PVC vaj huam sib luag yog dab tsi? Kuv ntseeg tias txhua tus paub txog cov khoom qab nthab ntawm PVC vaj huam sib luag manufacturers. Nws yog tsim los ntawm PVC resin ua cov khoom siv hauv paus, ntxiv qee cov tshuaj antioxidants, hloov kho thiab lwm yam khoom ntxiv, los ntawm kev sib xyaw, calendering, lub tshuab nqus tsev hlwv thiab lwm yam txheej txheem. Nws yuav tsis tau piav qhia ntawm no. Mus ncaj.
Ntau lub tuam txhab yuav ntsib qee qhov teeb meem hauv cov txheej txheem ntawm kev tsim cov PVC panels. Hunan Paixin Chemical yuav qhia koj vim li cas PVC vaj huam sib luag manufacturers tig daj thaum lub sij hawm tsim khoom. Yuav daws qhov teeb meem yellowing ntawm PVC li cas?
1. Cov khoom siv raw
Lub ntsiab raw khoom ntawm PVC vaj huam sib luag manufacturers yog PVC cob, uas yog heev rhiab heev rau tshav kub. Thaum cov cua kub kub siab tshaj 90, cov tshuaj tiv thaiv thermal decomposition yuav tshwm sim. Thaum qhov kub nce mus txog 120, cov tshuaj tiv thaiv decomposition intensifies. Thaum 150 thiab 10 feeb, PVC resin maj mam hloov ntawm dawb mus rau daj-liab-xim av-dub.
Qhov twg PVC vaj huam sib luag tsim yog zoo dua
2. Cov txheej txheem ntau lawm cov teeb meem
Thaum lub sij hawm extrusion txheej txheem, PVC yog rhuab thiab sheared los ntawm cov ntsia hlau thiab chim. Yog tias cov txheej txheem tsis raug teeb tsa kom raug, PVC yuav decompose thiab tig daj mus rau qee yam.
Kev daws:
1. Qhov tshwm sim daj tuaj yeem txhim kho los ntawm kev txo qhov kub ntawm lub thoob.
2. Txo qhov ceev ntawm lub cav tseem ceeb nyob rau hauv qhov tsim nyog thiab nce qhov sib piv ntawm cov khoom noj, uas tuaj yeem txo lub zog shear, ua rau cov khoom siv nyob rau hauv lub voj voog ntau dua, thiab muab kev ua si tag nrho rau lub luag haujlwm ntawm stabilizer, yog li txo cov yellowing.
