Polyethylene waxluhlobo lwewax eyenziwe nge-polyolefin, ebhekisa ngokubanzi kwi-homopolyethylene enobunzima bemolekyuli obungaphantsi kwe-10000. Kwingqiqo ebanzi, iipolymers ze-ethylene ezinamandla aphantsi kunye nokuqina kwaye azikwazi ukucutshungulwa njengento enye inokubizwa ngokuba yi-polyethylene wax.Pe waxinendawo ephezulu yokuthambisa, i-viscosity enyibilikayo ephantsi, uzinzo oluhle lweekhemikhali, ukuthambisa okulungileyo kunye nolwelo.Njengoncedo lokucubungula, isetyenziswa ngokubanzi kwimibhobho ye-PVC, iifilimu, iintambo kunye nezinye iimveliso zeplastiki kunye neerabha zokuphucula ukusebenza kweemveliso kunye nokuphucula ukubonakala kweemveliso ezigqityiweyo.

Indlela yokulungiselela i-wax ye-polyethylene
Kukho iindlela ezintathu eziphambili zokwenziwa kwe-pe wax.Eyokuqala yindlela yokuqhawula i-polyethylene, ephula i-polyethylene resin kwi-wax ye-polyethylene kunye nobunzima obuphantsi be-molecular kwiqondo lokushisa eliphezulu.Okwesibini yindlela yokucoca ngemveliso, eqokelela imveliso yezinto eziphantsi ze-molecular weight components eziveliswa kwinkqubo yokuvelisa i-ethylene polymerization kwaye ihlambulule ukuba ifumane i-polyethylene wax.Indlela yesithathu yi-ethylene synthesis method, eyenza ngokuthe ngqo i-polyethylene wax kunye ne-ethylene njengento ekrwada.Namhlanje, i-Sainuo iya kukuthatha ukuba ufunde malunga ne-wax ye-polyethylene elungiselelwe indlela yokuqhekeka kunye nendlela yokudibanisa.

(1) Ukulungiswa kwe-polyethylene wax nge-pyrolysis
Indlela yokuqhaqha yindlela ephambili yokuvelisa i-polyethylene wax e-China.Ubunzima obuphezulu bemolekyuli ecocekileyo i-polyethylene okanye inkunkuma yeplastiki ye-polyethylene iqhekezwe kwi-wax ye-polyethylene kubushushu obuphezulu.Umgangatho wayo wemveliso kunye neempawu (ezifana nobunzima, indawo yokunyibilika kunye nombala obonakalayo) zichaphazeleka kakhulu ngumthombo wokuqhekeka kwezinto eziluhlaza.Indlela yokuqhekeka inobuchwepheshe obulula, umthombo ocebileyo wezinto eziluhlaza kunye neendleko eziphantsi zokusebenza.Inokuqonda ukusetyenziswa kwakhona kwenkunkuma ye-polyethylene kunye neenzuzo ezilungileyo zoqoqosho.Nangona kunjalo, inkqubo yokuqhekeka inzima ukuyilawula, ukusabalalisa ubunzima be-molecular yemveliso kubanzi, umgangatho we-polyethylene wax kunzima ukulawula, kwaye amaninzi amabala amnyama aveliswa.Iyathandwa phakathi kunye nezicelo ezisezantsi ezifana ne-masterbatch yombala.
Iinkqubo ezikhoyo zokuqhekeka zibandakanya ukuqhekeka kwe-thermal, i-solvent incedise ukuqhekeka kunye nokuqhekeka kwe-catalytic.Phakathi kwabo, ukuqhekeka kwe-thermal yeyona nto ilula.Iimveliso ze-wax ze-polyethylene zinokulungiswa ngokulawula ubushushu bokusabela kunye nexesha, kodwa ukusetyenziswa kwamandla kuyafuneka.Abantu abavela kwiYunivesithi yaseBeijing yeteknoloji yekhemikhali baye bafunda ukulungiswa kwe-polyethylene wax ngokuqhekeza i-PE resin kwiqondo lokushisa eliphezulu kwi-screw extruder enye.I-heater yongezwa kumbhobho wokudibanisa phakathi kwe-extruder kunye netanki yokupholisa ukutshisa kunye nokuqhekeza izinto.Ubushushu obuphezulu bokuqhekeka yi-420 ℃, ukuqonda ukuveliswa okuqhubekayo kokuqhekeka kwe-PE resin ukulungiselela i-wax ye-polyethylene.Abanye baye bafunda ukulungiswa kwe-polyethylene wax ngokukrazula inkunkuma ye-polyethylene kwi-autoclave ene-al-mcm-48 njenge-catalyst.Ubushushu bokusabela yi-360 ~ 380 ℃ kwaye ixesha lokuphendula yi-4H.Ukusetyenziswa kwe-catalyst kunciphisa ukusabela kusebenze amandla, ubushushu obufunekayo kwi-pyrolysis kunye nokusetyenziswa kwamandla.U-Wang Lulu kunye nabanye baphucula isivuno se-polyethylene wax nge-solvent encedisa i-pyrolysis yeeplastiki zenkunkuma ye-polyethylene.Iziphumo zezinyibilikisi ezahlukeneyo kunye neemeko zokusabela kwisivuno kunye neempawu ze-wax zaphandwa.Uvavanyo lubonisa ukuba isivuno se-wax ye-polyethylene sinokuphuculwa ngokusebenzisa izinyibilikisi eziqholiweyo.Xa usebenzisa ixylene exutyiweyo njengesinyibilikisi, isivuno siphezulu ukuya kuma-87.88%.Izinyibilikisi ezinuka kamnandi zinokuphucula umgangatho wemveliso ukuya kuthi ga kumlinganiselo othile kwaye zifumane iwax etyheli yepolyethylene.

(2) Ukwenziwa kwe-polyethylene wax
I-polyethylene wax eyenziwe ngokuthe ngqo kwi-ethylene inobunyulu obuphezulu, ukusabalalisa ubunzima bemolekyuli encinci, uluhlu oluncinci lokunyibilika, ukusebenza kwemveliso ehlengahlengiswayo kunye nomgangatho ozinzile.Isetyenziselwa ukuvelisa umgangatho ophezulu kunye neentlobo ezahlukeneyo ze-wax ye-polyethylene.Ngokwendlela yepolymerization kunye neentlobo ze-catalysts ezisetyenzisiweyo, i-ethylene synthesis inokwahlulwa ibe yipolymerization yamahhala, i-Ziegler Natta (ZN) i-polymerization ye-catalytic, i-metallocene catalytic polymerization njalo njalo.
Qingdao Sainuo Chemical Co.,Ltd.Singabavelisi be-PE wax, i-PP wax, i-OPE wax, i-EVA wax, i-PEMA, i-EBS, i-Zinc / i-Calcium Stearate….Iimveliso zethu ziphumelele i-REACH, ROHS, PAHS, uvavanyo lwe-FDA.
Sainuo qiniseka wax, wamkele umbuzo wakho!
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