Ngenxa yokuba izixhobo zokulungisa i-PVC zihambelana kakhulu ne-PVC kwaye zinobunzima obukhulu be-molecular (malunga (1-2) × 105-2.5 × 106g/mol) kwaye azinawo umgubo wokugquma, ziphantsi kobushushu kunye nokuxubana ngexesha lenkqubo yokubumba. Ziqala zithambise kwaye zibophe ngokuqinileyo amasuntswana e-resin ajikelezileyo. Ngokungqubana kunye nokudluliselwa kobushushu, ukunyibilika (ijeli) kuyakhuthazwa. I-viscosity yokunyibilika ayinciphi, okanye inyuke; Ngenxa yokuxinana kwee-molecular chains, ukuthamba, amandla, kunye nokwandiswa kwe-PVC kuphuculwe.
Ukongeza, ngenxa yokuba iindawo ezihambelanayo nezingahambelaniyo zePVC zenza izixhobo zokucubungula ezinesakhiwo segobolondo eliphambili. Ngokubanzi, ayihambelani nePVC kwaye ngenxa yoko isebenza njengesithambisi sangaphandle, kodwa ayikhawulezi kwaye yenze izikali, ezinefuthe lokulibazisa ekunyibilikeni. Ke ngoko, ngokusekelwe kwezi mpawu zesicelo, izixhobo zokucubungula iPVC zinokwahlulwa zibe ziindidi ezimbini: ezibanzi nezithambisayo. Umsebenzi wezixhobo zokucubungula iPVC ezibanzi kukunciphisa ubushushu bokunyibilika, ukonyusa amandla obushushu kunye nokufana, ukunciphisa ukwaphuka kokunyibilika, kunye nokunika ukuguguleka okukhulu. Le misebenzi ineenzuzo ezinkulu zokucubungula iPVC: ukunciphisa ubushushu bokunyibilika kuthetha ukwandisa ixesha lozinzo lobushushu, ukubonelela ngento yokhuseleko yokusetyenziswa kwezinto ezisetyenzisiweyo, kunye nokuvumela ukucutshungulwa okuqhubekayo; Ukuphucula amandla obushushu kunye nokuguguleka kokunyibilika okuncitshisiweyo, oko kuthetha ukuba kunokunyusa isantya sokucubungula, kukhawulezise ukutsala, kwaye kuphucule umgangatho obonakalayo kunye nokukwazi ukwakheka; Ukuphucula ukufana kokunyibilika, okunokunciphisa amaza omphezulu kunye nokuqhekeka kokunyibilika kwezinto ezikhutshiweyo, ngaloo ndlela kwandisa imveliso, kuphucula ukuguguleka kunye nokwakheka kobushushu.
Ixesha leposi: Septemba-05-2024
