Los ntawm lub zeem muag ntawm kev xav:
PC (Polycarbonate): Qhov no yog ib lub yas tsis muaj xim, pob tshab uas zoo nkauj thiab du. Vim nws tsis muaj tshuaj lom thiab tsis muaj ntxhiab, nrog rau nws cov khoom zoo heev UV-blocking thiab noo noo-tuav, PC muaj ntau qhov kub thiab txias. Nws tseem tsis tawg ntawm -180 ° C thiab tuaj yeem siv tau ntev ntawm 130 ° C, ua rau nws yog cov khoom siv zoo tagnrho rau kev ntim khoom noj.
PET (Polyethylene Terephthalate) : Qhov no yog ib yam khoom siv uas muaj cov pob zeb crystalline heev, tsis muaj xim, thiab pob tshab uas tawv heev. Nws zoo li iav, tsis muaj ntxhiab, tsis muaj saj, thiab tsis muaj tshuaj lom. Nws yooj yim hlawv, tsim cov nplaim daj nrog ntug xiav thaum hlawv, thiab muaj cov yam ntxwv zoo tiv thaiv roj.
Los ntawm qhov pom ntawm cov yam ntxwv thiab daim ntawv thov:
PC: Nws muaj kev tiv thaiv zoo heev thiab yooj yim rau pwm, tso cai rau nws los tsim rau hauv lub raj mis, lub thawv, thiab ntau yam thawv rau cov kua ntim xws li dej haus, cawv, thiab mis nyuj. Qhov tsis zoo tseem ceeb ntawm PC yog nws qhov kev cuam tshuam rau kev ntxhov siab tawg. Txhawm rau txo qhov no thaum lub sijhawm tsim khoom, cov khoom siv raw khoom siab-purity raug xaiv, thiab ntau yam kev ua tiav raug tswj hwm nruj me ntsis. Tsis tas li ntawd, siv cov resins nrog kev ntxhov siab sab hauv qis, xws li me me ntawm polyolefins, nylon, lossis polyester rau kev sib xyaw yaj, tuaj yeem txhim kho nws qhov kev tiv thaiv rau kev ntxhov siab tawg thiab dej nqus.
Tus tsiajNws muaj cov coefficient ntawm kev nthuav dav qis thiab qhov molding shrinkage qis tsuas yog 0.2%, uas yog ib feem kaum ntawm polyolefins thiab qis dua PVC thiab nylon, ua rau cov khoom loj ruaj khov. Nws lub zog kho tshuab yog suav tias yog qhov zoo tshaj plaws, nrog cov khoom nthuav dav zoo ib yam li txhuas. Lub zog tensile ntawm nws cov yeeb yaj kiab yog cuaj npaug ntawm polyethylene thiab peb npaug ntawm polycarbonate thiab nylon, thaum nws lub zog cuam tshuam yog peb txog tsib npaug ntawm cov yeeb yaj kiab txheem. Tsis tas li ntawd, nws cov yeeb yaj kiab muaj cov khoom tiv thaiv dej noo thiab aroma khaws cia. Txawm li cas los xij, txawm tias muaj cov txiaj ntsig no, cov yeeb yaj kiab polyester kim heev, nyuaj rau cua sov kaw, thiab yooj yim rau hluav taws xob static, yog vim li cas lawv tsis tshua siv ib leeg; lawv feem ntau ua ke nrog cov resins uas muaj cua sov zoo dua los tsim cov yeeb yaj kiab sib xyaw.
Yog li ntawd, cov fwj PET uas tsim los ntawm kev siv cov txheej txheem biaxial stretching blow molding tuaj yeem siv cov yam ntxwv ntawm PET tag nrho, muab cov pob tshab zoo, qhov ci ntsa iab siab, thiab zoo li iav, ua rau lawv yog cov fwj yas tsim nyog tshaj plaws los hloov cov fwj iav.
Lub sijhawm tshaj tawm: Kaum Ib Hlis-04-2024