Isigaba Esihlanganisiwe Sishintsha Ubuchwepheshe Besitoreji Sokushisaigwema izithiyo eziningi zokugcina ukushisa okunengqondo kanye nesigaba sokushintsha amasu okugcina ukushisa ngokuhlanganisa zombili izindlela. Lobu buchwepheshe sebuphenduke isizinda socwaningo eminyakeni yakamuva, ngaphakathi nangaphandle. Kodwa-ke, izinto ze-scaffold zendabuko ezisetshenziswa kulobu buchwepheshe ngokuvamile zingamaminerali emvelo noma imikhiqizo yazo yesibili. Ukukhishwa okukhulu noma ukucutshungulwa kwalezi zinto kungalimaza i-ecosystem yendawo futhi kudle amanani abalulekile wamandla ezinsalela. Ukuze kuncishiswe le mithelela yezemvelo, udoti oqinile ungasetshenziswa ukukhiqiza izinto eziyinhlanganisela zokushintsha kwesigaba sokugcina ukushisa.
I-Carbide slag, imfucuza eqinile yezimboni ekhiqizwa ngesikhathi sokukhiqizwa kwe-acetylene ne-polyvinyl chloride, idlula amathani ayizigidi ezingama-50 ngonyaka eChina. Ukusetshenziswa kwamanje kwe-carbide slag embonini kasimende sekufinyelele ekugcwalisweni, okuholela ekuqongeleleni okukhulu kwendawo evulekile, ukugcwaliswa komhlaba, nokulahlwa kolwandle, okulimaza kakhulu i-ecosystem yendawo. Kunesidingo esiphuthumayo sokuhlola izindlela ezintsha zokusebenzisa izinsiza.
Ukuze kubhekwane nokusetshenziswa okukhulu kwe-carbide slag yezimboni kanye nokulungisa izinto zokugcina ukushisa ezinekhabhoni ephansi, eziyinhlanganisela eshibhile eshibhile, abacwaningi baseBeijing University of Civil Engineering and Architecture bahlongoza ukusebenzisa i-carbide slag njenge-scaffold material. Basebenzise indlela yokucindezela umshini obandayo ukuze balungiselele i-Na₂CO₃/carbide slag esiyinhlanganisela yesigaba sokushintsha izinto zokugcina ukushisa, ngokulandela izinyathelo eziboniswe esithombeni. Amasampula ezinto eziyinhlanganisela zezigaba eziyisikhombisa anezilinganiso ezihlukene (NC5-NC7) alungiswa. Uma kucatshangelwa ukuwohloka sekukonke, ukuvuza kukasawoti oncibilikisiwe ongaphezulu, kanye nokuminyana kokugcinwa kokushisa, nakuba ukuminyana kokugcinwa kokushisa kwesampula NC4 bekuphakeme kakhulu phakathi kwezinto ezintathu eziyinhlanganisela, kubonise ukuguga nokuvuza okuncane. Ngakho-ke, isampula ye-NC5 yanqunywa ukuthi ibe nenani elilungile lesilinganiso sokushintsha kwesigaba esiyinhlanganisela impahla yokugcina ukushisa. Ithimba labe selihlaziya i-macroscopic morphology, ukusebenza kwesitoreji sokushisa, izakhiwo zemishini, i-microscopic morphology, ukuzinza komjikelezo, nokuhambisana kwengxenye yesigaba esiyinhlanganisela sokushintsha kokusebenza kokugcinwa kokushisa, lanikeza iziphetho ezilandelayo:
01Ukuhambisana phakathi kwe-carbide slag ne-Na₂CO₃ kuhle, okuvumela i-carbide slag ukuthi ithathele indawo yezinto zemvelo zescaffold zemvelo ekuhlanganiseni isigaba se-Na₂CO₃/carbide slag esiyinhlanganisela yesigaba sokushintsha izinto zokugcina ukushisa. Lokhu kusiza ukugaywa kabusha kwensiza enkulu ye-carbide slag futhi kufinyelela ukulungiselelwa okunekhabhoni ephansi, okunezindleko eziphansi zezinto zokugcinwa kokushisa kwesigaba esiyinhlanganisela.
02Isigaba esiyinhlanganisela sishintsha impahla yokugcina ukushisa esebenza kahle kakhulu singalungiselelwa ngengxenye enkulu ye-52.5% carbide slag kanye ne-47.5% yezinto zokushintsha isigaba (Na₂CO₃). Izinto ezibonakalayo azibonisi ukuguqulwa noma ukuvuza, nokuminyana kwesitoreji sokushisa kufika ku-993 J/g ebangeni lokushisa elingu-100-900°C, amandla acindezelayo angu-22.02 MPa, kanye ne-thermal conductivity engu-0.62 W/(m•K ). Ngemuva kwemijikelezo engu-100 yokushisisa/yokupholisa, ukusebenza kwesitoreji sokushisa kwesampula ye-NC5 kuhlale kuzinzile.
03Ugqinsi lwesendlalelo sefilimu esishintshayo sesigaba phakathi kwezinhlayiya zesikafula sinquma amandla okusebenzelana phakathi kwezinhlayiya zempahla ye-scaffold namandla acindezelayo wesigaba esiyinhlanganisela shintsha impahla yokugcina ukushisa. Isigaba esiyinhlanganisela sishintsha izinto zokugcinwa kokushisa ezilungiselelwe ngengxenye enkulu yenqwaba yezinto ezishintshayo zesigaba sibonisa izakhiwo ezingcono kakhulu zemishini.
04I-thermal conductivity yezinhlayiya ze-scaffold material iyisici esiyinhloko esithinta ukusebenza kokudlulisa ukushisa kwesigaba esiyinhlanganisela shintsha izinto zokugcina ukushisa. Ukungena kanye nokukhangiswa kwezinto zokushintsha kwesigaba esakhiweni se-pore sezinhlayiya ze-scaffold material kuthuthukisa ukuqhutshwa kokushisa kwezinhlayiya ze-scaffold material, ngaleyo ndlela kuthuthukise ukusebenza kokudlulisa ukushisa kwesigaba esiyinhlanganisela shintsha impahla yokugcina ukushisa.
Isikhathi sokuthumela: Aug-12-2024