Mafi yawan sinadaran daidaita sinadarin calcium zinc sun ƙunshi sabulun stearic acid, sai kuma sabulun lauric acid da sabulun oleic acid. Ana siffanta samfurin da kyakkyawan man shafawa kuma baya rage laushin samfuran PVC masu tauri, wanda hakan ya sa ya dace da sarrafa bututun PVC masu tauri da kuma bayanan martaba.
Kayayyakin da aka sarrafa ta amfani da fasahar microemulsification sun shawo kan matsalolin da aka ambata a baya. Mutane suna mai da hankali kan fannoni biyu don ingantawa: don inganta launi na farko, ana ƙara isasshen sabulun zinc, kuma ana amfani da sinadaran chelating don sa zinc chloride ya zama mara lahani. Wannan an san shi da babban haɗin zinc: rage adadin sabulun zinc da aka ƙara don rage ƙonewar zinc, da kuma amfani da ƙari don canza launin farko. Wannan hanyar ana kiranta da ƙarancin haɗin zinc., Ba wai kawai ana amfani da ita sosai a cikin samfuran laushi ba, an gane tasirin kwanciyar hankali na zafi da bayyanawa, amma kuma an yi amfani da ita cikin nasara a cikin sarrafa samfura masu tauri. Domin kiyaye ƙarancin launin farko da kuma rage ƙonewar zinc a cikin tsarin calcium/zinc.
Gabaɗaya, gishirin gubar yana manne ne kawai a saman ƙwayoyin PVC, wanda ke aiki a matsayin cikas ga haɗakar ƙwayoyin PVC, yana jinkirta plasticization sosai, yana rage gogayya tsakanin ƙwayoyin PVC, da kuma rage yankewa a cikin PVC. Kayan aikin sarrafawa na iya jure ƙananan kaya. Da zarar an yi amfani da gishirin gubar, to, ƙwayoyin gishirin gubar za su fi kyau, kuma tasirin zai fi bayyana.
Kayayyakin gargajiya masu aminci ga muhalli kamar su sinadarin calcium zinc stabilizers, saboda yawan sinadarin electronegativity, suna da alaƙa tsakanin ƙungiyoyin polar da ƙananan ƙwayoyin resin PVC yayin aikin plasticization, suna samar da hadaddun makamashi mai ƙarfi, ta haka suna raunana ko kawar da jan hankalin haɗin ion a cikin layuka daban-daban na PVC. Wannan yana sa sassan sarkar PVC waɗanda suka makale da juna cikin sauƙi su yaɗu, kuma iyakokin da ke tsakanin ƙungiyoyin kwayoyin halitta suna da sauƙin kunkuntar, wanda ke haɓaka plasticization na PVC resin. Wannan yana haifar da ƙaruwar matsin lamba na narkewa cikin sauri, raguwar danko na narkewa, ƙaruwar zafin jiki, da raguwar zafin plasticization bayan an plasticized resin a cikin sashin ciyarwa. plasticization na canjin resin ya sake faruwa.
Saboda gaskiyar cewa kayan aikin sarrafa PVC na gargajiya an tsara su ne don sarrafawa tare da masu daidaita gishirin gubar, ko da ƙara isasshen mai ba zai iya hana ƙarin plasticization na resin a cikin isasshen lokaci ba, kuma yana lalata daidaiton man shafawa na asali. Amfani da narkewar PVC a matakin daidaitawa yana cinye adadi mai yawa na mai daidaita zafi, amma ba zai iya cimma cikakkiyar danko da sassauci don biyan buƙatun samar da PVC mai tauri ba. Wannan matsala ce da masu daidaita zinc na calcium dole ne su magance wajen maye gurbin gishirin gubar.
Lokacin Saƙo: Nuwamba-20-2024
