Ikwirakwizwa rya graphene ryanyerera nka oatme yumunsi w'ejo, umusemburo uhumura neza, kandi wino "itajegajega" iratuza vuba kuruta gahunda zawe zo muri wikendi - mu buryo butunguranye umushinga wawe wo guca ibintu bisa nkibirunga bya siyansi.
Koresha surfactants ikwiye, ihuza polarite ya solvent, hanyuma ukoreshe sonic igenzurwa; hanyuma ugenzure itandukanyirizo rihamye hamwe na zeta - ibizamini bishoboka, nkuko byasabwe naKamere Nanotehnologiya graphene itunganya raporo.
Impamvu zitera graphene agglomeration nuburyo bwiza bwo gukwirakwiza
Graphene ikunda guhurira hamwe kubera imbaraga zikomeye za der der Waals hamwe nubuso bunini bwihariye. Igenzura ryiza, ibishishwa bikwiye, hamwe ningufu zingirakamaro zitezimbere cyane.
Ba injeniyeri bagomba guhuza uburyo bwa mehaniki, ultrasonic, na chimique. Guhitamo neza imbaraga, ubushyuhe, hamwe nibitekerezo bifasha kubona ituze rya graphene ihamye, nziza, kandi isubirwamo.
1. Impamvu nyamukuru zitera guteranya
Impapuro zegeranye za graphene zikururana kandi zigakora uduce. Ifu yumye yegeranya vuba mugihe cyo kubika, gutwara, no kugaburira muri sisitemu y'amazi.
- Urupapuro rukomeye - urupapuro rukurura
- Ubuso bwihariye
- Ubushuhe bubi bwambere kubishobora
2. Kunoza ibipimo byo gukwirakwiza ultrasonic
Gukoresha imbaraga za ultrasonic, uburyo bwa pulse, nigihe birashobora kugabanya cyane ingano yingirakamaro nta kwangirika gukomeye kwa graphene.
- Hindura amplitude hamwe nizunguruka zakazi
- Kugenzura ubushyuhe bwiyongera hamwe no gukonja
- Koresha intambwe igenda yiyongera kugirango wirinde - exfolisiyoneri
3. Guhitamo ibikoresho bikwiranye na laboratoire
Laboratoire zirashobora gukoresha ultrasonic homogenizers, mugihe imirongo yicyitegererezo ikenera imbaraga nyinshi no kuvanaho ubushyuhe kugirango ibisubizo bihamye.
- Laboratoire Yubushobozi Bwinshi Ultrasonic Sonochemie 20kHz Ultrasonic Homogenizer yo Gukwirakwiza Ikigereranyo cyo Kuvanga Gukuramokuri R&D
- Ubushobozi Bwinshi 20KHz Inganda Ultrasonic Metal Melt Processor yo Kuvura Amazi ya AluninumKuri Sisitemu, Ubushyuhe - Sisitemu
4. Imfashanyigisho zitunganijwe: surfactants na polymer binders
Surfactants hamwe na - molekulari zihuza adsorb hejuru ya graphene, hejuru yubutaka bwo hasi, no guhagarika re - agglomeration mugihe na sonic.
| Ubwoko bw'inyongera | Uruhare nyamukuru |
|---|---|
| Nonionic surfactant | Itezimbere no kwanga |
| Anionic surfactant | Itanga kwanga electrostatike |
| Amazi - gushonga polymer | Yongera ubwiza no gutuza |
Guhitamo ibishishwa bikwiye hamwe na surfactants zo gukwirakwiza graphene ihamye
Gukemura ibibazo bya polarite, guhagarara hejuru, hamwe no guteka bihitamo ubuziranenge bwo gutatanya. Guhuza ingufu za graphene zo hejuru no gukoresha surfactants zikwiye zitanga umusaruro muremure - igihe kirekire.
Abakoresha bagomba kuringaniza umutekano, ikiguzi, no gukama umuvuduko, hanyuma neza - guhuza ubwoko bwa surfactant ubwoko nurwego rwo gutwikira, wino, cyangwa porogaramu zikomatanya.
1. Kugereranya sisitemu isanzwe
Amazi, NMP, DMF, na alcool byerekana ingaruka zitandukanye zo gutatanya. Imbonerahamwe ikurikira iragereranya ibipimo ngenderwaho bivuye mubizamini bya laboratoire.
2. Guhitamo surfactants kumazi systems sisitemu
Amazi ni meza kandi ahendutse ariko akenera ibintu byiza kugirango atsinde amazi mabi. Ubwoko bwa Nonionic cyangwa anionic mubusanzwe butanga ibyiza, bisukuye.
- Reba uburyo bukomeye bwa micelle (CMC)
- Irinde surfactants ifuro cyane murwego rwo hejuru
- Kugenzura imikorere na pH biguma mubishushanyo mbonera
3. Guhitamo umusemburo wino wambara hamwe
Sisitemu ya wino igomba kuringaniza ibintu, igihe cyo kumisha, hamwe no guhuza ibice. Imvange ivanze akenshi itanga ubucuruzi bwiza -.
| Umuti | Ibyiza | Gukoresha bisanzwe |
|---|---|---|
| NMP | Ikwirakwizwa rikomeye, ingingo yo guteka cyane | Filime zo hejuru |
| Ethanol / amazi | Uburozi buke, gukama vuba | Irangi |
| Propylene glycol | Kuringaniza neza, impumuro nke | Kwambara |
4. Guhuza inyongeramusaruro hamwe nubunini bugenewe
Gutatana neza bikeneye guhagarara neza. Huza imiti ya ultrasonic hamwe ninyongera zibereye nkaImikorere ihamye Ultrasonic Homogenizer Kuri Nano Graphene Ikwirakwizwa no Gukuramo CBDkugenzura nano - ingano yubunini.
- Ubuso burebure busaba dosiye yinyongera
- Irinde kurenza - gupakira, bishobora kugabanya ubworoherane
- Koresha ibipimo by'ubunini kugirango uyobore impinduka
Kwirinda ubutayu no gukomeza igihe kirekire - ituze ryigihe muri graphene
Graphene ikunda gutuza mugihe bitewe nubucucike butandukanye. Kugenzura neza imvugo, kugabanya ingano yubunini, hamwe nububiko bwububiko bifasha gukomeza gutatana neza.
1. Kugenzura ibipimo by'ubunini bikwirakwizwa
Ingano ntoya kandi yoroheje ingero zingana. Huza gushungura, kuyungurura, hamwe na sonication nziza kugirango ukureho agglomerates nini.
- Gupima D50 na D90 buri gihe
- Ongera utatanye ubufindo buva hanze
2. Guhindura ibishishwa hamwe na rheologiya
Kugabanuka kwijimye no gukata gake behavior imyitwarire yoroheje irashobora gufata graphene muguhagarika idakoze amazi menshi cyane kuburyo atabikora.
| Guhindura | Ingaruka nyamukuru |
|---|---|
| Ibikomoka kuri selile | Ongera hasi - shear viscosity |
| Ubunini bwa Acrylic | Kunoza ububiko |
3. Kubika no re - imyitozo yo gutatanya
Ubike gutatanya ku bushyuhe butajegajega, irinde kunyeganyega gukomeye, kandi ushushanye re - kuvanga intambwe mbere yo gukoresha kugirango ugarure uburinganire.
- Koresha ibikoresho bifunze, bidasobanutse
- Koresha ubwitonzi bworoheje mbere yumusaruro
Issues Ibibazo bisanzwe bihuza hagati ya graphene ikwirakwizwa na matrices ya polymer
Guhuza nabi bitera gutandukana, imbaraga zumukanishi, hamwe nubushobozi buke. Kuvura isura no guhitamo matrix birashobora gukemura ibibazo byinshi bisanzwe.
1. Imbaraga zo hejuru zidahuye
Iyo imbaraga za graphene zubuso butandukanye cyane na polymer, guhanagura ni bibi kandi igiteranyo kibumbiye hamwe.
- Koresha graphene ikora kuri polar polymers
- Ongeramo ibikoresho byo guhuza kugirango utezimbere ubumwe
2. Ingaruka mbi kumiterere yubukanishi
Gupakira nabi cyangwa gutatanya birashobora gutera ingingo zo guhangayika, bigabanya ubukana no kurambura ibikoresho.
| Ikibazo | Impamvu isanzwe |
|---|---|
| Kumena | Aglomerates nini |
| Kurambura | Kurenza - ibirimo graphene |
3. Kuringaniza ibintu neza no gutunganywa
Ibirungo byinshi bya graphene bitezimbere ubwikorezi ariko bizamura ibishishwa. Abakoresha bagomba kubona urwego rwo hasi rwa percolation rwujuje intego zamashanyarazi.
- Koresha imiyoboro ijyanye no gupakira imirongo
- Hindura plastike cyangwa urwego rwo gufasha
Handing Gukoresha neza, kubika, no gufata neza ibikoresho mugihe ukorana na graphene
Ikwirakwizwa rya Graphene rikeneye kugenzura umutekano utekereje, kubika neza, no gufata neza ibikoresho bya ultrasonic no kuvanga ibikoresho kugirango bizakore igihe kirekire.
1. Umutekano bwite n’ibidukikije
Mugabanye uduce duto two mu kirere, irinde guhura nuruhu rwinshi, kandi ukoreshe umuyaga mwinshi aho uduce cyangwa ibicu bishobora kuvuka.
- Wambare uturindantoki, amadarubindi, n'ikote rya laboratoire
- Kusanya imyanda ukurikije amategeko yaho
2. Kubika neza no kuranga
Andika neza ibintu bikomeye, icyiciro, nitariki. Andika ibyifuzo byubuzima hamwe nubushyuhe bwo kubika kuri buri kintu.
| Ingingo | Icyifuzo |
|---|---|
| Ubushyuhe | 5-30 ° C, irinde gukonja |
| Umucyo | Ubike kure y'izuba |
3. Kubungabunga sisitemu ya Ultrasonic
Buri gihe ugenzure probe, kashe, nimbaraga zisohoka. Komeza gukonjesha no gukora isuku kugirango wirinde gutakaza imikorere cyangwa gutsindwa gutunguranye mugihe cyo gutatana.
- Kugenzura inama zamahembe yo kwambara no guturika
- Andika amasaha yo gukora hamwe nigenamiterere ryimbaraga
Umwanzuro
Ikwirakwizwa rya graphene ryizewe biterwa no guhitamo ibisubizo, ingufu zitunganya, inyongeramusaruro, hamwe na polymer zihuza. Igishushanyo cyitondewe kigabanya cyane agglomeration, ubutayu, no gutakaza imikorere mubicuruzwa byanyuma.
Muguhuza ibikoresho bya ultrasonic bikwiye, ibikoresho byoroheje bya rheologiya, hamwe na gahunda yumutekano isobanutse, abayikoresha barashobora kubaka ibikorwa byapimye, bisubirwamo graphene ikwirakwizwa ryujuje ibyifuzo byinganda nubushakashatsi.
Ibibazo Bikunze Kubazwa Kubijyanye na graphene
1. Kuki gutandukana kwa graphene gutakaza gutakaza igihe?
Ibi akenshi biva muri re - agglomeration cyangwa okiside. Kunoza ituze hamwe na surfactants nziza, kugabanya umwanda wibyuma, no kugabanya guhura nubushyuhe bwinshi numwuka.
2. Nigute nshobora kugenzura byihuse ubuziranenge bwa laboratoire?
Koresha ibizamini byoroshye: kureba neza kureba, UV - Kwinjira kwinshi, ntoya - ingano ya centrifugation, kandi, iyo bishoboka, isesengura ry'ubunini cyangwa uburyo bwo gukwirakwiza urumuri.
3. Ni ubuhe bwoko bwa graphene gupakira busanzwe bwa polymer ikora?
Sisitemu nyinshi zigera kuri percolation hagati ya 0.1-3 wt%. Agaciro nyako gashingiye kumiterere ya graphene, igipimo cyerekezo, urwego rutatanye, nubwoko bwa polymer.