1. Inombolo ye-Viscosity
Inombolo ye-viscosity ibonisa i-avareji yobunzima be-molecular of the resin kwaye luphawu oluphambili lokumisela uhlobo lwe-resin. Iipropati kunye nokusetyenziswa kwe-resin kuyahluka ngokuxhomekeke kwi-viscosity. Njengoko iqondo lepolymerization yePVC resin isanda, iipropathi zoomatshini ezinje ngokuqina kokuqina, amandla empembelelo, ukomelela kokwaphuka, kunye nobude ngexesha lekhefu, ngelixa amandla esivuno ehla. Iziphumo zophando zibonisa ukuba njengoko iqondo lepolymerization ye-PVC yokuncedisa ekuqhubeni inyuka, iimpawu ezisisiseko ze-resin ziphucula, ngelixa ukusebenza kokucubungula kunye nokuziphatha kwe-rheological kuhla. Ingabonwa ukuba ukuhanjiswa kwe-molecular weight of PVC resin kunobudlelwane obusondeleyo kunye nokulungiswa kweplastiki kunye nokusebenza kwemveliso.
2. Ubalo lwamasuntswana okungcola (amachaphaza amnyama natyheli)
Amasuntswana angcolileyo yenye yezalathi ezibalulekileyo zokuvavanya i-PVC resin. Izinto eziphambili ezichaphazela esi salathisi zezi: okokuqala, izinto ezishiyekileyo eludongeni lokugubungela i-kettle ye-polymerization ayihlanjwanga kakuhle kwaye i-raw material ingcolile ngokungcola; okwesibini, ukunxitywa koomatshini okuxutywe nokungcola kunye nokusebenza ngokungafanelekanga okuzisa ukungcola; Kwinkqubo yokucubungula iplastiki, ukuba kukho iincinci ezininzi zokungcola, kuya kuba nemiphumo emibi ekusebenzeni kunye nokusetyenziswa kweemveliso zePVC eziveliswayo. Ngokomzekelo, ekuqhutyweni nasekubunjweni kweeprofayili, kukho ukungcola okuninzi kunye neengqungquthela, ezinokubangela ukuba amabala avele ebusweni beprofayili, ngaloo ndlela ukunciphisa ukubonakala kwemveliso. Ukongeza, ngenxa yokungabikho kweplastiki yeengqungquthela zokungcola okanye amandla aphantsi nangona iplastiki, iimpawu zomatshini zemveliso ziyancipha.
3. Ukuguquguquka (kubandakanywa namanzi)
Esi sibonakaliso sibonisa ukulahleka kwesisindo se-resin emva kokufudumeza kwiqondo lokushisa elithile. Umxholo ophantsi wezinto eziguquguqukayo unokuvelisa kalula umbane we-static, ongenakulungelelaniswa nemisebenzi yokutya ngexesha lokucubungula kunye nokubumba; Ukuba umxholo oguquguqukayo uphezulu kakhulu, i-resin ixhomekeke kwi-clumping kunye ne-fluidity embi, kwaye iibhubhu zenziwe ngokulula ngexesha lokubunjwa kunye nokucubungula, okunempembelelo embi kumgangatho wemveliso.
4. Ukuxinana okubonakalayo
Ubuninzi obucacileyo bubunzima beyunithi yeyunithi ye-PVC ye-resin powder engaxinzelelwanga. Inxulumene ne-particle morphology, ubungakanani be-particle size, kunye nokusabalalisa ubungakanani be-resin. Ukuxinana okubonakalayo okusezantsi, umthamo omkhulu, ukufunxwa ngokukhawuleza kweeplasticizers, kunye nokusebenza ngokulula. Ngokuchasene noko, umndilili ophezulu wobungakanani besayizi yesuntswana kunye nomthamo omncinci ukhokelela ekufunxeni kwezixhobo zokuqhuba zePVC. Ukuveliswa kweemveliso ezinzima, imfuno yobunzima be-molecular ayiphezulu, kwaye i-plasticizers ayidibanisi ngokubanzi ngexesha lokucubungula. Ngoko ke, i-porosity ye-resin particles iyadingeka ukuba ibe ngaphantsi, kodwa kukho imfuneko yokuhamba okomileyo kwe-resin, ngoko ke ubuninzi obubonakalayo be-resin buhambelana ngokuhambelanayo.
5. Ukufunxwa kwePlastiki yentlaka
Isixa sokufunxa se-PVC sokuncedisa i-processing sibonakalisa iqondo le-pores ngaphakathi kwee-resin particles, kunye nesantya esiphezulu sokufunxa ioli kunye ne-porosity enkulu. I-resin ifunxa iiplasticizers ngokukhawuleza kwaye inokusebenza kakuhle. Ukubunjwa kwe-extrusion (ezifana neeprofayili), nangona imfuneko ye-resin porosity ayiphezulu kakhulu, ii-pores ngaphakathi kweengqungquthela zineempembelelo ezintle ze-adsorption ekongezwe kwezongezelelo ngexesha lokucubungula, ukukhuthaza ukusebenza kwezongezo.
6. Ubumhlophe
Ubumhlophe bubonakalisa ukubonakala kunye nombala we-resin, kunye nokuthotywa okubangelwa ukuzinza okungahambi kakuhle kwe-thermal okanye ukugcinwa kwexesha elide, okubangelwa ukuhla okukhulu kobumhlophe. Umgangatho wobumhlophe unempembelelo ebalulekileyo ekuchaseni ukuguga kwemithi kunye neemveliso.
7. Umxholo we-vinyl chloride oseleyo
Intsalela ye-VCM ibhekisa kwinxalenye ye-resin engazange idsorbed okanye inyibilikiswe kwi-polyethylene monomer, kwaye umthamo wayo wokubhengeza uyahluka ngokuxhomekeka kuhlobo lwe-resin. Kwizinto ezishiyekileyo zeVCM, ezona zinto ziphambili zibandakanya ubushushu obuphantsi obuphezulu benqaba yokuhlubula, ukuhluka koxinzelelo olugqithisileyo kwinqaba, kunye ne-resin engalunganga ye-particle morphology, zonke ezinokuthi zichaphazele i-VCM residue desorption, esisisalathisi sokulinganisa inqanaba lococeko. iintlazi. Kwiimveliso ezikhethekileyo, ezifana ne-tin foil elukhuni iingxowa zokupakisha ifilimu ecacileyo kumayeza onyango, umxholo oseleyo we-VCM we-resin awukho kumgangatho (ngaphantsi kwe-5PPM).
8. Ukuzinza kwe-thermal
Ukuba umxholo wamanzi kwi-monomer uphezulu kakhulu, uya kuvelisa i-asidi, idle izixhobo, yenza inkqubo ye-polymerization yensimbi, kwaye ekugqibeleni ichaphazele ukuzinza kwe-thermal yemveliso. Ukuba i-hydrogen chloride okanye i-chlorine yamahhala ikhona kwi-monomer, iya kuba nemiphumo emibi kwi-polymerization reaction. I-Hydrogen chloride ixhomekeke kwifom emanzini, eyanciphisa ixabiso le-pH yenkqubo ye-polymerization kwaye ichaphazela ukuzinza kwenkqubo ye-polymerization. Ukongezelela, umxholo ophezulu we-acetylene kwi-monomer yemveliso ichaphazela ukuzinza kwe-thermal ye-PVC phantsi kwefuthe le-synergistic ye-acetaldehyde kunye nentsimbi, echaphazela ukusebenza kwemveliso.
9. Intsalela ye-Sieve
I-sieve ye-sieve ibonisa iqondo lobungakanani obungalinganiyo be-particle ye-resin, kwaye izinto zayo eziphambili ezichaphazelayo ziyi-dispersant kwi-polymerization formula kunye nefuthe elishukumisayo. Ukuba i-resin particles i-coarse kakhulu okanye ihle kakhulu, iya kuchaphazela ibakala le-resin kwaye ibe nefuthe ekuqhutyweni okulandelayo kwemveliso.
10. “Iliso Lentlanzi”
"Iliso lentlanzi", elikwabizwa ngokuba yi-crystal point, libhekisela kumasuntswana e-resin ecacileyo angazange afakwe iplastiki phantsi kweemeko eziqhelekileyo zokulungiswa kwe-thermoplastic. Impembelelo kwimveliso eyiyo. Eyona nto iphambili ye "iliso lentlanzi" kukuba xa umxholo wezinto ezibilisayo eziphezulu kwi-monomer uphezulu, uchitha i-polymer ngaphakathi kwiinqununu ngexesha lenkqubo ye-polymerization, iyanciphisa i-porosity, yenza amaqhekeza abe nzima, kwaye abe "intlanzi" yesikhashana. iliso” ngexesha lokwenziwa kweplastiki. Umqalisi usasazwa ngokulinganayo kumathontsi e-oyile ye-monomer. Kwinkqubo ye-polymerization enokutshintshwa kobushushu obungalinganiyo, ukubunjwa kwe-resin enobunzima obungalinganiyo be-molecular, okanye ukungahlambuluki kwe-reactor ngexesha lokutya, i-resin eseleyo, okanye ukunamathela ngokugqithiseleyo kwezinto ze-reactor zonke zingabangela "i-fisheye". Ukuqulunqwa "kwamehlo eentlanzi" kuchaphazela ngokuthe ngqo umgangatho weemveliso ze-PVC, kwaye ekusebenzeni okulandelayo, kuya kuchaphazela i-aesthetics yomhlaba weemveliso. Iya kunciphisa kakhulu iipropathi zoomatshini ezinje ngokuqina kokuqina kunye nokwandiswa kweemveliso, ezinokukhokelela ngokulula ekubhobhozeni iifilimu zeplastiki okanye amaphepha, ngakumbi iimveliso zentambo, eziya kuchaphazela iipropathi zazo zokugquma umbane. Ngenye yezibonakaliso ezibalulekileyo kwimveliso ye-resin kunye nokulungiswa kweplastiki.
Ixesha lokuposa: Jun-12-2024
