Mukugadzirisa kweprofile, lubricant inoshandiswa yakasiyana nekuda kwemaitiro akasiyana akagadzikana.Mune inotungamira munyu kudzikamisa system, stearic acid, glyceryl stearate uye polyethylene wax inogona kusarudzwa semafuta;mune isiri-chepfu calcium zinc composite stabilization system uye isingawanzo pasi inoumbwa kudzikamisa system, stearic acid, butyl stearate, parafini, pe wax uye calcium stearate inogona kusarudzwa semafuta;mune organic tin formula, calcium stearate, parafini, oxidized polyethylene wakisi inogona kusarudzwa semafuta.Zvinhu zvikuru zvemafuta akajairika ndeaya anotevera:
(1) Calcium stearate
Hupfu chena, nzvimbo yekunyunguduka 148-155 ℃, isiri-chepfu, yakanakisa lubricity uye processability, isina kusvibiswa kwesulfide, inoshandiswa pamwe chete neinotungamira munyu uye sipo yemutobvu, inogona kuvandudza kumhanya kwegel, uye dosi yacho inowanzo 0.1-0.4PHR.
(2) Polyethylene wakisi
Hupfu chena, kupfava poindi inenge 100-117 ℃.Nekuda kwehuremu hwayo hwemamorekuru, yakakwira kunyungudika uye kuderera kwakadzikama, inoratidzawo zviri pachena kuisa mafuta pakupisa kwepamusoro uye shear rate.Inokodzera kuomarara PVC imwe uye twin screw extrusion, ine huwandu hwakajairwa hwe 0.1-0.5PHR.
(3) Oxidized polyethylene wakisi
Ichena kana yero yehupfu kana chidimbu, oxidized polyethylene wakisi ichiri kusawirirana nePVC, kunyangwe iine mashoma emapoka epolar, asi iyo lubrication inoshanda yakakwira, iyo inogona kuvandudza lubrication pakati pepolymer nesimbi, kuvandudza extrusion kunyatsoita, kugadzirisa kupararira kwemavara, uye kupa zvigadzirwa kujeka uye kupenya kwakanaka.Dosage 0.1-0.5PHR.
(4) Stearic asidhi
Zvimedu zvichena kana zvero, zvinonyunguduka 70-71 ℃.Inoputika zvishoma nezvishoma pa90-100 ℃.Inoshandiswa semafuta ekunze mukugadzirisa kwePVC yakaoma.Mari yacho inowanzoita 0.2-0.5PHR, uye ine mhedzisiro yekudzivirira chromatography scaling, asi zviri nyore kupfapfaidza chando kana huwandu hwakanyanya.
(5) Parafini wakisi
Melting point 57-63 ℃, isina mapoka epolar, ndiyo yakajairika yekunze lubricant.Nekuda kwenzvimbo yakadzika yekunyungudika, kunyungudika kuri nyore, uye kunyungudika kwakadzika, inogona chete kutamba basa rekuzora mune nhete.Yakakodzera extrusion ne single uye twin screw extruders, ine general dosage ye 0.1-0.8PHR.Ichi chigadzirwa hachina kujeka uye chiri nyore kuita chichena.
Mukuita, zvinoonekwa kuti kana maviri kana anopfuura mafuta emafuta akashandiswa pamwechete, ane maitiro akasiyana pane paanoshandiswa ega.Mukugadzirwa kwezvinhu zveprofile, mazhinji acho anosanganiswa.Iyo yekufananidza sisitimu uye hunhu hweakajairika lubricant inopfupikiswa sezvizvi:
(1) Calcium stearate - Parafini (polyethylene wax) lubrication system
Kushandiswa kwecalcium stearate chete muforoma kunogona kumhanyisa plasticization, kunatsiridza kunyunguduka viscosity, kuwedzera torque, uye kuve nekumwe kudhonzesa maitiro.Kushandiswa kweparafini chete kunoratidza kunonoka kwepurasitiki, yakaderedzwa torque, uye hapana dhizaini mhedzisiro.Kana calcium stearate uye parafini wax (polyethylene wax) yakasanganiswa mune imwe chikamu, inoratidza mhedzisiro yakanaka, uye torque kukosha kwezvinhu kunogona kuderedzwa zvakanyanya.Izvi zvinodaro nekuti parafini inopinda mukati me calcium stearate molecules, ichisimbisa lubrication, kuratidza yakasimba synergistic mhedzisiro, uye kuvandudza kupararira kwemafuta.
(2) Stearic asidhi - Parafini (polyethylene wax) lubricating system
Iyo michina yakafanana neye calcium stearate - Parafini (polyethylene wax) system, iyo inogona kuvandudza kugadzikana kwekupisa kwefomula, kuderedza shrinkage, kunatsiridza fluidity, uye kufambisa dhizaini.
(3) Oxidized polyethylene wax - esters - calcium stearate
Kana polyethylene wax, ester uye calcium stearate zvichishandiswa pamwe chete, nguva yeplasticizing iri pachena inorebeswa nekuwedzera kwe polyethylene wax huwandu, nepo apo oxidized polyethylene wax, parafini wax, ester uye calcium stearate zvinoshandiswa pamwe chete, nguva yepurasitiki inowedzera kutanga uye. zvobva zvadzikira nekuwedzera kweoxidized polyethylene wax, zvichiratidza zviri pachena synergistic effect.
Mukupedzisa, kana uchidzidza iyo PVC profil formula, zvinodikanwa kuti unzwisise kwete chete maitiro uye mabasa ega ega lubricant, asiwo synergistic mhedzisiro pakati pavo.Pamusoro pezvo, iyo PVC mbiri fomula inoda kugadziridzwa uye kuchinjwa zvichienderana nekusiyana kwemidziyo yekugadzirisa uye mold.
Kana iwe uchida mafuta akakodzera, huya kuQingdao Sainuo!
Qingdao Sainuo Chemical Co., Ltd.Isu tiri kugadzira PE wakisi, PP wax, OPE wax, EVA wax, PEMA, EBS, Zinc/Calcium Stearate….Zvigadzirwa zvedu zvakapfuura REACH, ROHS, PAHS, FDA yekuongorora.
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Nguva yekutumira: Zvita-27-2022