PTFE nto kev kho mob rau kev sib khi adhesion siv ob txoj hauv kev: kub-kub melting (zoo tshaj huab cua tsis kam, 9.5 MPa lub zog nrog coupling tus neeg sawv cev, tab sis tso tawm cov pa roj carbon monoxide) thiab sodium-naphthalene etching (5 MPa tam sim adhesion, nqaim 24-48 teev lub qhov rais, pov tseg txaus ntshai). Xaiv raws li kev tswj hwm ib puag ncig thiab lub sijhawm ntev vs.

Kev tu thiab tu kom zoo txuas ntxiv lub neej ntawm PTFE high-temperature ntaub. Ntxuav tom qab siv thiab tom qab txias. Siv cov txhuam hniav mos, cov tshuaj ntxuav tes tsis huv, lossis dej cawv rau stains. Tsis txhob siv cov kua qaub/alkalis, tshuaj dawb, lossis hlau scrapers. Tsis tu ncua silicone roj lubrication txo hnav. Ua raws li cov lus qhia no txhawm rau tiv thaiv cov txheej txheem puas tsuaj.

PTFE high-temperature daim kab xev tsis zoo rau ionizing hluav taws xob. Thaum tsuas yog 1 kGy gamma raug, lub zog tensile poob rau ~ 25% ntawm thawj. Nws tsuas yog tsim nyog rau qhov chaw qis qis (khoom noj / kho mob kom tsis muaj menyuam <10 kGy). Rau kev lag luam nuclear lossis lub dav hlau, siv polyimide lossis PEEK hloov.

Kev ntsuas PTFE emulsion zoo suav nrog rau qhov ntsuas tseem ceeb: cov ntsiab lus khoom (60 ± 2% ib T / FSI 067-2021), pH (9.0-11.0), particle loj tis (laser diffraction / DLS), viscosity (12-30 mPa·s ntawm 25 ° C), thermal stability (freezet-zoo li, centrifugal). Phau ntawv qhia no suav nrog cov qauv kev sim rau txhua qhov ntsuas.

Rau PTFE high-temperature tapes nyob rau hauv lub sij hawm ntev immersion, PTFE substrate tseem chemically inert, tab sis cov nplaum txheej yog qhov tsis muaj zog. Dej tsis muaj zog silicone PSA; dej ntsev accelerates corrosion. Rau cov tshuaj phem, fluorosilicone los yog perfluoropolyether adhesives - los yog adhesive-dawb PTFE daim kab xev - yuav tsum tau. Peel lub zog poob mus txog 40% tom qab 48 teev hauv dej.

PTFE high-temperature daim kab xev siv nyob rau hauv daim ntawv thov kev sib cuag zaub mov yuav tsum nyob rau hauv cov kev txwv kub: ≤260 ° C rau kev siv tas mus li, ≤300 ° C rau luv peaks (feeb), thiab tsis txhob siab tshaj 327 ° C (decomposition). FDA thiab EU cov kev cai tsis qhia txog lub sijhawm txwv thoob ntiaj teb - lub sijhawm tiv thaiv kev nyab xeeb nyob ntawm qhov ntsuas kub thiab yuav tsum tau txheeb xyuas los ntawm kev kuaj kev tsiv teb tsaws simulating cov xwm txheej.

PTFE high-temperature npuag thiab silicone npuag ob leeg siv fiberglass ntaub los ua lub hauv paus tab sis txawv ntawm cov khoom siv txheej (PTFE resin vs silicone roj hmab). PTFE ua tau zoo nyob rau hauv tsis-stick, hnav tsis kam, thiab tshuaj tiv thaiv mus txog 260 ° C. Silicone npuag muaj qhov ua tau zoo dua qub, rwb thaiv tsev hluav taws xob, thiab hluav taws kub (txog 230 ° C). Xaiv raws li koj qhov tseem ceeb.

PTFE high-temperature npuag (PTFE membrane khoom) yog qhov kev xaiv zoo tshaj plaws rau tensile architecture. Cov txiaj ntsig tseem ceeb: 30+ lub neej nyob sab nraum zoov, qhov chaw tu tus kheej (cov dej nag ntxuav cov av), muag lub teeb kis tau tus mob (6-13%), Chav Kawm A hluav taws kub, thiab lub zog zoo li steel ntawm qis dua 1.5 kg / m². Siv nyob rau hauv chaw ntau pob, tshav dav hlau, thiab cov tsev iconic thoob ntiaj teb.

PTFE high-temperature daim kab xev yuav tsum tau cia kom zoo kom nws adhesion, yooj, thiab tso tawm kev ua tau zoo. Cov kev cai tseem ceeb suav nrog kev tswj qhov kub thiab txias (10-30 ° C), cov av noo qis dua 60%, kev zam lub teeb, kev cais tshuaj lom neeg, qhov chaw ntsug, thiab qhov cua. Ua raws li FIFO kev tswj cov khoom muag thiab tshuaj xyuas tsis tu ncua.

Xaiv txoj cai PTFE high-temperature daim kab xev rau 3D tshuab luam ntawv kub txaj yuav tsum tau tsom rau plaub qhov tseem ceeb qhia: kub tsis kam (txog 260 ° C +), fiberglass-reinforced substrate (0.18mm zoo tagnrho), silicone nplaum rov qab nrog uas tsis yog-stick saum npoo, thiab kom dav / kam rau ua. Cov lus qhia no pab koj kom tsis txhob muaj kev sib tsoo, qhov seem, thiab luam tawm tsis ua haujlwm.