Hei rauemi waro mahi hou, ko te kauwhata whakawhänui (EG) he rauemi noke, he rite ki te kutukutu maiangi i riro mai i nga tawerewere graphite taiao na roto i te whakawhitinga, te horoi, te whakamaroke me te roha wera nui.I tua atu i nga ahuatanga tino pai o te graphite taiao penei i te makariri me te wera, te aukati i te waikura me te whakahinuhinu whaiaro, kei a EG ano nga ahuatanga o te ngawari, te kaha o te whakakoi, te urunga, te whakakotahitanga rauropi me te taiao, te koiora me te aukati iraruraru kaore i te graphite taiao. whai.I te timatanga o te tekau tau atu i 1860, i kitea e Brodie te kauwhata kua whakawhanuihia ma te whakamahana i te kauwhata maori me nga reagents matū penei i te waikawa pungatara me te waikawa nitric.Heoi, i timata tana tono i muri i te kotahi rau tau.Mai i tera wa, he maha nga whenua kua kaha ki te whakahaere rangahau me te whakawhanaketanga o te kauwhata kua whakawhanuihia, a, he nui nga mahi putaiao.

Ka taea e te graphite te whakawhānui ake i te 150 ~ 300 nga wa i roto i te rōrahi i te teitei o te pāmahana, ka huri mai i te pahekeheke ki te vermicular, ka hua mai i te hanganga wewete, maiengi me te kopikopiko, te whanui o te mata o te mata, te kaha ake o te mata, te whakarei ake i te whakaurunga o te graphite flake, me te chimerism i waenganui. graphite vermicular, e whakanui ake ana i te ngawari, te kaha me te kirihou.
He maha nga ahunga whanaketanga o te kauwhata whakawhanui e whai ake nei:

1. Kauwhata whakawhanui mo nga kaupapa motuhake
Ko nga whakamatautau e whakaatu ana ko nga kutukutu kauwhata te mahi o te ngongo ngaru hiko, na te mea he nui te uara tono a te kauwhata whakawhanui.Ko nga hoia o Amerika me o taatau hoia kua whakahaere rangahau whakamatautau mo tenei waahi.Ko te kauwhata whakawhanui me tutuki nga whakaritenga e whai ake nei: (1) iti te pāmahana roha tuatahi me te rōrahi roha nui;(2) Ko te taonga matū he pūmau, me te tere roha fele e kore e pirau i muri i te 5 tau o te rokiroki;(3) Ko te mata o te kauwhata whakawhanui he koretake, kaore he waikura ki te pouaka kariri.

2. Kauwhata whakawhänuihia
Ko te kauwhata whakawhanui matūriki-iti te nuinga e tohu ana ki te kauwhata whakawhanui 300-whakaaro me te rōrahi roha o te 100ml/g.Ko te nuinga o tenei hua e whakamahia ana mo nga paninga mura-muri, a he nui tona hiahia.

3. Kauwhata roha ki teitei teitei pāmahana roha tuatahi
Ko te pāmahana roha tuatahi o te kauwhata whakawhanui me te pāmahana roha tuatahi teitei ko 290-300 ℃, me te rōrahi roha ko ≥ 230ml/g.Ko tenei momo kauwhata whakawhanui e whakamahia ana mo te aukati mura o nga kirihou miihini me te rapa.Ko tenei hua kua oti pai te whakawhanake e te Whare Wananga Ahuwhenua o Hebei me te tono mo te patent mo te motu.

4. Kauwhata whakarerekē mata
Ina whakamahia te kauwhata whakawhanui hei papanga mura-muri, ka uru ki te whakarewatanga o te kauwhata me etahi atu waahanga.Na te nui o te kohuke i runga i te mata o te graphite, ehara i te mea lipophilic, hydrophilic ranei.Na reira, he mea tika ki te whakarereke i te mata o te kauwhata hei whakaoti i te raruraru o te hototahi i waenga i te kauwhata me etahi atu waahanga.Ko etahi o nga tangata i whakaaro kia ma te mata o te kauwhata, ara, ki te uhi i te mata o te kauwhata ki te kiriata ma totoka.He raruraru uaua tenei ki te whakaoti.Kei roto i te matū membrane, te matū mata ranei, ka taea pea i te taiwhanga.He raruraru kei roto i te ahumahi.Tenei ahua o te kauwhata whakawhänui ma te nuinga whakamahia rite te paninga mura retardant.

5. He iti te pāmahana roha tuatahi me te iti o te pāmahana whakawhanui kauwhata
Ka timata tenei ahua o te kauwhata whakawhänui ki te whakawhänui i te 80-150 ℃, a ka tae tona rōrahi roha ki te 250ml/g i te 600 ℃.Ko nga uaua ki te whakarite i te kauwhata whakawhanui e tutuki ana ki tenei ahuatanga ko: (1) te kowhiri i te kaihoko whakawhiti tika;(2) Whakahaere me te mohio ki nga tikanga whakamaroke;(3) Te whakatau i te makuku;(4) Te otinga o nga raruraru tiaki taiao.I tenei wa, kei roto tonu i te waahi whakamatautau te whakarite i te kauwhata whakawhanui-iti.