Cov tshuaj silicone masterbatchyog ib hom tshuaj ntxiv rau hauv kev lag luam roj hmab thiab yas. Cov thev naus laus zis siab heev hauv kev siv cov tshuaj ntxiv silicone yog kev siv cov khoom siv ultra-high molecular weight (UHMW) silicone polymer (PDMS) hauv ntau yam thermoplastic resins, xws li LDPE, EVA, TPEE, HDPE, ABS, PP, PA6, PET, TPU, HIPS, POM, LLDPE, PC, SAN, thiab lwm yam. Thiab ua cov pellets kom yooj yim ntxiv cov tshuaj ntxiv rau thermoplastic thaum lub sijhawm ua tiav. kev sib xyaw ua ke zoo heev nrog tus nqi pheej yig. Lub silicone masterbatch yooj yim pub, lossis sib tov, rau hauv cov yas thaum lub sijhawm sib xyaw, extrusion, lossis txhaj tshuaj molding. Nws zoo dua li cov roj quav ciab ib txwm muaj thiab lwm yam tshuaj ntxiv hauv kev txhim kho kev plam thaum lub sijhawm tsim khoom. Yog li, cov neeg ua haujlwm yas nyiam siv lawv hauv cov zis.
Lub luag haujlwm ntawmCov khoom siv ntxiv silicone masterbatchhauv kev txhim kho kev ua yas
Cov silicone masterbatch yog ib qho ntawm cov kev xaiv nrov tshaj plaws rau cov processors hauv kev ua yas thiab kev txhim kho qhov zoo ntawm qhov chaw. Ua ib hom super lubricant. Nws muaj cov haujlwm tseem ceeb hauv qab no thaum siv rau hauv thermoplastic resin:
A. Txhim kho cov dej ntws ntawm cov resin thiab kev ua tiav;
Cov yam ntxwv zoo dua ntawm kev sau pwm thiab kev tso pwm tawm
Txo qhov extrude torque thiab txhim kho qhov extrusion rate;
B. Txhim kho cov khoom ntawm cov resin
Txhim kho qhov tiav ntawm cov yas, qib du, thiab txo cov coefficient sib txhuam ntawm daim tawv nqaij, Txhim kho qhov hnav tsis kam thiab khawb tsis kam;
Thiab silicone masterbatch muaj kev ruaj khov zoo thermal (thermal decomposition kub yog li 430 ℃ hauv nitrogen) thiab tsis tsiv teb tsaws chaw;
Kev tiv thaiv ib puag ncig;
Kev sib cuag nrog cov khoom noj khoom haus muaj kev nyab xeeb.
Peb yuav tsum taw qhia tias tag nrho cov haujlwm ntawm silicone masterbatches yog A thiab B (ob lub ntsiab lus saum toj no peb tau teev tseg) tab sis lawv tsis yog ob lub ntsiab lus ywj pheej tab sis
sib pab sib txhawb, thiab sib txuas lus zoo heev.
Cov teebmeem rau cov khoom kawg
Vim yog cov yam ntxwv ntawm cov qauv molecular ntawm siloxane, qhov koob tshuaj me me heev yog li ntawm tag nrho yuav luag tsis muaj kev cuam tshuam rau cov khoom siv kho tshuab ntawm cov khoom kawg. feem ntau hais lus, tsuas yog elongation thiab cuam tshuam lub zog yuav nce me ntsis, tsis muaj kev cuam tshuam rau lwm yam khoom siv kho tshuab. Ntawm qhov ntau npaum li cas, nws muaj kev cuam tshuam synergistic nrog cov neeg sawv cev nplaim taws.
Vim nws qhov kev ua tau zoo tshaj plaws ntawm kev tiv taus kub thiab qis, nws yuav tsis muaj kev phiv rau kev tiv taus kub thiab qis ntawm cov khoom kawg. thaum cov dej ntws ntawm cov resin, kev ua tiav, thiab cov khoom nto yuav raug txhim kho kom pom tseeb thiab COF yuav raug txo qis.
Txoj kev ua haujlwm
Cov tshuaj silicone masterbatchesyog cov polysiloxane hnyav molecular siab heev uas tau faib ua ntau hom resins uas yog ib hom masterbatch ua haujlwm. Thaum cov molecular hnyav ultra-siabcov tshuaj silicone masterbatchesraug ntxiv rau hauv cov yas rau lawv cov nonpolar thiab nrog lub zog qis ntawm qhov chaw, nws muaj qhov sib txawv los mus rau qhov chaw yas thaum lub sijhawm yaj; thaum, txij li nws muaj qhov hnyav molecular loj, nws tsis tuaj yeem txav tawm tag nrho. Yog li peb hu nws tias kev sib haum xeeb thiab kev sib koom siab ntawm kev tsiv teb tsaws chaw thiab tsis tsiv teb tsaws chaw. vim yog cov cuab yeej no, ib txheej dynamic lubrication tsim ntawm qhov chaw yas thiab lub hau ntswj.
Nrog rau kev ua cov txheej txheem txuas ntxiv mus, cov txheej txheem roj no raug tshem tawm tas li thiab tsim tawm. Yog li ntawd, cov dej ntws ntawm cov resin thiab kev ua cov txheej txheem tau txhim kho tas li thiab txo cov hluav taws xob tam sim no, cov khoom siv torque thiab txhim kho cov zis. Tom qab kev ua cov twin-screw, silicone masterbatches yuav raug faib sib npaug hauv cov yas thiab tsim cov roj me me 1 txog 2-micron hauv qab lub tshuab microscope, cov roj me me ntawd yuav muab cov khoom zoo nkauj dua, zoo nkauj tes xis, COF qis dua, thiab kev puas tsuaj thiab khawb ntau dua.
Los ntawm daim duab peb tuaj yeem pom tias silicone yuav dhau los ua cov khoom me me tom qab raug tawg hauv cov yas, ib qho peb yuav tsum taw qhia yog tias qhov kev sib kis yog qhov tseem ceeb rau cov silicone masterbatches, qhov me dua ntawm cov khoom me me, qhov sib npaug ntau dua, qhov tshwm sim zoo dua peb yuav tau txais.
Lub sijhawm tshaj tawm: Tsib Hlis-26-2023
