Mai hana tagulla ko na kashe jan ƙarfe wani ƙari ne na aiki da ake amfani da shi a cikin kayan polymer kamar robobi da roba. Babban aikinsa shi ne ya hana tasirin tsufa na jan ƙarfe ko ions jan ƙarfe akan kayan, hana lalata kayan abu, canza launin launi, ko lalata kayan injin da ke haifar da haɗuwa da jan karfe. Yana da mahimmanci musamman a fagage kamar magudanar waya, kubewar igiya, kayan marufi na lantarki, da sauransu.
Ana amfani da Copper da Alloys ɗinsa (irin su wayoyi) wajen watsa wutar lantarki, amma idan jan ƙarfe ya zo cikin hulɗa kai tsaye da wasu kayan polymer (kamar PVC, polyethylene), yana iya haifar da matsaloli kamar haka:
Catalytic oxidation:
Cu2+ shine ƙaƙƙarfan ƙaƙƙarfan oxidation wanda ke hanzarta karyewar sarƙoƙin ƙwayoyin ƙwayoyin cuta na polymer, musamman a cikin matsanancin zafin jiki da mahalli mai ɗanɗano.
Lalata acid:
A cikin kayan halogenated kamar PVC, jan ƙarfe na iya amsawa tare da ruɓaɓɓen HCl don samar da jan karfe chloride (CuCl2), ƙara haɓaka bazuwar abu (tasirin kai tsaye).
Lalacewar bayyanar:
Ƙaurawar ions na jan karfe na iya haifar da launin kore ko baƙar fata (tsatsa na jan karfe) don bayyana a saman kayan, yana shafar bayyanarsa.
Hanyar aikin deactivator
Masu kashewa suna kashe mummunan tasirin jan ƙarfe ta hanyoyi masu zuwa:
Chelated jan karfe ions:
Haɗe tare da Cu2+ kyauta, an samar da barga masu ƙarfi don toshe ayyukan su na motsa jiki (kamar mahaɗan benzotriazole).
Passivation na jan karfe:
Samar da fim mai kariya a saman jan karfe don hana sakin ions na jan karfe (kamar mahadi na phosphorus na kwayoyin).
Abubuwan da ke hana acidic:
A cikin PVC, wasu masu kashe wuta na iya kawar da HCl da aka samar ta hanyar lalacewa, rage lalata tagulla (kamar masu daidaita gishirin gubar waɗanda kuma ke da aikin juriya na jan karfe).
Deactivators na Copper wani nau'in "Mai ganuwa ne" a cikin kayan polymer waɗanda ke haɓaka rayuwar samfuran samfuran kamar sheathing na waya ta hanyar hana ayyukan jan ƙarfe. Tushen fasahar sa ya ta'allaka ne a cikin madaidaicin chelation na sinadarai da wuce gona da iri, yayin da ake daidaita abokantakar muhalli da ingancin farashi. A cikin zane na waya casing, da coordinative dabara nadeactivators, harshen wutada sauran additives shine mabuɗin don tabbatar da amincin kayan aiki na dogon lokaci.
Lokacin aikawa: Maris-05-2025