Okulandelayo ukubuyekezwa kokusetshenziswa kweziqinisi ze-methyl tin ekucutshungulweni kwe-PVC, ngokusekelwe ezicini zazo zokusebenza kanye nemikhuba yemboni:
1, izimo zohlelo lokusebenza kanye nokuzivumelanisa nezimo kwezobuchwepheshe
1. Ukucutshungulwa kwemikhiqizo eqinile esobala
Ifanele amashidi e-PVC abonakalayo, amabhodi, amafilimu okunciphisa ukushisa abonakalayo aphezulu kanye neminye imikhiqizo, isebenzisa ukuhambisana kwayo okuhle ne-resin ye-PVC, ukuhanjiswa kokukhanya komkhiqizo kungafinyelela ngaphezu kwama-90%, futhi akukho mvula noma into ephuzi.
2. Izinqubo ezijwayelekile: ukwakheka kwe-rolling, ukwakha i-extrusion
Ifomula enconywayo: Inani lokwengeza 1.2-1.6 phr (uma sithatha ukujiya kwefilimu 0.1-0.3mm njengesibonelo)
3. Ukukhiqizwa kwamapayipi namaphrofayili
Isetshenziselwa izinto zokwakha ezifana namapayipi okuhambisa amanzi kanye neminyango namafasitela epulasitiki, ingacindezela ukubola kwe-PVC ngesikhathi sokucubungula ngokuqina kokushisa kwesikhathi eside, futhi yandise impilo yokumelana nesimo sezulu yemikhiqizo ngaphezu kuka-30%.
4. Insimu yokupakisha ukudla/yemithi
Ngokuhambisana nezindinganiso zokuhlanzeka ze-EU ROHS kanye ne-US ASTM D3421, ezisetshenziswa ezitsheni zokudla, emabhodleleni okupakisha imithi, njll., okuqukethwe kwensimbi esindayo yomkhiqizo kungaphansi kuka-0.1 ppm.
2, Ukuqhathanisa izinzuzo zohlelo lokusebenza
| Ubukhulu bokusebenza | Isiqinisi se-Methyl tin | Isiqinisi sikasawoti sendabuko |
| Isici sokuqala sokufaka imibala | Amanzi acwebile | Kuthambekele ekubeni phuzi |
| Ukusebenza kahle kokuqina kokushisa | Isikhathi eside (≥ 180 ℃ ukuzinza okuqhubekayo） | Ingozi ephezulu yokwehluleka kwesikhashana |
| Ukuphepha kanye nobungane bemvelo | Isikhathi eside (≥ 180 ℃ ukuzinza okuqhubekayo | Ukungcola kwe-lead/cadmium |
| Ukucutshungulwa | Iyahambisana nayo yonke inqubo ye-PVC eqinile/ethambile | Kuphela kwemikhiqizo eqinile |
Qaphela: Idatha itholakala ekuqhathanisweni kwezilinganiso zangempela ezenziwa amabhizinisi okucubungula i-PVC ngaphakathi nangaphandle.
3, Isu Lokwenza Kahle Lokuzivumelanisa Nenqubo
1. Umklamo wesistimu ehlanganisiwe
Ngokuvamile isetshenziswa kanye namafutha kasoya afakwe i-epoxidized (3-5 phr) kanye ne-calcium stearate (0.5-1 phr) ukuthuthukisa ukugeleza kokuncibilika nokunciphisa amanani e-torque.
2. Ukulawula izinga lokushisa ngesikhathi sokucubungula
Kunconywa ukusetha izinga lokushisa lokukhipha izinto ezingaphandle kwesakhiwo ngezigaba (160-185 ℃) ukuze kugwenywe ukubola kwamaqembu e-thiol okubangelwa ukudlula ama-210 ℃.
3. Ukwelashwa okuvikela umswakama
Uma kugcinwa, umswakama wendawo kufanele ugcinwe ngaphansi kwama-60%. Ngaphambi kokucubungula, izinto zokusetshenziswa ze-PVC kufanele zomiswe ku-80 ℃ amahora ama-2 ukuvimbela ukwehluleka kwe-hydrolysis.
(Qaphela: Lo mkhiqizo uluketshezi oluqinile olungenambala futhi udinga ukugcinwa ngendlela evalwe kude nokukhanya.)
Isikhathi sokuthunyelwe: Meyi-19-2025
