-
Ukuthuthukiswa Kobuchwepheshe be-N-Nitroamine: Indlela Entsha Esebenza Kakhulu Iguqula Ukwenziwa Kwemithi
Impumelelo yesayensi esezingeni eliphezulu kubuchwepheshe obusha bokususa i-amino acid esebenza kahle kakhulu, eyasungulwa yinkampani entsha yezinto zokwakha eseHeilongjiang, eShayina, yanyatheliswa ngokusemthethweni kumagazini wezemfundo wamazwe ngamazwe i-Nature ekuqaleni kukaNovemba 2025. Yadunyiswa njengentuthuko yezinga lomhlaba kwezokwelapha izidakamizwa...Funda kabanzi -
Ukusheshiswa Kokuhweba Kwe-BDO Esekelwe Ku-Bio Kubumba Kabusha Imakethe Yezinto Ezingavuthiwe Ze-Polyurethane Yama-Yuan Ayizigidi Eziyi-100
Muva nje, ukuthuthuka kwezobuchwepheshe kanye nokwandiswa kwamandla e-1,4-butanediol (BDO) esekelwe ku-bio kube ngenye yezindlela eziphawuleka kakhulu embonini yamakhemikhali yomhlaba wonke. I-BDO iyinto eluhlaza eyinhloko yokukhiqiza ama-elastomer e-polyurethane (PU), i-Spandex, kanye ne-PBT yepulasitiki ebolayo, enendabuko yayo...Funda kabanzi -
Ubuchwepheshe Bokuhlela Ama-Molecular Bushintsha Inqubo Yakudala, Ubuchwepheshe Bokususa Ama-Amine Ngokuqondile Bubangela Ukuguqulwa Kwe-Industrial Chain
Ukuthuthuka Okuyinhloko Ngomhlaka-28 Okthoba, ubuchwepheshe bokususa i-aromatic functionalization obuqondiswe ngqo kuma-aromatic amines athuthukiswe yithimba likaZhang Xiaheng elivela e-Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences (HIAS, UCAS) banyatheliswa ku-Nature. Lobu buchwepheshe buxazulula...Funda kabanzi -
Intuthuko Entsha Ekuguquleni Imfucuza Ibe Yingcebo! Ososayensi BaseShayina Baguqula Imfucuza Ibe Yi-Formamide Enenani Eliphezulu Besebenzisa Ukukhanya Kwelanga
Okuqukethwe Okuyinhloko Ithimba locwaningo elivela e-Chinese Academy of Sciences (CAS) lishicilele okutholakele kwalo ku-Angewandte Chemie International Edition, lakha ubuchwepheshe obusha be-photocatalytic. Lobu buchwepheshe busebenzisa i-photocatalyst ye-Pt₁Au/TiO₂ ukuze kuvunyelwe ukusabela kokuxhuma kwe-CN phakathi kwe-ethylene glycol (okuthola...Funda kabanzi -
I-China Ihlanganisa Amabhizinisi Emboni Ye-PTA/PET Ukuze Abhekane Nenkinga Yomthamo Ongaphezu Kwesilinganiso
Ngomhlaka-27 Okthoba, uMnyango Wezimboni Nobuchwepheshe Bolwazi waseShayina wabiza abakhiqizi abakhulu basekhaya be-Purified Terephthalic Acid (PTA) kanye nama-PET bottle-grade chips ukuze kuxoxwe ngokukhethekile ngendaba "yokusebenzisa ngokweqile ngaphakathi kwemboni kanye nokuncintisana okuqondile". Lokhu...Funda kabanzi -
I-US Ikhipha "Ukuvinjelwa Kokugcina" Emikhiqizweni Yabathengi Equkethe i-Methylene Chloride, Iphoqa Imboni Yamakhemikhali Ukusheshisa Ukusesha Okungena Esikhundleni
Okuqukethwe Okuyinhloko Umthetho wokugcina okhishwe yi-US Environmental Protection Agency (EPA) ngaphansi koMthetho Wokulawula Izinto Ezinobuthi (TSCA) usuqalile ukusebenza ngokusemthethweni. Lo mthetho uvimbela ukusetshenziswa kwe-methylene chloride emikhiqizweni yabathengi efana ne-paint strippers futhi ubeka imikhawulo eqinile ekukhiqizweni kwayo...Funda kabanzi -
I-Glutaraldehyde Technological Frontier: Intuthuko kubuchwepheshe bokulwa ne-Calcification
Emkhakheni wezimila zenhliziyo, i-glutaraldehyde ibilokhu isetshenziswa isikhathi eside ukwelapha izicubu zezilwane (njenge-bovine pericardium) ekukhiqizeni ama-valve e-bioprosthetic. Kodwa-ke, amaqembu e-aldehyde angenayo i-aldehyde asuka ezinqubweni zendabuko angaholela ekufakweni kwe-calcium ngemuva kokufakelwa, okufaka engcupheni...Funda kabanzi -
Imakethe ye-Dimethyl Sulfoxide (DMSO): Ukubuka konke kanye nentuthuko yakamuva yobuchwepheshe
Ukubuka Konke Kwemakethe Yezimboni I-Dimethyl Sulfoxide (DMSO) iyi-solvent ebalulekile yezinto eziphilayo esetshenziswa kabanzi kwezemithi, kuma-elekthronikhi, kuma-petrochemicals, nakweminye imikhakha. Ngezansi isifinyezo sesimo sayo semakethe: Into Intuthuko Yakamuva Usayizi Wemakethe Yomhlaba Wonke Usayizi wemakethe yomhlaba wonke wawucishe ube ngu-$...Funda kabanzi -
I-United States ibeke intela enkulu ku-MDI yaseShayina, kanti amazinga entela yokuqala yenkampani enkulu embonini yaseShayina abekwe phezulu njengo-376%-511%. Lokhu kulindeleke ukuthi kube nomthelela ekumunceni imakethe yokuthumela kwamanye amazwe...
I-US imemezele imiphumela yokuqala yophenyo lwayo lokulwa nokulahla izimpahla ezidayiswayo nge-MDI evela eShayina, kanti amazinga entela aphezulu kakhulu ashaqisa yonke imboni yamakhemikhali. UMnyango Wezohwebo wase-US unqume ukuthi abakhiqizi nabathumeli be-MDI baseShayina bathengise imikhiqizo yabo ...Funda kabanzi -
I-N-Methylpyrrolidone (NMP): Imithethonqubo Eqinile Yezemvelo Ikhuthaza Ucwaningo Nokuthuthukiswa Kwezindlela Ezihlukile Nokusetshenziswa Kokusungula I-NMP Ngokwayo Emikhakheni Esezingeni Eliphezulu
I. Izitayela Zemboni Eziyinhloko: Eziqhutshwa Yimithetho kanye Nokuguqulwa Kwemakethe Njengamanje, umkhuba othinta kakhulu imboni ye-NMP uvela ekuqaphelweni komthetho womhlaba wonke. 1. Imikhawulo ngaphansi koMthethonqubo we-EU REACH NMP ifakwe ngokusemthethweni ohlwini lwabantu abazongenela ukhetho lwezinto...Funda kabanzi
