PTFE high-temperature jira inogadzirwa kuburikidza ne-single-dip impregnation (imwe pass: inokurumidza, yakaderera-mutengo, yakaonda yakapfava, yakaoma pamusoro ine pinholes) kana yakawanda-dip impregnation (2-3+ inopfuura: yakatsetseka, dense, pinhole-isina coating, PTFE yemukati 50-70%, premium performance, mutengo wakakwira). Single-dip inokodzera yakaderera-giredhi gaskets, mameti echinguvana, uye zvinhu zvinofema. Multi-dip inodiwa kune chikafu-giredhi yekubikira mashiti, asiri-tsvimbo conveyor mabhandi, high-frequency circuit substrates, makemikari liner, uye architectural membranes.

PTFE yakakwirira-tembiricha jira pamusoro kurapwa inotyora kemikari inertness ye bonding/kudhinda. Nzira ina: kemikari etching (sodium-naphthalene, simba repamusoro 20→ 40-50 dyn/cm, rima risingaperi, micro-porous structure), kurapwa kweplasma (nano-roughening, kushanda kweboka rekubatanidza, hwindo pfupi rinoshanda), corona kurapwa (mutete-firimu, kuparara kwekukurumidza, kudzika zvishoma), uye laser kurapwa (chaiyo micro-pattering, controlled carbonization). Nzira dzese dzinoita roughen mumuviri uye nemakemikari dzinounza mapoka epolar (C=O, -OH, -COOH) kuti akwanise kunamira kubatana.

Raw material kuchena ndiyo hwaro hwakakosha hwePTFE yakakwirira-tembiricha machira mhando. Kusachena (zvakasara zvekutanga, ma surfactants, maion simbi, macontainated sizeng agents) anokonzera kushatisa nguva isati yakwana (mafuru, kuturuka kupfuura 260°C), kusaenzana kusiri kwetsvimbo (adhesion anchor points), kuderedzwa kwemagetsi ekuisa (dielectric loss, low breakdown voltage), kuderera kwesimba remagetsi (stressing yero/stress). Yakakwirira-kuchena mbishi zvinhu inovimbisa FDA-inoenderana, hupenyu hurefu, yakakwirira-inoshanda PTFE jira.

PTFE-yakavharwa nefiberglass jira sintering inoda chaiyo kubata nguva pa370-400°C. Mavhiri anoenderera mberi: 30-90s (yakaonda) kusvika 3-5+ min (yakakora). Batch furnaces: 5-15 min. Under-sintering inokonzera opaque, rough coatings kuti peel; kunyanya-sintering kunokonzera kutsvuka, brittleness, uye muchetura fluoride gasi kusunungurwa. Maitiro ekugonesa: shandisa tembiricha yekutevera tembiricha, ita yekutarisa yekuona (semi-pachena, inochinjika), uye ita tepi kudhonza bvunzo. Nguva dzose iva nechokwadi chekuzara-kuzara kwekushisa kufanana.

PTFE high-temperature jira inoda kungwarira kubata kuti ive nechokwadi chekuchengetedza uye hupenyu hurefu. Chengetedzo yakakosha: usambopfuura 260°C (pamusoro pe320°C inoburitsa utsi hune muchetura), dzivirira kutsemuka (pakatsemuka kuvharwa, kufumura fiberglass), hapana kuchenesa (simbi inokuvadza nzvimbo isina tsvimbo), chengetedza kupisa kwekuwedzera clearance (inodzivirira kubvaruka), uye kutsiva kana yaputika kana kusvunurwa. Chitoro chakakungurutswa, kure neUV. Pfeka magirovhosi anodzivirira kupisa panguva yekubata.

PTFE high-temperature jira ine coefficient of thermal expansion (CTE) ye 30-60 ppm/°C (warp/weft) - yakakwirira kudarika fiberglass chete asi yakaderera zvikuru pane yakachena PTFE (100-200 ppm/°C). PTFE inongoerekana yachinja vhoriyamu (1-2%) pa19°C uye 30°C shanduko yechikamu. Kuti udzivise kuputika, kubvarura, uye delamination: dhizaini yedhizaini yekuwedzera mahara, dzivirira kushushikana kuburikidza nechikamu chekuchinja tembiricha, shandisa otomatiki tensioner pamabhandi ekutakura, uye shandisa anti-buckling overlap dhizaini. Kugara uchiongorora kutonhora kuyerera kwakakosha.

PTFE high-temperature machira ekubikisa mabheti anopa mana akakosha mabhenefiti: kusashanda kwetsvimbo (hapana mafuta kana hupfu hunodiwa, mabheki akapfava anoburitswa zvakachena), tembiricha yakakura (-70 ° C kusvika 260 ° C, yakachengeteka muhovhoni kusvika mufiriji), kushandiswazve (zviuru zvemajini, zviri nyore kuchenesa), uye kunyange kupisa conduction (kunodzivirira kupisa, kudzikamisa brown). Chikafu-giredhi FDA inoenderana, ivo vanobuda kunze bepa rematehwe uye kupfuura e-silicone mats ane zvirinani kutamisa kupisa uye kunaka kwepamusoro magadzirirwo.

PTFE high-temperature jira yakakosha muindasitiri yenguo interlining. Zvishandiso zvakakosha: mabhandi asingagumi ekutakura mabhandi ekuenderera mberi kusanganisa michina (inodzivirira inopisa inonyunguduka inonamatira, isina kuunyana kutakura), isina-tsvimbo yekuvharira uye jira repadhi remashina ekupisa (anodzivirira maplatens kubva pakusvibiswa kweanonamatira), mabhandi ekutakura e dot paste/powder coating inlines kuomesa/kunyungudutsa), uye mavhavha eshangu dzesimbi yekutsikirira muenzaniso. Hukobvu hunotangira pa 0.13mm (light padding) kusvika 0.55mm (heavy-duty conveyor belts).

Anti-static PTFE jira rinowanikwa nenzira mbiri huru: kupfekedza doping (kusanganisa conductive mafirita senge kabhoni dema muPTFE emulsion, kugadzira percolation network panguva yakaoma concentration) uye substrate weaving (kupinza conductive fibers mu fiberglass jira). Surface resistivity inodzorwa pa10⁵–10⁹ Ω. Iyo musimboti: gadzira iyo conductive nzira inodonhedza static charges ipapo, kudzivirira kuunganidzwa kune njodzi. Grounding inosungirwa kuti ishande inoshanda.

PTFE high-temperature fabric (PTFE-coated fiberglass) inopa yakasarudzika makemikari kuramba, withstanding concentrated acids (kusanganisira aqua regia), alkali yakasimba (pakamuri tembiricha), organic zvinonyungudutsa, uye oxidizing agents. Kunze kwe: simbi yakanyungudutswa yealkali uye yakakwirira-tembiricha halogen makomisheni anorwisa PTFE. Kukuvadzwa kwekuputira kunofumura fiberglass kune hydrofluoric acid uye inopisa yakadzika alkalis. Tembiricha iri pamusoro pe260°C inoderedza kuramba. Kune akawanda emakemikari nharaunda, PTFE jira rinoramba rakagadzikana uye rakavimbika.