Sake amfani da polyvinyl chloride

Polyvinyl chloride yana ɗaya daga cikin manyan robobi guda biyar da ake amfani da su a duniya. Saboda ƙarancin farashin samarwa idan aka kwatanta da polyethylene da wasu ƙarfe, da kuma kyakkyawan aikin sarrafawa da kuma halayen jiki da sinadarai na samfura, yana iya biyan buƙatun shirya abubuwa masu wuya zuwa laushi, roba, zare, shafi da sauran halaye, kuma ana amfani da shi sosai a fannoni daban-daban kamar masana'antu, noma, da gini. Yadda ake sake amfani da sharar polyvinyl chloride yana da matuƙar muhimmanci.
1. Sabuntawa
Da farko, ana iya yin sake farfaɗowa kai tsaye. Sake farfaɗowa kai tsaye na filastik ɗin sharar yana nufin sarrafawa kai tsaye da ƙera filastik ɗin sharar ta hanyar tsaftacewa, niƙawa, da kuma ƙera shi ba tare da buƙatar gyare-gyare daban-daban ba, ko sarrafa da ƙera kayayyaki ta hanyar granulation. Bugu da ƙari, ana iya gyara shi da sake farfaɗowa. Gyara da sake farfaɗowa na tsoffin filastik yana nufin gyaran jiki da sinadarai na filastik da aka sake yin amfani da su kafin a sarrafa su da kuma samar da su. Za a iya raba gyare-gyare zuwa gyare-gyare na zahiri da gyaran sinadarai. Cikowa, haɗakar fiber, da haɗakarwa su ne manyan hanyoyin gyaran jiki na PVC. Gyaran cika yana nufin hanyar gyara na haɗa abubuwan gyara na cika barbashi tare da mafi girman modulus a cikin polymers. Gyaran ƙarfafa fiber yana nufin hanyar gyara na ƙara babban modulus da manyan zaruruwan halitta ko na wucin gadi a cikin polymer, ta haka yana inganta halayen injiniya na samfurin sosai. Gyaran sinadarai na PVC ana samunsa ta hanyar canza tsarin PVC ta hanyar wasu halayen sinadarai.
2. Cire da amfani da hydrogen chloride
PVC ya ƙunshi kusan kashi 59% na sinadarin chlorine. Ba kamar sauran sinadaran polymer na sarkar carbon ba, sarkar reshe na PVC tana karyewa kafin babban sarkar yayin fashewa, tana samar da iskar hydrogen chloride mai yawa, wanda zai lalata kayan aiki, ya lalata gubar Catalyst, kuma ya shafi ingancin kayayyakin fashewa. Saboda haka, ya kamata a yi maganin cire hydrogen chloride yayin fashewar PVC.
3. Kona PVC don amfani da zafi da iskar chlorine
Ga robobi masu sharar da ke ɗauke da PVC, galibi ana amfani da halayyar samar da zafi mai yawa don haɗa su da sharar da ke ƙonewa daban-daban da kuma samar da mai mai ƙarfi mai girman barbashi iri ɗaya. Wannan ba wai kawai yana sauƙaƙa ajiya da jigilar kaya ba ne, har ma yana maye gurbin man da ake amfani da shi a cikin tukunyar ƙona kwal da murhun masana'antu, kuma yana rage sinadarin chlorine don inganta ingancin zafi.