CN106319929B - A kind of preparation method of ageing-resistant silk fiber - Google Patents

A kind of preparation method of ageing-resistant silk fiber Download PDF

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CN106319929B
CN106319929B CN201610686157.3A CN201610686157A CN106319929B CN 106319929 B CN106319929 B CN 106319929B CN 201610686157 A CN201610686157 A CN 201610686157A CN 106319929 B CN106319929 B CN 106319929B
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silk fiber
cellulose
gamma
fibroin
solution
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CN106319929A (en
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陈开泰
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Huamei Fashion Group Co.,Ltd.
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Yongxin Shantou Weaving Co Ltd
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    • DTEXTILES; PAPER
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    • D06M15/00Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/01Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with natural macromolecular compounds or derivatives thereof
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    • C08B37/00Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
    • C08B37/0006Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid
    • C08B37/0009Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid alpha-D-Glucans, e.g. polydextrose, alternan, glycogen; (alpha-1,4)(alpha-1,6)-D-Glucans; (alpha-1,3)(alpha-1,4)-D-Glucans, e.g. isolichenan or nigeran; (alpha-1,4)-D-Glucans; (alpha-1,3)-D-Glucans, e.g. pseudonigeran; Derivatives thereof
    • C08B37/0012Cyclodextrin [CD], e.g. cycle with 6 units (alpha), with 7 units (beta) and with 8 units (gamma), large-ring cyclodextrin or cycloamylose with 9 units or more; Derivatives thereof
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    • D06M11/00Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/32Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/36Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/46Oxides or hydroxides of elements of Groups 4 or 14 of the Periodic Table; Titanates; Zirconates; Stannates; Plumbates
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    • D06M13/10Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
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    • D06M15/01Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with natural macromolecular compounds or derivatives thereof
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    • D06M15/37Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/643Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon in the main chain
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    • D06M16/006Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic with wool-protecting agents; with anti-moth agents
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    • D06M2101/12Keratin fibres or silk

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Abstract

The present invention relates to textile material fields, disclose a kind of preparation method of ageing-resistant silk fiber, including:Step 1:The preparation of γ cyclodextrin list aldehyde;Step 2:Carry the preparation of silver γ cyclodextrin list aldehyde;Step 3:The preparation of cellulose fibroin titanium dioxide xerogel particles;Step 4:Silk fiber is grafted;Step 5:Silk fiber dip finishing.Silk fiber produced by the present invention can effectively delay silk fiber aging and can avoid the generation of moth spot and bacterial plaque, and timeliness is long, additionally it is possible to keep the original compliance of silk and promote the tensile strength of silk, and it is environmentally friendly, human body will not be impacted.

Description

A kind of preparation method of ageing-resistant silk fiber
Technical field
The present invention relates to textile material fields, more particularly to silk fiber field.
Background technology
Silk is the secreted concretionary continuous fiber of silk liquid, also referred to as natural silk when matured silkworm cocoons, and is a kind of natural Fiber is earliest one of the animal origin of human use.Silk is light and elongated, and fabric sheen is good, comfortable and easy to wear, and feel is smooth Plentiful, poor heat conductivity, moisture absorption is ventilative, is widely used in and weaves various silks and satins and knitwear.But since silk main component is by moving Object albumen, quality is more fragile, and jaundice is easy after long-time illumination, is hardened;On the other hand, silk fiber is vulnerable to micro- life Object.The erosion of insects not only influences beautiful and feel, but also can make silk fiber accelerated ageing, and intensity declines, and is easy broken Damage.
Authorization Notice No. is that the patent of invention of CN103741458A discloses a kind of silk fabric antibacterial moth proofing agent, it It is to be grouped as by the group of following parts by weight:7-15 parts of Fructus Caryophylli powder, 7-14 parts of granatum powder, 5-9 parts of silicone oil, 2-7 parts of beeswax, 3-9 parts of alkylolamides, 2-6 parts of polyvinylpyrrolidone, 4-7 parts of xylene monosulfonic acid potassium, 2-7 parts of lactose, 3-7 parts of starch, wine 20-24 parts smart, 5-9 parts of phenyl salicylate, 5-9 parts of Span60.The silk fabric antibacterial of the invention is mothproof whole Reason agent has effects that antibacterial is mothproof, excellent effect.(2) finish fabric has good washability and soft feel;(3) work is prepared Skill is simple, non-toxic to humans, will not destroy the silk in silk fabric.
But the timeliness of above-mentioned silk fabric antibacterial moth proofing agent is poor, can not keep effect for a long time, and to silk After fibre finish, the compliance of silk can be influenced.Also, the silk fabric antibacterial moth proofing agent does not have anti-aging function.
Invention content
In order to solve the above technical problem, the present invention provides a kind of preparation methods of ageing-resistant silk fiber.The present invention Silk fiber obtained can effectively delay silk fiber aging and can avoid the generation of moth spot and bacterial plaque, and timeliness is long, this Outside, additionally it is possible to keep the original compliance of silk and promote the tensile strength of silk, and is environmentally friendly, human body will not be made At influence.
The specific technical solution of the present invention is:A kind of preparation method of ageing-resistant silk fiber, carries out according to the following steps:
Step 1:By gamma-cyclodextrin, adjacent iodosobenzoic acid, dimethyl sulfoxide (DMSO) 5-10 in mass ratio:3-5:100 mixing, Solution is reacted into 8-16h in 40-50 DEG C of ultrasound bath after being completely dissolved;It is filtered after reaction, takes filtrate, will filtered with acetone 40-50 times of liquid agitation and dilution, is filtered again, takes solid, and the water of 30-35 times of solid masses is used in combination to be dissolved, and then carries out It filters three times, takes filtrate, gamma-cyclodextrin list aldehyde is made after dry, it is spare.
Step 2:Gamma-cyclodextrin list aldehyde in part obtained above is formulated as the gamma-cyclodextrin list that mass concentration is 4-6% Aldehyde solution adds the silver nitrate that quality is 0.3-0.5 times of gamma-cyclodextrin list aldehyde into gamma-cyclodextrin list aldehyde solution, stirs evenly Afterwards, solution ph is controlled in 4-6, under the conditions of being protected from light, is heated to 50-60 DEG C and keeps the temperature 2-3h, be then centrifuged for isolated Solid, solid is cleaned, after drying, is dissolved in sodium hydroxide solution, and it is solid 0.5- that quality is added into sodium hydroxide solution 1.5% sodium borohydride adjusts pH to 7-8, is then stirred, and is made after centrifuging and drying again and carries silver γ-ring paste Smart list aldehyde.
Step 3:It is a concentration of that cellulose, fibroin albumen are formulated as a concentration of 2-4% of cellulose quality, fibroin albumen quality The mixed solution of 1-3% successively adds the load silver gamma-cyclodextrin list aldehyde of mixed solution quality 0.5-1.5% into mixed solution With the ethylene glycol diglycidylether of mixed solution quality 0.1-0.3%, mixed sols is made after being uniformly dispersed, by mixed sols With titania hydrosol 4-6 in mass ratio:1 mixing, is transferred in -10 DEG C to -6 DEG C of environment after stirring evenly and freezes 2-3 It, thaws after frost, and cellulose-fibroin-titanium dioxide hydrogel is made;With ethyl alcohol to cellulose-fibroin-titanium dioxide After hydrogel carries out solvent displacement for several times, cellulose-fibroin-titanium dioxide alcogel is made;To cellulose-fibroin-titanium dioxide Titanium alcogel carries out supercritical fluid drying, eventually passes through grinding and cellulose-fibroin-titanium dioxide xerogel particles are made.
Step 4:Silk fiber, gamma-cyclodextrin list aldehyde and fiber are successively added into the aqueous hydrochloric acid solution that pH value is 5-6 Element-fibroin-titanium dioxide xerogel particles is heated to 38-42 DEG C of reaction 2-3h, wherein silk fiber, γ-ring after stirring evenly The mass ratio of dextrin list aldehyde, cellulose-fibroin-titanium dioxide xerogel particles and aqueous hydrochloric acid solution is 2-3:3-5:1-3:100; Then enough sodium cyanoborohydrides are added, reacts 3-5 days, reaction solution is finally adjusted to neutrality, silk fiber is taken out and washed Only.
Step 5:By step 4 treated silk fiber impregnation in dressing liquid, takes out and is dried after dipping, Ageing-resistant silk fiber is made;The dressing liquid include the mothproof essential oil of 5-15wt%, 1-3wt% hydrophilic amino silicone oil, The ethyl alcohol of 10-30wt% and the water of surplus.
First gamma-cyclodextrin list aldehyde is made with gamma-cyclodextrin in step 1 of the present invention, and gamma-cyclodextrin list aldehyde can be grafted to silk On fiber.In step 2, a part of gamma-cyclodextrin list aldehyde is taken, carries out carrying silver using the suction-operated of gamma-cyclodextrin list aldehyde, it can So that silk fiber has antibacterial effect.Cellulose-is made in cellulose, fibroin albumen, the silver-colored gamma-cyclodextrin list aldehyde of load by step 3 Fibroin-titanium dioxide xerogel particles has extra specific surface area and outstanding suction-operated, and selects cellulose, fibroin albumen As main material, the tensile strength of silk fiber, homologous substance of the fibroin albumen as silk fiber, compatibility can be promoted More preferably, titanium dioxide has outstanding anti-light aging, and silk fiber can be delayed to be illuminated by the light yellow, aging;Ethylene glycol two contracts Water glycerin ether can improve the degree of cross linking in hydrogel forming process, and stability is more preferable.Step 4 is by gamma-cyclodextrin list aldehyde, fiber Element-fibroin-titanium dioxide xerogel particles are grafted on silk fiber.Silk fiber after grafting is impregnated in arrangement by step 5 In liquid, there are gamma-cyclodextrin list aldehyde molecule micro-cavities, cellulose-fibroin-titanium dioxide xerogel particles to have complicated three Pore passage structure is tieed up, the two mutual cooperation can fully adsorb mothproof ingredient in dressing liquid, and absorption fastness is good, and with slow Effect is released, to keep the mothproof timeliness of silk fiber good.
Further, the grain size of the cellulose-fibroin-titanium dioxide xerogel particles is less than or equal to 1 micron.
Further, the silk fiber passes through pretreatment before step 4:By silk fiber temperature be 35-45 DEG C Water in be swollen 1-3h, then take out in mass ratio 1:Silk fiber is impregnated in the carbon that mass concentration is 0.2-0.4% by 60-80 In sour potassium solution, 0.5-1h is boiled;Finally silk fiber taking-up is dried spare.
Pretreated silk fiber can be preferably grafted with gamma-cyclodextrin list aldehyde.
Further, the impregnation technology of silk fiber is in step 5:The mass ratio of silk fiber and dressing liquid is 1:100- 200;Dressing liquid temperature is 45-55 DEG C;Dip time is 8-10h.
Further, mothproof essential oil described in step 5 is cedarwood essential oil, Lavender, Peppermint essential oil, cinnamomum camphora essential oil In one or more mixtures.
It is compared with the prior art, the beneficial effects of the invention are as follows:Silk fiber produced by the present invention can effectively delay silkworm Silk fiber aging and the generation that moth spot and bacterial plaque can be avoided, and timeliness is long, additionally it is possible to keep the original compliance of silk It is and environmentally friendly with the tensile strength for promoting silk, human body will not be impacted.When the mothproof effect of silk fiber becomes When poor, it can be impregnated in dressing liquid again.
Specific implementation mode
With reference to embodiment, the invention will be further described.
Embodiment 1
A kind of preparation method of ageing-resistant silk fiber, carries out according to the following steps:
Step 1:By gamma-cyclodextrin, adjacent iodosobenzoic acid, dimethyl sulfoxide (DMSO) in mass ratio 7.5:4:100 mixing, completely Solution is reacted into 12h in 45 DEG C of ultrasound bath after dissolving;It is filtered after reaction, takes filtrate, stirred filtrate with acetone dilute 45 times are released, is filtered again, solid is taken, the water of 32 times of solid masses is used in combination to be dissolved, third time filtering is then carried out, takes filter Gamma-cyclodextrin list aldehyde is made in liquid after dry, spare.
Step 2:Gamma-cyclodextrin list aldehyde in part obtained above is formulated as the gamma-cyclodextrin list aldehyde that mass concentration is 5% Solution adds the silver nitrate that quality is 0.4 times of gamma-cyclodextrin list aldehyde into gamma-cyclodextrin list aldehyde solution, will after stirring evenly Solution ph is controlled 5, under the conditions of being protected from light, is heated to 55 DEG C and is kept the temperature 2.5h, be then centrifuged for isolated solid, by solid It cleans, after drying, is dissolved in sodium hydroxide solution, the sodium borohydride that quality is solid 1% is added into sodium hydroxide solution, is adjusted PH to 7.5 is saved, is then stirred, is made after centrifuging and drying again and carries silver-colored gamma-cyclodextrin list aldehyde.
Step 3:Cellulose, fibroin albumen be formulated as to cellulose quality is a concentration of 3%, fibroin albumen quality is a concentration of 2% mixed solution successively adds the load silver gamma-cyclodextrin list aldehyde of mixed solution quality 1% into mixed solution and mixes molten Mixed sols is made, by mixed sols and titanium dioxide water in the ethylene glycol diglycidylether of liquid quality 0.2% after being uniformly dispersed Colloidal sol in mass ratio 56:1 mixing, is transferred in -8 DEG C of environment after stirring evenly and freezes 2.5 days, thaw after frost, makes Obtain cellulose-fibroin-titanium dioxide hydrogel;Solvent for several times is carried out with ethyl alcohol to cellulose-fibroin-titanium dioxide hydrogel to set After changing, cellulose-fibroin-titanium dioxide alcogel is made;Shooting flow is carried out to cellulose-fibroin-titanium dioxide alcogel Soma is dry, eventually passes through grinding and cellulose-fibroin-titanium dioxide xerogel particles that grain size is less than 1 micron are made.
Step 4:Silk fiber is swollen 2h in the water that temperature is 40 DEG C, then takes out in mass ratio 1:70 by silk fibroin Dimension is impregnated in the solution of potassium carbonate that mass concentration is 0.3%, boils 45min;Finally silk fiber taking-up is dried spare.
Pretreated silk fiber, gamma-cyclodextrin list aldehyde and fibre are successively added in the aqueous hydrochloric acid solution for being 5.5 to pH value Element-fibroin-titanium dioxide xerogel particles are tieed up, 40 DEG C of reaction 2.5h, wherein silk fiber, γ-ring are heated to after stirring evenly The mass ratio of dextrin list aldehyde, cellulose-fibroin-titanium dioxide xerogel particles and aqueous hydrochloric acid solution is
2.5:4:2:100;Then enough sodium cyanoborohydrides are added, reacts 4 days, reaction solution is finally adjusted to neutrality, Silk fiber is taken out and cleaned.
Step 5:By step 4 treated silk fiber impregnation in dressing liquid, takes out and is dried after dipping, Ageing-resistant silk fiber is made;The dressing liquid includes the parent of the cedarwood essential oil of 5wt%, the cinnamomum camphora essential oil of 5wt%, 2wt% The water of aqueous amido silicon oil, the ethyl alcohol of 20wt% and surplus.Impregnation technology is:The mass ratio of silk fiber and dressing liquid is 1: 150;Dressing liquid temperature is 50 DEG C;Dip time is 9h.
Embodiment 2
A kind of preparation method of ageing-resistant silk fiber, carries out according to the following steps:
Step 1:By gamma-cyclodextrin, adjacent iodosobenzoic acid, dimethyl sulfoxide (DMSO) in mass ratio 5:3:100 mixing, it is completely molten Solution is reacted into 16h in 40 DEG C of ultrasound bath after solution;It is filtered after reaction, takes filtrate, with acetone by filtrate agitation and dilution It 40 times, filters again, takes solid, the water of 30 times of solid masses is used in combination to be dissolved, then carry out third time filtering, take filtrate, Gamma-cyclodextrin list aldehyde is made after drying, it is spare.
Step 2:Gamma-cyclodextrin list aldehyde in part obtained above is formulated as the gamma-cyclodextrin list aldehyde that mass concentration is 4% Solution adds the silver nitrate that quality is 0.3 times of gamma-cyclodextrin list aldehyde into gamma-cyclodextrin list aldehyde solution, will after stirring evenly Solution ph is controlled 4, under the conditions of being protected from light, is heated to 50 DEG C and is kept the temperature 3h, be then centrifuged for isolated solid, solid is washed Only it, after dry, is dissolved in sodium hydroxide solution, the sodium borohydride that quality is solid 0.5% is added into sodium hydroxide solution, is adjusted PH to 7 is saved, is then stirred, is made after centrifuging and drying again and carries silver-colored gamma-cyclodextrin list aldehyde.
Step 3:Cellulose, fibroin albumen be formulated as to cellulose quality is a concentration of 2%, fibroin albumen quality is a concentration of 1% mixed solution successively adds load silver gamma-cyclodextrin list aldehyde and the mixing of mixed solution quality 0.5% into mixed solution Mixed sols is made, by mixed sols and titanium dioxide in the ethylene glycol diglycidylether of solution quality 0.1% after being uniformly dispersed The hydrosol in mass ratio 4:1 mixing, is transferred in -10 environment after stirring evenly and freezes 2 days, thaw after frost, is made Cellulose-fibroin-titanium dioxide hydrogel;Solvent displacement for several times is carried out to cellulose-fibroin-titanium dioxide hydrogel with ethyl alcohol Afterwards, cellulose-fibroin-titanium dioxide alcogel is made;Supercritical fluid is carried out to cellulose-fibroin-titanium dioxide alcogel It is dry, it eventually passes through grinding and cellulose-fibroin-titanium dioxide xerogel particles that grain size is less than 1 micron is made.
Step 4:Silk fiber is swollen 3h in the water that temperature is 35 DEG C, then takes out in mass ratio 1:60 by silk fibroin Dimension is impregnated in the solution of potassium carbonate that mass concentration is 0.2%, boils 1h;Finally silk fiber taking-up is dried spare.
Pretreated silk fiber, gamma-cyclodextrin list aldehyde and fiber are successively added in the aqueous hydrochloric acid solution for being 5 to pH value Element-fibroin-titanium dioxide xerogel particles is heated to 38 DEG C of reaction 3h, wherein silk fiber, gamma-cyclodextrin after stirring evenly The mass ratio of single aldehyde, cellulose-fibroin-titanium dioxide xerogel particles and aqueous hydrochloric acid solution is 2:3:1:100;Then addition foot The sodium cyanoborohydride of amount reacts 3 days, reaction solution is finally adjusted to neutrality, silk fiber is taken out and cleaned.
Step 5:By step 4 treated silk fiber impregnation in dressing liquid, takes out and is dried after dipping, Ageing-resistant silk fiber is made;The dressing liquid include the Lavender of 5wt%, 1wt% hydrophilic amino silicone oil, The ethyl alcohol of 10wt% and the water of surplus.Impregnation technology is:The mass ratio of silk fiber and dressing liquid is 1:100;Dressing liquid temperature It is 45 DEG C;Dip time is 10h.
Embodiment 3
A kind of preparation method of ageing-resistant silk fiber, carries out according to the following steps:
Step 1:By gamma-cyclodextrin, adjacent iodosobenzoic acid, dimethyl sulfoxide (DMSO) in mass ratio 10:5:100 mixing, completely Solution is reacted into 8h in 50 DEG C of ultrasound bath after dissolving;It is filtered after reaction, takes filtrate, with acetone by filtrate agitation and dilution It 50 times, filters again, takes solid, the water of 35 times of solid masses is used in combination to be dissolved, then carry out third time filtering, take filtrate, Gamma-cyclodextrin list aldehyde is made after drying, it is spare.
Step 2:Gamma-cyclodextrin list aldehyde in part obtained above is formulated as the gamma-cyclodextrin list aldehyde that mass concentration is 6% Solution adds the silver nitrate that quality is 0.5 times of gamma-cyclodextrin list aldehyde into gamma-cyclodextrin list aldehyde solution, will after stirring evenly Solution ph is controlled 6, under the conditions of being protected from light, is heated to 60 DEG C and is kept the temperature 2h, be then centrifuged for isolated solid, solid is washed Only it, after dry, is dissolved in sodium hydroxide solution, the sodium borohydride that quality is solid 1.5% is added into sodium hydroxide solution, is adjusted PH to 8 is saved, is then stirred, is made after centrifuging and drying again and carries silver-colored gamma-cyclodextrin list aldehyde.
Step 3:Cellulose, fibroin albumen be formulated as to cellulose quality is a concentration of 4%, fibroin albumen quality is a concentration of 3% mixed solution successively adds load silver gamma-cyclodextrin list aldehyde and the mixing of mixed solution quality 1.5% into mixed solution Mixed sols is made, by mixed sols and titanium dioxide in the ethylene glycol diglycidylether of solution quality 0.3% after being uniformly dispersed The hydrosol in mass ratio 6:1 mixing, is transferred in -6 DEG C of environment after stirring evenly and freezes 3 days, thaw after frost, is made Cellulose-fibroin-titanium dioxide hydrogel;Solvent displacement for several times is carried out to cellulose-fibroin-titanium dioxide hydrogel with ethyl alcohol Afterwards, cellulose-fibroin-titanium dioxide alcogel is made;Supercritical fluid is carried out to cellulose-fibroin-titanium dioxide alcogel It is dry, it eventually passes through grinding and cellulose-fibroin-titanium dioxide xerogel particles that grain size is less than 1 micron is made.
Step 4:Silk fiber is swollen 1h in the water that temperature is 45 DEG C, then takes out in mass ratio 1:80 by silk fibroin Dimension is impregnated in the solution of potassium carbonate that mass concentration is 0.4%, boils 0.5h;Finally silk fiber taking-up is dried spare.
Pretreated silk fiber, gamma-cyclodextrin list aldehyde and fiber are successively added in the aqueous hydrochloric acid solution for being 6 to pH value Element-fibroin-titanium dioxide xerogel particles is heated to 42 DEG C of reaction 2h, wherein silk fiber, gamma-cyclodextrin after stirring evenly The mass ratio of single aldehyde, cellulose-fibroin-titanium dioxide xerogel particles and aqueous hydrochloric acid solution is 3:5:3:100;Then addition foot The sodium cyanoborohydride of amount reacts 5 days, reaction solution is finally adjusted to neutrality, silk fiber is taken out and cleaned.
Step 5:By step 4 treated silk fiber impregnation in dressing liquid, takes out and is dried after dipping, Ageing-resistant silk fiber is made;The dressing liquid include the Lavender of 10wt%, the Peppermint essential oil of 5wt%, 3wt% parent The water of aqueous amido silicon oil, the ethyl alcohol of 30wt% and surplus.Impregnation technology is:The mass ratio of silk fiber and dressing liquid is 1: 200;Dressing liquid temperature is 55 DEG C;Dip time is 8h.
Ageing-resistant test is carried out with type silk fiber to ageing-resistant silk fiber made from the embodiment of the present invention 1, is surveyed Strip part is:Ageing-resistant silk fiber is placed into 200h with type silk fiber in the case where illumination is the halogen lamp of l250lx, away from From for 30cm, temperature is controlled at 30 DEG C.It carries out fracture strength and elongation at break is tested, ageing-resistant silk fiber is compared With type silk fiber, the high 30-40% of fracture strength, the high 20-30% of elongation at break.
Mothproof effect is carried out by ageing-resistant silk fiber made from the embodiment of the present invention 1 to be tested, mothproof effect can Up to 1-2, and after repeatedly washing, better effects can be still kept.In addition to ageing-resistant silk fiber fabric and same type Silk fiber fabric carries out stiffness test, ageing-resistant silk fiber boardness to decline 3-5% or so, therefore to silk The pliability of fiber influences little.
Raw materials used in the present invention, equipment is unless otherwise noted the common raw material, equipment of this field;In the present invention Method therefor is unless otherwise noted the conventional method of this field.
The above is only presently preferred embodiments of the present invention, is not imposed any restrictions to the present invention, every according to the present invention Technical spirit still falls within the technology of the present invention side to any simple modification, change and equivalent transformation made by above example The protection domain of case.

Claims (5)

1. a kind of preparation method of ageing-resistant silk fiber, it is characterised in that carry out according to the following steps:
Step 1:By gamma-cyclodextrin, adjacent iodosobenzoic acid, dimethyl sulfoxide (DMSO) 5-10 in mass ratio:3-5:100 mixing, completely Solution is reacted into 8-16h in 40-50 DEG C of ultrasound bath after dissolving;It is filtered after reaction, takes filtrate, stirred filtrate with acetone 40-50 times of dilution is mixed, filters again, takes solid, the water of 30-35 times of solid masses is used in combination to be dissolved, then carries out third time Filtering takes filtrate, and gamma-cyclodextrin list aldehyde is made after dry, spare;
Step 2:It is molten that gamma-cyclodextrin list aldehyde in part obtained above is formulated as the gamma-cyclodextrin list aldehyde that mass concentration is 4-6% Liquid adds the silver nitrate that quality is 0.3-0.5 times of gamma-cyclodextrin list aldehyde into gamma-cyclodextrin list aldehyde solution, after stirring evenly, Solution ph is controlled in 4-6, under the conditions of being protected from light, 50-60 DEG C is heated to and keeps the temperature 2-3h, be then centrifuged for isolated solid Body, solid is cleaned, after drying, is dissolved in sodium hydroxide solution, and it is solid 0.5- that quality is added into sodium hydroxide solution 1.5% sodium borohydride adjusts pH to 7-8, is then stirred, and is made after centrifuging and drying again and carries silver γ-ring paste Smart list aldehyde;
Step 3:Cellulose, fibroin albumen are formulated as a concentration of 2-4% of cellulose quality, a concentration of 1- of fibroin albumen quality 3% mixed solution, successively added into mixed solution mixed solution quality 0.5-1.5% load silver gamma-cyclodextrin list aldehyde and The ethylene glycol diglycidylether of mixed solution quality 0.1-0.3%, after being uniformly dispersed be made mixed sols, by mixed sols with Titania hydrosol 4-6 in mass ratio:1 mixing, is transferred in -10 DEG C to -6 DEG C of environment after stirring evenly and freezes 2-3 days, It thaws after frost, cellulose-fibroin-titanium dioxide hydrogel is made;With ethyl alcohol to cellulose-fibroin-titanium dioxide water After gel carries out solvent displacement for several times, cellulose-fibroin-titanium dioxide alcogel is made;To cellulose-fibroin-titanium dioxide Alcogel carries out supercritical fluid drying, eventually passes through grinding and cellulose-fibroin-titanium dioxide xerogel particles are made;
Step 4:Silk fiber, gamma-cyclodextrin list aldehyde and cellulose-silk are successively added into the aqueous hydrochloric acid solution that pH value is 5-6 Element-titanium dioxide xerogel particles is heated to 38-42 DEG C of reaction 2-3h, wherein silk fiber, gamma-cyclodextrin after stirring evenly The mass ratio of single aldehyde, cellulose-fibroin-titanium dioxide xerogel particles and aqueous hydrochloric acid solution is 2-3:3-5:1-3:100;Then Enough sodium cyanoborohydrides are added, reacts 3-5 days, reaction solution is finally adjusted to neutrality, silk fiber is taken out and cleaned;
Step 5:By step 4 treated silk fiber impregnation in dressing liquid, takes out and be dried after dipping, be made Ageing-resistant silk fiber;The dressing liquid includes the mothproof essential oil of 5-15wt%, the hydrophilic amino silicone oil of 1-3wt%, 10- The ethyl alcohol of 30wt% and the water of surplus.
2. a kind of preparation method of ageing-resistant silk fiber as described in claim 1, which is characterized in that the cellulose-silk The grain size of element-titanium dioxide xerogel particles is less than or equal to 1 micron.
3. a kind of preparation method of ageing-resistant silk fiber as described in claim 1, which is characterized in that the silk fiber exists By pretreatment before step 4:Silk fiber is swollen 1-3h in the water that temperature is 35-45 DEG C, is then taken out, in mass ratio 1:Silk fiber is impregnated in the solution of potassium carbonate that mass concentration is 0.2-0.4% by 60-80, boils 0.5-1h;Finally by silkworm Silk fiber taking-up is dried spare.
4. a kind of preparation method of ageing-resistant silk fiber as described in claim 1, which is characterized in that silk fibroin in step 5 The impregnation technology of dimension is:The mass ratio of silk fiber and dressing liquid is 1:100-200;Dressing liquid temperature is 45-55 DEG C;When dipping Between be 8-10h.
5. a kind of preparation method of ageing-resistant silk fiber as described in claim 1 or 4, which is characterized in that described in step 5 Mothproof essential oil is one or more mixtures in cedarwood essential oil, Lavender, Peppermint essential oil, cinnamomum camphora essential oil.
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CN107142717A (en) * 2017-06-28 2017-09-08 南通大学 A kind of production method of the anti-aging geotextiles of the hydrosol
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