1. TPE yog dab tsi?
Thermoplastic Elastomer (TPE) yog ntau yam khoom siv polymer uas sib txuas cov khoom ntawm cov thermoplastics thiab elastomers. Nws yog ib hom roj hmab hluavtaws uas tuaj yeem yaj thiab hloov pauv ntau zaus yam tsis muaj kev cuam tshuam loj. TPEs paub txog lawv qhov kev hloov pauv, kev ua haujlwm, thiab ua haujlwm ntev, ua rau lawv haum rau ntau yam kev siv thoob plaws ntau yam lag luam.
TPEs yog tsim los ntawm cov polymer matrix, feem ntau yog cov khoom siv thermoplastic, nrog cov khoom tawg yooj yim elastomeric. Qhov kev sib xyaw tshwj xeeb no muab TPEs nrog cov khoom xws li softness, stretchability, thiab tsis kam mus cuam tshuam. Lawv nthuav tawm tus cwj pwm elastomeric, tso cai rau lawv ncav cuag thiab rov qab mus rau lawv qhov qub yam tsis muaj deformation mus tas li.
Cov txheej txheem tsim khoom ntawm TPE suav nrog kev sib xyaw cov khoom siv thermoplastic thiab elastomeric, uas tuaj yeem ua tiav siv ntau yam txuj ci xws li kev txhaj tshuaj molding, extrusion, lossis tshuab molding. Qhov kev hloov pauv hauv kev ua haujlwm no tso cai rau TPEs tuaj yeem ua rau cov duab thiab qhov ntau thiab tsawg, ua rau lawv tsim nyog rau cov qauv tsim.
TPEs muaj ntau yam zoo dua li cov khoom siv roj hmab tsoos. Lawv yog lub teeb yuag, muaj cov tshuaj tiv thaiv zoo, thiab tuaj yeem rov ua dua tshiab, ua rau lawv tus phooj ywg zoo dua. TPEs kuj muaj qhov ntsuas kub ntau dua piv rau cov roj hmab, tso cai rau lawv tswj hwm lawv cov khoom hauv qhov kub thiab txias.
Vim lawv muaj ntau yam, TPEs tau siv ntau yam kev siv. Lawv feem ntau pom muaj nyob rau hauv cov khoom siv tsheb, cov khoom siv, cov khoom siv hluav taws xob, cov khoom siv kho mob, thiab cov khoom muag muag. TPEs kuj tau txais koob meej hauv kev lag luam khau, uas lawv tau siv los tsim cov khau yooj yim thiab hloov tau yooj yim.
2. TPU yog dab tsi?
Thermoplastic Polyurethane (TPU) yog ib hom thermoplastic elastomer uas muaj kev sib xyaw ua ke ntawm cov khoom, ua rau nws nrhiav tau ntau yam kev lag luam. TPU yog muab los ntawm cov tshuaj tiv thaiv ntawm diisocyanates thiab polyols, uas ua rau ib tug polymer nrog alternating nyuaj thiab mos ntu.
TPU muaj cov cuab yeej zoo heev, suav nrog lub zog tensile siab, ua haujlwm tsis zoo, thiab elongation. Nws nthuav tawm tus cwj pwm elastomeric, tso cai rau nws ncav cuag thiab compressed yam tsis muaj deformation mus tas li. Qhov kev hloov pauv no thiab kev ua haujlwm tau ua rau TPU haum rau cov ntawv thov uas xav tau ob qho tib si durability thiab yooj.
Ib qho ntawm cov yam ntxwv tseem ceeb ntawm TPU yog nws qhov dav ntawm cov qib hardness. Nws tuaj yeem ua tau los ntawm cov mos mos thiab hloov tau mus rau nruj thiab tawv, nyob ntawm seb cov txheej txheem tshwj xeeb thiab kev ua haujlwm. Qhov kev ua tau zoo no tso cai rau TPU kom haum rau cov kev siv sib txawv, los ntawm cov khoom muag muag thiab cov khau khau rau cov ntsaws ruaj ruaj thiab gaskets.
TPU kuj muaj cov tshuaj tiv thaiv zoo, uas ua rau nws tiv taus cov roj, cov kuab tshuaj, thiab lwm yam hnyav. Tsis tas li ntawd, nws nthuav tawm cov kev tiv thaiv zoo heev rau hydrolysis thiab microbial nres, ua rau nws tsim nyog rau kev siv sab nraum zoov thiab dej.
Nyob rau hauv cov nqe lus ntawm kev ua, TPU tuaj yeem yooj yim yaj thiab zoo li siv cov tswv yim xws li kev txhaj tshuaj molding, extrusion, thiab tshuab moulding. Nws muaj qhov zoo ntawm cov dej ntws zoo, tso cai rau kev sib txuam thiab cov qauv tsim kom tiav.
Muaj ntau hom kev siv rau TPU suav nrog cov khoom siv tsheb, cov khaub ncaws ncaws pob thiab cov khoom siv sab nraum zoov, cov khoom siv hluav taws xob, cov khoom siv kho mob, cov khoom lag luam, thiab lwm yam. Nws lub peev xwm los ua ke cov khoom ntawm cov roj hmab thiab cov thermoplastics ua rau nws nyiam xaiv rau cov ntawv thov uas xav tau kev hloov pauv, ua haujlwm ntev, thiab kev xaiv kho kom haum.