1. Viscosity nhamba
Iyo viscosity nhamba inoratidza avhareji yemamorekuru huremu hweresin uye ndiyo huru hunhu hwekuona rudzi rweresin. Izvo zvivakwa uye mashandisiro eiyo resin anosiyana zvichienderana neiyo viscosity. Sezvo dhigirii repolymerization yePVC resin rinowedzera, michina zvimiro zvakaita sekusimba kwesimba, simba rekuita, kutsemuka simba, uye kureba panguva yekuzorora kunowedzera, nepo goho richiderera. Mhedzisiro yekutsvagisa inoratidza kuti sezvo dhigirii repolymerization yePVC yekugadzirisa aids richiwedzera, izvo zvekutanga zvimiro zveresin zvinovandudza, ukuwo mashandiro ekugadzirisa uye rheological maitiro achidzikira. Zvinogona kuoneka kuti molecular uremu kugoverwa kwePVC resin ine hukama hwepedyo nepurasitiki kugadzirisa uye kuita kwechigadzirwa.
2. Kusachena kuverengeka (madotsi matema neyero)
Kusachena zvimedu chimwe chezviratidzo zvakakosha zvekuongorora PVC resin. Zvinhu zvikuru zvinokanganisa chiratidzo ichi ndezvi: chekutanga, zvakasara pamadziro ekuputira kettle yepolymerization hazvina kushambidzwa zvakakwana uye iyo yakasvibiswa yakasvibiswa netsvina; chechipiri, kupfeka kwemagetsi kwakasanganiswa netsvina uye kushanda kusina kunaka kunounza tsvina; Mukugadzirisa kwepurasitiki, kana kune zvidimbu zvakawandisa zvisina kuchena, zvichava nemigumisiro yakaipa pakuita uye kushandiswa kwezvigadzirwa zvePVC zvinogadzirwa. Semuenzaniso, mukugadzirisa uye kuumbwa kweprofiles, kune zvakawanda zvakasvibiswa uye zvimedu, izvo zvinogona kuita kuti mavara aonekwe pamusoro peprofile, nekudaro kuderedza kutaridzika kwechigadzirwa. Uye zvakare, nekuda kweiyo isiri plasticization yetsvina particles kana kuderera kwesimba kunyangwe plasticization, ma mechanic zvimiro zvechigadzirwa zvakaderedzwa.
3. Kuputika (kusanganisira mvura)
Ichi chiratidzo chinoratidza kuremerwa kweresin mushure mekupisa pane imwe tembiricha. Izvo zvakaderera zvezvinhu zvinoputika zvinogona kubudisa nyore nyore magetsi, izvo zvisingakwanisi kudyisa mashandiro panguva yekugadzira uye kuumbwa; Kana iyo inosarudzika yemukati yakakwira zvakanyanya, resin inokonzeresa kudonha uye kushomeka kwemvura, uye mabhubhu anogadzirwa zviri nyore panguva yekuumbwa uye kugadzirisa, izvo zvine kukanganisa pamhando yechigadzirwa.
4. Density inooneka
Kuwanda kwehuremu huremu pavhoriyamu yePVC resin poda iyo haina kudzvanywa. Iyo ine hukama neiyo particle morphology, avhareji saizi yechikamu, uye particle size kugovera resin. Yakaderera inooneka density, vhoriyamu hombe, kukurumidza kutorwa kweplasticizers, uye nyore kugadzirisa. Pane zvinopesana, yakakwira avhareji saizi density uye diki vhoriyamu inotungamira mukutorwa kwePVC kugadzirisa aids. Pakugadzirwa kwezvakaoma zvigadzirwa, iyo molecular uremu inodikanwa haina kukwirira, uye plasticizers kazhinji haawedzerwe panguva yekugadziriswa. Naizvozvo, iyo porosity yezvimedu zveresin inodiwa kuve yakaderera, asi pane chinodiwa kune yakaoma kuyerera kweiyo resin, saka inooneka density yeresin inowirirana yakakwirira.
5. Plasticizer kutora resin
Huwandu hwekunyura hwePVC kugadzirisa aids hunoratidza chiyero chepores mukati mezvimedu zveresin, nehupamhi hwekunyudza mafuta uye porosity yakakura. Iyo resin inotora plasticizers nekukurumidza uye ine yakanaka yekugadzirisa kuita. Kune extrusion molding (yakadai seprofiles), kunyangwe iyo inodiwa ye resin porosity haina kunyanya kukwirira, ma pores mukati mezvikamu ane yakanaka adsorption mhedzisiro pakuwedzerwa kwezvinowedzera panguva yekugadzirisa, zvichikurudzira kushanda kwezvinowedzera.
6. Kuchena
Kuchena kunoratidza kutaridzika uye ruvara rwe resin, pamwe nekudzikira kunokonzerwa nekusagadzikana kwekupisa kwekupisa kana nguva yekuchengetedza kwenguva refu, zvichikonzera kuderera kukuru kwekuchena. Chiyero chekuchena chine simba rakakosha pakuramba kuchembera kwemiti uye zvigadzirwa.
7. Yakasara vinyl chloride content
VCM residue inoreva chikamu cheresin isina kushambadzirwa kana kunyungudika mu polyethylene monomer, uye kugona kwayo kweadsorption kunosiyana zvichienderana nerudzi rweresin. Mune chaiwo VCM zvakasara zvinhu, izvo zvakakosha zvinosanganisira kuderera kwepamusoro tembiricha yeshongwe yekubvisa, yakawandisa kudzvanywa musiyano mushongwe, uye yakashata resin particle morphology, izvo zvese zvinogona kukanganisa VCM residue desorption, inova chiratidzo chekuyera hutsanana hutsanana. resin. Kune zvigadzirwa zvakakosha, senge tin foil yakaoma yakajeka firimu yekurongedza mabhegi emishonga yekurapa, yasara yeVCM yemukati yeresin haina kusvika pachiyero (pasi pe5PPM).
8. Thermal kugadzikana
Kana mvura iri mumonomeri yakanyanya kuwanda, inoburitsa acidity, inokanganisa midziyo, inogadzira iron polymerization system, uye pakupedzisira inokanganisa kugadzikana kwekupisa kwechigadzirwa. Kana hydrogen chloride kana yemahara chlorine iripo mumonomeri, ichava nemhedzisiro yakaipa pane polymerization reaction. Hydrogen chloride inowanzoita mumvura, iyo inoderedza pH kukosha kwepolymerization system uye inokanganisa kugadzikana kwepolymerization system. Mukuwedzera, iyo yakakwirira yeacetylene mune monomer yechigadzirwa inokanganisa kugadzikana kwekupisa kwePVC pasi pe synergistic effect yeacetaldehyde uye iron, iyo inokanganisa kushanda kwechigadzirwa.
9. Sieve yakasara
Iyo sieve inosara inoratidza dhigirii rekusaenzana chidimbu saizi yeresin, uye iyo huru inofurira zvinhu huwandu hwekupararira mupolymerization formula uye inosimudzira mhedzisiro. Kana iyo resin zvimedu zvakanyanyisa kana kuti yakanyanya kunaka, zvinokanganisa giredhi resin uye zvakare zvine chekuita nekutevera kugadziridzwa kwechigadzirwa.
10. "Ziso reHove"
"Ziso rehove", iro rinozivikanwawo sekristaro point, rinoreva twunhu twakajeka tusina kuiswa epurasitiki pasi pezvakajairwa thermoplastic kugadzirisa mamiriro. Impact mukugadzirwa chaiko. Chinhu chikuru che "ziso rehove" ndechekuti kana zviri mukati mezvinhu zvakabikwa zvakanyanya mumonomer zvakakwirira, inonyungudutsa polymer mukati mezvikamu panguva ye polymerization process, inoderedza porosity, inoita kuti zvimedu zviome, uye inova "hove" yenguva pfupi. ziso" panguva yekugadzira plasticization. Iyo yekutanga yakagoverwa zvisina kuenzana mumadonhwe emafuta emonomeri. Mune polymerization system ine kusaenzana kwekupisa kupisa, kuumbwa kweresin ine huremu husina kuenzana hwemamorekuru, kana kusachena kweiyo reactor panguva yekudya, yakasara resin, kana kunamatira zvakanyanya kweiyo reactor zvinhu zvese zvinogona kukonzera "fisheye". Kuumbwa kwe "maziso ehove" kunobata zvakananga kunaka kwezvigadzirwa zvePVC, uye mukugadzirisa kunotevera, zvichakanganisa aesthetics yepamusoro yezvigadzirwa. Ichadzikisawo zvakanyanya ma mechanic properties senge kusimba kwesimba uye kurebesa kwezvigadzirwa, izvo zvinogona kutungamira zviri nyore mukupwanya kwemafirimu epurasitiki kana mashiti, kunyanya zvigadzirwa zvetambo, izvo zvinokanganisa maitiro avo emagetsi ekudzivirira. Icho chimwe chezviratidzo zvakakosha mukugadzira resin uye kugadzirwa kwepurasitiki.
Nguva yekutumira: Jun-12-2024
