibacterial and uvioresistant ability.The high-performance silk that this method obtains, the Zn-ef ficiency in nano zine oxide occurs interact and form boundary layer by hydrogen bond, chelating mode and fibroin albumen, and degumed silk can keep good modified effect.This method, while the mechanical property improving silk, can also improve its antibacterial and uvioresistant ability, and can not damage other fine quality of silk.Whole process environmental protection, simple and easy to do, can implement in normal silkworm rearing process, can suitability for industrialized production be realized.
A kind of nano zine oxide preparing high-performance silk of the present invention freshens food and educates silkworm method, in silkworm artificial feed and silkworm feed, add nano zine oxide and feed silkworm, absorb nano zine oxide by silkworm and enter sericterium and final combination by nano zine oxide in spinning process enters silk, namely obtain high-performance silk;
Be specially: silkworm an age to four age feeding do not add the silkworm feed of nano zine oxide, start feeding five second day ages and with the addition of the mixed feed that mass percent is 0.5 ~ 2% nano zine oxide, cocoon until be placed on small straw bundles to spin cocoons.Silkworm five the length of times body of gland proportion anxious to increase, five age forage protein be increased to 96% in the retention ratio of its sericterium gradually by 9%, the synthesis of its silk-fibroin is mainly carried out in five length of times as seen.Therefore select to add food nano zine oxide five length of times and can obtain the highest raw material availability and optimum efficiency.
There is research by multiple-pulse vapor infiltration method, the elements such as titanium, aluminium, zinc to be penetrated in the natural spider's thread, be connected with covalent bond or coordinate bond with protein molecule after reactant enters, form metal-protein complex compound.Protein molecule in spider silk unformed area is connected by metal, and therefore its mechanical property improves greatly.The present invention then educates silkworm method and is added in silk by freshening food by nano zine oxide, and Zn-ef ficiency is connected with covalent bond or coordinate bond with silk fibroin molecular, forms zinc-protein complex, improves the mechanical property of silk; Meanwhile, because Zn-ef ficiency and silk fibroin molecular can form coordinate bond and hydrogen bond, hinder random conformation and alpha helical conformation to the transformation of β-pleated sheet conformation, cause the degree of crystallinity of silk to reduce; Therefore, consider, if the addition of nano zine oxide is too high, the nanoparticle concentration entering sericterium is too high, be then unfavorable for silk-fibroin crystallization; And too much additive will inevitably affect the normal growth of silkworm, therefore the addition of nano zine oxide required for the present invention is lower, mass percent is only 0.5 ~ 2%, experiment show this addition do not affect silkworm normal food-intake, eating speed, grow and cocoon.
As preferred technical scheme:
The nano zine oxide preparing high-performance silk as above freshens food and educates a silkworm method, and described mixed feed refers to and in silkworm feed, is evenly mixed into a certain amount of nano zine oxide and the feed heating shortening; The concrete preparation process of described mixed feed comprises the following steps:
(1) nano zine oxide is soluble in water, make nano oxidized zinc solution;
(2) nano oxidized zinc solution and silkworm feed are stirred, then heat, after cooling, namely make mixed feed;
Wherein, the quality of water is 2 ~ 3 times of silkworm feed.
The nano zine oxide preparing high-performance silk as above freshens food and educates a silkworm method, and described nano oxidized zinc solution is before mixing with silkworm feed, and first ultrasonic 15 ~ 30min, makes nanoparticle dispersion even.
The nano zine oxide preparing high-performance silk as above freshens food and educates a silkworm method, and described heating refers to puts into micro-wave oven heating 3 ~ 6min, and the power output of micro-wave oven is 800 ~ 1000W.
The nano zine oxide preparing high-performance silk as above freshens food and educates a silkworm method, and the size range of described nano zine oxide is 40 ~ 200nm.
The present invention's zinc oxide used is small-sized, and has water-soluble preferably, is scattered in water, then mixes with feed through ultrasonic Absorbable organic halogens afterwards.Mixed feed is through heating using microwave, and cooling forming, can keep suitable humidity, is beneficial to silkworm feed.After zinc oxide is taken in body by silkworm, very fast diffusion enters each organ of its health, comprises sericterium, and zinc oxide is and combined with protein, finally in the spinning process of silkworm, enters silk.Due to the sorption enhanced effect of silkworm self, zinc oxide can with fibroin stable bond, and be uniformly distributed in silk, effectively improve the performance of silk.
The nano zine oxide preparing high-performance silk as above freshens food and educates a silkworm method, cocoons period from second day five age to being placed on small straw bundles to spin cocoons with a collection of silkworm, and in described mixed feed, the food concentration of adding of nano zine oxide remains unchanged.
The nano zine oxide preparing high-performance silk adds the high-performance silk eaten and educate silkworm method and obtain, and the fracture strength of described high-performance silk monofilament after removing silk gum is 390 ~ 500MPa, and elongation at break is 15 ~ 20%, and energy to failure is 30 ~ 70J/g.Described high-performance silk remove after silk gum through light intensity be 1245 μ W/cm
2and wavelength is that after the UV-irradiation 3h of 390nm, fracture strength, without significantly sacrificing, is greater than 10mm to colibacillary inhibition zone.
The scatters ultraviolet ability that nano zine oxide tool is certain, its particle diameter is less than ultraviolet wavelength, thus has stronger absorption UV resistance.Nano zine oxide is under the irradiation of sunlight especially at ultraviolet light, and can decomposite free electron, leave the hole of positively charged, hole can become active oxygen by excited oxygen, and oxidable multiple-microorganism, plays bactericidal action.Therefore the silk antibiotic property and the uvioresistant performance that combine nano zine oxide all improve a lot.
High-performance silk as above, described in remove silk gum detailed process comprise the following steps:
(1) silk cocoon is cut off the inner silkworm chrysalis of removing;
(2) silk cocoon is placed in the Na that mass percent is 0.5 ~ 1%
2cO
3in the aqueous solution, boil 20 ~ 30min, then use washed with de-ionized water;
(3) repeat (2) step 2 ~ 3 times, the silk come unstuck is hung on Indoor Natural air-dry.
Silk gum is little for the Effect on Mechanical Properties of silk fiber, in actual applications, mostly need to remove silk gum, therefore the present invention adopts the mechanical property of degumed silk to show modified effect, proves the interaction of zinc oxide and fibroin albumen in the present invention simultaneously and is effectively combined.
A kind of silk product, by high-performance silk through braiding or be formed by weaving.
Beneficial effect:
Nano zine oxide of the present invention adds food and educates the method for modifying of silkworm method relative to prior art, eliminates expensive equipment support and complicated technological means, not only simple and easy to do, cost-saving, and is easy to control, Be very effective.
High-performance silk of the present invention, has and has better mechanical property than natural silk, also has antibacterial and uvioresistant ability preferably simultaneously.
Embodiment
Below in conjunction with embodiment, set forth the present invention further.Should be understood that these embodiments are only not used in for illustration of the present invention to limit the scope of the invention.In addition should be understood that those skilled in the art can make various changes or modifications the present invention, and these equivalent form of values fall within the application's appended claims limited range equally after the content of having read the present invention's instruction.
The silkworm feed used in the present invention, in dry powdered, its main component and configuration proportion scope list in table 1.
The composition with silkworm feed tested by table 1
Embodiment 1
The nano zine oxide preparing high-performance silk freshens food and educates a silkworm method, first prepares mixed feed, is specially:
(1) be that the nano zine oxide of 40 ~ 200nm is soluble in water by size range, make nano oxidized zinc solution;
(2) first by ultrasonic for nano oxidized zinc solution 15min, make nanoparticle dispersion even, nano oxidized zinc solution and silkworm feed are stirred, then put into micro-wave oven and heat 3min, the power output of micro-wave oven is 800W, namely makes mixed feed after cooling; Wherein, the quality of water is 2 times of silkworm feed;
Then in silkworm artificial feed and silkworm feed, add nano zine oxide and feed silkworm, absorbing nano zine oxide by silkworm and enter sericterium and final combination by nano zine oxide in spinning process enters silk, namely obtain high-performance silk;
Be specially: silkworm an age to four age feeding do not add the silkworm feed of nano zine oxide, start feeding five second day ages and with the addition of the mixed feed that mass percent is 0.5% nano zine oxide, cocoon until be placed on small straw bundles to spin cocoons, cocoon period from second day five age to being placed on small straw bundles to spin cocoons with a collection of silkworm, in mixed feed, the food concentration of adding of nano zine oxide remains unchanged.
The nano zine oxide preparing high-performance silk adds the high-performance silk eaten and educate silkworm method and obtain, and carried out removing silk gum by high-performance silk, the detailed process removing silk gum comprises the following steps:
(1) silk cocoon is cut off the inner silkworm chrysalis of removing;
(2) silk cocoon is placed in the Na that mass percent is 0.5%
2cO
3in the aqueous solution, boil 20min, then use washed with de-ionized water;
(3) repeat (2) step 2 times, the silk come unstuck is hung on Indoor Natural air-dry.The fracture strength of high-performance silk monofilament after removing silk gum is 390MPa, and elongation at break is 15%, and energy to failure is 30J/g.High-performance silk remove after silk gum through light intensity be 1245 μ W/cm
2and wavelength is that after the UV-irradiation 3h of 390nm, fracture strength, without significantly sacrificing, is greater than 10mm to colibacillary inhibition zone.
Silk product is formed through braiding by high-performance silk.
Experiment is composed as follows with silkworm feed:
Embodiment 2
The nano zine oxide preparing high-performance silk freshens food and educates a silkworm method, first prepares mixed feed, is specially:
(1) be that the nano zine oxide of 40 ~ 200nm is soluble in water by size range, make nano oxidized zinc solution;
(2) first by ultrasonic for nano oxidized zinc solution 30min, make nanoparticle dispersion even, nano oxidized zinc solution and silkworm feed are stirred, then puts into micro-wave oven and heat 6min, the power output of micro-wave oven is 1000W, namely makes mixed feed after cooling; Wherein, the quality of water is 3 times of silkworm feed;
Then in silkworm artificial feed and silkworm feed, add nano zine oxide and feed silkworm, absorbing nano zine oxide by silkworm and enter sericterium and final combination by nano zine oxide in spinning process enters silk, namely obtain high-performance silk;
Be specially: silkworm an age to four age feeding do not add the silkworm feed of nano zine oxide, start feeding five second day ages and with the addition of the mixed feed that mass percent is 2% nano zine oxide, cocoon until be placed on small straw bundles to spin cocoons, cocoon period from second day five age to being placed on small straw bundles to spin cocoons with a collection of silkworm, in described mixed feed, the food concentration of adding of nano zine oxide remains unchanged.
The nano zine oxide preparing high-performance silk adds the high-performance silk eaten and educate silkworm method and obtain, and carried out removing silk gum by high-performance silk, the detailed process removing silk gum comprises the following steps:
(1) silk cocoon is cut off the inner silkworm chrysalis of removing;
(2) silk cocoon is placed in the Na that mass percent is 1%
2cO
3in the aqueous solution, boil 20min, then use washed with de-ionized water;
(3) repeat (2) step 3 times, the silk come unstuck is hung on Indoor Natural air-dry.The fracture strength of high-performance silk monofilament after removing silk gum is 500MPa, and elongation at break is 20%, and energy to failure is 70J/g.High-performance silk remove after silk gum through light intensity be 1245 μ W/cm
2and wavelength is that after the UV-irradiation 3h of 390nm, fracture strength, without significantly sacrificing, is greater than 10mm to colibacillary inhibition zone.
By the silk product of high-performance silk through being formed by weaving.
Experiment is composed as follows with silkworm feed:
Embodiment 3
The nano zine oxide preparing high-performance silk freshens food and educates a silkworm method, first prepares mixed feed, is specially:
(1) be that the nano zine oxide of 40 ~ 200nm is soluble in water by size range, make nano oxidized zinc solution;
(2) first by ultrasonic for nano oxidized zinc solution 20min, make nanoparticle dispersion even, nano oxidized zinc solution and silkworm feed are stirred, then put into micro-wave oven and heat 4min, the power output of micro-wave oven is 900W, namely makes mixed feed after cooling; Wherein, the quality of water is 2.5 times of silkworm feed;
Then in silkworm artificial feed and silkworm feed, add nano zine oxide and feed silkworm, absorbing nano zine oxide by silkworm and enter sericterium and final combination by nano zine oxide in spinning process enters silk, namely obtain high-performance silk;
Be specially: silkworm an age to four age feeding do not add the silkworm feed of nano zine oxide, start feeding five second day ages and with the addition of the mixed feed that mass percent is 1.5% nano zine oxide, cocoon until be placed on small straw bundles to spin cocoons, cocoon period from second day five age to being placed on small straw bundles to spin cocoons with a collection of silkworm, in described mixed feed, the food concentration of adding of nano zine oxide remains unchanged.
The nano zine oxide preparing high-performance silk adds the high-performance silk eaten and educate silkworm method and obtain, and carried out removing silk gum by high-performance silk, the detailed process removing silk gum comprises the following steps:
(1) silk cocoon is cut off the inner silkworm chrysalis of removing;
(2) silk cocoon is placed in the Na that mass percent is 0.6%
2cO
3in the aqueous solution, boil 25min, then use washed with de-ionized water;
(3) repeat (2) step 3 times, the silk come unstuck is hung on Indoor Natural air-dry.The fracture strength of high-performance silk monofilament after removing silk gum is 490MPa, and elongation at break is 18%, and energy to failure is 60J/g.High-performance silk remove after silk gum through light intensity be 1245 μ W/cm
2and wavelength is that after the UV-irradiation 3h of 390nm, fracture strength, without significantly sacrificing, is greater than 10mm to colibacillary inhibition zone.
Silk product is formed through braiding by high-performance silk.
Experiment is composed as follows with silkworm feed:
Embodiment 4
The nano zine oxide preparing high-performance silk freshens food and educates a silkworm method, first prepares mixed feed, is specially:
(1) be that the nano zine oxide of 40 ~ 200nm is soluble in water by size range, make nano oxidized zinc solution;
(2) first by ultrasonic for nano oxidized zinc solution 18min, make nanoparticle dispersion even, nano oxidized zinc solution and silkworm feed are stirred, then put into micro-wave oven and heat 5min, the power output of micro-wave oven is 900W, namely makes mixed feed after cooling; Wherein, the quality of water is 2 times of silkworm feed;
Then in silkworm artificial feed and silkworm feed, add nano zine oxide and feed silkworm, absorbing nano zine oxide by silkworm and enter sericterium and final combination by nano zine oxide in spinning process enters silk, namely obtain high-performance silk;
Be specially: silkworm an age to four age feeding do not add the silkworm feed of nano zine oxide, start feeding five second day ages and with the addition of the mixed feed that mass percent is 0.8% nano zine oxide, cocoon until be placed on small straw bundles to spin cocoons, cocoon period from second day five age to being placed on small straw bundles to spin cocoons with a collection of silkworm, in described mixed feed, the food concentration of adding of nano zine oxide remains unchanged.
The nano zine oxide preparing high-performance silk adds the high-performance silk eaten and educate silkworm method and obtain, and carried out removing silk gum by high-performance silk, the detailed process removing silk gum comprises the following steps:
(1) silk cocoon is cut off the inner silkworm chrysalis of removing;
(2) silk cocoon is placed in the Na that mass percent is 0.8%
2cO
3in the aqueous solution, boil 22min, then use washed with de-ionized water;
(3) repeat (2) step 3 times, the silk come unstuck is hung on Indoor Natural air-dry.The fracture strength of high-performance silk monofilament after removing silk gum is 400MPa, and elongation at break is 16%, and energy to failure is 37J/g.High-performance silk remove after silk gum through light intensity be 1245 μ W/cm
2and wavelength is that after the UV-irradiation 3h of 390nm, fracture strength, without significantly sacrificing, is greater than 10mm to colibacillary inhibition zone.
Silk product is formed through braiding by high-performance silk.
Experiment is composed as follows with silkworm feed:
Embodiment 5
The nano zine oxide preparing high-performance silk freshens food and educates a silkworm method, first prepares mixed feed, is specially:
(1) be that the nano zine oxide of 40 ~ 200nm is soluble in water by size range, make nano oxidized zinc solution;
(2) first by ultrasonic for nano oxidized zinc solution 20min, make nanoparticle dispersion even, nano oxidized zinc solution and silkworm feed are stirred, then put into micro-wave oven and heat 5min, the power output of micro-wave oven is 900W, namely makes mixed feed after cooling; Wherein, the quality of water is 2 times of silkworm feed;
Then in silkworm artificial feed and silkworm feed, add nano zine oxide and feed silkworm, absorbing nano zine oxide by silkworm and enter sericterium and final combination by nano zine oxide in spinning process enters silk, namely obtain high-performance silk;
Be specially: silkworm an age to four age feeding do not add the silkworm feed of nano zine oxide, start feeding five second day ages and with the addition of the mixed feed that mass percent is 0.9% nano zine oxide, cocoon until be placed on small straw bundles to spin cocoons, cocoon period from second day five age to being placed on small straw bundles to spin cocoons with a collection of silkworm, in described mixed feed, the food concentration of adding of nano zine oxide remains unchanged.
The nano zine oxide preparing high-performance silk adds the high-performance silk eaten and educate silkworm method and obtain, and carried out removing silk gum by high-performance silk, the detailed process removing silk gum comprises the following steps:
(1) silk cocoon is cut off the inner silkworm chrysalis of removing;
(2) silk cocoon is placed in the Na that mass percent is 0.6%
2cO
3in the aqueous solution, boil 21min, then use washed with de-ionized water;
(3) repeat (2) step 2 times, the silk come unstuck is hung on Indoor Natural air-dry.The fracture strength of high-performance silk monofilament after removing silk gum is 420MPa, and elongation at break is 18%, and energy to failure is 43J/g.High-performance silk remove after silk gum through light intensity be 1245 μ W/cm
2and wavelength is that after the UV-irradiation 3h of 390nm, fracture strength, without significantly sacrificing, is greater than 10mm to colibacillary inhibition zone.
By high-performance silk through being formed by weaving silk product.
Embodiment 6
The nano zine oxide preparing high-performance silk freshens food and educates a silkworm method, first prepares mixed feed, is specially:
(1) be that the nano zine oxide of 40 ~ 200nm is soluble in water by size range, make nano oxidized zinc solution;
(2) first by ultrasonic for nano oxidized zinc solution 25min, make nanoparticle dispersion even, nano oxidized zinc solution and silkworm feed are stirred, then put into micro-wave oven and heat 4min, the power output of micro-wave oven is 900W, namely makes mixed feed after cooling; Wherein, the quality of water is 2 times of silkworm feed;
Then in silkworm artificial feed and silkworm feed, add nano zine oxide and feed silkworm, absorbing nano zine oxide by silkworm and enter sericterium and final combination by nano zine oxide in spinning process enters silk, namely obtain high-performance silk;
Be specially: silkworm an age to four age feeding do not add the silkworm feed of nano zine oxide, start feeding five second day ages and with the addition of the mixed feed that mass percent is 1% nano zine oxide, cocoon until be placed on small straw bundles to spin cocoons, cocoon period from second day five age to being placed on small straw bundles to spin cocoons with a collection of silkworm, in described mixed feed, the food concentration of adding of nano zine oxide remains unchanged.
The nano zine oxide preparing high-performance silk adds the high-performance silk eaten and educate silkworm method and obtain, and carried out removing silk gum by high-performance silk, the detailed process removing silk gum comprises the following steps:
(1) silk cocoon is cut off the inner silkworm chrysalis of removing;
(2) silk cocoon is placed in the Na that mass percent is 0.5%
2cO
3in the aqueous solution, boil 30min, then use washed with de-ionized water;
(3) repeat (2) step 3 times, the silk come unstuck is hung on Indoor Natural air-dry.The fracture strength of high-performance silk monofilament after removing silk gum is 450MPa, and elongation at break is 18%, and energy to failure is 55J/g.High-performance silk remove after silk gum through light intensity be 1245 μ W/cm
2and wavelength is that after the UV-irradiation 3h of 390nm, fracture strength, without significantly sacrificing, is greater than 10mm to colibacillary inhibition zone.
Silk product is formed through braiding by high-performance silk.
Claims (9)
1. the nano zine oxide preparing high-performance silk freshens food and educates silkworm method, it is characterized in that: in silkworm artificial feed and silkworm feed, add nano zine oxide and feed silkworm, absorb nano zine oxide by silkworm and enter sericterium and final combination by nano zine oxide in spinning process enters silk, namely obtain high-performance silk;
Be specially: silkworm an age to four age feeding do not add the silkworm feed of nano zine oxide, start feeding five second day ages and with the addition of the mixed feed that mass percent is 0.5 ~ 2% nano zine oxide, cocoon until be placed on small straw bundles to spin cocoons.
2. a kind of nano zine oxide preparing high-performance silk according to claim 1 freshens food and educates silkworm method, it is characterized in that, described mixed feed refers to and in silkworm feed, is evenly mixed into a certain amount of nano zine oxide and the feed heating shortening; The concrete preparation process of described mixed feed comprises the following steps:
(1) nano zine oxide is soluble in water, make nano oxidized zinc solution;
(2) nano oxidized zinc solution and silkworm feed are stirred, then heat, after cooling, namely make mixed feed;
Wherein, the quality of water is 2 ~ 3 times of silkworm feed.
3. a kind of nano zine oxide preparing high-performance silk according to claim 1 freshens food and educates silkworm method, it is characterized in that, described nano oxidized zinc solution is before mixing with silkworm feed, and first ultrasonic 15 ~ 30min, makes nanoparticle dispersion even.
4. a kind of nano zine oxide preparing high-performance silk according to claim 1 freshens food and educates silkworm method, it is characterized in that, described heating refers to puts into micro-wave oven heating 3 ~ 6min, and the power output of micro-wave oven is 800 ~ 1000W.
5. a kind of nano zine oxide preparing high-performance silk according to claim 1 freshens food and educates silkworm method, and it is characterized in that, the size range of described nano zine oxide is 40 ~ 200nm.
6. a kind of nano zine oxide preparing high-performance silk according to claim 1 freshens food and educates silkworm method, it is characterized in that, cocoons period from second day five age to being placed on small straw bundles to spin cocoons with a collection of silkworm, and in described mixed feed, the food concentration of adding of nano zine oxide remains unchanged.
7. a kind of nano zine oxide preparing high-performance silk adds the high-performance silk eaten and educate silkworm method and obtain as claimed in claim 1, it is characterized in that: the fracture strength of described high-performance silk monofilament after removing silk gum is 390 ~ 500MPa, elongation at break is 15 ~ 20%, and energy to failure is 30 ~ 70J/g; Described high-performance silk remove after silk gum through light intensity be 1245 μ W/cm
2and wavelength is that after the UV-irradiation 3h of 390nm, fracture strength, without significantly sacrificing, is greater than 10mm to colibacillary inhibition zone.
8. high-performance silk according to claim 7, is characterized in that, described in remove silk gum detailed process comprise the following steps:
(1) silk cocoon is cut off the inner silkworm chrysalis of removing;
(2) silk cocoon is placed in the Na that mass percent is 0.5 ~ 1%
2cO
3in the aqueous solution, boil 20 ~ 30min, then use washed with de-ionized water;
(3) repeat (2) step 2 ~ 3 times, the silk come unstuck is hung on Indoor Natural air-dry.
9. a silk product, is characterized in that: by high-performance silk through braiding or be formed by weaving.
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| CN109122600A (en) * | 2018-07-13 | 2019-01-04 | 西安交通大学 | A kind of prepare freshens food from the nano tungsten trioxide of heat production silk and educates silkworm method and its product |
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| CN111280133A (en) * | 2020-02-27 | 2020-06-16 | 浙江理工大学 | Method for producing anti-ultraviolet functional silk by adding organic ultraviolet absorbent |
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| CN114164509A (en) * | 2021-12-16 | 2022-03-11 | 中国科学院电工研究所 | Silk fiber with ultraviolet and near-infrared shielding performance and preparation method and application thereof |
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