Umbono jikelele weplastiki masterbatch
I-Plastiki masterbatchInokubonwa njenge-polymersmasterbatch.Iipolymers zinokwenziwa ngeendidi ezininzi ezahlukeneyo zee'mers' ezimele iiyunithi zekhemikhali.Uninzi lweeyunithi zeekhemikhali zithathwe kwi-oyile okanye ezinye ii-hydrocarbons.Iihydrocarbons zinjengoko zibonakala, zenziwe nge-hydrogen kunye nekhabhoni.Ngoko ke, iiplastiki zenziwe (ubukhulu becala) i-hydrogen kunye nekhabhoni eziye zadityaniswa ukuze zenze i-mers (njenge-ethylene okanye ipropylene) kwaye ke ezi mers zidibanisa ukwenza amatyathanga kwaye xa la matyathanga ede ngokwaneleyo ukuba abe 'poly' ngokuqhelekileyo xa ubuncinane. I-100 yee-mers idibene kunye, sifumana iplastiki / imathiriyeli yepolymeric.
I-Plastiki masterbatchzezosapho lwe-thermoplastic zenziwe ziimolekyuli zamatsheyini amade eziquka ikakhulu ikharbhon kunye nehydrogen ezibizwa ngokuba ziipolima.Eli gama lidibanisa “poly” lisingisele kuninzi kunye no “mer” lisingisele kwiiyunithi eziphindaphindwayo zemolekyuli ezidityaniswe kunye.Amacandelo e-mer eentlobo ezahlukeneyo zeeplastiki, amandla eebhondi ze-molekyuli ezibamba i-mers enye kwenye kunye nobude bemixokelelwane ye-polymer zizinto eziphambili zokumisela iimpawu zeplastiki.Ezinye iiplastiki zitshintshana ngaphezu kolunye uhlobo lweeyunithi ze-mer.
Iiplastikimasterbatchyentsapho thermoset ngelixa ezifanayo ezichazwe ngasentla unxibelelwano ezahlukeneyo phakathi mers kuquka cross-links ezibanika iipropati ezahlukeneyo kuquka eze iimeko ubushushu eliphezulu amandla kunye nokungakwazi ukunyibilika phambi ukubola njengoko ubushushu sanda.
Ukuqhawula i-masterbatch yeplastiki
Ezininziiplastiki masterbatchiqhekeziwe kwiicrackers!
Iicrackers zomphunga kwindawo ephambili.Kodwa hayi kuphela.
Kukho iqela elipheleleyo le-thermoplastics ephuma kwizinto eziluhlaza ezibizwa ngokuba yi-ethylene.Kwaye i-ethylene iveliswa ngeendlela ezahlukeneyo, ngakumbi ukusuka kwi-oyile okanye kwi-gas feedstock.
Enye indlela edume kakhulu kukubeka i-feedstock kwi-cracker yomphunga kunye neziphumo ze-ethylene, kunye nezinye izinto.I-ethylene ke ipholymerized ibe yi-polyethylene okanye i-polypropylene ikakhulu kodwa hayi kuphela.I-PVC, i-PS, i-PET, i-butadiene nayo yenziwe.
Nantsi isicatshulwa esivela kwinqaku elicacisa okoiplastiki masterbatchkungcono noko:
“Iethylene sisiqalo seemveliso ezine ezikhule kakhulu: ipolyethylene (iintlobo ezintathu: LDPE, LLDPE, neHDPE), i-ethylene oxide, i-ethylene dichloride (umanduleli wevinyl chloride monomer), kunye ne-ethylbenzene (isandulela se-styrene).Umthamo omncinci, iimveliso ezikhethekileyo zibandakanya i-alpha-olefins yomgama, i-vinyl acetate monomer, kunye ne-ethanol yokwenziwa, njl.
Okulandelayo luluhlu lwe-ethylene edumileyomasterbatchiimveliso:
| IPVA Poly(vinyl acetate), ipoly(vinyl alcohol) | I-PET Poly(ethylene terephthalate) |
| PVC Poly(vinyl chloride) | PS Polystyrene |
| LLDPE Umgca wepolyethylene yoxinaniso oluphantsi | PEG Poly(ethylene glycol) |
| I-LDPE I-Polyethylene yoxinaniso oluphantsi | I-HDPE I-polyethylene ephezulu yoxinaniso |
Ukuza kuthi ga ngoku eyona ndlela ibalaseleyo yokwenziwa kwe-ethylene kukuqhekeka komphunga we-gaseous feedstocks (i-ethane, ipropane, okanye i-butane) okanye i-liquid feedstocks (i-naphtha okanye i-oyile yerhasi).Kubushushu obuphezulu kakhulu obusuka kuma-850 isidanga seCelsius okanye ngaphezulu, olo luhlu lucwangcisiweyo lokuqhekeka okungoomatshini okungeyo-catalytic kuye kwaqhutywa.I-ethylene yimveliso ecetywayo;kodwa ezinye iimolekyuli ezixabisekileyo zebhloko, ezifana nepropylene, butadiene, kunye nebenzene, zenziwe ngokubambisana.
Isivuno se-coproduct nganye ubukhulu becala ngumsebenzi wesondlo esisetyenziswayo.Ukuqhekeka kwe-ethane kunika phantse akukho mveliso;kodwa i-naphtha yokuqhekeka ibonelela ngezixa ezikhulu zepropylene, butadiene, kunye nebenzene.Njengoko kujongwa kwihlabathi jikelele, ukuqhekeka komphunga kunokubonwa njengenye yezona zixhobo zibalulekileyo zebutadiene, ipropylene kunye nomthombo okhokelayo we-benzene.Lo mfanekiso ulandelayo ubonisa isikimu sothotho olucwangcisiweyo lokuqhekeka komphunga owenziwe ngoomatshini ngeyona ndlela ilula.
Ixesha lokuposa: Apr-07-2022