Acetals yog siv los tiv thaiv pawg rau carbonyl pawg hauv cov organic synthesis vim tias lawv ruaj khov nrog kev hwm rau hydrolysis los ntawm cov hauv paus thiab kev hwm rau ntau oxidizing thiab txo cov neeg ua haujlwm.Lawv tuaj yeem tiv thaiv cov carbonyl hauv ib lub molecule (los ntawm kev ua rau nws nrog cawv ib ntus) lossis diol (los ntawm kev ua rau nws nrog carbonyl ib ntus).Ntawd yog, ob qho tib si carbonyl, lossis cov cawv, lossis ob qho tib si tuaj yeem yog ib feem ntawm cov molecule uas nws cov tshuaj tiv thaiv yuav tsum tau tswj.
PTFE muaj cov cuab yeej siv tau zoo los ntawm qhov kub thiab txias ntawm 500 ° F (280 ° C) qhov kub thiab txias.Nws coefficient ntawm kev sib txhuam yog qis dua yuav luag txhua yam khoom siv.Nws kuj muaj cov pa oxygen siab.
Kev sib piv ntawm Acetal thiab Polymer PTFE / FEP Property Values
Cov ntaub ntawv siv
Acetal: Bearings; Bushings; Cov khoom siv hluav taws xob; Gears; Rollers; Twj & valve qhov chaw.
Polymer PTFE / FEP: Cabling kev daws teeb meem; Tsis yog lubricated bearings; O-rings; Foob; Capacitors; Semiconductor manufacturing; Kub kub hluav taws xob qhov chaw; Gaskets; Valve Cheebtsam.
Khoom Khoom
Acetal: Tsawg noo noo nqus; siab txhua yam muaj zog thiab rigidity; Machinability; Zoo tshuaj tiv thaiv; Zoo seem stability.
Polymer PTFE / FEP: Zoo heev dielectric zog; Inertness rau feem ntau cov tshuaj; siab kub thiab tshuaj tiv thaiv; Tsis tshua muaj coefficient ntawm kev sib txhuam; Zoo heev hluav taws xob tsis kam; xoom noo noo nqus; Resensitive rau lub zog zaus; Machinability.
Post lub sij hawm: Nov-22-2016