Ngesikhathi seholide Lomkhosi Wasentwasahlobo, iningi lamafekthri e-epoxy resin e-China asesimweni sokuvalwa ukuze alungiswe, futhi izinga lokusebenzisa amandla libalelwa ku-30%. Amabhizinisi amatheminali aphansi kakhulu asesimweni sokuchithwa neholide, futhi okwamanje asikho isidingo sokuthenga. Kulindeleke ukuthi ngemva kweholide, ezinye izidingo ezibalulekile zizosekela ukugxila okuqinile kwemakethe, kodwa ukusimama kunomkhawulo.

1. Ukuhlaziywa kwezindleko:

1. Ukuthambekela kwemakethe ye-bisphenol A: Imakethe ye-bisphenol A ikhombisa ukuguquguquka okuncane, ikakhulukazi ngenxa yokuzinza kokuhlinzekwa kwempahla eluhlaza kanye nohlangothi lwesidingo oluzinzile uma kuqhathaniswa. Nakuba izinguquko kumanani entengo kawoyela ongahluziwe wamazwe ngamazwe zingase zibe nomthelela othile ezindlekweni ze-bisphenol A, uma kucatshangelwa ububanzi bayo bokusetshenziswa, intengo yawo ayithinteki kancane ngempahla eyodwa eluhlaza.

2. Amandla emakethe ye-epichlorohydrin: Imakethe ye-epichlorohydrin ingase ibonise inkambiso yokukhuphuka kuqala bese iwa. Lokhu kubangelwa ikakhulukazi ukusimama kancane kancane kwesidingo esingaphansi komfula ngemva kweholide kanye nokutholwa kwezinto zokuhamba. Kodwa-ke, njengoba ukunikezwa kukhula kanye nesidingo sizinza kancane kancane, amanani angase abhekane nokudonsela emuva.

3. Isibikezelo samazwe ngamazwe sokuthambekela kukawoyela ongahluziwe: Kungase kube khona indawo yokwenyuka kwamanani kawoyela wamazwe ngamazwe ngemva kweholide, okuthinteka kakhulu ekuncishisweni kokukhiqizwa kwe-OPEC, ukungezwani kwezombusazwe eMpumalanga Ephakathi, kanye nokulungiswa okukhuphukayo kwesibikezelo sokukhula komnotho womhlaba. Lokhu kuzonikeza ukusekelwa kwezindleko zezinto ezingavuthiwe ezikhuphukayo ze-epoxy resin.

2. Ukuhlaziywa kohlangothi lokunikezela:

1. Izinga lokusebenzisa amandla esitshalo se-epoxy resin: Phakathi noMkhosi Wasentwasahlobo, amayunithi amaningi ezitshalo ze-epoxy resin avalwa ukuze alungiswe, okubangele ukwehla okukhulu kwezinga lokusetshenziswa kwamandla. Ngokuyinhloko leli isu elamukelwa amabhizinisi ukugcina ibhalansi yesidingo sokuhlinzekwa kwempahla emakethe yangemva kweholide.

2. Uhlelo olusha lokukhishwa kwamandla: NgoFebhuwari, okwamanje alukho uhlelo olusha lokukhishwa kwamandla emakethe ye-epoxy resin. Lokhu kusho ukuthi ukunikezwa emakethe kuzokhawulwa esikhathini esifushane, okungase kube nomthelela othile wokusekela kumanani.

3.Isimo sokulandelela isidingo setheminali: Ngemva kweholide, izimboni ezansi nomfula ezifana nama-coatings, amandla omoya, nezinto zikagesi nobunjiniyela bakagesi kungenzeka ziqede ukugcwaliswa kwesidingo ngezigaba. Lokhu kuzonikeza ukwesekwa kwesidingo esithile semakethe ye-epoxy resin.

3. Isibikezelo sethrendi yemakethe:

Ngokucabangela kokubili izindleko kanye nezici zokuhlinzeka, kulindeleke ukuthi imakethe ye-epoxy resin ingase ibe mkhuba wokukhuphuka kuqala bese wehla ngemva kweholide. Esikhathini esifushane, ukugcwaliswa kwesidingo ezimbonini ezisezansi nomfula kanye nokwenyuka okuncane kwamabhizinisi okukhiqiza kungase kwenyuse amanani emakethe. Kodwa-ke, njengoba ukugcwalisa ngezigaba kuphela futhi ukunikezwa kukhula kancane kancane, kancane kancane imakethe ingase iphinde ithole ukuqonda futhi amanani angase abhekane nokulungiswa.