Umbhobho ocacileyo wePVCyenziwe nge-resin ye-PVC ngokongeza inani elikhulu le-plasticizer, inani elithile lokuzinzisa kunye nezinye izongezo, ngokubumba i-extrusion.Ineempawu ezicacileyo kunye nezigudileyo, ubunzima obukhanyayo, inkangeleko entle, ukuthamba kunye nombala olungileyo, njl njl. Isetyenziswa ngokubanzi kulwakhiwo, ishishini lemichiza kunye nosapho, isetyenziselwa ukufakwa kwamanzi, ukuhambisa i-corrosive medium, kwaye ikwasetyenziswa njenge-wire casing kunye umaleko wokugquma ucingo.
Ifomula ye-PVC ye-hose transparent ibandakanya ikakhulu i-PVC resin, isizinzi sobushushu, i-lubricant, i-plasticizer kunye ne-colorant.Uyilo lwefomula kufuneka luhlangabezane neemfuno zokungafihli, ubulukhuni obuphakathi kunye namandla aphezulu.Ukuze kuphuculwe ukucaca, ekukhethweni kwezixhobo zokusebenza, ngokusemandleni ukukhetha isalathisi se-refractive kunye ne-PVC resin refractive index (1) i-additives efanayo okanye efanayo.Ngenxa yokuba isalathisi esifanayo okanye esifanayo se-refractive ye-raw material ecutshungulwayo ibe ngumxube ofanayo, i-index refractive index kunye ne-refractive index ye-raw material iyafana.Ngale ndlela, into esasazekayo kwindlela yokukhanya kwesiganeko ayiyi kunyuka, ngoko ke i-turbidity yemveliso ayiyi kunyuka, kwaye ukucaca kwemveliso akuyi kuchaphazeleka kakhulu.
PVC intlaka: ngenxa yobuninzi beplastiki kwifomula, i-resin ye-PVC iyadingeka ukuba ithathe ioli kakuhle, kwaye i-resin ekhululekile kufuneka ikhethwe.Ngelo xesha, ubumhlophe obuphezulu kunye nokuzinza okuhle kwe-thermal ye-resin kuyadingeka.Ibhetshi enesibalo esisezantsi sokungcola kunye nenani lamehlo entlanzi.Kwisiseko sokuhlangabezana neemfuno zeempawu zemishini, ukuveliswa kwe-PVC ye-hose ecacileyo kufuneka isetyenziswe ngokusemandleni kunye ne-resin ephantsi ye-molecular weight.Ngenxa yokuba i-plasticizer edla ngokusetyenziswa i-DOP kunye ne-DBP ihlala iqulathe icandelo elinobunzima obusezantsi ngokwentelekiso, xa ubushushu bokusebenza bungaphezulu kwe-105 ℃, ihlala iguquguquka kwaye yenze iqamza, ubushushu bunokulawula kwicala eliphantsi kuphela.Kule meko, iqondo leplastiki kunye nokunyibilika kwe-resin kunye nobunzima obuphantsi bemolekyuli buphezulu kune-resin enobunzima obukhulu be-molecular weight, obunceda ekuphuculeni ukucaca kweemveliso.Ukongezelela, i-resins ephantsi ye-molecular weight is also easy to process.I-General PVC-SG3, SG4, SG5 resin inokukhethwa ngokweemfuno zemveliso.
Iplastiki: ikakhulu qwalasela isiphumo sayo seplastiki, ukumelana nokubanda, ukuqina kunye nefuthe lePVC elubala.I-DOP i-plasticizer enomsebenzi obanzi obanzi, kunye nesalathisi sayo se-refractive yi-1.484, esondele kwi-PVC (1.52 ~ 1.55).Ngokuqhelekileyo isetyenziswa njenge-plasticizer ephambili ye-PVC ecacileyo yepayipi.Isalathiso se-refractive se-DBP yi-1.492, ekwakufutshane ne-PVC resin.Ayizukuchaphazela kakhulu ukungafihli nto, kodwa ukukhula kwayo kukwimeko embi, kwaye iyaguquguquka, kwaye isetyenziswa ngokubanzi njengeplastiki encedisayo ye-DOP.Ukuze kuphuculwe ukumelana nokubanda, i-DOS inokongezwa njenge-plasticizer eyongezelelweyo.Idosi yeplastiki yi-40 ~ 55 eqhelekileyo.
Ukuzinzisa ubushushu: ngaphezu kweemfuno zokuchasana nokushisa, ukuchasana kwemozulu kunye nokucutshungulwa lula kunye nezinye iimpawu ezisisiseko, kufuneka kwakhona kugxininise ekukhanyeni kwayo.I-Organotin stabilizer yeyona nto ifanelekileyo kwaye isetyenziswa ngokuxhaphakileyo ukuzinzisa ubushushu kwiimveliso ezicacileyo zePVC, kodwa ixabiso liphezulu.Izizinzi zesepha zesinyithi, ezifana ne-calcium stearate, i-barium stearate, i-zinc stearate, njl., zidla ngokusetyenziswa zizinzisi zobushushu kwiityhubhu EZINGQONGILEYO ze-PV C. Iimveliso zekhompawundi Ca/ Zn, Ba/Zn, Ba/ Ca kunye ne-Ba/ Ca/ Zn zifanelekile ngakumbi.Ukuze kuncitshiswe inani le-organotin, i-calcium stearate (isepha ye-calcium) kunye ne-zinc stearate (isepha ye-zinc) ecacileyo kunye ne-lubrication isetyenziswe njenge-stabilizers ezincedisayo.
Ixesha lokuposa: Jul-07-2022