1. Polytetrafluoroethylene PTFE (F4)
Siv tau xov xwm: muaj zog acid, muaj zog alkali, muaj zog oxidant, thiab lwm yam.; Ua haujlwm kub -200 ~ 180 degree;
Nta: Danfoss li qub muaj tshuaj lom neeg ruaj khov zoo heev, ua haujlwm kub kub, thiab ua haujlwm txias; Kev sib txhuam coefficient tsawg heev, thiab lawv yog cov khoom siv zoo rau nws tus kheej lubricating, tab sis lawv muaj cov khoom siv hluav taws xob tsawg, cov dej tsis zoo, thiab cov thermal expansion loj.
2. Polyperfluoroethylene propylene FEP (F46)
Cov ntaub ntawv siv tau: txhua yam organic hnyav lossis reagent, dilute lossis concentrated inorganic acid, alkali, ketone, aromatic hydrocarbon, chlorinated hydrocarbon, thiab lwm yam.;
Ua haujlwm kub: -85-150 degree ;
Nta: Cov khoom siv hluav taws xob, hluav taws xob thiab tshuaj lom neeg ruaj khov yog qhov zoo ib yam li F4, tab sis nws cov txiaj ntsig zoo tshaj plaws yog siab zog toughness thiab zoo heev huab cua tsis kam thiab hluav taws xob tiv thaiv.
3. Polytrifluoroethylene PCTEF (F3)
Cov ntaub ntawv siv tau: ntau yam organic solvents, inorganic corrosive kua (oxidizing acids);
Ua haujlwm kub: -195-120 degree ;
Nta: Cov cua sov ua haujlwm, cov khoom hluav taws xob thiab tshuaj lom neeg ruaj khov yog qhov thib ob tsuas yog F4, thiab cov khoom siv dag zog, kev ua haujlwm siab thiab tawv tawv zoo dua F4.
4. Polyvinylidene fluoride PVDF (F2)
Siv tau xov xwm: Resistant mus rau feem ntau cov tshuaj thiab cov kuab tshuaj;
Ua haujlwm kub: -70 ~ 100 degree;
Nta: Lub zog tensile thiab compressive zog yog zoo dua F4, thiab nws yog resistant rau dabtsi yog khoov, weathering, hluav taws xob, lub teeb thiab kev laus. Qhov loj tshaj feature yog zoo toughness thiab yooj yim rau daim ntawv.
5. Polypropylene RPP
Cov xov xwm siv tau: aqueous daws ntawm inorganic ntsev, dilute los yog concentrated daws ntawm inorganic acids thiab alkalis;
Ua haujlwm kub: -14-80 degree ;
Nta: Ib qho ntawm cov plastics lightest, nws cov yield, tensile thiab compressive zog, thiab hardness yog tag nrho zoo dua li tsawg-pressure polyethylene, thiab nws muaj zoo rigidity; zoo kub tsis kam, yooj yim rau kev tsim, thiab tus nqi qis. Tom qab kev hloov kho, qhov cuam tshuam dynamic, fluidity thiab bending elastic modulus yog txhim kho.