Dab tsi yog qhov txawv ntawm Polyester TPU thiab Polyether TPU-3

Urethanes muaj kev tiv thaiv zoo heev. Lawv muaj kev hnav zoo dua li cov hlau, yas, thiab lwm yam roj hmab. Abrasion kuj tuaj nyob rau hauv ob hom: zawv zawg thiab impingement. Impingement yog hais txog cov khoom los yog cov khoom tawm tsam urethane nto ntawm lub kaum sab xis siab, qhov zawv zawg yog hais txog kev khawb thiab rub tawm.
Polyester urethane muaj kev tiv thaiv zoo rau zawv zawg abrasion ua rau nws zoo tagnrho rau CIPP, ntsaws ntsaws ruaj ruaj, scraper hniav.
Polyether urethanes muab qhov zoo tshaj plaws impingement abrasion kuj ua rau nws yog ib qho kev xaiv zoo tshaj plaws rau cov ntaub thaiv sandblast, bumpers, thiab rafts.
Tshuaj, roj, roj, hnyav, dej thiab tshuaj tiv thaiv
Yog hais tias TPU nyob rau hauv ib qho chaw high-humidity los yog submerged los yog tas li raug rau dej, polyether urethane yog ib qho kev xaiv zoo heev vim hais tias ntawm hydrolytic stability. Polyether TPU kuj muaj cov kab mob tsis zoo. Whereas yog hais tias cov khoom los nyob rau hauv kev sib cuag nrog roj, los yog fuels solvents, polyester urethane muab zoo heev tiv thaiv los ntawm hnyav tshuaj ua rau nws zoo tagnrho rau CIPP liners thiab cia tso tsheb hlau luam.
Kub thiab kub tsis kam
Polyesters tiv taus qhov kub thiab txias ntev dua thiab tiv taus cua sov dua.
Polyethers tsis tshua muaj kev cuam tshuam rau dynamic cua sov tsim. Tias yog vim li cas lawv yog cov kev xaiv rau high-ceev rollers qhov twg ceev flexing ua kom sov.
Polyether urethanes tsis tshua muaj kev cuam tshuam los ntawm txias txias piv rau Polyester TPUs.
Mechanical Properties
Polyester-based films yuav muaj zog tensile ntau dua thiab siab dua txiav thiab tsim kua muag thaum piv rau cov yeeb yaj kiab polyether.
Polyester yog qhov kev xaiv rau kev poob siab thiab siv dav hauv kev co dampening daim ntaub ntawv.
Polyether muab ntau dua rebound thiab yog li ntawd yog qhov kev xaiv rau skate log thiab high-ceev rollers.
Los ntawm tus nqi taw tes, polyethers yog kim dua polyester li cov polyol uas tsim cov ntu muag ntawm polyether feem ntau raug nqi siab dua ntawm cov ntaub ntawv raw thiab yog qhov nyuaj thiab nyuaj rau tsim, xav tau cov khoom siv siab heev. Tsis tas li ntawd, ua kom zoo dua hauv hydrolytic thiab kub tsis kam, qhov kev thov ntau dua rau polyether-based TPU.