PTFE high-temperature fabric hi normal operating condition-ah chuan mak tak maiin a stable a – 260°C thlenga temperature chhunzawm zel leh 300°C thlenga excursion tawi te chu a chhe thei lo. Mahse kangmeiah chuan a lumna 400-500°C aia sang a nih chuan chu thil chu lumna hmangin a chhe tan thin. Tin, gas chhuakte hi meikhu pangngai a ni lo.
Heng hlauhawmte hriatthiam hi hnathawhna hmun himna atan te, kangmei laka invenna tur ruahmanna siam nan te, leh PPE thlan dan tur dik tak atan te a pawimawh hle.
Aokai PTFE hian PTFE-coated puan an siam chhuak thin. Hriselna hi kan ngai pawimawh hle. He kaihhruaina hian eng gas nge chhuah tih te, a toxicity te, leh kangmei chhuahna hmuna inven dan tur te a sawifiah a ni.
Gas thihna thlentu hmasa ber – Hydrogen Fluoride (HF) .
PTFE a kang chuan carbon-fluorine bonds te chu a chhe thin. Fluorine atom te hi tui emaw thil dang atanga hydrogen nen an inzawm khawm a, hydrogen fluoride (HF) an siam thin.
Thil neih leh hlauhawmna
Gas rawng nei lo, rimtui tak, rimtui tak.
Corrosive sang tak – tuiah a inthiar chhuak a, hydrofluoric acid a siam thin.
Thlawhna kawng, vun leh mit nasa takin a ti na a, a tichhe bawk.
A nasat chuan pulmonary edema (lung chhunga tui awm) a thlen thei.
PTFE kangmei inhal avanga thihna thlentu lian ber chu HF a ni.
Note: HF hi inhalation-ah chauh a toxic lo – vun hnim emaw mit emaw nena inzawmna chuan chemical burn thuk tak, tihdam zawi zawiin a thlen thei. Concentration hniam pawh hi a hlauhawm hle.
A rilru a buai em em a, a rilru a hah em em bawk a. Perfluoroisobutylene (PFIB) .
HF aiin a hlauhawm zawk, mahse hriat hlawh lo zawk chu perfluoroisobutylene (PFIB) a ni.
Thil neih leh hlauhawmna
Rangka nei lo leh rim nei lo – i rim pawh i hre thei lo.
Fluoropolymer hal atanga a bik taka siam gas toxic tak.
Toxicity hi phosgene aiin a let 10 velin a tam zawk a ni . (WWI-a hman thin chemical warfare agent)
Inhalation hian lung alveoli a tichhia a, pulmonary edema nasa tak a tikhawtlai a – darkar tam tak chhung chu symptoms a lang lo thei.
Antidote tha tak a awm lo. Enkawlna hi a thlawp (oxygen, mechanical ventilation) a ni.
Vaukhânna pawimawh tak: PFIB hi rim a nam lo va, a lan chhuahna a tlai avangin hnathawkte chuan darkar engemaw zat hnuah, thawk lama harsatna nasa tak a lo awm hma chauhvin an inhriatchhuah an hre lo mai thei. Hei hian PFIB hi a bik takin a tibuaitu a ni.
Toxic Gases leh Particulates dangte
HF leh PFIB bakah hian PTFE meikhuah hian thil tha lo dang a awm a:
Carbon monoxide (CO) – eng organic material pawh kang kim lo atanga lo chhuak. Rangka nei lo, rim nei lo, hemoglobin nen a inzawm tlat.
Fluorine awmna particulate tha tak tak – chu chu lung chhung thuk takah inhnim theih a ni.
Perfluorooctanoic acid (PFOA) residues – PTFE siamna atanga surfactant awmsa te hian temperature sang takah toxic fume a chhuah thei (tunlai PTFE hian PFOA a tihhniam tawh nachungin).
Trace dioxins – PTFE hi chlorine awmna thil (eg, PVC wiring, coating thenkhat) nen a kang dun chuan polychlorinated dibenzo-dioxins leh furans te a lo piang thei a ni.
Safety Warnings – PTFE Kangmei chhuahna hmuna Tih tur
1. Evacuate hmasa phawt ang che. Tichuan responder te chu humhim rawh.
PTFE high-temperature fabric hian kang a chhuah chuan a pawimawh ber chu meikhu hi inhnim loh hi a ni . Chu hmun chu chhuahsan nghal rawh.
2. PPE dik tak – meikhu mask pangngai hi a tangkai lo
A mamawh: Self-contained breathing apparatus (SCBA) full facepiece nei, acidic gas filter thei leh boruak thianghlim pe thei.
Engvangin nge mask pangngai ni lo: Standard N95 emaw surgical mask emaw hian HF, PFIB, emaw fine particulates emaw a titawp lo. Chemical cartridge respirator pawh PFIB tan a tling lo mai thei.
Vun venhimna: Taksa pum venna thawmhnaw leh kutkawr hmang rawh – HF hian thil pangngaiah a lut thei.
3. First aid leh damdawi lam chhanna
Meikhu chu a inhnim palh a nih chuan boruak thianghlim lamah kal nghal rawh.
Emergency medical treatment zawng rawh – symptoms nghak suh.
Pawimawh: A kaihhnawih symptoms (a bik takin PFIB atanga lo chhuak ) te hi darkar 24 thleng a tlai thei. A tir lamah chuan chu mi chuan dam thain a hria a nih pawhin doctor-in a endik tur a ni.
Damlo chu PTFE combustion products-a a inhriat thu medical staff-te hriattir rawh – HF leh PFIB poisoning hian specific supportive care a mamawh a ni.
Aokai PTFE himna thu: PTFE puan hi hman pangngai atan leh a chhe lova rei vak lo a lum lutuk tan pawh a him. Heng gas te siam chhuah nan hian mei a ngai a ni. Mahse, PTFE material hmanga facility-a kangmei laka himna tur ruahmannaah chuan SCBA hmanrua leh natna lan chhuah hun sawn hlat dan zirtirna te a tel tur a ni.
Thupui – Risk te hre la, chutiang chuan ruahmanna siam rawh
Gas a ni
Thil neih
Toxicity a awm thei
Hriselna atana venhimna
HF
Pungent, corrosive, rawng nei lo
Pulmonary edema, kang na tak
SCBA, PPE kimchang a ni
PFIB a ni
Hriak rim nei lo, rawng nei lo
~10x phosgene, pulmonary edema tlai, antidote awm lo
SCBA (chauh) 1.1.
CO
Hriak rim nei lo, rawng nei lo
Asphyxiation tih hi a ni
SCBA a ni
Particulate a awm
Thil chi hrang hrang (fine particles) te
Lung chhiatna
SCBA, HEPA filter hmanga siam a ni
Takeaway pawimawh tak tak:
PTFE puan hi hman pangngaiah chuan a him – 300°C hnuaiah a chhe lo.
Kangmeiah chuan hydrogen fluoride leh perfluoroisobutylene (PFIB) a chhuak a, chungte chu a toxic hle a ni.
PFIB hi a hlauhawm hle – rimtui nei lo, antidote nei lo, symptoms tlai deuh.
Meikhu mask pangngai hmang ngai suh. SCBA neih a ngai a ni.
Exposure hnuah chuan symptoms awm nghal lo mahse medical evaluation zawng rawh.
Aokai PTFE hian kan PTFE fabric product zawng zawngah safety data sheet (SDS) a pe vek a. Customer te chu an safety team te nen fire response protocol te enfiah turin kan rawt a ni.
