Kev piav qhia ntawm lub ntsiab ntsuas ntsuas ntawm PTFE cov khoom

Muaj 10 yam khoom siv los tiv thaiv corrosion, thiab cov hauv qab no qhia txog lawv cov kev tshaj tawm thiab cov yam ntxwv:

1. Polytetrafluoroethylene PTFE (F4)

1. Siv tau nruab nrab: muaj zog acid, muaj zog alkali, muaj zog oxidant, organic hnyav, thiab lwm yam. Ua haujlwm kub: ≤180 ° C

2. Nta: Cov tshuaj lom neeg ruaj khov zoo heev, ua haujlwm kub thiab txias ua haujlwm;Tsis tshua muaj kev sib txhuam coefficient, zoo heev tus kheej-lubricating khoom, tsis zoo fluidity thiab loj thermal expansion.Nws cov khoom tshwj xeeb yog dhau qhov ncav cuag ntawm lwm cov ntaub ntawv, yog li PTFE lub npe hu ua "yas huab tais" thiab yog cov khoom siv corrosion-resistant tshaj plaws nyob rau hauv lub ntiaj teb niaj hnub no.

2. Soluble polytetrafluoroethylene (PFA)

1. Siv tau nruab nrab: muaj zog acid, muaj zog alkali, muaj zog oxidant, organic hnyav, thiab lwm yam. Ua haujlwm kub: ≤180 ° C

2. Nta: Nws yog ib hom tshiab ntawm fluorine-muaj resin zoo ib yam li F46.Nws yog ntau yam tshiab tsim los kov yeej qhov nyuaj ntawm kev ua thiab tsim polytetrafluoroethylene, thiab ua tiav cov kev ua tau zoo ntawm polytetrafluoroethylene.Cov khoom siv hluav taws xob zoo thiab hluav taws xob rwb thaiv tsev, zoo heev tiv thaiv tshav kub thiab tsis tshua muaj kev sib txhuam coefficient, nplaim retardant, tsis muaj pa luam yeeb thiab zoo atmospheric tsis kam.Qhov txiaj ntsig loj tshaj plaws yog nws yooj yim dua rau cov duab.

3. Polyperfluoroethylene propylene FEP (F46)

1. Siv tau nruab nrab: ib qho organic hnyav lossis reagent, dilute lossis inorganic acid, cawv, ketone, aromatic hydrocarbon, chlorinated hydrocarbon, thiab lwm yam. Ua haujlwm kub: ≤180 ° C

2. Cov Nta: Cov khoom siv hluav taws xob, cov khoom siv hluav taws xob thiab tshuaj lom neeg ruaj khov yog qhov zoo ib yam li cov F4, tab sis qhov zoo tshaj plaws yog qhov cuam tshuam toughness siab, txawm tias cov qauv tsis tu ncua yog rushed tsis tu ncua, nws muaj huab cua zoo heev thiab hluav taws xob, thiab yog ib qho yooj yim rau cov duab thiab txheej txheem.Nws yog ib qho fluorine-muaj resin tsim los kov yeej qhov nyuaj hauv kev tsim polytetrafluoroethylene.Ntxiv nrog rau kev siv kub qis dua F4, nws tuav cov khoom zoo ntawm polytetrafluoroethylene.

4. Polychlorotrifluoroethylene PCTFE (F3)

1. Siv tau nruab nrab: ntau yam organic solvents, inorganic etching kua (oxidizing acids).Ua haujlwm kub: ≤120 ° C

2. Nta: kub tsis kam, hluav taws xob khoom thiab tshuaj lom neeg stability yog thib ob tsuas yog F4, txhua yam muaj zog, creep kuj, hardness yog zoo dua F4.

5, polyvinylidene fluoride PVDF (F2)

1. Siv nruab nrab: resistant rau feem ntau cov tshuaj thiab cov kuab tshuaj.Ua haujlwm kub: ≤ 120 ° C

2. Nta: Tensile lub zog thiab compressive zog yog zoo dua F4, zoo bending thiab txias txaus tsis kam;huab cua tsis kam, hluav taws xob tsis kam, lub teeb ua haujlwm thiab tiv thaiv kev laus, thiab lwm yam. Qhov loj tshaj feature yog adhesion muaj zog, zoo toughness thiab yooj yim txoj kev.

6, hloov polypropylene (GXPP)

1. Siv tau nruab nrab: ib qho tsis tshua muaj los yog concentrated tov ntawm ib qho aqueous tov ntawm inorganic ntsev, inorganic acid los yog alkali.Ua haujlwm kub: ≤100 ° C

2. Nta: Nws yog ib qho ntawm cov khoom siv yas.Nws cov txiaj ntsig, tensile thiab compressive zog thiab hardness yog zoo dua li tsawg-pressure polyethylene.Nws muaj rigidity zoo, zoo tshav kub tsis kam, yooj yim molding thiab tus nqi qis.Tom qab kev hloov kho, qhov cuam tshuam, fluidity, thiab flexural modulus ntawm elasticity yog txhim kho.

7. Modified polyolefin (GXPO)

1. Siv tau nruab nrab: ntau cov kua qaub thiab alkali ntsev thiab qee cov kuab tshuaj organic.Ua haujlwm kub: ≤ 110 ° C

2. Nws yog cov khoom siv zoo tshaj plaws hauv ntiaj teb rau kev tiv thaiv corrosion, anti-static, non-toxic thiab siab zog.Nws tau dav siv nyob rau hauv loj-scale rotating khoom thiab li qub thiab kav rau hauv ob sab phlu.Dav siv nyob rau hauv chemical, metallurgical, zaub mov, tsheb thauj mus los, kws, textile thiab lwm yam lag luam.

8, polyvinyl chloride (nyuaj) PVC

1. Siv tau nruab nrab: dej resistant, concentrated alkali, non-oxidizing acid, saw hydrocarbon, roj thiab ozone.Ua haujlwm kub: ≤60 ° C

2. Nta: siab mechanical zog, tshuaj stability thiab dielectric zog, roj kuj thiab aging kuj zoo heev, yooj yim rau weld thiab daim ntawv cog lus, tus nqi qis dua.

9. Ultra siab molecular hnyav polyethylene (UHMW-PE)

1. Siv tau nruab nrab: Nws tuaj yeem tiv taus ntau yam corrosive media (tshwj tsis yog kua qaub, alkali, ntsev, tab sis oxidizing acid) thiab cov kuab tshuaj organic.Ua haujlwm kub: ≤100 ° C

2. Nta: zoo heev hnav tsis kam, tsis tshua muaj kev sib txhuam coefficient thiab nws tus kheej-lubricating;zoo heev kev nyuaj siab tawg kuj, kub creep kuj thiab tsis kub tsis kam;zoo heev tensile zog, tsis tshua muaj kev cuam tshuam lub zog.Zoo heev tshuaj stability thiab qaug zog tsis kam;tsis muaj adsorption ntawm qhov chaw, zoo heev hluav taws xob rwb thaiv tsev;tsis muaj kev ua tau zoo xws li non-toxicity.

10, FRP (phenolic) FRP

1. Siv tau nruab nrab: cov kuab tshuaj organic, roj resistant, acid thiab brine.Ua haujlwm kub: ≤ 120 ° C

2. Nta: Cov khoom siv siab, tsis tshua muaj kev sib txhuam coefficient nyob rau hauv dej lubrication, cov khoom siv hluav taws xob zoo thiab tsis tshua muaj zog acid thiab alkali corrosion, tsis yooj yim deformed los ntawm kev hloov kub thiab av noo, yooj yim tsim thiab tsis tshua muaj nqi.