CN102912629B - Preparation method of bacterial-cellulose-based generating fiber and yarn - Google Patents
Preparation method of bacterial-cellulose-based generating fiber and yarn Download PDFInfo
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Abstract
Disclosed is a preparation method of bacterial-cellulose-based generating fiber. The preparation method includes soaking ultrafine ribbon of bacterial cellulose into nano-ZnO sol, dipping to obtain bacterial cellulose B, and extracting for standby; placing the bacterial cellulose B into zinc amino salt solution for reacting for a certain time to form bacterial cellulose C; performing surface metallization to the bacterial cellulose C; and preparing bacterial cellulose fiber having generating performance. The prepared finished products are bacterial-cellulose-based generating fiber and yarn, which can be deeply processed by the existing spinning and weaving technology. Mechanical generating components different in scale are formed, and the bacterial-cellulose-based generating fiber and yarn are widely applied to fields, which have requirements for different sizes and powers of self-generating components, such as environment monitoring, biochips implanted into bodies, cars, buildings and military areas.
Description
Technical field
The present invention relates to the preparation method of a kind of bacteria cellulose base generating fiber and yarn, particularly a kind of bacteria cellulose base that can be applied to miniature, high-performance electronic apparatus and the self-powered of sensor preparation method of fiber and yarn that generates electricity.
Background technology
Along with the development of economic society, electricity has been a part indispensable in society.The present power status of China is city short of electricity, remote without electricity, spring and autumn paddy, summer in winter peak.Although the engineering of transferring electricity from the west to the east has been opened by country, the power loss of long distance powedr transmission and high track laying expense make the cost of electric power go up not down.The data demonstration of China Electricity Council's issue, within 2011, China's power consumption reaches 4.69 trillion kilowatt hours, increases by 11.7% on a year-on-year basis.Within 2010, the maximum breach of power supply and demand is 3,000 ten thousand kilowatts; Meeting maximum breach during the kurtosis summer is 2,500 ten thousand kilowatts.At present, generated energy far can not meet the demand of economic growth.
Yet capacity of installed generator is also reducing year by year, within 2011, the newly-increased capacity of installed generator in the whole nation has surpassed 9,000 ten thousand kilowatts, but the scale in fact effectively increasing reduces.Thermoelectricity is China generating main force, yet thermoelectricity loses electric look forward to losing investment drive and the ability of making year after year, and thermoelectricity investment decline continuously and healthily, by 2,271 hundred million yuan of 1,054 hundred million yuan of reducing to fast 2011 of 2005.The variation of weather causes occurring that extremely cold, very hot weather and electric coal price lattice continue the anxiety that run at high level has also aggravated electricity consumption.Therefore, a few years from now on electric power breach will continue to expand certainly, estimate will reach for 2012 5000 ten thousand kilowatts.Electric power supply is not enough causes " hard short of electricity " phenomenon unavoidable.Moreover from far-off regions due to landform and fund, a lot of local power supplies are restricted does not even also switch on.Military combat, interchange, traffic etc. during pleasure trip on foot are because entrained electric weight is limited and can not remain permanent, for meagrely-populated region, the supply of power equipment is also a problem, current large-scale TRT is more complicated and big energy-consuming all, the manufacture of small-sized electric generating apparatus, reclaims and improperly all can cause very large harm to environment.Therefore, the Technology Need that we are present, the self power generation of generating electricity, to improve electricity usage efficiency, reduces electric power conveying process, reduces costs instant our the needed electric energy that obtains from life.
The development of microelectronics and micro-fabrication technology makes the micro-systems such as wireless sense network and microactrator be widely used in environmental monitoring, body and is implanted into biochip, automobile, building, the key areas such as military.Along with going deep into of research, the pursuit to function of MEMS is more and more stronger, more and more lower to the requirement of power consumption, the research that volume and size have been entered to nanoscale.
Nanometer technology, as the important emerge science technical field of 21 century, is just experiencing high speed development in theory and practice.A large amount of novel nano device and materials are constantly developed, for people's life brings more facility.Meanwhile, also from microelectric technique research aspect for we have brought the clean technologies that solve energy crisis.
Yet Nano-technology Development is to today, large quantity research is all to concentrate on to develop high sensitivity, high performance nano-device, almost without any the research of the power-supply system about nanoscale.But the nano-sensor that is applied to the aspects such as biological national defence is urgent all the more because of the lifting of technology to the demand of this power supply.In general the power supply of these devices is all directly or indirectly to derive from battery.Sensor can provide power supply to oneself from own in object, thereby the miniaturization that simultaneously realizes device and power supply is the target of researcher's Recent study.
Since Curie brother finds that in quartz crystal piezo-electric effect starts, people are just devoted to mechanical energy to be converted into the research of electric energy always.Conventional piezoelectric, because of its electric property, although can form potential change, can not form the Schottky barrier with unilateral conduction as metal, thereby can not reach this process of release that gathers of energy.Thereby piezoelectric circuit generally needs a complicated external circuits to complete the output of electric energy now.And conventional piezoelectric causes piezoelectric structure can not accomplish miniaturization because crystal structure is too complicated, say nothing of the high-quality piezoelectric structure of nanoscale.But when the metal oxides such as zinc oxide and silica enter after the research category of piezoelectric fabric, its simple chemical composition and crystal structure bring up the easy control of its purity, size, pattern.Its electric conductivity as metal oxide and as the power generation performance of piezoelectric excellence, becomes rapidly the important materials of current piezoelectric research.
The scientist Wang Zhonglin leader's of Chinese origin of the georgia ,u.s.a Institute of Technology in 2006 scientific research group develops a kind of novel plated zinc oxide nanofiber that can produce electric energy, and at motor driving because piezo-electric effect produces electric energy; The U.S. in 2011 and Chinese scientist's joint study have gone out take zinc oxide nanowire as a kind of piezoelectric nano generator on basis, realized on nanoscale mechanical energy is converted into electric energy.But present material, because of the sharply reduction mediocre and efficiency under wet environment of its overall work efficiency, can not come into operation well.
Summary of the invention
Order of the present invention is to provide the preparation method of a kind of bacteria cellulose base generating fiber and yarn.The prepared nanometer bacteria cellulose base of the present invention generating fiber and yarn can be applied to environmental monitoring, body and be implanted into biochip, automobile, building, the important field that needs microdevice miniature self-generating source corresponding thereto such as military.
For achieving the above object, the technical solution used in the present invention is as follows:
The preparation method of bacteria cellulose base generating fiber of the present invention, comprises the steps:
(1) bacterial cellulose wet-coating after bleaching is placed between a pair of gripping roller, according to the speed feeding of 10 mm ~ 100 m/ minutes;
(2) from the cellulose membrane of exporting between roller, through licker-in surface acupuncture, puncture at a high speed, isolate and combing effect, bacterial cellulose wet-coating is become to bacteria cellulose fibre; Bacteria cellulose fibre is processed through filter press press filtration, prepared bacteria cellulose superfine fibre bar;
(3) configure respectively zinc solution and alkaline solution, by blend, prepare the Nano-ZnO Sol of ambient-temp-stable; Bacteria cellulose superfine fibre bar is immersed to Nano-ZnO Sol, and dipping obtains bacteria cellulose B, takes out postlyophilization, stand-by; (preparation of Nano-ZnO Sol is with reference to Preparation of ZnO ultrafine powder by Sol-Gel method Chinese journal of scientific instrument 1995(1) 37-40; The journal 2009.4.113-116 of progress Industrial and Commercial University Of Chongqing of the superfine Synthesis of ZnO Nanoparticles by Sol-Gel Method of Ran De.）
(4) bacteria cellulose B is put into amido zinc solution, reaction a period of time, form bacteria cellulose C, take out postlyophilization, then in 60-100 ℃ of thermal environment, place, stand-by;
(5) bacteria cellulose C is carried out to the coat of metal conductive processing of plating; Prepare the bacteria cellulose fibre with power generation performance, described metal is any one in Pt, Au, Cu, Al, Zn or Ag.
The diameter of the gripping roller using in step (1) is 20 ~ 3000mm, is preferably 30 ~ 300mm.
The moisture content of the bacteria cellulose super fiber of processing through press filtration in step (2) is between 15% ~ 50000%, and the diameter of superfine fibre is at 10 ~ 500nm, and superfine fibre length is between 200nm ~ 200mm.
The moisture content of the bacteria cellulose super fiber of processing through press filtration in step (2) is preferably between 30% ~ 3000%, and the diameter of superfine fibre is preferably at 30 ~ 300nm, and superfine fibre length is preferably between 500nm ~ 100mm.
The collosol temperature that in step (3), bacteria cellulose bar immerses is between 80 ~ 100 ℃, and dip time is 5 ~ 100min.
Amido zinc solution described in step (4) is the mixed liquor of zinc solution and amine aqueous solution, and in solution, zinc ion and amine ion concentration are 0.01mol/L; Bacteria cellulose B is 1:1 with the mass ratio of the amido zinc solution of putting into, 80 ~ 100 ℃ of reaction temperatures, and the reaction time is 24 ~ 72 hours.
Described zinc salt is any one in zinc nitrate, zinc acetate, zinc acetylacetonate or zinc chloride.Described amine aqueous solution is any one in hexa, urea, ammoniacal liquor, monoethanolamine, diethanol amine, triethanolamine solution;
Bacteria cellulose B is 1:1 with the mass ratio of the amido zinc solution of putting into, 80 ~ 100 ℃ of reaction temperatures, and the reaction time is 24 ~ 72 hours.
Step (5) coat of metal conductive processing can be that the methods such as metal steam vapour plating, vacuum sputtering, magnetron sputtering and CVD are processed.
Adopt bacteria cellulose base generating fiber spinning of the present invention to obtain bacteria cellulose base generating yarn of the present invention.
The made finished product of the present invention is bacteria cellulose base generating fiber and yarn, can carry out deep processing by existing weaving weaving technology.Can form the mechanical electrification component of different scales yardstick, be widely used in environmental monitoring, body and be implanted into biochip, automobile, building, the field that self power generation assembly is had to different size power requirement such as military.
The specific embodiment
Embodiment 1
The preparation method of the bacteria cellulose base generating fiber of the present embodiment, comprises the steps:
(1) bacterial cellulose wet-coating after bleaching is placed between a pair of gripping roller, according to the speed feeding of 10 mm ~ 100 m/ minutes; The diameter of the gripping roller using is 20 ~ 3000mm.
(2) from the cellulose membrane of exporting between roller, through licker-in surface acupuncture, puncture at a high speed, isolate and combing effect, bacterial cellulose wet-coating is become to bacteria cellulose fibre; Bacteria cellulose fibre is processed through filter press press filtration, prepared bacteria cellulose superfine fibre bar; The moisture content of the bacteria cellulose super fiber of processing through press filtration is between 15% ~ 50000%, and the diameter of superfine fibre is at 10 ~ 500nm, and superfine fibre length is between 200nm ~ 200mm.
(3) configure respectively zinc solution and alkaline solution, by blend, prepare the Nano-ZnO Sol of ambient-temp-stable; Bacteria cellulose superfine fibre bar is immersed to Nano-ZnO Sol, and dipping obtains bacteria cellulose B, takes out postlyophilization, stand-by; The collosol temperature that bacteria cellulose bar immerses is between 80 ~ 100 ℃, and dip time is 5 ~ 100min.
(4) bacteria cellulose B is put into amido zinc solution, reaction a period of time, form bacteria cellulose C, take out postlyophilization, then in 60-100 ℃ of thermal environment, place, stand-by; Amido zinc solution described in step (4) is the mixed liquor of zinc solution and amine aqueous solution, and in solution, zinc ion and amine ion concentration are 0.01mol/L; Bacteria cellulose B is 1:1 with the mass ratio of the amido zinc solution of putting into, 80 ~ 100 ℃ of reaction temperatures, and the reaction time is 24 ~ 72 hours.
Described zinc salt is any one in zinc nitrate, zinc acetate, zinc acetylacetonate or zinc chloride.Described amine aqueous solution is any one in hexa, urea, ammoniacal liquor, monoethanolamine, diethanol amine, triethanolamine solution.
(5) bacteria cellulose C is carried out to the coat of metal conductive processing of plating; Prepare the bacteria cellulose fibre with power generation performance, described metal is any one in Pt, Au, Cu, Al, Zn or Ag.Step (5) coat of metal conductive processing can be steam plating, vacuum sputtering, and magnetron sputtering and CVD method are processed.
The bacteria cellulose base generating fiber spinning that employing obtains obtains bacteria cellulose base generating yarn of the present invention.The yarn of one section of 10 centimeter length, under ultrasonic oscillation disposition, detects the current output signal of 50nA through galvanometer.
Embodiment 2
The preparation method of the bacteria cellulose base generating fiber of the present embodiment, comprises the steps:
(1) bacterial cellulose wet-coating after bleaching is placed between a pair of gripping roller, according to the speed feeding of 10 mm minutes; The diameter of the gripping roller using is 20mm.
(2) from the cellulose membrane of exporting between roller, through licker-in surface acupuncture, puncture at a high speed, isolate and combing effect, bacterial cellulose wet-coating is become to bacteria cellulose fibre; Bacteria cellulose fibre is processed through filter press press filtration, prepared bacteria cellulose superfine fibre bar; The moisture content of the bacteria cellulose super fiber of processing through press filtration is between 15%, and the diameter of superfine fibre is at 500nm, and superfine fibre length is between 200mm.
(3) configure respectively zinc solution and alkaline solution, by blend, prepare the Nano-ZnO Sol of ambient-temp-stable; Bacteria cellulose superfine fibre bar is immersed to Nano-ZnO Sol, and dipping obtains bacteria cellulose B, takes out postlyophilization, stand-by; The collosol temperature that bacteria cellulose bar immerses is between 80 ℃, and dip time is 100min.
(4) bacteria cellulose B is put into amido zinc solution, reaction a period of time, form bacteria cellulose C, take out postlyophilization, then in 60 ℃ of thermal environments, place, stand-by; Amido zinc solution described in step (4) is the mixed liquor of zinc solution and amine aqueous solution, and in solution, zinc ion and amine ion concentration are 0.01mol/L; Bacteria cellulose B is 1:1 with the mass ratio of the amido zinc solution of putting into, 80 ℃ of reaction temperatures, and the reaction time is 72 hours.
Described zinc salt is zinc nitrate, and described amine aqueous solution is hexa solution.
(5) bacteria cellulose C is carried out to the coat of metal conductive processing of plating; Prepare the bacteria cellulose fibre with power generation performance, described metal is Pt.Step (5) coat of metal conductive processing adopts steam electroplating method to process.
The bacteria cellulose base generating fiber spinning that employing obtains obtains bacteria cellulose base generating yarn of the present invention.The yarn of one section of 10 centimeter length, under ultrasonic oscillation disposition, detects the current output signal of 40nA through galvanometer.
Embodiment 3
The preparation method of the bacteria cellulose base generating fiber of the present embodiment, comprises the steps:
(1) bacterial cellulose wet-coating after bleaching is placed between a pair of gripping roller, according to the speed feeding of 00 m/ minute; The diameter of the gripping roller using is 3000mm.
(2) from the cellulose membrane of exporting between roller, through licker-in surface acupuncture, puncture at a high speed, isolate and combing effect, bacterial cellulose wet-coating is become to bacteria cellulose fibre; Bacteria cellulose fibre is processed through filter press press filtration, prepared bacteria cellulose superfine fibre bar; The moisture content of the bacteria cellulose super fiber of processing through press filtration is between 50000%, and the diameter of superfine fibre is at 10nm, and superfine fibre length is between 200nm.
(3) configure respectively zinc solution and alkaline solution, by blend, prepare the Nano-ZnO Sol of ambient-temp-stable; Bacteria cellulose superfine fibre bar is immersed to Nano-ZnO Sol, and dipping obtains bacteria cellulose B, takes out postlyophilization, stand-by; The collosol temperature that bacteria cellulose bar immerses is between 100 ℃, and dip time is 5min.
(4) bacteria cellulose B is put into amido zinc solution, reaction a period of time, form bacteria cellulose C, take out postlyophilization, then in 60-100 degree thermal environment, place, stand-by; Amido zinc solution described in step (4) is the mixed liquor of zinc solution and amine aqueous solution, and in solution, zinc ion and amine ion concentration are 0.01mol/L; Bacteria cellulose B is 1:1 with the mass ratio of the amido zinc solution of putting into, 100 ℃ of reaction temperatures, and the reaction time is 24 hours.
Described zinc salt is zinc acetate, and described amine aqueous solution is urea liquid.
(5) bacteria cellulose C is carried out to the coat of metal conductive processing of plating; Prepare the bacteria cellulose fibre with power generation performance, described metal is Au, and coat of metal conductive processing is that vacuum sputtering method is processed.
The bacteria cellulose base generating fiber spinning that employing obtains obtains bacteria cellulose base generating yarn of the present invention.The yarn of one section of 10 centimeter length, under ultrasonic oscillation disposition, detects the current output signal of 35nA through galvanometer.
Embodiment 4
The preparation method of the bacteria cellulose base generating fiber of the present embodiment, comprises the steps:
(1) bacterial cellulose wet-coating after bleaching is placed between a pair of gripping roller, according to the speed feeding of 50 m/ minutes; The diameter of the gripping roller using is 1000mm.
(2) from the cellulose membrane of exporting between roller, through licker-in surface acupuncture, puncture at a high speed, isolate and combing effect, bacterial cellulose wet-coating is become to bacteria cellulose fibre; Bacteria cellulose fibre is processed through filter press press filtration, prepared bacteria cellulose superfine fibre bar; The moisture content of the bacteria cellulose super fiber of processing through press filtration is between 10000%, and the diameter of superfine fibre is at 300nm, and superfine fibre length is between 100mm.
(3) configure respectively zinc solution and alkaline solution, by blend, prepare the Nano-ZnO Sol of ambient-temp-stable; Bacteria cellulose superfine fibre bar is immersed to Nano-ZnO Sol, and dipping obtains bacteria cellulose B, takes out postlyophilization, stand-by; The collosol temperature that bacteria cellulose bar immerses is between 95 ℃, and dip time is 80min.
(4) bacteria cellulose B is put into amido zinc solution, reaction a period of time, form bacteria cellulose C, take out postlyophilization, then in 80 ℃ of thermal environments, place, stand-by; Amido zinc solution described in step (4) is the mixed liquor of zinc solution and amine aqueous solution, and in solution, zinc ion and amine ion concentration are 0.01mol/L; Bacteria cellulose B is 1:1 with the mass ratio of the amido zinc solution of putting into, 95 ℃ of reaction temperatures, and the reaction time is 60 hours.
Described zinc salt is zinc acetylacetonate, and described amine aqueous solution is ammonia spirit.
(5) bacteria cellulose C is carried out to the coat of metal conductive processing of plating; Prepare the bacteria cellulose fibre with power generation performance, described metal is Cu, and coat of metal conductive processing can be that magnetically controlled sputter method is processed.
The bacteria cellulose base generating fiber spinning that employing obtains obtains bacteria cellulose base generating yarn of the present invention.The yarn of one section of 10 centimeter length, under ultrasonic oscillation disposition, detects the current output signal of 38nA through galvanometer.
Embodiment 5
The preparation method of the bacteria cellulose base generating fiber of the present embodiment, comprises the steps:
(1) bacterial cellulose wet-coating after bleaching is placed between a pair of gripping roller, according to the speed feeding of 10 m/ minutes; The diameter of the gripping roller using is 800mm.
(2) from the cellulose membrane of exporting between roller, through licker-in surface acupuncture, puncture at a high speed, isolate and combing effect, bacterial cellulose wet-coating is become to bacteria cellulose fibre; Bacteria cellulose fibre is processed through filter press press filtration, prepared bacteria cellulose superfine fibre bar; The moisture content of the bacteria cellulose super fiber of processing through press filtration is between 300%, and the diameter of superfine fibre is at 100nm, and superfine fibre length is between 800nm.
(3) configure respectively zinc solution and alkaline solution, by blend, prepare the Nano-ZnO Sol of ambient-temp-stable; Bacteria cellulose superfine fibre bar is immersed to Nano-ZnO Sol, and dipping obtains bacteria cellulose B, takes out postlyophilization, stand-by; The collosol temperature that bacteria cellulose bar immerses is between 85 ℃, and dip time is 30min.
(4) bacteria cellulose B is put into amido zinc solution, reaction a period of time, form bacteria cellulose C, take out postlyophilization, then in 70 ℃ of thermal environments, place, stand-by; Amido zinc solution described in step (4) is the mixed liquor of zinc solution and amine aqueous solution, and in solution, zinc ion and amine ion concentration are 0.01mol/L; Bacteria cellulose B is 1:1 with the mass ratio of the amido zinc solution of putting into, 90 ℃ of reaction temperatures, and the reaction time is 36 hours.
Described zinc salt is zinc chloride, and described amine aqueous solution is ethanolamine solutions.
(5) bacteria cellulose C is carried out to the coat of metal conductive processing of plating; Prepare the bacteria cellulose fibre with power generation performance, described metal is Al, and coat of metal conductive processing adopts CVD method to process.
The bacteria cellulose base generating fiber spinning that employing obtains obtains bacteria cellulose base generating yarn of the present invention.The yarn of one section of 10 centimeter length, under ultrasonic oscillation disposition, detects the current output signal of 42nA through galvanometer.
Embodiment 6
The preparation method of the bacteria cellulose base generating fiber of the present embodiment, comprises the steps:
(1) bacterial cellulose wet-coating after bleaching is placed between a pair of gripping roller, according to the speed feeding of 10m/ minute; The diameter of the gripping roller using is 1200mm.
(2) from the cellulose membrane of exporting between roller, through licker-in surface acupuncture, puncture at a high speed, isolate and combing effect, bacterial cellulose wet-coating is become to bacteria cellulose fibre; Bacteria cellulose fibre is processed through filter press press filtration, prepared bacteria cellulose superfine fibre bar; The moisture content of the bacteria cellulose super fiber of processing through press filtration is between 20000%, and the diameter of superfine fibre is at 30nm, and superfine fibre length is between 50mm.
(3) configure respectively zinc solution and alkaline solution, by blend, prepare the Nano-ZnO Sol of ambient-temp-stable; Bacteria cellulose superfine fibre bar is immersed to Nano-ZnO Sol, and dipping obtains bacteria cellulose B, takes out postlyophilization, stand-by; The collosol temperature that bacteria cellulose bar immerses is between 95 ℃, and dip time is 20min.
(4) bacteria cellulose B is put into amido zinc solution, reaction a period of time, form bacteria cellulose C, take out postlyophilization, then in 70 ℃ of thermal environments, place, stand-by; Amido zinc solution described in step (4) is the mixed liquor of zinc solution and amine aqueous solution, and in solution, zinc ion and amine ion concentration are 0.01mol/L; Bacteria cellulose B is 1:1 with the mass ratio of the amido zinc solution of putting into, 90 ℃ of reaction temperatures, and the reaction time is 52 hours.
Described zinc salt is zinc chloride, and described amine aqueous solution is diethanolamine solution.
(5) bacteria cellulose C is carried out to the coat of metal conductive processing of plating; Prepare the bacteria cellulose fibre with power generation performance, described metal is Ag, and step (5) coat of metal conductive processing is that magnetically controlled sputter method is processed.
The bacteria cellulose base generating fiber spinning that employing obtains obtains bacteria cellulose base generating yarn of the present invention.The yarn of one section of 10 centimeter length, under ultrasonic oscillation disposition, detects the current output signal of 38nA through galvanometer.
Embodiment 7
Bacteria cellulose by after bleaching, feeds between the gripping roller that a pair of diameter is 20mm according to the speed of 10mm.Then through the surperficial needle-like combing of the spiked roller through formation such as needle-like, superhard, elastic stainless steel silk or B alloy wire polishing wheels acupuncture, puncture at a high speed, isolate and combing effect, bacterial cellulose wet-coating is become to bacteria cellulose fibre.Bacteria cellulose super fiber moisture content is after treatment 80%, and diameter is 400nm, and length is 150mm.Then bacteria cellulose super fiber is immersed respectively to zinc solution and the alkaline solution of having prepared.Then by blend, prepare the Nano-ZnO Sol of ambient-temp-stable.By in the nano zine oxide colloidal sol of 80 degrees Celsius of the bacteria cellulose fibre immersions of processing through immersion liquid, through the immersions of 15 minutes, process, form bacteria cellulose fibre B.Bacteria cellulose B is put into the zincamide salting liquid of 80 degrees Celsius of constant temperature according to the mass ratio of 1:1, react and form bacteria cellulose fibre C after 36 hours.Bacteria cellulose fibre C is carried out after golden vacuum and steam plates 10 nanometered disposals obtaining bacteria cellulose base generating fiber and yarn.The yarn of one section of 10 centimeter length, under ultrasonic oscillation disposition, detects the current output signal of 50nA through galvanometer.
Embodiment 8
Bacteria cellulose by after bleaching, feeds between the gripping roller that a pair of diameter is 50mm according to the speed of 30mm.Then through the surperficial needle-like combing of the spiked roller through formation such as needle-like, superhard, elastic stainless steel silk or B alloy wire polishing wheels acupuncture, puncture at a high speed, isolate and combing effect, bacterial cellulose wet-coating is become to bacteria cellulose fibre.Bacteria cellulose super fiber moisture content is after treatment 68%, and diameter is 320nm, and length is 150mm.Then bacteria cellulose super fiber is immersed respectively to zinc solution and the alkaline solution of having prepared.Then by blend, prepare the Nano-ZnO Sol of ambient-temp-stable.By in the nano zine oxide colloidal sol of 90 degrees Celsius of the bacteria cellulose fibre immersions of processing through immersion liquid, through the immersions of 30 minutes, process, form bacteria cellulose fibre B.Bacteria cellulose B is put into the zincamide salting liquid of 85 degrees Celsius of constant temperature according to the mass ratio of 1:1, react and form bacteria cellulose fibre C after 48 hours.Bacteria cellulose fibre C is carried out after silver-colored vacuum and steam plates 10 nanometered disposals obtaining bacteria cellulose base generating fiber and yarn.The yarn of one section of 10 centimeter length, under ultrasonic oscillation disposition, detects the current output signal of 30nA through galvanometer.
Embodiment 9
Bacteria cellulose by after bleaching, feeds between the gripping roller that a pair of diameter is 80mm according to the speed of 50mm.Then through the surperficial needle-like combing of the spiked roller through formation such as needle-like, superhard, elastic stainless steel silk or B alloy wire polishing wheels acupuncture, puncture at a high speed, isolate and combing effect, bacterial cellulose wet-coating is become to bacteria cellulose fibre.Bacteria cellulose super fiber moisture content is after treatment 60%, and diameter is 250nm, and length is 150mm.Then bacteria cellulose super fiber is immersed respectively to zinc solution and the alkaline solution of having prepared.Then by blend, prepare the Nano-ZnO Sol of ambient-temp-stable.By in the nano zine oxide colloidal sol of 95 degrees Celsius of the bacteria cellulose fibre immersions of processing through immersion liquid, through the immersions of 40 minutes, process, form bacteria cellulose fibre B.Bacteria cellulose B is put into the zincamide salting liquid of 90 degrees Celsius of constant temperature according to the mass ratio of 1:1, react and form bacteria cellulose fibre C after 60 hours.Bacteria cellulose fibre C is carried out after copper vacuum and steam plates 20 nanometered disposals obtaining bacteria cellulose base generating fiber and yarn.The yarn of one section of 10 centimeter length, under ultrasonic oscillation disposition, detects the current output signal of 28nA through galvanometer.
Claims (7)
1. a preparation method for bacteria cellulose base generating fiber, is characterized in that, comprises the steps:
(1) bacterial cellulose wet-coating after bleaching is placed between a pair of gripping roller, according to the speed feeding of 10 mm ~ 100 m/ minutes;
(2) from the cellulose membrane of exporting between roller, through licker-in surface acupuncture, puncture at a high speed, isolate and combing effect, bacterial cellulose wet-coating is become to bacteria cellulose fibre; Bacteria cellulose fibre is processed through filter press press filtration, prepared bacteria cellulose superfine fibre bar;
(3) configure respectively zinc solution and alkaline solution, by blend, prepare the Nano-ZnO Sol of ambient-temp-stable; Bacteria cellulose superfine fibre bar is immersed to Nano-ZnO Sol, and dipping obtains bacteria cellulose B, takes out postlyophilization, stand-by;
(4) bacteria cellulose B is put into amido zinc solution, described amido zinc solution is the mixed liquor of zinc solution and amine aqueous solution, reaction a period of time, form bacteria cellulose C, and take out postlyophilization, then in 60-100 ℃ of thermal environment, place, stand-by;
(5) bacteria cellulose C is carried out to the coat of metal conductive processing of plating; Prepare the bacteria cellulose fibre with power generation performance, described metal is any one in Pt, Au, Cu, Al, Zn or Ag.
2. the preparation method of bacteria cellulose base generating fiber according to claim 1, is characterized in that: the diameter of the gripping roller using in step (1) is 20 ~ 3000mm.
3. the preparation method of bacteria cellulose base generating fiber according to claim 2, is characterized in that: the diameter of the gripping roller using in step (1) is 30 ~ 300mm.
4. the preparation method of bacteria cellulose base generating fiber according to claim 1, is characterized in that: the collosol temperature that in step (3), bacteria cellulose superfine fibre bar immerses is between 80 ~ 100 ℃, and dip time is 5 ~ 100min.
5. the preparation method of bacteria cellulose base generating fiber according to claim 1, is characterized in that: in the amido zinc solution described in step (4), zinc ion and amine ion concentration are 0.01mol/L; Bacteria cellulose B is 1:1 with the mass ratio of the amido zinc solution of putting into, 80 ~ 100 ℃ of reaction temperatures, and the reaction time is 24 ~ 72 hours.
6. the preparation method of bacteria cellulose base generating fiber according to claim 1, is characterized in that: step (5) coat of metal conductive processing is selected from steam plating, and magnetron sputtering and CVD method are processed.
7. a preparation method for bacteria cellulose base generating yarn, is characterized in that: adopt bacteria cellulose base generating fiber spinning claimed in claim 1 to obtain yarn.
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102392344A (en) * | 2011-07-08 | 2012-03-28 | 中国科学院理化技术研究所 | Method for preparing medical high molecular material by magnetron sputtering technology |
| CN102391535A (en) * | 2011-09-09 | 2012-03-28 | 南京理工大学 | Bacterial cellulose conductive thin film and preparation method thereof |
| CN102634068A (en) * | 2012-04-25 | 2012-08-15 | 东华大学 | Method and device for preparing functional nanoparticle/bacterial cellulose composite membranes |
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| JP特开2011-167226A 2011.09.01 |
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