Whisker-zoo li Carbon Nanotubes (WCNT)

1. Cov ntaub ntawv tseem ceeb ntawm cov khoom

Whisker-zoo li Carbon Nanotubes (WCNT) yog ib qho tshiab ib qho -dimensional nanocarbon cov ntaub ntawv nrog ib qho tshwj xeeb whisker-zoo li morphology, uas yog qhov txawv ntawm cov pa roj carbon nanotubes. Tsis zoo li qhov sib txawv winding qauv ntawm cov tsoos carbon nanotubes, WCNT yog tsim los ntawm cov nplooj ntawv graphene zoo heev uas loj hlob linearly, tsim cov qauv zoo ib yam thiab tsis tu ncua whisker nrog siab crystallinity. Raws li cov khoom siv ua haujlwm siab, WCNT tsis yog- lom, tsis muaj ntxhiab, thiab tshuaj lom neeg ruaj khov, nrog kev sib raug zoo nrog ntau yam ntaub ntawv matrix (polymer, hlau, ceramics, thiab lwm yam). Cov khoom lag luam muaj nyob rau hauv ntau yam kev qhia tshwj xeeb, thiab tuaj yeem ua raws li cov kev xav tau tshwj xeeb, uas yog dav siv nyob rau hauv siab - cov khoom siv ua haujlwm kawg thiab kev txhim kho kev lag luam, ua tiav daim ntawv thov sib txawv ntawm cov tsoos carbon nanomaterials hauv siab - cov xwm txheej raug.

2. Core Performance Parameters

Qhov sib txawv ntawm cov qauv ntsuas kev ua tau zoo yav dhau los tau qhia yav dhau los, qhov tseem ceeb ntawm kev ua haujlwm ntawm WCNT tsom rau qhov siab tshaj plaws, kev tswj hwm thiab kev hloov pauv ntawm qhov chaw, thiab cov ntsuas tseem ceeb yog raws li hauv qab no (tag nrho ua tau raws li cov qauv thoob ntiaj teb rau siab -kawg nanomaterials):

- Crystallinity: Ntau dua lossis sib npaug li 98.5%, ua kom ruaj khov ntawm cov khoom siv hluav taws xob thiab cov khoom siv hluav taws xob;

- Aspect ratio: 800-2500: 1 (kho tsis tu ncua), uas tuaj yeem hloov kho tau yooj yim raws li qhov xav tau ntawm cov ntawv thov sib txawv;

- Kais ceev: 0.12-0.18 g / cm³, yooj yim rau disperse thiab txheej txheem, txo qhov nyuaj ntawm daim ntawv thov tom ntej;

- Thermal decomposition temperature: Ntau dua los yog sib npaug li 600℃(hauv huab cua), nrog rau siab zoo heev - kub stability, haum rau siab - kub ua haujlwm scenarios;

- Tshuaj stability: Insoluble nyob rau hauv muaj zog acid thiab alkali (tshwj tsis yog rau tshwj xeeb hloov khoom), corrosion-resistant, thiab yuav siv tau nyob rau hauv hnyav ua hauj lwm ib puag ncig;

- Cov cheeb tsam tshwj xeeb: 180-260 m² / g, muab qhov chaw txaus txaus rau kev sib xyaw matrix thiab kev hloov kho ua haujlwm.

3. Volume Resistivity

Lub ntim resistivity ntawm WCNT yog ib qho ntawm nws cov kev ua haujlwm tseem ceeb, uas yog ze ze rau nws cov qauv kev ntxhib los mos thiab siab crystallinity. Lub ntim resistivity ntawm ntshiab WCNT hmoov yog 1.2 × 10⁻³ - 3.5 × 10⁻³ Ω·cm, uas yog qis dua li cov pa roj carbon nanotubes (5 × 10⁻³ - 1 × 10⁻² Ω·cm), uas qhia tau zoo heev hluav taws xob conductivity. Thaum WCNT ntxiv rau cov khoom siv matrix ua cov khoom siv ntxiv, qhov ntim ntawm cov khoom sib xyaw tuaj yeem hloov kho tau yooj yim nyob rau hauv thaj tsam ntawm 10⁰ - 10⁹ Ω·cm: thaum siv hauv cov khoom siv hluav taws xob, qhov ntim tiv thaiv tuaj yeem tswj tau qis dua 10² Ω·cm; Thaum siv hauv cov khoom siv tshuaj tiv thaiv kab mob, qhov ntim tiv thaiv tuaj yeem khaws cia ntawm 10⁶ - 10⁹ Ω·cm, uas tuaj yeem ua tau raws li qhov sib txawv conductive thiab antistatic yuav tsum tau ntawm ntau yam kev lag luam scenarios.

4. Nto Resistivity

Qhov kev tiv thaiv nto ntawm WCNT cuam tshuam los ntawm nws lub xeev nto, dispersion uniformity thiab daim ntawv thov, thiab nws cov kev ua tau zoo yog ruaj khov thiab tswj tau. Qhov kev tiv thaiv nto ntawm WCNT zaj duab xis (thickness 5{10}}10 μm) npaj los ntawm lub tshuab nqus tsev pom yog 2.8 × 10⁻² - 7.5 × 10⁻² Ω / sq, uas muaj kev ua haujlwm zoo heev. Thaum siv rau saum npoo ntawm cov ntaub ntawv (xws li coatings, zaj duab xis), qhov saum npoo ntawm cov khoom hloov kho tuaj yeem hloov kho ntawm 10¹ - 10⁸ Ω/sq: rau electromagnetic shielding coatings, qhov saum npoo resistivity yog tswj hauv qab 10³ Ω / sq los xyuas kom muaj kev tiv thaiv zoo; rau high-precision antistatic nto, qhov saum npoo resistivity yog khaws cia ntawm 10⁵ - 10⁸ Ω / sq, tsis txhob cuam tshuam cov hluav taws xob zoo li qub thaum tsis cuam tshuam rau kev siv ntawm cov khoom.

5. Dispersion

Lub dispersion ntawm WCNT yog qhov zoo dua li cov pa roj carbon nanotubes, uas yog vim nws cov qauv whisker tshwj xeeb thiab cov tshuab hloov kho saum npoo av (sib txawv ntawm cov txheej txheem hloov kho saum npoo av dhau los). WCNT txais yuav txoj kev hloov kho uas tsis yog-covalent nto, uas tsis ua rau lub ntsej muag lub ntsej muag thaum txhim kho kev ua haujlwm saum npoo av, ua rau nws muaj qhov zoo tshaj plaws dispersion nyob rau hauv ntau yam xov xwm: hauv dej-raws li xov xwm, dispersion tuaj yeem ua tiav li ntawm 20-40 feeb los ntawm kev sib xyaw ua ke (tsis xav tau kev kho ultrasonic), thiab qhov kev sib cais-12 lub hlis ruaj khov tuaj yeem ncav cuag 8. nyob rau hauv cov roj-raws li xov xwm (xws li ethanol, acetone, epoxy resin), nws muaj peev xwm yuav uniformly dispersed yam tsis tau ntxiv dispersants ntxiv, thiab lub dispersion xeev yuav tsum tau khaws cia rau ntau tshaj 6 lub hlis. Tsis tas li ntawd, WCNT muaj qhov sib txawv zoo sib xws hauv ntau yam khoom siv matrix, thiab tuaj yeem tsim cov khoom siv hluav taws xob / thermal conductive nrog ib qho me me ntxiv (0.1-2.0 wt%), zam qhov teeb meem ntawm cov khoom lag luam tsis zoo los ntawm agglomeration.

6. Lub cev muaj zog

Lub cev lub cev ntawm WCNT muaj feem cuam tshuam nrog nws cov whisker-zoo li microstructure, qhia pom tseeb qhov zoo ntawm lub teeb yuag, siab zog thiab hnav tsis kam, uas tsis rov ua dua nrog cov cuab yeej cuab tam yav dhau los:

- Qhov ceev: 1.35-1.45 g / cm³, uas yog 1/6 ntawm cov hlau thiab 1/2 ntawm txhuas, ua rau nws yog ib qho khoom siv ua haujlwm zoo tshaj plaws;

- Hardness: 85-92 HRC (Vickers hardness), siab tshaj cov pa roj carbon nanotubes thiab conductive carbon dub, nrog zoo heev hnav tsis kam;

- Flexibility: Lub zog dabtsi yog khoov mus txog 35-45 GPa, uas tuaj yeem khoov duav tsis tu ncua, haum rau cov khoom siv hluav taws xob hloov tau yooj yim thiab cov khoom siv sib xyaw ua ke;

- Particle loj faib: D50=15-30 μm, D90 Tsawg dua los yog sib npaug li 50 μm, cov khoom loj me me, uas yog qhov zoo rau kev sib cais thiab kev ua haujlwm;

- Cov ntsiab lus noo noo: Tsawg dua lossis sib npaug li 0.3%, tsis muaj qhov nqus dej noo, ua kom muaj kev ruaj khov thaum khaws cia thiab siv.

7. Daim ntawv thov Scenarios thiab Adaptable Industries

Kev tsom mus rau cov xwm txheej thov tshiab uas tsis tau hais ua ntej, WCNT feem ntau yog hloov mus rau siab -precision, siab-kev ua tau zoo thiab siab-xav tau kev lag luam, thiab cov kev thov tshwj xeeb yog raws li hauv qab no:

- High-precision electronics kev lag luam: Siv nyob rau hauv kev npaj ntawm cov ntaub ntawv hloov tau yooj yim rau cov ntaub ntawv hloov tau yooj yim, cov nplaum nplaum rau cov ntim ntim, thiab cov ntaub ntawv thermal conductive interface rau siab - cov chips kawg, daws cov teeb meem ntawm kev ua haujlwm tsis zoo, tsis tshua muaj thermal conductivity thiab tsis zoo ntawm cov khoom siv ib txwm muaj;

- Kev lag luam tsheb tshiab lub zog: Siv rau lub roj teeb diaphragm hloov kho (kev txhim kho thermal stability thiab ion conductivity), antistatic txheej ntawm lub roj teeb pob, thiab lub teeb yuag qhov chaw ntawm lub tsheb lub cev, pab txhim kho kev nyab xeeb thiab kev tiv thaiv ntawm lub zog tshiab;

- Siab-kev lag luam kho mob kawg: Siv rau hauv kev npaj cov khoom siv kho mob catheters, tshuaj tua kab mob kev hnav khaub ncaws (tso rau ntawm thaj chaw siab tshwj xeeb thiab tshuaj lom neeg ruaj khov ntawm WCNT), thiab cov khoom siv kho mob, uas tsis yog - tshuaj lom thiab sib haum nrog tib neeg cov ntaub so ntswg;

- Precision instrumentation kev lag luam: Siv rau antistatic txheej ntawm precision sensors, conductive Cheebtsam ntawm siab -precision meters, thiab electromagnetic shielding plhaub ntawm cov twj paj nruag, xyuas kom meej stability thiab raug ntawm cov cuab yeej ua hauj lwm;

- Kev lag luam textile Advanced: Siv nyob rau hauv kev hloov kho ntawm siab -kev ua tau zoo conductive textiles, xws li anti- cov khaub ncaws ua hauj lwm zoo li qub rau kev cob qhia precision, electromagnetic shielding textiles rau kev siv tub rog, thiab ntse hnav conductive fabrics, uas nyiam hnav thiab ntev - ua haujlwm ntev.

8. Txoj Kev Taw Qhia

Qhov kev ua tau zoo ntawm WCNT yog muab los ntawm nws qhov tshwj xeeb whisker-zoo li microstructure thiab txoj hauv kev loj hlob ntawm graphene nplooj ntawv, uas txawv ntawm txoj cai loj hlob ntawm cov pa roj carbon nanotubes. Kev npaj ntawm WCNT tau txais kev txhim kho lub txaj txaj tshuaj vapor deposition (CVD) txoj cai: nyob rau hauv qhov kev txiav txim ntawm ib qho tshwj xeeb catalyst (sib txawv los ntawm cov catalyst yav dhau los), cov pa roj carbon qhov chaw (xws li methane, ethylene) yog decomposed rau hauv carbon atoms ntawm ib tug kub ntawm 800 - 1000℃cov pa roj carbon monoxide , thiab nyob rau hauv ib tug catalyst kab. taw qhia kev taw qhia ntawm lub catalyst, tsim ib tug whisker-zoo li qauv tsim los ntawm heev oriented graphene nplooj ntawv.

Kev taw qhia ntawm cov ntawv graphene ua rau txoj kev xa hluav taws xob ntawm WCNT smoother (txo cov hluav taws xob tawg), yog li qhia cov hluav taws xob zoo heev; cov qauv linear whisker ua rau muaj kev ntxhov siab kom sib npaug ntawm cov kev taw qhia axial, yog li nws muaj zog txhua yam thiab toughness; lub siab crystallinity ntawm cov txheej txheem whisker txo cov txheej txheem tsis xws luag, yog li txhim kho cov tshuaj stability thiab siab -kub tsis kam ntawm WCNT. Tsis tas li ntawd, lub hauv paus ntsiab lus ntawm kev hloov kho saum npoo ntawm WCNT yog ua raws li qhov tsis yog -covalent daim ntawv cog lus ua ke ntawm cov pawg ua haujlwm saum npoo av thiab cov khoom siv hloov pauv, uas khaws cov qauv tsim thiab kev ua tau zoo ntawm WCNT thaum txhim kho nws qhov sib txawv thiab sib haum.

9. Kev Tswj Xyuas Zoo

Tsim kom muaj tag nrho - txheej txheem tswj kev ua tau zoo sib txawv ntawm yav dhau los, suav nrog tag nrho cov txheej txheem los ntawm cov khoom siv raw khoom nkag mus rau cov khoom tiav tiav, nrog cov qauv tswj xyuas nruj thiab cov txheej txheem kuaj zoo:

- Cov khoom siv raw khoom tuaj xyuas: Rau cov pa roj carbon monoxide, catalyst, modifier thiab lwm yam khoom siv raw, 100% sampling kev soj ntsuam yog ua, tsom rau kev ntsuam xyuas qhov purity, particle loj thiab kev ua ntawm raw cov ntaub ntawv, thiab tsis tsim nyog raw cov ntaub ntawv yog txwv tsis pub nkag mus rau hauv cov khoom txuas;

- Hauv - txheej txheem kev tswj hwm zoo: Teem 6 qhov tseem ceeb ntawm kev soj ntsuam zoo hauv cov txheej txheem tsim khoom (catalyst npaj, carbon decomposition, oriented kev loj hlob, purification, deg modification, tiav cov khoom shaping), thiab ntsuam xyuas cov cim tseem ceeb (crystallinity, nam piv, dispersion) ntawm semi- tiav cov khoom nyob rau hauv lub sij hawm ntawm kev ua tau zoo, thiab kho lub sij hawm ntawm kev ua tau zoo

- Kev tshuaj xyuas cov khoom tiav: Txhua batch ntawm cov khoom tiav ua tiav 100% tag nrho- kev tshuaj xyuas cov khoom, suav nrog kev ua haujlwm tsis zoo, kev tiv thaiv, dispersion, lub cev muaj zog, thiab lwm yam, thiab tus nqi tsim nyog ntawm cov khoom tiav yog tswj nruj dua 99.9%; Cov khoom tsis tsim nyog tau siv dua thiab rov ua dua tshiab, thiab yuav tsis raug xa mus;

- Kev taug qab zoo: Tsim kom muaj cov khoom lag luam zoo taug qab, muab tus lej tshwj xeeb rau txhua pawg ntawm cov khoom lag luam, sau cov khoom tsim, tshuaj xyuas thiab xa cov ntaub ntawv ntawm cov khoom, thiab taug qab cov txiaj ntsig siv ntawm cov khoom hauv cov neeg siv khoom, txhawm rau txhawm rau txhim kho cov khoom lag luam thiab kev tswj kom zoo.

10. Cov ntaub ntawv xeem

Cov ntaub ntawv xeem ntawm WCNT tau txais los ntawm thoob ntiaj teb cov cuab yeej ntsuas qib siab thiab cov txheej txheem kev sim (sib txawv ntawm cov ntaub ntawv xeem dhau los), ua kom muaj tseeb thiab muaj cai. Cov ntaub ntawv xeem tseem ceeb yog raws li hauv qab no:

- Crystallinity test: Tested by X-ray diffraction (XRD), qhov diffraction peak siv piv yog ntau dua los yog sib npaug rau 0.98, thiab crystallinity yog 98.5-99.2%;

- Resistivity test: Tested los ntawm plaub- kev sojntsuam txoj kev (GB/T 15662-1995), lub ntim resistivity yog 1.2 × 10⁻³ - 3.5 × 10⁻³ Ω·cm, thiab qhov saum npoo ntawm cov zaj duab xis yog 2.8 × 10⁻² ;

- Dispersion test: kuaj los ntawm laser particle size analyzer thiab optical microscope, dispersion uniformity nyob rau hauv dej-raws li xov xwm yog ntau tshaj los yog sib npaug rau 92%, thiab agglomeration tus nqi tsawg dua los yog sib npaug li 5% tom qab 8 lub hlis ntawm kev cia;

- Siab- ntsuas qhov kub thiab txias: Kev ntsuas los ntawm thermogravimetric analyzer (TGA), qhov poob qis dua los yog sib npaug li 5% ntawm 600℃hauv huab cua, thiab qhov poob qis tsawg dua lossis sib npaug li 3% ntawm 800℃hauv inert gas;

- Kev ntsuas kev ua tau zoo: Kev ntsuas los ntawm lub tshuab ntsuas thoob ntiaj teb, lub zog tensile yog 220-260 GPa, lub zog khoov yog 35-45 GPa, thiab hardness yog 85-92 HRC;

- Purity test: Tested by inductively coupled plasma mass spectrometry (ICP-MS), cov ntsiab lus hlau impurity tsawg dua los yog sib npaug rau 30 ppm, thiab purity yog 99.5-99.8%.

11. Kev ntim khoom

Ua ke nrog cov khoom siv lub cev thiab tshuaj lom neeg ntawm WCNT (moisture- pov thawj, tiv thaiv- agglomeration) thiab cov neeg siv khoom xav tau, txoj kev ntim khoom yog tsim los rau kev tshawb fawb, kev nyab xeeb thiab yooj yim, uas tsis rov ua dua nrog cov lus qhia txog kev ntim khoom dhau los:

- Cov ntim sab hauv: Siv ob npaug- txheej lub tshuab nqus tsev aluminium foil hnab (khoom noj- qib, tsis- lom thiab tsis qab), uas tuaj yeem cais cov huab cua thiab noo noo, tiv thaiv cov khoom los ntawm absorbing noo noo thiab agglomerating; lub hnab sab hauv yog nruab nrog lub desiccant thiab oxygen absorber, thiab sealing kev ua tau zoo, ua kom ruaj khov ntawm cov khoom thaum khaws cia;

- Cov ntim sab nrauv: Siv siab- lub zog corrugated cartons (load-cov kabmob Ntau dua lossis sib npaug li 50 kg) nrog kev poob siab- pov thawj npuas sab hauv, uas tuaj yeem tiv thaiv cov khoom puas vim kev sib tsoo thaum lub sijhawm thauj mus los; lub thawv sab nrauv yog luam tawm nrog cov ntaub ntawv cov khoom (batch tooj, specification, hnyav, cia tej yam kev mob) thiab ceeb toom cov paib (ntws - pov thawj, anti- kev sib tsoo, tsis yog - lom);

- Ntim specifications: Muab ntau yam qauv specifications, xws li 100g/bag, 500g/bag, 1kg/bag, 5kg/bag, 20kg/carton; kuj tseem tuaj yeem muab cov khoom ntim tshwj xeeb raws li cov neeg siv khoom xav tau (xws li 25kg / carton, 50kg / carton);

- Cov lus qhia khaws cia: luam tawm ntawm lub ntim sab nrauv, cov khoom yuav tsum tau muab cia rau hauv qhov chaw txias, qhuav thiab cua txias (kub 5-30 degree, txheeb ze cov av qis dua lossis sib npaug li 60%), kom deb ntawm hluav taws kub, kub thiab corrosive, thiab lub txee lub neej yog 18 lub hlis nyob rau hauv qhov chaw cia khoom.

12. Lub Tuam Txhab Lub Zog Taw Qhia

Tsom ntsoov rau lub zog tshiab tseem ceeb uas tsis tau hais ua ntej, lub tuam txhab lub zog yog qhov tseem ceeb hauv kev tsim kho thev naus laus zis, cov cuab yeej siv siab tshaj plaws, pab pawg R & D, thiab cov neeg siv khoom pabcuam, qhia txog kev sib tw tseem ceeb hauv WCNT teb:

- Kev tsim kho thev naus laus zis muaj zog: Lub tuam txhab muaj kev ywj pheej ntawm kev txawj ntse txoj cai ntawm WCNT taw qhia kev loj hlob thev naus laus zis thiab tsis yog-cov thev naus laus zis hloov kho qhov chaw, thiab tau txais 18 daim ntawv tsim khoom thiab 26 cov qauv siv hluav taws xob patents ntsig txog WCNT (sib txawv ntawm cov ntsiab lus patent yav dhau los); nws tau koom nrog hauv kev tsim ntawm 2 cov qauv kev lag luam rau cov nplawm-zoo li cov pa roj carbon nanotubes, ua rau kev txhim kho kev lag luam;

- Cov khoom siv ntau lawm: Nruab nrog 3 txheej ntawm cov khoom siv tsis siv neeg ntab txaj CVD cov kab ntau lawm (sib txawv los ntawm cov kab ntau lawm), nrog rau ib xyoos twg muaj peev xwm ntawm 1500 tons; cov txheej txheem ntau lawm txais tag nrho - tsis siv neeg ntse tswj, nrog kev tsim khoom siab thiab ruaj khov khoom sib xws; cov khoom siv purification thiab hloov kho yog imported los ntawm lub teb chaws Yelemees, kom ntseeg tau lub siab purity thiab zoo heev dispersion ntawm cov khoom;

- R&D pab pawg muaj zog: Pab pawg R&D yog tsim los ntawm cov kws tshaj lij hauv nanomaterial science, chemical engineering, khoom siv thiab lwm yam haujlwm, suav nrog 12 tus kws kho mob, 28 tus tswv, thiab 5 tus kws tshaj lij engineers nrog ntau tshaj 20 xyoo ntawm kev paub hauv nanomaterial teb; nws tau tsim ib lub koom haum R&D nrog 3 zoo-cov tsev kawm qib siab paub, tsom mus rau kev tshawb fawb thiab kev tsim kho ntawm WCNT cov khoom tshiab thiab cov ntawv thov tshiab;

- Kev ntsuas lub zog: Lub tuam txhab muaj lub chaw kuaj xyuas kev tshaj lij ntawm 1200 square metres, nruab nrog cov cuab yeej ntsuas thoob ntiaj teb qib siab (XRD, TEM, plaub- sojntsuam tester, TGA, thiab lwm yam), suav nrog txhua yam khoom ntsuas ntawm WCNT, thiab qib ntsuas yog nyob rau qib siab thoob ntiaj teb;

- Kev Pabcuam Cov Neeg Siv Khoom: Tsim ib qho - nres kev pabcuam cov neeg siv khoom, muab kev sib tham txog kev tshaj lij, kev sim kuaj dawb, ntawm -kev qhia kev qhia hauv chaw thiab lwm yam kev pabcuam; pab neeg pabcuam cov neeg siv khoom teb tsis pub dhau 12 teev, thiab pab pawg kws tshaj lij tuaj yeem ncav cuag tus neeg siv khoom lub xaib hauv 48 teev los daws cov teeb meem ntawm daim ntawv thov ntawm cov khoom; nws tau tsim lub sijhawm ntev - kev sib raug zoo nrog ntau dua 50 lub ntiaj teb siab -kawg kev lag luam, suav nrog Europe, Amelikas, Asia thiab lwm thaj chaw;

- Kev tiv thaiv ib puag ncig lub zog: Lub tuam txhab ua raws li kev tsim khoom ntsuab, siv lub zog- txuag thiab emission- txo cov tshuab tsim tawm, thiab cov roj pov tseg, dej khib nyiab thiab cov khoom pov tseg uas tsim tawm hauv cov txheej txheem tsim tawm tag nrho raws li lub teb chaws emission qauv; nws tau dhau ISO14001 ib puag ncig kev tswj hwm daim ntawv pov thawj thiab ISO45001 kev ua haujlwm kev noj qab haus huv thiab kev tswj hwm kev nyab xeeb daim ntawv pov thawj, paub txog kev sib koom tes ntawm kev tsim khoom thiab kev tiv thaiv ib puag ncig.

Cim npe nrov: whisker-zoo li carbon nanotubes, Tuam Tshoj whisker-zoo li carbon nanotubes manufacturers, lwm tus neeg, Hoobkas