Polyethylene wax i-polyethylene ene-molecular weight ephantsi (<1000), kwaye iyinto encedisayo eqhelekileyo kwishishini lokulungisa iplastiki.Ukusetyenziswa kwe-wax ye-polyethylene ekubunjweni kweplastiki ye-extrusion kunokuphucula ubuninzi bezinto eziphathekayo, ukwandisa imveliso, kunye nokuvumela ukugxininiswa okuphezulu kokuzalisa.

Pe waxisetyenziswa kakhulu kumbala we-masterbatch processing.Injongo yokongeza i-wax ye-polyethylene ayikona nje ukuguqula ukusebenza kwenkqubo ye-masterbatch yombala, kodwa nokukhuthaza ukusasazwa kwee-pigments kwi-masterbatch yombala.Ukusasazwa kwe-pigment kubaluleke kakhulu kumbala we-masterbatch, kwaye umgangatho we-masterbatch yombala uxhomekeke ikakhulu ekusasazekeni kwe-pigment.Ukusasazwa kakuhle kwee-pigments, amandla aphezulu ombala we-masterbatch yombala, umgangatho olungileyo weemveliso, kunye nexabiso eliphantsi.I-wax ye-polyethylene inokuphucula inqanaba lokusasazwa kwe-pigment ukuya kwinqanaba elithile, kwaye i-dispersant eqhelekileyo kwimveliso ye-masterbatch yombala.Ngenxa yeendlela ezahlukeneyo zokuvelisa, i-wax ye-polyethylene inokwahlulwa ibe ziindidi ezimbini: uhlobo lwe-polymerization kunye nohlobo lwe-pyrolysis.Eyokuqala yimveliso ye-polymerization ephezulu yoxinzelelo lwe-polyethylene, kwaye le yokugqibela yenziwe nge-polyethylene thermal cracking.Ngenxa yokuba i-wax ye-polyethylene ene-molecular structure ingahlulwa ibe yi-high and low density, efana ne-polyethylene.Ngenxa yokwahluka kwendlela yokuvelisa, ubuninzi, ubunzima bemolekyuli, ukusabalalisa ubunzima bemolekyuli kunye nesakhiwo semolekyuli ye-wax ye-polyethylene, ukusebenza kwayo kwesicelo kwi-masterbatch yombala ikwahlukile.

Ukulungiswa kwe-polyethylene wax nge-pyrolysis
I-Pyrolysis yindlela ephambili yokuvelisa i-polyethylene wax e-China.Ubunzima obuphezulu bemolekyuli ecocekileyo ye-polyethylene okanye inkunkuma yeplastiki ye-polyethylene i-pyrolysed ibe yi-wax ye-polyethylene kwiqondo lokushisa eliphezulu.Umgangatho wayo wemveliso kunye neempawu (ezifana nobunzima, indawo yokunyibilika, umbala obonakalayo, njl. njl.) zichaphazeleka kakhulu ngumthombo wokuqhekeka kwezinto eziluhlaza.Inkqubo ye-pyrolysis ilula, umthombo wezinto ezibonakalayo ucebile, kwaye iindleko zokusebenza ziphantsi.Inokuqonda ukusetyenziswa kwakhona kwenkunkuma ye-polyethylene, kunye neenzuzo ezilungileyo zoqoqosho.

Iinkqubo ezikhoyo zokuqhekeka ziquka ukuqhekeka kwe-thermal, ukuchithwa kwe-solvent-assisted kunye ne-catalytic cracking.Phakathi kwabo, ukuqhekeka kwe-thermal yeyona nto ilula.Iimveliso ze-wax ze-polyethylene zinokulungiswa ngokulawula ubushushu bokuphendula kunye nexesha, kodwa kufuna ukusetyenziswa kwamandla amaninzi.

U-Xue Ping kunye nabanye abavela kwiYunivesithi yaseBeijing ye-Chemical Technology benza uphando malunga nokulungiswa kwe-polyethylene wax nge-pyrolysis ye-PE resin kwiqondo lokushisa eliphezulu kwi-extruder eyodwa-screw.I-heater yongezwa kumbhobho wokudibanisa phakathi kwe-extruder kunye netanki yokupholisa ukutshisa izinto ezikuyo, kwaye ubushushu obuphezulu bokuqhekeka kwakuyi-420 ℃, ukuqonda ukuveliswa okuqhubekayo kwe-polyethylene wax nge-pyrolysis ye-PE resin.

UZhang Jianyu kunye nabanye bafunda besebenzisa i-Al-MCM-48 njenge-catalyst yokwenza ukubola kwenkunkuma ye-polyethylene ukulungiselela i-polyethylene wax kwi-autoclave, kunye nobushushu bokusabela kwe-360 ~ 380 ℃ kunye nexesha lokuphendula le-4 h.Ukusetyenziswa kwe-catalyst kunciphisa ukusabela kusebenze amandla, ubushushu obufunekayo ekuqhekekeni kunye nokusetyenziswa kwamandla.U-Wang Lulu kunye nabanye baphucula isivuno se-polyethylene wax nge-solvent-assisted pyrolysis ye-polyethylene waste plastics, kwaye baphanda imiphumo yee-solvents ezahlukeneyo kunye neemeko zokusabela kwisivuno kunye nokusebenza kweemveliso ze-wax.Uvavanyo lubonisa ukuba isivuno se-wax ye-polyethylene sinokuphuculwa ngokusebenzisa izinyibilikisi eziqholiweyo, kwaye isivuno sinokufikelela kwi-87.88% xa usebenzisa i-xylene exutywe njenge-solvent.Izinyibilikisi ezinuka kamnandi zinokuphucula umgangatho wemveliso ukuya kuthi ga kwinqanaba elithile, kwaye i-wax etyheli ye-polyethylene ekhanyayo inokufumaneka.
Qingdao Sainuo Chemical Co.,Ltd.Singabavelisi be-PE wax, i-PP wax, i-OPE wax, i-EVA wax, i-PEMA, i-EBS, i-Zinc / iCalcium Stearate….Iimveliso zethu ziphumelele i-REACH, ROHS, PAHS, uvavanyo lwe-FDA.
Sainuo qiniseka wax, wamkele umbuzo wakho!
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Idilesi: Igumbi 2702, iBlock B, iSakhiwo seLanga, indlela iJingkou, iSithili saseLicang, iQingdao, eTshayina