Silicone masterbatchimhando yekuwedzera muindasitiri yerabha nepurasitiki. Iyo tekinoroji yepamusoro mumunda wesilicone additives ndiko kushandiswa kweyakanyanya-yakakwirira molecular uremu (UHMW) silicone polymer (PDMS) mune akasiyana thermoplastic resins, senge LDPE, EVA, TPEE, HDPE, ABS, PP, PA6, PET, TPU. , HIPS, POM, LLDPE, PC, SAN, etc. Uye semapellets kuitira kuti ubvumire kuwedzera nyore kwekuwedzera zvakananga kune thermoplastic panguva yekugadzirisa. kubatanidza kugadzirisa kwakanakisa nemutengo unokwanisika. Iyo silicone masterbatch iri nyore kudyisa, kana kusanganisa, mumapurasitiki panguva yekubatanidza, extrusion, kana jekiseni kuumba. Zviri nani pane zvechinyakare wakisi mafuta uye zvimwe zvinowedzera mukuvandudza kutsvedza panguva yekugadzira. Saka, mapurosesa epurasitiki anosarudza kuvashandisa mukubuda.
Mabasa eSilicone Masterbatch additivemuKuvandudza Plastic Processing
Iyo silicone masterbatch ndeimwe yeanonyanya kufarirwa sarudzo dzema processor mukugadzirisa epurasitiki uye kuvandudzwa kwemhando yepamusoro. Semhando yemafuta ekuzora. Iyo ine anotevera mabasa makuru kana ichishandiswa mu thermoplastic resin:
A. Kuvandudza kuyerera kweresin uye kugadzirisa;
Zvirinani kuzadza mold uye mold kuburitsa zvivakwa
Deredza iyo extrude torque uye uvandudze iyo extrusion rate;
B. Inovandudza resin pamusoro pezvinhu
Kuvandudza iyo yepurasitiki yepasi kupedzisa, yakatsetseka dhigirii, uye kuderedza ganda friction coefficient, Kuvandudza kupfeka kuramba uye kukwenya kuramba;
Uye silicone masterbatch ine yakanaka yekudziya kugadzikana (kupisa kwekuora tembiricha inenge 430 ℃ munitrogen) uye isiri-migration;
Kuchengetedza kwezvakatipoteredza;
Kubata nekuchengetedza chikafu.
Isu tinofanirwa kutaura kuti ese masilicone masterbatches mabasa ndeayo A uye B (aya ari pamusoro mapoinzi atakanyora) asi haasi maviri akazvimirira mapoinzi asi.
vanowedzera mumwe kune mumwe, uye vane hukama hwepedyo.
Migumisiro pane zvigadzirwa zvekupedzisira
Nekuda kwehunhu hwemamorekuru chimiro che siloxane, dosi yacho idiki kwazvo saka pazere hapana mhedzisiro pamichina yezvigadzirwa zvekupedzisira. kazhinji kutaura, kunze kwekurebesa uye kusimba kwesimba kuchawedzera zvishoma, pasina mhedzisiro pane mamwe ma mechanic properties. Pachiyero chikuru, ine synergistic mhedzisiro ine murazvo wemoto retardant agents.
Pamusana pekushanda kwayo kwakatanhamara pakukwirira kwepamusoro uye kuderera-kupisa, hazvizovi nemigumisiro pahupamhi hwepamusoro uye hutsika hwekudzivirira kwezvigadzirwa zvekupedzisira. nepo kuyerera kweresin, kugadzirisa, uye zvivakwa zvepasi zvichavandudzwa zviri pachena uye COF ichaderedzwa.
Action mechanism
Silicone masterbatchesari ekupedzisira-akakwira molecular uremu polysiloxane akaparadzirwa akasiyana anotakura resin inova rudzi rwebasa masterbatch. Kana ultra-yakakwirira molecular uremusilicone masterbatcheszvinowedzerwa mumapurasitiki kune avo asiri epolar uye ane simba repasi pasi, ane maitiro ekutamira kune epurasitiki pamusoro panguva yekunyunguduka; nepo, sezvo ine hombe molecular uremu, haigoni kufamba kunze zvachose. Saka tinozvidaidza kuti kuwirirana uye kubatana pakati pekutama nekusatama. nekuda kwechinhu ichi, dhizaini yekuzora yakaumbwa pakati pepasi pepurasitiki uye screw.
Nekugadzirisa kuenderera mberi, iyi lubrication layer inogara ichibviswa uye ichigadzirwa. Saka kuyerera kweresin uye kugadzirisa kuri kuvandudzwa nguva dzose uye kuderedza magetsi emagetsi, torque yemidziyo uye kugadzirisa kubuda. Mushure mekugadzirwa kwetwin-screw, silicone masterbatches ichagovaniswa zvakaenzana mumapurasitiki uye kuita 1 kusvika 2-micron oiri particle pasi pemaikorosikopu, izvo zvimedu zvemafuta zvinopa zvigadzirwa kutaridzika zviri nani, kunzwa kwakanaka kwemaoko, kudzika COF, uye zvakanyanya. abrasion uye kuramba kukwenya.
Kubva pamufananidzo tinogona kuona kuti silicone ichave zvidimbu zvidiki mushure mekuparadzirwa mumapurasitiki, chinhu chimwe chatinofanira kuratidza ndechekuti dispersibility ndiyo kiyi index yesilicone masterbatches, madiki ezvikamu, zvakanyanya kugoverwa, mhedzisiro iri nani. tichawana.
Nguva yekutumira: May-26-2023
