PTFE soro ayaresa ma bonding adhesion de akwan titiriw abien di dwuma: ɔhyew a ɛkorɔn melting (wim tebea a ɛkorɔn a ɛko tia, 9.5 MPa ahoɔden ne coupling agent, nanso ɛma awuduru mframa) ne sodium-naphthalene etching (5 MPa ntɛm adhesion, teateaa nnɔnhwerew 24-48 mfɛnsere, asiane nwura). Paw gyina nneɛma a atwa yɛn ho ahyia sohwɛ ne bere tenten ne bere tiaa mu adwumayɛ so.

Sɛ wosiesie na wosiesie no yiye a, ɛma PTFE ntama a ɛyɛ hyew kɛse no nkwa nna yɛ tenten. Hohoro bere a wode adi dwuma awie ne bere a woayɛ nwini awie no. Fa brɔs a ɛyɛ mmerɛw, nnuru a wɔde hohoro nneɛma a ɛnyɛ hwee, anaa nsa di dwuma ma nkekae. Mfa acid/alkali a ano yɛ den, bleach, anaa dade a wɔde twitwiw nneɛma nni dwuma da. Silicone ngo a wɔde sra no daa no ma ɔsɛe so tew. Di akwankyerɛ ahorow yi akyi na amma nneɛma a wɔde kata so no ansɛe.

PTFE teyp a ɛyɛ hyew kɛse no ntumi nnyina ionizing radiation ano yiye. Wɔ 1 kGy pɛ gamma exposure, tensile ahoɔden so tew kɔ ~25% mfitiaseɛ. Ɛfata mmeae a wɔmfa nnuru pii nni dwuma nkutoo (aduan/aduruyɛ mu sterilization <10 kGy). Sɛ wopɛ nuklea adwumayɛ anaa ahunmu ahyɛn a, fa polyimide anaa PEEK di dwuma mmom.

PTFE emulsion su a wɔsɔ hwɛ no fa nsɛnkyerɛnne atitiriw asia ho: nea ɛyɛ den (60±2% wɔ T/FSI biara mu 067-2021), pH (9.0-11.0), nneɛma nketenkete no kɛse kyekyɛ (laser diffraction/DLS), viscosity (12-30 mPa·s wɔ 25°C), sɛnea ɛyɛ den (centrifugal, thermal, freeze-thaw), ne sɛnea ɛte. Saa akwankyerɛ yi ka standard test akwan a wɔfa so yɛ parameter biara ho asɛm.

Wɔ PTFE teyp a ɛyɛ hyew kɛse wɔ bere tenten a wɔde hyɛ mu ase no, PTFE substrate no da so ara yɛ nea nnuru ntumi nyɛ adwuma, nanso ade a wɔde nkata so no ne ade a ɛyɛ mmerɛw. Nsu ma silicone PSA yɛ mmerɛw; nkyene nsu ma nkyene yɛ ntɛmntɛm. Wɔ nnuru a ɛyɛ den ho no, fluorosilicone anaa perfluoropolyether adhesives – anaasɛ PTFE tape a adhesive nnim – ho hia. Peel ahoɔden a ɛyera kodu 40% wɔ nnɔnhwerew 48 akyi wɔ nsu mu.

Ɛsɛ sɛ PTFE teapɔn a ɛyɛ hyew kɛse a wɔde di dwuma wɔ aduan a wɔde di nkitaho mu no tra ɔhyew anohyeto a wɔakyerɛkyerɛ mu mu: ≤260°C ma ɛkɔ so de di dwuma, ≤300°C ma ne sorokɔ ntiantiaa (simma), na ɛnboro 327°C da (ɛporɔw). FDA ne EU mmara nkyerɛ amansan bere anohyeto – bere tenten a ahobammɔ wom a wɔde di nkitaho no gyina ɔhyew so na ɛsɛ sɛ wɔde atutra sɔhwɛ ahorow a ɛyɛ tebea ankasa ho mfonini di ho adanse.

PTFE ntama a ɛyɛ hyew kɛse ne silicone ntama nyinaa de fiberglass ntama di dwuma sɛ nnyinaso nanso ɛsono wɔ nneɛma a wɔde kata so (PTFE resin vs silicone rɔba). PTFE di mu wɔ nea ɛnyɛ nea ɛbata, nea ɛko tia ɔsɛe, ne nnuru a ɛko tia kodu 260°C mu. Silicone ntama ma wotumi yɛ nsakrae a ɛkorɔn, ɛma anyinam ahoɔden siw ano, na ogya ntumi nhyew (ɛkɔ soro kodu 230°C). Gyina nea ɛho hia wo so paw.

PTFE ntama a ɛyɛ hyew kɛse (PTFE membrane material) yɛ ade a ɛkorɔn a wɔpaw ma tensile architecture. Mfasoɔ titire: mfeɛ 30+ abɔnten asetena, ne ho tew asase (osuo nsuo hohoro efĩ), hann a ɛyɛ mmerɛw a ɛkɔ (6-13%), Class A ogya rating, ne dadeɛ-te sɛ ahoɔden a ɛba fam 1.5 kg/m2. Wɔde di dwuma wɔ agumadibea ahorow, wimhyɛn gyinabea ahorow, ne adan a ɛyɛ nwonwa mu wɔ wiase nyinaa.

PTFE teapɔn a ɛyɛ hyew kɛse hwehwɛ sɛ wɔkora so yiye na ama akɔ so abata ho, ayɛ nsakrae, na ayɛ adwuma yiye. Nneɛma atitiriw a wɔhwehwɛ ne ɔhyew a wɔhwɛ so (10-30°C), ɔhyew a ɛba fam sen 60%, hann a wɔkwati, nnuru a wɔde bɛtew wɔn ho, nea wɔde besi hɔ gyina hɔ, ne mframa a wɔde bɛma. Di FIFO nneɛma a wɔakora so no sohwɛ akyi na hwɛ mu daa.

Sɛ wobɛpaw PTFE teyp a ɛfata a ɛyɛ hyew kɛse ama 3D printa mpa a ɛyɛ hyew a, ɛhwehwɛ sɛ wode w’adwene si nneɛma atitiriw anan so: ɔhyew a ɛko tia (ɛkɔ 260°C +), fiberglass-reinforced substrate (0.18mm a eye), silicone adhesive backing a ɛnyɛ nea ɛbata soro soro, ne ne tɛtrɛtɛ/abodwokyɛre a ɛfata. Saa akwankyerɛ yi boa wo ma wokwati warping, residue, ne print huammɔdi.