Maonero akazara epurasitiki masterbatch
Plastic masterbatchinogona kuonekwa sema polymersmasterbatch.Mapolymers anogona kugadzirwa kubva kumarudzi akasiyana-siyana e'mers' anomiririra makemikari zvikamu.Zvizhinji zvemakemikari zvikamu zvinotorwa kubva kumafuta kana mamwe mahydrocarbon.MaHydrocarbons akafanana sezvaanoita, akagadzirwa nehydrogen uye kabhoni.Saka, mapurasitiki anogadzirwa ne (kunyanya) hydrogen uye kabhoni akaunganidzwa pamwechete kuti agadzire mers (senge ethylene kana propylene) uyezve mamers aya anobatana kuti aumbe cheni uye kana maketani aya akareba kuita 'poly' kazhinji kana zvishoma. 100 yemamers akabatana pamwechete, tinosvika pakuva nepurasitiki / polymeric zvinhu.
Plastic masterbatchndevemhuri yethermoplastic inoumbwa nemamorekuru echeni refu anosanganisira kunyanya kabhoni nehydrogen anonzi mapolymer.Izwi rinobatanidza "poly" richireva kune akawanda uye "mer" richireva imwe molecular inodzokorora mayuniti akasungwa pamwechete.Izvo zvinosanganisirwa zvemhando dzakasiyana dzemapurasitiki, kusimba kwemamorekuru zvisungo zvinobata mers kune mumwe nemumwe uye kureba kwemaketani epolymer ndizvo zvekutanga zvinotarisisa zvezvinhu zvepurasitiki.Mamwe mapurasitiki anochinjanisa anopfuura rudzi rumwe rwemayunitsi.
Plastikimasterbatchvemhuri ye thermoset nepo vakafanana nevanotsanangurwa pamusoro vane hukama hwakasiyana pakati pemers kusanganisira macross-links anovapa akasiyana siyana anosanganisira mune inouya yakakwira tembiricha kugona uye kusakwanisa kunyunguduka isati yaora sezvo tembiricha inowedzera.
Kupwanya purasitiki masterbatch
Zvizhinjiplastic masterbatchyakatsemuka muma crackers!
Steam crackers mune chikuru.Asi kwete chete.
Kune boka rose re thermoplastics rinotorwa kubva kune yakasvibiswa inonzi ethylene.Uye ethylene inogadzirwa nenzira dzakasiyana-siyana, kunyanya kubva kumafuta kana gasi feedstock.
Imwe nzira yakakurumbira ndeyekuisa feedstock mune inoputika cracker uye inobuda ethylene, pamwe nezvimwe zvinhu zvakare.Iyo ethylene inobva yaiswa mu polyethylene kana polypropylene kunyanya asi kwete chete.PVC, PS, PET, butadiene inogadzirwawo.
Hechino chidimbu chechimwe chinyorwa chinotsanangura izvozvoplastic masterbatchzviri nani:
“Ethylene ndiyo panotangira zvigadzirwa zvina zvakura kwazvo: polyethylene (mhando nhatu: LDPE, LLDPE, uye HDPE), ethylene oxide, ethylene dichloride (inotangira vinyl chloride monomer), uye ethylbenzene (inotangira styrene).Zvidiki-vhoriyamu, zvigadzirwa zvine hunyanzvi zvinosanganisira mutsara α-olefins, vinyl acetate monomer, uye synthetic ethanol, nezvimwe.
Inotevera rondedzero yeimwe yakakurumbira ethylenemasterbatchzvigadzirwa:
| PVA Poly (vinyl acetate), poly (vinyl doro) | PET Poly (ethylene terephthalate) |
| PVC Poly (vinyl chloride) | PS Polystyrene |
| LLDPE Linear yakaderera-density polyethylene | PEG Poly (ethylene glycol) |
| LDPE Yakaderera-density polyethylene | HDPE High-density polyethylene |
Parizvino, nzira yekugadzira inoenda kuethylene ndeyekupwanya gaseous feedstocks (ethane, propane, kana butane) kana mvura yekudyisa (naphtha kana gasi mafuta).Patembiricha yakakwira zvakanyanya kubva pa850 Celsius dhigirii kana zvakanyanya, iwo akateedzana akateedzana emakanika asina-catalytic cracking aitwa.Ethylene ndiyo yakagadzirwa;asi mamwe mamorekuru anokosha ekuvaka, akadai sepropylene, butadiene, uye benzene, anogadzirwa pamwe chete.
Goho rechimwe nechimwe coproduct kazhinji ibasa reiyo feedstock inoshandiswa.Kupwanya ethane kunopa anenge asina coproducts;asi kuputika naphtha kunopa huwandu hwakawanda hwepropylene, butadiene, uye benzene.Sekuonekwa kwepasirese, kutsemuka kwemhepo kunogona kuonekwa sechimwe chezvinhu zvakakosha zvebutadiene, propylene uye inotungamira sosi yebenzene.Mufananidzo unotevera unoratidza hurongwa hwehurongwa hwemichina yekupwanya kupfungaira nenzira iri nyore.
Nguva yekutumira: Kubvumbi-07-2022