Ga wani bita kan amfani da masu daidaita methyl tin a cikin aikin PVC, bisa ga halayensu na aiki da ayyukan masana'antu:
1, Yanayin aikace-aikace da daidaitawar fasaha
1. Sarrafa samfuran tauri masu haske
Ya dace da zanen PVC mai haske, allon, fina-finan rage zafi mai haske da sauran kayayyaki, ta amfani da kyakkyawan jituwa da resin PVC, hasken watsa samfurin zai iya kaiwa sama da kashi 90%, kuma babu wani ruwan sama ko rawaya.
2. Tsarin aiki na yau da kullun: yin birgima, yin extrusion
Tsarin da aka ba da shawarar: Ƙarin adadin 1.2-1.6 phr (idan aka ɗauki kauri na fim 0.1-0.3mm a matsayin misali)
3. Samar da bututu da bayanan martaba
Ana amfani da shi don kayan gini kamar bututun samar da ruwa da ƙofofi da tagogi na filastik, yana iya danne iskar shaka da rugujewar PVC yayin sarrafawa ta hanyar kwanciyar hankali na dogon lokaci na zafi, kuma yana tsawaita rayuwar samfuran da juriya ga yanayi fiye da kashi 30%.
4. Filin marufi na abinci/magani
Bisa ga ƙa'idodin tsabta na EU ROHS da US ASTM D3421, waɗanda ake amfani da su a cikin kwantena masu darajar abinci, kwalaben marufi na magunguna, da sauransu, yawan ƙarfe mai nauyi na samfurin yana ƙasa da 0.1 ppm.
2, Kwatanta fa'idodin aikace-aikace
| Girman aiki | na'urar daidaita tin ta Methyl | Na'urar daidaita gishirin gubar ta gargajiya |
| Alamar launi ta farko | Ruwa a bayyane | Yana da sauƙin yin yellowing |
| Ingancin kwanciyar hankali na zafi | Na dogon lokaci (≥ 180 ℃ ci gaba da kwanciyar hankali) | Babban haɗarin gazawar tsakiyar lokaci |
| Tsaro da kuma kyautata muhalli | Dogon lokaci (≥ 180 ℃ ci gaba da kwanciyar hankali | Gurɓatattun gubar/cadmium |
| Tsarin sarrafawa | Dace da dukkan tsarin PVC mai tauri/taushi | Sai kawai don samfuran tauri |
Lura: An samo bayanan ne daga kwatancen ainihin ma'aunai da kamfanonin sarrafa PVC suka gudanar a cikin gida da kuma ƙasashen waje.
3, Tsarin Ingantawa don daidaitawa da tsari
1. Tsarin tsarin haɗin gwiwa
Yawanci ana amfani da shi tare da man waken soya mai sinadarin epoxidized (3-5 phr) da kuma sinadarin calcium stearate (0.5-1 phr) don haɓaka kwararar narkewa da rage ƙimar ƙarfin juyi.
2. Kula da zafin jiki yayin sarrafawa
Ana ba da shawarar a saita zafin extrusion a cikin sassan (160-185 ℃) don guje wa rugujewar ƙungiyoyin thiol da ke haifar da wuce 210 ℃.
3. Maganin hana danshi
Lokacin adanawa, ya kamata a kiyaye danshi a ƙasa da kashi 60%. Kafin a sarrafa, ya kamata a busar da kayan PVC a zafin digiri 80 na Celsius na tsawon awanni 2 don hana lalacewar hydrolysis.
(Lura: Samfurin ruwa ne mai kauri mara launi kuma yana buƙatar a adana shi a cikin rufaffen wuri nesa da haske.)
Lokacin Saƙo: Mayu-19-2025
