Chemical plant-ah te, electroplating line-ah te, leh semiconductor fab-ah te chuan hmanrua te chu acid, alkalis leh solvent na tak tak te nen an inzawm reng a ni. Protective material dik thlan hian himna leh hmanrua dam chhung a nghawng nghal vek a ni.
PTFE (polytetrafluoroethylene) hi chemical inertness nasa tak a neih avangin 'plastic king' tia koh a ni fo thin. Mahse 'inert' tih hian 'invincible' tihna a ni lo – eng chemical nge a tichhe thei tak tak? Engtin nge temperature leh concentration hian a performance a nghawng?
Aokai PTFE -ah hian kum tam tak chhung test kan nei tawh a PTFE-a khuh puan te chu khawvel tak tak chemical environment lakah a ni. He thuziak hian fing taka i thlan theih nan kan thil hmuhchhuahte a rawn share a ni.
PTFE High-Temperature Fabric-in a do theih Chemicals
1. Acid chak tak tak
PTFE fabric hian:
Sulphuric acid (H2SO4) a ni a, a man hi a to hle.
Nitric acid (HNO3) a ni.
Hydrochloric acid (HCl) hmanga siam a ni.
Phosphoric acid (H3PO4) hmanga siam a ni.
Aqua regia leh hydrofluoric acid (HF) te ang chi acids oxidizing sang tak te .
2. Alkali chak tak tak
Sodium hydroxide (NaOH), potassium hydroxide (KOH), ammonia tui (NH3·H2O), leh alkaline thil chak dangte laka a do thei.
3. Organic Solvent hmanga siam chhuah te
Organic solvent tam zawk lakah chemical inert a ni a, chung zingah chuan alcohol (methanol, ethanol), ketone (acetone, MEK), aromatic hydrocarbons (benzene, toluene, xylene), leh gasoline te pawh a tel.
4. Chemical dangte
Oxident (eg, hydrogen peroxide), salt (sodium chloride, sodium sulfate), leh corrosive gas (chlorine, hydrogen sulfide) te lakah performance nghet tak a vawng reng thin.
Limitations – PTFE Fabric Tichhe thei Chemicals
Chemical resistance sang zawk nei mahse, PTFE high-temperature fabric hian extreme high-temperature emaw high-concentration condition-ah chuan tihkhawtlai a nei a ni. Chemical bik tlemte hian a hnuaia tarlan ang hian chhiatna a thlen thei a ni:
Thil awm thei lo (non-resistant Substances) te
Thil Tichhe thei Conditions & Effects
Alkali metal hmin (sodium, potassium) te chu a hmin tawh a.
PTFE molecular structure nasa takin a tichhia – PTFE chu carbon-ah a tlahniam ta a ni
Fluorinating agents chak tak (fluorine gas, chlorine trifluoride, perchloryl fluoride) te hi a tha hle.
React leh erode material, a bik takin temperature sang takah
Tin, PTFE coated fabric hi:
Chlorine trifluoride (ClF3) – a takin a kang thei
Oxygen difluoride (OF2) – tharum thawhna thlentu
Liquid emaw gaseous fluorine (F2) temperature sang takah – PTFE a bei thin
PTFE Coated Fabric-a Chemical Resistance nghawng thei thilte
-a corrosion resistance tak tak chu thil tam takin a nghawng a ni : PTFE high-temperature fabric Khawvel tak takah
Temperature: Chemical performance nghet tak chu -70°C atanga 260°C chhungah a awm reng a ni. Chemical bikte lakah chuan temperature sang lutukah chuan resistance a tlahniam.
Concentration: Hun rei tak chhung chu highly concentrated corrosive media-a thun chuan material performance a tichhe thei. On-site testing neih a tha.
Mechanical stress: Chemical corrosion leh mechanical friction te inzawmkhawm hian kum upa lam a ti chak hle. venhim a pawimawh hle – vawi khat a chhiat chuan a hnuaia fiberglass chu a hlauhawm ta hle. PTFE coating chu scratch atanga
Exposure hun chhung: Hun rei lote chhunga splash resistance hi continuous immersion nen a danglam.
Pressure: Pressure sang chuan chemical te chu microscopic pores emaw coating defect emaw ah a nawr lut thei a ni.
Aokai PTFE lab data atanga a lan dan chuan temperature-concentration synergy hi an ngaihthah fo thin. Entirnan, PTFE fabric 100°C-a 50% sulfuric acid-a kum tam tak awm thei chuan thla engemaw zat chhungin 200°C-a concentration inangah surface whitening a lantir thei a ni. Safety margin hmang fo ang che.
Thupui – PTFE High-Temperature Fabric-a Chemical Resistance
Chemical chi hrang hrang a awm
Resistance Level a ni
Notes
Acid chak tak (sulfuric, nitric, HCl, HF, aqua regia) te chu a awm a.
A tha lutuk
260°C thleng, hot concentrated oxidizing acids tih loh chu
Alkali chak tak (NaOH, KOH, ammonia) te chu a awm a.
A tha lutuk
Degradation lian tham a awm lo
Organic solvent (zu, ketone, aromatics, gasoline) te hi a tha hle.
A tha lutuk
Solvent thenkhatah chuan swelling a awm thei
Oxidant, salt, gas chhe thei te
A tha atanga Excellent thlengin
Condition bikte chu enfiah rawh
Alkali metals hmin tawh
A tling lo
Degradation kimchang tak a ni
Fluorinating agents chak tak tak a awm
A tling lo
Chemical reaction chu temps sang takah a awm
Industrial chemical environment tam zawk tan chuan PTFE coated fabric hian rintlak, hun rei tak daih theihna a pe a ni. Mahse, operating condition tak takah – a bik takin temperature, concentration, leh mechanical stress hnuaiah compatibility verify fo ang che.
A tawi zawngin , PTFE high-temperature fabric hian a hnathawhna hmun pangngai (-70°C atanga 260°C) chhungah acid, alkalis, leh organic solvent zawng zawng deuhthaw lakah a do theihna ropui tak a pe a ni. A danglamna ber chu molten alkali metal leh fluorinating agents chak tak tak te hi a ni. Oxidizing acid lum leh concentrated te pawh hian fimkhur zual a ngai bawk.
A taka hman chuan temperature, concentration leh mechanical stress te hian thil nunna a nghawng a ni. Condition pawimawh tak tak tan chuan on-site test emaw, maximum rated temperature aia hniam 30-40°C safety margin hman emaw kan rawt a ni.
Chemical environment bik chungchangah tanpuina i mamawh em? Aokai PTFE ’s technical team chuan media za tam tak tan corrosion data an khawlkhawm tawh a ni. Selection guidance emaw customized PTFE coated fabric solutions emaw duh tan min rawn biak theih reng e.
Jiangsu Aokai New Materials Technology Co., Ltd. atanga tihchhuah a ni.
Parameters chipchiar tak, application scenario, leh full-series products customized solutions te tan PTFE high temperature fabric, PTFE high temperature tape, PTFE mesh belt, seamless fusing belt, single-sided PTFE puan, high temperature resistant conveyor belt leh fiberglass fabric te pawh a tel a , min rawn biak theih reng e:
